Source: 📖 Problem Solving with Algorithms and Data Structures using Python 4.4

Date: 2021-10-28

Operations of a stack

• push(item) adds a new item to the top of the stack.
• pop() removes the top item from the stack and returns it.
• peek() returns the top item of the stack without removing it – the stack remains unchanged.
• is_empty() is a boolean function to check if the stack is empty.
• size() returns the number of items in the stack.

See also:

• What is a stack?
• Stacks reverse the items they contain