split() in javascript

Question

I have code:

  function _filter() {
    var url = window.location;
    alert(url);
    alert(url.split("/")[1]);
  }

When I launch it I get only one alert message:

http://localhost:8000/index/3/1.

Why I don't get the second alert message?

window.location is a non-string object. You either need to call toString() or just grab window.location.href. — Alex
– Alex, Commented Nov 23, 2010 at 7:12

Sarfraz · Accepted Answer · 2010-11-23 07:14:45Z

14

Adding .toString() works and avoids this error:

TypeError: url.split is not a function

function _filter() {
    var url = window.location;
    alert(url);
    alert(url.toString().split("/")[2]);
}

When run on this very page, the output is:

stackoverflow.com

edited Nov 23, 2010 at 7:14

answered Nov 23, 2010 at 7:09

Sarfraz

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2 Comments

Guffa Over a year ago

The location object has the href property intended just for this.

Sarfraz Over a year ago

@Guffa: True href should be added with no need to use toString.

jerjer · Accepted Answer · 2010-11-23 07:12:38Z

4

The location object is the cause of this, window.location is an object not a string it is the location.href or location.toString().

  function _filter() {
    var url = window.location.href; // or window.location.toString()
    alert(url);
    alert(url.split("/")[1]);
  }

answered Nov 23, 2010 at 7:12

jerjer

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Comments

Guffa · Accepted Answer · 2010-11-23 07:12:33Z

3

The value of window.location is not a string, you want the href property of the location object:

function _filter() {
  var url = window.location.href;
  alert(url);
  alert(url.split("/")[1]);
}

answered Nov 23, 2010 at 7:12

Guffa

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Comments

Pranay Rana · Accepted Answer · 2010-11-23 07:12:32Z

1

Because your url is ans object so you need to convert this to string than you apply split function

function _filter() {
    var url = window.location+ '';
    alert(url);
    alert(url.split("/")[2]);
}

answered Nov 23, 2010 at 7:12

Pranay Rana

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Comments

Henry H · Accepted Answer · 2010-11-23 07:16:44Z

1

The index [1] is in between the two slashes of http:// which is null and wont be alerted. Index [2] is the localhost:8000 you're probably looking for.

Simple window.location.hostname should be useful too.

answered Nov 23, 2010 at 7:16

Henry H

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1 Comment

Guffa Over a year ago

+1 for pointing out that the location object has other properties that could be used to get parts of the URL.

g.geloso · Accepted Answer · 2010-11-23 07:10:06Z

0

To understand how many pieces you get from splitting operation you can alert the .lenght of url.split, are you sure that the script doesn't block?

Use firebug to understand that

answered Nov 23, 2010 at 7:10

g.geloso

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Comments

WaiLam · Accepted Answer · 2010-11-23 07:11:46Z

0

url.split("/")[1] will equal to null. So, it alert(null) will not display msg.

answered Nov 23, 2010 at 7:11

WaiLam

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1 Comment

WaiLam Over a year ago

Yeah. the location object didn't have split function.

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