Edited ch07.asciidoc with Atlas code editor

Author: myarbrough

ch07.asciidoc

@@ -1082,7 +1082,7 @@ Let's switch protocols and learn ((("String#padStart", startref="sps7")))((("Str
 
 JavaScript strings ((("Unicode", id="u7")))((("strings", "and Unicode", id="s7au")))are represented using UTF-16 code units.pass:[<span data-type="footnote" id="unicode-encodings">Learn more about <a href="https://mjavascript.com/out/unicode-encodings">UCS-2, UCS-4, UTF-16, and UTF-32</a>.</span>] Each code unit can be used to represent a code point in the `[U+0000, U+FFFF]` range--also known as the ((("BMP (basic multilinual plane)")))BMP, short for Basic Multilingual Plane. You can represent individual code points in the BMP plane using the `'\u3456'` syntax. You could also represent code units in the `[U+0000, U+0255]` range using the `\x00..\xff` notation. For instance, `'\xbb'` represents `'»'`, the `U+00BB` code point, as you can also verify by doing `String.fromCharCode(0xbb)`.
 
-For code points beyond `U+FFFF`, you'd represent them as a surrogate pair. That is to say, two contiguous code units. For instance, the horse emoji (pass:[<code><img src="images/1f40e.png" style="width: 12px" alt="horse emoji" data-emoji-embed="running horse" /></code>]) code point is represented with the `'\ud83d\udc0e'` contiguous code units. In ES6 notation you can also represent code points using the `'\u{1f40e}'` notation (that example is also the horse emoji).
+For code points beyond `U+FFFF`, you'd represent them as a surrogate pair. That is to say, two contiguous code units. For instance, the horse emoji (pass:[<code><img src="images/1f40e.png" class="emoji" alt="horse emoji" data-emoji-embed="running horse" /></code>]) code point is represented with the `'\ud83d\udc0e'` contiguous code units. In ES6 notation you can also represent code points using the `'\u{1f40e}'` notation (that example is also the horse emoji).
 
 Note that the internal representation hasn't changed, so there are still two code units behind that single code point. In fact, `'\u{1f40e}'.length` evaluates to `2`, one for each code unit.
 
@@ -1211,7 +1211,7 @@ Let's look at more Unicode-related methods introduced in ES6.
 
 ==== String#codePointAt
 
-We can use `String#codePointAt` to ((("String#codePointAt", id="scpa7")))get the numeric representation of a code point at a given position in a string. Note that the expected start position is indexed by code unit, not by code point. In the following example we print the code points for each of the three emoji in our demo 'pass:[<code><img src="images/1f40e.png" style="width: 12px" alt="horse" data-emoji-embed="running horse" /><img src="images/1f471.png" style="width: 12px" alt="man" data-emoji-embed="smiling idiot" /><img src="images/2764.png" style="width: 12px" alt="heart" data-emoji-embed="heart" /></code>]' string.
+We can use `String#codePointAt` to ((("String#codePointAt", id="scpa7")))get the numeric representation of a code point at a given position in a string. Note that the expected start position is indexed by code unit, not by code point. In the following example we print the code points for each of the three emoji in our demo 'pass:[<code><img src="images/1f40e.png" class="emoji" alt="horse" data-emoji-embed="running horse" /><img src="images/1f471.png" class="emoji" alt="man" data-emoji-embed="smiling idiot" /><img src="images/2764.png" class="emoji" alt="heart" data-emoji-embed="heart" /></code>]' string.
 
 [source,javascript]
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