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Some vs Find early find
(version: 0)
Comparing performance of:
Find vs Some
Created:
one year ago
by:
Registered User
Go to the latest result
Script Preparation code:
var data = [] data.push({ username: 'titi' }) for (let i = 0; i < 5000; ++i) data.push({ username: 'toto' }) for (let i = 0; i < 2500; ++i) data.push({ username: 'toto' })
Tests:
Find
data.find(e => e.username === 'titi')
Some
data.some(e => e.username === 'titi')
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Find
Some
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
8 months ago
)
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36
Browser/OS:
Chrome 142 on Linux
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=621493" width="100%" height="500px"></iframe>
Find
163.5M/s
Some
157.6M/s
View exact numbers
Test name
Executions per second
✓
Find
163,495,776 Ops/sec
Some
157,630,288 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark definition and test cases. **What is being tested?** The benchmark is designed to compare two approaches: 1. `data.find(e => e.username === 'titi')` 2. `data.some(e => e.username === 'titi')` Both approaches are used to find an element in the `data` array that matches a specific condition (`username === 'titi'`). However, the difference lies in their implementation: * `find()` returns the first element that satisfies the condition (or undefined if no match is found). * `some()` returns true if at least one element satisfies the condition (and false otherwise). **Options being compared** The benchmark compares the performance of these two approaches: * `find()`: This approach is generally considered more efficient when only the first matching element is required. However, it can be slower than `some()` if no elements match. * `some()`: This approach is often faster than `find()` because it returns immediately if a match is found, whereas `find()` has to scan the entire array. **Pros and Cons** Pros of `find()`: * Returns the first matching element, which can be useful in certain scenarios. * Can be more efficient when only one match is expected. Cons of `find()`: * May be slower than `some()` if no elements match. * Requires an early termination condition to avoid unnecessary iterations. Pros of `some()` * Faster because it returns immediately if a match is found. * More flexible, as it can return true even if only one element matches. Cons of `some()`: * Does not return the actual matching element. * May be less efficient than `find()` when only one match is expected. **Library and syntax used** The benchmark uses the following JavaScript library: * None explicitly stated. However, the array methods (`find()`, `some()`) are part of the built-in ECMAScript standard. No special JavaScript features or syntax are mentioned in this specific benchmark. **Other alternatives** If you were to implement these two approaches from scratch, without using built-in array methods, you could use a loop-based approach. For example: ```javascript function find(username) { for (let i = 0; i < data.length; i++) { if (data[i].username === username) return data[i]; } return undefined; } function some(username) { let found = false; for (let i = 0; i < data.length; i++) { if (data[i].username === username) { found = true; break; } } return found; } ``` Keep in mind that these implementations would likely be slower and less efficient than using the built-in `find()` and `some()` methods.
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