CustomStateSet: forEach() method

Baseline 2024

Newly available

Since May 2024, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

The forEach() method of the CustomStateSet interface executes a provided function for each value in the CustomStateSet object.

forEach(callbackFn)
forEach(callbackFn, thisArg)

Function to execute for each element, taking three arguments:

value, key: The current element being processed in the CustomStateSet. As there are no keys in a CustomStateSet, the value is passed for both arguments.
set: The CustomStateSet which forEach() was called upon.

Value to use as this when executing callbackFn.

Undefined.

Specification
HTML Standard # custom-state-pseudo-class

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