How to emply array

 var arrayList = ['a', 'b', 'c', 'd', 'e', 'f'];

console.log("Before:",arrayList)

arrayList.splice(0,arrayList.length)

console.log("After:",arrayList)

output:

Before: [ 'a', 'b', 'c', 'd', 'e', 'f' ] After: []