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weweewdwr4
(version: 0)
Compare cloning element vs creating a new one
Comparing performance of:
C1 vs C2
Created:
2 years ago
by:
Guest
Go to the latest result
Script Preparation code:
function createExample() { var el = document.createElement('div'); el.className = 'class-1 class-2 class-3'; el.id = 'example'; el.textContent = 'Test'; return el; }
Tests:
C1
var ex = createExample(); var i = 1000; while (i--) { var e = ex.cloneNode(true); }
C2
var ex = createExample(); var Clone = Node.prototype.cloneNode.bind(ex); var i = 1000; while (i--) { var e = Clone(true); }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
C1
C2
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
2 years ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Browser/OS:
Chrome 126 on Mac OS X 10.15.7
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<iframe src="https://measurethat.net/Embed?id=532797" width="100%" height="500px"></iframe>
C1
2K/s
C2
2K/s
View exact numbers
Test name
Executions per second
✓
C1
2,075 Ops/sec
C2
2,049 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark definition and test cases to understand what is being tested. **Benchmark Definition** The benchmark compares two approaches: 1. Cloning an element using its `cloneNode(true)` method. 2. Creating a new element from scratch. The script preparation code provides a reusable function `createExample()` that creates a new `div` element with some predefined classes and text content. **Options Compared** The two options being compared are: * **C1**: Cloning the original element using `cloneNode(true)`. This approach creates a deep copy of the element, including all its child nodes. * **C2**: Creating a new element from scratch using an existing method, `Node.prototype.cloneNode.bind(ex)`. In this case, the `bind()` method is used to bind the `cloneNode()` function to the original element (`ex`), creating a new function that can be called without explicitly referencing the original element. **Pros and Cons of Each Approach** * **C1 (Cloning)**: + Pros: - Creates a deep copy of the element, including child nodes. - Can be faster for large elements or complex structures. + Cons: - May incur overhead due to recursive cloning of child nodes. - Can lead to performance issues if not implemented correctly (e.g., creating multiple copies of the same node). * **C2 (Creating from scratch)**: + Pros: - Does not create multiple copies of the same node. - Can be faster for simple elements or small structures. + Cons: - Creates a new element, which can lead to memory overhead if not done efficiently. **Library Used** The benchmark uses the `Node.prototype.cloneNode()` method, which is part of the DOM API. This method creates a shallow copy of the specified node or a selection of nodes. The `bind()` method is used to create a new function that binds the original element (`ex`) to the `cloneNode()` function. **Special JavaScript Feature/Syntax** There is no special JavaScript feature or syntax mentioned in this benchmark definition. **Other Considerations** When creating benchmarks, it's essential to consider factors like: * Browser and device compatibility * Network latency and overhead (if testing online) * System resource constraints (e.g., CPU, memory, disk space) In addition to the provided benchmark definition, other alternatives for measuring performance can include: * Using a profiling tool to analyze the execution time of individual functions or methods. * Implementing multiple iterations or variations of each test case to better understand performance characteristics. * Using external libraries or tools that provide built-in benchmarking capabilities. Keep in mind that the choice of benchmarking approach and tool depends on the specific use case, system resources, and desired outcome.
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weweewdwr41
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