Polyfills for Array methods: forEach(), map(), filter(), reduce(),find()
Conditionally loading a polyfill for :focus-visible
Boy, was it hard to implement proper keyboard shortcuts
Two major polyfill interview question's every js developer face.
When It Makes Sense to Use a Utility Function Instead of a Polyfill
I made a JS Module so you can *almost* use the pipeline operator today!
requestAnimationFrame (with high resolution timing, very precise) and performance.now polyfills