There are few options on how to noUiSlider into your project.
Install the noUiSlider Js library from command prompt from the root directory of the project:
npm install nouislider --save
npm install wnumb --save
Add the noUiSlider js file link.
<script src="assets/libs/nouislider/nouislider.min.js"></script>
<script src="assets/libs/wNumb/wNumb.min.js"></script>
Below the example how to use the package and make it working ApexTree on any page.
<div class="card-body">
<div id="tooltipsSlider"></div>
</div>
var tooltipSlider = document.getElementById('tooltipsSlider');
noUiSlider.create(tooltipSlider, {
start: [20, 80],
keyboardSupport: true,
connect: true,
tooltips: [wNumb({ decimals: 0 }), true],
range: {
'min': 0,
'max': 100
}
});