https://github.com/watson/progress-string

Get a progress bar as a string
https://github.com/watson/progress-string

Last synced: 13 days ago
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Get a progress bar as a string

• Host: GitHub
• URL: https://github.com/watson/progress-string
• Owner: watson
• License: mit
• Created: 2016-11-06T14:08:21.000Z (about 8 years ago)
• Default Branch: master
• Last Pushed: 2018-01-29T11:47:09.000Z (almost 7 years ago)
• Last Synced: 2024-10-23T08:55:09.591Z (21 days ago)
• Language: JavaScript
• Size: 24.4 KB
• Stars: 95
• Watchers: 5
• Forks: 9
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# progress-string

Generate a CLI progress bar as a string that you can then output in any

way you like.



[![Build status](https://travis-ci.org/watson/progress-string.svg?branch=master)](https://travis-ci.org/watson/progress-string)

[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat)](https://github.com/feross/standard)

## Installation

```

npm install progress-string --save

```

## Usage

```js

var progress = require('progress-string')

var diff = require('ansi-diff-stream')()

var value = 0

var total = 42

var bar = progress({width: 50, total: total})

setInterval(function () {

  diff.write(

    'The progress of the program is:\n' +

    bar(++value)

  )

  if (value === total) process.exit()

}, 250)

diff.pipe(process.stdout)

```

## API

### `var bar = progress(options)`

This module exposes a function that takes a single `options` argument

and retuns a bar function.

These are the options:

- `total` - (integer) The max value of the progress bar

- `width` - (integer, default: 42) The width of the progress bar in chars

- `incomplete` - (string, default: `-`) The char used to indicate the

  incomplete part of the progress bar

- `complete` - (string, default: `=`) The char used to indicate the

  completed part of the progress bar

- `style` - (function, optional) See `options.style` below for details

#### `options.style`

You can provide a custom styling function to style the progress bar

returned by the `bar` function.

It will be called with two arguments: `complete` and `incomplete`. Each

a string representing its part of the progress bar.

Whatever the style function returns will be returned by the `bar`

function.

```js

var bar = progress({

  width: 10,

  total: 100,

  style: function (complete, incomplete) {

    // add an arrow at the head of the completed part

    return complete + '>' + incomplete

  }

})

console.log(bar(50)) // =====>-----

```

### `var str = bar(value)`

Call the `bar` function with the `value` you want to the generated

progress bar to have.

The `bar` function will return a string representation of the progress

bar.

## License

MIT