text:  
  /*31.  Find the Length of a String:
  Use the .length property to count the number of characters in the lastName variable and assign it to lastNameLength.
  */
  var lastName="Pontapalli"
  var lastNameLength=lastName.length
  console.log(lastNameLength)
  
  //32. Understand String Immutability:
  var myStr="This is string"
  var myStr="Hello World"
  console.log(myStr)
  
  //33. Use Bracket Notation to Find the Nth Character in a String:
  var thirdLetterOfLastName =lastName[2]
  console.log(thirdLetterOfLastName)
  
  //34. Use Bracket Notation to Find the Last Character in a String:
  var lastCharacterInTheLastName= lastName[lastName.length-1]
  console.log(lastCharacterInTheLastName)
  
  //35. Use Bracket Notation to Find the Nth-to-Last Character in a String:
  //Use bracket notation to find the second-to-last character in the lastName string.
  var secondToLastCharacter=lastName[lastName.length-2]
  console.log(secondToLastCharacter)
  
  //36. Word Blanks:
  var sentence = "It was really " + "awesome!" + ", and we " + "enjoyed" + " ourselves " + "Luckyly" + ".";
  console.log(sentence)
  
  //37. Store Multiple Values in one Variable using JavaScript Arrays:
  var myArray =["Rasika","Sonavane",783,"India"]
  
  //38. Nest one Array within Another Array:
  var myArray=[["Rasika", "Sonavane"],[1234567890]]
  console.log(myArray)
  
  //39. Access Array Data with Indexes:
  var myData = [3,7,"Rasika",90,4,10]
  var firstvaludeofMyData=myData[1]
  console.log(firstvaludeofMyData)
  
  //40. Modify Array Data With Indexes:
  myData[0]=45
  console.log(myData)
  