Number.NaN

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,可使用 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. Implemented in JavaScript 1.1 Standard Initial definition.
ECMAScript 5.1 (ECMA-262)
Number.NaN
Standard  
ECMAScript 6 (ECMA-262)
Number.NaN
Release Candidate  

浏览器兼容性

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

 

  • The global NaN object.
  • The Number object it belongs to.

文档标签和贡献者

向此页面作出贡献: teoli, AlexChao, zhangyaochun1987
最后编辑者: teoli,