Benchmark: Array static - MeasureThat.net

Script Preparation code:

var self = {};

var blacklistSELF = ['type', 'identifier', 'isDisposable', 'disposeProperties', 'undisposeProperties', 'removeProperty', 'disposeObject', 'validateStatus'];
self.removeProperty = function (property) {
            
            if (blacklistSELF.indexOf(property) === -1) {
                self[property] = null;
            }
        };

self.removeProperty2 = function (property) {
            
            if (property in blacklistSELF) {
                self[property] = null;
            }
        };

Tests:

!A
self.removeProperty('test');
A
self.removeProperty('undisposeProperties');
!B
self.removeProperty2('test');
B
self.removeProperty2('undisposeProperties');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
!A
A
!B
B

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.

Let's break down what's being tested in this benchmark.

**Benchmark Definition**

The provided JSON represents a JavaScript microbenchmark that tests the performance of two functions: `removeProperty` and `removeProperty2`. Both functions are part of an object `self`, which is initialized with some properties. The `blacklistSELF` array contains certain property names that should be skipped when calling these functions.

**Options Compared**

The benchmark compares the execution time of three different approaches:

1. `self.removeProperty('test')`: This function uses the `in` operator to check if a property exists in the `blacklistSELF` array. If it does, the property is set to null.
2. `self.removeProperty2('test')`: This function uses the `property in blacklistSELF` syntax to achieve the same result as the first approach.
3. `self.removeProperty2('undisposeProperties')`: This function uses a different property name that is not included in the `blacklistSELF` array.

**Pros and Cons of Each Approach**

1. **`self.removeProperty('test')`**:
	* Pros: Simple, widely supported syntax.
	* Cons: May be slower due to the overhead of checking for property existence in the `in` operator.
2. **`self.removeProperty2('test')`**:
	* Pros: More efficient than the first approach, as it avoids the `in` operator check.
	* Cons: Less widely supported syntax, may require explicit declaration of `self`.
3. **`self.removeProperty2('undisposeProperties')`**:
	* Pros: No need to check for property existence in the `blacklistSELF` array, as the property name is explicitly excluded.
	* Cons: This approach assumes that the property name is correct and will not be used elsewhere, which may not always be the case.

**Library**

There is no library mentioned in the provided JSON. The benchmark only uses built-in JavaScript features.

**Special JS Feature or Syntax**

The `in` operator and the `property in blacklistSELF` syntax are special features of JavaScript that allow for concise property existence checks. These features are widely supported across different browsers and JavaScript implementations.

**Other Considerations**

When writing performance-critical code, it's essential to consider the trade-offs between simplicity, readability, and performance. In this benchmark, the choice of approach can significantly impact execution time, especially when dealing with large datasets or complex logic.

In general, benchmarks like this one help developers understand the performance implications of different coding approaches and make informed decisions about which techniques to use in their own codebases.

**Other Alternatives**

If you're interested in exploring alternative approaches for similar problems, here are a few options:

1. Use `Object.prototype.hasOwnProperty.call()` instead of the `in` operator or `property in blacklistSELF`. This approach is slightly more efficient but may require additional setup.
2. Consider using a library like Lodash or Underscore.js, which provide more concise and expressive ways to perform property existence checks.
3. For more complex logic, consider using a Just-In-Time (JIT) compiler like V8 or SpiderMonkey, which can optimize your code for specific use cases.

Keep in mind that the choice of alternative approach depends on the specific requirements of your project and the trade-offs you're willing to make.

Related benchmarks:

Array static (version: 0)

Comparing performance of: !A vs A vs !B vs B

Created: 8 years ago by: Guest

Jump to the latest result

!A

A

!B

B

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):