classNames.ts

Copyright (c) 2018 Jed Watson. Licensed under the MIT License (MIT), see: @link http://jedwatson.github.io/classnames /

/**
 * Copyright (c) 2018 Jed Watson.
 * Licensed under the MIT License (MIT), see:
 *
 * @link http://jedwatson.github.io/classnames
 */

type ClassNamesArg = undefined | string | Record<string, boolean> | ClassNamesArg[];

/**
 * A simple JavaScript utility for conditionally joining classNames together.
 *
 * @param args A series of classes or object with key that are class and values
 * that are interpreted as boolean to decide whether or not the class
 * should be included in the final class.
 */
export function classNames(...args: ClassNamesArg[]): string {
  let classes = '';

  for (const arg of args) {
    classes = appendClass(classes, parseValue(arg));
  }

  return classes;
}

function parseValue(arg: ClassNamesArg) {
  if (typeof arg === 'string' || typeof arg === 'number') {
 

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