JSFiddle - React, Tailwind, and code Playground

JavaScript

var name1 = "unassigned";
var name2 = "( Unassigned \)";
var name3 = "Unassigned";

var reg = new RegExp('^(unassigned|\\( Unassigned \\)|Unassigned)$');

var m1 = name1.match(reg);
var m2 = name2.match(reg);
var m3 = name3.match(reg);

console.log(!m1);
console.log(!m2);
console.log(!m3);