Joan León nucliweb

`<script> async, defer, async defer, module, nomodule, src, inline` - the cheat sheet

This document is a comparison of various ways the <script> tags in HTML are processed depending on the attributes set.

If you ever wondered when to use inline <script async type="module"> and when <script nomodule defer src="...">, you're in the good place!

Note that this article is about <script>s inserted in the HTML; the behavior of <script>s inserted at runtime is slightly different - see Deep dive into the murky waters of script loading by Jake Archibald (2013)

A curated list of command-line utilities written in Rust

Note: I have moved this list to a proper repository. I'll leave this gist up, but it won't be updated. To submit an idea, open a PR on the repo.

Note that I have not tried all of these personally, and cannot and do not vouch for all of the tools listed here. In most cases, the descriptions here are copied directly from their code repos. Some may have been abandoned. Investigate before installing/using.

The ones I use regularly include: bat, dust, fd, fend, hyperfine, miniserve, ripgrep, just, cargo-audit and cargo-wipe.

atuin: "Magical shell history"
bandwhich: Terminal bandwidth utilization tool

Convert MP4 file to animated WEBP file in ffmpeg CLI

1. Install ffmpeg CLI through homebrew

In terminal.app, install ffmpeg through homebrew

brew install ffmpeg

Validate the installation:

Copied from http://code.lancepollard.com/complete-list-of-html-meta-tags/

Basic HTML Meta Tags

<meta charset='UTF-8'>
<meta name='keywords' content='your, tags'>
<meta name='description' content='150 words'>
<meta name='subject' content='your website's subject'>
<meta name='copyright' content='company name'>

	/**
	* A bookmarklet for viewing shifted elements while debugging
	* Cumulative Layout Shift (web.dev/cls). Works in Chrome 84+
	* Shows the previous position of shifted elements in yellow,
	* and the new position in red.
	*
	* To install:
	* 1. Copy the code starting from the line beginning `javascript:`
	* 2. Add a new bookmark in Chrome, and paste the code in as the URL.
	**/

	#!/bin/bash
	set -x #echo on
	remote_url=$(git config --get remote.origin.url)
	for branch in $(git branch --all \| grep '^\s*remotes' \| egrep --invert-match '(:?HEAD\|master)$'); do
	branch_name=$(echo $branch\| cut -d'/' -f 3)
	git clone -b $branch_name $remote_url $branch_name
	done

	by Addy Osmani (@addyosmani)
	https://twitter.com/addyosmani/status/743571393174872064

	———

	Preresolve DNS hostnames for assets
	<link rel="dns-prefetch" href="https://my-site.com">

	Begin a connection handshake in the background
	<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>

	[lcp]
	const po = new PerformanceObserver(() => {});
	po.observe({type: 'largest-contentful-paint', buffered: true});
	const lastEntry = po.takeRecords().slice(-1)[0];
	return lastEntry.renderTime \|\| lastEntry.loadTime;

	[cls]
	const po = new PerformanceObserver(() => {});
	po.observe({type: 'layout-shift', buffered: true});
	return po.takeRecords().reduce((val, entry) => val + entry.value, 0);

	<css-doodle>
	:doodle {
	@grid: 20x1 / 60vmin;
	overflow: hidden;
	}
	:container {
	transform: scale(25);
	filter: @svg-filter(<svg>
	<filter>
	<feTurbulence baseFrequency="@r(.016, .056, .001)" seed="@r(100)" numOctaves="@r(8, 15)" />