yoavweiss

var DOMTokenListSupports = function(tokenList, token) {
  if (!tokenList || !tokenList.supports) {
    return;
  }
  try {
    return tokenList.supports(token);
  } catch (e) {
    if (e instanceof TypeError) {
      console.log("The DOMTokenList doesn't have a supported tokens list");
    } else {

dhm116

'use strict';

// Add ECMA262-5 method binding if not supported natively
//
if (!('bind' in Function.prototype)) {
    Function.prototype.bind= function(owner) {
        var that= this;
        if (arguments.length<=1) {
            return function() {
                return that.apply(owner, arguments);

irori

#!/usr/bin/ruby
#
# Calculate "Time to First Meaningful Paint" from trace events
#   usage: ttfmp.rb trace.json

require 'json'

class TraceAnalyzer
  def initialize(trace)
    @json = JSON.parse(IO.read(trace))

millermedeiros

// USAGE ------
// ============

var shell = require('./shellHelper');

// execute a single shell command
shell.exec('npm test --coverage', function(err){
    console.log('executed test');
}});

jacob-ebey

let fs = require("fs");

// TODO: Make it configurable based on publicPath and assetsBuildDirectory
function inlineCssMiddleware() {
  /**
   *
   * @param {import("express").Request} req
   * @param {import("express").Response} res
   * @param {import("express").NextFunction} next
   */

igrigorik

var DOMTokenListSupports = function(tokenList, token) {
  if (!tokenList || !tokenList.supports) {
    return;
  }
  try {
    return tokenList.supports(token);
  } catch (e) {
    if (e instanceof TypeError) {
      console.log("The DOMTokenList doesn't have a supported tokens list");
    } else {

paulirish

// @license http://opensource.org/licenses/MIT
// copyright Paul Irish 2015


// Date.now() is supported everywhere except IE8. For IE8 we use the Date.now polyfill
//   github.com/Financial-Times/polyfill-service/blob/master/polyfills/Date.now/polyfill.js
// as Safari 6 doesn't have support for NavigationTiming, we use a Date.now() timestamp for relative values

// if you want values similar to what you'd get with real perf.now, place this towards the head of the page
// but in reality, you're just getting the delta between now() calls, so it's not terribly important where it's placed

bendc

var supportsES6 = function() {
  try {
    new Function("(a = 0) => a");
    return true;
  }
  catch (err) {
    return false;
  }
}();

ebidel

<!-- 
Complete feature detection for ES modules. Covers:

1. Static import: import * from './foo.js';
2. Dynamic import(): import('./foo.js').then(module => {...});

Demo: http://jsbin.com/tilisaledu/1/edit?html,output

Thanks to @_gsathya, @kevincennis, @rauschma, @malyw for the help.
-->

jacob-ebey

Remix Deferred

Remix Deferred is currently implemented on top of React's Suspense model but is not limited to React. This will be a quick dive into how "promise over the wire" is accomplished.

SSR + Hydration

It isn't rocket science, but a quick recap of how frameworks such as react do SSR:

1. Load data
2. Render the app