METHOD: Function::call
Function.call(thisArg[, arg1[, arg2[, ...]]])
The call method allows you to call a method from another object.
This means you only need to write an object once and just apply it to any other
objects that make use of it.
The following example first creates an object called
Car which has three properties. Then a second object is created called HireCar which
(beside others) also has those same properties. So, instead of having to rewrite those
properties, the HireCar object uses the call method to inherit them from the Car
object. Note that that you can assign a different this object when calling an existing
function.
Code:
function car(make, model, year)
{this.make = make, this.model = model, this.year = year}
function hireCar(carNo, make, model, year)
{this.carNo = carNo, car.call(this, make, model, year)}
NOTE
The call method is very similar to the
apply method, but differs in that with call you cannot have
the now deprecated arguments array as one of its parameters.
Copyright 1999 by Infinite Software Solutions, Inc.
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