Function to get all elements that have an attribute that starts with a given string

getElementsByAttributeName.js

function getElementsByAttributeName(startsWith, type){
	return Array.from(document.querySelectorAll(type || '*')).filter(function(el){
		var ok = false;
		Array.from(el.attributes).forEach( function(attr){
			if(startsWith instanceof RegExp){
				ok = attr.name.match(startsWith);
			} else {
				ok = attr.name.startsWith(startsWith);
			}
		});
		return ok;
	})
}