Find the longest common starting substring in a set of strings [closed]
It’s a matter of taste, but this is a simple javascript version: It sorts the array, and then looks just at the first and last items. //longest common starting substring in an array function sharedStart(array){ var A= array.concat().sort(), a1= A[0], a2= A[A.length-1], L= a1.length, i= 0; while(i<L && a1.charAt(i)=== a2.charAt(i)) i++; return a1.substring(0, i); } … Read more