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lodash (split + join) vs lodash (replace) vs Vanilla JS (split + join) vs Vanilla JS (replace)
(version: 0)
Comparing performance of:
lodash (split + join) vs lodash (replace) vs Vanilla Js (split + join) vs Vanilla Js (replace)
Created:
3 years ago
by:
Guest
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HTML Preparation code:
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>
Tests:
lodash (split + join)
const status = "ACCEPTED_ON_AUDIT"; for ( let i = 0; i < 100000; i++) { _.capitalize(status).split("_").join(" ") }
lodash (replace)
const status = "ACCEPTED_ON_AUDIT"; for (let i = 0; i < 100000; i++) { _.capitalize(status).replace(/_/g, ' '); }
Vanilla Js (split + join)
const status = "ACCEPTED_ON_AUDIT"; for ( let i = 0; i < 100000; i++) { status[0].toUpperCase() + status.slice(1).toLowerCase().split("_").join(" "); }
Vanilla Js (replace)
const status = "ACCEPTED_ON_AUDIT"; for ( let i = 0; i < 100000; i++) { status[0].toUpperCase() + status.slice(1).toLowerCase().replace(/_/g, ' '); }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (4)
Previous results
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Test case name
Result
lodash (split + join)
lodash (replace)
Vanilla Js (split + join)
Vanilla Js (replace)
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of JavaScript microbenchmarks! **Benchmark Definition** The benchmark measures the performance of three different approaches to splitting and joining strings in JavaScript: 1. `_.capitalize` and `split` with Lodash library 2. `_replace` method with Lodash library 3. Manual approach using vanilla JavaScript (`status[0].toUpperCase() + status.slice(1).toLowerCase().split(" ")`) **Options Compared** The benchmark compares the performance of two approaches for each test case: * With Lodash library: + `_.capitalize` and `split` + `_replace` * Without Lodash library: + Manual approach using vanilla JavaScript (`status[0].toUpperCase() + status.slice(1).toLowerCase().split(" ")`) **Pros and Cons** Here's a brief summary of the pros and cons of each approach: With Lodash library: * Pros: + Simplified code + Fewer lines to write + Potential performance benefits due to optimized algorithms * Cons: + Additional dependency (Lodash) + May introduce overhead due to library loading Without Lodash library: * Pros: + No additional dependencies + Faster execution due to fewer lines of code * Cons: + More complex code + Potential performance issues if not optimized correctly **Library: Lodash** Lodash is a popular JavaScript utility library that provides a wide range of functions for various tasks, including string manipulation. The `_capitalize` and `_replace` methods are part of the Lodash library. The `_.capitalize` method capitalizes the first character of a string, while the `_replace` method replaces all occurrences of a substring with another substring. **Special JavaScript Features or Syntax** There are no special JavaScript features or syntax used in this benchmark. The code uses standard JavaScript syntax and libraries (Lodash). **Other Considerations** When writing performance benchmarks like this one, it's essential to consider the following: * Code complexity: Simpler code tends to be faster due to fewer lines of execution. * Dependency overhead: Loading external libraries can introduce additional latency. * Testing consistency: Make sure to test each approach consistently with the same input data and settings. **Alternatives** If you want to write your own microbenchmarking tool, consider using libraries like: * **Benchmark.js**: A popular JavaScript benchmarking library that provides a simple API for writing benchmarks. * **Mathjs**: A mathematical expression evaluator that can be used for performance testing. Keep in mind that the choice of alternative tools depends on your specific needs and requirements.
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