Tutorial by Topics: i

The Dropbox API allows developers to build Dropbox functionality directly into their apps. The API allows access to features such as file uploading, downloading, sharing, searching, and restoration. The API can be used across platforms such as Windows, Mac, Linux, iOS, Android, or any other that ...

Editing R Docs on Stack Overflow See the documentation guidelines for general rules when creating documentation. A few features of R that immigrants from other language may find unusual Unlike other languages variables in R need not require type declaration. The same variable can be assi...

Rust is a systems programming language designed for safety, speed, and concurrency. Rust has numerous compile-time features and safety checks to avoid data races and common bugs, all with minimal to zero runtime overhead. Stable VersionRelease Date1.17.02017-04-271.16.02017-03-161.15.12017-02...

trap action sigspec... # Run "action" on a list of signals trap sigspec... # Omitting action resets traps for signals ParameterMeaning-pList currently installed traps-lList signal names and corresponding numbers The trap utility is a special shell built-in. It's defined in POSI...

In C, some expressions yield undefined behavior. The standard explicitly chooses to not define how a compiler should behave if it encounters such an expression. As a result, a compiler is free to do whatever it sees fit and may produce useful results, unexpected results, or even crash. Code that i...

Due to the flaws of rand(), many other default implementations have emerged over the years. Among those are: arc4random() (available on OS X and BSD) random() (available on Linux) drand48() (available on POSIX)

ls [OPTION]... [FILE]... OptionDescription-a, --allList all entries including ones that start with a dot-A, --almost-allList all entries excluding . and ..-cSort files by change time-d, --directoryList directory entries-h, --human-readableShow sizes in human readable format (i.e. K, M)-HSame...

Shell aliases are a simple way to create new commands or to wrap existing commands with code of your own. They somewhat overlap with shell functions, which are however more versatile and should therefore often be preferred. The alias will only be available in the shell where the alias command...

Integer Literals is a numeral without a decimal point for example 0, 1, 42, ... is implicitly applied to fromInteger which is part of the Num type class so it indeed has type Num a => a - that is it can have any type that is an instance of Num Fractional Literals is a numeral with a ...

Functions in Go provide organized, reusable code to perform a set of actions. Functions simplify the coding process, prevent redundant logic, and make code easier to follow. This topic describes the declaration and utilization of functions, arguments, parameters, return statements and scopes in Go. ...

'use strict'; "use strict"; `use strict`; Strict mode is an option added in ECMAScript 5 to enable a few backwards-incompatible enhancements. Behaviour changes in "strict mode" code include: Assigning to undefined variables raises an error instead of defining new ...

require spl_autoload_require Autoloading, as part of a framework strategy, eases the amount of boilerplate code you have to write.

HTML offers three ways for specifying lists: ordered lists, unordered lists, and description lists. Ordered lists use ordinal sequences to indicate the order of list elements, unordered lists use a defined symbol such as a bullet to list elements in no designated order, and description lists use ind...

mydict = {} mydict[k] = value value = mydict[k] value = mydict.get(k) value = mydict.get(k, "default_value") ParameterDetailskeyThe desired key to lookupvalueThe value to set or return Helpful items to remember when creating a dictionary: Every key must be unique (otherwi...

git config [<file-option>] name [value] # one of the more common use cases of git config ParameterDetails--systemEdits the system-wide configuration file, which is used for every user (on Linux, this file is located at $(prefix)/etc/gitconfig)--globalEdits the global configuration fi...

command </path/to/file # Redirect standard input to file command >/path/to/file # Redirect standard output to flie command file_descriptor>/path/to/file # Redirect output of file_descriptor to file command >&file_descriptor # Redirect output to file_descriptor command file_des...

Xamarin.iOS allows you to create native iOS applications using the same UI controls you would in Objective-C and Xcode, but with the flexibility and elegance of a modern language (C#), the power of the .NET Base Class Library (BCL), and two first-class IDEs - Xamarin Studio and Visual Studio - at ...

Xamarin.Android allows you to create native Android applications using the same UI controls as you would in Java, except with the flexibility and elegance of a modern language (C#), the power of the .NET Base Class Library (BCL), and two first-class IDEs - Xamarin Studio and Visual Studio - at the...