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43 lines (37 loc) · 698 Bytes
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Copy pathStack.js
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43 lines (37 loc) · 698 Bytes
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class Stack{
constructor(){
this.items = []
}
push(element){
this.items.push(element);
}
pop(){
if(this.isEmpty()){
return "Stack is empty";
}
return this.items.pop();
}
peek(){
if(this.isEmpty()){
return "Stack is empty";
}
return this.items[this.items.length - 1]
}
isEmpty(){
return this.items.length === 0;
}
size(){
return this.items.length;
}
clear(){
this.items = []
}
print(){
console.log(this.items.toString());
}
}
let stack = new Stack();
stack.push(10)
stack.push(20)
stack.push(30)
stack.print()