# Examples

## Function
 example is used to demonstrate common writing methods of BT and help transition from basic syntax to actual scripts.

## Basic script
```bt
name = 'BT'
println `Hello ${name}`
```

## Function and return value
```bt
fn add(a, b) {
    a + b
}

println add(1, 2)
```

## Traverse data
```bt
for index, value in [1, 2, 3] {
    println value
}
```

## Web return
```bt
header('Content-Type', 'application/json')
json({ok: true})
```