how to sort string js code example

Example 1: javascript order by string array

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

Example 2: javascript sort function

var points = [40, 100, 1, 5, 25, 10];
points.sort((a,b) => a-b)

Example 3: js string sort

if (item1.attr < item2.attr)
  return -1;
if ( item1.attr > item2.attr)
  return 1;
return 0;