Add recommendation to prefer `undefined` over `null` in our frontend style guide
What does this MR do?
Adds a recommendation to our frontend style guide to prefer undefined
over null
.
This recommendation comes from Douglas Crockford, author of JavaScript: The Good Parts (one of my favorite books on JavaScript style). Here's a short clip where he describes the rationale for this recommendation: https://youtu.be/PSGEjv3Tqo0?t=560
Edited by Nathan Friend