# String.concat

## Function

Concatenate the current string and all parameters in sequence into a new string.

## Syntax

```bt
string.concat(value1, value2, ...)
```

## Parameters

| Parameters | Type | Required | Default value | Description |
| ------ | ------ | ------ | ------ | ------ |
| valueN | Any | No | None | The value to be spliced will be converted to a string first when called. |

## Return value

| Type | Description |
| ------ | ------ |
| String | Returns the new string after concatenation. |

## Example

```bt
text = 'BT'
result = text.concat(' ', 'Lang')

// Output: BT Lang
print result
```

## Notes

- The original string is not modified.
- Array and object parameters will be concatenated according to BT JSON string rules.