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createTextNode() vs cloneNode(false)
(version: 0)
Comparing performance of:
createTextNode() vs cloneNode(false)
Created:
4 years ago
by:
Guest
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Tests:
createTextNode()
var list = [], n = 0; while(true) { n++; list.push(document.createTextNode('hello, world!')); if(n===100000) break; }
cloneNode(false)
var list = [], n = 0, node = document.createTextNode('empty'); while(true) { n++; t = node.cloneNode(); t.textContent = 'hello, world'; list.push(t); if(n===100000) break; }
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Suite status:
<idle, ready to run>
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Test case name
Result
createTextNode()
cloneNode(false)
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N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net. **What is being tested?** The benchmark measures the performance difference between two approaches: 1. `createTextNode()`: This method creates a new text node in the DOM. 2. `cloneNode(false)`: This method clones an existing node (in this case, a text node created using `createTextNode()`) and returns a new copy of it. **Options compared** The benchmark compares two options: 1. **Create a text node directly**: Using `document.createTextNode('hello, world!')` 2. **Clone an existing text node**: Using `node.cloneNode(false)` on an already created text node **Pros and Cons of each approach:** * **`createTextNode()`**: + Pros: - Fast, as it's a simple DOM operation - No overhead from cloning an existing node + Cons: - Creates a new text node in the DOM, which can lead to increased memory usage and slower performance for large datasets * **`cloneNode(false)`**: + Pros: - Reuses the original text node, reducing memory usage and potentially improving performance for large datasets + Cons: - Slower than creating a new text node from scratch, as it involves cloning an existing object **Library and its purpose** In this benchmark, no specific libraries are used beyond those included in the browser environment (e.g., `document`, `navigator`). However, if you were to modify the code, you might consider using libraries like [jsdom](https://github.com/jsdom/jsdom) for DOM manipulation or [lodash](https://www.lodash.com/) for utility functions. **Special JavaScript feature** The benchmark doesn't use any special JavaScript features beyond those commonly found in modern browsers. However, it's worth noting that the `while (true)` loop might not be optimal for performance in some browsers, as it can lead to longer execution times due to the overhead of repeatedly pushing new nodes onto an array. **Other alternatives** If you wanted to modify this benchmark or create a similar one, here are some alternative approaches: 1. Compare the performance of different DOM mutation APIs (e.g., `insertBefore()`, `appendChild()`) 2. Test the performance of various data structures (e.g., arrays, objects) 3. Measure the impact of using caching mechanisms (e.g., memoization) on performance 4. Evaluate the effects of parallel processing or async programming on microbenchmark performance Keep in mind that the specific alternatives will depend on your goals and requirements.
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