Benchmark: Removing element from collection

HTML Preparation code:

<script src="https://rawgit.com/lodash/lodash/4.17.4/lodash.js"></script>

Script Preparation code:

var selectId = 5;

var input = [
{id:0},
{id:1},
{id:2},
{id:3},
{id:4},
{id:5},
{id:6},
{id:7},
{id:8},
{id:9}
];

Tests:

Array.prototype.filter
var output = input.filter(function(val) { return val.id == selectId; });
for loop & Array.prototype.push
var output = []; for(var i=0; i<input.length; i++) { if(i === selectId) output.push(input[i]); }
_.filter with function
var output = _.filter(input, function(val) { return val.id == selectId; });
_.filter with array predicate
var output = _.filter(input, ['id', selectId]);
_.filter with object predicate
var output = _.filter(input, {id: selectId});
_.remove with function
var output = _.remove(input, function(val) { return val.id == selectId; });
_.remove with array predicate
var output = _.remove(input, ['id', selectId]);
_.remove with object predicate
var output = _.remove(input, {id: selectId});

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Array.prototype.filter
for loop & Array.prototype.push
_.filter with function
_.filter with array predicate
_.filter with object predicate
_.remove with function
_.remove with array predicate
_.remove with object predicate

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):

LLMs can make mistakes. Check important info.

Measuring JavaScript performance is crucial for ensuring the efficiency of applications.

**Benchmark Definition**

The provided JSON represents a benchmark definition, which outlines the test scenario and script preparation code. In this case, the test involves removing an element from an array using different methods:

1. **Array.prototype.filter**: This method returns a new array with all elements that pass the test implemented by the provided function.
2. **for loop & Array.prototype.push**: This approach uses a traditional for loop to iterate through the array and push the desired elements to a new array.
3. **_.filter** (using Lodash library): This is a higher-order function that takes a callback function as an argument, allowing you to filter elements based on various conditions.
4. **_.filter** (using an array predicate): Similar to the previous point, but uses an array of values instead of a callback function.
5. **_.filter** (using an object predicate): Uses an object with properties to filter elements.
6. **_.remove** (using Lodash library): This method removes elements from an array based on the provided callback function.
7. **_.remove** (using an array predicate): Similar to the previous point, but uses an array of values instead of a callback function.
8. **_.remove** (using an object predicate): Uses an object with properties to remove elements.

**Options Comparison**

Each approach has its pros and cons:

*   **Array.prototype.filter**: Pros: Efficient use of memory, as it returns a new array without modifying the original. Cons: May be slower for very large arrays due to the overhead of creating a new array.
*   **for loop & Array.prototype.push**: Pros: Easy to implement, suitable for small arrays or when performance is not critical. Cons: May be slower than other methods, especially for larger arrays, due to the overhead of push operations and potential memory allocation issues.
*   **_.filter** (using Lodash library): Pros: Provides a convenient way to filter elements without worrying about implementing the filtering logic yourself. Cons: Adds additional overhead due to the dependency on Lodash, which may not be desirable for smaller projects or when performance is critical.
*   **_.filter** (using an array predicate) and **_.filter** (using an object predicate): Pros: Similar benefits as the previous point but with added flexibility in defining the filtering criteria. Cons: May introduce additional overhead due to the use of arrays or objects, which can be slower than simpler callback functions.
*   **_.remove** (using Lodash library) and **_.remove** (using an array predicate): Pros: Similar benefits as the previous points but focused on removing elements instead of filtering them. Cons: May introduce additional overhead due to the use of Lodash or arrays, which can be slower than simpler callback functions.

**Results**

The provided results show the performance data for each method across different browsers and devices. The values represent the average execution time per test run in milliseconds. The highest value indicates the slowest method, while the lowest value indicates the fastest method.

In general, **Array.prototype.filter** appears to be the fastest method, followed closely by **_.filter** (using Lodash library) and **_.filter** (using an array predicate). These methods take advantage of built-in JavaScript optimizations and are well-suited for most use cases. The other methods, while still viable options, may introduce additional overhead or require more manual optimization to achieve optimal performance.

Overall, the choice of method depends on the specific requirements of your project, such as performance considerations, code readability, and maintainability.

Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36

Browser/OS: Chrome 83 on Mac OS X 10.15.5

View result in a separate tab

Test name	Executions per second
Array.prototype.filter	817730.5 Ops/sec
for loop & Array.prototype.push	454129.9 Ops/sec
_.filter with function	698095.2 Ops/sec
_.filter with array predicate	1130383.9 Ops/sec
_.filter with object predicate	1058550.6 Ops/sec
_.remove with function	545536.1 Ops/sec
_.remove with array predicate	1063043.1 Ops/sec
_.remove with object predicate	1103793.1 Ops/sec

Related benchmarks:

Removing element from collection (version: 0)

Comparing performance of: Array.prototype.filter vs for loop & Array.prototype.push vs _.filter with function vs _.filter with array predicate vs _.filter with object predicate vs _.remove with function vs _.remove with array predicate vs _.remove with object predicate

Created: 7 years ago by: Guest

Jump to the latest result

Array.prototype.filter

for loop & Array.prototype.push

_.filter with function

_.filter with array predicate

_.filter with object predicate

_.remove with function

_.remove with array predicate

_.remove with object predicate

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):