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https://github.com/williamtroup/heat.js

🌞 A lightweight JavaScript library that generates customizable heat maps, charts, and statistics to visualize date-based activity and trends.
https://github.com/williamtroup/heat.js

activity angular bar bar-chart chart css date generator heat heatmap html javascript map react statistics trends typescript visualization

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🌞 A lightweight JavaScript library that generates customizable heat maps, charts, and statistics to visualize date-based activity and trends.

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Heat.js

[![Tweet](https://img.shields.io/twitter/url/http/shields.io.svg?style=social)](https://twitter.com/intent/tweet?text=Heat.js%2C%20a%20free%20JavaScript%heat%20map&url=https://github.com/williamtroup/Heat.js&hashtags=javascript,heat,map)
[![npm](https://img.shields.io/badge/npmjs-v4.2.2-blue)](https://www.npmjs.com/package/jheat.js)
[![nuget](https://img.shields.io/badge/nuget-v4.2.2-purple)](https://www.nuget.org/packages/jHeat.js/)
[![license](https://img.shields.io/badge/license-MIT-green)](https://github.com/williamtroup/Heat.js/blob/main/LICENSE.txt)
[![discussions Welcome](https://img.shields.io/badge/discussions-Welcome-red)](https://github.com/williamtroup/Heat.js/discussions)
[![coded by William Troup](https://img.shields.io/badge/coded_by-William_Troup-yellow)](https://william-troup.com/)

>

🌞 A lightweight JavaScript library that generates customizable heat maps, charts, and statistics to visualize date-based activity and trends.


>

v4.2.2



![Heat.js](docs/images/main.png)



What features does Heat.js have?

- Zero-dependencies and extremely lightweight!
- Written in TypeScript, allowing greater support for React, Angular, and other libraries!
- Full API available via public functions.
- Fully styled in CSS/SASS, fully responsive, and compatible with the Bootstrap library.
- Full CSS theme support (using :root variables).
- 4 views supported: Map, Chart, Days, and Statistics!
- Configuration dialog support per view.
- Fully configurable per DOM element.
- Toggling colors on/off support.
- Export all data to CSV, JSON, XML, and TXT.
- Import data from JSON, TXT, and CSV.
- 51 language translations available!
- Trend types allows data to be split up and viewed separately.
- Customizable tooltips.
- 12 additional themes available (for dark and light mode).
- Data pulling (does not support trend types).
- Color ranges support different colors per view.



Where can I find the documentation?

All the documentation can be found [here](https://www.william-troup.com/heat-js/documentation/index.html).



What browsers are supported?

All modern browsers (such as Google Chrome, FireFox, and Opera) are fully supported.



What languages are supported?

- `af` Afrikaans
- `ar` Arabic
- `hy` Armenian
- `be` Belarusian
- `bn` Bengali
- `bg` Bulgarian
- `ca` Catalan
- `zh` Chinese (simplified)
- `da` Danish
- `nl` Dutch
- `en` English (default)
- `eo` Esperanto
- `et` Estonian
- `fa` Farsi
- `fi` Finnish
- `fr` French
- `fy` Frisian
- `gl` Galician
- `ka` Georgian
- `de` German
- `el` Greek
- `he` Hebrew
- `hi` Hindi
- `hu` Hungarian
- `is` Icelandic
- `id` Indonesian
- `ga` Irish
- `it` Italian
- `ja` Japanese
- `ko` Korean
- `lv` Latvian
- `lt` Lithuanian
- `lb` Luxembourgish
- `ms` Malay
- `ne` Nepali
- `no` Norwegian
- `pl` Polish
- `pt` Portuguese
- `ro` Romanian
- `si` Sinhalese
- `sk` Slovak
- `sl` Slovenian
- `es` Spanish
- `sv` Swedish
- `tl` Tagalog
- `ta` Tamil
- `zh-tw` Taiwanese
- `te` Telugu
- `th` Thai
- `tr` Turkish
- `uk` Ukrainian



What are the most recent changes?

To see a list of all the most recent changes, click [here](https://william-troup.com/heat-js/documentation/recent-changes.html).



How do I install Heat.js?

You can install the library with npm into your local modules directory using the following command:

```markdown
npm install jheat.js
```

Or, you can download the latest zipped up version [here](https://www.william-troup.com/heat-js/download.html).

Or, you can also use the following CDN links:

```markdown
https://cdn.jsdelivr.net/gh/williamtroup/[email protected]/dist/heat.min.js
https://cdn.jsdelivr.net/gh/williamtroup/[email protected]/dist/heat.js.min.css
```



How do I get started?

To get started using Heat.js, do the following steps:



### 1. Prerequisites:

Make sure you include the "DOCTYPE html" tag at the top of your HTML, as follows:

```markdown

```

### 2. Include Files:

```markdown

```

### 3. DOM Element Binding:

```markdown


Your HTML.

```

To see a list of all the available binding options you can use for "data-heat-js", click [here](https://william-troup.com/heat-js/documentation/binding-options.html).

To see a list of all the available custom triggers you can use for "data-heat-js", click [here](https://william-troup.com/heat-js/documentation/binding-options-custom-triggers.html).


### 4. Adding Dates:

Now, you can add/remove dates, which will update the heat map automatically!

```markdown

var newDateObject = new Date();

$heat.addDate( "heat-map", newDateObject, "Trend Type 1", true );
$heat.removeDate( "heat-map", newDateObject, "Trend Type 1", true );

```



### 5. Finishing Up:

That's it! Nice and simple. Please refer to the code if you need more help (fully documented).



How do I go about customizing Heat.js?

To customize, and get more out of Heat.js, please read through the following documentation.



### 1. Public Functions:

To see a list of all the public functions available, click [here](https://william-troup.com/heat-js/documentation/public-functions.html).



### 2. Configuration:

Configuration options allow you to customize how Heat.js will function. You can set them as follows:

```markdown

$heat.setConfiguration( {
safeMode: false
} );

```

To see a list of all the available configuration options you can use, click [here](https://william-troup.com/heat-js/documentation/options.html).