Add http if necessary to a link

Question

the following is a string that is displayed in a jquery confirm box.

warningString = "<p style='margin-top: 12px;'>Please Verify the following URL is a valid Redirect URL.</p> <a href= " + redirURL + "' target='_blank'>" + redirURL + "</a><p style='margin-top: 8px;'> By clicking verify you are confirming this is a valid URL and will proceed with checkout. </p>";

I would like the link to add http:// if the variable redirURL is missing it. I am a little lost on how i would do it.

thank you

score 7 · Answer 1 · answered Jun 07 '13 at 16:53

7

So how about:

if(redirURL.IndexOf('http') !== 0)
  redirURL = 'http://' + redirURL;
warningString = "<p style='margin-top: 12px;'>Please Verify the following URL is a valid Redirect URL.</p> <a href= " + redirURL + "' target='_blank'>" + redirURL + "</a><p style='margin-top: 8px;'> By clicking verify you are confirming this is a valid URL and will proceed with checkout. </p>";

answered Jun 07 '13 at 16:53

Gabe

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2

`< 0` may not be the best solution (`www.httpd.com`). Try `!== 0`. – Paul Jun 07 '13 at 16:53
1

It doesn't matter since `indexOf` will never return `""` – nullability Jun 07 '13 at 16:55
true, im in the habit of === now, so i often don't apply common sense – Shanimal Jun 07 '13 at 16:56
fwiw http://stackoverflow.com/questions/359494/javascript-vs-does-it-matter-which-equal-operator-i-use – Shanimal Jun 07 '13 at 16:59

Add http if necessary to a link

1 Answers1