text: console.log('1 : hello world !');
  console.log("2 : this will also work");
  
  var str = 'nodejs';
  
  var val = 25;
  
  //printing a string
  console.log(str);
  //printing a variable and replacing the 
  //value of variable in place of %d
  console.log('4: Value of val is : %d', val);
  //replacing a string in place of %s
  console.log('5: %s', 'this will be printed after 5');
  //concatinating in console		
  console.log("6 : str = " + str);
  