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Kolbey's tests
(version: 0)
Comparing performance of:
_.unset vs delete
Created:
7 years ago
by:
Guest
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HTML Preparation code:
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>
Script Preparation code:
var o = {c:3,d:4}
Tests:
_.unset
_.set(o, 'a') _.set(o, 'b')
delete
o.a = 1; o.b = 2;
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
_.unset
delete
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the benchmark and explain what is being tested. **Overview** MeasureThat.net is a website that allows users to create and run JavaScript microbenchmarks. The provided JSON represents a benchmark created by Kolbey, which consists of two test cases: `_.unset` (using Lodash) and `delete`. **Benchmark Definition** The benchmark definition is a JavaScript code snippet that defines the test cases: ```json "Script Preparation Code": "var o = {c:3,d:4}", "Html Preparation Code": "<script src=\"https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js\"></script>" ``` The `Script Preparation Code` sets up an object `o` with two properties: `c` and `d`. The `Html Preparation Code` includes a reference to the Lodash library, which is used in one of the test cases. **Individual Test Cases** There are two test cases: 1. **_.unset** ```json "Benchmark Definition": "_.set(o, 'a')\r\n_.set(o, 'b')" ``` This test case uses the `_.set` function from Lodash to set two properties on the object `o`. The benchmark measures the execution time of this operation. 2. **delete** ```json "Benchmark Definition": "o.a = 1;\r\no.b = 2;" ``` This test case simply sets two properties on the object `o` using the dot notation (`o.a` and `o.b`). The benchmark measures the execution time of this operation. **Options Compared** In the context of this benchmark, there are only two options being compared: 1. **_.set vs delete**: The first test case uses Lodash's `_set` function to set properties on an object, while the second test case uses the dot notation (`.`) to set properties. 2. **Lodash library**: The `_.set` function is part of the Lodash library, which is included in the benchmark. **Pros and Cons** 1. **_.set vs delete**: * `.set` (Lodash): + Pros: provides a more concise way to set multiple properties on an object. + Cons: adds extra overhead due to the function call and the need for Lodash library. * `delete`: + Pros: simple and lightweight, does not require any additional libraries. + Cons: less concise than `.set`, requires more code to set multiple properties. 2. **Lodash library**: * Pros: provides a wide range of utility functions for common tasks, such as string manipulation and array operations. * Cons: adds extra overhead due to the need for an external library. **Other Considerations** 1. **Browser-specific optimizations**: The benchmark measures execution time on specific browsers (Chrome 66) and platforms (Desktop), which may not be representative of all use cases. 2. **Object initialization**: The benchmark initializes the object `o` with properties before running the tests, which may affect the results. **Alternatives** If you wanted to create a similar benchmark without using Lodash, you could: 1. Define a custom `_set` function that uses dot notation or bracket notation (`[key]`) to set properties. 2. Use a different library or utility functions for common tasks. 3. Measure execution time on different browsers or platforms. Keep in mind that creating a comparable benchmark would require careful consideration of the options, pros, and cons, as well as the specific requirements and constraints of your use case.
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Comments
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