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@maxboeck
maxboeck / donottrack.js
Last active Mar 25, 2020
Check "Do Not Track" Client Hint
View donottrack.js
const allowsTracking = () => {
const dnt =
window.doNotTrack ||
navigator.doNotTrack ||
navigator.msDoNotTrack
if (dnt === 1 || dnt === '1' || dnt === 'yes') {
return false
}
if ('msTrackingProtectionEnabled' in window.external) {
return !window.external.msTrackingProtectionEnabled()
@praveenpuglia
praveenpuglia / shadow-dom.md
Last active Aug 26, 2021
Everything you need to know about Shadow DOM
View shadow-dom.md

I am moving this gist to a github repo so more people can contribute to it. Also, it makes it easier for me to version control.

Please go to - https://github.com/praveenpuglia/shadow-dom-in-depth for latest version of this document. Also, if you find the document useful, please shower your love, go ⭐️ it. :)

Shadow DOM

Heads Up! It's all about the V1 Spec.

In a nutshell, Shadow DOM enables local scoping for HTML & CSS.

@ljharb
ljharb / array_iteration_thoughts.md
Last active Oct 19, 2021
Array iteration methods summarized
View array_iteration_thoughts.md

Array Iteration

https://gist.github.com/ljharb/58faf1cfcb4e6808f74aae4ef7944cff

While attempting to explain JavaScript's reduce method on arrays, conceptually, I came up with the following - hopefully it's helpful; happy to tweak it if anyone has suggestions.

Intro

JavaScript Arrays have lots of built in methods on their prototype. Some of them mutate - ie, they change the underlying array in-place. Luckily, most of them do not - they instead return an entirely distinct array. Since arrays are conceptually a contiguous list of items, it helps code clarity and maintainability a lot to be able to operate on them in a "functional" way. (I'll also insist on referring to an array as a "list" - although in some languages, List is a native data type, in JS and this post, I'm referring to the concept. Everywhere I use the word "list" you can assume I'm talking about a JS Array) This means, to perform a single operation on the list as a whole ("atomically"), and to return a new list - thus making it mu

@paulirish
paulirish / what-forces-layout.md
Last active Oct 19, 2021
What forces layout/reflow. The comprehensive list.
View what-forces-layout.md

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
View Getting-Cheat-Sheet.md

Git Cheat Sheet

Visit my blog.

Commands

Getting Started

git init

or

@asafge
asafge / ng-really.js
Created Nov 12, 2013
ng-really? An AngularJS directive that creates a confirmation dialog for an action.
View ng-really.js
/**
* A generic confirmation for risky actions.
* Usage: Add attributes: ng-really-message="Are you sure"? ng-really-click="takeAction()" function
*/
angular.module('app').directive('ngReallyClick', [function() {
return {
restrict: 'A',
link: function(scope, element, attrs) {
element.bind('click', function() {
var message = attrs.ngReallyMessage;
@vieron
vieron / Export each as SVG.js
Last active Jun 4, 2021
Export each as SVG. Modified some lines from the original by Aaron Beall (http://fireworks.abeall.com/extensions/commands/Export/Export%20SVG.jsf) to export each selected object as a separate SVG file.
View Export each as SVG.js
// Fireworks JavaScript Command
// Exports current document state as SVG graphics format
// Install by copying to Fireworks/Configuration/Commands/
// Run via the Commands menu in Fireworks
// Aaron Beall 2010-2011
// Version
var VERSION = "0.6.1";
// Params
@dergachev
dergachev / GIF-Screencast-OSX.md
Last active Oct 18, 2021
OS X Screencast to animated GIF
View GIF-Screencast-OSX.md

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Screencapture GIF

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application: