Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Unique vs set
(version: 0)
Comparing performance of:
Set vs Unique Sorted vs Unique Unsorted vs map
Created:
5 years ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<script src='https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js'></script>
Tests:
Set
var l = new Set([1, 2, 3, 4, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7]); return l;
Unique Sorted
var l = [1, 2, 3, 4, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7]; return _.uniq(l);
Unique Unsorted
var l = [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 3, 2, 1]; return _.uniq(l);
map
var l = {}; l[1] = true; l[2] = true; l[3] = true; l[4] = true; l[5] = true; l[6] = true; return _.keys(l);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (4)
Previous results
Fork
Test case name
Result
Set
Unique Sorted
Unique Unsorted
map
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
to run it!
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided JSON data and explain what is tested, compared, and some considerations for each approach. **Benchmark Definition** The benchmark definition provides an overview of the test case. In this case, we have four different test cases: 1. `Unique vs set`: This test case compares the performance of a JavaScript set (`Set` object) with a standard JavaScript array. 2. `Unique Sorted`: This test case measures the performance of the `_.uniq()` function from the Lodash library on a sorted array. 3. `Unique Unsorted`: This test case measures the performance of the `_.uniq()` function on an unsorted array. 4. `map`: This test case tests the performance of getting keys from an object using the `_.keys()` function from Lodash. **Options compared** The options being compared are: * A standard JavaScript array (`[]`) * A JavaScript set (`Set` object) * The `_.uniq()` function from Lodash library on a sorted and unsorted array * Getting keys from an object using the `_.keys()` function from Lodash **Pros and Cons of each approach** 1. **Standard JavaScript array**: * Pros: Native performance, no dependencies. * Cons: May have duplicate elements, which can lead to slower performance in some cases. 2. **JavaScript set**: * Pros: Efficient data structure for fast membership testing and insertion/deletion. * Cons: Not designed for random access or indexing, may be slower than arrays for certain operations. 3. **_.uniq() function from Lodash library** (on sorted array): * Pros: Provides a standardized way to remove duplicates, handles edge cases, and is optimized for performance. * Cons: Requires the Lodash library, which adds dependencies and may impact performance in some cases. 4. **_.keys()` function from Lodash library**: * Pros: Efficiently retrieves keys from an object, handles edge cases. * Cons: Requires the Lodash library, which adds dependencies. **Library: Lodash** Lodash is a popular JavaScript utility library that provides a wide range of functions for common tasks such as array manipulation, object iteration, and more. The `_.uniq()` function is used to remove duplicate elements from an array, while the `_.keys()` function is used to retrieve keys from an object. **Special JS feature: None** There are no special JavaScript features or syntax used in this benchmark. **Other alternatives** If you don't want to use the Lodash library, you can implement the same functionality using native JavaScript functions: * For removing duplicates from an array: `Array.prototype.filter()`, `Array.prototype.indexOf()`, and conditional statements. * For getting keys from an object: `Object.keys()`, `for...in` loop, or `for...of` loop. Keep in mind that these alternatives may not be as efficient or convenient to use as the Lodash library functions.
Related benchmarks:
lodash uniq vs native uniq
Lodash uniqBy vs Set 10000
Lodash - uniq
lodash vs ES6 uniq
lodash uniq vs spread new Set() medium size
Comments
Confirm delete:
Do you really want to delete benchmark?