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lodash vs for-of vs forEach2
(version: 0)
Comparing performance of:
lodash.forEach vs native for-of vs native for
Created:
6 years ago
by:
Guest
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HTML Preparation code:
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js"></script>
Script Preparation code:
var arr = []; for (let i = 1; i<100000; i++) {arr.push(i)}
Tests:
lodash.forEach
_.forEach(arr, function(v,k) {})
native for-of
for (const a of arr) {}
native for
for (let i = 0; i < arr.length; 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.forEach
native for-of
native for
Fastest:
N/A
Slowest:
N/A
Latest run results:
No previous run results
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of JavaScript benchmarks! **Overview** MeasureThat.net is a website where users can create and run JavaScript microbenchmarks to compare the performance of different approaches. The provided JSON represents a benchmark that tests three different ways to iterate over an array: using Lodash's `forEach` function, the native `for-of` loop, and a traditional `for` loop. **Tested Options** 1. **Lodash's `forEach`**: This is a library function that iterates over an array using a callback function. It's designed to be more functional programming-friendly than traditional loops. 2. **Native `for-of` loop**: This is a modern JavaScript feature that allows iterating over arrays without the need for a separate loop variable. It's generally faster and more memory-efficient than traditional loops. 3. **Traditional `for` loop**: This is a classic looping construct in JavaScript that uses a loop variable to iterate over an array. **Pros and Cons of Each Approach** 1. **Lodash's `forEach`**: * Pros: More functional programming-friendly, easier to read and write, less error-prone. * Cons: Requires the Lodash library to be loaded, can be slower than native loops due to the overhead of function calls. 2. **Native `for-of` loop**: * Pros: Faster, more memory-efficient, does not require additional library load. * Cons: Less familiar to some developers, may require more code to achieve same result as traditional loop. 3. **Traditional `for` loop**: * Pros: Well-established and widely supported, easy to understand and implement. * Cons: Can be slower and less memory-efficient than native loops, may have more errors due to indexing issues. **Library Used** In this benchmark, the Lodash library is used for its `forEach` function. Lodash is a popular JavaScript utility library that provides a wide range of functional programming helpers, including iteration utilities like `forEach`. **Special JS Feature/Syntax** None mentioned in this benchmark. However, it's worth noting that some modern browsers support features like `for-of`, `let`, and `const` variables, which can make coding more concise and efficient. **Other Alternatives** For iterating over arrays, other alternatives to Lodash's `forEach` include: * Vanilla JavaScript methods: `map()`, `reduce()`, `every()` * Other libraries: Underscore.js, Ramda * Closures or recursion for manual iteration In terms of native loops, the `for-of` loop is a modern alternative to traditional `for` loops. Other alternatives include: * `while` loops or recursive functions for manual iteration * Using `Array.prototype.forEach()` or other array methods for iteration. Keep in mind that the best approach depends on the specific requirements and constraints of your project.
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lodash.foreach vs for-of vs array.forEach
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