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Elegant terminal spinner

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ora

Elegant terminal spinner



Install

npm install ora

Check out yocto-spinner for a smaller alternative.

Usage

import ora from 'ora';

const spinner = ora('Loading unicorns').start();

setTimeout(() => {
	spinner.color = 'yellow';
	spinner.text = 'Loading rainbows';
}, 1000);

API

ora(text)

ora(options)

If a string is provided, it is treated as a shortcut for options.text.

options

Type: object

text

Type: string

The text to display next to the spinner.

prefixText

Type: string | () => string

Text or a function that returns text to display before the spinner. No prefix text will be displayed if set to an empty string.

suffixText

Type: string | () => string

Text or a function that returns text to display after the spinner text. No suffix text will be displayed if set to an empty string.

spinner

Type: string | object
Default: 'dots'

The name of one of the provided spinners. See example.js in this repo if you want to test out different spinners. On Windows (except for Windows Terminal), it will always use the line spinner as the Windows command-line doesn't have proper Unicode support.

Or an object like:

{
	frames: ['-', '+', '-'],
	interval: 80 // Optional
}
color

Type: string
Default: 'cyan'
Values: 'black' | 'red' | 'green' | 'yellow' | 'blue' | 'magenta' | 'cyan' | 'white' | 'gray'

The color of the spinner.

hideCursor

Type: boolean
Default: true

Set to false to stop Ora from hiding the cursor.

indent

Type: number
Default: 0

Indent the spinner with the given number of spaces.

interval

Type: number
Default: Provided by the spinner or 100

Interval between each frame.

Spinners provide their own recommended interval, so you don't really need to specify this.

stream

Type: stream.Writable
Default: process.stderr

Stream to write the output.

You could for example set this to process.stdout instead.

isEnabled

Type: boolean

Force enable/disable the spinner. If not specified, the spinner will be enabled if the stream is being run inside a TTY context (not spawned or piped) and/or not in a CI environment.

Note that {isEnabled: false} doesn't mean it won't output anything. It just means it won't output the spinner, colors, and other ansi escape codes. It will still log text.

isSilent

Type: boolean
Default: false

Disable the spinner and all log text. All output is suppressed and isEnabled will be considered false.

discardStdin

Type: boolean
Default: true

Discard stdin input (except Ctrl+C) while running if it's TTY. This prevents the spinner from twitching on input, outputting broken lines on Enter key presses, and prevents buffering of input while the spinner is running.

This has no effect on Windows as there is no good way to implement discarding stdin properly there.

Instance

.text get/set

Change the text displayed after the spinner.

.prefixText get/set

Change the text before the spinner.

No prefix text will be displayed if set to an empty string.

.suffixText get/set

Change the text after the spinner text.

No suffix text will be displayed if set to an empty string.

.color get/set

Change the spinner color.

.spinner get/set

Change the spinner.

.indent get/set

Change the spinner indent.

.isSpinning get

A boolean indicating whether the instance is currently spinning.

.interval get

The interval between each frame.

The interval is decided by the chosen spinner.

.start(text?)

Start the spinner. Returns the instance. Set the current text if text is provided.

.stop()

Stop and clear the spinner. Returns the instance.

.succeed(text?)

Stop the spinner, change it to a green ✔ and persist the current text, or text if provided. Returns the instance. See the GIF below.

.fail(text?)

Stop the spinner, change it to a red ✖ and persist the current text, or text if provided. Returns the instance. See the GIF below.

.warn(text?)

Stop the spinner, change it to a yellow ⚠ and persist the current text, or text if provided. Returns the instance.

.info(text?)

Stop the spinner, change it to a blue ℹ and persist the current text, or text if provided. Returns the instance.

.stopAndPersist(options?)

Stop the spinner and change the symbol or text. Returns the instance. See the GIF below.

options

Type: object

symbol

Type: string
Default: ' '

Symbol to replace the spinner with.

text

Type: string
Default: Current 'text'

Text to be persisted after the symbol.

prefixText

Type: string | () => string
Default: Current prefixText

Text or a function that returns text to be persisted before the symbol. No prefix text will be displayed if set to an empty string.

suffixText

Type: string | () => string
Default: Current suffixText

Text or a function that returns text to be persisted after the text after the symbol. No suffix text will be displayed if set to an empty string.

.clear()

Clear the spinner. Returns the instance.

.render()

Manually render a new frame. Returns the instance.

.frame()

Get a new frame.

oraPromise(action, text)

oraPromise(action, options)

Starts a spinner for a promise or promise-returning function. The spinner is stopped with .succeed() if the promise fulfills or with .fail() if it rejects. Returns the promise.

import {oraPromise} from 'ora';

await oraPromise(somePromise);

action

Type: Promise | ((spinner: ora.Ora) => Promise)

options

Type: object

All of the options plus the following:

successText

Type: string | ((result: T) => string) | undefined

The new text of the spinner when the promise is resolved.

Keeps the existing text if undefined.

failText

Type: string | ((error: Error) => string) | undefined

The new text of the spinner when the promise is rejected.

Keeps the existing text if undefined.

spinners

Type: Record<string, Spinner>

All provided spinners.

FAQ

How do I change the color of the text?

Use chalk or yoctocolors:

import ora from 'ora';
import chalk from 'chalk';

const spinner = ora(`Loading ${chalk.red('unicorns')}`).start();

Why does the spinner freeze?

JavaScript is single-threaded, so any synchronous operations will block the spinner's animation. To avoid this, prefer using asynchronous operations.

Related

Ports

Explore PackageQuick Import