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Some vs Find bool
(version: 0)
Comparing performance of:
Find vs Some
Created:
2 years ago
by:
Guest
Go to the latest result
Script Preparation code:
var data = [] for (let i = 0; i < 5000; ++i) data.push({ username: 'toto' }) data.push({ username: 'titi' }) 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:
one year ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36
Browser/OS:
Chrome 132 on Mac OS X 10.15.7
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=589008" width="100%" height="500px"></iframe>
Some
167K/s
Find
156K/s
View exact numbers
Test name
Executions per second
✓
Some
166,744 Ops/sec
Find
155,896 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'll break down the provided benchmark JSON and explain what's being tested, compared, and the pros/cons of each approach. **Benchmark Definition:** The benchmark is designed to compare two JavaScript methods: 1. `!!data.find(e => e.username === 'titi')` 2. `data.some(e => e.username === 'titi')` These methods are testing the performance of finding a specific element (`"titi"` in this case) within an array (`data`) using two different approaches. **Method 1: `find`** The `find` method returns the first element that satisfies the provided condition. In this case, it will return the first occurrence of `"titi"` in the `data` array. Pros: * Efficient for finding a single specific element. * Returns an object if found (or undefined if not found). Cons: * Returns early as soon as it finds the match, which might lead to less iterations compared to other methods. **Method 2: `some`** The `some` method returns `true` if at least one element in the array satisfies the provided condition. In this case, it will return `true` if `"titi"` is found anywhere in the `data` array. Pros: * Returns early as soon as it finds a match. * Can be used for more complex conditions or multiple matches. Cons: * Returns `true` even if no exact match is found (i.e., any element with `"titi"`). * Requires iterating over the entire array to verify the condition. **Library and Special JS Features:** There are no libraries explicitly mentioned in the benchmark, but the use of `!!` suggests that it's a part of JavaScript syntax. The `!!` operator is called "double-bang" or "logical not" and is used for conditional expression evaluation. **Other Considerations:** * Both methods have a time complexity of O(n), where n is the length of the array, since they both require iterating over the elements. * The `find` method might be more suitable if you need to retrieve the actual element that matches the condition, while `some` returns only a boolean value. **Alternatives:** If you're looking for alternative methods, consider: 1. Using `Array.prototype.indexOf()` or `Array.prototype.lastIndexOf()`: These methods return the index of the first occurrence of `"titi"` in the array. 2. Using regular expressions (`/titi/g`): This can provide faster performance if you're dealing with a large number of occurrences. Keep in mind that these alternatives might not be as straightforward to use or implement, but they can offer different trade-offs in terms of performance and functionality.
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