1. Create a function called sayHello( ). The function will use the alert( ) function to display your name. Call it during runtime.
2. Create a function called printHello( ). The function will use the document.write( ) function to display your name. Call it twice in a row during runtime.
3. Call the printHello( ) function so that it prints your name inside of an h1 element.
4. Create a function called characterCount( ).
Create a local variable called testString.
Use the prompt( ) to ask for a string. Store the result in the testString variable.
Use the String.length property to get the number of characters in the variable.
Display the results using an alert( ).
Call this function using an event handler such as onclick.