8ee50178f3
Correct: `Array.from()` (it’s a static method) Incorrect: `Array.join()` (doesn’t exist; it’s a prototype method) This patch uses the common `#` syntax to denote `.prototype.`.
25 lines
647 B
Markdown
25 lines
647 B
Markdown
### unescapeHTML
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Unescapes escaped HTML characters.
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Use `String.prototype.replace()` with a regex that matches the characters that need to be unescaped, using a callback function to replace each escaped character instance with its associated unescaped character using a dictionary (object).
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```js
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const unescapeHTML = str =>
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str.replace(
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/&|<|>|'|"/g,
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tag =>
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({
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'&': '&',
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'<': '<',
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'>': '>',
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''': "'",
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'"': '"'
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}[tag] || tag)
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);
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```
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```js
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unescapeHTML('<a href="#">Me & you</a>'); // '<a href="#">Me & you</a>'
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```
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