JSFiddle - React, Tailwind, and code Playground

by jesus_tesh

JavaScript

var a = {
    1: 'foo',
    2: 'bar'
};

var b = {
    3: 'Hello',
    4: 'World'
};

function merge(a, b) {
    for (var key in b) {
         a[key] = b[key];   
    }
    
    return a;
}

console.log("a", merge(a, b));