JSFiddle - React, Tailwind, and code Playground

by tanvir_alam_shawn

JavaScript

var collection=[
	{value:1, next:"", previous: ""},
  {value:2, next:"", previous: ""},
  {value:3, next:"", previous: ""},
  {value:3, next:"", previous: ""},
  {value:3, next:"", previous: ""}
];
for(i = 0; i < collection.length; i++) {
	collection[i].next = (i+1) % collection.length;
  collection[i].previous = i > 0 ? i-1 : collection.length-1;
}
console.log(collection)