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martin krause
martin krause

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1 line of code: How to convert html special chars

const htmlSpecialChars = str => str.replace(/[&"'<>]/g, (i) => ({ "&": "&amp;", '"': "&quot;", "'": "&#039;", "<": "&lt;", ">": "&gt;" }[i]));
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Returns a new string where all HTML special characters are converted to HTML entities.


Certain characters have special significance in HTML, and should be represented by HTML entities if they are to preserve their meanings.
Based on PHP: htmlspecialchars


The repository & npm package

You can find the all the utility functions from this series at github.com/martinkr/onelinecode
The library is also published to npm as @onelinecode for your convenience.

The code and the npm package will be updated every time I publish a new article.


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