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lambdas
(version: 0)
Comparing performance of:
lambda vs no lambda
Created:
5 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var x = []; for(i=0; i<1000; i++){ x.push(i) }
Tests:
lambda
let y = []; for(i=0; i<1000; i++){ y[i] = (() => x[i])() } console.log(y)
no lambda
let z = []; for(i=0; i<1000; i++){ z[i] = x[i] } console.log(z)
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
lambda
no lambda
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
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the JavaScript microbenchmark provided by MeasureThat.net. **Benchmark Overview** The benchmark measures the performance of two different approaches: using lambda functions (`let y = []; for(i=0; i<1000; i++){ ty[i] = (() => x[i])() } console.log(y)`) and without lambda functions (`let z = []; for(i=0; i<1000; i++){ z[i] = x[i] } console.log(z)`). Both approaches are used to execute a similar task, but with different syntax. **Options Compared** The benchmark compares the performance of two options: 1. **Lambda Functions**: Using arrow functions (`() =>`) to create anonymous functions on the fly. 2. **Simple Assignment**: Directly assigning values to an array (`x[i] = ...`). **Pros and Cons of Each Approach** * **Lambda Functions**: + Pros: concise, expressive syntax; can be used in functional programming contexts. + Cons: may incur overhead due to the creation of new functions; can lead to slower performance if not optimized. * **Simple Assignment**: + Pros: generally faster than lambda functions; can be more readable for simple assignments. + Cons: less concise and expressive syntax; may require explicit typing. **Library Used** In both test cases, no libraries are explicitly mentioned. However, the use of `x` as an array suggests that this benchmark is testing the performance of creating and assigning values to arrays in JavaScript. **Special JS Feature or Syntax** No special features or syntax are used in these test cases. Both approaches rely on standard JavaScript syntax and features. **Benchmark Preparation Code** The preparation code for each test case creates an empty array `x` and then populates it with numbers from 0 to 999 using a loop. **Individual Test Cases** Each test case consists of a single line of code that executes the benchmarking logic. The first test case uses lambda functions, while the second test case uses simple assignment. **Latest Benchmark Result** The latest benchmark result shows the performance metrics for both test cases: * **`no lambda`**: 2430.7060546875 executions per second. * **`lambda`**: 2438.207275390625 executions per second. This suggests that, on this specific platform and browser, using lambda functions yields a slightly better performance than simple assignment. **Other Alternatives** If you're interested in exploring alternative approaches or optimizing the benchmark further, some possible options to consider: * Using more advanced functional programming techniques, such as using `map()` or `reduce()`, which might provide better performance. * Experimenting with different array sizes and shapes to see how they affect performance. * Optimizing the preparation code for each test case (e.g., by reusing existing arrays). * Running the benchmark on other platforms and browsers to compare results. Keep in mind that these alternatives may require additional testing and analysis to determine their effectiveness.
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