已废弃
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.
概述
返回一个函数的形参数量.
描述
arity
是一个古老的已经没有浏览器支持的属性,你应该使用Function.prototype.length
属性来代替.
已废弃
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.
返回一个函数的形参数量.
arity
是一个古老的已经没有浏览器支持的属性,你应该使用Function.prototype.length
属性来代替.