1
var numUniqueEmails = function (emails) {
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  let set = new Set();
3

4
  for (let email of emails) {
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    let curr = email.split("@");
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    let currEmail = "";
7

8
    for (let char of curr[0]) {
9
      if (char === ".") continue;
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      if (char === "+") break;
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      currEmail += char;
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    }
13

14
    currEmail += "@" + curr[1];
15
    set.add(currEmail);
16
  }
17

18
  return set.size;
19
};