Call class method in the Array.map()

Question

This is what I want to have:

function MyClass() {
   this.some = new Array();
   this.another = new Array();
}

MyClass.prototype.some_method = function(element) {
   // some work with this.some
}

MyClass.prototype.another_method = function() {
   this.another.map(function(el) {
     this.some_method(el);   // error code
   });
}

But I get error with it:

Uncaught TypeError: Object [object Window] has no method 'empty_cell'

Is it possible to call MyClass methods in the anonymous function?

Yoshi · Accepted Answer · 2012-08-14 10:48:36Z

4

You can pass this scope as a second parameter to the map function, like this:

MyClass.prototype.another_method = function() {
   this.another.map(function(el) {
     this.some_method(el);
   }, this); // added this
}

edited Aug 14, 2012 at 10:48

Yoshi

54.8k14 gold badges93 silver badges108 bronze badges

answered Aug 14, 2012 at 10:46

servik

3,1114 gold badges31 silver badges37 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Call class method in the Array.map()

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related