order array in alphabetical order by key code example

Example 1: array sort by alphabetical javascript

users.sort((a, b) => a.firstname.localeCompare(b.firstname))

Example 2: javascript alphabetical sort in order

function alphabetized(s) {
 var ans="";
 for (var i=97; i<123; ++i)
   for (var j=0; j<s.length; j++)
     if (s[j].toLowerCase().charCodeAt()==i)
     ans+=s[j]
 return ans
}