Question

I want to check if a string is ending with “.php” extension, if not I want to add .html at the end. I have already tried various “slice” methods without success.

Answer 1

You can use Regex for that

var string1 = "www.example.com/index";
var newString = !/\.php$/i.test(string1)? string1+".html": string1;
// newString = "www.example.com/index.html"