Ascii-progress NPM

Features:

Support multi progress-bars.
Relative and absolute width.
Colorful bar and text.
Highly customizable.

snapshot

Install

$ npm install ascii-progress

Usage

For more usage see the examples

const { ProgressBar } = require('ascii-progress');

const bar = new ProgressBar({
    schema: ':bar',
    total : 10,
});

const iv = setInterval(function () {
  bar.tick();
  if (bar.completed) {
    clearInterval(iv);
  }
}, 100);

Options

These are keys in the options object you can pass to the progress bar along with total as seen in the example above.

schema - template string of the progress bar. Default " [:bar] :current/:total :percent :elapseds :etas'".
total - total number of ticks to complete. Default 100.
current- number of completed ticks. Default 0.
width - display width, percentage or less than 1 is relative the terminal's width. Default 60.
fixedWidth - do not adjust the bar based on the terminal size
filled- completion character. Default "▇".
blank - blank character. Default "-".
clean - clear the progress bar on completion. Default false.
callback - optional function to call when the progress bar completes.

Properties

schema
total
current
completed

Methods

setSchema(schema, refresh/tokens) - Update the schema of the progress bar. If refresh or tokens is truely the progress bar will be refreshed.
tick(delta, tokens) - Update ticks of the progress bar by delta, then render the progress bar with optional tokens.
update(ratio, tokens) - Update the progress bar to ratio by percentage, then render the progress bar with optional tokens.
clear() - Clean the progress bar in the terminal.

Schema

The schema defines appearance the progress bar. Few inner tokens and many formatting methods can be used to customer you progress bar.

Tokens

These are tokens you can use in the format of your progress bar.

:filled Completed part of the progress bar.
:blank Blank part of the progress bar.
:bar Whole progress bar, equal to :completed:blank.
:current Current tick number.
:total Total ticks.
:percent Completion percentage.
:elapsed Time elapsed in seconds.
:eta Estimated completion time in seconds.

Custom Tokens

You can define custom tokens by adding a {name: value} object parameter to your method (tick(), update(), etc.) calls.

const bar = new ProgressBar({
    schema: ':current: :token1 :token2',
    total : 3,
});
bar.tick({
  'token1': "Hello",
  'token2': "World!"
})
bar.tick(2, {
  'token1': "Goodbye",
  'token2': "World!"
})

The above example would result in the output below.