Contenido del Curso
Intermediate Python Techniques
Intermediate Python Techniques
High-Order Functions
A high-order function in programming is a function that can either take other functions as arguments or return a function as its result, or both. This concept is closely related to first-class functions, which are treated like any other variable in a language (can be stored in a variable, passed as an argument to a function, or used in control statements). High-order functions are a key feature in functional programming, enabling more abstract or general-purpose code, facilitating code reuse, and making it easier to manipulate functions or data.
def square(x): return x * x numbers = [1, 2, 3, 4, 5] squared_numbers = map(square, numbers) # Convert the map object to a list squared_numbers_list = list(squared_numbers) print(squared_numbers_list)
A classic example of a high-order function is the map function in Python. This function takes two arguments: a function and an iterable (like a list). It applies the given function to each item of the iterable and returns a map object (which can be easily converted into a list or another iterable type).
In this example:
squareis a simple function that squares its input.mapis the high-order function that takes square and a list of numbers as arguments.- The result is each number in the list numbers squared.
Swipe to show code editor
Suppose you have a list of temperatures in Celsius, and you want to convert all of them to Fahrenheit. The goal will be to apply a custom transformation to each element in the list using map.
- Create a list of numeric values representing temperatures in Celsius.
- Define a function that converts a temperature from Celsius to Fahrenheit.
- Apply the custom function to each element in the list using
map. - Convert the result from
mapinto a list and print it to see the converted temperatures.
Cambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones¡Gracias por tus comentarios!
High-Order Functions
A high-order function in programming is a function that can either take other functions as arguments or return a function as its result, or both. This concept is closely related to first-class functions, which are treated like any other variable in a language (can be stored in a variable, passed as an argument to a function, or used in control statements). High-order functions are a key feature in functional programming, enabling more abstract or general-purpose code, facilitating code reuse, and making it easier to manipulate functions or data.
def square(x): return x * x numbers = [1, 2, 3, 4, 5] squared_numbers = map(square, numbers) # Convert the map object to a list squared_numbers_list = list(squared_numbers) print(squared_numbers_list)
A classic example of a high-order function is the map function in Python. This function takes two arguments: a function and an iterable (like a list). It applies the given function to each item of the iterable and returns a map object (which can be easily converted into a list or another iterable type).
In this example:
squareis a simple function that squares its input.mapis the high-order function that takes square and a list of numbers as arguments.- The result is each number in the list numbers squared.
Swipe to show code editor
Suppose you have a list of temperatures in Celsius, and you want to convert all of them to Fahrenheit. The goal will be to apply a custom transformation to each element in the list using map.
- Create a list of numeric values representing temperatures in Celsius.
- Define a function that converts a temperature from Celsius to Fahrenheit.
- Apply the custom function to each element in the list using
map. - Convert the result from
mapinto a list and print it to see the converted temperatures.
Cambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones¡Gracias por tus comentarios!
Cambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones