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=== vs .includes
(version: 0)
Compare perfomance between === operator and Array.includes
Comparing performance of:
=== vs includes
Created:
4 years ago
by:
Guest
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Tests:
===
const A = 'A'; const B = 'B'; const arr = new Array(10000); arr[arr.length-1] = A; for(let i=0; i<arr.length; i++) { if (arr[i] === A || arr[i] === B) { break; } }
includes
const A = 'A'; const B = 'B'; const arr = new Array(10000); arr[arr.length-1] = A; for(let i=0; i<arr.length; i++) { if ([A,B].includes(arr[i])) { break; } }
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Suite status:
<idle, ready to run>
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Test case name
Result
===
includes
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N/A
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N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark. **Benchmark Purpose** The benchmark is designed to compare the performance of two different ways of performing string comparisons in JavaScript: 1. Using the `===` operator (strict equality) 2. Using the `Array.includes()` method **Options Compared** In this case, we have two options being compared: * Option 1: `===` operator * Option 2: `Array.includes()` The benchmark is trying to determine which of these two methods is faster. **Pros and Cons** **Option 1: `===` operator** Pros: * Generally faster for simple string comparisons * More predictable behavior, as it's a built-in operator that only checks for exact equality Cons: * Can be slower when dealing with large datasets or complex data structures * May not handle cases where the comparison involves non-string values (e.g., numbers, booleans) **Option 2: `Array.includes()` method** Pros: * More flexible and efficient for searching arrays of strings * Handles edge cases like null or undefined values Cons: * Can be slower than a simple `===` operator for small datasets * May have performance implications when dealing with large arrays or complex data structures **Library/Functionality Used** In the provided benchmark, we don't see any libraries being explicitly used. However, the `Array.includes()` method is part of the built-in JavaScript API. **Special JS Feature/Syntax** There are no special JavaScript features or syntax being used in this benchmark. The code uses basic JavaScript syntax and does not include any advanced features like async/await, Promises, or modern JavaScript APIs like Web Workers or WebAssembly. **Other Alternatives** If you want to explore alternative approaches for string comparisons in JavaScript, here are a few options: * Using `String.prototype.indexOf()` method * Implementing a custom string comparison function using regular expressions * Utilizing libraries like Lodash or Ramda for functional programming and string manipulation * Leveraging modern JavaScript APIs like Web Workers or WebAssembly for parallel processing Keep in mind that each of these alternatives may have their own trade-offs in terms of performance, readability, and maintainability.
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