const regex = /^[a-zA-Z]+([- ][a-zA-Z]+)?(, [a-zA-Z]+([- ][a-zA-Z]+)?)?$/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^[a-zA-Z]+([- ][a-zA-Z]+)?(, [a-zA-Z]+([- ][a-zA-Z]+)?)?$', 'gm')
const str = `LastName
LastName SecondLastName
LastName-SecondLastName
LastName, F
LastName SecondLastName, F
LastName-SecondLastName, F
LastName, FirstName
LastName SecondLastName, FirstName
LastName-SecondLastName, FirstName
LastName SecondLastName, FirstName SecondFirstName
LastName SecondLastName, FirstName-SecondFirstName
LastName-SecondLastName, FirstName-SecondFirstName
LastName-SecondLastName, FirstName-SecondFirstName!
LastName-SecondLastName, FirstName#SecondFirstName
LastName, FirstName, ThirdName
LastName , FirstName
,FirstName
, FirstName
LastName,
LastName,Any special Character (,?!#@%* etc)
LastName,FirstName`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions