instanceof实现
function myInstanceOf(left,right){ let proto = left.__proto__ let prototype = right.prototype while(true){ if(proto === null){ return false } if(proto === prototype){ return true } proto = proto.__proto__ } }
const myInstanceOf = (left = {}, right = Object) => { let proto = left.__proto__ while(proto){ if(proto === right.prototype) return true proto = proto.__proto__ } return false }
以自己现在的努力程度,还没有资格和别人拼天赋