Tutorial by Topics: h

tidyr has two tools for reshaping data: gather (wide to long) and spread (long to wide). See Reshaping data for other options.

This thread is focused on how to create a spring boot application with hibernate and thymyleaf template engine. Also check the Thymeleaf documentation

This topic is about how to limit access to your docker containers from outside world using iptables. For impatient people, you can check the examples. For the others, please read the remark section to understand how to build new rules. iptables -I DOCKER [RULE ...] [ACCEPT|DROP] // To add a r...

What is Dynamic Method Dispatch? Dynamic Method Dispatch is a process in which the call to an overridden method is resolved at runtime rather than at compile-time. When an overridden method is called by a reference, Java determines which version of that method to execute based on the type of object...

Proguard is free Java class file shrinker, optimizer, obfuscator, and preverifier. It detects and removes unused classes, fields, methods, and attributes. It optimizes bytecode and removes unused instructions. It renames the remaining classes, fields, and methods using short meaningless names. ...

This function returns all categories as an array of the current post or page or the designated post or page. get_the_category( $id ) ParameterDetails$id(int) (Optional) default to current post ID. The post ID. Please note that get_the_category() returns an array, which means that you c...

This function returns the title of the current post. the_title( $before, $after, $echo ); ParameterDetails$before(string) (optional) Text to place before the title.$after(string) (optional) Text to place after the title.$echo(Boolean) (optional) Display the title or return it for use in ...

This function returns the title of the current post or the designated post. get_the_title( $post ) ParameterDetails$post(int) (optional) Post ID or post object. Default is the the current post's id. If you plan to get the title of a post or page using a post loop, it is suggested to us...

This function registers features that the theme supports. add_theme_support( $feature ) ParameterDetails$feature(string) The feature being added. List of features to be used in $feature: 'post-formats' 'post-thumbnails' 'html5' 'custom-logo' 'custom-header-uploads' 'custom-head...

A good explanation of this topic is in http://www.sunburst-design.com/papers/CummingsSNUG1999SJ_SynthMismatch.pdf

In Postgres, cryptographic functions can be unlocked by using pgcrypto module. CREATE EXTENSION pgcrypto;

Open the directory of your ember.js project, You will find there a file named ember-cli-build.js. You can install Your libraries or plugins using bower, then point the import to the bower_components folder, but if you have a file You want to add, just drag them to the folder of Your project and writ...

Blender is a free, open-source, 3-dimensional modeling, game building, and rendering software. Blender is written in C and C++. In addition, Blender can be extended with Python scripting. All of the source code of every single previous version since 2003 can be found here: http://download.blende...

You need to know basics of Python Programming Language before you start with PyQt. PyQt is a GUI widgets toolkit. It is a Python interface for Qt, one of the most powerful, and popular cross-platform GUI library. PyQt is a blend of Python programming language and the Qt library. Here is an Hello W...

This section provides an overview of what apache-zookeeper is, and why a developer might want to use it. It should also mention any large subjects within apache-zookeeper, and link out to the related topics. Since the Documentation for apache-zookeeper is new, you may need to create initial ver...

ImageMagick is an open-source suite of tools for processing almost any raster (and some vector) image formats using either a command line interface or language bindings in an assortment of languages. Over 200 image formats are supported using any of over 20 languages. ImageMagick runs on Linux, W...