# confirm

A prompt that provides 2 options (confirm/deny) and can be controlled via single keypress.

## Example

![demo](https://assets.kazhala.me/InquirerPy/confirm.gif)

<details>
  <summary>Classic Syntax (PyInquirer)</summary>

```{eval-rst}
.. literalinclude :: ../../../examples/classic/confirm.py
   :language: python
```

</details>

<details open>
  <summary>Alternate Syntax</summary>

```{eval-rst}
.. literalinclude :: ../../../examples/alternate/confirm.py
   :language: python
```

</details>

## Keybindings

```{seealso}
{ref}`pages/kb:Keybindings`
```

```{include} ../kb.md
:start-after: <!-- start kb -->
:end-before: <!-- end kb -->
```

Besides the default keybindings, keybindings will be created for the parameter `confirm_letter` and `reject_letter` which
by default are `y` and `n` respectively.

Pressing `y` will answer the prompt with the value True and `n` will answer the prompt with the value False.

```
{
    "confirm": [{"key": "y"}, {"key": "Y"}],  # confirm the prompt
    "reject": [{"key": "n"}, {"key": "N"}],   # reject the prompt
}
```

## Using Different Letters For Confirm/Deny

```{tip}
You can also change the letter by using the `keybindings` parameter and change the value for "confirm" and "reject" key.
```

In certain scenarios using `Y/y` for "yes" and `N/n` for "no" may not
be appropriate (e.g. multilingual).

You can change this behavior by customising the following parameters:

- `confirm_letter`
- `reject_letter`
- `transformer`

```{hint}
Changing the `transformer` is also necessary as the default behavior will print `Yes` for `True`
value and `No` for `False` value.
```

```{note}
This have effects on keybindings, new keybindings will be created based on the value of `confirm_letter` and `reject_letter`
to answer the question with True/False.
```

<details>
  <summary>Classic Syntax (PyInquirer)</summary>

```{code-block} python
from InquirerPy import prompt

questions = [
  {
    "type": "confirm",
    "default": True,
    "message": "Proceed?",
    "confirm_letter": "s",
    "reject_letter": "n",
    "transformer": lambda result: "SIm" if result else "Não",
  }
]

result = prompt(questions=questions)
```

</details>

<details open>
  <summary>Alternate Syntax</summary>

```{code-block} python
from InquirerPy import inquirer

inquirer.confirm(
    message="Proceed?",
    default=True,
    confirm_letter="s",
    reject_letter="n",
    transformer=lambda result: "SIm" if result else "Não",
).execute()
```

</details>

## Default Value

The parameter `default` controls 2 behaviors for the prompt.

It affects how the instruction is displayed, whether the `confirm_letter` is capitalised or `reject_letter` is capitalised.

It affects what value to be returned when user directly hit the key `enter` instead of the `confirm_letter` or `reject_letter`.

By default, since `default` value is `False`, the `reject_letter` is capitalised.

```
? Proceed? (y/N)
```

If `default` is `True`, the `confirm_letter` is capitalised.

```
? Proceed? (Y/n)
```

## Reference

```{eval-rst}
.. autoclass:: InquirerPy.prompts.confirm.ConfirmPrompt
    :noindex:
```