Hurray; Array subclass with hash destructuring for method callbacks, and a few helpers

hurray.js

class Hurray extends Array {
	forEach(callback){
		super.forEach.call(this, (...args) => callback(Hurray.iterator(...args)));
		return this; // make forEach chainable
	}

	every(callback){ return super.every.call(this, (...args) => callback(Hurray.iterator(...args))) }
	filter(callback){ return super.filter.call(this, (...args) => callback(Hurray.iterator(...args))) }
	find(callback){ return super.find.call(this, (...args) => callback(Hurray.iterator(...args))) }
	findIndex(callback){ return super.findIndex.call(this, (...args) => callback(Hurray.iterator(...args))) }
	map(callback){ return super.map.call(this, (...args) => callback(Hurray.iterator(...args))) }
	some(callback){ return super.some.call(this, (...args) => callback(Hurray.iterator(...args))) }
	reduce(cb){ return super.reduce.call(this, (accu, ...args) => cb(Hurray.iterator(...args, accu))) }
	reduceRight(cb){ return super.reduceRight.call(this, (accu, ...args) => cb(Hurray.iterator(...args, accu))) }
}
Hurray.from = array => new Hurray(...Array.from(array));
Hurray.iterator = function(item, index, array, accumulator){
	const isFirst = index === 0,
	      isLast = index + 1 === array.length,
	      isOdd = index % 2 === 1,
	      isEven = index % 2 === 0;
	return { // pass arguments as hash
		item, index, isFirst, isLast, isOdd, isEven, array, accumulator
	};
};

// ======= EXAMPLE USAGE =========

const dalton = Hurray.from(["joe","william","jack","averell"]);

dalton.forEach(function({ item, index, isFirst, isLast, isOdd, isEven, array }){
	console.log({ item, index, isFirst, isLast, isOdd, isEven, array})
});

dalton.filter(({ isOdd }) => isOdd);

dalton.filter(({ isFirst, isLast }) => isFirst || isLast);