Hello 👋,

This is an article on implementing stack data structure in javascript

We already know stack is data structure. It has methods likepush,pop,top,size andisEmpty

push

It will insert the element at first.

pop

It will delete and returns the first element.

top

It will return first element

size

It will return size of an stack i.e no of elements in stack

isEmpty

It will returntrue if stack doesn't have any elements otherwise it will returnfalse

classStack{constructor(){this.list=[]}push(ele){this.list.unshift(ele)}pop(){returnthis.list.shift()}top(){returnthis.list[0]}size(){returnthis.list.length}isEmpty(){returnthis.list.length===0}}

Usage

constmystack=newStack()mystack.isEmpty()// truemystack.push("a")// returns undefined but it will add element to listmystack.push("b")mystack.push("c")mystack.isEmpty()// falsemystack.top()// cmystack.pop()// cmystack.top()// bmystack.size()// 2

Thank you!!
Cheers!!!