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Polyfill for the The find() method. Returns a value in the array, if an element in the array satisfies the provided testing function. Otherwise undefined is returned
CustomEvent constructor for IE 9 and higher where is not supported.
Improve your JS workflow while you still provide support for older browsers.
Polyfill for the The findIndex() method. returns an index in the array, if an element in the array satisfies the provided testing function. Otherwise -1 is returned.