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NProgress

=========

[![Status](https://api.travis-ci.org/rstacruz/nprogress.svg?branch=master)](http://travis-ci.org/rstacruz/nprogress)

[![npm version](https://img.shields.io/npm/v/nprogress.png)](https://npmjs.org/package/nprogress "View this project on npm")

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> Minimalist progress bar

Slim progress bars for Ajax'y applications. Inspired by Google, YouTube, and

Medium.

Installation

------------

Add [nprogress.js] and [nprogress.css] to your project.

```html

<script src='nprogress.js'></script>

<link rel='stylesheet' href='nprogress.css'/>

```

NProgress is available via [bower] and [npm].

    $ npm install --save nprogress

Also available via [unpkg] CDN:

- https://unpkg.com/nprogress@0.2.0/nprogress.js

- https://unpkg.com/nprogress@0.2.0/nprogress.css

[bower]: http://bower.io/search/?q=nprogress

[npm]: https://www.npmjs.org/package/nprogress

[unpkg]: https://unpkg.com/

Basic usage

-----------

Simply call `start()` and `done()` to control the progress bar.

~~~ js

NProgress.start();;

NProgress.done();

~~~

### Turbolinks (version 5+)

Ensure you're using Turbolinks 5+, and use

this: (explained [here](https://github.com/rstacruz/nprogress/issues/8#issuecomment-239107109))

~~~ js

$(document).on('turbolinks:click', function() {

  NProgress.start();;

});

$(document).on('turbolinks:render', function() {

  NProgress.done();

  NProgress.remove();

});

~~~

### Turbolinks (version 3 and below)

Ensure you're using Turbolinks 1.3.0+, and use

this: (explained [here](https://github.com/rstacruz/nprogress/issues/8#issuecomment-23010560))

~~~ js

$(document).on('page:fetch',   function() { NProgress.start();; });

$(document).on('page:change',  function() { NProgress.done(); });

$(document).on('page:restore', function() { NProgress.remove(); });

~~~

### Pjax

Try this: (explained [here](https://github.com/rstacruz/nprogress/issues/22#issuecomment-36540472))

~~~ js

$(document).on('pjax:start', function() { NProgress.start();; });

$(document).on('pjax:end',   function() { NProgress.done();  });

~~~

Ideas

-----

 * Add progress to your Ajax calls! Bind it to the jQuery `ajaxStart` and

 `ajaxStop` events.

 * Make a fancy loading bar even without Turbolinks/Pjax! Bind it to

 `$(document).ready` and `$(window).load`.

Advanced usage

--------------

__Percentages:__ To set a progress percentage, call `.set(n)`, where *n* is a

number between `0..1`.

~~~ js

NProgress.set(0.0);     // Sorta same as .start()

NProgress.set(0.4);

NProgress.set(1.0);     // Sorta same as .done()

~~~

__Incrementing:__ To increment the progress bar, just use `.inc()`. This

increments it with a random amount. This will never get to 100%: use it for

every image load (or similar).

~~~ js

NProgress.inc();

~~~

If you want to increment by a specific value, you can pass that as a parameter:

~~~ js

NProgress.inc(0.2);    // This will get the current status value and adds 0.2 until status is 0.994

~~~

__Force-done:__ By passing `true` to `done()`, it will show the progress bar

even if it's not being shown. (The default behavior is that *.done()* will not

    do anything if *.start()* isn't called)

~~~ js

NProgress.done(true);

~~~

__Get the status value:__ To get the status value, use `.status`

Configuration

-------------

#### `minimum`

Changes the minimum percentage used upon starting. (default: `0.08`)

~~~ js

NProgress.configure({ minimum: 0.1 });

~~~

#### `template`

You can change the markup using `template`. To keep the progress

bar working, keep an element with `role='bar'` in there. See the [default template]

for reference.

~~~ js

NProgress.configure({

  template: "<div class='....'>...</div>"

});

~~~

#### `easing` and `speed`

Adjust animation settings using *easing* (a CSS easing string)

and *speed* (in ms). (default: `ease` and `200`)

~~~ js

NProgress.configure({ easing: 'ease', speed: 500 });

~~~

#### `trickle`

Turn off the automatic incrementing behavior by setting this to `false`. (default: `true`)

~~~ js

NProgress.configure({ trickle: false });

~~~

#### `trickleSpeed`

Adjust how often to trickle/increment, in ms.

~~~ js

NProgress.configure({ trickleSpeed: 200 });

~~~

#### `showSpinner`

Turn off loading spinner by setting it to false. (default: `true`)

~~~ js

NProgress.configure({ showSpinner: false });

~~~

#### `parent`

specify this to change the parent container. (default: `body`)

~~~ js

NProgress.configure({ parent: '#container' });

~~~

Customization

-------------

Just edit `nprogress.css` to your liking. Tip: you probably only want to find

and replace occurrences of `#29d`.

The included CSS file is pretty minimal... in fact, feel free to scrap it and

make your own!

Resources

---------

 * [New UI Pattern: Website Loading Bars](http://www.usabilitypost.com/2013/08/19/new-ui-pattern-website-loading-bars/) (usabilitypost.com)

Support

-------

__Bugs and requests__: submit them through the project's issues tracker.<br>

[![Issues](http://img.shields.io/github/issues/rstacruz/nprogress.svg)]( https://github.com/rstacruz/nprogress/issues )

__Questions__: ask them at StackOverflow with the tag *nprogress*.<br>

[![StackOverflow](http://img.shields.io/badge/stackoverflow-nprogress-brightgreen.svg)]( http://stackoverflow.com/questions/tagged/nprogress )

__Chat__: join us at gitter.im.<br>

[![Chat](http://img.shields.io/badge/gitter-rstacruz/nprogress-brightgreen.svg)]( https://gitter.im/rstacruz/nprogress )

[default template]: https://github.com/rstacruz/nprogress/blob/master/nprogress.js#L31

[Turbolinks]: https://github.com/rails/turbolinks

[nprogress.js]: http://ricostacruz.com/nprogress/nprogress.js

[nprogress.css]: http://ricostacruz.com/nprogress/nprogress.css

Thanks

------

**NProgress** © 2013-2017, Rico Sta. Cruz. Released under the [MIT License].<br>

Authored and maintained by Rico Sta. Cruz with help from [contributors].

> [ricostacruz.com](http://ricostacruz.com)  · 

> GitHub [@rstacruz](https://github.com/rstacruz)  · 

> Twitter [@rstacruz](https://twitter.com/rstacruz)

[MIT License]: http://mit-license.org/

[contributors]: http://github.com/rstacruz/nprogress/contributors

[![](https://img.shields.io/github/followers/rstacruz.svg?style=social&label=@rstacruz)](https://github.com/rstacruz)  

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