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JavaScript

Posted by shobha gunupuru
shobha gunupuru
1,137 Points

how to access the method that is inside the method of a object.

var app = app || {}; app.common = { setImageAttributes: function() { //alert('set attributes now working');

var imgAttr= { height:50, source:"x", populateAttr: function () { //return this.height+ " " + this.source; alert('this is working');

}

}

}, bindUIelements() { // alert('now working'); this.setImageAttributes(); },

init: function() { this.bindUIelements(); },

};

app.common.setImageAttributes();

"how to get the populateAttr return"

1 Answer

Stephan Olsen
Stephan Olsen
6,650 Points
Stephan Olsen
Stephan Olsen
6,650 Points

I've cleaned up your code a bit:

let app = {};
app.common = {
    setImageAttributes: function()    {
        // alert('set attributes now working');

        const imgAttr =
            {
                height:50,
                source:"x",
                populateAttr: function () {
                    return this.height+ " " + this.source;
                    // alert('this is working');
                }
            }

    }, bindUIelements() {
        // alert('now working');
        this.setImageAttributes();
    },

    init: function() {
        this.bindUIelements();
    }

};

app.common.setImageAttributes();

The problem you're running into, is that you're trying to access a function within a variable that hasn't been set when you call the outer function. Once you call setImageAttributes, it will create the variable imgAttr, which is only accessible within the scope, since this is where it's declared. If you want to call this function, you must call it within the scope, after the variable is declared, so something like this:

let app = {};
    setImageAttributes: function()    {
        // alert('set attributes now working');

        const imgAttr =
            {
                height:50,
                source:"x",
                populateAttr: function () {
                    return this.height+ " " + this.source;
                    // alert('this is working');
                }
            }
        imgAttr.populateAttr();
    }.....
.....