How to get part of href= value from a string value in javascript?

Question

I have a string value that holds a hyperlink. I want only the value after url which is: http://start.somesite.net/media/videos/flash/12345.flv . The value after url= is dynamic so how i can grab that dynamic value and put it as variable?

this is the input string value:

 <h4>
        <a href="http://www.somesite.com/season/?url=http://start.somesite.net/media/videos/flash/12345.flv"
    target="_blank">Download Episode 3</a>

Wow, surprised how many people are treating this as a DOM element when it says "this is the input string value:" — Brian Cray
– Brian Cray, Commented Dec 7, 2012 at 22:24
so the input string is broken html? (h4 not closed in the example) — Christophe
– Christophe, Commented Dec 7, 2012 at 23:17

elclanrs · Accepted Answer · 2012-12-07 22:23:04Z

3

Try:

var url = href.match(/url=(.+)/)[1]

answered Dec 7, 2012 at 22:23

elclanrs

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2 Comments

Brian Cray Over a year ago

url= doesn't exist in the input string

Brian Cray Over a year ago

where does it say url=?

<h4>         <a href="http://www.somesite.com/season/?url=http://start.somesite.net/media/videos/flash/12345.flv"     target="_blank">Download Episode 3</a>

corvallo · Accepted Answer · 2012-12-07 23:05:28Z

1

If you are using jquery try this:

   var link=$('#id_of_the_tag_a').attr('href');
   var linkSplitted=link.split('?url=');
   var final=linkSplitted[1];

If u want you can go here to see the result

edited Dec 7, 2012 at 23:05

answered Dec 7, 2012 at 22:32

corvallo

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1 Comment

SmartK8 Over a year ago

The index in jsFiddle is [1]. Just sayin'

Brian Cray · Accepted Answer · 2012-12-07 22:22:28Z

0

var url = input_str.match(/url=([^"]+)"/)[1];

answered Dec 7, 2012 at 22:22

Brian Cray

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3 Comments

SmartK8 Over a year ago

Actually, he's looking for a part after url= not href=.

SmartK8 Over a year ago

It happens to all of us sometimes. (I wasn't the one who down voted you btw)

user1788736 Over a year ago

Thanks to brian cray and the rest.brian cray your solution gave me the flv url i wanted!

Mert Emir · Accepted Answer · 2012-12-07 22:23:03Z

0

document.getElementsByTagName("a")[0].href

answered Dec 7, 2012 at 22:23

Mert Emir

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Comments

jhummel · Accepted Answer · 2012-12-07 22:38:19Z

0

Turning the string into an actual anchor makes working with url strings a breeze

var div = document.createElement('div');
div.innerHTML = '<a href="http://www.somesite.com/season/?url=http://start.somesite.net/media/videos/flash/12345.flv" target="_blank">Download Episode 3</a>'

var a = div.querySelectorAll('a');
alert(a[0].search.split('=')[1]);

I like this method because it allows you to get all kinds of information if you ever need it:

a[0].protocol
a[0].hostname
a[0].hash
a[0].port
a[0].innerText

edited Dec 7, 2012 at 22:38

answered Dec 7, 2012 at 22:30

jhummel

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1 Comment

Christophe Over a year ago

+1 This would be an elegant solution if the input string was regular html (not broken as in the example). And split('?url=') might work even better.

HMarioD · Accepted Answer · 2012-12-07 22:45:53Z

0

Step by step: Give your a tag one id.

var yourTag = document.getElementsById("your_tag_id"); //Get ref to your tag
var str = yourTag.getAttribute("href"); //Get the entire url
var arr = str.split("="); //Break in two parts.
str = arr[1]; //Take the second part.

edited Dec 7, 2012 at 22:45

answered Dec 7, 2012 at 22:26

HMarioD

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