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lodash isNil vs native js
(version: 0)
Comparing performance of:
lodash vs native
Created:
5 years ago
by:
Guest
Go to the latest result
HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
var a = null; var b = undefined; var c = NaN; var d = false; var e = 'a'; var f = 0;
Tests:
lodash
_.isNil(a); _.isNil(b); _.isNil(c); _.isNil(d); _.isNil(e); _.isNil(f);
native
a == null; b == null; d == null; e == null; f == null;
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
lodash
native
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36 Edg/132.0.0.0
Browser/OS:
Chrome 132 on Windows
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=584074" width="100%" height="500px"></iframe>
native
162.0M/s
lodash
105.1M/s
View exact numbers
Test name
Executions per second
✓
native
162,049,488 Ops/sec
lodash
105,052,152 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and explain what is being tested, compared, and their pros/cons. **What is being tested?** The test compares two approaches to check if a value is null or undefined in JavaScript: 1. **Lodash (specifically, `_.isNil` function)**: This is a utility function from the popular JavaScript library Lodash that checks if an object is null, undefined, or has a value of zero (NaN). 2. **Native JavaScript**: The native approach uses the `== null` operator to check if a variable is null or undefined. **Options compared** The test case "native" uses the native JavaScript approach, which directly compares the variable with `null`. In contrast, the test case "lodash" uses the Lodash library's `_.isNil` function. **Pros and Cons of each approach:** 1. **Native JavaScript (`== null` operator)**: * Pros: + Fastest execution time + Most efficient way to check for null or undefined values in JavaScript + Wide support across browsers and platforms * Cons: + Can be brittle if the variable's value is changed unexpectedly (e.g., due to a bug in the code) 2. **Lodash (`_.isNil` function)**: * Pros: + Provides an explicit way to check for null or undefined values, making the code more readable + Can handle edge cases and NaN values * Cons: + Slower execution time compared to native JavaScript + Requires including the Lodash library in the test environment **Library: Lodash** Lodash is a popular JavaScript utility library that provides various functions for common tasks, such as array manipulation, string formatting, and more. In this specific case, `_.isNil` checks if an object is null, undefined, or has a value of zero (NaN). **Special JS feature/syntax: None mentioned** No special JavaScript features or syntax are used in this benchmark. **Other alternatives** If you were to implement the native approach using only vanilla JavaScript without any libraries, you could use the following expression: ```javascript if (a === null || a === undefined) { // handle null or undefined value } ``` Alternatively, if you wanted to use a different library for this task, you might consider other options like `===` and `Object.is()`, but these are not as commonly used or well-supported as the native approach. Overall, the test is primarily focused on comparing the performance of checking for null or undefined values in JavaScript using Lodash versus the native approach.
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lodash isNil vs === null || === undefined
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