• copy input tag in datepicker.html and paste where you want to use datepicker

• copy all of js code in tag of script in datepicker.html and paste them in tag of script that is in your local file

• you have to add Datedropper3-master/editedDropper.js and PersianDate-master/dist/persian-date.js for loading datepicker's js in your html file where you use datepicker

• you have to add Datedropper3-master/datedropper.css for loading css in your html file where you use datepicker

• if your project has routing you have to search url:"../assets/Datedropper3-master/holidays/ in editedDropers.js and change it to your routing

• if you need to change the color of date picker search modifed style in datepicker css file, at the end of the file and change the color