34 lines
825 B
Markdown
34 lines
825 B
Markdown
---
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title: Unescape HTML
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tags: string,browser,regexp
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expertise: beginner
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cover: blog_images/little-tree.jpg
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firstSeen: 2017-12-29T15:09:10+02:00
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lastUpdated: 2020-10-22T20:24:44+03:00
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---
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Unescapes escaped HTML characters.
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- Use `String.prototype.replace()` with a regexp that matches the characters that need to be unescaped.
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- Use the function's callback 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>');
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// '<a href="#">Me & you</a>'
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```
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