JS Pipe (rxjs-like)

pipe.js

function removeFalsyValues(values) {
	return values.filter(value => Boolean(value));
}

function showValues(values) {
	values.forEach(value => console.log(`Got value: ${value}`));
}

function greaterThanZero(values) {
	return values.filter(value => value > 0);
}

const values = [1, 0, undefined, 43];

/* Without pipe: need to read from right to left */
showValues(greaterThanZero(removeFalsyValues(values)));

/* With pipe: */
pipe(
	removeFalsyValues,
	greaterThanZero,
	showValues
)(values);

function pipe(fns) {
	return (arg) => fns.reduce((prev, fn) => fn(prev), arg);
}

/* extra function with fluent language */
function pipeValue(args) {
	return {
		to: (...fns) => pipe(...fns)(args)
	};
}

pipeValue(value).to(
	removeFalsyValues,
	greaterThanZero,
	showValues
);