Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Array.prototype.concat vs spread operator no jquery 83e48
(version: 0)
Compare the new ES6 spread operator with the traditional concat() method
Comparing performance of:
Array.prototype.concat vs spread operator
Created:
4 years ago
by:
Guest
Jump to the latest result
Tests:
Array.prototype.concat
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].concat(params);
spread operator
var params = [ "hello", true, 7 ] var other = [ 1, 2, ...params ]
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
Array.prototype.concat
spread operator
Fastest:
N/A
Slowest:
N/A
Latest run results:
No previous run results
This benchmark does not have any results yet. Be the first one
to run it!
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the benchmark. **What is being tested?** The provided JSON represents two test cases that compare the performance of the traditional `concat()` method with the new ES6 spread operator (`...`) in JavaScript. The tests are specifically designed to measure which approach is faster for concatenating arrays. **Options compared:** Two options are being compared: 1. **Array.prototype.concat()**: This is a traditional method used to concatenate two or more arrays in JavaScript. 2. **Spread operator (`...`)**: Introduced in ES6, this operator allows for the expansion of an array-like object into individual elements. **Pros and cons of each approach:** * **Array.prototype.concat():** + Pros: - Widely supported and well-documented - Easy to read and understand + Cons: - Can be slower than the spread operator due to its method invocation overhead - May incur additional memory allocations * **Spread operator (`...`):** + Pros: - Faster execution compared to `concat()` - More concise and expressive code + Cons: - Requires ES6 support, which may not be available in older browsers or environments - Can be less readable for developers unfamiliar with the syntax **Library usage:** There is no library mentioned in the provided JSON. The tests are self-contained JavaScript code snippets. **Special JS feature or syntax:** The tests use the spread operator (`...`), which was introduced in ES6. This allows for a concise and expressive way to concatenate arrays, but may not be supported in older browsers or environments. **Benchmark preparation code and HTML Preparation Code:** No specific preparation code is provided for the benchmark, as it's likely that the test cases are already optimized for performance. The `Html Preparation Code` field is also empty, which suggests that no additional setup or configuration is required for the tests. **Other alternatives:** If the spread operator is not supported in older browsers or environments, other alternatives can be used to concatenate arrays, such as: * Using a library like Lodash, which provides a `concat` function * Using the `Array.prototype.push()` method with the `...` spread operator * Creating a new array using `Array.from()` and then pushing elements onto it Keep in mind that these alternatives may introduce additional overhead or complexity compared to the original spread operator approach.
Related benchmarks:
concat 2 arrays: Array.prototype.concat vs spread operator
Array.prototype.concat vs spread operator (add)
Array.prototype.concat vs spread operator (withouth JQuery)
Array.prototype.concat vs spread operator (fix)
Array.prototype.concat vs spread operator on small array
Comments
Confirm delete:
Do you really want to delete benchmark?