Hicham Benjelloun HichamBenjelloun

HichamBenjelloun / parseCookies.js

Last active June 25, 2020 18:27

A function that parses a string representation of a list of cookies into an object

	const SEP_KEYVAL = '='; // represents a separator between a key and the corresponding value
	const SEP_COOKIES = ';'; // represents a separator between two adjacent cookies

	const parseKeyValuePair = keyValuePairStr => {
	const [key, value] =
	keyValuePairStr
	.trimStart()
	.split(SEP_KEYVAL);

	return [key, decodeURIComponent(value)];

HichamBenjelloun / subIterable.js

Last active March 19, 2021 23:36

A function that creates a generator over a subset of a specified iterable using a condition

	const filter = function* (iterable, cond) {
	const iterator = iterable[Symbol.iterator]();
	let cursor = iterator.next();
	do {
	const {value} = cursor;
	if (cond(value)) {
	yield value;
	}
	} while (!(cursor = iterator.next()).done);
	};

HichamBenjelloun / sum.js

Last active June 17, 2024 09:12

Generic sum function

	const sum = (...args) =>
	Object.assign(
	sum.bind(null, ...args),
	{valueOf: () => args.reduce((acc, cur) => acc + cur, 0)}
	);

	export default sum;

HichamBenjelloun / unarrow.js

Last active June 25, 2020 00:02

Transforming an arrow function into a regular function in JavaScript

	const unarrow = arrowFunc => {
	const arrowFuncDefinition = arrowFunc.toString();
	const hasEnclosingBraces = arrowFuncDefinition.indexOf('}') === arrowFuncDefinition.length - 1;

	const newDefinition =
	`return function${
	hasEnclosingBraces ?
	arrowFuncDefinition.replace('=>', '') :
	arrowFuncDefinition.replace('=>', '{return ') + '}'
	}`;