JavaScript and Ajax for the Web: Visual QuickStart Guide, Seventh Edition

Working with Days

You might want to display a different message to your users if it’s a weekend. Script 12.2 tells you how to do it.

Figure 12.2. The happy news gets written to the window.

To figure out if it is a weekend:

1.	var now = new Date(); Fill the variable now with the current date.
2.	if (now.getDay() > 0 && now.getDay() < 6) { This extracts the numerical day of the week from the now variable and asks if it is greater than 0 (remember that Sunday is 0). Next the line uses the && operator, which is a logical and (i.e., both parts have to be true), and asks if now is less than 6, which is the number for Saturday.
3.	dtString = "Sorry, ...