compare two javascript objects for changes code example

Example 1: Getting the differences between two objects javascript lib

import { transform, isEqual, isObject } from 'lodash';

/**
 * Deep diff between two object, using lodash
 * @param  {Object} object Object compared
 * @param  {Object} base   Object to compare with
 * @return {Object}        Return a new object who represent the diff
 */
function difference(object, base) {
	return transform(object, (result, value, key) => {
		if (!isEqual(value, base[key])) {
			result[key] = isObject(value) && isObject(base[key]) ? difference(value, base[key]) : value;
		}
	});
}

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)
});