> For the complete documentation index, see [llms.txt](https://supernova-developers.gitbook.io/supernova-dsm/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://supernova-developers.gitbook.io/supernova-dsm/pulsar-language/flows/switch-case-default.md).

# Switch / Case / Default

A `switch` statement checks the source and compares it against several declared patterns. It then executes the first `case` pattern that resolves to `true`. or a `default` one if nothing resolves to true (and `default` is provided).

A `switch` statement is  equivalent to chaining multiple [`if`](/supernova-dsm/pulsar-language/flows/if-else-if-else.md) statements one after another. 

### Syntax

Basic syntax of `switch` tag is as follows:

```swift
{[ switch [statement] ]}
   {[ case 1 ]}
   Executes when statement equals 1
{[/]}
```

You can chain as many cases one after another:

```swift
{[ switch [statement] ]}
   {[ case 1 ]}
   Executes when statement equals 1
   {[ case 2 ]}
   Executes when statement equals 2
   {[ case 3 ]}
   Executes when statement equals 3
{[/]}
```

Additionally, compared to strongly typed languages, you can check against multiple data types at the same time:

```swift
{[ switch [statement] ]}
   {[ case 1 ]}
   Executes when statement equals 1
   {[ case true ]}
   Executes when statement equals 2
   {[ case "Some text" ]}
   Executes when statement equals 3
{[/]}
```

### Default fallback

Additionally, you can use `default` case to fallback to it when all other cases fail. Default case is optional:

```swift
{[ switch [statement] ]}
   {[ case 1 ]}
   Executes when statement equals 1
   {[ case 2 ]}
   Executes when statement equals 2
   {[ default ]}
   Executes when statement equals to anything other than 1 or 2
{[/]}
```