//main function
function processData(myArray) {
var x= max(myArray)
//storing index of x value in y//
var y= myArray.indexOf(x)
//removing x value with a index of y using splice()//
myArray.splice(y,1)
//now again max of left over elements in array
//gives second largest number//
var z = max(myArray);
return z;
}