export var VERSION = '1.13.7';Current version.
export var VERSION = '1.13.7';Establish the root object, window (self) in the browser, global
on the server, or this in some virtual machines. We use self
instead of window for WebWorker support.
export var root = (typeof self == 'object' && self.self === self && self) ||
(typeof global == 'object' && global.global === global && global) ||
Function('return this')() ||
{};Save bytes in the minified (but not gzipped) version:
export var ArrayProto = Array.prototype, ObjProto = Object.prototype;
export var SymbolProto = typeof Symbol !== 'undefined' ? Symbol.prototype : null;Create quick reference variables for speed access to core prototypes.
export var push = ArrayProto.push,
slice = ArrayProto.slice,
toString = ObjProto.toString,
hasOwnProperty = ObjProto.hasOwnProperty;Modern feature detection.
export var supportsArrayBuffer = typeof ArrayBuffer !== 'undefined',
supportsDataView = typeof DataView !== 'undefined';All ECMAScript 5+ native function implementations that we hope to use are declared here.
export var nativeIsArray = Array.isArray,
nativeKeys = Object.keys,
nativeCreate = Object.create,
nativeIsView = supportsArrayBuffer && ArrayBuffer.isView;Create references to these builtin functions because we override them.
export var _isNaN = isNaN,
_isFinite = isFinite;Keys in IE < 9 that won’t be iterated by for key in ... and thus missed.
export var hasEnumBug = !{toString: null}.propertyIsEnumerable('toString');
export var nonEnumerableProps = ['valueOf', 'isPrototypeOf', 'toString',
'propertyIsEnumerable', 'hasOwnProperty', 'toLocaleString'];The largest integer that can be represented exactly.
export var MAX_ARRAY_INDEX = Math.pow(2, 53) - 1;