oxedyne/fe2o3 — fe2o3_text/tests/detect_corpus/js/arrow

1.0 KiB, 1 run

created by r1870400018:11996, which is this file's identity for as long as the history lasts, whatever it is later renamed to

1	const compose = (...fns) =>
2	fns.reduce((f, g) => (...args) => f(g(...args)));
3
4	const pipe = (...fns) =>
5	fns.reduce((f, g) => (...args) => g(f(...args)));
6
7	const map = (fn) => (arr) => arr.map(fn);
8	const filter = (pred) => (arr) => arr.filter(pred);
9	const reduce = (fn, init) => (arr) => arr.reduce(fn, init);
10
11	const sum = reduce((a, b) => a + b, 0);
12	const double = map((x) => x * 2);
13	const evens = filter((x) => x % 2 === 0);
14
15	const sumOfDoubledEvens = pipe(evens, double, sum);
16
17	const numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
18	console.log(sumOfDoubledEvens(numbers)); // 60
19
20	const debounce = (fn, ms) => {
21	let timer = null;
22	return (...args) => {
23	clearTimeout(timer);
24	timer = setTimeout(() => fn(...args), ms);
25	};
26	};
27
28	const throttle = (fn, ms) => {
29	let last = 0;
30	return (...args) => {
31	const now = Date.now();
32	if (now - last >= ms) {
33	last = now;
34	fn(...args);
35	}
36	};
37	};
38
39	export { compose, pipe, map, filter, reduce, debounce, throttle };