Introduction

MAC address validation in JavaScript is often required in web-based network management tools and applications. JavaScript regex can efficiently validate the format of MAC addresses.

What is MAC Address Regex?

The regex pattern for MAC addresses in JavaScript checks for the standard hex-digit pairs.

The MAC Address Regex Pattern

• Pattern:

  /^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$/

• This pattern is designed to match MAC addresses with either colon or hyphen separators.

How to Validate MAC Addresses in JavaScript?

To validate MAC addresses in JavaScript:

function isValidMACAddress(mac) {
    const regex = /^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$/;
    return regex.test(mac);
}

console.log(isValidMACAddress("01:23:45:67:89:AB")); // true or false

Uses of MAC Address Regex Validation

1. Client-Side Validation: Ensuring the correctness of MAC addresses entered in web forms.

2. Network Application Development: Validating MAC addresses in network-related web applications.

Conclusion

JavaScript's regex capability simplifies MAC address validation in web environments. For broader and more complex MAC address validations, Akto's regex validator provides an ideal tool for ensuring accuracy and format compatibility.