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How to check if string contains url anywhere in string using javascript and convert it to anchor tag

I have a textarea in which I am getting user's input data. But I need to know if there is any URL in textarea and convert it to anchor tag. For example:
Textarea Data:
Hi I'm Abdul. My Website is https://website.com
After Anchor Tag:
Hi I'm Abdul. My Website is https://website.com
Currently my code is:
var status = $('#status').val();
var urlCheck = new RegExp("([a-zA-Z0-9]+://)?([a-zA-Z0-9_]+:[a-zA-Z0-9_]+#)?([a-zA-Z0-9.-]+\\.[A-Za-z]{2,4})(:[0-9]+)?(/.*)?");
if(urlCheck.test(status)) {
alert("url inside");
console.log(urlCheck.exec(status)[0]);
}
This is my current code but I don't know how to replace url with anchor tag in that string.

I am not sure if i understand you correctly, but do you want to have it changed live or after the form was sent? If the latter, i would try something like this:
var urlCheck = new RegExp("([a-zA-Z0-9]+://)?([a-zA-Z0-9_]+:[a-zA-Z0-9_]+#)?([a-zA-Z0-9.-]+\\.[A-Za-z]{2,4})(:[0-9]+)?(/.*)?");
if(urlCheck.test(status)) {
alert("url inside");
console.log(urlCheck.exec(status)[0]);
// Here my possible solution (not tried out)
$('#status').val('<a href="http://'+urlCheck.exec(status)[0]+"' target='_blank'>the link</a>");
}
But this would also mean that you could/must check with a RegEX if the user entered http or not.

var status = $('#status').text();
var urlCheck = new RegExp("([a-zA-Z0-9]+://)?([a-zA-Z0-9_]+:[a-zA-Z0-9_]+#)?([a-zA-Z0-9.-]+\\.[A-Za-z]{2,4})(:[0-9]+)?(/.*)?");
if(urlCheck.test(status)) {
alert("It has an URL!");
console.log(urlCheck.exec(status)[0]);
}
document.getElementById("status").innerHTML = status.replace(urlCheck.exec(status)[0],"<a href='"+urlCheck.exec(status)[0]+"'>"+urlCheck.exec(status)[0]+"</a>");
<div id="status">Hi I'm Abdul. My Website is https://website.com</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
We can use the html.replace() to replace the url inside the tags we wanted.

You have to use the JS replace() function.
I set the following example with an input textarea and an output textarea for let you see the difference.
function addUrl() {
var status = $('#status').val();
var urlCheck = /(([a-zA-Z0-9]+:\/\/)?([a-zA-Z0-9_]+:[a-zA-Z0-9_]+#)?([a-zA-Z0-9.-]+\.[A-Za-z]{2,4})(:[0-9]+)?(\/.*)?)/;
$('#output').val(status.replace(urlCheck, '$1'));
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<label for="status">Input</label>
<textarea id="status" onChange="addUrl()"></textarea>
<br/>
<label for="output">Output</label>
<textarea id="output"></textarea>

use linkifyHtml or linkifyString : Linkify String Interface. Use linkify-string to replace links in plain-text strings with anchor tags.

Identifying if code between code tags is JavaScript or HTML

I am trying to match block of code to check if is html or javascript code, i tried doing this but am having problem while when have this html element "<div></div>" or php <? echo '';> inside javascript code it will match it as html element.
Please can someone help me with best way to archive this?
<script>
$(document).ready(function(){
function AssignLang(theLanguage){
var regex = /(<([^>]+)>|<([^>]+)>)/ig;
//var regex = "<(\"[^\"]*\"|'[^']*'|[^'\">])*>";
if(theLanguage.match(regex)){
var lang = 'markup';
}else{
var lang = 'javascript';
}
return lang;
}
$('pre code').each(function () {
var the = $(this).html();
/*I tried here to match from 0 to 50 but is not going to help because if the javascript tag begin with <script> still show as html
var theLanguage = the.replace(/\s/g, '').substring(0,50);
*/
var theLanguage = the.replace(/\s/g, '');
var langType = AssignLang(theLanguage);
$(this).addClass("fullcoded language-"+langType);
alert(theLanguage+"-"+langType);
});
});
</script>
Here am matching code inside pre and code element
<pre><code>
function check() {
var delvar = "<? $_POST["del"]; ?>";
var answer = confirm("Are you sure you want to delete the article?")
if (answer) {
window.location = "adm-site.php?del=" + delvar + "&delete=true";
}
}
</code></pre>
<pre><code>
<select name="del">
<option value="none" SELECTED></option>all articles echo'ed here by php
</select>
</code></pre>
Here is a link to https://jsfiddle.net/ppu9qw3n/

This is the regex I'm using /\w+\s\w+\(\)/i
\w+ matches 1 or more a-z, A-Z, 0-9 and _
\s matches 1 space
\( and \) matches ()
Basically I'm searching for a pattern consisting of function functionName() in the code between code tags. If a match is found then it's JavasScript code or else it's HTML code.
This is how you can implement the JavaScript:
$(document).ready(function(){
var regex = /\w+\s\w+\(\)/i;
$('pre code').each(function () {
var v = $(this).html();
if(regex.test(v)){
alert(v+'-'+'THIS IS JAVASCRIPT CODE')
}
else{
alert(v+'-'+'THIS IS HTML CODE')
}
});
});
Check it here on jsfiddle. It's working.
https://jsfiddle.net/swzaf5r1/

Extract email addresses from a text file using JavaScript

I have more than 2000 email addresses. which i have exported from feedburner.
And the email address look like below;
adminvicky#gmail.com Active 12/05/2015 03:07
adminvishal250#gmail.com Pending Verification 8/05/2015 01:07
I want to extract email address from the text file by removing Active, Pending Verification, Date [i.e. 8/05/2015] and time [i.e 03:07] using JavaScript.
I have created a JavaScript Program which something like below which working properly for removing Active, Pending verification text,
<script>
function extracter() {
var a = document.getElementById('input').value;
document.getElementById('output').innerHTML =
a.replace(/Active|Pending|Verification| /g, '');
}
</script>
<textarea id="input"></textarea><br/>
<br/>
<input type="button" value="click" onclick="extracter()"/>
<br/>
<br/>
<textarea id="output"></textarea>
And the output is,
adminvicky#gmail.com 12/05/2015 03:07
adminvishal250#gmail.com 8/05/2015 01:07
And I want the below output. Just help me to remove "Date" and "Time",
adminvicky#gmail.com
adminvishal250#gmail.com

Try this one, i think it will do the job
var a = document.getElementById('input').value;
document.getElementById('output').innerHTML = extractEmails(a).join('\n');
And the function:
function extractEmails (text)
{
return text.match(/([a-zA-Z0-9._-]+#[a-zA-Z0-9._-]+\.[a-zA-Z0-9._-]+)/gi);
}
Here is a fiddle
Here is also an example using jQuery also Extract all email addresses from bulk text using jquery

Try to use this regex:
([a-zA-Z0-9._-]+#[a-zA-Z0-9._-]+\.[a-zA-Z0-9._-]+)
REGEX DEMO
In your Javascript you can implement it like this:
function getMail ( text ){
return text.match(/([a-zA-Z0-9._-]+#[a-zA-Z0-9._-]+\.[a-zA-Z0-9._-]+)/gi);
}
JSFIDDLE DEMO

you can easily write a regex and iterate over the results like:
var reg = new RegExp(/^[\w-\.]+#([\w-]+\.)+[\w-]{2,4}$/g);
var email;
while((email = reg.exec(targetText)) !== null) {
// do something with the email
}

Let's try with this simple regular expression:
var record = ' adminvicky#gmail.com Active 12/05/2015 03:07';
var regExp = /^\s*(.*?)\s+/;
console.log(record.match(regExp)[1]);

You can try this regex instead:
a.replace(/\s+.+$/g, '')
This should work for your case.

I would use string.split(" ") and split the textfile at its spaces.
Example:
var string = " adminvicky#gmail.com Active 12/05/2015 03:07 adminvishal250#gmail.com Pending Verification 8/05/2015 01:07"
var array = string.split(" ");
var emails = [];
for(var i = 0; i < array.length; i++){
if(array[i].indexOf("#") != -1){
emails.push(array[i]);
}
};
Then you have an array emails which contains your email adresses.

Using JQuery load function to read content from .txt file and display email as hyperlink:
$(document).ready(function(){
//Get the text content from txt file using load function
$( "#divid" ).load( "/xyz.txt",function(response, status, xhr){
if(status=='success') {
/* After loading the static text, modifying the email address to hyper link */
var corrected = response;
var emailRegex =/[a-zA-Z0-9._-]+#[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}/g;
corrected.match(emailRegex).forEach(function(email) {
console.log(email);
corrected = corrected.replace ( email, '' + email + '' );
});
$('#divid').html(corrected);
}
});
});

How to strip specific tag into div in Javascript?

I have this html code
<div class="myDiv">
My link
<p>This is a paragraph</p>
<script>//This is a script</script>
</div>
And I this javascript:
$('.myDiv').children().each(
function() {
var strToStrip = $('.myDiv').html();
if ( this.tagName != 'A' ) {
// Strip tag element if tagName is not 'A'
// and replace < or > with < or >
strToStrip.replace(/(<([^>]+)>)(?!(a))/ig, "");
}
}
);
How can I strip all tags, except from the a element?
I only need the link and strip tags if it is not a link tag.
I can't find what wrong with this code and what regex can I use to do this.
Any help please?

Try this regex example:
var strToStrip = $('.myDiv').html();
var temp = strToStrip.replace(/<[^a\/][a-z]*>/g, "<");
var result = temp.replace(/<\/[^a][a-z]*>/g, ">");
alert(result);

My goal of this question is to figure out how twitter do his hashtag or usergroup by using # or #. Go here to see the final result

you can use replace method of string using regular expr
var html = $("#main").html();
var result = html.replace(/[\<\>\/]/g,'');
alert(result);
the example shown here

Regexp JS from referrer

I need to check if a referrer has word "profile" i need to put profile/(.*?) in a var. How can I do it in js?
<script type="text/javascript">
var ref = document.referrer;
if( ~ref.indexOf("profile") ) {
alert('coincidence found!');
}
</script>

<script>
var str="Is this all there is?";
var patt1=/[^a-h]/g;
document.write(str.match(patt1));
</script>
Result :I,s, ,t,i,s, ,l,l, ,t,r, ,i,s,?
check link The [^abc] expression is used to find any character not between the brackets.
and this tooo link

var ref = document.referrer;
ref.match(/(?:profile).+/,(match)=> {
console.log(match)
})