JSFiddle - React, Tailwind, and code Playground

by Jessie Lau

JavaScript

var myObj1 = {
	value : 1,
    next:null,
    previous:null
}
var myObj2 = {
	value : 2,
    next:null,
    previous:null
}
var myObj3 = {
	value : 3,
    next:null,
    previous:null
}
var myObj4 = {
	value : 4,
    next:null,
    previous:null
}
myObj1.next = myObj2;
myObj2.next = myObj3;
myObj3.next = myObj4;
myObj4.prev = myObj3;
myObj3.prev = myObj2;
myObj2.prev = myObj1;

var head = myObj1;
var tail = myObj4;

var a = tail.prev;
a.next = null;
tail = a;