ReactJS - Object Comparison

isObjectEqual.js

// from https://medium.com/@nesbtesh/react-best-practices-a76fd0fbef21

export const isObjectEqual = (obj1, obj2) => {
    if(!isObject(obj1) || !isObject(obj2)) {
        return false;
    }

    if (obj1 === obj2) {
       return true;
    }

   const item1Keys = Object.keys(obj1).sort();
   const item2Keys = Object.keys(obj2).sort();

   if (!isArrayEqual(item1Keys, item2Keys)) {
        return false;
   }
   return item2Keys.every(key => {
       const value = obj1[key];
       const nextValue = obj2[key];

       if (value === nextValue) {
           return true;
       }
       return Array.isArray(value) &&
           Array.isArray(nextValue) &&
           isArrayEqual(value, nextValue);
   });
};