``` Strings``` are useful for holding data that can be represented in text form. let string1 = "A string primitive"; let string2 = 'Also a string primitive'; let string3 = `Yet another string ...

The problem with your latter post is that indexOf returns (-1) when the substring is not found. <BR><BR>-1 == true<BR><BR>Instead test if the indexOf ("index2.htm") > -1.