Java J2ee Planet

This is a user-contributed list of AJAX tutorials for those new to Asynchronous JavaScript with or without XML. Feel free to leave a comment if you feel an important tutorial has been omitted. AJAX security - read about AJAX security issues and vulnerability postings jQuery plugins - a directory of plugins for jQuery. How jQuery works - a basic jQuery tutorial. Tutorial: AJAX Made Easy - On the heels of two very successful tutorials on creating a collapsible div and an animated sliding div, I’ve decided to write another. It seems my last few helped a number of programmers learn a simple trick, and hopefully this one will do the same. Efficient JavaScript code - Opera has one of the fastest and most efficient JavaScript engines of any browser, but when you have multiple User JavaScripts installed, it is important that they run efficiently to keep Opera's performance as high as possible. Well written code will help to minimise the performance impact of User JavaScripts.

1.What does a special set of tags <?= and ?> do in PHP? - The output is displayed directly to the browser. 2.What's the difference between include and require? - It's how they handle failures. If the file is not found by require(), it will cause a fatal error and halt the execution of the script. If the file is not found by include(), a warning will be issued, but execution will continue. 3. I am trying to assign a variable the value of 0123, but it keeps coming up with a different number, what's the problem? - PHP Interpreter treats numbers beginning with 0 as octal. Look at the similar PHP interview questions for more numeric problems. 4. Would I use print "$a dollars" or "{$a} dollars" to print out the amount of dollars in this example? - In this example it wouldn't matter, since the variable is all by itself, but if you were to print something like "{$a},000,000 mln dollars", then you definitely need to use the braces. How ...