I’ve been writing a bunch of jest tests recently for libraries that use the underlying window.crypto methods like getRandomValues() and window.crypto.subtle key management methods. One problem I run into is that the window.crypto object isn’t available, so I need to shim it.
To use the window.crypto methods, you will need Node 15+. You can set the window.crypto by importing the crypto package and setting it on the global:
const crypto = require('crypto').webcrypto;
// Shims the crypto property onto global
global.crypto = crypto;
I really loathe creating mock functions for missing libraries in Node because they can lead to faulty positives on tests; I really appreciate webcrypto being available!
CSS @supports
Feature detection via JavaScript is a client side best practice and for all the right reasons, but unfortunately that same functionality hasn’t been available within CSS. What we end up doing is repeating the same properties multiple times with each browser prefix. Yuck. Another thing we…
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This is the hardest thing I’ve ever had to write, much less admit to myself. I’ve written resignation letters from jobs I’ve loved, I’ve ended relationships, I’ve failed at a host of tasks, and let myself down in my life. All of those feelings were very…
Facebook-Style Modal Box Using MooTools
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Simple Image Lazy Load and Fade
One of the quickest and easiest website performance optimizations is decreasing image loading. That means a variety of things, including minifying images with tools like ImageOptim and TinyPNG, using data URIs and sprites, and lazy loading images. It’s a bit jarring when you’re lazy loading images and they just…
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