Manifest typing

In computer science, manifest typing is explicit identification by the <a href="/facts/Software_programmer/WGTS1Jv9">software programmer</a> of the type of each variable being declared. 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 <a href="/facts/Latent_typing/llBjqoEn">latent typing</a> to describe the difference between the <a href="/facts/Static_variable/dYIs2E5p">static</a>, <a href="/facts/Compile_time/yCdI3oqn">compile-time</a> type membership of the object and its <a href="/facts/Run_time_(program_lifecycle_phase)/lCxKsrzB">run-time</a> type identity.
In contrast, some programming languages use implicit typing (a.k.a. <a href="/facts/Type_inference/vX9K8Qhf">type inference</a>) where the type is deduced from context at compile-time or allow for <a href="/facts/Type_system/Tz0bAMS9">dynamic typing</a> in which the variable is just declared and may be assigned a value of any type at runtime.
It's important to know the difference between manifest/implicit typing and static/dynamic typing. The first one describes how the variables (and it's types) are defined, while the second describes whether the language checks the types at compile or execution time.

Manifest typing open-in-new

Manifest typing