Miguel Leon miguel-leon

Check out gists https://gist.github.com/miguel-leon

miguel-leon / as-path.ts

Last active November 1, 2024 00:32

Path builder for a propety accessor function

	interface Accessor<T, U> {
	(state: T): U;
	}

	function property_access(p: string, optionally_chained: boolean): string {
	let result = p;
	const letter_start = /^[A-Za-z]/.test(p);
	if (!letter_start) {
	if (!/^\d+$/.test(p)) {
	result = `'${ result }'`

miguel-leon / copy-search.html

Created November 21, 2023 07:19

	<!doctype html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport"
	content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>Document</title>
	<style>
	@media (prefers-color-scheme: dark) {

miguel-leon / Git emoji guide.md

Last active May 31, 2025 00:28

Guide for emojis in git commit messages.

ORGANIZATION

miguel-leon / uniques.test.ts

Created March 3, 2020 20:39

array uniques

	import { uniques, uniquesByAtt } from './uniques';


	describe('uniques function', () => {
	it('should filter unique elements by strict equality by default', () => {
	const value = [1, 2, 3, 3, 2, 1, 4, 5, 5];
	const res = uniques(value);
	expect(res).toEqual([1, 2, 3, 4, 5]);
	});

miguel-leon / deepSet.ts

Created August 14, 2019 16:21

safely deep set nested object properties

	function deepSet(value: any, obj: object, ...path: string[]) {
	const target = path.slice(0, -1).reduce((p: any, k) => (p[k] = p[k] \|\| {}), obj);
	path.slice(-1).forEach(k => target[k] = value);
	}


	let o;

	deepSet(99, o = { a: { x: 88 } }, ...'a.b.c'.split('.'));
	console.log(o);

miguel-leon / idx.js

Created June 12, 2019 19:16

safe access deep properties

const idx = (o, ...p) => p.reduce((a, i) => a && a[i], o)

miguel-leon / array-utils.ts

Created November 27, 2018 19:11

	export {};

	declare global {
	interface ArrayConstructor {
	range(size, start?): number[];
	}
	}

	Array.range = Array.range \|\| function (size, start = 0) {
	return Array.from(Array(size + start).keys()).slice(start);

miguel-leon / LazySequence.ts

Created November 26, 2018 04:27

	export function* LazySequence(to, from = 0) {
	while (from < to) {
	yield from++;
	}
	}

miguel-leon / appendHtml.js

Created November 20, 2018 22:37

parse html and append to element

	function appendHtml(element, content) {
	const aux = document.createElement(element.tagName);
	aux.innerHTML = content;
	for (let i = 0; i < aux.children.length; i++) {
	element.appendChild(aux.children[i]);
	}
	}

miguel-leon / Action.ts

Last active October 16, 2018 22:34

Auto typed actions to use with stores