feat: add js solution to lc problem: No.1451 (#1024)

Author: Qiu-IT

solution/1400-1499/1451.Rearrange Words in a Sentence/README.md

@@ -174,6 +174,22 @@ function arrangeWords(text: string): string {
 }
 ```
 
+### **JavaScript**
+
+```js
+/**
+ * @param {string} text
+ * @return {string}
+ */
+var arrangeWords = function (text) {
+    let arr = text.split(' ');
+    arr[0] = arr[0].toLocaleLowerCase();
+    arr.sort((a, b) => a.length - b.length);
+    arr[0] = arr[0][0].toLocaleUpperCase() + arr[0].substr(1);
+    return arr.join(' ');
+};
+```
+
 ### **...**
 
 ```

solution/1400-1499/1451.Rearrange Words in a Sentence/README_EN.md

@@ -159,6 +159,22 @@ function arrangeWords(text: string): string {
 }
 ```
 
+### **JavaScript**
+
+```js
+/**
+ * @param {string} text
+ * @return {string}
+ */
+var arrangeWords = function (text) {
+    let arr = text.split(' ');
+    arr[0] = arr[0].toLocaleLowerCase();
+    arr.sort((a, b) => a.length - b.length);
+    arr[0] = arr[0][0].toLocaleUpperCase() + arr[0].substr(1);
+    return arr.join(' ');
+};
+```
+
 ### **...**
 
 ```

solution/1400-1499/1451.Rearrange Words in a Sentence/Solution.js

@@ -0,0 +1,11 @@
+/**
+ * @param {string} text
+ * @return {string}
+ */
+var arrangeWords = function (text) {
+    let arr = text.split(' ');
+    arr[0] = arr[0].toLocaleLowerCase();
+    arr.sort((a, b) => a.length - b.length);
+    arr[0] = arr[0][0].toLocaleUpperCase() + arr[0].substr(1);
+    return arr.join(' ');
+};