Skip to content

Instantly share code, notes, and snippets.

View mattanddesign's full-sized avatar

Matt Anderson mattanddesign

View GitHub Profile
@rik
rik / simulateTyping.js
Created September 1, 2017 14:30
Fake typing animation with async/await
async function nextFrame() {
return new Promise((resolve) => {
requestAnimationFrame(resolve)
})
}
async function randomDelay(min, max) {
const delay = Math.random() * (max - min) + min;
const startTime = performance.now()
while (performance.now() - startTime < delay) {
@bendc
bendc / display-fade.html
Created June 22, 2016 03:01
Transitioning the opacity of a hidden element
<!doctype html>
<meta charset="utf-8">
<title>Example</title>
<style>
div {
width: 100px;
height: 100px;
background: black;
animation-duration: .5s;
@jbinto
jbinto / getTitleNative.js
Created January 13, 2016 07:32
Get title from remote HTML URL - without jQuery
// Only using native browser features (no jQuery).
// Uses `fetch`, `DOMParser` and `querySelectorAll`.
const getTitle = (url) => {
return fetch(`https://crossorigin.me/${url}`)
.then((response) => response.text())
.then((html) => {
const doc = new DOMParser().parseFromString(html, "text/html");
const title = doc.querySelectorAll('title')[0];
return title.innerText;
@mjackson
mjackson / color-conversion-algorithms.js
Last active November 12, 2025 14:31
RGB, HSV, and HSL color conversion algorithms in JavaScript
/**
* Converts an RGB color value to HSL. Conversion formula
* adapted from http://en.wikipedia.org/wiki/HSL_color_space.
* Assumes r, g, and b are contained in the set [0, 255] and
* returns h, s, and l in the set [0, 1].
*
* @param Number r The red color value
* @param Number g The green color value
* @param Number b The blue color value
* @return Array The HSL representation
@trcarden
trcarden / gist:3295935
Created August 8, 2012 15:28
Rails 3.2.7 SSL Localhost (no red warnings, no apache config)
# SSL self signed localhost for rails start to finish, no red warnings.
# 1) Create your private key (any password will do, we remove it below)
$ openssl genrsa -des3 -out server.orig.key 2048
# 2) Remove the password
$ openssl rsa -in server.orig.key -out server.key