djleonskennedy

const service = {
  getUsers: () => fetch(`https://jsonplaceholder.typicode.com/users`),
  getGroups: () => fetch(`https://jsonplaceholder.typicode.com/posts`)
};

async function getData() {
  try {
    const peoplePromise = await service.getUsers();
    const groupsPromise = await service.getGroups();
    

leofavre

/**
 * Part of [Canivete](http://canivete.leofavre.com/#waitinpromise)
 *
 * Delays the chaining of a promise by a specified
 * time in milliseconds.
 *
 * The function is curried so as to be used inside
 * the `.then()` method, passing along the resolved
 * value from the previous promise step to the next.
 *

Fredx87

import { Component } from '@angular/core';
import { async, TestBed } from '@angular/core/testing';
import { FormControl, FormGroup, ReactiveFormsModule } from '@angular/forms';
import { By } from '@angular/platform-browser';
import { SyncControlDirective } from './sync-control.directive';

class FormGroupHostComponent {
  formGroup = new FormGroup({
    ctrl: new FormControl('')
  });

adriengibrat

/**
 * Object.prototype.watch polyfill
 * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/watch
 *
 * Known limitations:
 * - `delete object[property]` will remove the watchpoint
 *
 * Based on Eli Grey gist https://gist.github.com/eligrey/384583
 * Impovements based on Xose Lluis gist https://gist.github.com/XoseLluis/4750176
 * This version is optimized for minification

mauriciosoares

let clickStream = Rx.Observable.fromEvent(document.getElementById('link'), 'click');

clickStream
  .buffer(clickStream.debounce(250))
  .map(list => list.length)
  .filter(x => x === 2)
  .subscribe(() => {
    console.log('doubleclick');
  })

fernandohu

Reading data before application startup in Angular 2

In this demonstration I will show you how to read data in Angular2 final release before application startup. You can use it to read configuration files like you do in other languages like Java, Python, Ruby, Php.

This is how the demonstration will load data:

a) It will read an env file named 'env.json'. This file indicates what is the current working environment. Options are: 'production' and 'development';

b) It will read a config JSON file based on what is found in env file. If env is "production", the file is 'config.production.json'. If env is "development", the file is 'config.development.json'.

darrenscerri

var Middleware = function() {};

Middleware.prototype.use = function(fn) {
  var self = this;

  this.go = (function(stack) {
    return function(next) {
      stack.call(self, function() {
        fn.call(self, next.bind(self));
      });

dearaujoj

git tag -d TagName && git push origin :refs/tags/TagName

maciekish

#!/bin/bash
killall Xcode
xcrun -k
xcodebuild -alltargets clean
rm -rf "$(getconf DARWIN_USER_CACHE_DIR)/org.llvm.clang/ModuleCache"
rm -rf "$(getconf DARWIN_USER_CACHE_DIR)/org.llvm.clang.$(whoami)/ModuleCache"
rm -rf ~/Library/Developer/Xcode/DerivedData/*
rm -rf ~/Library/Caches/com.apple.dt.Xcode/*
open /Applications/Xcode.app

learncodeacademy

//events - a super-basic Javascript (publish subscribe) pattern

var events = {
  events: {},
  on: function (eventName, fn) {
    this.events[eventName] = this.events[eventName] || [];
    this.events[eventName].push(fn);
  },
  off: function(eventName, fn) {
    if (this.events[eventName]) {