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@paulirish
paulirish / what-forces-layout.md
Last active November 15, 2024 16:45
What forces layout/reflow. The comprehensive list.

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
@paulirish
paulirish / bling.js
Last active November 4, 2024 17:48
bling dot js
/* bling.js */
window.$ = document.querySelectorAll.bind(document);
Node.prototype.on = window.on = function (name, fn) {
this.addEventListener(name, fn);
};
NodeList.prototype.__proto__ = Array.prototype;
@s-panferov
s-panferov / option.ts
Created November 30, 2014 12:15
Option and Result types from Rust in TypeScript
interface Option<T> {
map <U>(fn: (a: T) => U): Option<U>;
isSome(): boolean;
isNone(): boolean;
isSomeAnd(fn: (a: T) => boolean): boolean;
isNoneAnd(fn: () => boolean): boolean;
unwrap(): T;
unwrapOr(def: T): T;
unwrapOrElse(f: () => T): T;
map<U>(f: (a: T) => U): Option<U>;

Preview build: Container grouping and stack composition

NOTE: this is out of date - refer to moby/moby#9694

Here is a preview build of two new features we’re working on concurrently: container grouping (docker groups) and stack composition (docker up). Together, they will eventually form a complete replacement for Fig.

@staltz
staltz / introrx.md
Last active November 14, 2024 11:27
The introduction to Reactive Programming you've been missing
@sergejmueller
sergejmueller / ttf2woff2.md
Last active March 9, 2024 13:37
WOFF 2.0 – Learn more about the next generation Web Font Format and convert TTF to WOFF2
@dbreunig
dbreunig / ReporterSaveFileDescription.md
Last active January 22, 2021 16:07
A description of the data written to the Reporter App Dropbox save folder.

#Reporter Save File Schema

##The Reporter Export File

Reporter saves to your Dropbox account with plaintext JSON files, one for each day. When a Report is entered in the app a file is created for that day if it does not exist. Otherwise, the report is appended to the existing file. The save folder is located in 'Dropbox/Apps/Reporter-App/'.

Reporter save files are named according to the following convention:

YYYY-MM-DD-reporter-export.json
var gulp = require('gulp');
var browserify = require('gulp-browserify');
var concat = require('gulp-concat');
var styl = require('gulp-styl');
var refresh = require('gulp-livereload');
var lr = require('tiny-lr');
var server = lr();
var paths = {
js: 'src/**/*.js',
@tylerneylon
tylerneylon / learn.lua
Last active October 22, 2024 01:07
Learn Lua quickly with this short yet comprehensive and friendly script. It's written as both an introduction and a quick reference. It's also a valid Lua script so you can verify that the code does what it says, and learn more by modifying and running this script in your Lua interpreter.
-- Two dashes start a one-line comment.
--[[
Adding two ['s and ]'s makes it a
multi-line comment.
--]]
----------------------------------------------------
-- 1. Variables and flow control.
----------------------------------------------------