Files
lodash/isTypedArray.js
2019-06-26 09:11:14 -07:00

31 lines
880 B
JavaScript

import getTag from './.internal/getTag.js'
import nodeTypes from './.internal/nodeTypes.js'
import isObjectLike from './isObjectLike.js'
/** Used to match `toStringTag` values of typed arrays. */
const reTypedTag = /^\[object (?:Float(?:32|64)|(?:Int|Uint)(?:8|16|32)|Uint8Clamped)Array\]$/
/* Node.js helper references. */
const nodeIsTypedArray = nodeTypes && nodeTypes.isTypedArray
/**
* Checks if `value` is classified as a typed array.
*
* @since 3.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
* @example
*
* isTypedArray(new Uint8Array)
* // => true
*
* isTypedArray([])
* // => false
*/
const isTypedArray = nodeIsTypedArray
? (value) => nodeIsTypedArray(value)
: (value) => isObjectLike(value) && reTypedTag.test(getTag(value))
export default isTypedArray