Number.NaN - JavaScript 编辑

概述

Number.NaN 表示“非数字”（Not-A-Number）。和 NaN 相同。

不必创建一个 Number 实例来访问该属性，使用 Number.NaN 来访问该静态属性。

Number.NaN 属性的属性特性：
writable	false
enumerable	false
configurable	false

规范

Specification	Status	Comment
ECMAScript 1st Edition (ECMA-262)	Standard	Initial definition. Implemented in JavaScript 1.1.
ECMAScript 5.1 (ECMA-262) Number.NaN	Standard
ECMAScript 2015 (6th Edition, ECMA-262) Number.NaN	Standard
ECMAScript Latest Draft (ECMA-262) Number.NaN	Draft

浏览器兼容性

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

• Desktop
• Mobile

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)

Feature	Android	Chrome for Android	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
Basic support	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)

相关链接

• 全局对象 NaN
• Number