JavaScript posts
Hugo: Add Copy-to-Clipboard Button to Code Blocks with Vanilla JS

Hugo: Add Copy-to-Clipboard Button to Code Blocks with Vanilla JS

Nov 13 2019 — Hugo includes a built-in syntax-highlighter called Chroma. Chroma is extremely fast since it is written in pure Go (like Hugo) and supports every language I can think of. Chroma’s speed is especially important since syntax highlighters are notorious for causing slow page loads. However, it lacks one vital feature — an easy way to copy a code block to the clipboard. I decided to document my implementation using only vanilla JS since every blog post I found for this issue relied on jquery to parse the DOM, which is a shame. We can do better, people.