this post was submitted on 21 Mar 2024
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In functional programming, everything is seen as a mathematical function, which means for a given input there is a given output and there can be no side effects. Changing a variable's value is considered a side effect and is thus not possible in pure functional programming. To work around this, you typically see a lot of recursive and higher order functions.
Declaring all values as const values is something you would do if you're a diehard functional programmer, as you won't mutate any values anyway.
What is the best practice then when you want to update a variable's value?
Depends on how deep down the rabbit hole you want to go :p
You just dropped a mind bomb on me. Suddenly things make sense :o