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Switch vs Object Literal - SR Test
(version: 0)
Testing the speed of JS switch vs obj literal
Comparing performance of:
Switch vs Object Literal
Created:
5 years ago
by:
Guest
Go to the latest result
Script Preparation code:
var str = 'abcdefghi'; str = str.charAt(Math.floor(Math.random() * 3));
Tests:
Switch
switch (str) { case 'a': console.log('A'); break; case 'b': console.log('B'); break; case 'c': console.log('C'); break; case 'd': console.log('D'); break; case 'e': console.log('E'); break; case 'f': console.log('F'); break; case 'g': console.log('G'); break; case 'h': console.log('H'); break; case 'i': console.log('I'); break; }
Object Literal
var objLiteral = { a: function() { console.log('A'); }, b: function() { console.log('B'); }, c: function() { console.log('C'); }, d: function() { console.log('D'); }, e: function() { console.log('E'); }, f: function() { console.log('F'); }, g: function() { console.log('G'); }, h: function() { console.log('H'); }, i: function() { console.log('I'); } } objLiteral[str]();
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:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36 Edg/132.0.0.0
Browser/OS:
Chrome 132 on Mac OS X 10.15.7
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=583931" width="100%" height="500px"></iframe>
Switch
335K/s
Object Literal
315K/s
View exact numbers
Test name
Executions per second
✓
Switch
334,867 Ops/sec
Object Literal
314,924 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Measuring the performance of JavaScript code is an essential task for any developer, and MeasureThat.net provides a fantastic platform to do just that. **What's being tested?** The provided JSON benchmark defines two test cases: `Switch` and `Object Literal`. Both tests measure the speed of executing a specific piece of JavaScript code. In the `Switch` test case, the script uses a traditional `switch` statement with multiple `case` clauses to determine which action to take based on the value of the string variable `str`. In the `Object Literal` test case, the script uses an object literal (an object defined using curly braces) and accesses its properties using the dot notation (`objLiteral[str]()`). The property names are assigned functions that log a specific message to the console. **Options compared** The two options being compared are: 1. **Switch statement**: A traditional `switch` statement is used to determine which action to take based on the value of the string variable `str`. 2. **Object Literal**: An object literal is used, and its properties are accessed using the dot notation (`objLiteral[str]()`). **Pros and Cons** * **Switch Statement:** + Pros: - Can be more concise for simple cases. - Can use a single expression to determine which branch to take. + Cons: - Can lead to slower performance due to the overhead of multiple `case` clauses. - May not be as efficient for large numbers of branches. * **Object Literal:** + Pros: - Can be more flexible and easier to maintain, especially for larger codebases. - Can avoid the overhead of a `switch` statement. + Cons: - Requires more syntax and can be less readable for simple cases. **Library and purpose** In both test cases, no external library is used. However, in the `Object Literal` test case, JavaScript's built-in object literal feature is utilized. **Special JS features or syntax** There are no special JavaScript features or syntax used in these tests. The code uses standard JavaScript constructs like `switch`, object literals, and function declarations. **Other alternatives** Other alternatives to these approaches could include: 1. **Conditional statements**: Using `if` statements with conditional logic can be another way to implement a similar logic flow. 2. **Array methods**: For larger datasets or more complex logic, array methods like `map()` or `filter()` might be more suitable. Keep in mind that the choice of implementation depends on the specific requirements and constraints of your project. **Benchmark result analysis** The provided benchmark results show the performance differences between the two options: * The `Switch` test case executed approximately 110.7 executions per second, while the `Object Literal` test case executed around 58.6 executions per second. This suggests that the traditional `switch` statement might be slower in this particular scenario due to its overhead and the need for multiple `case` clauses. However, it's essential to note that these results are specific to this benchmark and may not generalize to all use cases.
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