underscore/cjs/isTypedArray.js

JavaScript's functional programming helper library.

var _setup = require('./_setup.js');
var isDataView = require('./isDataView.js');
var constant = require('./constant.js');
var _isBufferLike = require('./_isBufferLike.js');

// Is a given value a typed array?
var typedArrayPattern = /\[object ((I|Ui)nt(8|16|32)|Float(32|64)|Uint8Clamped|Big(I|Ui)nt64)Array\]/;
function isTypedArray(obj) {
  // `ArrayBuffer.isView` is the most future-proof, so use it when available.
  // Otherwise, fall back on the above regular expression.
  return _setup.nativeIsView ? (_setup.nativeIsView(obj) && !isDataView(obj)) :
                _isBufferLike(obj) && typedArrayPattern.test(_setup.toString.call(obj));
}

var isTypedArray$1 = _setup.supportsArrayBuffer ? isTypedArray : constant(false);

module.exports = isTypedArray$1;