<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>
window.foo = {animal: 'cat', age: 12, breed: 'Chihuahua'};
window.bar = {animal: 'cat', age: 12, breed: 'Chihuahua'};
_.isEqual(window.foo, window.bar)
JSON.stringify(window.foo) === JSON.stringify(window.bar);
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
_.isEqual | |
JSON.stringify |
Test name | Executions per second |
---|---|
_.isEqual | 407243.9 Ops/sec |
JSON.stringify | 622339.1 Ops/sec |
Let's break down what's being tested in the provided JSON benchmark.
What is being tested?
The benchmark is comparing the performance of two approaches:
isEqual
function: This function is used to compare two objects for equality, considering both value and reference.Options compared:
isEqual
vs standard JavaScript object comparison (using JSON strings)Pros and Cons of each approach:
isEqual
:Library usage:
The benchmark uses the Lodash library, which is a popular utility library for JavaScript that provides a set of helper functions for various tasks, including object manipulation. In this case, the isEqual
function is used as the basis for comparison.
Special JS feature or syntax:
There are no special features or syntax mentioned in the benchmark definition or test cases.
Benchmark preparation code and HTML preparation code:
The Script Preparation Code
section defines two global objects (window.foo
and window.bar
) with similar properties, which will be used as input for the comparison. The Html Preparation Code
includes a script tag that loads the Lodash library (version 4.17.4), which is used by the isEqual
function.
Alternative approaches:
Other alternatives for comparing object equality could include:
Object.is()
or Object.compare()
Keep in mind that the choice of approach depends on specific requirements and constraints, such as performance, scalability, and maintainability.