pure-conditions/isEmail.js

Utility methods for simple conditions

function isEmail (string) {
  string = string.toLowerCase()
  const regExp = /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
  return regExp.test(string)
}
module.exports = isEmail