<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
const arr = [1,[2,3,4]];
_.flatten(arr);
const arr = [1,[2,3,4]];
arr.flat();
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
Lodash flatten | |
Native flat |
Test name | Executions per second |
---|---|
Lodash flatten | 30004368.0 Ops/sec |
Native flat | 15554517.0 Ops/sec |
Let's break down the provided JSON data and explain what's being tested on MeasureThat.net.
Benchmark Definition
The benchmark is comparing two approaches to flatten an array in JavaScript:
flatten
: This method is part of the popular Lodash library, which provides a comprehensive set of utility functions for functional programming. The flatten
function takes an array as input and returns a new array with all nested arrays flattened.flat
: This is a built-in method introduced in ECMAScript 2019 (ES2019) that allows you to flatten an array in a more concise way.Options Compared
The benchmark compares the performance of these two approaches:
flatten
: A widely used and well-maintained library with a large user base.flat
: A built-in method that is part of the ECMAScript standard, which means it's available in all modern JavaScript engines.Pros and Cons
Lodash flatten
Pros:
Cons:
flat
method.Native flat
Pros:
Cons:
Library: Lodash
Lodash is a popular JavaScript library that provides a comprehensive set of utility functions for functional programming, including the flatten
method. It's widely used and well-maintained, making it a great choice for many developers.
Special JS Feature/Syntax
The benchmark doesn't explicitly mention any special JavaScript features or syntax. However, it does rely on the ECMAScript 2019 standard (ES2019) to utilize the flat
method.
Other Alternatives
If you need alternative approaches to flatten arrays in JavaScript, consider:
Array.prototype.concat()
or Array.prototype.reduce()
, although these may be less efficient than the native flat
method.Keep in mind that performance and efficiency will vary depending on the specific use case and environment.