JSFiddle - React, Tailwind, and code Playground

JavaScript

var regex = /inherits\s+\w+(?:\s*,\s*\w+)*/g;

var input1 = "type MyClass inherits SomeClass,SomeOtherClass implements Node";
var input2 = "type MyClass inherits SomeClass, SomeOtherClass implements Node";

var result1 = input1.match(regex);
var result2 = input2.match(regex);

document.write("result 1: "+ result1);
document.write("<br>")
document.write("\n result 2: "+ result2);