it would be better if they explain hard questions answer.how to know that

Question

some question answers I don't get..

Answer 1

Run the code yourself. If it still doesn't make sens, separate it into smaller parts, and run them separately. That's what I do :)

For example: it is difficult to understand what the following code does (python):

a=['a',1,7,'abc',10]
print ( a[a[1:2][0]] )

But I can separate it into meaningful pieces, small enough to follow:

a=['a',1,7,'abc',10]
print (a[1:2])
print (a[1:2][0])
print ( a[a[1:2][0]] )

Answer 2

thanks man 👏👏