If you visited the White House web site
in the early days,
you may have noticed that the greeting (and the picture as well)
depended on the time of day.
Task 8: Produce a greeting similar to the one at the top of this page.
Check.
Task 9: Create a page that gives a different message when it's the weekend
and when it's not.
Check.
Task 10: Let your creative juices flow - extend the idea of Task 9
to produce a different message for each day of the week.
And now onto another one of the BIG ideas in computing.
Imagine the houses in a street (humour me) - all different - one may even be a shop.
And yet we can easily identify each one by a number. We can say things like:
- House number 7 is brick.
- The Clintons live in house number 1600.
- Number 201 is vacant.
Riveting stuff eh? In computer speak this is known as an array.
Our work with dates provides a good example:
- day 0 is Sunday
- day 1 is Monday
- day 2 is Tuesday
- day 3 is Wednesday
- day 4 is Thursday
- day 5 is Friday
- day 6 is Saturday
And this is how we write it in JavaScript:
<![CDATA[
var day=new Array()
day[0]="Sunday"
day[1]="Monday"
day[2]="Tuesday"
day[3]="Wednesday"
day[4]="Thursday"
day[5]="Friday"
day[6]="Saturday"
]]>
Remember Task 6? Check out how much easier it is if we use an array:
<![CDATA[
<html>
<head>
<title>Today</title>
</head>
<body>
<script>
var day=new Array()
day[0]="Sunday"
day[1]="Monday"
day[2]="Tuesday"
day[3]="Wednesday"
day[4]="Thursday"
day[5]="Friday"
day[6]="Saturday"
var now=new Date()
var day_number=now.getDay()
document.write(day[day_number])
</script>
</body>
</html>
]]>
Task 11: Convince yourself that you follow the example
by rewriting the script to display what month it is.
Check.
Challenge 5: Put it altogether and create a page
that displays the date as attractively as possible - like this:
Friday, January 1st 99
btw my solution doesn't use an if statement :o)