Benchmark: Switch vs Object Function vs Object Property

Script Preparation code:

var str = 'abc';
str = str.charAt(Math.floor(Math.random() * 3));

AخA
 
var str = 'abc';str = str.charAt(Math.floor(Math.random() * 3));

Tests:

Switch

function test (str) {
  switch (str) {
    case 'a': return 'A'; break;
    case 'b': return 'B'; break;
    case 'c': return 'C'; break;
  }
}

console.log(test(str));

​x
 
function test (str) {  switch (str) {    case 'a': return 'A'; break;    case 'b': return 'B'; break;    case 'c': return 'C'; break;  }}​console.log(test(str));

Object Function
const obj = { a: () => 'A', b: () => 'B', c: () => 'C' }; console.log(obj[str]());
const obj = {
a: () => 'A',
b: () => 'B',
c: () => 'C'
};

console.log(obj[str]());
Object Property
const obj = { a: 'A', b: 'B', c: 'C' }; console.log(obj[str]);
const obj = {
a: 'A',
b: 'B',
c: 'C'
};

console.log(obj[str]);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

Memory measurements supported only in Chrome.
For precise memory measurements Chrome must be launched with --enable-precise-memory-info flag.
More information: Monitoring JavaScript Memory

Test case name	Result
Switch
Object Function
Object Property

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 11 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36

Browser/OS: Chrome 125 on Windows

View result in a separate tab

Test name	Executions per second
Switch	149162.3 Ops/sec
Object Function	149529.0 Ops/sec
Object Property	150693.9 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):

The provided JSON represents a JavaScript benchmark test case on the MeasureThat.net website. The test compares the performance of three different approaches:

Switch Statement: This approach uses an if-else statement with a switch keyword to handle different cases.
Object Function: This approach creates an object with function properties and calls the corresponding function based on the value of the property.
Object Property: Similar to Object Function, but instead of functions, it uses property values directly.

Options Compared

Execution speed (ExecutionsPerSecond): Measures how many times each test case executes per second.
Browser: The browser used to run the test.
DevicePlatform: The device platform used to run the test (Desktop).
OperatingSystem: The operating system used to run the test (Windows).

Pros and Cons of Each Approach

Switch Statement:
- Pros: Simple, easy to read, and maintain.
- Cons: Can be slower than other approaches due to the overhead of the switch statement.
Object Function:
- Pros: Allows for more flexibility and encapsulation, as functions can have their own behavior.
- Cons: Can lead to unnecessary function calls and create a "fat" object if not used carefully.
Object Property:
- Pros: Simple, easy to read, and maintain, similar to the Switch Statement approach.
- Cons: Similar to Object Function, it can lead to unnecessary property lookups.

Library Used

None explicitly mentioned in the provided JSON. However, some libraries might be used indirectly by the frameworks or environments running the benchmark tests (e.g., browser-specific APIs).

Special JS Feature/ Syntax

There is no special JavaScript feature or syntax used in this benchmark test case.

Other Considerations

The benchmark only measures performance and does not account for other factors like code readability, maintainability, or scalability.
It's essential to note that the results may vary depending on the specific use case, context, and environment where the code is deployed.

Alternatives

If you need more detailed insights into performance or other aspects of your JavaScript code, consider using:

Browser DevTools: Built-in tools for inspecting, debugging, and optimizing web pages.
Node.js Performance Tools: Official tools for measuring node.js performance.
Third-party benchmarking libraries like benchmark.js, speedtest.net, or perf.js.

Please keep in mind that the results of these alternatives might be different due to the specific requirements and context of your project.

LLMs can make mistakes. Check important info.

The provided JSON represents a JavaScript benchmark test case on the MeasureThat.net website. The test compares the performance of three different approaches:

1. **Switch Statement**: This approach uses an `if-else` statement with a `switch` keyword to handle different cases.
2. **Object Function**: This approach creates an object with function properties and calls the corresponding function based on the value of the property.
3. **Object Property**: Similar to Object Function, but instead of functions, it uses property values directly.

**Options Compared**

* Execution speed (ExecutionsPerSecond): Measures how many times each test case executes per second.
* Browser: The browser used to run the test.
* DevicePlatform: The device platform used to run the test (Desktop).
* OperatingSystem: The operating system used to run the test (Windows).

**Pros and Cons of Each Approach**

1. **Switch Statement**:
	* Pros: Simple, easy to read, and maintain.
	* Cons: Can be slower than other approaches due to the overhead of the `switch` statement.
2. **Object Function**:
	* Pros: Allows for more flexibility and encapsulation, as functions can have their own behavior.
	* Cons: Can lead to unnecessary function calls and create a "fat" object if not used carefully.
3. **Object Property**:
	* Pros: Simple, easy to read, and maintain, similar to the Switch Statement approach.
	* Cons: Similar to Object Function, it can lead to unnecessary property lookups.

**Library Used**

None explicitly mentioned in the provided JSON. However, some libraries might be used indirectly by the frameworks or environments running the benchmark tests (e.g., browser-specific APIs).

**Special JS Feature/ Syntax**

There is no special JavaScript feature or syntax used in this benchmark test case.

**Other Considerations**

* The benchmark only measures performance and does not account for other factors like code readability, maintainability, or scalability.
* It's essential to note that the results may vary depending on the specific use case, context, and environment where the code is deployed.

**Alternatives**

If you need more detailed insights into performance or other aspects of your JavaScript code, consider using:

1. Browser DevTools: Built-in tools for inspecting, debugging, and optimizing web pages.
2. Node.js Performance Tools: Official tools for measuring node.js performance.
3. Third-party benchmarking libraries like benchmark.js, speedtest.net, or perf.js.

Please keep in mind that the results of these alternatives might be different due to the specific requirements and context of your project.

Related benchmarks:

Switch vs Object Function vs Object Property (version: 0)

Compares performance of using a 'switch' statement vs object functions and object properties

Comparing performance of: Switch vs Object Function vs Object Property

Created: 5 years ago by: Guest

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