| | | If you're having trouble viewing this email, click here | | | | | | | This Week in Programming | In this week's edition we show you how to build variables on-the-fly in PHP, utilize the push function in Perl, validate form field entries using JavaScript, and much more.
Is there a particular topic that you'd like to see covered in a future version of the Programming Newsletter? If so, please let me know at browsers@aboutguide.com or on Twitter @browserexpert.
Thank you all for your ideas and suggestions so far. Keep 'em coming! | | | | | Java: The ColorPicker Class | | The ColorPicker class creates a control that allows the user to pick a color from a standard palette or pick a custom color by choosing specific values. Initially the ColorPicker control looks like a ChoiceBox, or ComboBox, with the default option of White selected. When the control is clicked by the user a drop-down window appears, offering a palette of standard color choices. | | | | | Refinements: Monkeypatching Made Safe | | Feel free to patch monkeys to your heart's content, because as of Ruby 2.0 it can be done in a safe manner. Refinements are a way to implement monkeypatches in a sort of module that can be activated in scopes where the behavior is intended, but leaves all other scopes unchanged. Monkeypatching has always been a risky prospect, controversial and, to some, considered a hack or too risky to do. But with this new feature, it's a perfectly sane and reasonable thing to do. | | | | | Understanding Perl's Array Push Function | | Perl's push() function is used to push a value or values onto the end of an array, which increases the number of elements. The new values then become the last elements in the array. It returns the new total number of elements in the array. It's easy to confuse this function with unshift() , which adds elements to the beginning of an array. | | | | | Compilers and Interpreters: What's the Difference? | | Before the Java and C# programming languages appeared, computer programs were only compiled or interpreted. Languages like Assembly Language , C , C++ , Fortran, and Pascal were almost always compiled into machine code. Languages like Basic, VBScript and JavaScript were usually interpreted. So what is the difference between a compiled program and an interpreted one? | | | | | | |  | You are receiving this newsletter because you subscribed to the About Programming newsletter. If you wish to unsubscribe, please click here.
If you would like to unsubscribe from all newsletters sent from About.com, please send an email to optout@about.com with "Unsubscribe" as the subject line.
| | | 1500 Broadway, 6th Floor, New York, NY, 10036 | © 2014 About.com - All rights reserved - Privacy Policy | | | | |
|
Không có nhận xét nào:
Đăng nhận xét