Lab 8

Lab 8 was a quick demonstration of the different kinds of loops. Loops are handy whenever you want to run the same code over and over again, with each time executing a different value. Loops can execute a block of code a number of times. There are four different kinds of loops. The for loop, the for/in loop, the while loop and the do/while loop. The for loop is often the tool you will use when you want to create a loop.

            Syntax is

                  for (statement 1; statement 2; statement3)}

                            code block to be executed

                  }

       *Where as statement 1 is executed before the loop starts, statement 2 defines the condition for       running the loop and statement 3 is executed each time after the loop has been executed.

• The for/in loop are loops through the properties of an object.
• The while loop can execute a block of code as long as a specified condition is true.

            Syntax is

                  while(condition) {

                             code block to be executed

                   }

• The do/while loop is a variant of the while loop. It will execute the code of block once, before checking if the condition is true, then it will repeat the loop as long as the condition is true.

            Syntax is

                 do{

                         code block to be executed

                     }

                 while (condition);