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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.

How to extract content of html tags from a string using javascript or angularjs?

I have a string containing content in some html tags and also some text alone.
It looks like this :
var str = "<p></p><p><i>blabla</i></p><p><i><b>blaaaaaablaaaaa</b></i></p><iframe src="..." height="111" width="333"></iframe><p></p><p><sub>hello blabla</sub></p><p><br></p><iframe src="..." height="444" width="888"></iframe>"
I would like to extract somehow in Javascript or AngularJS only some tag (including content and attributes) then put them into an array.
For example, if I want only <iframe> tag, I should have this :
var array = ["<iframe src='...' height='111' width='333'></iframe>", "<iframe src='...' height='444' width='888'></iframe>"];
If I want <p> tag then :
var array = ["", "<i>blabla</i>","<i><b>blaaaaaablaaaaa</b></i>","","<sub>hello blabla</sub>","<br>"];
Any suggestion ? Thanks !
NOTE : Don't give an answer using Jquery please !

You could create an angular element and get the text out of it.
Example:
$scope.array =[];
$scope.eles=
angular.element(str).find('iframe');
[].forEach.call($scope.eles, function (ctl) {
$scope.name.push(angular.element(ctl).text())
});
here is a demo: http://jsfiddle.net/Lvc0u55v/5122/
Edit
To get all the html of the tag you can do:
angular.element(str).find('iframe');
[].forEach.call($scope.eles, function (ctl) {
$scope.name.push(ctl.outerHTML)
});
demo: http://jsfiddle.net/Lvc0u55v/5123/

try this code:
var iFrameArr= str.match("<iframe>(.*)<iframe>");
var iFrameContent = iFrameArr[1];

You will want to look at splitting up the string with regex using a filter such as '(<iframe>).*(<\/iframe>)'. This will find the tags of and as well as everything in between, putting it into a capture group per iteration found.

Set the html content to the DOM and extract the iframe tag using jquery
Assuming you have a div with id='test' in your DOM
var str = "<div> .... </div> <iframe src=".....">..</iframe>
text blabla
<iframe src="....."> ....blabla2.... </iframe>
....
<p>.....</p>
......";
$('#test').html(str);
var ar=[]
$('#test iframe').each(function() {
var x = $(this).wrap('<p/>').parent().html();//wrap the iframe with element p and get the html of the parent
ar.push(x)//add the html content to array
});
//now ar contains the expected output

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

Escape characters in String in a HTML page?

I have a string in the below non-escaped format in a HTML page:
<a href="http://somesite/product?page=blahk&id=EA393216&tabs=7,0&selections=quarter:Q2+2013^&wicket:pageMapName=wicket-2\">SomeThing</a>
What I need is to use jQuery/JavaScript to replace that string with just the link "SomeThing".
I have looked at some examples in StackOverflow, but they don't seem to work. I'm just getting started with jQuery and JavaScript, so would appreciate any help here.
Any ideas?

Try html() and text() in jquery to decode:
var str = '<a href="http://somesite/product?page=blahk&id=EA393216&tabs=7,0&selections=quarter:Q2+2013^&wicket:pageMapName=wicket-2\">SomeThing</a>';
var decoded = $('<div />').html(str).text();
alert($(decoded).text());
See Fiddle demo

var str = '<a href="http://somesite/product?page=blahk&id=EA393216&tabs=7,0&selections=quarter:Q2+2013^&wicket:pageMapName=wicket-2\">SomeThing</a>';
var helper = document.createElement('p');
// evaluate as HTML once, text now "<a href..."
helper.innerHtml = str;
// evaluate as HTML again, helper now has child element a
helper.innerHtml = helper.innerText;
// get text content only ("SomeThing")
alert(helper.innerText);

Here is a possible starting point.
Hope this gets you started!
function parseString(){
var str = '<a href="http://somesite/product?page=blahk&id=EA393216&tabs=7,0&selections=quarter:Q2+2013^&wicket:pageMapName=wicket-2\">SomeThing</a>';
var begin = str.indexOf('\">',0)+2; //--determine where the opening anchor tag ends
var end = str.indexOf('</a>',0); //--determine where the closing anchor tag begins
var parsedString = str.substring(begin,end); //--grab whats in between;
/*//--or all inline
var parsedString = str.substring(str.indexOf('\">',0)+2,str.indexOf('</a>',0));
*/
console.log(parsedString);
}
parseStr();

jQuery / JavaScript - string replace

Assuming we have a comment textarea where the user can enter this code:
[quote="comment-1"]
How can I replace that code before the form submits with the actual html content from <div id="comment-1"> ?

You could try something like this:
http://jsfiddle.net/5sYFT/1/
var text = $('textarea').val();
text = text.replace(/\[quote="comment-(\d+)"\]/g, function(str,p1) { return $('#comment-' + p1).text(); });
$('textarea').val(text);
It should match agains any numbered quote in the format you gave.

You can use regular expressions:
text = text.replace(/\[quote="([a-z0-9-]+)"]/gi,
function(s, id) { return $('#' + id).text(); }
);

If I understand you correctly, you wish to replace something like '[quote="comment-1"]' with ''.
In JavaScript:
// Where textarea is the reference to the textarea, as returned by document.getElementById
var text = textarea.value;
text = text.replace(/\[quote\="(comment\-1)"\]/g, '<div id="$1">');
In jQuery:
// Where textarea is the reference to the textarea, as returned by $()
var text = textarea.val();
text = text.replace(/\[quote\="(comment\-1)"\]/, '<div id="$1">');
Hope this helps!