If it's inside the variable

Question

Possible Duplicate:
JavaScript: string contains

I have a simple question for you. I have a variable with my url. Now i want check this url. I make this javascript:

var url = "http://www.mikevierwind.nl";

if(url == "localhost" ) {
    alert("test");
}

How can i make the follow thing. When mikewind is in variable. Than run it. The variable can also be mikevierwind.be and mikevierwind.eu. But the script must always than run. I must check of mikevierwind is in the variable.

You just need to check the URL [substring](http://stackoverflow.com/questions/1789945/javascript-string-contains) — Vishal, Aug 01 '12 at 13:18

score 6 · Accepted Answer · edited Aug 01 '12 at 13:21

6

if (url.indexOf("mikevierwind") >= 0 ) {
  alert("test")
}

edited Aug 01 '12 at 13:21

Christoph

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answered Aug 01 '12 at 13:15

Vanamali

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That comparison should really be `!= -1` rather than `> 0`, since the position in the string doesn't matter. – Anthony Grist Aug 01 '12 at 13:18
`indexOf()` may return 0 if the string starts with `mikevierwind`. While I appreciate that it shouldn't as a URL, this should be noted for future readers. – Jason McCreary Aug 01 '12 at 13:19

score 3 · Answer 2 · answered Aug 01 '12 at 13:15

3

If you only care if mikevierwind is in the string, use indexOf()

var url = "http://www.mikevierwind.nl";

if(url.indexOf('mikevierwind') != -1) {
    alert("test");
}

answered Aug 01 '12 at 13:15

Jason McCreary

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score 1 · Answer 3 · answered Aug 01 '12 at 13:15

1

Try the following:

var url = "http://www.mikevierwind.nl";

if(url.indexOf('mikevierwind') != -1) {
    alert("test");
}

answered Aug 01 '12 at 13:15

Ram

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score 0 · Answer 4 · answered Aug 01 '12 at 13:14

0

Try this instead of local host

var url = "http://www.mikevierwind.nl";

if(url == document.location.href ) {
    alert("test");
}

answered Aug 01 '12 at 13:14

Dominic Green

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score 0 · Answer 5 · answered Aug 01 '12 at 13:15

var s = "mikewind.bet";
alert(s.indexOf("mikewind") != -1);
//indexOf returns the position of the string in the other string. If not found, it will return -1.

https://developer.mozilla.org/en/Core%5FJavaScript%5F1.5%5FReference/Objects/String/indexOf

var str="This is testing for javascript search !!!";
if(str.search("for") != -1) {
   //logic
}

If it's inside the variable

5 Answers5