Benchmark: lambdas2.3 - MeasureThat.net

Script Preparation code:

var x = [];
for(i=0; i<10000; i++){
	x.push(i)
}
var y = [];
var z = [];
var l = (i) => y[i] = x[i];

Tests:

lambda
for(i=0; i<10000; i++){ l(i) }
no lambda
for(i=0; i<10000; i++){ z[i] = x[i] }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lambda
no lambda

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.

I'll explain what's being tested in the provided benchmark.

**Benchmark Overview**

The benchmark is testing two different approaches to perform an array assignment operation:

1. **No Lambda**: This approach uses traditional JavaScript variable assignment (`z[i] = x[i]`) to assign values from one array (`x`) to another array (`y`).
2. **Lambda Function**: This approach uses a lambda function (`l(i) => y[i] = x[i]`) to perform the same array assignment operation.

**Comparison of Approaches**

The pros and cons of these approaches are:

* **No Lambda**:
	+ Pros: Easy to read and understand, well-supported by most JavaScript engines.
	+ Cons: Can be slower due to the overhead of creating a new variable `z` and assigning values to it in each iteration.
* **Lambda Function**:
	+ Pros: Can be faster due to its concise syntax and potential optimization by some JavaScript engines.
	+ Cons: Less readable and may require additional support for lambda functions in older JavaScript engines.

In this specific benchmark, both approaches are being tested on a large array of 10,000 elements. The results will show which approach performs better in terms of execution speed.

**Library Usage**

None of the provided benchmark code uses any external libraries.

**Special JS Features/Syntax**

The benchmark does not use any special JavaScript features or syntax that would require additional explanation.

**Alternative Approaches**

Other alternatives to consider for this type of operation might include:

* Using a `for...of` loop instead of a traditional `for` loop, which can be faster and more concise.
* Using the `Array.prototype.forEach()` method with an arrow function, which can also provide performance benefits.
* Using a JIT (Just-In-Time) compiler or a custom JavaScript engine to optimize the execution speed.

However, these alternatives are not being tested in this specific benchmark, and their results would depend on various factors such as the implementation details and the JavaScript engine used.

Related benchmarks:

lambdas2.3 (version: 0)

Comparing performance of: lambda vs no lambda

Created: 5 years ago by: Guest

Jump to the latest result

lambda

no lambda

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):