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About the developer

eosterberg
233 Stars 72 Forks 41 Commits 2 Opened issues

Description

terminal.js is a dead simple JavaScript library for emulating a shell environment.

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terminaljs

terminal.js is a dead simple JavaScript library for emulating a shell environment.

Demo

Install

npm i terminal-js-emulator

Usage example

import Terminal from 'terminal-js-emulator';

let t1 = new Terminal('terminal-1'); t1.setHeight("400px"); t1.print('This is sample with some additional logic:') .print(Are you ready? Let's go!) .input(Hi! What's your name?, function (name) { t1.print(Welcome, ${name}!) .sleep(1000, function () { t1.print(We have more questions to follow.) .input(Enter your email, please:, function (email) { t1.password('Enter password:', function (password) { t1.print(Your name is "${name}" and your email is "${email}" and you have entered password "${password}".) .confirm(Is it true?, function (didConfirm) { t1.print(didConfirm ? 'You confirmed!' : 'You declined!') }); });

                });
    });

});

Properties and methods

.print(message)

Prints the message on a new line.

.input(message, callback)

Prints the message, and shows a prompt where the user can write. When the user presses enter, the callback function fires. The callback takes one argument, which is the user input.

.password(message, callback)

The same as input but the input of the user will be hidden just like an old-fashioned terminal.

.confirm(message, callback)

Displays a confirm message, with a " (y/n)" automatically appended at the end. The callback receives the yes/no value as a boolean.

.clear()

Clears the screen.

.setPrompt()

You can customize your PS1 for the prompt. It can be set and override at any point of time.

.sleep(milliseconds, callback)

Works exactly like the JavaScript "setTimeout" function. Waits for the number of milliseconds given, then executes the callback.

.beep()

DISMISSED from v. 3.0. Plays a retro digital tone.

.setTextSize()
.setTextColor()
.setBackgroundColor()
.setWidth()
.setHeight()

All the ".set" methods accepts any CSS-compliant value.

.blinkingCursor(boolean)

Set to true by default.

.html

This is the top DOM element of the terminal instance. If you want to modify styling via CSS, all instances belong to a .Terminal class.

License

The MIT License (MIT)

Copyright (c) 2014 Erik Österberg

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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