Sorry for the noob question.
var regex = ??
var a = '<span class="star" id="1.00"></span>';
var number = a.match(regex);
How can I get the 1.00 using regex?
Thanks for the help..
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2why dont you directly use the span tag and extract the id using javascriptaelor– aelor2014-06-12 06:56:34 +00:00Commented Jun 12, 2014 at 6:56
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4 Answers
Try this :
var regex = /id\="(\d+(\.\d+)?)"/i;
var a = '<span class="star" id="1.00"></span>';
var number = a.match(regex);
alert(number[1])
Comments
Forexample:
var regex = /[0-9\.]+/;
var a = '<span class="star" id="1.00"></span>';
var number = a.match(regex);
alert(number);
3 Comments
Royi Namir
this will match also <span class="star" bobo="1.00"></span>
anubhava
This will return
5 if input text is <span class="star5" id="1.00"></span>
pavel
@Royi Namir: Sure, it was only regex example for this case. If I use your
/id\="(\d+(\.\d+)?)"/i below, it takes eg. <div class=xy id="1.00">, etc. He has a string without bobo attribute, wioth no additional numbers.You can use:
var a = '<span class="star" id="1.00"></span>';
var m = a.match( /\bid=(["']?)([^"']+)\1/i );
var id;
if (m)
id = m[2]; // 1.00
Comments
IMHO using regex wont solve your problem, you should first craete an html element from the string and then get the id.
var s = '<span class="star" id="1.00"></span>';
var div = document.createElement('div');
div.innerHTML = s;
var element = div.firstChild;
console.log(element.getAttribute("id"))
output:
1.00
