CODEWITHSUNDEEP
javascriptobject
Pranab
Pranab

Reputation: 305

Get the Object name in JavaScript

I have a simple object called "obj1".

let obj1 = {
    x: 1,
    y: 5,
    meth: function() {
        return `The result of the ${this} is ${this.x+this.y}`;
    }
};

in console, it print

The result of the [object Object] is 6;

I want to get the Object name, which is obj1 but it gives me [object Object]. I tried this.name but it's showing undefined.

Upvotes: 1

Views: 122

Answers (1)

T.J. Crowder
T.J. Crowder

Reputation: 1073968

I want to get the Object name, which is "obj1"

No, it isn't. Objects don't have names. Your variable's name is obj1, but the object's isn't.

There is no practical way for obj1.meth to know the name of that variable (other than the programmer hardcoding it, since of course the programmer knows the name). That information just isn't provided to meth. Note that it would be context-sensitive information:

let obj1 = { /*...*/ };
let obj2 = obj1;
obj2.meth(); // Should say...what? "obj1"? "obj2"?
             // (doesn't matter, it can't say either)

Upvotes: 6

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