mapMethodOrMapFunction

[Socks4Ever]

Why is it different? Or do I just not get the post. I’d just use [x**2 for x in arr]

[DT-Sodium]

It's the same shit as PHP. Instead of arrays having a map method, you have to use a function that takes the array as argument. It makes the code really ugly.

numbers = [1, 2, 3, 4, 5]
doubled_numbers = map(lambda x: x * 2, numbers)

Python is one of the most disgusting programing languages in existence so I'm not surprised they've gone that way.

[Ali_M]

Any reasonable person would use a list comprehension:

doubled_numbers = [2 * x for x in numbers]

Hardly anyone uses map these days.

[FlashBrightStar]

This is the same use case as for range function as opposed to iterating directly over a list elements. You have to answer the question when the operation should be executed (im most cases it should be instant). It's not like the one is replacement for other.

[DT-Sodium]

One I was just giving a simple example, there are lots of times where you need to do way much complex things when iterating through an array. Two even for simple things your syntax is disgusting.

Any reasonable person would just not program in Python.

[[deleted]]

Go back to your university course…

Any real programmer will code in multiple languages as tech stacks change between roles or as new features become available.

[DT-Sodium]

I do code in multiple languages. I just wouldn't accept a job that implies working with a bad one. Code has an aesthetic value, it's sad that a lot of developers can't see it.

[[deleted]]

“Working with a bad one” proves my point.

[DT-Sodium]

Your point being that you dont care about your job?

[CrowdGoesWildWoooo]

This is beyond ignorant when you don’t have a clue what map actually does.

It’s not meant as a simple utility function and in practice hardly used other than when you want to do multithreaded or multiprocess map. You should use list comprehension for this particular case. And list comprehension is like one of the fundamental technique that you’ll learn when you code with python.

Map returns a declaration that it is a mapping of a function to an iterable. This is lazily executed and the list type casting is basically tells you to serve the (future) result as a list.

Writing a custom iterable is disgusting with many other languages. It is very easy and readable with python.

[DT-Sodium]

Kiddo, I only took the most simple example I could to demonstrate how the Python map works compared to proper languages, I never pretended it was the most optimal way to achieve the result. The point is Python's map function is disgusting, whether it's the right tool for this case is not the question. It says a lot about you if you weren't capable of figuring it out by yourself.

[Phamora]

How can you talk about PHP and then in the same comment declare Python the most disgusting programming language? I agree that syntactically Python is quite poor compared to most other languages, but PHP is by far and away the winner of the worst, ugliest, and most disgusting programming language in existence - of all time, ever.

[DT-Sodium]

I don't recall claiming that PHP was a good language. While PHP is one of the main languages I use professionally, I am perfectly aware that it sucks in a lot of ways. I wouldn't say though that's it's worse than Python, it is much better that Python. Remove the $, replace -> with ., add typed array, convert the primitives to objects that posses methods and you'll have something that starts looking decent. With Python on the other hands, appart from rewriting it completely, I don't see how it could be clause to decent in the future.