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Editorial Team
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Asked: 2026-05-23T07:39:39+00:00

I put this on the head section var d = parseInt(document.getElementById(‘test’).style.width); alert(d); But the

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I put this on the head section

var d = parseInt(document.getElementById('test').style.width);
alert(d);

But the output is NaN.

how do you get the value?

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1 Answer

  1. Editorial Team

    UDPATED

    I think the problem is that you’ve put the code in the <head> of your document, which means it’s looking for the test element right away. Unfortunately, the test element hasn’t been created yet, because your browser is still parsing the <head>.

    So, make sure that code is placed after the test element, and use either .offsetWidth or .clientWidth, and it should work fine.

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