Object Type Conversion Javascript

Question

I am learning Javascript. I am trying to convert Object. While trying to convert it's only printing Number not string. while printing string it shows complete object not string. Below is my code.

let user2 = {
 name: "Akash",
 surName: "Jangra",
 age: 30,
 Salary: 25000,
 [Symbol.toPrimitive](hint) {
 console.log(`hint : ${hint}`);
 return hint == "string" ? `{name: "${this.name}"}, ${this.surName}` : this.Salary;
 }
};
console.log(user2);
console.log(+user2);
console.log(user2 + 500);

Answer 1

Try

console.log(`${user2}`);

When you do

console.log('' + user2);

Hint equals default

You have to 'tell' JavaScript what to convert to explicitly. Examples:

var x = { test: 1 };
// Console log the object
console.log(x);
// Try to convert to number
console.log(0 + x);
// Try to convert to string
console.log(`${x}`);
// I thought this would work as wel, but is does not convert to 'string' but to 'default'
console.log('' + x);
// Try to bool
console.log(!!x);

Edit: Like ezotos said. This is really uncommon to do in javascript though.

Answer 2

This is actually a very uncommon practice. Object in JavaScript are usually keep primitive. Thus, only containing data.

I would suggest to create a function that takes your source object as an argument and returns the desired output.

If you need the functionality in such an object, think about using a class instead.

And overload the toString() method for example.