david-mateogit

import { useEffect, useState } from "react";

export const useMercadoPago = (preferenceId, divEl) => {
  const [status, setStatus] = useState(preferenceId ? "loading" : "idle");

  useEffect(() => {
    const divContainer = document.getElementById(divEl);
    let script = divContainer.querySelector("script");
    if (!preferenceId) {
      setStatus("idle");

david-mateogit

function debounce(func, duration) {
  let timeout;

  return function(...args) => {
    const effect = () => {
      timeout = null;
      return func.apply(this, args);
    }

    clearTimeout(timeout);

david-mateogit

function throttle(func, delay) {
  let shouldWait = false;
 
  return function(...args) {
    if (!shouldWait) {
      func.apply(this, args);
      shouldWait = true;
 
      setTimeout(function() {
        shouldWait = false;

david-mateogit

// Binary search
// Take sorted array and search from the middle;

const values = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10];

const binary = (val, arr) => {
  let lower = arr[0];
  let upper = arr.length - 1;

  // counter

david-mateogit

// test cards 
// https://developer.paypal.com/docs/classic/payflow/payflow-pro/payflow-pro-testing/#credit-card-numbers-for-testing

const card = 378282246310005;
let mod = 1;
let flag = true;
let sum = 0;
const digits = 16;