Random JavaScript utils

utils.js

// Object map
function mapobjIndexed (fn, obj) {
	const curriedMapobjIndexed = obj => Object.keys(obj).reduce((acc, cur) => ({...acc, [cur] : fn(obj[cur], cur, obj) }), {})
	if(arguments.length < 2) return curriedMapobjIndexed;
	return curriedMapobjIndexed(obj);
}

// Prototype version
Object.prototype.map = function (fn) {
	return Object.keys(this).reduce(
		(acc, cur) => ({...acc, [cur] : fn(this[cur], cur, this) }),
		{}
	);
};