<script src="
https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js
"></script>
function double(n) {
return n*2;
}
var data = [Array(20)].map((v, idx) => idx);
_.map(double, data);
data.map(double);
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
lodash | |
es6 |
Test name | Executions per second |
---|---|
lodash | 1831735.2 Ops/sec |
es6 | 3502437.5 Ops/sec |
Let's dive into the world of MeasureThat.net and explore what's being tested in this benchmark.
Benchmark Definition
The provided JSON defines a benchmark with two test cases: lodash
and es6
. The benchmark measures the performance difference between using the Lodash library (lodash
) versus a vanilla JavaScript implementation (es6
) for a specific task.
In the "Script Preparation Code" section, we see that a simple function double(n)
is defined, which takes an input n
and returns its double value. This function is then used to create an array of numbers with 20 elements using the spread operator (Array(20).map((v, idx) => idx)
).
The "Html Preparation Code" section includes a script tag that loads the Lodash library from a CDN.
Options being compared
In this benchmark, we have two main options being compared:
lodash
option uses the popular Lodash library to perform the mapping operation on the array.es6
option performs the same mapping operation using only vanilla JavaScript.Pros and Cons of each approach
Lodash library:
Pros:
Cons:
Vanilla JavaScript implementation (es6):
Pros:
Cons:
Other considerations
In this benchmark, we can observe that the es6
option performs slightly better than the lodash
option on the test device. This could be due to various factors, such as:
Library: Lodash
Lodash is a popular JavaScript utility library that provides a comprehensive set of functions for common tasks like array manipulation, string manipulation, and object transformation. It's often used to simplify code and improve performance in many applications.
Special JS feature: None mentioned
In this benchmark, we don't see any special JavaScript features or syntax being tested. The focus is on the performance difference between using a library versus a vanilla implementation.
Alternatives
If you're interested in exploring alternative approaches for measuring performance differences like this one, here are some options:
Keep in mind that these alternatives may have their own strengths and weaknesses, so it's essential to evaluate each option based on your specific needs and goals.