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Lodash.isEqual vs JSON.stringify Equality Comparison for Shallow Object of Strings.
(version: 0)
Test on isEqual performance
Comparing performance of:
_.isEqual vs JSON.stringify
Created:
one year ago
by:
Guest
Go to the latest result
HTML Preparation code:
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js"></script>
Script Preparation code:
window.foo = {a:'cat', b:'dog', c:'bird'}; window.bar = {a:'cat', b:'dog', c:'bird'};
Tests:
_.isEqual
_.isEqual(window.foo, window.bar)
JSON.stringify
JSON.stringify(window.foo) === JSON.stringify(window.bar);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
_.isEqual
JSON.stringify
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36
Browser/OS:
Chrome 118 on Windows
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=555820" width="100%" height="500px"></iframe>
_.isEqual
800K/s
JSON.stringify
694K/s
View exact numbers
Test name
Executions per second
✓
_.isEqual
800,268 Ops/sec
JSON.stringify
693,608 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the benchmark and explain what's being tested. **Overview** The benchmark compares the performance of two approaches: using Lodash's `isEqual` function versus manually comparing two objects using `JSON.stringify`. **What is being compared?** The test case "_.isEqual" measures how fast Lodash's `isEqual` function compares two shallow objects (`window.foo` and `window.bar`). The objects have string values for their properties. On the other hand, the test case "JSON.stringify" checks how fast manually comparing the two objects using `JSON.stringify` returns equal results. This approach converts both objects to strings and then compares them using the `===` operator. **Options compared** 1. **Lodash's isEqual function**: This approach uses a custom implementation to compare two objects recursively, considering their properties, types, and values. 2. **Manual comparison with JSON.stringify**: This approach manually converts both objects to strings using `JSON.stringify` and then compares the resulting strings using the `===` operator. **Pros and Cons of each approach** 1. **Lodash's isEqual function**: * Pros: More efficient and accurate, especially for complex objects or deep comparisons. * Cons: Adds an external dependency (Lodash), which may slow down page load times. 2. **Manual comparison with JSON.stringify**: * Pros: No external dependencies, simple to implement. * Cons: Less efficient and less accurate than `isEqual`, as it only compares property values using `===`. **Other considerations** 1. **Library usage**: The test uses Lodash's `isEqual` function, which is a popular utility library for JavaScript. 2. **JavaScript feature syntax**: None mentioned in the benchmark definition. **Alternatives** If you wanted to compare these approaches without using Lodash, you could: * Use a custom implementation of `isEqual` using only built-in JavaScript methods and data structures (e.g., `Object.keys()`, `Array.prototype.every()`). * Use a different library for comparing objects, such as `lodash-es` or `fast-json-stable-stringify-compare`. * Implement the manual comparison approach without using `JSON.stringify`, e.g., by using a recursive function to compare property values. Keep in mind that these alternatives may have different trade-offs in terms of performance, accuracy, and simplicity.
Related benchmarks
Lodash.isEqual vs JSON.stringify Equality Comparison for Shallow Array of Strings.
Lodash.isEqual vs JSON.stringify Equality Comparison for Shallow Array of Strings when comparison is not equal.
Lodash.isEqual vs JSON.stringify Equality Comparison for Shallow Array of Strings. Lodash v 4.17.11
Lodash.isEqual vs JSON.stringify Equality Comparison for deep objects.
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