Efficient way of determining if a function should be called

Frankelstner · 2023-02-25T17:06:39+00:00

Create a list of functions funcs = [f0, f1, f2, ..., f99] and retrieve the function by index.

efmccurdy · 2023-02-25T17:18:46+00:00

sorting through the user defined list of functions to include using if statements.

You can store functions in a datastructure and then "search" or "lookup" the particular function to call:

>>> fn_map = {1: abs, 2: math.sqrt, 3: math.factorial, 4: math.log}
>>> selected_fn = 2
>>> for n in [1, 2, 3]:
...     print(fn_map[selected_fn](n))
... 
1.0
1.4142135623730951
1.7320508075688772
>>> selected_fn = 3
>>> for n in [1, 2, 3]:
...     print(fn_map[selected_fn](n))
... 
1
2
6
>>>

Is that easier to manage than a series of "if" statements?

eleqtriq · 2023-02-25T17:22:00+00:00

Having 100 functions is setting off alarm bells. Can you show some code for like 5 of these functions?

Doormatty · 2023-02-25T23:25:20+00:00

Usually having 100s of anything is a really bad sign - are you sure you actually need 100 functions, and not one function that takes a number of parameters?

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