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_.includes vs equality check
(version: 0)
_.includes vs equality check
Comparing performance of:
_.includes vs equality check
Created:
3 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:
window.stringTobeChecked = "plus";
Tests:
_.includes
_.includes(["plus", "premium"],window.stringTobeChecked)
equality check
window.stringTobeChecked === "plus" || window.stringTobeChecked === "premium"
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
_.includes
equality check
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. **What is being tested?** MeasureThat.net is testing two different approaches to check if a string contains a specific value: 1. **_.includes() method**: This is a method from the Lodash library, which checks if an element exists in an array. 2. **Equality check using `===` operator**: This is a simple comparison between the `window.stringTobeChecked` variable and the strings "plus" or "premium". **Options compared** The benchmark compares two options: 1. **_.includes() method with Lodash library** * Pros: + Efficient for array-based operations, as it uses a C++-based algorithm. + Can be used to check if an element exists in an array without having to iterate over the entire array. * Cons: + Requires an external library (Lodash). + May have additional overhead due to the library's presence. 2. **Equality check using `===` operator** * Pros: + Simple and easy to understand. + No external libraries required. * Cons: + Can be slower than the _.includes() method, as it requires a full string comparison. + May not be suitable for large arrays or performance-critical applications. **Library - Lodash** Lodash is a popular JavaScript library that provides a wide range of utility functions. The `_.includes()` method is one of its most commonly used functions, which checks if an element exists in an array without modifying the original array. The presence of Lodash in this benchmark adds some overhead, as it requires additional resources to load and execute. However, the _.includes() method can be a useful tool for efficient array-based operations. **Special JS feature - `window.stringTobeChecked`** This variable is defined using `window.stringTobeChecked = "plus";`. The `window` object is a global object that provides access to properties of the window and its frames. Defining variables on the `window` object can be useful for testing purposes, as it allows you to create a local scope without affecting the global scope. **Other alternatives** If you want to compare these two approaches without using Lodash, you could use native JavaScript functions like `includes()` (available in modern browsers) or implement your own iterative loop to check if an element exists in an array. However, these alternatives may not be as efficient as the _.includes() method. For example, you could use the following code to implement a simple iterative loop: ```javascript function includes(array, value) { for (let i = 0; i < array.length; i++) { if (array[i] === value) return true; } return false; } ``` Keep in mind that this implementation has the same pros and cons as the _.includes() method: it's efficient but requires additional overhead due to the need for an iterative loop.
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