MarkoCen

function isPromise(object){
  if(Promise && Promise.resolve){
    return Promise.resolve(object) == object;
  }else{
    throw "Promise not supported in your environment"
  }
}

var i = 1;
var p = new Promise(function(resolve,reject){

alirezas

function fadeOut(el){
  el.style.opacity = 1;

  (function fade() {
    if ((el.style.opacity -= .1) < 0) {
      el.style.display = "none";
    } else {
      requestAnimationFrame(fade);
    }
  })();

chranderson

// check version
node -v || node --version

// list locally installed versions of node
nvm ls

// list remove available versions of node
nvm ls-remote

// install specific version of node

nepsilon

How to change your commit messages in Git?

At some point you’ll find yourself in a situation where you need edit a commit message. That commit might already be pushed or not, be the most recent or burried below 10 other commits, but fear not, git has your back 🙂.

Not pushed + most recent commit:

git commit --amend

This will open your $EDITOR and let you change the message. Continue with your usual git push origin master.

msankhala

// Stop all ajax request by http://tjrus.com/blog/stop-all-active-ajax-requests
$.xhrPool = []; // array of uncompleted requests
$.xhrPool.abortAll = function() { // our abort function
    $(this).each(function(idx, jqXHR) { 
        jqXHR.abort();
    });
    $.xhrPool.length = 0
};
 
$.ajaxSetup({

wassname

/**
 * Lodash mixins for combinatorics
 * by: wassname & visangela 
 * url: https://gist.github.com/wassname/a882ac3981c8e18d2556/edit
 * lodash contrib issue: https://github.com/node4good/lodash-contrib/issues/47
 * lic: same as lodash
 * Inspired by python itertools: https://docs.python.org/2.7/library/itertools.html
 *
 * Usage:
 *   permutations([0,1,2],2)                 // [[0,1],[0,2],[1,0],[1,2],[2,0],[2,1]]

bexcitement

// set the current exchange rate
var from_currency = 'EUR';

// set the currency you want to change to
var to_currency = 'USD';

// sets the exchange rate between from_currency and to_currency in session storage
function getExchangeRate(){
  window.$.ajax({
    url: "https://query.yahooapis.com/v1/public/yql?q=select%20rate%2Cname%20from%20csv%20where%20url%3D'http%3A%2F%2Fdownload.finance.yahoo.com%2Fd%2Fquotes%3Fs%3D" + from_currency + to_currency + "%253DX%26f%3Dl1n'%20and%20columns%3D'rate%2Cname'&format=json",

Restuta

/*  Sometimes it's pretty easy to run ito troubles with React ES6 components.
    Consider the following code: */

class EventStub extends Component {
  componentDidMount() {
    window.addEventListener('resize', this.onResize.bind(this)); //notice .bind
  }
  
  componentWillUnmount() {
    window.removeEventListener('resize', this.onResize.bind(this));

beshkenadze

##Погодное одностраничное веб-приложение

(!) Данные можно взять с сайта openweathermap.org или с любого другого сервиса.

(!) Обязательно использовать react.js и redux.

Приложение должно уметь:

• Добавлять/удалять города
• Сохранять локально данные

nolanlawson

// Promise.all is good for executing many promises at once
Promise.all([
  promise1,
  promise2
]);

// Promise.resolve is good for wrapping synchronous code
Promise.resolve().then(function () {
  if (somethingIsNotRight()) {
    throw new Error("I will be rejected asynchronously!");