What is the reason behind JavaScript not permitting methods as object key/value pairs?

While experimenting with JavaScript, I encountered a syntax error. My attempt was to assign an object key with a value returned from a method.

var a = new function(){
    this.b = function()
    {
        return "c";
    }
};


var myobj = {
   a.b:"d" //This line triggers a syntax error
};

The above snippet will generate an error message; however, surprisingly, the following code is allowed in JavaScript:

var n = a.b;

var myobj = {
   n:"d" //No error thrown here
};

Even though both typeof a.b and typeof n indicate that they are functions?

Answer №1

It may appear peculiar, but I presume you are seeking a certain outcome if you were to log myobj.c. Utilizing ES6, you have the ability to achieve this in the following manner:

var x = function(){
    this.y = function()
    {
        return "z";
    }
};


var obj = {
   [x.y()]:"w" 
};

console.log(obj.c); // w

The question remains - what purpose does this serve?

Answer №2

Is your approach similar to this?

let newObj = {
   "x": y.z
};

Are you then calling newObj.x() or has someone else already suggested another solution?

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