This content originally appeared on DEV Community and was authored by Nikhil Bobade
Stack:-
A Stack is a commonly used linear data structure a stack data structure follows particular operations that are performed Stack is behaved like Last in first out (LIFO) In this, we have three basic operations.
- Push Method
- Pop Method
- Peek Method
- Is Empty Method
Push Method :
The push method is adding data into any type of data into the stack.
Peek Method:
Peek is a very easy operation this method is given you which item or data is on the top of the list so this peek method returns the top element
Pop Method:
Pop is removed the top item from the stack
Is Empty Method:
The is empty method is very important this return if the stack is empty then its return true.
When we use push D is added then call stack on top is D then we use pop then D is removed from the stack.
Stack example using Javascript
//© Inspiration from coding garden
class Stack {
constructor(){
this.data = {};
this.size = 0;
}
push(item){
this.data[this.size] = item;
this.size +=1
}
peek(){
return this.data[this.size - 1];
}
pop(){
const item = this.peek();
this.size -= 1;
delete this.data[this.size];
return item;
}
}
const launguage = new Stack();
launguage.push("Typescript")
launguage.push("Angular");
launguage.push("JS");
launguage.push("C++");
console.log(launguage)
console.log(launguage.pop())
console.log(launguage)
console.log(launguage.pop())
console.log(launguage)
Output
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This content originally appeared on DEV Community and was authored by Nikhil Bobade
Nikhil Bobade | Sciencx (2021-04-30T13:28:08+00:00) Stack Data Structure Using Javascript. Retrieved from https://www.scien.cx/2021/04/30/stack-data-structure-using-javascript/
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