const { Stack } = require('data-structures-algorithms-js');
const stack = new Stack();

Methods

clear()

stack/stackObject.js, line 93

Resets the STACK data-structure

Example

const { Stack } = require('data-structures-algorithms-js');
const stack = new Stack();

stack.push(15);

stack.clear(); // now stack is empty

isEmpty() → {Boolean}

stack/stackObject.js, line 111

Returns if the STACK data-structure is empty

Returns:

Boolean

Example

const { Stack } = require('data-structures-algorithms-js');
const stack = new Stack();

stack.isEmpty(); // returns true;

stack.push(23);

stack.isEmpty(); //returns false;

pop()

stack/stackObject.js, line 41

Removes a element from the top of the STACK

Example

const { Stack } = require('data-structures-algorithms-js');
const stack = new Stack();

stack.push(3);
stack.push(9);

stack.pop(); //removes number 9

push(element)

stack/stackObject.js, line 25

Adds a element to the top of the STACK

Parameters:

Name	Type	Description
element	*	Element passed to insert

Example

const { Stack } = require('data-structures-algorithms-js');
const stack = new Stack();

stack.push(5); //inserts 5 to the top of the stack

size() → {Number}

stack/stackObject.js, line 79

Returns the size of the STACK data-structure

Returns:

Number -

The number of elements in the STACK

Example

const { Stack } = require('data-structures-algorithms-js');
const stack = new Stack();

stack.size(); // returns 0;

stack.push(8);

stack.size(); //returns 1;

top() → {*|undefined}

stack/stackObject.js, line 61

Returns the element on the top of the STACK

Returns:

* | undefined -

Returns the element on the top or undefined if stack is empty

Example

const { Stack } = require('data-structures-algorithms-js');
const stack = new Stack();

stack.top();// returns undefined

stack.push(23);
stack.push(89);

stack.top(); //returns 89