JavaScript Return multiple values from function

To return multiple values from a function, you can pack the return values as elements of an array or as properties of an object. This approach allows functions to efficiently produce and deliver diverse sets of values, enhancing flexibility and versatility in JavaScript programming.

Below are the approaches used in JavaScript to Return multiple values from a function:

Approach 1: Using Array

The approach of using an array to return multiple values from a JavaScript function involves organizing the values into an array and then utilizing array destructuring to extract and assign those values to individual variables.

Example: This example returns the array ["GFG_1", "GFG_2"] containing multiple values. 

function set() {
    return ["GFG_1", "GFG_2"];
}

let [x,y] = set();

console.log(x);
console.log(y);

GFG_1
GFG_2

Approach 2: Using an object

The approach of using an object to return multiple values from a JavaScript function involves organizing the values into key-value pairs within an object.

Example: This example returns the object return {Prop_1: "Value_1", Prop_2: "Value_2" }; containing multiple values. 

function set() {

    return {
        Prop_1: "Value_1",
        Prop_2: "Value_2"
    };
}

console.log(set);

function returnVal() {
    let val = set();
    console.log("Prop_1 = " + val['Prop_1']
        + "Prop_2 = " + val['Prop_2']);
}
returnVal()

[Function: set]
Prop_1 = Value_1Prop_2 = Value_2