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Using Array Variables
This section describes how an array variable can be assigned with a list value. Array elements are referred by subscription notation as scalar expressions, like $identifier[i]. An unassigned array variable contains the (undef) value. 2022-10-24, ∼170🔥, 0💬

Typeglob and Importing Identifiers from Other Packages
This chapter provides tutorial examples and notes about typeglob and importing identifiers from other packages. Topics include accessing typeglobs from package's symbolic table; defining alias for identifiers from other packages; using Exporter to export and import identifiers from other packages. 2022-10-23, ∼192🔥, 0💬

DirGrep.pl - Searching Text in Directory Files
This section provides a tutorial example, DirGrep.pl, to search text in files and sub directories using a recursive method to walk through a directory tree. 2022-10-23, ∼159🔥, 0💬

Expression Evaluation Context
This section describes expression evaluation contexts: scalar context and list context. Operations and function may behave differently in different context. A list value in a scalar context is converted by taking the last value. 2022-10-19, ∼159🔥, 0💬

RPC::XML Client and Data Classes
This section describes the RPC::XML::Client class, the RPC::XML::request class, and data classes. 2022-10-19, ∼176🔥, 0💬

require() Function - Including Script Files
This section provides a tutorial example showing you how to the require() function is better than the do() function - if the same file is included multiple time, the require() function will only execute it once. 2022-10-19, ∼238🔥, 0💬

SubReturnValue.pl - Example on Return Values
This section provides a tutorial example on how a list value can be returned from a subroutine to the caller using the return statement. 2022-10-19, ∼148🔥, 0💬

XML Communication Model
This chapter provides tutorial examples and notes on XML communication model. Topics include sending and receiving XML messages over socket communication connections; XML communication server and client sample programs: GameServer.pl and GameClient.pl. 2022-10-18, ∼199🔥, 0💬

Scalar Value Constructors
This section describes what is a scalar value constructor, a numeric literal or a string literal, and what are syntax rules on using scalar value constructors. 2022-10-18, ∼185🔥, 0💬

What Is an Expression?
This section describes what is an expression, a mixture of values, variables, operations of expressions and function calls. A tutorial example is provided to show you examples of expressions.. 2022-10-18, ∼154🔥, 0💬

Install Perl Module with CPAN Shell
This section provides a tutorial on how to install a CPAN Perl module automatically with CPAN Shell. 2022-10-18, ∼192🔥, 0💬

Perl Version Pre-Installed on macOS
This section provides notes to verify Perl version supported on macOS and run a simple Perl script. 2022-10-18, ∼194🔥, 0💬

Configuring IIS 5.0 for Perl Programs
This section describes how to configure IIS (Internet Information Services) Web server to run Perl programs through CGI (Common Gateway Interface). 2022-10-18, ∼252🔥, 0💬

String Related Built-in Functions
This section describes built-in functions to manipulate strings: chop(), length(), index(), substr(), split(). 2022-10-17, ∼167🔥, 0💬

Perl on macOS Computers
This chapter provides tutorial examples and notes on using Perl on macOS computers. Topics include verify Perl installation on macOS; installing Xcode Command Line Tools; configuring CPAN Shell tool; installing Perl module from CPAN repository; installing Perl module from source code. 2022-10-17, ∼245🔥, 0💬

Publishing HTML Documents as Web Pages
This section describes how to publish a HTML document on the Apache HTTP server. 2022-10-17, ∼170🔥, 0💬

Image and Picture Processing
This chapter provides tutorial examples and notes on creating and processing images and managing image file formats. Topics include installing 'Imager' module; drawing graphical elements; converting image file formats; trying to install 'Imager::File::PNG'. 2022-10-17, ∼214🔥, 0💬

XmlSimpleHash.pl - XML Hash Example
This section provides a tutorial example on how to work with hashes resulted from the XML::Simple parsing operation, XMLin(). 2022-10-16, ∼198🔥, 0💬

Redirecting Browser to a URI
This section provides a tutorial example on how to redirect the browser to go to a new URI with the redirect() method in the CGI.pm module. 2022-10-14, ∼167🔥, 0💬

SocketClient.pl - A Simple Socket Client Program
This section provides a tutorial example on how to write a simple socket communication client program, SocketClient.pl, which creates a socket and makes a connection request to a remote socket communication server. 2022-10-14, ∼188🔥, 0💬

Using MySQL Database Server
This chapter provides tutorial examples and notes on MySQL database server access. Topics include installing the DBI module and DBD::mysql module; creating a database connection with the DBI-&gt;connect() function. 2022-10-14, ∼173🔥, 0💬

Scalar Value Interpretation
This section describes how a scalar value will be interpreted in an operation. A tutorial example is provided to verify scalar value interpretation rules. 2022-10-14, ∼167🔥, 0💬

"Refresh" http-equiv Meta Tag
This section provides a tutorial example on how to create 'Refresh' http-equiv Meta Tag in the HTML document header to ask the browser to refresh Web pages. 2022-10-14, ∼172🔥, 0💬

Running Perl Scripts in "htdocs"
This section describes how to change Apache HTTP server configuration and run Perl CGI (Common Gateway Interface) scripts in the default DocumentRoot directory: \local\apache\htdocs. 2022-10-14, ∼171🔥, 0💬

<< < 1 2 3 4 5 6 7 8 > >>   ∑:177  Sort:Rank

Android ASP Astrology Big5 Bitcoin Blowfish Built-in C# Calendar CD-DVD Cheminformatics Chinese Cryptography DES Email Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Neural Network Perl PHP Physics PKI Publication Python REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO