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Node.nodeValue vs textNode.data
(version: 0)
Comparing performance of:
Node.nodeValue vs node.data
Created:
4 years ago
by:
Guest
Go to the latest result
Script Preparation code:
var node = document.createTextNode(' '); var i = 10000;
Tests:
Node.nodeValue
while(i){ node.nodeValue = i; i-- }
node.data
while(i){ node.data = i; i-- }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Node.nodeValue
node.data
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Browser/OS:
Chrome 130 on Mac OS X 10.15.7
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=563427" width="100%" height="500px"></iframe>
Node.nodeValue
51.8M/s
node.data
49.4M/s
View exact numbers
Test name
Executions per second
✓
Node.nodeValue
51,831,800 Ops/sec
node.data
49,378,128 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and explain what's being tested, compared, and analyzed. **Benchmark Overview** The benchmark is designed to compare the performance of two approaches: assigning a value directly to `nodeValue` versus assigning a value to `data`. Both tests create a new text node using the `document.createTextNode()` method and then use a `while` loop to update its value. The goal is to measure which approach is faster. **Options Compared** There are two options being compared: 1. **Direct assignment to `nodeValue`**: In this approach, the value is assigned directly to the `nodeValue` property of the text node. 2. **Assignment to `data`**: In this approach, the value is assigned to the `data` property of the text node. **Pros and Cons** * Direct assignment to `nodeValue`: + Pros: Typically faster since it doesn't involve a property lookup or modification of an internal buffer. + Cons: Some older browsers may not support or optimize this property, leading to slower performance. * Assignment to `data`: + Pros: More widely supported across browsers, as it's the primary way to set text content on HTML elements. Modern browsers have optimized their behavior for this property, making it faster. + Cons: May involve a small overhead due to property lookup or internal buffer modifications. **Library/Features Used** There is no explicit library mentioned in the provided benchmark definition, but we can infer that: * `document.createTextNode()` is used to create a new text node, which is a native JavaScript API. * The `while` loop and assignment statements are standard JavaScript constructs. **Special JS Features/Syntax** None of the code snippets explicitly use any special JavaScript features or syntax, such as async/await, Promises, or Arrow functions. However, it's worth noting that modern browsers often optimize for performance by avoiding unnecessary property lookups or modifications, which could be considered a subtle optimization feature. **Other Alternatives** If you wanted to modify this benchmark to compare other approaches, here are some alternatives: * Compare the performance of different ways to update text content on an HTML element, such as: + Directly setting the `innerHTML` property. + Using `textContent`. + Creating a new element with the updated text content. * Experiment with different text node creation methods or properties, like: + `CDATASection` nodes for special cases like XML literals. + Using `Element.createDocumentFragment()` to create a new fragment. Keep in mind that each alternative would require modifying the benchmark definition and test code.
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