JAVASCRIPT

Validate Email Address with Regex

Learn to validate email addresses using a robust regular expression in JavaScript to ensure correct format for user input.

function isValidEmail(email) {
  const emailRegex = /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/;
  return emailRegex.test(email);
}

// Example usage:
// console.log(isValidEmail("[email protected]")); // true
// console.log(isValidEmail("invalid-email")); // false

How it works: This JavaScript function `isValidEmail` uses a regular expression to check if a given string conforms to a common email format. It validates for the presence of an "@" symbol, a domain name, and a top-level domain, ensuring a basic structural correctness suitable for user input validation.

Validate Email Address with Regex

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