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I am currently getting response error in html format. It is of type string.

"<!DOCTYPE html>\r\n
<html>
  <head>
    <title>Data already exists</title>
  </head>
</html>"

I wanted to retrieve the content inside the <title>, for above instance "Data already exists". Can anybody suggest a appropriate regular expression to capture that text.

Please any help is appreciated!

I am currently getting response error in html format. It is of type string.

"<!DOCTYPE html>\r\n
<html>
  <head>
    <title>Data already exists</title>
  </head>
</html>"

I wanted to retrieve the content inside the <title>, for above instance "Data already exists". Can anybody suggest a appropriate regular expression to capture that text.

Please any help is appreciated!

  • javascript
  • regex
Share Improve this question asked Aug 29, 2012 at 1:17 inspiringmyselfinspiringmyself 5901 gold badge11 silver badges29 bronze badges 1
  • I really appreciate everyone's suggestion and thanks for taking time to share the knowledge. You guys are awesome. – inspiringmyself Commented Aug 29, 2012 at 14:07
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3 Answers 3

Reset to default 5

First, you can do it without regex, by creating a dummy element to inject the HTML:

var s = "your_html_string";
var dummy = document.createElement("div");
dummy.innerHTML = s;
var title = dummy.getElementsByTagName("title")[0].innerText;

But if you really insist on using regex:

var s = "your_html_string";
var title = s.match(/<title>([^<]+)<\/title>/)[1];

Here's a DEMO illustrating both approaches.

The very basics of parsing html tags in regex is this. http://jsbin./oqivup/1/edit

var text = /<(title)>(.+)<\/\1>/.exec(html).pop();

But for more plicated stuff I would consider using a proper parser.

You could parse it using DOMParser():

var parser=new DOMParser(),
    doc=parser.parseFromString("<!DOCTYPE html><html><head><title>Data already exists</title></head></html>","text/html");

doc.title; /* "Data already exists" */

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