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How to Extract Sub string between two string pattern using Javascript/JQuery

Anonymous User 2249 20-Jan-2015

I am new to regular expression. I need to extract between two string pattern ([[tag:: & ]]) and for each occurrence.

For Example:

If the text is :

Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus [[tag::4797897]] mus. Donec quam felis, ultricies nec, pellentesque eu, pretium quis, sem. Nulla consequat massa quis enim. Donec pede justo, fringilla vel, aliquet nec, vulputate eget, arcu.

[[tag::4797800]] [[tag::4797769]]

As I want the extract text between [[tag:: and ]] , the expected output should be 4797897 , 4797800 and 4797769

I am using Javascript and JQuery

Can some please help me . Thanks in advance

javascript jquery  regex 
Updated on 20-Jan-2015
Anonymous User

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1 Answers

Royce Roy

Royce Roy

20-Jan-2015

To achieve the desired results you can use the exec() method in a loop, pushing the match result of the capturing group to the results array.

var str = ' ... '
var re  = /\[\[tag::([^\]]+)]]/g,
matches = [];
 
while (m = re.exec(str)) {
  matches.push(m[1]);
}
 
console.log(matches) //=> [ '4797897', '4797800',
'4797769' ]

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