Can anyone tell me what is the difference between \D and [a-zA-Z]?

JavaScript

/\b[aeiou]+\D+\b/i

For Python 3

Regex_Pattern = r'\b[aeiouAEIOU][a-zA-Z]*\b'

JAVAScript Solution

var Regex_Pattern = /\b[aeiouAEIOU][a-zA-z]*\b/; //Do not delete '/'. Replace __________ with your regex.