simple last-in-first-out(LIFO) data structure
npm install stack-ll
``js`
var Stack = require('stack-ll')
var s = new Stack()
s.push('hello')
s.push('world')
console.log(s.pop())
console.log(s.pop())
#### stack = new Stack()
Creates a new stack object
#### stack.push(val)
pushes val into stack object
#### stack.pop()
removes top of stack element and return its value
#### stack.length
returns length of the stack
#### stack.forEach(callback(val))`
Iterate over each value of stack using callback
MIT