verify-port-number

Verifies that a string represents a valid port number.

Usage no npm install needed!

<script type="module">
  import verifyPortNumber from 'https://cdn.skypack.dev/verify-port-number';
</script>

Single method, verifyPortNumber(candidate).

When called with throw Error with a message in the form:

Port must be a value an positive integer less than or equal to 65535.  You entered 'candidate'.

If the string doesn't represent a valid port number, that being an integer from 1 to 65535.