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getAttribute vs dataset - Multiple Reads
(version: 0)
Compare setAttribute to dataset
Comparing performance of:
getAttribute vs dataset
Created:
3 years ago
by:
Registered User
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HTML Preparation code:
<div id="foo" data-faa="faa" data-fee="fee" data-fii="fii" data-foo="foo" data-fuu="fuu" ></div>
Tests:
getAttribute
var element = document.getElementById("foo"); var i = 10000; while (i--) { var faa = element.getAttribute("data-faa"); var fee = element.getAttribute("data-fee"); var fii = element.getAttribute("data-fii"); var foo = element.getAttribute("data-foo"); var fuu = element.getAttribute("data-fuu"); }
dataset
var element = document.getElementById("foo"); var i = 10000; while (i--) { var dts = element.dataset; var faa = dts['data-faa']; var fee = dts['data-fee']; var fii = dts['data-fii']; var foo = dts['data-foo']; var fuu = dts['data-fuu']; }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
getAttribute
dataset
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
**Benchmark Explanation** The provided JSON represents a JavaScript microbenchmark on MeasureThat.net, which compares the performance of two approaches: using `getAttribute` and using the `dataset` property to access attribute values in HTML elements. **Options Compared** Two options are compared: 1. **Using `getAttribute`**: This approach uses the `getAttribute` method to dynamically retrieve attribute values from an HTML element. 2. **Using `dataset`**: This approach uses the `dataset` property to access attribute values stored under a specific key (e.g., `data-faa`, `data-fee`, etc.) in the element's `data-*` attributes. **Pros and Cons of Each Approach** **Using `getAttribute`:** Pros: * Wide browser support * Simple and straightforward syntax Cons: * Can be slower due to string manipulation and DOM access overhead * May lead to security vulnerabilities if not used correctly (e.g., using `getElementById` can introduce XSS risks) **Using `dataset`:** Pros: * Faster performance, as it allows direct access to attribute values without string manipulation * Safer, as it eliminates the need for `getAttribute`, which reduces potential security vulnerabilities Cons: * Browser support may be limited (although it's widely supported in modern browsers) * Requires familiarity with HTML5 data-* attributes and their usage **Library Usage** In the provided benchmark code, no external libraries are used. However, some JavaScript features like `dataset` property, arrow functions (`=>`), and template literals (`\`${...}\``) are utilized. **Special JS Feature or Syntax** * **Template Literals**: Used in the "dataset" test case to provide a concise way to access attribute values. Template literals allow embedding expressions inside string literals, making it easier to format strings with dynamic values. * **Arrow Functions**: Not used explicitly in this benchmark, but they are widely supported and can be useful for creating concise functions. **Alternatives** If you want to measure the performance of other approaches or alternatives, here are a few options: 1. Using `getAttribute` with an array of attributes: Instead of iterating over individual attributes like `data-faa`, `data-fee`, etc., you could use `getAttribute` with an array of attribute names to retrieve all values at once. 2. Using a library like Lodash or Ramda: These libraries provide functional programming utilities that can simplify data processing and potentially improve performance in certain scenarios. 3. Using a different approach, such as using CSS classes or styles to store data: This could be an alternative to using `dataset` property. Keep in mind that the best approach will depend on your specific use case, performance requirements, and personal preference.
Related benchmarks:
dataset vs getAttribute speed
getAttribute('data-foo') vs dataset.foo
Check data attribute: hasAttribute vs dataset
getAttribute vs dataset (without explicit loop)
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