js对象的方法有哪些（js删除table指定行）

一、javascript的对象创建的方法

javascript可以直接创建对象，只须用 {}：

let javascriptobject = {};
let testarray = [1, 2, 3, 4];

javascriptobject.array = testarray;
console.log(javascriptobject); /// {array: [1,2,3,4]}/

javascriptobject.title = "algorithms";
console.log(javascriptobject); // { array: [ 1, 2, 3, 4 ], title: 'algorithms' }

二、原型继承prototypal-inheritance

创建的方式也简单：

function exampleclass() {
  this.name = "javascript";
  this.sayname = function () {
    console.log(this.name);
  };
} ///new object/

var example1 = new exampleclass();
example1.sayname(); ///"javascript"/

也可以用添加原型的方式：

function exampleclass(){
     this.array = [1,2,3,4,5];
     this.name = "javascript";
 }

 ///new object/
 var example1 = new exampleclass();

 exampleclass.prototype.sayname = function() {
     console.log(this.name);
 }

 example1.sayname(); ///"javascript"/

三、构造器与变量

建设构造器和变量：

function exampleclass(name, size){
     this.name = name;
     this.size = size;
 }

var example = new exampleclass("public",5);
 console.log(example); /// {name:"public", size: 5}/

 /// accessing public variables/
 console.log(example.name); /// "public"/
 console.log(example.size); /// 5/

也可以仿制一个privat-property.

function exampleclass(name, size) {
     var privatename = name;
     var privatesize = size;

     this.getname = function() {return privatename;}
     this.setname = function(name) {privatename = name;}

     this.getsize = function() {return privatesize;}
     this.setsize = function(size) {privatesize = size;}
 }

 var example = new exampleclass("sammie",3);
 example.setsize(12);
 console.log(example.privatename); /// undefined/
 console.log(example.getname()); /// "sammie"/
 console.log(example.size); /// undefined/
 console.log(example.getsize()); /// 3/