Trying to validate email endings in javascript-CodePudding

Question: I am trying to validate email endings in an array

let input = '[email protected]' // This is grabbed dynamically but for sake of explanation this works the same

let validEndings = ['@gmail.com', '@mail.com', '@aol.com'] //and so on

if(input.endsWith(validEndings)){
  console.log('valid')
}else{
  console.log('invalid')
}

I can get this to work when validEndings is just a singular string e.g let validEndings = '@gmail.com' but not when its in an array comparing multiple things

CodePudding user response：

You can solve the problem with regex. Example:

const input = '[email protected]';
const validEndingsRegex = /@gmail.com$|@mail.com$|@aol.com$/g;
const found = input.match(validEndingsRegex);

if (found !== null) {
  console.log('valid')
} else {
  console.log('invalid')
}

CodePudding user response：

You can check if the validEndings is an array, then you can loop the values and find out if the input endsWith the current iterated item.

let input = '[email protected]' // This is grabbed dynamically but for sake of explanation this works the same

let validEndings = ['@gmail.com', '@mail.com', '@aol.com'] //and so on


if(Array.isArray(validEndings)) { // Check if validEndings isArray
  validEndings.forEach(item => {
    if(input.endsWith(item)){
      console.log('valid item');
    }
  })
} else if(input.endsWith(validEndings)){ // If validEndings is normal string
  console.log('valid')
}else{
  console.log('invalid')
}