New list structure in Javascript

Init new lists

const JList = require('./JList');
const list1 = new JList();
const list2 = new JList({'test': 1}, 3 , 'awdawd');

Return elements

list.getElements()

Size of list

list.size();

Clear list

list.clear();

Add element

list.add(1) // one param - index
list.addBack('text') // one param - add value at first free index

Get element

list.get(1) // return value from element at 1 index or if not exist then throw error
list.getBiggestIndex() // return the biggest index in list
list.getValueOfBiggestIndex() // return value of the biggest index in list

Update element

list.update(1, 'text') // two params - index and value. Throw error if element at index not exist

Delete element

list.delete(1) // one param - index. Throw error if element at index not exist