classes

September 04, 2021

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Implementation

Add multiple classes that can also be type boolean, null and undefined.

src/util/classes.ts
export function classes(...arr: (string | boolean | null | undefined)[]): string {
  return arr.filter(Boolean).join(" ");
}
tsx

Usage

<div
  className={classes("myClass", isTrue && "anotherClass")}
>
  Hello world!
</div>
tsx