Benchmark: Filter - MeasureThat.net

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.6.5/angular.min.js'></script>

Script Preparation code:

function filterArray(arrayToFilter, testFunction) {
                    var elementsRemoved = false;
                    var idx;

                    if (!angular.isArray(arrayToFilter) || !angular.isFunction(testFunction)) {
                        return elementsRemoved;
                    }

                    for (idx = arrayToFilter.length - 1; idx >= 0; idx--) {
                        if (!testFunction(arrayToFilter[idx])) {
                            arrayToFilter.splice(idx, 1);
                            elementsRemoved = true;
                        }
                    }

                    return elementsRemoved;
                }

Tests:

Case 1
filterArray(Array.apply(null, {length: 100}).map(Function.call, Math.random), (x) => x > 0.5)
Case 2
filterArray(Array.apply(null, {length: 10000}).map(Function.call, Math.random), (x) => x > 0.5)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Case 1
Case 2

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

I'll break down the benchmark and explain what's being tested, compared, and other considerations.

**Benchmark Definition**

The benchmark definition provides information about the test case, including:

* `Name`: "Filter" - This is the name of the benchmark, which in this case is a simple filter function.
* `Description`: "Testing if statement of filter array is in fact " - This describes what the benchmark is testing, which is the performance of filtering an array using an if statement.
* `Script Preparation Code` and `Html Preparation Code`: These are code snippets that need to be included in the benchmark environment. The script preparation code defines a function called `filterArray`, which takes two arguments: an array to filter and a test function. The html preparation code includes a reference to Angular.js, which is used later.

**Individual Test Cases**

The individual test cases provide more specific information about what's being tested:

* In each test case, the `Benchmark Definition` uses the same `filterArray` function defined in the script preparation code.
* The only difference between the two test cases is the size of the array to filter: 100 elements versus 10,000 elements. This suggests that the benchmark is testing the performance of filtering large arrays.

**Comparison**

The comparison between the two test cases is straightforward:

* Case 1 uses a smaller array (100 elements) and takes fewer executions per second.
* Case 2 uses a larger array (10,000 elements) and takes more executions per second.

This suggests that the benchmark is testing how well the `filterArray` function performs with arrays of varying sizes.

**Options Compared**

The options being compared are:

* Array size: Small vs. Large
* Executions per second: Faster vs. Slower

**Pros and Cons**

* **Small array**: Pro - Easier to compute, faster execution; Con - Less representative of real-world use cases.
* **Large array**: Pro - More representative of real-world use cases, but potentially slower execution; Con - Requires more resources, may not be suitable for all environments.

Other considerations:

* The benchmark uses Angular.js, which is a JavaScript framework that provides additional functionality beyond the standard language. Using a framework like Angular can affect performance and introduce new variables to consider.
* The `filterArray` function modifies the original array in place, which may have implications for code readability and maintainability.

**Libraries and Special Features**

The benchmark uses:

* **Angular.js**: A JavaScript framework that provides additional functionality beyond the standard language. In this case, it's used as a dependency in the script preparation code.
* **`Function.call`**: A method that calls a function with a specific `this` context. This is used in the `map` method to create a new array.

No special JavaScript features or syntax are mentioned in the benchmark definition or test cases.

**Alternatives**

If this benchmark were written from scratch, alternative approaches might include:

* Using a more modern and efficient filtering algorithm, such as `Array.prototype.filter()`.
* Using a different data structure, such as a linked list or binary search tree, to improve performance.
* Adding additional tests, such as testing with different types of input data or edge cases.

However, the current benchmark provides a clear and concise test case that focuses on the performance of filtering an array using an if statement.

Related benchmarks:

Filter (version: 0)

Testing if statement of filter array is in fact

Comparing performance of: Case 1 vs Case 2

Created: 7 years ago by: Guest

Jump to the latest result

Case 1

Case 2

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):