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Is Mac 48 Address

Description

A media access control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment.

The standard (IEEE 802) format for printing MAC-48 addresses in human-friendly form is six groups of two hexadecimal digits (0 to 9 or A to F), separated by hyphens (e.g. 01-23-45-67-89-AB).

Your task is to check by given string inputString whether it corresponds to MAC-48 address or not.

Example

  • For inputString = "00-1B-63-84-45-E6", the output should be isMAC48Address(inputString) = true;
  • For inputString = "Z1-1B-63-84-45-E6", the output should be isMAC48Address(inputString) = false;
  • For inputString = "not a MAC-48 address", the output should be isMAC48Address(inputString) = false.

Input/Output

  • [execution time limit] 4 seconds (js)

  • [input] string inputString

Guaranteed constraints: 15 ≤ inputString.length ≤ 20.

  • [output] boolean

true if inputString corresponds to MAC-48 address naming rules, false otherwise.

[JavaScript (ES6)] Syntax Tips

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// Prints help message to the console
// Returns a string
function helloWorld(name) {
    console.log("This prints to the console when you Run Tests");
    return "Hello, " + name;
}

Solution

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function isMAC48Address(inputString) {
    var arr = inputString.split('-');
    return arr.length == 6 && arr.every((a)=>/^[A-F0-9]{2}$/.test(a));
}