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Do what you want cause a pirate is free! You are a pirate!

Jonas Raoni Soares da Silva jonasraoni

☠️
Do what you want cause a pirate is free! You are a pirate!
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@jonasraoni
jonasraoni / convert.js
Created October 29, 2020 10:39
Convert boolean to positive (1) negative (-1)
const condition = true;
// I don't know why, but adding an if here makes me sad since I started programming :L
condition ? 1 : -1;
// Alternative way 1
(-1) ** condition;
// Alternative way 2
2 * condition - 1;
@jonasraoni
jonasraoni / Lazy.php
Created June 10, 2020 22:16
Class to retrieve values lazily from a callback
<?php
//+ Jonas Raoni Soares Silva
//@ http://raoni.org
class Lazy {
private $_cache;
private $_handler;
public function __construct(callable $handler)
{
@jonasraoni
jonasraoni / regexp.js
Created June 1, 2020 17:43
RegExp techniques to split
//Split by nothing/position
'USDEUR'.split(/(?=\w{3}$)/); //["USD", "EUR"]
//Split without consuming/swallowing
'2020-10-10'.split(/(-)/); //["2020", "-", "10", "-", "10"]
@jonasraoni
jonasraoni / C# Version Cheat Sheet.md
Created May 28, 2020 12:48 — forked from Gutek/C# Version Cheat Sheet.md
Short cheat sheet of changes in C# language from version 6 to 9

CS 6

read-only auto properties

Small help with immutable types...

// private readonly int _age;
// public int Age { get { return _age; } }
public int Age { get; }
@jonasraoni
jonasraoni / vue-select-all-component.vue
Last active April 10, 2020 18:30
Generic component to select all checkboxes
//+ Jonas Raoni Soares Silva
//@ http://raoni.org
<template lang="pug">
span.field(@click.stop="")
input.is-checkradio(
v-bind="$attrs"
type="checkbox"
ref="checkbox"
:indeterminate.prop="status === null"
@jonasraoni
jonasraoni / .npmrc
Created August 16, 2019 08:54
Example of configuration to make yarn use many registries with authentication
registry=https://artifactory.example.com/api/npm/proxy_of_npm/
//artifactory.example.com/api/npm/proxy_of_npm/:_authToken=SUPER_SECRET_KEY
//artifactory.example.com/api/npm/proxy_of_npm/:always-auth=true
//artifactory.example.com/api/npm/YOUR_PERSONAL_REPOSITORY/:_authToken=SUPER_SECRET_KEY
//artifactory.example.com/api/npm/YOUR_PERSONAL_REPOSITORY/:always-auth=true
@jonasraoni
jonasraoni / format-currency.js
Created August 7, 2019 12:40
Format currency
'1234567890.123'.replace(/\d(?=(\d{3})+(?:$|\.))/g, '$& ');
@jonasraoni
jonasraoni / vue-numeric-directive.js
Last active February 22, 2023 10:16
Numeric directive for Vue (v-decimal and v-integer, with an "unsigned" modifier). Useful to improve existing components which you can't modify.
//+ Jonas Raoni Soares Silva
//@ http://raoni.org
export default class NumericDirective {
constructor(input, binding) {
Object.assign(this, {
input,
binding
});
input.addEventListener('keydown', this);
@jonasraoni
jonasraoni / vue-directive-get-set-v-model.js
Created August 7, 2019 07:21
Get/set v-model value inside an Vue directive
//+ Jonas Raoni Soares Silva
//@ http://raoni.org
// NOTES:
// 1. The vnode is provided by the directive callbacks
// 2. If eval sounds scary to you, you might replace it by any function that provides "navigation" from a string like "array[0].property" (that's what you get from the "expression") =]
getValue (vnode) {
//standard v-model
if (vnode.data.model) {
@jonasraoni
jonasraoni / list-to-tree.js
Created July 5, 2019 13:34
Performatic list to tree using one loop and map
//+ Jonas Raoni Soares Silva
//@ http://raoni.org
function tree(items) {
const tree = [];
const map = new Map;
for (const item of items) {
const placeholder = map.get(item.id);
item.children = placeholder ? placeholder.children : [];
map.set(item.id, item);