Lesson Seven: Functions

1. Functions allow you to call and execute an entire block of code with one statement.
2. Your current if statement should look like this:

   if (eventchoice == 1) { document.write(event1); }
   else if (eventchoice == 2) { document.write(event2); }
   else if (eventchoice == 3) { document.write(event3); }
   else if (eventchoice == 4) { document.write(event4); }
   else { document.write(event5); }

   
   
   
3. To turn a block of code into a function you enclose the code (as shown below) with the function keyword, the name of the function (historyevents in this example), and braces { }. Adjust your code as shown below:

   function historyevents() {
   if (eventchoice == 1) { document.write(event1); }
   else if (eventchoice == 2) { document.write(event2); }
   else if (eventchoice == 3) { document.write(event3); }
   else if (eventchoice == 4) { document.write(event4); }
   else { document.write(event5); }
   }

   
   Test your program with the new code. Your page should look like this: Sample
4. No events are written to the page because your code does not currently call the function.
5. Add this calling code (after the function) to execute the function:

   historyevents();

   
   Test your program with the new code. Your page should look like this: Sample

Lesson Eight: Parameters