JavaScript object-oriented (2)_javascript skills

There was too much nonsense written in the previous article and it was poorly written. Let’s talk about inheritance this time. We knew the prototype in the previous section. Now I start from the prototype to implement the method


function occupation(){
var Notes="Go to work every day";
}
occupation.prototype.work=function(name){
return name "Go to work" ;
}
occupation.prototype.off duty=function(){
return "off duty";
}
Function.prototype.extend=function(superClass){
for(var $p in superClass.prototype){
this.prototype[$p]=superClass.prototype[$p];
}
delete $p;
}
function actor(){
}
Actor.prototype.On TV=function(person){
return person "On TV";
}
function clown(){
}
Clown. prototype.line=function(){
return "Exaggerated smile";
}

Actor.extend(occupation);

var Zhang San=new Actor();

alert(Zhang San. go to work("Zhang San"));

clown.extend(actor);

var Xiaozhuo=new clown();

alert(Xiao Zhuo. Work("Xiao Zhuo"));

alert(Xiao Zhuo. Outfit());

alert(Xiao Zhuo. Go to TV("Xiao Zhuo. Zhuo's show"));
//-->
īpt>


Just wrote a small example of inheritance.

In this way, it is a bit absurd to do this without considering the parent class method and the subclass method. Let me write this

first, and then write later.