CODEWITHSUNDEEP
javascriptobject
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Reputation: 15692

What does this javascript code mean?

function myFunc(theObject) {  
      theObject = new TheObject("Ford","Focus",2006);  
}

Why is new TheObject() used instead of something like new Object()? I don't understand.

Upvotes: -1

Views: 157

Answers (4)

NickAldwin
NickAldwin

Reputation: 11754

Here, TheObject is the type of object (class) which "theObject" is. The function with the same name as the type is called a constructor. Calling it constructs a new object of that type. (e.g. for a TheObject type, new TheObject() creates a new object of the type TheObject)

Think of it this way: The function below makes myAuto a new Car object (of type "Car"):

function myNewFunc(myAuto) {
  myAuto = new Car("Audi","TT",2001);
}

(It's possible the "Object" vs "TheObject" vs "theObject" terminology is confusing you. Where are you getting this sample code?)

Upvotes: 2

hazelmouse
hazelmouse

Reputation: 381

For the code you posted to work, somewhere else on the same page has to be something like the following:

var TheObject = function(make, model, year) {
  this.make = make;
  this.model = model;
  this.year = year;
}

Then, your posted code will create a new object with properties defined by the TheObject function. (In the above example, you could access the make of your new object by referencing theObject.make.)

Upvotes: 3

Samet Atdag
Samet Atdag

Reputation: 1002

TheObject is a user defined object.

Upvotes: 3

Nick Craver
Nick Craver

Reputation: 630637

There's a function TheObject(...) "class" somewhere this is creating that occurs before this in your included code, that's what it's creating.

Upvotes: 4

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