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  2. JavaScript syntax - Wikipedia

    en.wikipedia.org/wiki/JavaScript_syntax

    The Math object contains various math-related constants (for example, π) and functions (for example, cosine). (Note that the Math object has no constructor, unlike Array or Date. All its methods are "static", that is "class" methods.) All the trigonometric functions use angles expressed in radians, not degrees or grads.

  3. JavaScript - Wikipedia

    en.wikipedia.org/wiki/JavaScript

    This is an accepted version of this page This is the latest accepted revision, reviewed on 18 January 2025. High-level programming language Not to be confused with Java (programming language), Javanese script, or ECMAScript. JavaScript Screenshot of JavaScript source code Paradigm Multi-paradigm: event-driven, functional, imperative, procedural, object-oriented Designed by Brendan Eich of ...

  4. First-class function - Wikipedia

    en.wikipedia.org/wiki/First-class_function

    First-class functions are a necessity for the functional programming style, in which the use of higher-order functions is a standard practice. A simple example of a higher-ordered function is the map function

  5. Prototype-based programming - Wikipedia

    en.wikipedia.org/wiki/Prototype-based_programming

    In comparison, a "class" is an abstract thing, in which objects can belong. For example, all kilogram-objects are in the class of KilogramObject, which might be a subclass of MetricObject, and so on. Prototypal inheritance in JavaScript is described by Douglas Crockford as You make prototype objects, and then … make new instances.

  6. Functional programming - Wikipedia

    en.wikipedia.org/wiki/Functional_programming

    In calculus, an example of a higher-order function is the differential operator /, which returns the derivative of a function . Higher-order functions are closely related to first-class functions in that higher-order functions and first-class functions both allow functions as arguments and results of other functions.

  7. Comparison of programming languages (syntax) - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_programming...

    The enclosed text becomes a string literal, which Python usually ignores (except when it is the first statement in the body of a module, class or function; see docstring). Elixir The above trick used in Python also works in Elixir, but the compiler will throw a warning if it spots this.

  8. First-class citizen - Wikipedia

    en.wikipedia.org/wiki/First-class_citizen

    Whether this suffices to call function values first-class is disputed. Some authors require it be possible to create new functions at runtime to call them 'first-class'. [ citation needed ] Under this definition, functions in C are not first-class objects; instead, they are sometimes called second-class objects , because they can still be ...

  9. this (computer programming) - Wikipedia

    en.wikipedia.org/wiki/This_(computer_programming)

    This example is artificial since this is direct recursion, so overriding the factorial method would override this function; more natural examples are when a method in a derived class calls the same method in a base class, or in cases of mutual recursion. [4] [5]