sebmarkbage

The Rules of React

All libraries have subtle rules that you have to follow for them to work well. Often these are implied and undocumented rules that you have to learn as you go. This is an attempt to document the rules of React renders. Ideally a type system could enforce it.

What Functions Are "Pure"?

A number of methods in React are assumed to be "pure".

On classes that's the constructor, getDerivedStateFromProps, shouldComponentUpdate and render.

ldong

Download videos from egghead

Go to the egghead website, i.e. Building a React.js App

run

$.each($('h4 a'), function(index, video){
  console.log(video.href);
});

gaearon

  configureDragDrop(registerType) {
    var imageThreshold = Math.max(120, window.innerHeight / 4),
        sectionThreshold = Math.max(140, window.innerHeight / 4),
        currentDY = 0,
        frame;

    function makeScrollingHandler(threshold) {
      function getScrollDY(clientY) {
        var speed;
        if (clientY < threshold) {

aczietlow

Webdriver PHP API workthough

• Open a browser

  # start an instance of firefox with selenium-webdriver
  
  $browser_type = 'firefox'
  $host = 'http://localhost:4444/wd/hub'
  

$capabilities = array(\WebDriverCapabilityType::BROWSER_NAME => $browser_type);

pascalpoitras

Mouse

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enable

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mislav

I use tmux splits (panes). Inside one of these panes there's a Vim process, and it has its own splits (windows).

In Vim I have key bindings C-h/j/k/l set to switch windows in the given direction. (Vim default mappings for windows switching are the same, but prefixed with C-W.) I'd like to use the same keystrokes for switching tmux panes.

An extra goal that I've solved with a dirty hack is to toggle between last active panes with C-\.

Here's how it should work: