jsdelete用法(删除对象属性及变量)_javascript技巧
来源：动视网
责编：小采
时间：2020-11-27 21:26:28
jsdelete用法(删除对象属性及变量)_javascript技巧
jsdelete用法(删除对象属性及变量)_javascript技巧:1,对象属性删除 function fun(){ this.name = 'mm'; } var obj = new fun(); console.log(obj.name);//mm delete obj.name; console.log(obj.name); //undefined 2,变量删除 var name = 'lily'; d
导读jsdelete用法(删除对象属性及变量)_javascript技巧:1,对象属性删除 function fun(){ this.name = 'mm'; } var obj = new fun(); console.log(obj.name);//mm delete obj.name; console.log(obj.name); //undefined 2,变量删除 var name = 'lily'; d
1,对象属性删除
function fun(){
this.name = 'mm';
}
var obj = new fun();
console.log(obj.name);//mm
delete obj.name;
console.log(obj.name); //undefined2,变量删除
直接用delelte删除不了变量
3,删除不了原型链中的变量
jsdelete用法(删除对象属性及变量)_javascript技巧
jsdelete用法(删除对象属性及变量)_javascript技巧:1,对象属性删除 function fun(){ this.name = 'mm'; } var obj = new fun(); console.log(obj.name);//mm delete obj.name; console.log(obj.name); //undefined 2,变量删除 var name = 'lily'; d
