JavaScript composition variations

compose-variations.js

function compose (a, b)
{
	return function applyArguments (c)
	{
		return a(b(c));
	}
}

/**
 * @param {Function} a
 * @param {Function} b
 * @returns {*}
 */
function compose (a, b)
{
	return (...args) => a(b(...args));
}

function compose (...functions)
{
	return (...args) => 
	{
		for (var i = functions.length - 1; i > -1; i--) 
		{
			args = [functions[i](...args)];
		}
		return args[0];
	}
}


// Test compose implementations

function add1(a)
{
	return a + a;
}
function mult1(a)
{
	return a * a;
}
function divide1(a)
{
	return a/(a/2);
}

var f = compose(mult1, add1);
//var f = compose(divide1, mult1, add1);