Links are found in nearly all web pages. Links allow users to click their way from page to page.

HTML Links - Hyperlinks

HTML links are hyperlinks.
You can click on a link and jump to another document.
When you move the mouse over a link, the mouse arrow will turn into a little hand.
Note: A link does not have to be text. It can be an image or any other HTML element.

HTML Links - Syntax

In HTML, links are defined with the <a> tag:
<a href="url">link text</a>

Problem: How to Auto Convert Plaintext URL (http://example.net) to hyperlinked URL (<a href="http://example.net/" rel="external nofollow noreferrer">example.net</a>) Using jQuery/JavaScript ?

Let's begun:
now iam using this codes (jQuery):
// Auto Hyperlinker
$('#feed').ready(function(){ //parent container
    // Get each div
    $('.content').each(function(){ //contents container
        // Get the content
        var str = $(this).html();
        // Set the regex string
        var regex = /(https?:\/\/([-\w\.]+)+(:\d+)?(\/([\w\/_\.]*(\?\S+)?)?)?)/ig
        // Replace plain text links by hyperlinks
        var replaced_text = str.replace(regex, "<a href='$1' target='_blank'>$1</a>");
        // Echo link
        $(this).html(replaced_text);
    });
});

Description:
('#feed') = is an ID parent of contents container
Example:
<div id="feed">
<div class="content">
</div></div>

('.content') = is an class container of your contents.
Example:
<div class="content">
<p>hello world. This is an example of my article</p>
...
..
</div>

This Demonstration:

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Or See this full codes on: JsFiddle