day7-regexp-2.js

/*
Task
Complete the function in the editor below by returning a RegExp object, re, that matches any string s satisfying both of the following conditions:
- String s starts with the prefix Mr., Mrs., Ms., Dr., or Er.
- The remainder of string s (i.e., the rest of the string after the prefix) consists of one or more upper and/or lowercase English alphabetic letters (i.e., [a-z] and [A-Z]).

Constraints
The length of string s is >= 3 .

Output Format
The function must return a RegExp object that matches any string s satisfying both of the given conditions.
*/

function regexVar() {
    let re = /^(Mr|Mrs|Ms|Dr|Er|)\.[a-zA-Z]+$/;

    return re;
}