monjer

Number.prototype.pad = function(size) {
  var s = String(this);
  while (s.length < (size || 2)) {s = "0" + s;}
  return s;
}

monjer

/**
 * @param {string} dir file or folder path
 * @param {function} fileHandler hanlder function used for deal with file
 */
function walk(dir, fileHandler = (filePath) => filePath) {
  const fstats = fs.lstatSync(dir);
  if (fstats.isDirectory()) {
    const files = fs.readdirSync(dir);
    files.forEach((file) => {

monjer

//
// Simple plugins mode in koajs use JavaScript async await
// https://github.com/senchalabs/connect/blob/master/index.js
//
const plugins = {
  stack: [],
  use: (plugin) => {
    plugins.stack.push(plugin);
  },
  run: async (done) => {

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const fillArrayWithIndex = (length) => {
  return Array.from(Array(length).keys());
} 

const fillArray = (start, end) => {  
  return Array.from(Array(end - start + 1).keys()).map((v)=>v+start);
}

const fillArrayWithStep = (start, end, step=1) => {  
  return Array.from(Array(end - start + step).keys()).map((v)=>v+start);

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const schedule = (() => {
  const taskQueue = [];
  const runTask = () => {
      while (taskQueue.length > 0) {
          const task = taskQueue.shift();
          task();
      }
  };
  const isArray = (obj) => {
      return Object.prototype.toString.call(obj) === "[object Array]";

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const defProp = (obj, name, value) => {
  obj[name] = value;
};
const isThenable = (value) => {
  return value && typeof value.then === "function";
};
const State = {
  Pending: "Pending",
  Fullfill: "Fullfill",
  Reject: "Reject",

monjer

const memo = (fun) => {
  let lastArgs = [];
  let lastResult;
  return (...args) => {
    let argsEqual = true;
    for (let i = 0; i < args.length; i++) {
      if (args[i] !== lastArgs[i]) {
        argsEqual = false;
        break;
      }

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const downloadFile = (data, fileName, type = 'text/plain') => {
  const a = document.createElement('a');
  a.style.display = 'none';
  document.body.appendChild(a);
  a.href = window.URL.createObjectURL(new Blob([data], { type }));
  a.setAttribute('download', fileName);
  a.click();
  setTimeout(()=>{
      document.body.removeChild(a);
  })

monjer

function operation(num) {
  console.log(num);
}

const applyMiddleware = (...middlewares) => {
  return (next) => (...args) => {
    (middlewares || []).forEach(function(middleware) {
      middleware(next)(...args);
    });
  };

monjer

function removeDup(arr){
  return [...new Set(arr)];
}

function removeDup(arr){
  return Array.from(new Set(arr));
}


function removeDup(arr){