gaearon

// connect() is a function that injects Redux-related props into your component.
// You can inject data and callbacks that change that data by dispatching actions.
function connect(mapStateToProps, mapDispatchToProps) {
  // It lets us inject component as the last step so people can use it as a decorator.
  // Generally you don't need to worry about it.
  return function (WrappedComponent) {
    // It returns a component
    return class extends React.Component {
      render() {
        return (

munim

Download Plural Sight videos

Software required:

youtube-dl

After installation and putting the youtube-dl in PATH

youtube-dl \

threepointone

architectures and whatnot

1. plain ol' React

let state = initial
render(view(state), element)

• view is pure!

thurt

////////////////////////////
// using inline closure
////////////////////////////
(function() {  
  arr = []
  
  for (i = 0; i < 10; i++)
    arr[i] = (function(i) {
      return function() { console.log("I am #" + i) }
    })(i)

cem2ran

import React from 'react'
import ReactDOM from 'react-dom'

const Hello = ({name}) => <h1>Hello {name}!</h1>

ReactDOM.render(
  <Hello name={"vjeux"}/>,
  document.body.appendChild(document.createElement("div"))
)

paragonie-scott

Hello software developers,

Please check your code to ensure you're not making one of the following mistakes related to cryptography.

I. General Mistakes

• Writing your own home-grown cryptography primitives (For example: Mifare Classic)
  • Exception: For the sake of learning, but don't deploy it in production.
• Using a fast hash function (e.g. MD5, SHA256) for storing passwords. Use bcrypt instead.
• Not using a cryptographically secure random number generator

vkostyukov

API	Status Codes
[Twitter][tw]	200, 304, 400, 401, 403, 404, 406, 410, 420, 422, 429, 500, 502, 503, 504
[Stripe][stripe]	200, 400, 401, 402, 404, 429, 500, 502, 503, 504
[Github][gh]	200, 400, 422, 301, 302, 304, 307, 401, 403
[Pagerduty][pd]	200, 201, 204, 400, 401, 403, 404, 408, 500
[NewRelic Plugins][nr]	200, 400, 403, 404, 405, 413, 500, 502, 503, 503
[Etsy][etsy]	200, 201, 400, 403, 404, 500, 503
[Dropbox][db]	200, 400, 401, 403, 404, 405, 429, 503, 507

conorhastings

/*
* The reason for this is just a thought exercise
* often people(myself super included) are so confused
* when trying something new, but breaking it down
* to it's simplest existence can be the best way to understand
*/
function createStore(reducer, initState) {
	let state = initState;
	let subscribers = [];

gaearon

function mapValues(obj, fn) {
  return Object.keys(obj).reduce((result, key) => {
    result[key] = fn(obj[key], key);
    return result;
  }, {});
}

function pick(obj, fn) {
  return Object.keys(obj).reduce((result, key) => {
    if (fn(obj[key])) {

paulirish

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent