Love it or loathe it, JSX has made a big impact on front-end engineering. Here's a code-first intro to the HTML-based JavaScript templating language.

Looping, conditionals, and logging. Looping can be finicky in some front-end contexts (like JSX for React).Here’s a looping example in Hyperscript:. for x in [1, 2, 3] index i log i, "is", x end ...