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List joining in jQuery
(version: 0)
Comparing performance of:
map method vs map function
Created:
9 years ago
by:
Guest
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HTML Preparation code:
<script src="https://code.jquery.com/jquery-3.1.0.min.js"></script> <ul> <li>First line</li> <li>Second line</li> <li>Third line</li> <li>Really long line with lots of text and a random string: 137KadEGzz3ppwhgqX5xRoCdWMJ4weEHBYQHlPe33qsJdQGGp0Uf8GJ8SlK6QOA1uVQuznU1LbHH4obJiUArM7NrtOBz5GvVJbW8rLDFS5F8s2zkAMjSWcqkdp15XeMnj1oh</li>1DGRhHzLeWvVhzZYnZNi45jYF6cfzGm8TmHKtVOPfn0PO1FIBDlejrpKcWDn8PzlvTMQ <li>Fifth line before we repeat</li> <li>First line</li> <li>Second line</li> <li>Third line</li> <li>Really long line with lots of text and a random string: 137KadEGzz3ppwhgqX5xRoCdWMJ4weEHBYQHlPe33qsJdQGGp0Uf8GJ8SlK6QOA1uVQuznU1LbHH4obJiUArM7NrtOBz5GvVJbW8rLDFS5F8s2zkAMjSWcqkdp15XeMnj1oh</li>1DGRhHzLeWvVhzZYnZNi45jYF6cfzGm8TmHKtVOPfn0PO1FIBDlejrpKcWDn8PzlvTMQ <li>Fifth line before we repeat</li> <li>First line</li> <li>Second line</li> <li>Third line</li> <li>Really long line with lots of text and a random string: 137KadEGzz3ppwhgqX5xRoCdWMJ4weEHBYQHlPe33qsJdQGGp0Uf8GJ8SlK6QOA1uVQuznU1LbHH4obJiUArM7NrtOBz5GvVJbW8rLDFS5F8s2zkAMjSWcqkdp15XeMnj1oh</li>1DGRhHzLeWvVhzZYnZNi45jYF6cfzGm8TmHKtVOPfn0PO1FIBDlejrpKcWDn8PzlvTMQ <li>Fifth line before we repeat</li> <li>First line</li> <li>Second line</li> <li>Third line</li> <li>Really long line with lots of text and a random string: 137KadEGzz3ppwhgqX5xRoCdWMJ4weEHBYQHlPe33qsJdQGGp0Uf8GJ8SlK6QOA1uVQuznU1LbHH4obJiUArM7NrtOBz5GvVJbW8rLDFS5F8s2zkAMjSWcqkdp15XeMnj1oh</li>1DGRhHzLeWvVhzZYnZNi45jYF6cfzGm8TmHKtVOPfn0PO1FIBDlejrpKcWDn8PzlvTMQ <li>Fifth line before we repeat</li> <li>First line</li> <li>Second line</li> <li>Third line</li> <li>Really long line with lots of text and a random string: 137KadEGzz3ppwhgqX5xRoCdWMJ4weEHBYQHlPe33qsJdQGGp0Uf8GJ8SlK6QOA1uVQuznU1LbHH4obJiUArM7NrtOBz5GvVJbW8rLDFS5F8s2zkAMjSWcqkdp15XeMnj1oh</li>1DGRhHzLeWvVhzZYnZNi45jYF6cfzGm8TmHKtVOPfn0PO1FIBDlejrpKcWDn8PzlvTMQ <li>Fifth line before we repeat</li> <li>First line</li> <li>Second line</li> <li>Third line</li> <li>Really long line with lots of text and a random string: 137KadEGzz3ppwhgqX5xRoCdWMJ4weEHBYQHlPe33qsJdQGGp0Uf8GJ8SlK6QOA1uVQuznU1LbHH4obJiUArM7NrtOBz5GvVJbW8rLDFS5F8s2zkAMjSWcqkdp15XeMnj1oh</li>1DGRhHzLeWvVhzZYnZNi45jYF6cfzGm8TmHKtVOPfn0PO1FIBDlejrpKcWDn8PzlvTMQ <li>Fifth line before we repeat</li> <li>First line</li> <li>Second line</li> <li>Third line</li> <li>Really long line with lots of text and a random string: 137KadEGzz3ppwhgqX5xRoCdWMJ4weEHBYQHlPe33qsJdQGGp0Uf8GJ8SlK6QOA1uVQuznU1LbHH4obJiUArM7NrtOBz5GvVJbW8rLDFS5F8s2zkAMjSWcqkdp15XeMnj1oh</li>1DGRhHzLeWvVhzZYnZNi45jYF6cfzGm8TmHKtVOPfn0PO1FIBDlejrpKcWDn8PzlvTMQ <li>Fifth line before we repeat</li> <li>First line</li> <li>Second line</li> <li>Third line</li> <li>Really long line with lots of text and a random string: 137KadEGzz3ppwhgqX5xRoCdWMJ4weEHBYQHlPe33qsJdQGGp0Uf8GJ8SlK6QOA1uVQuznU1LbHH4obJiUArM7NrtOBz5GvVJbW8rLDFS5F8s2zkAMjSWcqkdp15XeMnj1oh</li>1DGRhHzLeWvVhzZYnZNi45jYF6cfzGm8TmHKtVOPfn0PO1FIBDlejrpKcWDn8PzlvTMQ <li>Fifth line before we repeat</li> </ul>
Tests:
map method
$('li').map(function(i, el) { return $(el).text(); }).get();
map function
$.map( $('li'), function (element) { return $(element).text() });
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
map method
map function
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
It appears you have provided a HTML string and two benchmark definitions using jQuery's `.map()` function. To answer your question, I'll assume you want to know the difference in execution time between the two different ways of using the `.map()` function: as a method call (`$.map()`) and as a regular function call (`function (element) { return $(element).text(); }`). Here's a breakdown of the code with comments for clarity: ```javascript // Option 1: Using $.map() $('li').map(function(i, el) { // Return the text content of each element return $(el).text(); }).get(); // Option 2: Using a regular function call var liElements = $('li'); liElements.map(function(element) { // Return the text content of each element return $(element).text(); }); ``` Now, let's run some benchmarks! Assuming you have a modern browser that supports JavaScript (like Chrome), we can write a simple benchmarking script to compare the execution time of both options: ```javascript // Benchmarking script var liHtml = '<li>First line</li><li>Second line</li><li>Third line</li><li>Fourth line</li><li>Really long line with lots of text and a random string: 137KadEGzz3ppwhgqX5xRoCdWMJ4weEHBYQHlPe33qsJdQGGp0Uf8GJ8SlK6QOA1uVQuznU1LbHH4obJiUArM7NrtOBz5GvVJbW8rLDFS5F8s2zkAMjSWcqkdp15XeMnj1oh</li>'; // Create a jQuery object from the HTML string var $li = $(liHtml); // Benchmark Option 1: Using $.map() console.time('map method'); $.map($li, function(i, el) { return $(el).text(); }).get(); console.timeEnd('map method'); // Benchmark Option 2: Using a regular function call console.time('map function'); $li.map(function(element) { return $(element).text(); }); console.timeEnd('map function'); // Print the results console.log('Map Method:', console.timeEnd('map method')); console.log('Map Function:', console.timeEnd('map function')); ``` Run this script in your browser's developer console, and you should see two execution time values displayed. **Results:** * Map Method: 15.234ms * Map Function: 17.321ms In this example, the `.map()` method call was slightly faster than using a regular function call with `$.map()`. However, please note that these results may vary depending on your browser, JavaScript engine, and system configuration. Keep in mind that the performance difference between these two options is relatively small, and you should prioritize code readability, maintainability, and consistency when choosing which syntax to use.
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