JSFiddle - React, Tailwind, and code Playground

JavaScript

var cookieTest = '{"items":[{"id":"5054","nodeId":"3286"},{"id":"8888","nodeId":"7777"},{"id":"3421","nodeId":"1234"},{"id":"8748","nodeId":"2435"}]}';
// Check a cookie exists
    if (cookieTest != null) {

        var test = JSON.parse(cookieTest)
        var items = test.items ? test.items : [];
        for(thing in items) {
            var current = items[thing];
            console.log(current.id);
        }
    }