Benchmark: push apply versus concat

Tests:

push.apply
var params = [1,2]; params.push.apply(params, [3,4,5]);
push
var params = [1,2]; params.push(3); params.push(4); params.push(5);
concat
var params = [1,2]; params.concat([3,4,5]);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
push.apply
push
concat

Fastest: N/A

Slowest: N/A

Latest run results:

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Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

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**Overview of the Benchmark**

The provided JSON represents a JavaScript microbenchmarking test case on MeasureThat.net. The benchmark compares three approaches: `push.apply`, `push` (using a loop), and `concat`. Each test case is represented as an individual "Individual test cases" section.

**What is tested?**

The benchmark tests the performance of these three approaches for adding multiple elements to an array:

*   `push.apply`: uses the `apply` method to pass the array and the arguments as separate arguments.
*   `push`: manually pushes each element onto the array using a loop.
*   `concat`: uses the `concat` method to add new elements to the array.

**Options compared**

The three approaches are compared in terms of their performance, measured by the number of executions per second (ExecutionsPerSecond).

**Pros and Cons of Each Approach:**

1.  **push.apply:**
    *   Pros:
        *   More concise and expressive way to add elements.
        *   Can be more efficient for large arrays since it avoids creating a new array.
    *   Cons:
        *   May not work as expected if the `apply` method is not supported in older browsers or environments.
2.  **push (using a loop):**
    *   Pros:
        *   Works universally, regardless of browser support for `apply`.
        *   Easy to understand and implement.
    *   Cons:
        *   Less concise than using `push.apply` and may be less efficient due to the need for explicit array manipulation.
3.  **concat:**
    *   Pros:
        *   Works universally, regardless of browser support for `apply`.
        *   Can be more readable for simple additions.
    *   Cons:
        *   May create a new array, which can lead to increased memory usage and slower performance for large arrays.

**Library Usage**

None of the test cases explicitly use any external libraries. However, the benchmark assumes that the JavaScript engine being tested supports these three methods (`push`, `concat`, and `apply`).

**Special JS Features or Syntax**

The benchmark does not utilize any special JavaScript features or syntax beyond what is required for the `push`, `concat`, and `apply` methods.

**Alternative Approaches**

Other approaches could be considered, such as:

*   Using the spread operator (`...`) to add elements to an array.
*   Utilizing `Array.prototype.push.apply()` with an iterator or generator expression.
*   Employing a library like Lodash's `tailRecursive` function for iterative array manipulation.

Keep in mind that these alternatives may not be relevant for this specific benchmark, as it is focused on comparing the performance of basic array addition methods.

Related benchmarks:

push apply versus concat (version: 0)

push apply versus concat

Comparing performance of: push.apply vs push vs concat

Created: 7 years ago by: Guest

Jump to the latest result

push.apply

push

concat

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):