Question

I need to count a group of regular expressions in a dynamically loaded <div> that I’ve loaded using the load() function. I also need to resize this <div> to the longest line of characters in it. Is there a way to achieve this? I’ve tried searching around and can’t find anything, not even on SO. I should mention that the expression I am testing for is:

Sat Mar 12 12:45:38 PST 2011

Using this regex:

if ($('#result').text().match(/[A-Za-z]{3}\s[A-Za-z]{3}\s[0-9]{1,2}\s[0-9]{2}:[0-9]{2}:[0-9]{2}\s[A-Z]{3}\s[0-9]{4}/))

Answer 1

var str="The rain in SPAIN stays mainly in the plain"; 
var patt1=/ain/gi;  //noticed the g.  g will enable match of all occurance, and without it it'll only match the first occurance
console.log(str.match(patt1).length);  //4 matched

JavaScript match regex function returns an array so you can basically do a length on that array and get the size of the matched elements. Make sure you are using the g in RegEx to search all occurance

Based on your RegEx you can do the following:

$('#result').text().match(/[A-Za-z]{3}\s[A-Za-z]{3}\s[0-9]{1,2}\s[0-9]{2}:[0-9]{2}:[0-9]{2}\s[A-Z]{3}\s[0-9]{4}/g).length //this should give you the total count of occurance