select all but last element of an array javascript code example

Example 1: how to select last element in a array

if (loc_array[loc_array.length - 1] === 'index.html') {
   // do something
} else {
   // something else karunakar
}

Example 2: how to select last element in a array

int[] karunakar={1,2,3};
System.out.println(karunakar[karunakar.length-1]);