How Can I Retrieve CSS Percentage Values Using jQuery?

Retrieving CSS Percentage Values in jQuery

Consider the following CSS rule:

.largeField {
    width: 65%;
}

Is there a way to programmatically extract the percentage value, rather than the calculated pixel value?

Direct Access to Element's Style

A straightforward approach is to directly access the element's style property:

$('.largeField')[0].style.width

// Returns "65%"

This method assumes you have a reference to the element you wish to inspect.

However, there is a potential caveat to note:

This approach may not work reliably in certain scenarios. For instance, if your stylesheet imports multiple other stylesheets and you are referencing the cssRules parameter, you may encounter null or undefined values.

In such cases, the aforementioned method may prove more reliable for simpler scenarios with straightforward stylesheet declarations.

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