boolbase

two functions: One that returns true, one that returns false

Usage no npm install needed!

<script type="module">
  import boolbase from 'https://cdn.skypack.dev/boolbase';
</script>

README

boolbase

This very simple module provides two basic functions, one that always returns true (trueFunc) and one that always returns false (falseFunc).

WTF?

By having only a single instance of these functions around, it's possible to do some nice optimizations. Eg. CSSselect uses these functions to determine whether a selector won't match any elements. If that's the case, the DOM doesn't even have to be touched.

And why is this a separate module?

I'm trying to modularize CSSselect and most modules depend on these functions. IMHO, having a separate module is the easiest solution to this problem.