20 lines
554 B
Markdown
20 lines
554 B
Markdown
### escapeHTML
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Escapes a string for use in HTML.
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Use `String.replace()` with a regex that matches the characters that need to be escaped, using a callback function to replace each character instance with its associated escaped character using a dictionary (object).
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```js
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const escapeHTML = str => str.replace(/[&<>'"]/g, 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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})[tag] || tag);
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```
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```js
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escapeHTML('<a href="#">Me & you</a>'); // '<a href="#">Me & you</a>'
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```
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