Question

44

array as data member in a class javascript

rated 0 times [ 49] [ 5] / answers: 1 / hits: 37344 / 10 Years ago, sat, november 8, 2014, 12:00:00

I am new one in object oriented javascript and trying to define a class, that have an array as a data member. this data member of class storing objects of an other class as an array.

it will be more clear by this example

function classA(id, objB_01)

{



    this.id = id;   // data member that store a simple value

    this.arrayname = objB_01  // How multiple instance of classB is stored in this array 





}



function classB( id, name, status)

{

     this.id = id;

     this.name = name;

     this.status = status 

}



objB_01 = new classB(01, john, single);

objB_02 = new classB(02, smith single);

objB_03 = new classB(03, nina, married);

now my question is how i can write classA so that single instance of classA hold an array that store mutiple object of classB

Something like this

objA = new classA(01,objB_01);

objA.arrayname = objB_02;

objA.arrayname = objB_03;

Now Finally objA contain one string and one array that store multiple objects of classB

Please point me in the right direction

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manuel

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3 Years ago

answered 10 Years ago mckinley · Accepted Answer

One option can be to initialize an empty array in the constructor function and also have some method to add objects to the array.

function classA (id) {

    this.id = id;

    this.array = [];



    this.add = function (newObject) {

        this.array.push(newObject);

    };

}

Then you can do this:

objA = new classA(01);

objA.add(objB_01);

objA.add(objB_02);

objA.add(objB_03);