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javascript foreach vs javascript each vs jquery javascript for
(version: 0)
Benchmark.js
Comparing performance of:
javascript foreach vs jquery each vs javascript for
Created:
3 years ago
by:
Guest
Go to the latest result
HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>
Tests:
javascript foreach
var lista = []; for(var i = 0; i < 100000; i++){ lista.push(i); } lista.forEach(x => {var b = x+1})
jquery each
var lista = []; for(var i = 0; i < 100000; i++){ lista.push(i); } $(lista).each(function(x){ var b = x+1; });
javascript for
var lista = []; var x = 0; for(var i = 0; i < 100000; i++){ lista.push(i); } for (let i = 0; i < lista.length; i++) { var b = x+1; }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
Fork
Test case name
Result
javascript foreach
jquery each
javascript for
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Mobile Safari/537.36
Browser/OS:
Chrome Mobile 134 on Android
View result in a separate tab
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=598937" width="100%" height="500px"></iframe>
javascript foreach
574/s
javascript for
553/s
jquery each
189/s
View exact numbers
Test name
Executions per second
✓
javascript foreach
574 Ops/sec
javascript for
553 Ops/sec
jquery each
189 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'll break down the provided JSON for MeasureThat.net, explaining what's being tested and analyzing the different approaches. **Benchmark Overview** The benchmark measures the performance of three JavaScript iteration methods: `forEach`, `each` (with jQuery), and a traditional `for` loop. The test case involves creating an array of 100,000 elements and iterating over it to perform a simple calculation (`x + 1`) on each element. **Options Compared** The benchmark compares the performance of three different iteration methods: 1. **JavaScript `forEach`**: This method takes a callback function as an argument, which is executed for each element in the array. 2. **jQuery `each`**: This method is similar to JavaScript's `forEach`, but it requires jQuery to be included and uses its proprietary `each` function. 3. **Traditional `for` loop**: This method uses a traditional loop with an index variable (`i`) to iterate over the array. **Pros and Cons of Each Approach** 1. **JavaScript `forEach`**: * Pros: Concise, readable, and easy to implement. It's also part of the ECMAScript standard. * Cons: May incur some overhead due to function call and scope setup. 2. **jQuery `each`**: * Pros: Convenient for developers already familiar with jQuery, as it leverages the library's built-in functionality. * Cons: Requires jQuery to be included, which can add unnecessary dependencies and payload size. It also has a slightly less efficient implementation due to the proprietary nature of the function. 3. **Traditional `for` loop**: * Pros: Typically faster and more efficient than `forEach` or `each`, as it avoids the overhead of function call and scope setup. * Cons: Less readable and concise compared to `forEach`. **Library and Syntax** The test case uses jQuery's `each` method, which is a proprietary implementation. While not strictly necessary for this benchmark, using jQuery can introduce additional dependencies and payload size. No special JavaScript features or syntax are used in these tests; they focus on comparing the performance of three common iteration methods. **Alternatives** Other alternatives to consider when iterating over arrays in JavaScript include: * `for...in` loop * `map()` and `reduce()` methods (although these might incur additional overhead due to function call and scope setup) * WebAssembly (WASM) loops, which can provide a more efficient alternative for performance-critical code Keep in mind that the choice of iteration method ultimately depends on the specific requirements of your project, such as readability, maintainability, and performance considerations.
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