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lodash size vs simple if
(version: 0)
Comparing performance of:
simple if vs Lodash Size
Created:
4 years ago
by:
Guest
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HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
var arr = new Array(10).fill(""); var arr2 = undefined;
Tests:
simple if
if(arr) console.log("yup") if(arr2) console.log("yup")
Lodash Size
_.size(arr); if(_.size(arr) > 0) console.log("yup") if(_.size(arr2) > 0) console.log("yup")
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
simple if
Lodash Size
Fastest:
N/A
Slowest:
N/A
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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. **Benchmark Overview** The benchmark compares two approaches to check if an array is empty: using a simple `if` statement versus using the Lodash library's `_.size()` function. **Options Compared** 1. **Simple `if` statement**: This approach uses a conditional statement (`if`) to check if the array `arr` or `arr2` is truthy (i.e., not empty). If either of them is truthy, it logs "yup" to the console. 2. **Lodash `_.size()` function**: This approach uses the Lodash library's `_.size()` function to get the length of the array. It then checks if the length is greater than 0 and logs "yup" to the console if true. **Pros and Cons** 1. **Simple `if` statement**: * Pros: Simple, easy to understand, and efficient. * Cons: May be slower due to the overhead of the `if` statement. 2. **Lodash `_.size()` function**: * Pros: More concise and expressive, as it explicitly conveys the intention of getting the array length. * Cons: Requires an additional library import (Lodash) and may be slower due to the overhead of the function call. **Lodash Library** The Lodash library is a popular JavaScript utility library that provides a wide range of functions for tasks like string manipulation, array manipulation, and more. In this benchmark, `_.size()` is used to get the length of an array. **Special JS Feature/Syntax (none mentioned)** There are no special JavaScript features or syntax used in this benchmark. **Other Alternatives** If you wanted to compare other approaches to check if an array is empty, some alternatives could be: * Using `arr.length === 0` (a more concise and efficient alternative to the simple `if` statement) * Using a while loop to iterate over the array until it finds an element (e.g., `while(arr[0] !== undefined) console.log("yup")`) * Using a function that checks if an array is empty, such as `function isEmpty(arr) { return arr.length === 0; }` and then call this function with `if(isEmpty(arr)) ...` However, these alternatives are not part of the provided benchmark, so they were not compared.
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