Benchmark: switch vs if - with match

HTML Preparation code:

<div class="test"></div>

Script Preparation code:

var v = 'HIJ';

Tests:

switch
switch (v) { case 'DEF': case 'HIJ': case 'KLM': console.log('bar') default: ; }
if
if (v === 'DEF' || v === 'HIJ' || v === 'KLM') { console.log('foo') }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
switch
if

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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

LLMs can make mistakes. Check important info.

I'd be happy to help you understand what's being tested in this JavaScript microbenchmark.

**Benchmark Overview**

The benchmark compares the execution performance of two approaches: a traditional `if` statement and a `switch` statement with the `match` method.

**Options Compared**

There are two options being compared:

1. **Traditional If Statement**: This is a straightforward conditional statement that checks if the value `v` matches any of the specified strings using the `===` operator.
2. **Switch Statement with Match Method**: This uses the `switch` keyword to check if the value `v` matches any of the specified strings, and if so, executes the corresponding block of code.

**Pros and Cons**

Here are some pros and cons of each approach:

* **Traditional If Statement**:
	+ Pros: Simple, easy to read, and maintain.
	+ Cons: May have performance issues if the number of possible values is large.
* **Switch Statement with Match Method**:
	+ Pros: Can be more efficient than traditional `if` statements for large numbers of possible values.
	+ Cons: Less intuitive and less readable than traditional `if` statements, especially for developers who are not familiar with the `match` method.

**Library and Purpose**

In this benchmark, the library being used is the built-in JavaScript `switch` statement. The `match` method is a part of the JavaScript standard library, which allows you to perform pattern matching on strings.

**Special JS Feature/Syntax**

There are no special JavaScript features or syntaxes being tested in this benchmark.

**Other Considerations**

When deciding between these two approaches, consider the following factors:

* Performance: If you need to handle a large number of possible values, the `switch` statement with the `match` method may be more efficient.
* Readability and maintainability: If code readability and maintainability are important, the traditional `if` statement may be a better choice.

**Alternatives**

Other alternatives for handling conditional statements include:

* Using a library like Lodash or Ramda to handle conditional statements.
* Using a more modern approach like JavaScript's `switch` statement with the `matchAll()` method (although this is not being tested in this benchmark).
* Using a different programming paradigm, such as functional programming.

I hope this helps clarify what's being tested in this JavaScript microbenchmark!

Related benchmarks:

switch vs if - with match (version: 0)

Comparing performance of: switch vs if

Created: 4 years ago by: Guest

Jump to the latest result

switch

if

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):