✨课程链接

✨学习笔记

内部对象

Date

var date = new Date(); date.getFullYear() date.getMonth() // 0-11 date.getDate() date.getDay() // 星期几 date.getHours() date.getMinutes() date.getSeconds() date.getTime() // 时间戳  console.log(new Date(date.getTime())) console.log(date.toLocaleString())

JSON

var user = {     name:"user",     age:"3", }  var jsonUser = JSON.stringify(user); console.log(jsonUser)  var stringUser = JSON.parse('{"name":"user","age":"3"}') console.log(stringUser)

Ajax

原生js写法 xhr异步请求
JQuery封装好的方法 $("#name").ajax("")
axios请求

原型对象

<!DOCTYPE html> <html lang="en"> <head>     <meta charset="UTF-8">     <title>Title</title> </head>      <script>         var Student = {             name:"student",             age:"3",             run:function () {                 console.log(this.name + " run...")             }         }          var temp = {             name:"temp"         }          temp.__proto__ = user         temp.run()      </script>  <body>  </body> </html>

class继承

<!DOCTYPE html> <html lang="en"> <head>     <meta charset="UTF-8">     <title>Title</title>      <script>         function Student(name){             this.name = name         }         // 新增方法         Student.prototype.hello = function () {             alert("Hello")         }          // ES6 之后         // 定义一个Student类         class Student{             constructor(name) {                 this.name = name             }             hello(){                 alert("Hello")             }         }         var student = new Student("test");         console.log(student.name)         student.hello()          class CollegeStudent extends Student{             constructor(props, grade) {                 super(props);                 this.grade = grade             }              printGrade(){                 alert(this.grade)             }          }     </script>  </head> <body>  </body> </html>

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本文作者：双份浓缩馥芮白

原文链接：https://www.cnblogs.com/Flat-White/p/15026129.html

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