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

Calling Scripts Multiple Ways

Up to this point in the book, you’ve seen scripts that usually run automatically when the page loads. But in the real world, you’ll often want to give the user more control over your scripts, even allowing them to run a script whenever they want. In this example (Script 3.10), the script still runs when the page loads. But we also allow the user to click the link at the bottom of the page to rerun the script that generates the Bingo card entirely in their browser, without needing to reload the page from the server. This gives the user fast response with zero server load.

Script 3.10. Give your user the ability to run scripts themselves.

window.onload = initAll; var usedNums = new Array(76); function initAll() { ...