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运行结果.js
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运行结果.js
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{
let Fun1 = function () {
this.name = 'peter'
return {
name: 'jack'
}
}
let p = new Fun1()
// jack
console.log(p.name)
}
{
let fun = function () { }
fun.prototype = {
info: {
name: 'peter',
age: 25
}
}
let a = new fun()
let b = new fun()
a.info.name = 'jack'
b.info.name = 'tom'
// tom tom,两个对象指向同一个内存地址
console.log(a.info, b.info)
}
{
let fun = function () {
this.name = 'peter'
return 'jack'
}
console.log(new fun().name)
}
{
let fun = function () {
this.info = {
name: 'peter',
age: 25
}
}
let a = new fun()
let b = new fun()
a.info.name = 'jack'
b.info.name = 'tom'
console.log(a.info, b.info)
}
{
let fun = function () {
this.info = {
name: 'peter',
age: 25
}
}
fun.prototype = {
info: {
name: 'peter',
age: 25
}
}
let a = new fun()
let b = new fun()
a.info.name = 'jack'
b.info.name = 'tom'
console.log(a.info, b.info)
}
{
let fun = function () { }
fun.prototype = {
name: 'peter'
}
let a = new fun()
let b = new fun()
a.name = 'jack'
b.name = 'tom'
console.log(a.name, b.name)
}