Benchmark: Conditional non-empty Map clearing

Script Preparation code:

const obj = {};
const obk = {};
const obi = {};
const arr = [
  [obj, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [obk, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [obi, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
  [{}, 1],
];
var map1 = new Map(arr);

Tests:

clear
map1.clear();
conditional clear
if (map1.size > 0) { map1.clear(); }
loose conditional clear
if (map1.size) { map1.clear(); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
clear
conditional clear
loose conditional clear

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):

LLMs can make mistakes. Check important info.

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**Benchmark Overview**

The provided benchmark measures the performance of clearing a Map object in three different scenarios: `clear`, `conditional clear`, and `loose conditional clear`. A Map is a built-in JavaScript data structure that stores key-value pairs, similar to an object but with additional features like iteration and iteration ordering.

**Test Case 1: `clear`**

The first test case simply calls the `clear()` method on the Map object without any conditions. This test checks the performance of direct access and manipulation of the Map's internal data structure.

Pros:

* Simple and straightforward
* Easy to understand and implement

Cons:

* May not accurately reflect real-world usage patterns (e.g., no error handling or boundary checking)
* Can be slow due to the overhead of accessing and manipulating the underlying data structure

**Test Case 2: `conditional clear`**

The second test case uses an if-statement to check the size of the Map before calling `clear()`. This test simulates a common use case where developers need to ensure the Map is not empty before clearing it.

Pros:

* More representative of real-world usage patterns
* Helps to identify potential issues with error handling or boundary checking

Cons:

* May introduce additional overhead due to the conditional check
* Can be slower than the `clear()` method alone

**Test Case 3: `loose conditional clear`**

The third test case uses a loose if-statement (without parentheses) to check if the Map's size is greater than 0 before calling `clear()`. This test combines the simplicity of the direct `clear()` call with some basic error handling.

Pros:

* Balances performance and safety
* More efficient than the `conditional clear` case

Cons:

* May still introduce some overhead due to the conditional check
* Can be slower than the `clear()` method alone if the Map is large

**Library Used**

The benchmark uses JavaScript's built-in `Map` data structure, which is a part of the ECMAScript standard. The `Map` object provides an efficient way to store and iterate over key-value pairs, making it suitable for this type of performance test.

**Other Considerations**

When interpreting the results, consider the following:

* **DevicePlatform**: The benchmark was run on a desktop device with macOS 10.15.7.
* **OperatingSystem**: The operating system is not explicitly specified, but based on the `RawUAString`, it appears to be Chrome 96 running on Mac OS X.
* **ExecutionsPerSecond**: This value represents the number of executions per second for each test case.

**Alternatives**

If you're looking for alternative approaches or alternatives, consider:

* Using other data structures like objects or arrays
* Implementing custom clearing logic for performance-critical applications
* Optimizing Map operations using specialized libraries or techniques

Related benchmarks:

Conditional non-empty Map clearing (version: 0)

Comparing performance of: clear vs conditional clear vs loose conditional clear

Created: 4 years ago by: Guest

Jump to the latest result

clear

conditional clear

loose conditional clear

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):