To help me conceptualize stacks and also some of their functions, I usually think of it as a stack of books or a stack of Jenga bricks as you can see on the cover image above. A stack is a linear data structure that functions on the Last In First Out (LIFO) principle which means that the last element in a stack is the first one to be removed, just like a stack of books.
Stack Implementation in Python
Stack Implementation in Go
Uses of Stacks
It is used to evaluate arithmetic operations.
It is used in backtracking, a recursive algorithm used for solving optimization problems.
It is used for delimiter checking.
It is used to reverse a given set of data.
It is used to process function calls.