Question

I have some string with html tags.

var str = '<a href="www.com">text</a>
<script>
//some code etc
</script>
............... etc
';

I need to remove <script>….</script> using regexp with js’s replace() function. Could not figure how to do it.

My efforts were:

/(<script).(</script>)/m 
/<script.*>([\s\S]*)</script>/m
/(<script)*(</script>)/
/<script*</script>/

no success =(

Answer 1

Try…

/<script>[\s\S]*<\/script>/

If this is for arbitrary HTML, consider using DOM manipulation methods instead.

var fauxDocumentFragment = document.createElement("div");

fauxDocumentFragment.innerHTML = str;

var scriptElements = fauxDocumentFragment.getElementsByTagName("script");

while (scriptElements.length) {
    scriptElements[0].parentNode.removeChild(scriptElements[0]);
}

If you’re lucky enough to only have to support the newer browsers, go with…

var fauxDocumentFragment = document.createElement("div");

fauxDocumentFragment.innerHTML = str;

[].forEach(fauxDocumentFragment.querySelectorAll("script"), function(script)
    script.parentNode.removeChild(script);
});