From b5ccb913171f73f18b8743701d37a6e1e53df0d1 Mon Sep 17 00:00:00 2001
From: hehe1111 <2908749709@qq.com>
Date: Tue, 5 Apr 2022 20:50:45 +0800
Subject: [PATCH 01/38] =?UTF-8?q?=E8=B7=9F=20160=20=E8=A1=8C=E7=9A=84=20Co?=
 =?UTF-8?q?ntent-Type=20=E9=87=8D=E5=A4=8D=E4=BA=86=20(#241)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/bom/cors.md | 1 -
 1 file changed, 1 deletion(-)

diff --git a/docs/bom/cors.md b/docs/bom/cors.md
index 368ea0c..23dfac9 100644
--- a/docs/bom/cors.md
+++ b/docs/bom/cors.md
@@ -162,7 +162,6 @@ Content-Encoding: gzip
 Content-Length: 0
 Keep-Alive: timeout=2, max=100
 Connection: Keep-Alive
-Content-Type: text/plain
 ```
 
 上面的 HTTP 回应中，关键的是`Access-Control-Allow-Origin`字段，表示`http://api.bob.com`可以请求数据。该字段也可以设为星号，表示同意任意跨源请求。

From c0737828d443c2fb939054417c0a22a7505f0c75 Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Thu, 7 Apr 2022 13:47:00 +0800
Subject: [PATCH 02/38] docs(elements/input): edit valueAsNumber

---
 docs/elements/input.md |   13 +-
 package-lock.json      | 1523 ----------------------------------------
 2 files changed, 12 insertions(+), 1524 deletions(-)
 delete mode 100644 package-lock.json

diff --git a/docs/elements/input.md b/docs/elements/input.md
index 9a04e0e..fce544a 100644
--- a/docs/elements/input.md
+++ b/docs/elements/input.md
@@ -75,7 +75,18 @@
 - `labels`：返回一个`NodeList`实例，代表绑定当前`<input>`节点的`<label>`元素。该属性只读。
 - `step`：字符串，表示在`min`属性到`max`属性之间，每次递增或递减时的数值或时间。
 - `valueAsDate`：`Date`实例，一旦设置，该`<input>`元素的值会被解释为指定的日期。如果无法解析该属性的值，`<input>`节点的值将是`null`。
-- `valueAsNumber`：浮点数，当前`<input>`元素的值会被解析为这个数值。
+- `valueAsNumber`：浮点数，当前`<input>`元素的值会被解析为这个数值。如果输入框为空，该属性返回`NaN`。
+
+下面是`valueAsNumber`属性的例子。
+
+```javascript
+/* HTML 代码如下
+   <input type="number" value="1.234" />
+*/
+
+input.value // "1.234"
+input.valueAsNumber // 1.234
+```
 
 ## HTMLInputElement 的实例方法
 
diff --git a/package-lock.json b/package-lock.json
deleted file mode 100644
index 8a03e78..0000000
--- a/package-lock.json
+++ /dev/null
@@ -1,1523 +0,0 @@
-{
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-  "version": "0.0.1",
-  "lockfileVersion": 1,
-  "requires": true,
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-      "requires": {
-        "@babel/highlight": "^7.10.4"
-      }
-    },
-    "@babel/helper-validator-identifier": {
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-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.12.11.tgz",
-      "integrity": "sha512-np/lG3uARFybkoHokJUmf1QfEvRVCPbmQeUQpKow5cQ3xWrV9i3rUHodKDJPQfTVX61qKi+UdYk8kik84n7XOw=="
-    },
-    "@babel/highlight": {
-      "version": "7.10.4",
-      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.10.4.tgz",
-      "integrity": "sha512-i6rgnR/YgPEQzZZnbTHHuZdlE8qyoBNalD6F+q4vAFlcMEcqmkoG+mPqJYJCo63qPf74+Y1UZsl3l6f7/RIkmA==",
-      "requires": {
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-        "chalk": "^2.0.0",
-        "js-tokens": "^4.0.0"
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-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
-    },
-    "y18n": {
-      "version": "5.0.8",
-      "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
-      "integrity": "sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA=="
-    },
-    "yaml": {
-      "version": "1.10.0",
-      "resolved": "https://registry.npmjs.org/yaml/-/yaml-1.10.0.tgz",
-      "integrity": "sha512-yr2icI4glYaNG+KWONODapy2/jDdMSDnrONSjblABjD9B4Z5LgiircSt8m8sRZFNi08kG9Sm0uSHtEmP3zaEGg=="
-    },
-    "yargs": {
-      "version": "16.2.0",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-16.2.0.tgz",
-      "integrity": "sha512-D1mvvtDG0L5ft/jGWkLpG1+m0eQxOfaBvTNELraWj22wSVUMWxZUvYgJYcKh6jGGIkJFhH4IZPQhR4TKpc8mBw==",
-      "requires": {
-        "cliui": "^7.0.2",
-        "escalade": "^3.1.1",
-        "get-caller-file": "^2.0.5",
-        "require-directory": "^2.1.1",
-        "string-width": "^4.2.0",
-        "y18n": "^5.0.5",
-        "yargs-parser": "^20.2.2"
-      }
-    },
-    "yargs-parser": {
-      "version": "20.2.9",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.9.tgz",
-      "integrity": "sha512-y11nGElTIV+CT3Zv9t7VKl+Q3hTQoT9a1Qzezhhl6Rp21gJ/IVTW7Z3y9EWXhuUBC2Shnf+DX0antecpAwSP8w=="
-    },
-    "yocto-queue": {
-      "version": "0.1.0",
-      "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
-      "integrity": "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q=="
-    }
-  }
-}

From ff1663163febe084ad31008f05a6c7b0e3bbaa98 Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Sun, 10 Apr 2022 12:33:28 +0800
Subject: [PATCH 03/38] docs(bom/xmlhttprequest): edit Navigator.sendBeacon()

---
 docs/bom/xmlhttprequest.md | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/docs/bom/xmlhttprequest.md b/docs/bom/xmlhttprequest.md
index 8855064..66f662c 100644
--- a/docs/bom/xmlhttprequest.md
+++ b/docs/bom/xmlhttprequest.md
@@ -743,7 +743,7 @@ window.addEventListener('unload', function(event) {
 
 上面代码中，强制执行了一次双重循环，拖长了`unload`事件的执行时间，导致异步 AJAX 能够发送成功。
 
-类似的还可以使用`setTimeout`。下面是追踪用户点击的例子。
+类似的还可以使用`setTimeout()`。下面是追踪用户点击的例子。
 
 ```javascript
 // HTML 代码如下
@@ -768,7 +768,7 @@ theLink.addEventListener('click', function (event) {
 });
 ```
 
-上面代码使用`setTimeout`，拖延了350毫秒，才让页面跳转，因此使得异步 AJAX 有时间发出。
+上面代码使用`setTimeout()`，拖延了350毫秒，才让页面跳转，因此使得异步 AJAX 有时间发出。
 
 这些做法的共同问题是，卸载的时间被硬生生拖长了，后面页面的加载被推迟了，用户体验不好。
 
@@ -778,11 +778,13 @@ theLink.addEventListener('click', function (event) {
 window.addEventListener('unload', logData, false);
 
 function logData() {
-  navigator.sendBeacon('/log', analyticsData);
+  navigator.sendBeacon('/log', JSON.stringify({
+    some: "data"
+  }));
 }
 ```
 
-`Navigator.sendBeacon`方法接受两个参数，第一个参数是目标服务器的 URL，第二个参数是所要发送的数据（可选），可以是任意类型（字符串、表单对象、二进制对象等等）。
+`Navigator.sendBeacon()`方法接受两个参数，第一个参数是目标服务器的 URL，第二个参数是所要发送的数据（可选），可以是任意类型（字符串、表单对象、二进制对象等等）。
 
 ```javascript
 navigator.sendBeacon(url, data)
@@ -806,3 +808,16 @@ function analytics(state) {
   navigator.sendBeacon(URL, data);
 }
 ```
+
+该方法不允许自定义 HTTP 标头，为了以“application/json”的形式发送数据，可以使用 Blob 对象。
+
+```javascript
+const blob = new Blob(
+  [ JSON.stringify({ some: "data" }) ],
+  { type: 'application/json; charset=UTF-8' }
+);
+navigator.sendBeacon('/log', blob));
+```
+
+这个方法的优先级较低，不会占用页面资源。一般是在浏览器空闲的时候，才会发送。
+

From 37de2eb20d6b69eacce9930f796ed82aab47df5e Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Wed, 18 May 2022 13:42:03 +0800
Subject: [PATCH 04/38] docs(types/function): fix #245

---
 docs/types/function.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/types/function.md b/docs/types/function.md
index 76dcbfb..751bca5 100644
--- a/docs/types/function.md
+++ b/docs/types/function.md
@@ -1,6 +1,6 @@
 # 函数
 
-函数是一段可以反复调用的代码块。函数还能接受输入的参数，不同的参数会返回不同的值。
+函数是一段可以反复调用的代码块。函数还能接受输入的参数，不同的参数有唯一对应的返回值。
 
 ## 概述
 

From ad7cd2ba990f0d18aa6fa08a310f1c64d04535cd Mon Sep 17 00:00:00 2001
From: yuri <yuu2lee4@qq.com>
Date: Tue, 7 Jun 2022 15:04:25 +0800
Subject: [PATCH 05/38] Update number.md (#247)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

parseFloat参数不是字符串会先进行隐式类型转换
---
 docs/types/number.md | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/docs/types/number.md b/docs/types/number.md
index 64f0592..b61dc6a 100644
--- a/docs/types/number.md
+++ b/docs/types/number.md
@@ -552,7 +552,15 @@ parseFloat('3.14more non-digit characters') // 3.14
 parseFloat('\t\v\r12.34\n ') // 12.34
 ```
 
-如果参数不是字符串，或者字符串的第一个字符不能转化为浮点数，则返回`NaN`。
+如果参数不是字符串，则会先转为字符串再转换。
+
+```javascript
+parseFloat([1.23]) // 1.23
+// 等同于
+parseFloat(String([1.23])) // 1.23
+```
+
+如果字符串的第一个字符不能转化为浮点数，则返回`NaN`。
 
 ```javascript
 parseFloat([]) // NaN

From 87ce3dc5adee2b3caa7b9ec798957f0e98f2b697 Mon Sep 17 00:00:00 2001
From: IKKI2000 <ikki2002@qq.com>
Date: Thu, 30 Jun 2022 13:13:38 +0800
Subject: [PATCH 06/38] Update regexp.md (#249)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

补全 3.1 示例代码返回值~
---
 docs/stdlib/regexp.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/stdlib/regexp.md b/docs/stdlib/regexp.md
index 8e306e0..cc0f002 100644
--- a/docs/stdlib/regexp.md
+++ b/docs/stdlib/regexp.md
@@ -104,7 +104,7 @@ r.lastIndex = 4;
 r.test(s) // false
 
 r.lastIndex // 0
-r.test(s)
+r.test(s) // true
 ```
 
 上面代码指定从字符串的第五个位置开始搜索，这个位置为空，所以返回`false`。同时，`lastIndex`属性重置为`0`，所以第二次执行`r.test(s)`会返回`true`。

From 91b5581574ee490bd0cbfde91aa1d06db42ba8d7 Mon Sep 17 00:00:00 2001
From: IKKI2000 <ikki2002@qq.com>
Date: Thu, 30 Jun 2022 13:14:56 +0800
Subject: [PATCH 07/38] Update date.md (#250)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

补全 5.4 设置毫秒方法的参数~
---
 docs/stdlib/date.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/stdlib/date.md b/docs/stdlib/date.md
index 2b0326e..a44b2c8 100644
--- a/docs/stdlib/date.md
+++ b/docs/stdlib/date.md
@@ -479,7 +479,7 @@ d.getUTCDate() // 5
 - `setDate(date)`：设置实例对象对应的每个月的几号（1-31），返回改变后毫秒时间戳。
 - `setFullYear(year [, month, date])`：设置四位年份。
 - `setHours(hour [, min, sec, ms])`：设置小时（0-23）。
-- `setMilliseconds()`：设置毫秒（0-999）。
+- `setMilliseconds(ms)`：设置毫秒（0-999）。
 - `setMinutes(min [, sec, ms])`：设置分钟（0-59）。
 - `setMonth(month [, date])`：设置月份（0-11）。
 - `setSeconds(sec [, ms])`：设置秒（0-59）。

From 6eeecbf37e054517b6f4f0d23fdb597c6ff7f5e5 Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Wed, 16 Nov 2022 13:17:54 +0800
Subject: [PATCH 08/38] docs(basic/grammar): fix typo #253

---
 docs/basic/grammar.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/basic/grammar.md b/docs/basic/grammar.md
index b1ebde1..b0dea02 100644
--- a/docs/basic/grammar.md
+++ b/docs/basic/grammar.md
@@ -485,7 +485,7 @@ var msg = '数字' + n + '是' + (n % 2 === 0 ? '偶数' : '奇数');
 
 ### while 循环
 
-`While`语句包括一个循环条件和一段代码块，只要条件为真，就不断循环执行代码块。
+`while`语句包括一个循环条件和一段代码块，只要条件为真，就不断循环执行代码块。
 
 ```javascript
 while (条件)

From eeb6d159235230468c5e05053fb630406d8bb1f5 Mon Sep 17 00:00:00 2001
From: Hencky <40154205+Hencky@users.noreply.github.com>
Date: Wed, 28 Dec 2022 22:43:11 +0800
Subject: [PATCH 09/38] =?UTF-8?q?fix:=20=E8=BF=90=E7=AE=97=E7=AC=A6/?=
 =?UTF-8?q?=E6=AF=94=E8=BE=83=E8=BF=90=E7=AE=97=E7=AC=A6=20=E6=96=87?=
 =?UTF-8?q?=E6=A1=88=E9=94=99=E8=AF=AF=20(#254)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/operators/comparison.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/operators/comparison.md b/docs/operators/comparison.md
index 3f34eca..1355039 100644
--- a/docs/operators/comparison.md
+++ b/docs/operators/comparison.md
@@ -99,7 +99,7 @@ x > '11' // true
 
 x.valueOf = function () { return '1' };
 x > '11' // false
-// 等同于 [2].valueOf() > '11'
+// 等同于 (function () { return '1' })() > '11'
 // 即 '1' > '11'
 ```
 
@@ -115,7 +115,7 @@ x > '11' // false
 // 即 '2' > '11'
 
 { x: 2 } >= { x: 1 } // true
-// 等同于 { x: 2 }.valueOf().toString() >= { x: 1 }.valueOf().toString()
+// 等同于 ({ x: 2 }).valueOf().toString() >= ({ x: 1 }).valueOf().toString()
 // 即 '[object Object]' >= '[object Object]'
 ```
 

From 2e3f11bdb95836fbff1c897995e0b06b4d3aab30 Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Thu, 2 Feb 2023 17:43:53 +0800
Subject: [PATCH 10/38] docs(operator/comparison): fix text

---
 docs/operators/comparison.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/operators/comparison.md b/docs/operators/comparison.md
index 1355039..002254a 100644
--- a/docs/operators/comparison.md
+++ b/docs/operators/comparison.md
@@ -114,7 +114,7 @@ x > '11' // false
 // 等同于 [2].valueOf().toString() > [11].valueOf().toString()
 // 即 '2' > '11'
 
-{ x: 2 } >= { x: 1 } // true
+({ x: 2 }) >= ({ x: 1 }) // true
 // 等同于 ({ x: 2 }).valueOf().toString() >= ({ x: 1 }).valueOf().toString()
 // 即 '[object Object]' >= '[object Object]'
 ```

From 6dc6fb5e4a2a2bf2c67fed65abe6099d276d57da Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=AD=9F=E7=A5=A5=5F=E6=88=90=E9=83=BD?=
 <1334196450@qq.com>
Date: Sat, 4 Feb 2023 10:34:02 +0800
Subject: [PATCH 11/38] Update cookie.md (#255)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

cookie中domain的值中是不能加*号的
---
 docs/bom/cookie.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/bom/cookie.md b/docs/bom/cookie.md
index 80c542c..a6b49a6 100644
--- a/docs/bom/cookie.md
+++ b/docs/bom/cookie.md
@@ -352,7 +352,7 @@ document.cookie = "foo=bar; expires=Fri, 31 Dec 2020 23:59:59 GMT";
 document.cookie = 'fontSize=14; '
   + 'expires=' + someDate.toGMTString() + '; '
   + 'path=/subdirectory; '
-  + 'domain=*.example.com';
+  + 'domain=.example.com';
 ```
 
 Cookie 的属性一旦设置完成，就没有办法读取这些属性的值。

From 133c2d45e787f0e7425a0e44f2c6c469d08c839a Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Sat, 4 Feb 2023 10:39:47 +0800
Subject: [PATCH 12/38] docs(bom/cookie): edit set-cookie's domain property

---
 docs/bom/cookie.md | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/docs/bom/cookie.md b/docs/bom/cookie.md
index a6b49a6..e0ae045 100644
--- a/docs/bom/cookie.md
+++ b/docs/bom/cookie.md
@@ -342,7 +342,7 @@ document.cookie = "foo=bar; expires=Fri, 31 Dec 2020 23:59:59 GMT";
 各个属性的写入注意点如下。
 
 - `path`属性必须为绝对路径，默认为当前路径。
-- `domain`属性值必须是当前发送 Cookie 的域名的一部分。比如，当前域名是`example.com`，就不能将其设为`foo.com`。该属性默认为当前的一级域名（不含二级域名）。
+- `domain`属性值必须是当前发送 Cookie 的域名的一部分。比如，当前域名是`example.com`，就不能将其设为`foo.com`。该属性默认为当前的一级域名（不含二级域名）。如果显式设置该属性，则该域名的任意子域名也可以读取 Cookie。
 - `max-age`属性的值为秒数。
 - `expires`属性的值为 UTC 格式，可以使用`Date.prototype.toUTCString()`进行日期格式转换。
 
@@ -352,9 +352,11 @@ document.cookie = "foo=bar; expires=Fri, 31 Dec 2020 23:59:59 GMT";
 document.cookie = 'fontSize=14; '
   + 'expires=' + someDate.toGMTString() + '; '
   + 'path=/subdirectory; '
-  + 'domain=.example.com';
+  + 'domain=example.com';
 ```
 
+注意，上面的`domain`属性，以前的写法是`.example.com`，表示子域名也可以读取该 Cookie，新的写法可以省略前面的点。
+
 Cookie 的属性一旦设置完成，就没有办法读取这些属性的值。
 
 删除一个现存 Cookie 的唯一方法，是设置它的`expires`属性为一个过去的日期。

From 482a5170651b5efc1f5d9e408cb4cc138056d082 Mon Sep 17 00:00:00 2001
From: fw_qaq <fwqaaq@gmail.com>
Date: Sun, 12 Feb 2023 23:13:20 +0800
Subject: [PATCH 13/38] fix translation about cross-origin (#256)

---
 docs/bom/cors.md | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/docs/bom/cors.md b/docs/bom/cors.md
index 23dfac9..566e1f0 100644
--- a/docs/bom/cors.md
+++ b/docs/bom/cors.md
@@ -1,12 +1,12 @@
 # CORS 通信
 
-CORS 是一个 W3C 标准，全称是“跨域资源共享”（Cross-origin resource sharing）。它允许浏览器向跨域的服务器，发出`XMLHttpRequest`请求，从而克服了 AJAX 只能同源使用的限制。
+CORS 是一个 W3C 标准，全称是“跨源资源共享”（Cross-origin resource sharing），或者通俗地称为“跨域资源共享”。它允许浏览器向跨源的服务器，发出`XMLHttpRequest`请求，从而克服了 AJAX 只能同源使用的限制。
 
 ## 简介
 
 CORS 需要浏览器和服务器同时支持。目前，所有浏览器都支持该功能。
 
-整个 CORS 通信过程，都是浏览器自动完成，不需要用户参与。对于开发者来说，CORS 通信与普通的 AJAX 通信没有差别，代码完全一样。浏览器一旦发现 AJAX 请求跨域，就会自动添加一些附加的头信息，有时还会多出一次附加的请求，但用户不会有感知。因此，实现 CORS 通信的关键是服务器。只要服务器实现了 CORS 接口，就可以跨域通信。
+整个 CORS 通信过程，都是浏览器自动完成，不需要用户参与。对于开发者来说，CORS 通信与普通的 AJAX 通信没有差别，代码完全一样。浏览器一旦发现 AJAX 请求跨源，就会自动添加一些附加的头信息，有时还会多出一次附加的请求，但用户不会有感知。因此，实现 CORS 通信的关键是服务器。只要服务器实现了 CORS 接口，就可以跨源通信。
 
 ## 两种请求
 
@@ -30,7 +30,7 @@ CORS 请求分成两类：简单请求（simple request）和非简单请求（n
 
 凡是不同时满足上面两个条件，就属于非简单请求。一句话，简单请求就是简单的 HTTP 方法与简单的 HTTP 头信息的结合。
 
-这样划分的原因是，表单在历史上一直可以跨域发出请求。简单请求就是表单请求，浏览器沿袭了传统的处理方式，不把行为复杂化，否则开发者可能转而使用表单，规避 CORS 的限制。对于非简单请求，浏览器会采用新的处理方式。
+这样划分的原因是，表单在历史上一直可以跨源发出请求。简单请求就是表单请求，浏览器沿袭了传统的处理方式，不把行为复杂化，否则开发者可能转而使用表单，规避 CORS 的限制。对于非简单请求，浏览器会采用新的处理方式。
 
 ## 简单请求
 
@@ -38,7 +38,7 @@ CORS 请求分成两类：简单请求（simple request）和非简单请求（n
 
 对于简单请求，浏览器直接发出 CORS 请求。具体来说，就是在头信息之中，增加一个`Origin`字段。
 
-下面是一个例子，浏览器发现这次跨域 AJAX 请求是简单请求，就自动在头信息之中，添加一个`Origin`字段。
+下面是一个例子，浏览器发现这次跨源 AJAX 请求是简单请求，就自动在头信息之中，添加一个`Origin`字段。
 
 ```http
 GET /cors HTTP/1.1
@@ -99,7 +99,7 @@ xhr.withCredentials = true;
 xhr.withCredentials = false;
 ```
 
-需要注意的是，如果服务器要求浏览器发送 Cookie，`Access-Control-Allow-Origin`就不能设为星号，必须指定明确的、与请求网页一致的域名。同时，Cookie 依然遵循同源政策，只有用服务器域名设置的 Cookie 才会上传，其他域名的 Cookie 并不会上传，且（跨域）原网页代码中的`document.cookie`也无法读取服务器域名下的 Cookie。
+需要注意的是，如果服务器要求浏览器发送 Cookie，`Access-Control-Allow-Origin`就不能设为星号，必须指定明确的、与请求网页一致的域名。同时，Cookie 依然遵循同源政策，只有用服务器域名设置的 Cookie 才会上传，其他域名的 Cookie 并不会上传，且（跨源）原网页代码中的`document.cookie`也无法读取服务器域名下的 Cookie。
 
 ## 非简单请求
 
@@ -107,7 +107,7 @@ xhr.withCredentials = false;
 
 非简单请求是那种对服务器提出特殊要求的请求，比如请求方法是`PUT`或`DELETE`，或者`Content-Type`字段的类型是`application/json`。
 
-非简单请求的 CORS 请求，会在正式通信之前，增加一次 HTTP 查询请求，称为“预检”请求（preflight）。浏览器先询问服务器，当前网页所在的域名是否在服务器的许可名单之中，以及可以使用哪些 HTTP 方法和头信息字段。只有得到肯定答复，浏览器才会发出正式的`XMLHttpRequest`请求，否则就报错。这是为了防止这些新增的请求，对传统的没有 CORS 支持的服务器形成压力，给服务器一个提前拒绝的机会，这样可以防止服务器收到大量`DELETE`和`PUT`请求，这些传统的表单不可能跨域发出的请求。
+非简单请求的 CORS 请求，会在正式通信之前，增加一次 HTTP 查询请求，称为“预检”请求（preflight）。浏览器先询问服务器，当前网页所在的域名是否在服务器的许可名单之中，以及可以使用哪些 HTTP 方法和头信息字段。只有得到肯定答复，浏览器才会发出正式的`XMLHttpRequest`请求，否则就报错。这是为了防止这些新增的请求，对传统的没有 CORS 支持的服务器形成压力，给服务器一个提前拒绝的机会，这样可以防止服务器收到大量`DELETE`和`PUT`请求，这些传统的表单不可能跨源发出的请求。
 
 下面是一段浏览器的 JavaScript 脚本。
 
@@ -199,7 +199,7 @@ Access-Control-Max-Age: 1728000
 
 **（1）`Access-Control-Allow-Methods`**
 
-该字段必需，它的值是逗号分隔的一个字符串，表明服务器支持的所有跨域请求的方法。注意，返回的是所有支持的方法，而不单是浏览器请求的那个方法。这是为了避免多次“预检”请求。
+该字段必需，它的值是逗号分隔的一个字符串，表明服务器支持的所有跨源请求的方法。注意，返回的是所有支持的方法，而不单是浏览器请求的那个方法。这是为了避免多次“预检”请求。
 
 **（2）`Access-Control-Allow-Headers`**
 

From 0887afc35d3ada0e8b4e8307ee4225c99815622a Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Sun, 23 Jul 2023 14:29:52 +0800
Subject: [PATCH 14/38] docs(stdlib/JSON): add JSON.parse(JSON.stringify(obj))

---
 docs/stdlib/json.md | 9 +++++++++
 package.json        | 2 +-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/docs/stdlib/json.md b/docs/stdlib/json.md
index dfe1b76..c395d46 100644
--- a/docs/stdlib/json.md
+++ b/docs/stdlib/json.md
@@ -395,6 +395,15 @@ JSON.parse('{"a": 1, "b": 2}', f)
 
 上面代码中，`JSON.parse()`的第二个参数是一个函数，如果键名是`a`，该函数会将键值加上10。
 
+`JSON.parse()`和`JSON.stringify()`可以结合使用，像下面这样写，实现对象的深拷贝。
+
+```javascript
+JSON.parse(JSON.stringify(obj))
+```
+
+上面这种写法，可以深度克隆一个对象，但是对象内部不能有 JSON
+不允许的数据类型，比如函数、正则对象、日期对象等。
+
 ## 参考链接
 
 - MDN, [Using native JSON](https://developer.mozilla.org/en-US/docs/Using_native_JSON)
diff --git a/package.json b/package.json
index b67124a..f9e429a 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
   },
   "homepage": "https://github.com/wangdoc/javascript-tutorial",
   "dependencies": {
-    "gh-pages": "^3.2.3",
+    "gh-pages": "5.x",
     "husky": "^4.3.8",
     "loppo": "^0.6.24",
     "loppo-theme-wangdoc": "^0.6.1"

From 9f7eb468eea0fbb96de409b1b04dccfdd1afdc67 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=BE=BE=E5=B8=85?=
 <21106848+sdshaoda@users.noreply.github.com>
Date: Thu, 10 Aug 2023 17:07:57 +0800
Subject: [PATCH 15/38] docs(types/general): add ES6 BigInt type (#260)

---
 docs/types/general.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/types/general.md b/docs/types/general.md
index 8454b44..6d512ef 100644
--- a/docs/types/general.md
+++ b/docs/types/general.md
@@ -2,7 +2,7 @@
 
 ## 简介
 
-JavaScript 语言的每一个值，都属于某一种数据类型。JavaScript 的数据类型，共有六种。（ES6 又新增了第七种 Symbol 类型的值，本教程不涉及。）
+JavaScript 语言的每一个值，都属于某一种数据类型。JavaScript 的数据类型，共有六种。（ES6 又新增了 Symbol 和 BigInt 数据类型，本教程不涉及。）
 
 - 数值（number）：整数和小数（比如`1`和`3.14`）。
 - 字符串（string）：文本（比如`Hello World`）。

From f05cc4a83f1ae5ba1369f0120b8d9df4384fdb23 Mon Sep 17 00:00:00 2001
From: thinkasany <117748716+thinkasany@users.noreply.github.com>
Date: Thu, 17 Aug 2023 11:53:52 +0800
Subject: [PATCH 16/38] docs(general): use '===' replace '==' (#261)

---
 docs/async/general.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/async/general.md b/docs/async/general.md
index a4c9747..a745bfe 100644
--- a/docs/async/general.md
+++ b/docs/async/general.md
@@ -271,7 +271,7 @@ function launcher() {
       running--;
       if(items.length > 0) {
         launcher();
-      } else if(running == 0) {
+      } else if(running === 0) {
         final(results);
       }
     });

From 4f58c96e9c43936ec2489f392d8c033fb1382881 Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Sat, 30 Dec 2023 14:47:56 +0800
Subject: [PATCH 17/38] docs(stdlib/regex): fixed #263

---
 docs/stdlib/regexp.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/stdlib/regexp.md b/docs/stdlib/regexp.md
index cc0f002..5a1d884 100644
--- a/docs/stdlib/regexp.md
+++ b/docs/stdlib/regexp.md
@@ -150,7 +150,7 @@ r2.exec(s) // null
 
 上面代码中，正则对象`r1`匹配成功，返回一个数组，成员是匹配结果；正则对象`r2`匹配失败，返回`null`。
 
-如果正则表示式包含圆括号（即含有“组匹配”），则返回的数组会包括多个成员。第一个成员是整个匹配成功的结果，后面的成员就是圆括号对应的匹配成功的组。也就是说，第二个成员对应第一个括号，第三个成员对应第二个括号，以此类推。整个数组的`length`属性等于组匹配的数量再加1。
+如果正则表达式包含圆括号（即含有“组匹配”），则返回的数组会包括多个成员。第一个成员是整个匹配成功的结果，后面的成员就是圆括号对应的匹配成功的组。也就是说，第二个成员对应第一个括号，第三个成员对应第二个括号，以此类推。整个数组的`length`属性等于组匹配的数量再加1。
 
 ```javascript
 var s = '_x_x';

From 35bbedb38227416be049585c3c5bab0753fdf913 Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Wed, 3 Jan 2024 08:40:54 +0800
Subject: [PATCH 18/38] docs(oop/strict): fixed #265

---
 docs/oop/strict.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/oop/strict.md b/docs/oop/strict.md
index 3dffbe6..341f757 100644
--- a/docs/oop/strict.md
+++ b/docs/oop/strict.md
@@ -12,7 +12,7 @@
 
 - 明确禁止一些不合理、不严谨的语法，减少 JavaScript 语言的一些怪异行为。
 - 增加更多报错的场合，消除代码运行的一些不安全之处，保证代码运行的安全。
-- 提高编译器效率，增加运行速度。
+- 提高编译器效率，提升运行速度。
 - 为未来新版本的 JavaScript 语法做好铺垫。
 
 总之，严格模式体现了 JavaScript 更合理、更安全、更严谨的发展方向。

From 1868d0a647596d4f2abaf2ebb6489eeebc6689b2 Mon Sep 17 00:00:00 2001
From: Enoch Gao <enochgao@qq.com>
Date: Fri, 5 Jan 2024 19:33:02 +0800
Subject: [PATCH 19/38] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8DscrollHeight?=
 =?UTF-8?q?=E6=B3=A8=E9=87=8A=E9=94=99=E8=AF=AF=20(#266)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/dom/element.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/dom/element.md b/docs/dom/element.md
index 2b5ea6d..6a73887 100644
--- a/docs/dom/element.md
+++ b/docs/dom/element.md
@@ -371,8 +371,8 @@ document.body.scrollHeight
 
 ```javascript
 // HTML 代码如下
-// <div id="myDiv" style="height: 200px; overflow: hidden;">...<div>
-document.getElementById('myDiv').scrollHeight // 356
+// <div id="myDiv" style="height: 200px; overflow: hidden;">...</div>
+document.getElementById('myDiv').scrollHeight // 200
 ```
 
 上面代码中，即使`myDiv`元素的 CSS 高度只有200像素，且溢出部分不可见，但是`scrollHeight`仍然会返回该元素的原始高度。

From d9420c305423feb7f1ae8dd70fd4fd95ab7b76e1 Mon Sep 17 00:00:00 2001
From: Enoch Gao <enochgao@qq.com>
Date: Tue, 9 Jan 2024 09:34:09 +0800
Subject: [PATCH 20/38] =?UTF-8?q?fix:=20=E5=AF=B9=E9=BD=903.1observe()?=
 =?UTF-8?q?=E6=A1=88=E4=BE=8B=E4=BB=A3=E7=A0=81=20(#267)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/dom/mutationobserver.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/dom/mutationobserver.md b/docs/dom/mutationobserver.md
index ace5853..0715565 100644
--- a/docs/dom/mutationobserver.md
+++ b/docs/dom/mutationobserver.md
@@ -44,7 +44,7 @@ var observer = new MutationObserver(function (mutations, observer) {
 ```javascript
 var article = document.querySelector('article');
 
-var  options = {
+var options = {
   'childList': true,
   'attributes':true
 } ;

From d77ebe841af28628c8d3c85d967b89e225ce05b5 Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Sat, 3 Feb 2024 12:53:55 +0800
Subject: [PATCH 21/38] docs(bom/same-origin): fix error

---
 docs/bom/same-origin.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/bom/same-origin.md b/docs/bom/same-origin.md
index 50577ce..4a11a0b 100644
--- a/docs/bom/same-origin.md
+++ b/docs/bom/same-origin.md
@@ -194,7 +194,7 @@ window.addEventListener('message', function (e) {
 `message`事件的参数是事件对象`event`，提供以下三个属性。
 
 > - `event.source`：发送消息的窗口
-> - `event.origin`: 消息发向的网址
+> - `event.origin`: 消息发送者的源（origin），即协议、域名、端口。
 > - `event.data`: 消息内容
 
 下面的例子是，子窗口通过`event.source`属性引用父窗口，然后发送消息。
@@ -208,7 +208,7 @@ function receiveMessage(event) {
 
 上面代码有几个地方需要注意。首先，`receiveMessage`函数里面没有过滤信息的来源，任意网址发来的信息都会被处理。其次，`postMessage`方法中指定的目标窗口的网址是一个星号，表示该信息可以向任意网址发送。通常来说，这两种做法是不推荐的，因为不够安全，可能会被恶意利用。
 
-`event.origin`属性可以过滤不是发给本窗口的消息。
+`event.origin`属性可以过滤非许可地址发来的消息。
 
 ```javascript
 window.addEventListener('message', receiveMessage);

From a13288616e6f8409d9f1575db3707b2b524793d5 Mon Sep 17 00:00:00 2001
From: Enoch Gao <enochgao@qq.com>
Date: Sun, 4 Feb 2024 19:05:08 +0800
Subject: [PATCH 22/38] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E6=96=87?=
 =?UTF-8?q?=E6=A1=A3=E5=AD=97=E7=AC=A6=E4=B8=B2=E9=94=99=E8=AF=AF=20(#268)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/stdlib/object.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/stdlib/object.md b/docs/stdlib/object.md
index 51ba1e6..24b44ca 100644
--- a/docs/stdlib/object.md
+++ b/docs/stdlib/object.md
@@ -308,7 +308,7 @@ var obj = {};
 obj.toString() // "[object Object]"
 ```
 
-上面代码调用空对象的`toString`方法，结果返回一个字符串`object Object`，其中第二个`Object`表示该值的构造函数。这是一个十分有用的判断数据类型的方法。
+上面代码调用空对象的`toString`方法，结果返回一个字符串`[object Object]`，其中第二个`Object`表示该值的构造函数。这是一个十分有用的判断数据类型的方法。
 
 由于实例对象可能会自定义`toString`方法，覆盖掉`Object.prototype.toString`方法，所以为了得到类型字符串，最好直接使用`Object.prototype.toString`方法。通过函数的`call`方法，可以在任意值上调用这个方法，帮助我们判断这个值的类型。
 

From 3a7a19ac749d9e7a08f88d4566c01c9c9c31e269 Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Sat, 24 Feb 2024 23:36:43 +0800
Subject: [PATCH 23/38] docs(stdlib/date): fixed #269

---
 docs/stdlib/date.md | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/docs/stdlib/date.md b/docs/stdlib/date.md
index a44b2c8..d0475da 100644
--- a/docs/stdlib/date.md
+++ b/docs/stdlib/date.md
@@ -317,15 +317,15 @@ d.toTimeString() // "00:00:00 GMT+0800 (CST)"
 var d = new Date(2013, 0, 1);
 
 d.toLocaleString()
-// 中文版浏览器为"2013年1月1日 上午12:00:00"
+// 中文版浏览器为"2013/1/1 00:00:00"
 // 英文版浏览器为"1/1/2013 12:00:00 AM"
 
 d.toLocaleDateString()
-// 中文版浏览器为"2013年1月1日"
+// 中文版浏览器为"2013/1/1"
 // 英文版浏览器为"1/1/2013"
 
 d.toLocaleTimeString()
-// 中文版浏览器为"上午12:00:00"
+// 中文版浏览器为"00:00:00"
 // 英文版浏览器为"12:00:00 AM"
 ```
 
@@ -343,13 +343,13 @@ dateObj.toLocaleTimeString([locales[, options]])
 var d = new Date(2013, 0, 1);
 
 d.toLocaleString('en-US') // "1/1/2013, 12:00:00 AM"
-d.toLocaleString('zh-CN') // "2013/1/1 上午12:00:00"
+d.toLocaleString('zh-CN') // "2013/1/1 00:00:00"
 
 d.toLocaleDateString('en-US') // "1/1/2013"
 d.toLocaleDateString('zh-CN') // "2013/1/1"
 
 d.toLocaleTimeString('en-US') // "12:00:00 AM"
-d.toLocaleTimeString('zh-CN') // "上午12:00:00"
+d.toLocaleTimeString('zh-CN') // "00:00:00"
 ```
 
 `options`配置对象有以下属性。

From 7070f24255dc5c093652368698b409e04e6380ae Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Fri, 19 Apr 2024 22:01:55 +0800
Subject: [PATCH 24/38] docs(types/number): fixed #270

---
 docs/types/number.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/types/number.md b/docs/types/number.md
index b61dc6a..bb9c1b0 100644
--- a/docs/types/number.md
+++ b/docs/types/number.md
@@ -43,7 +43,7 @@ JavaScript 内部，所有数字都是以64位浮点数形式储存，即使整
 
 上面公式是正常情况下（指数部分在0到2047之间），一个数在 JavaScript 内部实际的表示形式。
 
-精度最多只能到53个二进制位，这意味着，绝对值小于2的53次方的整数，即-2<sup>53</sup>到2<sup>53</sup>，都可以精确表示。
+精度最多只能到53个二进制位，这意味着，绝对值小于2的53次方的整数，即-2<sup>53</sup> + 1 到 2<sup>53</sup> - 1，都可以精确表示。
 
 ```javascript
 Math.pow(2, 53)

From 83aea13cd3626db7ca14f65e42224b5cca3cfa02 Mon Sep 17 00:00:00 2001
From: cogic <72649343+cogic@users.noreply.github.com>
Date: Mon, 22 Apr 2024 23:25:03 +0800
Subject: [PATCH 25/38] docs(dom): fix text (#271)

---
 docs/dom/document.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/dom/document.md b/docs/dom/document.md
index 3eb1d02..c3be770 100644
--- a/docs/dom/document.md
+++ b/docs/dom/document.md
@@ -363,7 +363,7 @@ document.replaceChild(
 );
 ```
 
-上面代码中，第一步生成一个新的 HTML 文档`doc`，然后用它的根元素`document.documentElement`替换掉`document.documentElement`。这会使得当前文档的内容全部消失，变成`hello world`。
+上面代码中，第一步生成一个新的 HTML 文档`doc`，然后用它的根元素`doc.documentElement`替换掉`document.documentElement`。这会使得当前文档的内容全部消失，变成`hello world`。
 
 ## 方法
 
@@ -716,7 +716,7 @@ var element  = document.getElementById('ul');
 element.appendChild(docfrag);
 ```
 
-上面代码中，文档片断`docfrag`包含四个`<li>`节点，这些子节点被一次性插入了当前文档。
+上面代码中，文档片段`docfrag`包含四个`<li>`节点，这些子节点被一次性插入了当前文档。
 
 ### document.createEvent()
 

From 2092d3b237de79db450718dc985222642b91bee2 Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Wed, 24 Apr 2024 16:59:12 +0800
Subject: [PATCH 26/38] docs(dom/css): fixed #272

---
 docs/dom/css.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/dom/css.md b/docs/dom/css.md
index 5a1d39a..b8ac695 100644
--- a/docs/dom/css.md
+++ b/docs/dom/css.md
@@ -292,7 +292,7 @@ CSS.supports('display: table-cell;') // false
 
 行内样式（inline style）具有最高的优先级，改变行内样式，通常会立即反映出来。但是，网页元素最终的样式是综合各种规则计算出来的。因此，如果想得到元素实际的样式，只读取行内样式是不够的，需要得到浏览器最终计算出来的样式规则。
 
-`window.getComputedStyle`方法，就用来返回浏览器计算后得到的最终规则。它接受一个节点对象作为参数，返回一个 CSSStyleDeclaration  实例，包含了指定节点的最终样式信息。所谓“最终样式信息”，指的是各种 CSS 规则叠加后的结果。
+`window.getComputedStyle()`方法，就用来返回浏览器计算后得到的最终规则。它接受一个节点对象作为参数，返回一个 CSSStyleDeclaration 实例，包含了指定节点的最终样式信息。所谓“最终样式信息”，指的是各种 CSS 规则叠加后的结果。
 
 ```javascript
 var div = document.querySelector('div');
@@ -328,7 +328,7 @@ var height = styleObj.getPropertyValue('height');
 - CSSStyleDeclaration 实例返回的 CSS 值都是绝对单位。比如，长度都是像素单位（返回值包括`px`后缀），颜色是`rgb(#, #, #)`或`rgba(#, #, #, #)`格式。
 - CSS 规则的简写形式无效。比如，想读取`margin`属性的值，不能直接读，只能读`marginLeft`、`marginTop`等属性；再比如，`font`属性也是不能直接读的，只能读`font-size`等单个属性。
 - 如果读取 CSS 原始的属性名，要用方括号运算符，比如`styleObj['z-index']`；如果读取骆驼拼写法的 CSS 属性名，可以直接读取`styleObj.zIndex`。
-- 该方法返回的 CSSStyleDeclaration 实例的`cssText`属性无效，返回`undefined`。
+- 该方法返回的 CSSStyleDeclaration 实例的`cssText`属性总是返回空字符串。
 
 ## CSS 伪元素
 

From eefffcf3ce979fe6a0cd9c94ad84425a48022b8e Mon Sep 17 00:00:00 2001
From: cogic <72649343+cogic@users.noreply.github.com>
Date: Thu, 25 Apr 2024 15:02:47 +0800
Subject: [PATCH 27/38] docs(dom/css): fix text (#273)

---
 docs/dom/css.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/dom/css.md b/docs/dom/css.md
index b8ac695..b4f1a2d 100644
--- a/docs/dom/css.md
+++ b/docs/dom/css.md
@@ -401,9 +401,9 @@ myStyleSheet instanceof StyleSheet // true
 
 注意，`disabled`属性只能在 JavaScript 脚本中设置，不能在 HTML 语句中设置。
 
-**（2）Stylesheet.href**
+**（2）StyleSheet.href**
 
-`Stylesheet.href`返回样式表的网址。对于内嵌样式表，该属性返回`null`。该属性只读。
+`StyleSheet.href`返回样式表的网址。对于内嵌样式表，该属性返回`null`。该属性只读。
 
 ```javascript
 document.styleSheets[0].href

From 2f55be82dc7f810ca220c44b02606656868c4d39 Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Sat, 4 May 2024 12:03:27 +0800
Subject: [PATCH 28/38] docs(dom/document): fixed #274

---
 docs/dom/document.md | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/docs/dom/document.md b/docs/dom/document.md
index c3be770..7af7f3a 100644
--- a/docs/dom/document.md
+++ b/docs/dom/document.md
@@ -69,7 +69,10 @@ document.scrollingElement.scrollTop = 0;
 `document.fullscreenElement`属性返回当前以全屏状态展示的 DOM 元素。如果不是全屏状态，该属性返回`null`。
 
 ```javascript
-if (document.fullscreenElement.nodeName == 'VIDEO') {
+if (
+  document.fullscreenElement && 
+  document.fullscreenElement.nodeName == 'VIDEO'
+) {
   console.log('全屏播放视频');
 }
 ```

From 370bb5f9ea17a168fdcc9dc6da230e07e5584aed Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Sun, 9 Jun 2024 16:40:57 +0800
Subject: [PATCH 29/38] refactor: update dependencies

---
 package.json | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/package.json b/package.json
index f9e429a..6f29bac 100644
--- a/package.json
+++ b/package.json
@@ -14,11 +14,6 @@
     "server": "loppo server",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
-  "husky": {
-    "hooks": {
-      "pre-push": "npm update"
-    }
-  },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/wangdoc/javascript-tutorial.git"
@@ -35,9 +30,8 @@
   },
   "homepage": "https://github.com/wangdoc/javascript-tutorial",
   "dependencies": {
-    "gh-pages": "5.x",
-    "husky": "^4.3.8",
+    "gh-pages": "6.x",
     "loppo": "^0.6.24",
-    "loppo-theme-wangdoc": "^0.6.1"
+    "loppo-theme-wangdoc": "^0.7.1"
   }
 }

From 56a50937db811cbfda8c3a4725e59cc6a5e4f782 Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Sun, 9 Jun 2024 16:45:42 +0800
Subject: [PATCH 30/38] refactor: update github action script

---
 .github/workflows/wangdoc.yml | 27 +++++++++++++--------------
 1 file changed, 13 insertions(+), 14 deletions(-)

diff --git a/.github/workflows/wangdoc.yml b/.github/workflows/wangdoc.yml
index 80f8bfe..c3e5cbe 100644
--- a/.github/workflows/wangdoc.yml
+++ b/.github/workflows/wangdoc.yml
@@ -10,28 +10,27 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           persist-credentials: false
       - name: Setup Node.js
-        uses: actions/setup-node@main
+        uses: actions/setup-node@v4
         with:
-          node-version: '14'
+          node-version: 'latest'
       - name: Install dependencies
         run: npm install
       - name: Build pages
         run: npm run build
       - name: Deploy to website
-        uses: JamesIves/github-pages-deploy-action@3.7.1
+        uses: JamesIves/github-pages-deploy-action@v4
         with:
-          GIT_CONFIG_NAME: wangdoc-bot
-          GIT_CONFIG_EMAIL: yifeng.ruan@gmail.com
-          REPOSITORY_NAME: wangdoc/website
-          ACCESS_TOKEN: ${{ secrets.WANGDOC_BOT_TOKEN }}
-          BASE_BRANCH: master
-          BRANCH: master # The branch the action should deploy to.
-          FOLDER: dist # The folder the action should deploy.
-          TARGET_FOLDER: dist/javascript
-          CLEAN: true # Automatically remove deleted files from the deploy branch
-          COMMIT_MESSAGE: update from JavaScript tutorial
+          git-config-name: wangdoc-bot
+          git-config-email: yifeng.ruan@gmail.com
+          repository-name: wangdoc/website
+          token: ${{ secrets.WANGDOC_BOT_TOKEN }}
+          branch: master # The branch the action should deploy to.
+          folder: dist # The folder the action should deploy.
+          target-folder: dist/javascript
+          clean: true # Automatically remove deleted files from the deploy branch
+          commit-message: update from JavaScript tutorial
 

From 5aa689b301aae830a6315123334b66763a12f50c Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Mon, 24 Jun 2024 14:04:54 +0800
Subject: [PATCH 31/38] docs(bom/window): fixed #277

---
 docs/bom/window.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/bom/window.md b/docs/bom/window.md
index a012d61..a873fae 100644
--- a/docs/bom/window.md
+++ b/docs/bom/window.md
@@ -579,7 +579,7 @@ var start = null;
 function step(timestamp) {
   if (!start) start = timestamp;
   var progress = timestamp - start;
-  // 元素不断向左移，最大不超过200像素
+  // 元素不断向右移，最大不超过200像素
   element.style.left = Math.min(progress / 10, 200) + 'px';
   // 如果距离第一次执行不超过 2000 毫秒，
   // 就继续执行动画

From 200b44e6d98e73e71595452d72b24a7d201ee50b Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Thu, 4 Jul 2024 19:30:11 +0800
Subject: [PATCH 32/38] docs(oop/this): fixed #279

---
 docs/oop/this.md | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/docs/oop/this.md b/docs/oop/this.md
index 6668047..1913fe3 100644
--- a/docs/oop/this.md
+++ b/docs/oop/this.md
@@ -679,19 +679,19 @@ Array.prototype.slice.apply({length: 1}) // [undefined]
 前面的按钮点击事件的例子，可以改写如下。
 
 ```javascript
-var o = new Object();
+var obj = new Object();
 
-o.f = function () {
-  console.log(this === o);
+var func = function () {
+  console.log(this === obj);
 }
 
-var f = function (){
-  o.f.apply(o);
-  // 或者 o.f.call(o);
+var handler = function (){
+  func.apply(obj);
+  // 或者 f.call(obj);
 };
 
 // jQuery 的写法
-$('#button').on('click', f);
+$('#button').on('click', handler);
 ```
 
 上面代码中，点击按钮以后，控制台将会显示`true`。由于`apply()`方法（或者`call()`方法）不仅绑定函数执行时所在的对象，还会立即执行函数，因此不得不把绑定语句写在一个函数体内。更简洁的写法是采用下面介绍的`bind()`方法。

From 1df4272d579f407add746ecf73ff6a664e500364 Mon Sep 17 00:00:00 2001
From: Linho <linho1219@outlook.com>
Date: Tue, 24 Sep 2024 17:22:49 +0800
Subject: [PATCH 33/38] =?UTF-8?q?=E7=BB=9F=E4=B8=80=E5=BC=95=E5=8F=B7=20(#?=
 =?UTF-8?q?282)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

* 统一引号

* 统一引号
---
 docs/types/null-undefined-boolean.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/types/null-undefined-boolean.md b/docs/types/null-undefined-boolean.md
index 9a76679..129dda3 100644
--- a/docs/types/null-undefined-boolean.md
+++ b/docs/types/null-undefined-boolean.md
@@ -35,7 +35,7 @@ undefined == null
 
 既然含义与用法都差不多，为什么要同时设置两个这样的值，这不是无端增加复杂度，令初学者困扰吗？这与历史原因有关。
 
-1995年 JavaScript 诞生时，最初像 Java 一样，只设置了`null`表示"无"。根据 C 语言的传统，`null`可以自动转为`0`。
+1995年 JavaScript 诞生时，最初像 Java 一样，只设置了`null`表示“无”。根据 C 语言的传统，`null`可以自动转为`0`。
 
 ```javascript
 Number(null) // 0
@@ -46,7 +46,7 @@ Number(null) // 0
 
 但是，JavaScript 的设计者 Brendan Eich，觉得这样做还不够。首先，第一版的 JavaScript 里面，`null`就像在 Java 里一样，被当成一个对象，Brendan Eich 觉得表示“无”的值最好不是对象。其次，那时的 JavaScript 不包括错误处理机制，Brendan Eich 觉得，如果`null`自动转为0，很不容易发现错误。
 
-因此，他又设计了一个`undefined`。区别是这样的：`null`是一个表示“空”的对象，转为数值时为`0`；`undefined`是一个表示"此处无定义"的原始值，转为数值时为`NaN`。
+因此，他又设计了一个`undefined`。区别是这样的：`null`是一个表示“空”的对象，转为数值时为`0`；`undefined`是一个表示“此处无定义”的原始值，转为数值时为`NaN`。
 
 ```javascript
 Number(undefined) // NaN

From 5f4a988c6087dcfd0785f9443d0a8e2db54c9f65 Mon Sep 17 00:00:00 2001
From: Linho <linho1219@outlook.com>
Date: Tue, 24 Sep 2024 22:04:45 +0800
Subject: [PATCH 34/38] =?UTF-8?q?=E8=A1=A5=E5=85=85=20NaN=20=E8=BF=90?=
 =?UTF-8?q?=E7=AE=97=E8=A7=84=E5=88=99=20(#283)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/types/number.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/docs/types/number.md b/docs/types/number.md
index bb9c1b0..53ebfb5 100644
--- a/docs/types/number.md
+++ b/docs/types/number.md
@@ -280,6 +280,12 @@ NaN * 32 // NaN
 NaN / 32 // NaN
 ```
 
+但是，ES6 引入指数运算符（`**`）后，出现了一个例外。
+
+```javascript
+NaN ** 0 // 1
+```
+
 ### Infinity
 
 **（1）含义**

From 79dcc9bc1799e3a432b0251e12ee07a4ef9727d6 Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Wed, 25 Sep 2024 17:08:58 +0800
Subject: [PATCH 35/38] style: force update theme

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 6f29bac..479b7bb 100644
--- a/package.json
+++ b/package.json
@@ -32,6 +32,6 @@
   "dependencies": {
     "gh-pages": "6.x",
     "loppo": "^0.6.24",
-    "loppo-theme-wangdoc": "^0.7.1"
+    "loppo-theme-wangdoc": "^0.7.3"
   }
 }

From 2500a083ca4b38d0db357cebd8effe3090208bf0 Mon Sep 17 00:00:00 2001
From: Enoch Gao <enochgao@qq.com>
Date: Tue, 10 Dec 2024 07:21:34 +0800
Subject: [PATCH 36/38] =?UTF-8?q?fix(docs):=206.2=E6=B3=A8=E9=87=8A?=
 =?UTF-8?q?=E9=94=99=E8=AF=AF=20(#287)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/oop/this.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/oop/this.md b/docs/oop/this.md
index 1913fe3..6792c30 100644
--- a/docs/oop/this.md
+++ b/docs/oop/this.md
@@ -687,7 +687,7 @@ var func = function () {
 
 var handler = function (){
   func.apply(obj);
-  // 或者 f.call(obj);
+  // 或者 func.call(obj);
 };
 
 // jQuery 的写法

From e4622c26cc36dea67db450f7af2705aee63c5c4a Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Wed, 25 Dec 2024 10:09:38 +0800
Subject: [PATCH 37/38] docs(oop/strict): fixed typo

---
 docs/oop/strict.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/oop/strict.md b/docs/oop/strict.md
index 341f757..cc339c8 100644
--- a/docs/oop/strict.md
+++ b/docs/oop/strict.md
@@ -108,7 +108,7 @@ function notStrict() {
 ```javascript
 // 对只读属性赋值会报错
 'use strict';
-Object.defineProperty({}, 'a', {
+var obj = Object.defineProperty({}, 'a', {
   value: 37,
   writable: false
 });

From a428ce98018c97fc5880c8b553e9218f1936f14a Mon Sep 17 00:00:00 2001
From: Enoch Gao <enochgao@qq.com>
Date: Tue, 30 Sep 2025 12:52:05 +0800
Subject: [PATCH 38/38] =?UTF-8?q?fix(docs):=20=E4=BF=AE=E5=A4=8D=E5=BC=95?=
 =?UTF-8?q?=E7=94=A8=E7=AB=A0=E8=8A=82=E5=90=8D=E7=A7=B0=E9=94=99=E8=AF=AF?=
 =?UTF-8?q?=EF=BC=8C=E9=81=BF=E5=85=8D=E9=98=85=E8=AF=BB=E6=A8=A1=E7=B3=8A?=
 =?UTF-8?q?=E4=B8=8D=E6=B8=85=20(#291)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/stdlib/object.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/docs/stdlib/object.md b/docs/stdlib/object.md
index 24b44ca..783175c 100644
--- a/docs/stdlib/object.md
+++ b/docs/stdlib/object.md
@@ -56,7 +56,7 @@ obj instanceof Object // true
 
 `instanceof`运算符用来验证，一个对象是否为指定的构造函数的实例。`obj instanceof Object`返回`true`，就表示`obj`对象是`Object`的实例。
 
-如果参数是原始类型的值，`Object`方法将其转为对应的包装对象的实例（参见《原始类型的包装对象》一章）。
+如果参数是原始类型的值，`Object`方法将其转为对应的包装对象的实例（参见《包装对象》一章）。
 
 ```javascript
 var obj = Object(1);
@@ -156,7 +156,7 @@ var obj = {
 Object.getOwnPropertyNames(obj) // ["p1", "p2"]
 ```
 
-对于一般的对象来说，`Object.keys()`和`Object.getOwnPropertyNames()`返回的结果是一样的。只有涉及不可枚举属性时，才会有不一样的结果。`Object.keys`方法只返回可枚举的属性（详见《对象属性的描述对象》一章），`Object.getOwnPropertyNames`方法还返回不可枚举的属性名。
+对于一般的对象来说，`Object.keys()`和`Object.getOwnPropertyNames()`返回的结果是一样的。只有涉及不可枚举属性时，才会有不一样的结果。`Object.keys`方法只返回可枚举的属性（详见《属性描述对象》一章），`Object.getOwnPropertyNames`方法还返回不可枚举的属性名。
 
 ```javascript
 var a = ['Hello', 'World'];
@@ -231,7 +231,7 @@ obj.valueOf() === obj // true
 
 上面代码比较`obj.valueOf()`与`obj`本身，两者是一样的。
 
-`valueOf`方法的主要用途是，JavaScript 自动类型转换时会默认调用这个方法（详见《数据类型转换》一章）。
+`valueOf`方法的主要用途是，JavaScript 自动类型转换时会默认调用这个方法（详见《数据类型的转换》一章）。
 
 ```javascript
 var obj = new Object();