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read.csv(file, header = TRUE, sep = ",", quote = """, dec = ".", fill = TRUE, comment.char = "", ...) read.csv2(file, header = TRUE, sep = ";", quote = """, dec = ",", fill = TRUE, comment.char = "", ....

Express is a minimal and flexible Node.js web application framework, providing a robust set of features for building web applications. The official website of Express is expressjs.com. The source can be found on GitHub. app.get(path [, middleware], callback[, callback...]) app.put(path [, mi...

Python provides both builtin methods and external libraries for creating, modifying, parsing, and manipulating dates and times.

VersionRelease Date0.6.0-dev2017-06-010.5.02016-09-190.4.02015-10-080.3.02014-08-210.2.02013-11-170.1.02013-02-14

There are many situations where it is useful to return several values from a function: for example, if you want to input an item and return the price and number in stock, this functionality could be useful. There are many ways to do this in C++, and most involve the STL. However, if you wish to avoi...

Kotlin is a statically-typed object-oriented programming language developed by JetBrains primarily targeting the JVM. Kotlin is developed with the goals of being quick to compile, backwards-compatible, very type safe, and 100% interoperable with Java. Kotlin is also developed with the goal of prov...

Used to prevent name collisions when using multiple libraries, a namespace is a declarative prefix for functions, classes, types, etc. namespace identifier(opt) { declaration-seq } inline namespace identifier(opt) { declaration-seq } /* since C++11 */ inline(opt) namespace attribute-specifie...

AttributeDetailsnameSets the element's name, to be used with an a tag to change the iframe's src.widthSets the element's width in pixels.heightSets the element's height in pixels.srcSpecifies the page that will be displayed in the frame.srcdocSpecifies the content that will be displayed in the fra...

The $ character introduces parameter expansion, command substitution, or arithmetic expansion. The parameter name or symbol to be expanded may be enclosed in braces, which are optional but serve to protect the variable to be expanded from characters immediately following it which could be interprete...

Classes and Objects are used to to make your code more efficient and less repetitive by grouping similar tasks. A class is used to define the actions and data structure used to build objects. The objects are then built using this predefined structure. class <ClassName> [ extends <Par...

MySQL: CREATE TABLE Employees ( Id int NOT NULL, PRIMARY KEY (Id), ... ); Others: CREATE TABLE Employees ( Id int NOT NULL PRIMARY KEY, ... );

RecyclerView addItemDecoration(RecyclerView.ItemDecoration decoration) RecyclerView addItemDecoration(RecyclerView.ItemDecoration decoration, int index) ParameterDetailsdecorationthe item decoration to add to the RecyclerViewindexthe index in the list of decorations for this RecyclerView. T...

#include <stdio.h> /* Include this to use any of the following sections */ FILE *fopen(const char *path, const char *mode); /* Open a stream on the file at path with the specified mode */ FILE *freopen(const char *path, const char *mode, FILE *stream); /* Re-open an existing stream on the...

variable.member_var = constant; variable.member_function(); variable_pointer->member_var = constant; variable_pointer->member_function(); Note that the only difference between the struct and class keywords is that by default, the member variables, member functions, and base classe...

std::shared_ptr<ClassType> variableName = std::make_shared<ClassType>(arg1, arg2, ...); std::shared_ptr<ClassType> variableName (new ClassType(arg1, arg2, ...)); std::unique_ptr<ClassType> variableName = std::make_unique<ClassType>(arg1, arg2, ...); // C++14 std::...

See also separate topic on Overload Resolution Ambiguities can occur when one type can be implicitly converted into more than one type and there is no matching function for that specific type. For example: void foo(double, double); void foo(long, long); //Call foo with 2 ints foo(1, 2);...

jQuery UI is a JavaScript UI library, built on top of jQuery, offering a set of user interface interactions, effects and widgets. VersionRelease Date1.7.02009-03-061.7.12009-03-191.7.22009-06-121.7.42010-05-041.8.02010-03-231.8.12010-05-041.8.22010-06-071.8.42010-08-101.8.52010-09-171.8.62010-...