harthur

/*
 * Running this scratchpad in chrome mode will open a devtools window that's debugging
 * the devtools window that's debugging the currently selected tab.
 */
let {devtools} = Components.utils.import("resource:///modules/devtools/gDevTools.jsm", {});
 
let tabTarget = devtools.TargetFactory.forTab(gBrowser.selectedTab);
let toolbox = gDevTools.getToolbox(tabTarget);
 
let win = toolbox._host.frame.contentWindow;

harthur

/*
 * Running this scratchpad in chrome mode will open a devtools window that's debugging
 * the current browser window
 */

let {devtools} = Components.utils.import("resource:///modules/devtools/gDevTools.jsm", {});
let win = Services.wm.getMostRecentWindow("navigator:browser");
let target = devtools.TargetFactory.forWindow(win);
 
let toolbox = gDevTools.showToolbox(target, "styleeditor", "window");

harthur

/**
 * Running the following code in a Scratchpad running in the 'browser' context
 * will add a `deviceorientation` command to the Firefox command line.
 */ 
Components.utils.import("resource:///modules/devtools/gcli.jsm");

gcli.addCommand({
  name: 'deviceorientation',
  description: 'Fire a deviceorientation event',
  params: [{

harthur

• Aurora and Nightly build for latest tools.

• Gist for deviceorientation command demo.

• Devtools Guide. note: soon to be replaced by MDN docs when they're updated.

• Getting Involved

harthur

/*
 * Run this in a Firefox "Scratchpad" (Tools > Web Developer > Scratchpad)
 * With Cmd-R to simulate an orientation event in the current page
 */

function simulateOrientation(alpha, beta, gamma) {
  var event = document.createEvent("DeviceOrientationEvent");

  event.initDeviceOrientationEvent('deviceorientation',
       true, true, alpha, beta, gamma, true);

harthur

/* This node.js script checks the Olympics website for any new Women's
 * Gymnastics tickets. Every five minutes it fetches the available tickets
 * page for the event, and uses the cheerio (https://npmjs.org/package/cheerio)
 * module to parse the page and look for the UI element that indicates there
 * are tickets.
 *
 * If there are any tickets it plays a song using node's built in `exec()`
 * function to call OS X's command line utility to play a sound file. It also
 * uses the growl module (https://npmjs.org/package/growl) to post a growl
 * notification.

harthur

Repos from the first Hack And Tell - Silicon Valley 2011-05-23

• Scottbot - TWSS IRC bot
• Brain - JS Machine Learning
• Emscripten - LLVM->JavaScript
• Dom3d - 3D in CSS
• Spritificator - HTML5 Sprite Creator
• Beamjs - V8<->Erlang

harthur

Go to Sublime Text 2 > Preferences > Key Bindings - User and add this JSON to the file:

[
    { "keys": ["super+shift+o"],
      "command": "insert_snippet",
      "args": {
        "contents": "dump(${1:} + \"\\n\");${0}"
      },
 "description": "insert a dump() call at the cursor, tab once to jump past"

harthur

harthur/brain - neural networks karpathy/covnetjs - convolutional neural networks naturalnode/natural - bayesian classifier - NLP peterbraden/node-opencv - computer vision karpathy/svmjs - support vector machines karpathy/forestjs - random forests harthur/clusterfck - clustering

harthur

function getRenderedFontFamily(fontFamily) {
  var canvas = document.createElement("canvas");
  var context = canvas.getContext("2d");

  let families = fontFamily.split(/\s*,\s*/);

  for each (let family in families) {
    if (family == 'inherit') {
      return family;
    }