Fastest method to escape HTML tags as HTML entities?

Question

I\'m writing a Chrome extension that involves doing a lot of the following job: sanitizing strings that might contain HTML tags, by converting

Answer 1

The fastest method is:

function escapeHTML(html) {
    return document.createElement('div').appendChild(document.createTextNode(html)).parentNode.innerHTML;
}

This method is about twice faster than the methods based on 'replace', see http://jsperf.com/htmlencoderegex/35 .

Source: https://stackoverflow.com/a/17546215/698168