# type-ahead command

The `type-ahead` command enables or disables the type ahead feature for
 the current PIB or displays the current status if no options are provided.

## Syntax

```
 type-ahead {(options}
```

## Parameter(s)

| options | port.number | Integer number that displays or changes settings for the port number. If not specified, the type_ahead command is set on the current port. |
| --- | --- | --- |
| f | Sets the type-ahead command to Off. Windows only: This option is not supported for line 0. | |
| n | Sets the type-ahead command to On. This is the default. | |
| s | Suppresses output of the status message. | |

## Description

Warning: Pushing a level or issuing a break clears all characters from the type-ahead
 buffer.

 The type-ahead command is the process of buffering characters entered at a
 keyboard to allow for faster typing. When type-ahead is On, the system allows
 typing in characters *ahead* before actually being displayed.

 For example: After entering a select command at TCL, a
 save-list command can be entered into the type-ahead buffer. When the
 select finishes, the save-list command is entered
 immediately, provided an Enter was issued at the end of the command.

 The command does not display on the screen until the previous process returns to TCL. There is
 no limit to the number of commands that can be typed ahead.

## Example(s)

**Example 1**

```

 type-ahead
 [1312] Type-ahead is on.
```

 **Example 2**

```

 type-ahead (f
 [1313] Type-ahead is off.
```

 **Example 3**

```

 type-ahead (n
 [1312] Type-ahead is on.
```

## See also

- [dcd command](https://d3codex.com/tcl/dcd-command/)
- [ta statement](https://d3codex.com/pickbasic-flashbasic/ta-statement/)
- [u0005 user exit](https://d3codex.com/pickbasic-flashbasic/u0005-user-exit/)
- [xonoff command](https://d3codex.com/tcl/xonoff-command/)

---
Source: https://d3codex.com/tcl/type-ahead-command/ - part of the D3Codex reference.