<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.js"></script>
var largeArray = new Array(10000).fill(0);
largeArray.map(x => x + 1);
_.map(largeArray, x => x + 1);
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
native | |
lodash |
Test name | Executions per second |
---|---|
native | 49167.7 Ops/sec |
lodash | 86795.4 Ops/sec |
Let's break down the benchmark and explain what's being tested.
What's being tested:
The benchmark is comparing two approaches to mapping over an array:
map()
method provided by the JavaScript language, which is native to most browsers.Options compared:
The two options being compared are:
map()
method)_.map()
function)Pros and Cons:
mapWith
, mapEach
Library:
The Lodash library is a popular JavaScript utility library that provides a wide range of functions for tasks like array manipulation, string manipulation, and functional programming.
Special JS feature or syntax:
There isn't any specific special JavaScript feature or syntax being tested in this benchmark. However, the use of map()
method and _.map()
function are examples of using higher-order functions (functions that take other functions as arguments) to manipulate data.
Other alternatives:
If you wanted to test alternative approaches to mapping over arrays, some options could include:
Keep in mind that the specific approach used will depend on the requirements and constraints of your project.
In terms of benchmarking, you can consider using tools like Benchmark.js, Jest, or Mocha to write and run benchmarks. These tools provide features like automatic test running, reporting, and visualization to help you understand performance differences between different approaches.
It's worth noting that the specific configuration and options used in this benchmark (e.g., array size, browser, device platform) may affect the results and comparisons made between native JavaScript map and Lodash map.