Daofeng Wu idiotWu

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

Strictly Frameworks

Mobiledoc - github.com/bustle/mobiledoc-kit - framework to build editors with a standardized JSON structure
ShareDB - github.com/share/sharedb - framework to sync any JSON document using operational transforms, add real-time collaborative editing to anything else
Bangle.dev - github.com/bangle-io/bangle.dev - toolkit built for building editors, based on prosemirror

Abstracted Editors

These use separate document structures instead of HTML, some are more modular libraries than full editors

ServiceWorker for github pages

This is a ServiceWorker template to turn small github pages into offline ready app.

Why ?

Whenever I make small tools & toys, I create github repo and make a demo page using github pages (like this one).
Often these "apps" are just an index.html file with all the nessesary CSS and JavaScript in it (or maybe 2-3 html/css/js files). I wanted to cache these files so that I can access my tools offline as well.

Notes

Make sure your github pages have HTTPS enforced, you can check Settings > GitHub Pages > Enforce HTTPS of your repository.

Revision 3 http://webapps.stackexchange.com/revisions/89551/3

Show URL used to edit responses from a Google Form in a Google Spreadsheet by using a script

I'm trying to make the edit URL for a Google Form automatically populate in the response Google Sheet that it's attached to. I've seen this already and want to use it, but I'm having issues trying to figure out where exactly to put the script.

I've tried putting it in the script editor in the Google Spreadsheet that I would like the URL to appear in, but I'm not sure where to go from there. In the script editor I've tried to test it as an add-on but that didn't end up working.

I have little experience with scripts and the script editor in Google Sheets. As a final note I am using one other add-on called AutoCrat in the same Google Spreadsheet.

	{
	"keys": ["tab"],
	"command": "expand_abbreviation_by_tab",

	// put comma-separated syntax selectors for which
	// you want to expandEmmet abbreviations into "operand" key
	// instead of SCOPE_SELECTOR.
	// Examples: source.js, text.html - source
	"context": [
	{

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>Test App</title>
	</head>

	<style>
	html, body {
	height: 100%;

	var str = 'class ಠ_ಠ extends Array {constructor(j = "a", ...c) {const q = (({u: e}) => {return { [`s${c}`]: Symbol(j) };})({});super(j, q, ...c);}}' +
	'new Promise((f) => {const a = function* (){return "\u{20BB7}".match(/./u)[0].length === 2 \|\| true;};for (let vre of a()) {' +
	'const [uw, as, he, re] = [new Set(), new WeakSet(), new Map(), new WeakMap()];break;}f(new Proxy({}, {get: (han, h) => h in han ? han[h] ' +
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	try {
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	} catch(e) {
	alert('Your browser does not support ES6!')
	}