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  2. Command-line argument parsing - Wikipedia

    en.wikipedia.org/wiki/Command-line_argument_parsing

    Node.js programs are invoked by running the interpreter node interpreter with a given file, so the first two arguments will be node and the name of the JavaScript source file. It is often useful to extract the rest of the arguments by slicing a sub-array from process.argv. [11]

  3. Three-way comparison - Wikipedia

    en.wikipedia.org/wiki/Three-way_comparison

    [2] In C++, the C++20 revision adds the spaceship operator <=>, which returns a value that encodes whether the 2 values are equal, less, greater, or unordered and can return different types depending on the strictness of the comparison. [3] The name's origin is due to it reminding Randal L. Schwartz of the spaceship in an HP BASIC Star Trek ...

  4. Partial application - Wikipedia

    en.wikipedia.org/wiki/Partial_application

    Evaluation of this function might be represented as (,). Note that the result of partial function application in this case is a function that takes two arguments. Partial application is sometimes incorrectly called currying, which is a related, but distinct concept.

  5. Currying - Wikipedia

    en.wikipedia.org/wiki/Currying

    In theoretical computer science, currying provides a way to study functions with multiple arguments in very simple theoretical models, such as the lambda calculus, in which functions only take a single argument. Consider a function (,) taking two arguments, and having the type (), which should be understood to mean that x must have the type , y ...

  6. Function object - Wikipedia

    en.wikipedia.org/wiki/Function_object

    In computer programming, a function object [a] is a construct allowing an object to be invoked or called as if it were an ordinary function, usually with the same syntax (a function parameter that can also be a function). In some languages, particularly C++, function objects are often called functors (not related to the functional programming ...

  7. Function overloading - Wikipedia

    en.wikipedia.org/wiki/Function_overloading

    Function overloading is usually associated with statically-typed programming languages that enforce type checking in function calls. An overloaded function is a set of different functions that are callable with the same name. For any particular call, the compiler determines which overloaded function to use and resolves this at compile time ...

  8. Function (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Function_(computer...

    A function definition starts with the name of the type of value that it returns or void to indicate that it does not return a value. This is followed by the function name, formal arguments in parentheses, and body lines in braces. In C++, a function declared in a class (as non-static) is called a member function or method.

  9. Operator overloading - Wikipedia

    en.wikipedia.org/wiki/Operator_overloading

    Addition is a binary operation, which means it has two operands.In C++, the arguments being passed are the operands, and the temp object is the returned value.. The operation could also be defined as a class method, replacing lhs by the hidden this argument; However, this forces the left operand to be of type Time: