Effective Perl programming : ways to write better, more by Joseph N Hall; Joshua McAdams; Brian D Foy

By Joseph N Hall; Joshua McAdams; Brian D Foy

Show description

Read or Download Effective Perl programming : ways to write better, more idiomatic Perl PDF

Best javascript books

Smashing Node.js: JavaScript Everywhere (Smashing Magazine Book Series)

Learn how to make extra effective apps, with only one language!

Smashing Node. js: JavaScript far and wide equips you with the mandatory instruments to appreciate Node. js and its makes use of in constructing effective net apps. With extra conventional internet servers changing into out of date, having wisdom on servers that in attaining excessive scalability and optimum source intake utilizing Node. js is the most important in your app improvement good fortune. instructing you the necessities to creating event-driven server-side apps, this booklet demonstrates how one can use much less house and take much less time for communique among net customer and server.

* comprises a variety of hands-on examples
* Explains implementation of real-time apps together with Socket. IO and HTML5, and WebSockets
* Addresses sensible Node. js merits from particular layout choices
* Demonstrates why wisdom and use of JavaScript is beneficial
* contains an interactive on-line part with pattern chapters
* Explains parts of stand out apps together with brevity and benchmarks

Looking to augment your talents even additional? Smashing Node. js: JavaScript all over the place makes constructing server-side apps available with its specialize in JavaScript, open resource, and easy-to-use language.

Scripting in Java: Integrating with Groovy and JavaScript

Scripting in Java teaches you the way to exploit the Java Scripting API and JavaScript to execute scripts and reap the benefits of the positive aspects of a scripting language whereas constructing Java functions. The ebook additionally covers issues that permit scripting languages to exploit Java positive aspects and the Java classification library, together with the hot Java Collections and JavaFX eight APIs.

HTML, CSS & JavaScript Web Publishing in One Hour a Day

Completely revised and up-to-date with examples rewritten to comply to HTML5, CSS3, and modern net improvement practices, this easy-to-understand, step by step instructional is helping you quick grasp the fundamentals of HTML and CSS sooner than relocating directly to extra complex issues akin to photos, video, and interactivity with javascript and jQuery.

Additional info for Effective Perl programming : ways to write better, more idiomatic Perl

Example text

9 ] = reverse @list[ 5 .. 9 ]; @list[ reverse 5 .. 9 ] = @list[ 5 .. 9 ]; Slices provide a handy way to swap two elements: @a[ $n, $m ] = @a[ $m, $n ]; @item{ 'old', # swap $a[$m] and $a[$n] 'new' } = @item{ 'new', 'old' }; # swap $item{old} and # $item{new} Use slices to reorder arrays Slices are also used in sorting (Item 22). Given two parallel arrays @uid and @name, this example sorts @name according to the numerical contents of @uid. The sort orders the indices in @name, uses that sorted list as a slice, then assigns the slice back to @name: @name = @name[ sort { $uid[$a] <=> $uid[$b] } 0 ..

Find the documentation for Perl and its modules. Perl comes with a lot of documentation—more than you’d ever want to put on paper. You’d use a couple of reams of paper and a lot of toner to print it all. We lost count after the documentation got to be around 2,000 pages (on our virtual printer, so no trees harmed). com> 10 ❘ Chapter 1 The Basics of Perl There is a huge amount of useful information in the documentation files, so it pays to be able to read them, but even more than that, to find information in them.

0' ~~ '123' ) { ... } # numish and numish: FALSE You need to be careful when you use variables with smart match, since their history in the program matters. If you previously did something to $var to trigger a conversion (Item 8), you might get unexpected results as the smart match chooses the wrong comparison type. com> Item 7. "; } However, if you start with a number but make it into a string, Perl sees it only as a string and forces eq semantics on it. "; } Things to remember ■ ■ ■ Remember that strings and numbers compare and sort differently.

Download PDF sample

Rated 4.23 of 5 – based on 37 votes