Skip to content

Instantly share code, notes, and snippets.

View limichange's full-sized avatar
🎯
Focusing

limichange limichange

🎯
Focusing
View GitHub Profile
@ChrisChares
ChrisChares / AsyncAwaitGenerator.md
Last active September 30, 2022 13:26
async/await with ES6 Generators & Promises

async/await with ES6 Generators & Promises

This vanilla ES6 function async allows code to yield (i.e. await) the asynchronous result of any Promise within. The usage is almost identical to ES7's async/await keywords.

async/await control flow is promising because it allows the programmer to reason linearly about complex asynchronous code. It also has the benefit of unifying traditionally disparate synchronous and asynchronous error handling code into one try/catch block.

This is expository code for the purpose of learning ES6. It is not 100% robust. If you want to use this style of code in the real world you might want to explore a well-tested library like co, task.js or use async/await with Babel. Also take a look at the official async/await draft section on desugaring.

Compatibility

  • node.js - 4.3.2+ (maybe earlier with
@barnabas-szekeres
barnabas-szekeres / counter-component.js
Last active February 18, 2017 22:01
Store states in sessionstorage
//Component
import Counter from '../store/counter';
export default {
data() {
return {
};
},
computed: {
counter() {
@jish
jish / promise.js
Created October 28, 2014 22:35
An example "always" behavior for ES6 promises. This only works if you do not create / return intermediate promises.
// A thing I want to do
// This flow only involves **one** promise, for example an ajax call
// None of the subsequent `then` or `catch` calls, return new promises.
var explode = false;
var promise = new Promise(function(resolve, reject) {
if (explode) {
@DanHerbert
DanHerbert / fix-homebrew-npm.md
Last active February 12, 2024 17:18
Instructions on how to fix npm if you've installed Node through Homebrew on Mac OS X or Linuxbrew

OBSOLETE

This entire guide is based on an old version of Homebrew/Node and no longer applies. It was only ever intended to fix a specific error message which has since been fixed. I've kept it here for historical purposes, but it should no longer be used. Homebrew maintainers have fixed things and the options mentioned don't exist and won't work.

I still believe it is better to manually install npm separately since having a generic package manager maintain another package manager is a bad idea, but the instructions below don't explain how to do that.

Fixing npm On Mac OS X for Homebrew Users

Installing node through Homebrew can cause problems with npm for globally installed packages. To fix it quickly, use the solution below. An explanation is also included at the end of this document.

@danharper
danharper / background.js
Last active March 30, 2024 18:25
Bare minimum Chrome extension to inject a JS file into the given page when you click on the browser action icon. The script then inserts a new div into the DOM.
// this is the background code...
// listen for our browerAction to be clicked
chrome.browserAction.onClicked.addListener(function (tab) {
// for the current tab, inject the "inject.js" file & execute it
chrome.tabs.executeScript(tab.ib, {
file: 'inject.js'
});
});
@addyosmani
addyosmani / headless.md
Last active May 1, 2024 03:05
So, you want to run Chrome headless.

Update May 2017

Eric Bidelman has documented some of the common workflows possible with headless Chrome over in https://developers.google.com/web/updates/2017/04/headless-chrome.

Update

If you're looking at this in 2016 and beyond, I strongly recommend investigating real headless Chrome: https://chromium.googlesource.com/chromium/src/+/lkgr/headless/README.md

Windows and Mac users might find using Justin Ribeiro's Docker setup useful here while full support for these platforms is being worked out.