JS Basic _this

1 <!DOCTYPE HTML>2 <HTML>3     <Head>4         <MetaCharSet= "UTF-8">5         <title></title>6         <Scripttype= "Text/javascript">7         8             /*9 * The parser passes an implicit argument to the inside of the function each time the function is called.Ten * This implied argument is that This,this is pointing to an object, One * This object we call the context object for function execution A              *      - * Depending on how the function is called, this will point to a different object - * 1. When called as a function, this is always the window the * 2. When called in the form of a method, this is the object that invokes the method -              */ -              -              +             functionFun () { - Console.log ( This);//[Object Window] +             } A               at Fun (); -              -             //----------------------------------------------------------------------------------- -              -             functionfun2 () { - Console.log ( This); in Console.log ( This. Name);//Monkey King -             } to              +              -             //Create an Object the             varobj= { * Name:"Monkey King", $ sayname:fun2Panax Notoginseng             }; -              the Console.log (Obj.sayname==fun2);//true +              A             //the same function is called, but the result is different, depending on how the function is called, this will point to a different object the obj.sayname ();//[Object Object] +              - fun2 ();//[Object Window] $              $               -              -         </Script> the     </Head> -     <Body>Wuyi     </Body> the </HTML>

JS Basic _this