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js - title vs getAttribute vs hasAttribute
(version: 0)
Comparing performance of:
title vs setAttribute vs hasAttribute
Created:
2 years ago
by:
Guest
Go to the latest result
HTML Preparation code:
<div id="test" title="element">element</div>
Script Preparation code:
var el = document.getElementById("test");var x;
Tests:
title
if(el.title){x=0;};
setAttribute
if(el.getAttribute('title')){x=0;};
hasAttribute
if(el.hasAttribute('title')){x=0;};
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
title
setAttribute
hasAttribute
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
2 years ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Browser/OS:
Chrome 126 on Windows
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=531705" width="100%" height="500px"></iframe>
title
908K/s
setAttribute
641K/s
hasAttribute
533K/s
View exact numbers
Test name
Executions per second
✓
title
907,665 Ops/sec
setAttribute
641,352 Ops/sec
hasAttribute
533,057 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of JavaScript microbenchmarks. **What is being tested?** The provided JSON represents a benchmark test case on MeasureThat.net, which compares three different approaches to access and check the presence of the `title` attribute in an HTML element. The goal is to determine which approach is the most efficient. **Approaches compared:** 1. **Direct property access**: `el.title` 2. **`getAttribute()` method**: `el.getAttribute('title')` 3. **`hasAttribute()` method**: `el.hasAttribute('title')` **Pros and cons of each approach:** * **Direct property access (`el.title`)**: + Pros: Fast, as it directly accesses the attribute value. + Cons: May not work if the attribute is not present or set to an empty string, which can lead to unexpected results. * **`getAttribute()` method (`el.getAttribute('title')`)**: + Pros: More robust than direct property access, as it returns `null` if the attribute is not present or set to an empty string. + Cons: May be slower due to additional overhead from calling a method. * **`hasAttribute()` method (`el.hasAttribute('title')`)**: + Pros: Returns a boolean value indicating whether the attribute is present, which can be more intuitive than direct property access. + Cons: May still return `true` if the attribute is set to an empty string or has a special value (e.g., `" "`). **Library and its purpose** In this benchmark, two libraries are used: 1. **None**: The test cases use native JavaScript methods (`el.title`, `getAttribute()`, and `hasAttribute()`). 2. **None**: No external library is required for this benchmark. **Special JS features or syntax** There are no special JavaScript features or syntax used in this benchmark that would require additional explanation. **Other alternatives** If the developers wanted to explore alternative approaches, they could consider: 1. Using `getComputedStyle()` method to access the attribute value. 2. Utilizing a library like Lodash, which provides a `has` function for checking attribute presence. 3. Implementing a custom function to check attribute presence. Keep in mind that these alternatives might not provide significant improvements or changes to the benchmark results, as the core question being asked is which approach is most efficient.
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