masak

Ok, I geeked out, and this is probably more information than you need. But it completely answers the question. Sorry. ☺

Locally, I'm at this commit:

$ git show
commit d6cd1e2bd19e03a81132a23b2025920577f84e37
Author: jnthn <jnthn@jnthn.net>
Date:   Sun Apr 15 16:35:03 2012 +0200

When I added FIRST/NEXT/LAST, it was idiomatic but not quite so fast. This makes it faster. Another little bit of masak++'s program.

grayghostvisuals

// Disable Hover on Scroll Class
// Add these helpers to your utlity.css
// http://www.thecssninja.com/javascript/pointer-events-60fps
.disable-hover,
.disable-hover * {
    pointer-events: none !important;
}


//  ----------------------------------------------------------------------

totherik

Per https://code.google.com/p/v8/codesearch#v8/trunk/src/runtime.cc


%CreateSymbol
%CreatePrivateSymbol
%CreateGlobalPrivateSymbol
%NewSymbolWrapper
%SymbolDescription
%SymbolRegistry
%SymbolIsPrivate

LeCoupa

#!/bin/bash
#####################################################
# Name: Bash CheatSheet for Mac OSX
# 
# A little overlook of the Bash basics
#
# Usage:
#
# Author: J. Le Coupanec
# Date: 2014/11/04

bvaughn

/** Measures framerate for the time between start() and stop() calls */
function FramerateMeasurer () {
  this.start = () => {
    this._beginTime = ( performance || Date ).now()
    this._frames = 0
    this._animationFrameId = requestAnimationFrame(this._loop)
  }

  this.stop = () => {
    const endTime = ( performance || Date ).now()

svinkle

Screencast with VoiceOver

Here’s a quick how-to on recording your Mac desktop while using the VoiceOver screen reader. With this setup you’ll be able to capture both video and internal audio at the same time, and hear the audio output while recording.

Setup

For this setup we’ll be on OS X El Capitan and use QuickTime to capture the video and audio. The only extra thing required is the iShowU Audio Capture driver.

Steps

itsnwa

Remove the default delay on auto show/hide macOS dock

$ defaults write com.apple.Dock autohide-delay -float 0 && killall Dock

lkraider

#!/bin/sh

# It seems it's very hard to set resample output quality with Ghostscript.
# So instead rely on `prepress` preset parameter to select a good /QFactor
# and override the options we don't want from there.

gs \
  -o resampled.pdf \
  -sDEVICE=pdfwrite \
  -dPDFSETTINGS=/prepress \

clarkbw

const timing = store => next => action => {
  performance.mark(`${action.type}_start`);
  let result = next(action);
  performance.mark(`${action.type}_end`);
  performance.measure(
    `${action.type}`,
    `${action.type}_start`,
    `${action.type}_end`
  );
  return result;

bvaughn

Infinite lists and reflow

In my experience, infinite lists use two basic layout strategies. The first uses absolute positioning to control where visible items are rendered. The second uses relative positioning (with top/left padding to offset for unrendered items).

In both cases, the list abstraction caches some metadata about the size of items once they have been rendered– so that it knows where to position the items that come after them.

Both of these strategies need to handle reflow. For example, changing the width of a list often affects the height of its itesm. Generally speaking, only the "window" of rendered (visible) items are remeasured in this case (because it would be too slow to rerender and remeasure all of the items before). But once a user scrolls backwards (up/left)– the list needs to account for the reflowed sizes. If it didn't, items would appear to jump up or down (depending on the delta between the previous, cached sizes and the new/reflowed sizes).

How the list deals with new sizes