how copare 2 values in the same object code example

Example 1: Javascript compare two objects

var person1={first_name:"bob"};
var person2 = {first_name:"bob"}; 

//compare the two object
if(JSON.stringify(person1) === JSON.stringify(person2)){
    //objects are the same
}

Example 2: javascript objet keys comparaison

var myString = "Item1";

var jsObject = 
{
    Item1:
    {
        "apples": "red",
        "oranges": "orange",
    },
    Item2:
    {
        "bananas": "yellow",
        "pears": "green"
    }
};

var keys = Object.keys(jsObject); //get keys from object as an array

keys.forEach(function(key) { //loop through keys array
  console.log(key, key == myString)
});