Date Format in lightning Component dd-mmm-yy (22-OCT-2020)

var monthNames = ["JAN", "FEB", "MAR", "APR", "MAY", "JUN",

"JUL", "AUG", "SEP", "OCT", "NOV", "DEC"

];

var date = new Date('01-JAN-2016')

date.setDate(date.getDate() - 1)

date = date.getDate()+"-"+monthNames[date.getMonth()]+"-"+date.getFullYear()

console.log(date)