I have the code below and I'd like to add description to numbers in my tooltip. Why this code doesn't work?
HTML
<input id="contract-length"
class="slider slider-step-2 slider-contract-length"
data-slider-id="slider-contract-length"
type="text"
data-slider-min="1"
data-slider-max="36"
data-slider-step="1"
data-slider-value="1"
data-slider-tooltip="always"/>
Javascript
var slider = new Slider('#contract-length', {
formatter: function(value) {
return value + 'msc';
}
});