I want to do this in `node.js`

example.js

```
var str = "a@universe.dev";
var n = str.includes("b@universe.dev");
console.log(n);

```

but with restriction, so it can search for that string only after the character in this example `@` so if the new search string would be `c@universe.dev` it would still find it as the same string and outputs `true` because it's same "domain" and what's before the character in this example everything before `@` would be ignored. 

Hope someone can help, please