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javascriptcssregexscalecss-transforms
Andi Pavllo
Andi Pavllo

Reputation: 2506

Change "scale" attribute in CSS "transform"

I have the following div

<div style="transform-origin: left top 0px; transform: translate3d(0px, -26px, 0px) scale(1);">

As you can see, transform contains scale(1). What's the best way to change scale value?

Thank you for your help.

Upvotes: 3

Views: 7770

Answers (2)

JSchirrmacher
JSchirrmacher

Reputation: 3364

You could use a regular expression (assumed you have your div DOM element in a variable 'el' and want to change scale to 2):

el.style.transform.replace(/scale\(\d+\)/, 'scale(2)');

Upvotes: 0

kmaork
kmaork

Reputation: 6012

Sure, using javascript. There are many ways to do it, I'd do it using a regex.

function changeScale(newScale){
    var div = document.getElementById('theID');
    var curTrans = div.style.transform;
    var newScaleString = 'scale(' + newScale + ')';
    var regex = /scale\([0-9|\.]*\)/;
    var newTrans = curTrans.replace(regex, newScaleString);
    div.style.transform = newTrans;
}

Or with less lines:

function changeScale(newScale){
    var div = document.getElementById('theID');
    div.style.transform = div.style.transform.replace(/scale\([0-9|\.]*\)/, 'scale(' + newScale + ')');
}

Upvotes: 8

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