Benchmark: zip vs for - MeasureThat.net

Script Preparation code:

array = [1,2,3,4,5,5,6,7,8,9]

Tests:

zip
for (const [i, entrie] of array.entries()) { console.log(`i: ${i}, entrie ${entrie}`) }
for
for (let i = 0; i <array.length; i++) { console.log(`i: ${i}, entrie ${array[i]}`) }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
zip
for

Fastest: N/A

Slowest: N/A

Latest run results:

No previous 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 the benchmark and explain what's being tested.

**Benchmark Definition**

The benchmark is defined by a JSON object that provides details about the test:

* `Name`: The name of the benchmark, which is "zip vs for".
* `Description`: An optional description of the benchmark, which is empty in this case.
* `Script Preparation Code`: A JavaScript code snippet that sets up the data to be used in the benchmark. In this case, it creates an array called `array` with some sample values.
* `Html Preparation Code`: Another option for preparing HTML content, but in this case, it's empty.

**Individual Test Cases**

The benchmark consists of two individual test cases:

1. **zip**: This test case uses the `entries()` method on the `array` object to iterate over its elements simultaneously with their indices.
2. **for**: This test case uses a traditional `for` loop to iterate over the `array` using its length and index.

**Options Compared**

The benchmark is comparing two approaches:

* `zip`: Using the `entries()` method to iterate over an array's elements simultaneously with their indices.
* `for`: Using a traditional `for` loop to iterate over an array's elements.

**Pros and Cons of Each Approach**

Here are some pros and cons of each approach:

* **zip**:
	+ Pros:
		- Can be more concise and expressive, as it combines the index and value into a single pair.
		- Can be more efficient in certain cases, as it avoids the overhead of incrementing an index variable.
	+ Cons:
		- May not be supported by older browsers or environments that don't support `entries()`.
		- Can be less intuitive for developers who are used to traditional indexing and looping.
* **for**:
	+ Pros:
		- Wide browser support and compatibility.
		- Can be more familiar to developers who are used to traditional `for` loops.
	+ Cons:
		- More verbose and less expressive, as it requires separate variables for the index and value.
		- May incur additional overhead due to incrementing an index variable.

**Library Usage**

There is no explicit library usage in this benchmark. However, if you're using a library like `lodash` that provides utility functions like `entries()`, you would need to ensure that it's included in your benchmark environment.

**Special JS Feature or Syntax**

There are no special JavaScript features or syntaxes being used in this benchmark beyond what's already described. If you were using modern ES6+ features like `let const`, arrow functions, or template literals, they wouldn't be relevant to this specific comparison.

**Other Alternatives**

If you wanted to explore alternative approaches, some options could include:

* Using a library like `pmap` to measure the performance of array iterations.
* Implementing your own custom iterator for arrays using `Symbol.iterator`.
* Comparing different iteration methods, such as using `forEach()`, `map()`, or `reduce()`.

These alternatives would require additional setup and configuration, but could provide more nuanced insights into the performance characteristics of various array iteration approaches.

Related benchmarks:

zip vs for (version: 0)

Comparing performance of: zip vs for

Created: 3 years ago by: Registered User

Jump to the latest result

zip

for

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):