def apply(func: Callable[[T], U], value: T) -> U: return func(value)

Type System & Annotations

Meaning

Applies a function to a value and returns the result.

Primary Function

Apply a function to a value and return the result.

Communicative Purpose

Express the act of applying a function to an argument in a generic, type-safe way.

Função primária

Apply a function to a value and return the result.

Propósito comunicativo

Express the act of applying a function to an argument in a generic, type-safe way.

Situações de gatilho

When you need to abstract function application, e.g., when writing higher-order functions, building pipelines, or decoupling function definition from invocation.

Contextos

Functional programming, generic programming, utility libraries, functional pipelines, higher-order functions.

Família do chunk

map
filter
reduce
compose
pipe

Tag de espaçamento: Immediate

Examples

result = apply(lambda x: x * 2, 5) # returns 10

result = apply(str.upper, 'hello') # returns 'HELLO'

def clean(s): return s.strip()\ncleaned = apply(clean, ' hello ') # returns 'hello'