CODEWITHSUNDEEP
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AfterWorkGuinness
AfterWorkGuinness

Reputation: 1850

Why are functions assigned to variables in Angular

Simple question about syntax. In Angular, I've seen functions inside a controller created like this:

this.multiply = function multiply(a, b) {
    return a * b; 
}

I'm a bit thrown of since the function is given a name and also assigned to a variable with. So my question is why are functions assigned to variables in Angular? Does this affect scope?

Upvotes: 0

Views: 1010

Answers (2)

Chandermani
Chandermani

Reputation: 42669

This is standard JavaScript and this is called Named function Expression.

By using this you are defining it on controller. If you use controlleras syntax in views or while defining routes you can use such functions as well as any properties defined on this.

Earlier versions of Angular only employed $scope and everything had to be defined on $scope.

Now the controller itself is instantiated on scope depending upon controller name alias in controlleras

Upvotes: 3

Daniel A. White
Daniel A. White

Reputation: 190956

It isn't assigning it to a variable. It is assigning it to the instance of the controller, with this; so whoever has an instance of the controller can call it.

Upvotes: 1

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