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(version: 0)
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Comparing performance of:
lod vs normal
Created:
7 years ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<script>https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.core.js</script>
Script Preparation code:
var obj = {a:{b:{c:{d:{e:2}}}}}; var val = {};
Tests:
lod
_.has(obj, 'obj.a.b.c.d.e');
normal
!!((((obj.a || val).b || val).c || val).d || val).e
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
lod
normal
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 provided benchmark and explain what's being tested, compared, and other considerations. **Benchmark Context** MeasureThat.net is a platform where users can create and run JavaScript microbenchmarks. The goal is to compare different approaches to achieve optimal performance in various scenarios. **Benchmark Definition JSON** The benchmark definition provides two test cases: 1. `"Benchmark Definition": "_.has(obj, 'obj.a.b.c.d.e');"` * This benchmark tests the usage of the `_` function (Lodash) for property access on an object (`obj`) with multiple nested properties. 2. `"Benchmark Definition": "!!((((obj.a || val).b || val).c || val).d || val).e"` * This benchmark tests the usage of a conditional expression to access a nested property (`e`) on an object (`obj`) or using a default value (`val`). **Options Compared** The two options being compared are: 1. Using Lodash's `_` function for property access with multiple nested properties. 2. Implementing a conditional expression to access nested properties. **Pros and Cons of Each Approach** 1. **Lodash's `_` function:** * Pros: + Provides a concise way to access nested properties, reducing boilerplate code. + Often faster than implementing a custom solution due to optimizations in Lodash. * Cons: + Requires the addition of an external library (Lodash). + May not be suitable for all use cases or environments where Lodash is not available. 2. **Conditional Expression:** * Pros: + No additional dependencies, as it only relies on native JavaScript functionality. + Can be more readable and easier to understand in some cases. * Cons: + May require more code and boilerplate for complex scenarios. + Could potentially lead to slower performance due to the complexity of the expression. **Other Considerations** 1. **Library Usage:** The benchmark uses Lodash, which is a popular utility library for JavaScript. Its purpose is to provide a set of functions that can be used to simplify common tasks, such as array manipulation and object traversal. 2. **Special JS Features or Syntax:** None are mentioned in the provided benchmark definition. **Alternatives** Other approaches could be considered, such as: 1. Using native JavaScript properties (`in` operator) instead of Lodash's `_` function. 2. Implementing a custom recursive function to access nested properties. However, these alternatives may not provide significant performance benefits and might add complexity or boilerplate code. In summary, the benchmark provides two test cases that compare the use of Lodash's `_` function versus implementing a conditional expression for accessing nested properties in JavaScript objects. The results will help determine which approach is more efficient and suitable for different use cases.
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