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JavaScript: Ajax & DOM Manipulation
- 1. JavaScript Ajax & DOM Manipulation Matthew Batchelder
- 10. JS: Control Structures if (bork) { //... } else { //... } while (bork) { //... } for (var i = 0; i< 10; i++) { //... } for (var element in array_of_elements) { //... } do { //... } while (bork); switch (bork) { case 1: // if bork == 1... case 'whee': // if bork == 'whee'... case false: // if bork == false... default : // otherwise ... } try { //... } catch (err) { //... }
- 17. Simple Alert Box <html> <head> <title>Example Message Box Page</title> <script type=“text/javascript”> alert(‘I like butter’); </script> </head> <body> … </body> </html>
- 18. Confirm Box Bound to an Event <html> <head> <title>Example Message Box Page</title> <script type="text/javascript"> function doLoad() { document.getElementById('sweet-link').addEventListener(‘click’, confirmClick, false); }//end doLoad function confirmClick() { return confirm(‘Are you sure you wish to go to that link?’); }//end confirmClick window.addEventListener(‘load’, doLoad, false); </script> </head> <body> <a id="sweet-link" href="http://borkweb.com">BorkWeb</a> </body> </html> example
- 22. WAIT!!!!!!!!!!!!! Things can actually be a bit easier. How much? Well most of the above.
- 23. WTF? jQuery. That’s what we use on campus. Its hawt.
- 26. Finding Elements With $ $(‘a’) $(‘.class’) $(‘#id’) $(‘.content div’) $(‘input[name=bork]’) $(‘input:first’) Here’s an example . Check out the selector syntax for more info.