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Some vs. Filter vs. indexOf vs. Includes vs. Find - fixed
(version: 0)
Correct version of the https://www.measurethat.net/Benchmarks/Show/9045/0/some-vs-filter-vs-indexof-vs-includes-vs-find benchmark
Comparing performance of:
Array.some vs Array.filter vs Array.indexOf vs Array.includes vs Array.find
Created:
4 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var tempResult = false; var arr = []; for (var i = 0; i < 10000; i++) { arr.push(Math.random()); }
Tests:
Array.some
var tempResult = !!arr.some(v => v === Math.random());
Array.filter
var tempResult = !!arr.filter(v => v === Math.random());
Array.indexOf
var tempResult = !!arr.indexOf(Math.random()) !== -1 ;
Array.includes
var tempResult = !!arr.includes(Math.random());
Array.find
var tempResult = !!arr.find(v => v === Math.random());
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (5)
Previous results
Fork
Test case name
Result
Array.some
Array.filter
Array.indexOf
Array.includes
Array.find
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.1:latest
, generated one year ago):
Let's dive into the world of JavaScript benchmarking. **What is being tested?** The provided JSON represents a benchmark test that compares the performance of five different methods for finding an element in an array: 1. `Array.some` 2. `Array.filter` 3. `Array.indexOf` 4. `Array.includes` 5. `Array.find` **Options compared:** Each method is being tested with the same input: an array of 10,000 random numbers and a target value (also a random number) to search for. **Pros and cons of each approach:** 1. **`Array.some`**: This method returns `true` as soon as it finds a matching element in the array. It's useful when you need to find at least one occurrence of an element. * Pros: fast, returns immediately once found * Cons: might return incorrect results if the input array is modified while iterating over it (not relevant in this case) 2. **`Array.filter`**: This method creates a new array with all elements that pass a test implemented by a provided function. We're using it to find an element by checking its value. * Pros: can be used for more complex filtering logic * Cons: slower than `some` since it creates a new array, and might use more memory if the filtered array is large 3. **`Array.indexOf`**: This method returns the index of the first occurrence of an element in the array, or `-1` if not found. * Pros: fast, returns exact position of the element (if found) * Cons: assumes the input value can be used as a key for lookup (which is the case here), but might not work with complex data structures 4. **`Array.includes`**: This method returns `true` if an array includes at least one occurrence of an element. * Pros: fast, returns immediately once found * Cons: same as `some`, might return incorrect results if the input array is modified while iterating over it (not relevant in this case) 5. **`Array.find`**: This method returns the first element that satisfies a test implemented by a provided function. * Pros: fast, returns immediately once found * Cons: same as `some`, might return incorrect results if the input array is modified while iterating over it (not relevant in this case) **Library usage:** No external libraries are used in these benchmarks. **JS feature or syntax:** The following features and syntax are used: 1. Arrow functions (`v => v === Math.random()`) 2. Method chaining (`some`, `filter`, etc.) 3. Object shorthand notation (e.g., `"Name": "Some vs. Filter vs. indexOf vs. Includes vs. Find - fixed"`) **Other considerations:** The benchmark is executed on a Chrome 98 browser, running on Linux desktop. The results are measured in executions per second. **Alternatives:** In addition to the methods compared here, other alternatives for finding an element in an array include: 1. Using a `Set` to store unique values and then checking membership using the `has()` method. 2. Implementing a custom binary search algorithm. 3. Utilizing a data structure like a hash table or trie. Keep in mind that these alternatives might have different trade-offs (e.g., speed, memory usage, complexity) depending on the specific use case.
Related benchmarks:
Some vs. Filter vs. indexOf vs. Find
Some vs Filter vs indexOf vs Includes vs Find
Some vs. Filter vs. findIndex vs find
Some vs. Filter with pop() vs. indexOf vs. Includes vs. Find
Some vs. Filter vs. indexOf vs. Includes vs. Find with fix
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