What is a list in JS?
A List is backed by a doubly linked list with a head node. The list has a head property to an empty node. … The head represents the node one past the end of the list and has no value . Nodes can be manipulated directly. Lists use a Node(value) property as their node constructor.
What are different types of arrays?
There are three different kinds of arrays: indexed arrays, multidimensional arrays, and associative arrays.
What is JSON format?
Valid delimiters and lists:
var list = “1,2,3,4”; var list = “1;2;3;4”; var list = “1:2:3:4”; Obviously, each number is a list element. The default list delimiter is the comma (“,”). Besides numbers, you can also use strings as list elements.
What is the difference between array and ArrayList?
Array is a fixed length data structure whereas ArrayList is a variable length Collection class. We cannot change length of array once created in Java but ArrayList can be changed. We cannot store primitives in ArrayList, it can only store objects. But array can contain both primitives and objects in Java.