When should we use lambda function

Question

Is it different bcz it's written in one or is there any other difference too

Answer 1

We can, don't use it in principle, it just allows us to reduce the code. My opinion is better not to use it. But this is my opinion.

Answer 2

My opinion is not to use this feature at all. Instead, write your own function that has a name. For example:

def function():
return print(123)

Answer 3

I generally prefer to use a comprehension wherever possible, e.g. using ~ swim ~'s example "lst = [1, 2, 3] say you want add 5 to each element in the list", instead of using

res = list(map(lambda x: x+5, lst))

I would just use:

res = [i+5 for i in lst]

mainly because it's simple and readable, and I'm not crazy about adding extra words like "list", "map" and "lambda" that I have to scratch my head over 😬

Answer 4

One of lambda applications is in callback definition for gui widgets like buttons. simply those are inline functions and when we need a simple task to do, they are preferable in comparison with writing named functions and stack push /pop overheads.

Answer 5

David Ashton ~ swim ~ best answers guys
I understood what and when to use lambda

Answer 6

Any particular instance where o should and shouldn't be using it

Answer 7

Just a thought, may be user defined function easier to debug!