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Dynamic characters are those that change over the course of the story, while static characters remain the same throughout. An example of a popular dynamic character in literature is Ebenezer Scrooge, the protagonist of A Christmas Carol by Charles Dickens. At the start of the story, he is a bitter miser, but by the end of the tale, he ...
From a Programming Languages perspective, it's reasonable to say that flow-sensitive typing is the feature that finally made it possible to build usable type-safe programming languages with union types and without rampant dynamic checking.
dynamic with optional static typing newLisp: implicit dynamic NEWP: strong static Newspeak: dynamic NewtonScript: dynamic Nial: dynamic Nim: strong partially implicit (type inference) static Nickle: strong Nu: dynamic Oberon: strong explicit nominal static and partially dynamic [TS 6] Objective-C: strong explicit nominal dynamic with optional ...
The process of verifying and enforcing the constraints of types—type checking—may occur at compile time (a static check) or at run-time (a dynamic check). If a language specification requires its typing rules strongly, more or less allowing only those automatic type conversions that do not lose information, one can refer to the process as strongly typed; if not, as weakly typed.
For example, Aahz Maruch observes that "Coercion occurs when you have a statically typed language and you use the syntactic features of the language to force the usage of one type as if it were a different type (consider the common use of void* in C). Coercion is usually a symptom of weak typing.
For example, a programmer might write a statement like delay: seconds := 4 in their code, where the colon is the conventional mathematical symbol to mark a term with its type. That is, this statement is not only setting delay to the value 4 , but the delay: seconds part also indicates that delay 's type is an amount of time in seconds.
For example: if variable X is going to store integers then its type must be declared as integer. The term "manifest typing" is often used with the term latent typing to describe the difference between the static , compile-time type membership of the object and its run-time type identity.
In computer science, type safety and type soundness are the extent to which a programming language discourages or prevents type errors.Type safety is sometimes alternatively considered to be a property of facilities of a computer language; that is, some facilities are type-safe and their usage will not result in type errors, while other facilities in the same language may be type-unsafe and a ...