Benchmark: Switch vs Object Literals 2

Script Preparation code:

var type = 'coke';
var drink;

Tests:

Switch
switch(type) { case 'coke': drink = 'Coke'; break; case 'pepsi': drink = 'Pepsi'; break; default: drink = 'Unknown drink!'; }
Object literal
function getDrink(type) { const drinks = { coke: 'Coke', pepsi: 'Pepsi', default: 'Unknown drink!' } return drinks[type] || drinks.default; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Switch
Object literal

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks.

**What is being tested?**

The benchmark tests two different approaches to determine the drink type based on user input: `switch` statements and object literals.

**Options compared:**

1. **Switch statement**: This approach uses a traditional `switch` statement to check the value of the `type` variable and assign the corresponding drink name to the `drink` variable.
2. **Object literal**: This approach uses an object literal to store the drink types and their corresponding names. The function `getDrink(type)` returns the value associated with the `type` parameter, or a default value if it's not found in the object.

**Pros and Cons:**

1. **Switch statement**:
	* Pros:
		+ Simple and concise code
		+ Easy to understand for beginners
	* Cons:
		+ Can be slower due to the overhead of the `switch` statement
		+ May not be as flexible or extensible as object literals
2. **Object literal**:
	* Pros:
		+ More flexible and extensible than switch statements
		+ Can be faster since objects are typically optimized for lookup operations
	* Cons:
		+ Requires more code to set up the object literal
		+ May require additional memory to store the object

**Library:**

There is no explicit library mentioned in the benchmark, but it's likely that the `switch` statement example uses the JavaScript built-in `switch` keyword.

**Special JS feature or syntax:**

There are a few features and syntax used in this benchmark:

1. **Template literals**: The `template literal` syntax (`\r\n` is used to create a new line) is used to define the `Script Preparation Code`.
2. **F-strings**: Not used in this example, but f-strings (formatted string literals) are not supported in older JavaScript versions, so it's possible that some browsers or environments might not support them.

**Other alternatives:**

If you're interested in exploring other alternatives for this benchmark, here are a few options:

1. **Ternary operator**: Instead of using an object literal, you could use a ternary operator to achieve the same result.
2. **Regular expressions**: You could use regular expressions to match the `type` value and return the corresponding drink name.
3. **Map data structure**: Similar to object literals, but with more flexibility and extensibility.

Keep in mind that each alternative has its pros and cons, and the best approach will depend on your specific use case and requirements.

**Benchmark preparation code:**

The benchmark preparation code is provided as part of the `Script Preparation Code`:
```javascript
var type = 'coke';
var drink;
```
This code sets up the `type` variable with a value of `'coke'` and declares a variable `drink` without assigning it an initial value.

**Individual test cases:**

The two individual test cases are:

1. **Switch**
```javascript
switch(type) {
  case 'coke':
    drink = 'Coke';
    break;
  case 'pepsi':
    drink = 'Pepsi';
    break;
  default:
    drink = 'Unknown drink!';
}
```
2. **Object literal**
```javascript
function getDrink(type) {
  const drinks = {
    coke: 'Coke',
    pepsi: 'Pepsi',
    default: 'Unknown drink!'
  };
  return drinks[type] || drinks.default;
}
```

Related benchmarks:

Switch vs Object Literals 2 (version: 0)

Comparing performance of: Switch vs Object literal

Created: 2 years ago by: Guest

Jump to the latest result

Switch

Object literal

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):