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Switch vs Object Literals 3
(version: 0)
Comparing performance of:
Switch vs Object literal
Created:
2 years ago
by:
Guest
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Script Preparation code:
var type = 'coke'; var drink;
Tests:
Switch
function getDrink(type) { switch(type) { case 'coke': drink = 'Coke'; break; case 'pepsi': drink = 'Pepsi'; break; default: drink = 'Unknown drink!'; } } getDrink(type)
Object literal
function getDrink(type) { const drinks = { coke: 'Coke', pepsi: 'Pepsi', default: 'Unknown drink!' } drink = drinks[type] || drinks.default; } getDrink(type)
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Switch
Object literal
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 dive into the world of JavaScript microbenchmarks! The provided JSON represents two test cases for a benchmark: `Switch` and `Object Literal`. Both tests aim to compare the performance of different approaches to achieve a specific result. **What is tested?** In this case, we're testing the performance of two methods: 1. **Switch statement**: The first test case uses a traditional `switch` statement with a variable `type` that determines which value is assigned to the `drink` variable. 2. **Object literal**: The second test case uses an object literal (`{}`) to store the drink names and then accesses them using the `type` variable. **Options compared** The two options being compared are: 1. **Switch statement**: This traditional approach uses a conditional statement with multiple cases to determine which value to assign. 2. **Object literal**: This modern approach uses an object to store key-value pairs, allowing for easier access and modification. **Pros and Cons of each approach:** * **Switch statement**: + Pros: Simple, easy to understand, and works well for small number of cases. + Cons: Can become cumbersome with many cases, may not be as readable or maintainable. * **Object literal**: + Pros: More scalable, allows for easy addition or removal of keys, and can improve readability. + Cons: May require more time to understand the syntax, and accessing values by key might be slower than using a switch statement. **Other considerations:** In both cases, we're not considering other factors that could impact performance, such as: * The size of the input data (e.g., how many possible `type` values) * Optimizations or caching * Compiler optimizations **Library and syntax** There is no specific library mentioned in the benchmark definition. However, the use of a variable `drink` is not necessary and can be removed to simplify the code. The tests do not utilize any special JavaScript features or syntax, such as async/await, Promises, or Generators. **Alternatives:** If you want to explore other approaches for this type of benchmark, consider these alternatives: * **Function calls**: Instead of using a switch statement or object literal, you could use function calls with different arguments. * **Array lookups**: Use arrays to store the drink names and access them using array indices. * **Regular expressions**: Use regular expressions to match the input `type` against predefined patterns. Keep in mind that these alternatives might not be as readable or maintainable as the original switch statement or object literal approaches.
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