Remove HTML tags from string

Published on October 19th, 2019

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If you want to remove HTML tags from string for one reason or another, the easiest way will be using regular expressions (regex). Regex in code example below will replace everything inside < and >. This can prevent XSS (cross-site scripting) vulnerability but it is not really flexible (normal content inside < and > will be replaced), so recommended way for doing this in production is using library like DOMPurify.

const cleanHtmlTags = string => {
  return string.replace(/<[^>]*>/g, '')

And expected result when calling function…

cleanHtmlTags(`<p>Normal content<img onload="alert(hey)"></p>`)
// output: Normal content