JavaScript variable Objects

Question

I am very much new to Javascript please correct my code or suggest the best option

var myApp = {};

myApp.set = function(VAL) {
    myApp.id = VAL;    
}

myApp.get = function() {
    return myApp.id; 
}

function PageLoad() {
    var X = new myApp;
    var Y = new myApp;

    Y.set(20);
    X.set(10);

    alert(X.get());
    alert(Y.get());
}

It shows last assign value only i.e. 10 :(

Thanks in Advance Manoj

Are you sure that's your code as I'm getting the error Uncaught TypeError: myApp is not a constructor. — George
– George, Commented Jul 26, 2017 at 6:56
I guess there is a typo, it should be var X= new myApp() (parenthesis) — Pablo Lozano
– Pablo Lozano, Commented Jul 26, 2017 at 7:04
This cannot be your actual code because this code does not run. Please show us your actual code, otherwise this question needs to be closed as invalid. — jfriend00
– jfriend00, Commented Jul 26, 2017 at 7:04
@Pablo, no, the parentheses are not required, when used with new operator. — Nina Scholz
– Nina Scholz, Commented Jul 26, 2017 at 7:22
@NinaScholz Wow, years writing JS code without knowing that... Thank you! — Pablo Lozano
– Pablo Lozano, Commented Jul 26, 2017 at 7:44

KARAN LAGALWAR · Accepted Answer · 2017-07-26 07:01:37Z

1

@Manoj Chavanke Sir Please use this code

 function myApp(){
    }
    myApp.prototype.set = function(VAL) {
        this.id = VAL;    
    }

    myApp.prototype.get = function() {
        return this.id; 
    }

    function PageLoad() {
        var X = new myApp; console.log(X);
        var Y = new myApp; console.log(Y);

        Y.set(20);
        X.set(10);

        alert(X.get());
        alert(Y.get());
    }
    PageLoad();

answered Jul 26, 2017 at 7:01

KARAN LAGALWAR

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1 Comment

Manoj Chavanke Over a year ago

Thank you very much Karan, Could you please help me to write same code Using Object Literal Notation??

Sanket Dorle · Accepted Answer · 2017-07-26 08:52:07Z

0

I think You override the value myApp.id = VAL;

try this code

 var myApp = [];
myApp.set = function(VAL) {
    myApp.push({id : VAL});
}

instate of

var myApp = {};

myApp.set = function(VAL) {
    myApp.id = VAL;    
}

Because the key is a unique you can't use twice.

answered Jul 26, 2017 at 8:52

Sanket Dorle

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