client/src/data/userCheck.js

   1 export function checkNameEmail(o) {
   2   if (typeof o.name === "string") {
   3     if (o.name.length == 0) return "Missing name";
   4     if (!o.name.match(/^[\w-]+$/))
   5       return "Name: alphanumerics, hyphen and underscore";
   6   }
   7
   8   if (typeof o.email === "string") {
   9     if (o.email.length == 0) return "Missing email";
  10     if (!o.email.match(/^[\w.+-]+@[\w.+-]+$/)) return "Invalid email";
  11   }
  12
  13   return "";
  14 }