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<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>
(version: 0)
Comparing performance of:
isEqual vs stringify
Created:
5 years ago
by:
Guest
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HTML Preparation code:
window.foo = {'cat': 'cat', 'dog': 'dog', 'bird': 'bird'}; window.foo = {'cat': 'cat', 'dog': 'dog', 'bird': 'bird'};
Tests:
isEqual
_.isEqual(window.foo, window.bar)
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
stringify
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided Benchmark Definition json and explain what is tested, compared options, pros/cons, library usage, special JS features, and other considerations. **Benchmark Overview** The benchmark measures the performance of two JavaScript operations: 1. `isEqual` (using Lodash's `_.isEqual` function) 2. `stringify` (by comparing the stringified output of two objects using `JSON.stringify`) **Options Compared** The benchmark compares two options for each test case: 1. **Lodash-based `isEqual`**: Uses the popular Lodash library to compare two objects. 2. **Built-in comparison**: Does a simple comparison between two objects without any additional libraries. **Pros and Cons of Each Approach** **Lodash-based `isEqual`:** Pros: * More robust and accurate comparison (handles deeper object structures, circular references, etc.) * Less prone to human error Cons: * Requires the Lodash library to be included in the benchmark * May introduce additional overhead due to the library's initialization and usage Built-in comparison: Pros: * No additional libraries required * Faster execution times, as it's a simple operation Cons: * May not handle complex object structures or circular references correctly * More prone to human error **Other Considerations** * The benchmark uses the `window.foo` and `window.bar` objects to compare, which are defined in the `Html Preparation Code`. * The `JSON.stringify` method is used to serialize the objects before comparison. This can affect performance if the resulting stringified output is large. * The benchmark runs on a Chrome 88 browser on a Mac OS X 10.15.7 platform. **Library Usage** The Lodash library is used in the `Benchmark Definition` json for the `isEqual` test case. Lodash provides a robust and accurate way to compare objects, handling deeper structures and circular references. **Special JS Features** None are explicitly mentioned in this benchmark. **Alternatives** For alternative approaches, you could consider using: 1. **Built-in `JSON.stringify` comparison**: Instead of relying on the Lodash library for equality checks, use a built-in JavaScript function like `JSON.stringify` to compare objects. 2. **Other equality checking libraries**: There are other equality checking libraries available, such as `fast-equal` or `deep-equal`, that could be used in place of Lodash. 3. **Native JavaScript comparison operators**: Some modern browsers support native JavaScript comparison operators for arrays and objects (e.g., `[a, b] === [c, d]`). However, these may not work across all platforms and browsers. Keep in mind that the choice of approach ultimately depends on your specific requirements, performance constraints, and personal preference.
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