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lodash .foreach vs native foreach vs native for loop
(version: 0)
Comparing performance of:
lodash vs native vs for loop
Created:
one year ago
by:
Guest
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HTML Preparation code:
<script src='https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js'></script>
Script Preparation code:
var value = [{a: 30310}, {b: 100303}, {c: 3040494}, {d: 6542321}, {e: 13123531}]
Tests:
lodash
_.forEach(value, function(v,i) {console.log(v)})
native
value.forEach(function(v,i) {console.log(v)})
for loop
for (let i = 0; i < value.length; i++) { console.log(value[i]); }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
lodash
native
for loop
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/136.0.0.0 Safari/537.36 Edg/136.0.0.0
Browser/OS:
Chrome 136 on Windows
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Test name
Executions per second
lodash
64785.8 Ops/sec
native
66846.2 Ops/sec
for loop
79511.7 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
**Overview of the Benchmark** The provided benchmark is designed to compare the performance of three different approaches in JavaScript: Lodash's `forEach` function, native `foreach` loop, and native `for` loop. **Options Compared** The benchmark tests the execution speed of each approach on a predefined array of objects (`value`) with five elements. The three options being compared are: 1. **Lodash's `forEach` function**: This is a utility function provided by the Lodash library that iterates over an array and executes a callback function for each element. 2. **Native `foreach` loop**: This is a built-in JavaScript method that allows iterating over an array using a traditional `for` loop syntax. 3. **Native `for` loop**: This is another built-in JavaScript construct that allows looping through an array using a traditional `for` loop syntax. **Pros and Cons of Each Approach** 1. **Lodash's `forEach` function**: * Pros: Concise code, easy to read and write, and provides a clear benefit over native loops when dealing with complex logic. * Cons: External dependency (Lodash library), slower performance compared to native loops due to the overhead of the library. 2. **Native `foreach` loop**: * Pros: Fastest execution speed, no external dependencies, and allows for more control over iteration logic. * Cons: More verbose code, requires a deeper understanding of JavaScript syntax and iteration mechanics. 3. **Native `for` loop**: * Pros: Lightweight and easy to understand, allowing for quick prototyping and development. * Cons: Slowest execution speed among the three options, may not be suitable for large-scale applications. **Library Used** The Lodash library is used in the benchmark, specifically version 4.17.10. Lodash provides a wide range of utility functions that can simplify code writing and improve performance. **Special JS Feature or Syntax (Not Applicable)** There are no special JavaScript features or syntax being tested in this benchmark. **Alternatives** Other alternatives for iterating over arrays in JavaScript include: 1. `Array.prototype.forEach()`: This is a built-in method of the Array prototype that allows iterating over an array using a callback function. 2. `Array.prototype.map()` and `Array.prototype.filter()`: These methods can be used to transform or filter arrays, but may not be suitable for all use cases. In summary, this benchmark provides a useful comparison between three different approaches to iterating over arrays in JavaScript, highlighting the trade-offs between conciseness, performance, and control.
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