Ruby program to append an element into an array

arr = [101,102,103,104,105];

print "Array elements before append(): \n",arr,"\n\n";

arr.append(106);

print "Array elements after append(): \n",arr,"\n";

Output:

Array elements before append(): 
[101, 102, 103, 104, 105]

Array elements after append(): 
[101, 102, 103, 104, 105, 106]