Enhancing htmloptionscollection

I recently created a code snippet to enhance the functionality of the HTMLOptionsCollection object:

HTMLOptionsCollection.prototype.contains = HTMLOptionsCollection.prototype.contains ||
    function(otherOption) {
        for (var i = 0; i < this.length; i++) {
            if (this[i].value === otherOption.value) {
                return true;
            }
        }
        return false;
    };

While it works perfectly in Firefox and Opera, I encountered issues in IE9 and Google Chrome where an error "Uncaught ReferenceError: HTMLOptionsCollection is not defined" appears.

Could someone advise me on how to resolve this issue? Am I missing something or is there a different approach I should take?

Answer №1

If you make a mistake, remember not to assume that every browser fully supports the entire DOM. Take Internet Explorer (IE) for instance: There is no prototype visible for HTMLOptionsCollection on MSDN

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