Regex for removing whitespace between html tags

Forum|Forum|10 months ago
March 5, 2025
2 replies
604 views

<html>  <div><p> Hi there</p>  </div> </html>

Sample code above has whitespace, which I need to get rid of. I've found various examples used in different code settings and tried plugging them into a CF REReplace() function, but nothing has worked so far.

e.g. something like this in node

var result = html.replace(/>\s+|\s+</g, function(m) {
    return m.trim();
});

Any help greatly appreciated.

Correct answer kazu98296633

var result = html.rereplace("\s*([<|>])\s*", "\1", "all");

K

kazu98296633Correct answer

Participating Frequently

var result = html.rereplace("\s*([<|>])\s*", "\1", "all");

BKBK

Community Expert

Good find, @kazu98296633 . Your suggestion solves a wider problem of which @paul_8809 's is a part. Namely, it removes any spaces before or after the characters "<" and ">" :

<cfscript>	
	html = "<html>  <  div >   <               p > Hi there  < /p >  <  /div > <  /html                         >";
	htmlSpaceless = html.rereplace("\s*([<|>])\s*", "\1", "all");
	writeoutput(htmlSpaceless); 
</cfscript>

BKBK

Community Expert

You could solve it in a simple way, by using reReplaceNocase() twice. The first call replaces ">\s" with ">", the second replaces "\s<" with "<":

<cfscript>	
	html = "<html>  <div><p> Hi there</p>  </div> </html>";
	htmlSpaceless = html.reReplaceNoCase(">\s",">","all").reReplaceNoCase("\s<","<","all");
	writeoutput(htmlSpaceless); 
</cfscript>

P

paul_8809Author

Inspiring

Yes, that is perfect. Thank you so much!

BKBK

Community Expert

My pleasure, @paul_8809 !

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