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30-seconds-of-code/snippets/unescapeHTML.md
2017-12-29 13:22:58 +00:00

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### unescapeHTML
Unescapes escaped HTML characters.
Use `String.replace()` with a regex that matches the characters that need to be escaped, using a callback function to replace each escaped character instance with its associated unescaped character using a dictionary (object).
```js
const unescapeHTML = str =>
str.replace(
/&|<|>|'|"/g,
tag =>
({
'&': '&',
'&lt;': '<',
'&gt;': '>',
'&#39;': "'",
'&quot;': '"'
}[tag] || tag)
);
```
```js
unescapeHTML('&lt;a href=&quot;#&quot;&gt;Me &amp; you&lt;/a&gt;'); // '<a href="#">Me & you</a>'
```