lodash/castArray.js

import isArray from './isArray.js';

/**
 * Casts `value` as an array if it's not one.
 *
 * @static
 * @since 4.4.0
 * @category Lang
 * @param {*} value The value to inspect.
 * @returns {Array} Returns the cast array.
 * @example
 *
 * castArray(1);
 * // => [1]
 *
 * castArray({ 'a': 1 });
 * // => [{ 'a': 1 }]
 *
 * castArray('abc');
 * // => ['abc']
 *
 * castArray(null);
 * // => [null]
 *
 * castArray(undefined);
 * // => [undefined]
 *
 * castArray();
 * // => []
 *
 * var array = [1, 2, 3];
 * console.log(castArray(array) === array);
 * // => true
 */
function castArray(...args) {
  if (!args.length) {
    return [];
  }
  const value = args[0];
  return isArray(value) ? value : [value];
}

export default castArray;