@inquirer/input

Interactive free text input component for command line interfaces. Supports validation, filtering, transformation, etc.

Installation

npm install @inquirer/input

yarn add @inquirer/input

Usage

import input from '@inquirer/input';

const answer = await input({ message: 'Enter your name' });

Options

Property	Type	Required	Description
message	string	yes	The question to ask
default	string	no	Default value if no answer is provided (clear it by pressing backspace)
transformer	(string, { isFinal: boolean }) => string	no	Transform/Format the raw value entered by the user. Once the prompt is completed, isFinal will be true. This function is purely visual, modify the answer in your code if needed.
validate	string => boolean | string | Promise<string | boolean>	no	On submit, validate the filtered answered content. When returning a string, it'll be used as the error message displayed to the user. Note: returning a rejected promise, we'll assume a code error happened and crash.
theme	See Theming	no	Customize look of the prompt.

Theming

You can theme a prompt by passing a theme object option. The theme object only need to includes the keys you wish to modify, we'll fallback on the defaults for the rest.

type Theme = {
  prefix: string;
  spinner: {
    interval: number;
    frames: string[];
  };
  style: {
    answer: (text: string) => string;
    message: (text: string) => string;
    error: (text: string) => string;
    defaultAnswer: (text: string) => string;
  };
};

License

Copyright (c) 2023 Simon Boudrias (twitter: @vaxilart)
Licensed under the MIT license.