JSON.stringify()
This method converts objects into JSON strings and then compares these strings. This method effective only if the objects have the same properties in the same order.
Syntax:
JSON.stringify(obj1) === JSON.stringify(obj2);
Example: To demonstrate comparing the JavaScript object using the JSON.stingfy().
const obj1 = { a: 1, b: 2 };
const obj2 = { a: 1, b: 2 };
console.log(JSON.stringify(obj1) === JSON
.stringify(obj2));
Output:
true
How to Compare Objects in JavaScript?
In JavaScript, comparing objects is not as simple as comparing numbers or strings. Objects are compared based on their memory references, so even if two objects have the same properties and values, they are considered distinct if they are stored in different memory locations.
Below are the various approaches to compare objects in JavaScript:
Table of Content
- Equality (===)
- JSON.stringify()
- Lodash Library
- Object.entries()
- Object.keys()