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spread operator vs push test - correct
(version: 0)
Compare the new ES6 spread operator with and push Comparing performance of spread operator vs Push
Comparing performance of:
Spread Operator vs Push
Created:
6 years ago
by:
Guest
Go to the latest result
Tests:
Spread Operator
var other = [ 1, 2, ...[ "hello", true, 7 ] ]
Push
var other = [ 1, 2 ].push("hello", true, 7);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Spread Operator
Push
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Browser/OS:
Chrome 131 on Mac OS X 10.15.7
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=575258" width="100%" height="500px"></iframe>
Push
54.0M/s
Spread Operator
41.4M/s
View exact numbers
Test name
Executions per second
✓
Push
54,031,988 Ops/sec
Spread Operator
41,381,448 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and explain what's being tested, compared, and discussed. **Benchmark Overview** The test measures the performance difference between two approaches in JavaScript: using the spread operator (`...`) to concatenate arrays, versus using `push()` with multiple arguments. The goal is to compare which approach is faster for a specific use case. **Options Compared** The benchmark compares two options: 1. **Spread Operator**: Using the spread operator (`...`) to create a new array by concatenating another array. 2. **Push() with Multiple Arguments**: Using `push()` method to add multiple elements to an existing array. **Pros and Cons of Each Approach** * **Spread Operator**: + Pros: More concise, readable code; can be used for other types of concatenations (e.g., arrays with objects). + Cons: Can lead to confusion if not understood by all developers; might be slower due to the need to create a new array. * **Push() with Multiple Arguments**: + Pros: More traditional and familiar syntax; no overhead of creating a new array. + Cons: Less concise, less readable code; can lead to multiple function calls, which might be slower. **Library/Function Used** There is no explicit library or function being used in this benchmark. The `push()` method is a built-in JavaScript function for adding elements to an array. **Special JS Feature/Syntax** The benchmark leverages the new ES6 spread operator feature (`...`) and the `push()` method with multiple arguments, which are both widely supported in modern browsers and Node.js environments. **Other Alternatives** If you're interested in exploring alternative approaches or optimizing your code further, here are some additional options to consider: * Using `concat()` instead of spread operator: `var other = [ 1, 2, ].concat([ "hello", true, 7 ])` * Using a library like Lodash for array manipulation: `_arr.push.apply(other, ["hello", true, 7])` * Exploring more efficient data structures or algorithms, such as using an array with `unshift()` instead of `push()` Keep in mind that these alternatives might change the performance characteristics of your code, and you should test them to determine which one best suits your needs. I hope this explanation helps!
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