HtmlSpecialChars equivalent in Javascript?

Question

Apparently, this is harder to find than I thought it would be. And it even is so simple...

Is there a function equivalent to PHP\'s htmlspecialchars built into Javas

Answer 1

function htmlEscape(str){
    return str.replace(/[&<>'"]/g,x=>'&#'+x.charCodeAt(0)+';')
}

This solution uses the numerical code of the characters, for example < is replaced by <.

Although its performance is slightly worse than the solution using a map, it has the advantages:

• Not dependent on a library or DOM
• Pretty easy to remember (you don't need to memorize the 5 HTML escape characters)
• Little code
• Reasonably fast (it's still faster than 5 chained replace)