16 Facts About Static type

In computer programming, a type system is a logical system comprising a set of rules that assigns a property called a type to every "term".

Whether automated by the compiler or specified by a programmer, a Static type system makes program behavior illegal if outside the Static type-system rules.

In some languages, such as Haskell, for which Static type inference is automated, lint might be available to its compiler to aid in the detection of error.

Static type checking is the process of verifying the type safety of a program based on analysis of a program's text.

Static type checking can be considered a limited form of program verification, and in a type-safe language, can be considered an optimization.

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That is, if a Static type system is both sound and decidable, then it must be incomplete.

Dynamic Static type checking is the process of verifying the Static type safety of a program at runtime.

Programming languages that include dynamic type checking but not static type checking are often called "dynamically-typed programming languages".

Objects in object-oriented languages are usually accessed by a reference whose static target type is equal to either the object's run-time type or a supertype thereof.

Certain languages, for example Clojure, Common Lisp, or Cython are dynamically type checked by default, but allow programs to opt into static type checking by providing optional annotations.

Static type typing usually results in compiled code that executes faster.

Statically-typed languages that lack type inference require that programmers declare the types that a method or function must use.

Static type believes this is advantageous, because what he calls mandatory type systems make languages less expressive and code more fragile.

Many type systems have been created that are specialized for use in certain environments with certain types of data, or for out-of-band static program analysis.

Any function handling this union Static type would have to deal with integers in this complete range.

Gradual typing uses a special type named dynamic to represent statically-unknown types; gradual typing replaces the notion of type equality with a new relation called consistency that relates the dynamic type to every other type.