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Javascript class


xenophobia

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function MyClass(){
this.filename = "Hello World";

this.myfunc = function(){
	var my = function(){
		alert(this.filename);
	}

	my();
}
}

 

So this is the class. Then I create an object of this class:

o = new MyClass();
o.myfunc();

 

Will alert undefined. The problem is the variable scope. It cant get the 'filename' within the class.

This will work:

this.myfunc = function(){
     alert(this.filename);
}

 

It can't access the second level of in the function. Any helps?

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My question is why are you over complicating the function declaration? You could simply do this:

function MyClass(){
  this.filename = "Hello World";

  this.myfunc = function(){
    alert(this.filename);
  }
}

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