函数 isNative

isNative(value): boolean

判断是否内置方法

参数

value: unknown

返回 boolean

示例

isNative(Array.prototype.forEach); // true
isNative(Array.prototype.map); // true
const map = Array.prototype.map;
isNative(map); // true
isNative(() => {}); // false
isNative(Object.assign); // true
isNative(Object); // true
isNative(Boolean); // true
isNative(window.isNaN); // true
isNative(isNaN); // false