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no type coercion, switch case vs bounce pattern vs ternary
(version: 0)
Comparing performance of:
switch case vs bounce patttern vs ternary
Created:
3 years ago
by:
Guest
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Tests:
switch case
function thing(e) { switch (e) { case 0: return "0"; case 1: return "1"; case 2: return "2"; case 3: return "3"; default: return ""; } } for (let t = 0; 1e5 > t; t++) thing(0), thing(2), thing(6);
bounce patttern
function bounce(x) { if (x === 0) return "0"; if (x === 1) return "1"; if (x === 2) return "2"; if (x === 3) return "3"; return "" } for (let t = 0; 1e5 > t; t++) bounce(0), bounce(2), bounce(6);
ternary
function bounce(x) { return 0 === x ? "0" : 1 === x ? "1" : 2 === x ? "2" : 3 === x ? "3" : ""; } for (let t = 0; 1e5 > t; t++) bounce(0), bounce(2), bounce(6);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
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Test case name
Result
switch case
bounce patttern
ternary
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of JavaScript benchmarks! The provided JSON represents a benchmarking test created on MeasureThat.net, which allows users to compare the performance of different approaches in JavaScript. The test consists of three individual test cases: "switch case", "bounce pattern", and "ternary". **Benchmark Definition** The overall benchmark definition is not explicitly stated in the provided JSON, but based on the individual test cases, we can infer that it's a comparison of the three approaches: 1. **Switch Case**: Using a traditional `switch` statement to determine which string to return. 2. **Bounce Pattern**: Using an array-like object with multiple `if` statements to determine which string to return. 3. **Ternary**: Using the ternary operator (`?`) to concisely express the same logic as the other two approaches. **Options being compared** The three options are: 1. **Switch Case**: A traditional `switch` statement. 2. **Bounce Pattern**: An array-like object with multiple `if` statements. 3. **Ternary**: The ternary operator (`?`) used for conditional expressions. **Pros and Cons of each approach:** * **Switch Case**: + Pros: Simple, easy to understand, and well-supported by most JavaScript engines. + Cons: Can be slower than other approaches due to the overhead of branch prediction and cache misses. * **Bounce Pattern**: + Pros: Allows for a single loop iteration and can be optimized with caching or other techniques. + Cons: Less intuitive than traditional `switch` statements, and its syntax can make it harder to read and maintain. * **Ternary**: + Pros: Concise and easy to read, making it an attractive option for simple logic. + Cons: Can lead to longer execution times due to the creation of a temporary string object. **Library usage** In this benchmark, there is no explicit library usage. However, some libraries like `Lodash` or `Underscore.js` might be used to implement optimized versions of these approaches (e.g., using ` _.map()` for the bounce pattern). **Special JS features or syntax** There are no special JavaScript features or syntax explicitly mentioned in this benchmark. **Other alternatives** Some alternative approaches that could be explored in this benchmark include: * **Object literal**: Using an object with a single property to determine which string to return. * **Array methods**: Utilizing array methods like `map()` and `reduce()` for more concise logic. * **Regular expressions**: Leveraging regular expressions to simplify the logic. **Conclusion** In conclusion, this benchmark provides a useful comparison of three different approaches in JavaScript: traditional `switch` statements, bounce patterns, and ternary operators. By understanding the pros and cons of each approach, developers can make informed decisions when choosing the best method for their specific use cases.
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