Tutorial by Topics: d

Swift is an application and systems programming language developed by Apple and distributed as open source. Swift interoperates with Objective-C and Cocoa/Cocoa touch APIs for Apple's macOS, iOS, tvOS, and watchOS operating systems. Swift currently supports macOS and Linux. Community efforts are...

The 'Hello World' program is a common example that can be simply used to check compiler and library presence. It uses the C++ standard library, with std::cout from <iostream>, and has only one file to compile, minimizing the chance of possible user error during compilation. The process fo...

jQuery is a JavaScript library which simplifies DOM operations, event handling, AJAX, and animations. It also takes care of many browser compatibility issues in underlying DOM and javascript engines. Each version of jQuery can be downloaded from https://code.jquery.com/jquery/ in both compressed ...

C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. By design, C provides constructs that map efficiently to typical machine instructions, and ther...

Scala is a modern multi-paradigm programming language designed to express common programming patterns in a concise, elegant, and type-safe way. It smoothly integrates features of object-oriented and functional languages. Most given examples require a working Scala installation. This is the Scala ...

HTML (Hypertext Markup Language) is an XML-compliant system of annotating documents with 'tags'. It is used specifically to create content for web pages and web applications, which can then be shared over a network. Apart from text, the current version of HTML supports many different types of me...

Git is a free, distributed version control system which allows programmers to keep track of code changes, via "snapshots" (commits), in its current state. Utilizing commits allows programmers to test, debug, and create new features collaboratively. All commits are kept in what is known a...

Conditional expressions, involving keywords such as if and else, provide JavaScript programs with the ability to perform different actions depending on a Boolean condition: true or false. This section covers the use of JavaScript conditionals, Boolean logic, and ternary statements. if (conditi...

NSJSONSerialization.JSONObjectWithData(jsonData, options: NSJSONReadingOptions) // Returns an Object from jsonData. This method throws on failure. NSJSONSerialization.dataWithJSONObject(jsonObject, options: NSJSONWritingOptions) // Returns NSData from a JSON object. Pass in NSJSONWritingOptions....

Ruby on Rails (RoR), or Rails, is an open-source popular web application framework. Rails uses Ruby, HTML, CSS, and JavaScript to create a web application that runs on a web server. Rails uses the model-view-controller (MVC) pattern and provides a fullstack of libraries from the database all t...

HTML provides not only plain paragraph tags, but six separate header tags to indicate headings of various sizes and thicknesses. Enumerated as heading 1 through heading 6, heading 1 has the largest and thickest text while heading 6 is the smallest and thinnest, down to the paragraph level. This topi...

Decorator functions are software design patterns. They dynamically alter the functionality of a function, method, or class without having to directly use subclasses or change the source code of the decorated function. When used correctly, decorators can become powerful tools in the development proce...

VersionReleaseRelease Date1.01984-01-0121986-01-0131987-01-013.51990-01-0141992-01-014.2c1994-01-015.0Volume 81996-12-015.1Volume 91997-05-015.1.1R9.11997-05-025.2R101998-03-015.2.1R10.11998-03-025.3R111999-01-015.3.1R11.11999-11-016.0R122000-11-016.1R12.12001-06-016.5R132002-06-016.5.1R13SP22003...

This is a set of examples highlighting basic usage of SQL Server. VersionRelease DateSQL Server 20162016-06-01SQL Server 20142014-03-18SQL Server 20122011-10-11SQL Server 2008 R22010-04-01SQL Server 20082008-08-06SQL Server 20052005-11-01SQL Server 20002000-11-01

random.seed(a=None, version=2) (version is only avaiable for python 3.x) random.getstate() random.setstate(state) random.randint(a, b) random.randrange(stop) random.randrange(start, stop, step=1) random.choice(seq) random.shuffle(x, random=random.random) random.sample(population, k) ...

This topic illustrates how to avoid adding unwanted files (or file changes) in a Git repo. There are several ways (global or local .gitignore, .git/exclude, git update-index --assume-unchanged, and git update-index --skip-tree), but keep in mind Git is managing content, which means: ignoring actuall...

import module_name import module_name.submodule_name from module_name import * from module_name import submodule_name [, class_name, function_name, ...etc] from module_name import some_name as new_name from module_name.submodule_name import class_name [, function_name, ...etc] Importi...

Haskell is an advanced purely-functional programming language. Features: Statically typed: Every expression in Haskell has a type which is determined at compile time. Static type checking is the process of verifying the type safety of a program based on analysis of a program's text (source...