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How to get string in path from split?

it didn't work on stackoverflow snippet but if you try on your local you will see it's going to work.
js give me a this result
cdn=//cdn.files.com/web
but I dont want to this line
cdn=
js must give me after from cdn= I mean result must be like this
//cdn.files.com/web
my all js is below so how to do that ?
var scripts = document.getElementsByTagName('script');
var index = scripts.length - 1;
var myScript = scripts[index];
// myScript now contains our script object
var queryString = myScript.src.replace(/^[^\=]+\??/,'');
alert(decodeURIComponent(queryString));
<script src="//domain.com/web/Assets/js/main.js?cdn=%2f%2fcdn.files.com%2fweb"></script>
<p></p>

var s = "cdn=//cdn.files.com/web";
s2 = s.substring(s.indexOf("cdn=")+4,s.length);
alert(s2);
this will substring from the index next to equals character to the end of yours string :)
fixed and tested

Split the string by '?cdn=' and get the part after that(second element in the result array, at index 1).
var queryString = myScript.src.split('?cdn=')[1];
FYI : If there is only one URL param then you can simply use = or cdn= for splitting.

You can use split:
yourvariable.split('=');
So whatever your arguments into GET, the odd param will get your desired result.
PS: Prefer just the = char, because you can work with whatever param you want into link gived by src.

why can't you use ^.+?cdn= in your regex?
this will give you strings after the cdn=
var myScript = '//domain.com/web/Assets/js/main.js?cdn=%2f%2fcdn.files.com%2fweb';
var queryString = myScript.replace(/^.+?cdn=/, '');
console.log(decodeURIComponent(queryString));

Solution with regex
var src = 'cdn=//cdn.files.com/web';
var url = src.replace(/^([^\=]+=)(.*)$/, '$2');
console.log(decodeURIComponent(url));
DEMO with explanation

Javascript Shortcode Parse

I need to parse following shortcode, for example my shortcode is :
[shortcode one=this two=is three=myshortcode]
I want to get this, is and myshortcode and add to array so it will :
['this', 'is', 'myshortcode']
NOTE : I know generally shortcode parameter marked with " and " ( ie [shortcode one="this" two="is" three="myshortcode"] ), but I need to parse shortcode above without ""
Any help really appreciated

I'm assuming you want to parse the first string with Regex and output the three elements in order to add them to an array later. That seems rather simple, or am I misunderstanding what you need? I'm assuming the word shortcodeis as it will be in your string. You'd probably need two regex operations if you haven't located and isolated the shortcode string yet that you posted above:
/\[shortcode((?: \S+=\S+)+)\]/
Replacement: "$1"
If you already have the code exactly as you posted it, then you can skip the regex above. At any rate, you'll have end with the following regex:
/ \S+=(\S+)(?:$| )/g
You can then add all the matches to your array.
If this is is not what you're looking for, then perhaps a more real example of your code would help.

Here you go I have built a perfectly scalable solution for you. The solution works for any number of parameters.
function myFunction() {
var str = "[shortcode one=this two=is three=myshortcode hello=sdfksj]";
var output = new Array();
var res = str.split("=");
for (i = 1; i < res.length; i++) {
var temp = res[i].split(" ");
if(i == res.length-1){
temp[0] = temp[0].substring(0,temp[0].length-1);
}
output.push(temp[0]);
}
document.getElementById("demo").innerHTML = output;
}
<button onclick="myFunction()">Try it</button>
<p id="demo"></p>

var str="[shortcode one=this two=is three=myshortcode]";
eval('var obj=' + str.replace(/shortcode /,"").replace(/=/g,"':'").replace(/\[/g,"{'").replace(/\]/g,"'}").replace(/ /g,"','"));
var a=[];
for(x in obj) a.push(obj[x]);
console.log(a);
You can try the above code.

Here's my solution: https://jsfiddle.net/t6rLv74u/
Firstly, remove the [shortcode and trailing ]
Next, split the result by space " "
After that, run through the array and remove anything that's on and before =, .*?=.
And now you have your result.

How to split a word for getting a specific value in Javascript or Jquery? [duplicate]

How do I get the last segment of a url? I have the following script which displays the full url of the anchor tag clicked:
$(".tag_name_goes_here").live('click', function(event)
{
event.preventDefault();
alert($(this).attr("href"));
});
If the url is
http://mywebsite/folder/file
how do I only get it to display the "file" part of the url in the alert box?

You can also use the lastIndexOf() function to locate the last occurrence of the / character in your URL, then the substring() function to return the substring starting from that location:
console.log(this.href.substring(this.href.lastIndexOf('/') + 1));
That way, you'll avoid creating an array containing all your URL segments, as split() does.

var parts = 'http://mywebsite/folder/file'.split('/');
var lastSegment = parts.pop() || parts.pop(); // handle potential trailing slash
console.log(lastSegment);

window.location.pathname.split("/").pop()

The other answers may work if the path is simple, consisting only of simple path elements. But when it contains query params as well, they break.
Better use URL object for this instead to get a more robust solution. It is a parsed interpretation of the present URL:
Input:
const href = 'https://stackoverflow.com/boo?q=foo&s=bar'
const segments = new URL(href).pathname.split('/');
const last = segments.pop() || segments.pop(); // Handle potential trailing slash
console.log(last);
Output: 'boo'
This works for all common browsers. Only our dying IE doesn't support that (and won't). For IE there is a polyfills available, though (if you care at all).

Just another solution with regex.
var href = location.href;
console.log(href.match(/([^\/]*)\/*$/)[1]);

Javascript has the function split associated to string object that can help you:
const url = "http://mywebsite/folder/file";
const array = url.split('/');
const lastsegment = array[array.length-1];

Shortest way how to get URL Last Segment with split(), filter() and pop()
function getLastUrlSegment(url) {
return new URL(url).pathname.split('/').filter(Boolean).pop();
}
console.log(getLastUrlSegment(window.location.href));
console.log(getLastUrlSegment('https://x.com/boo'));
console.log(getLastUrlSegment('https://x.com/boo/'));
console.log(getLastUrlSegment('https://x.com/boo?q=foo&s=bar=aaa'));
console.log(getLastUrlSegment('https://x.com/boo?q=foo#this'));
console.log(getLastUrlSegment('https://x.com/last segment with spaces'));
Works for me.

Or you could use a regular expression:
alert(href.replace(/.*\//, ''));

var urlChunks = 'mywebsite/folder/file'.split('/');
alert(urlChunks[urlChunks.length - 1]);

Returns the last segment, regardless of trailing slashes:
var val = 'http://mywebsite/folder/file//'.split('/').filter(Boolean).pop();
console.log(val);

I know, it is too late, but for others:
I highly recommended use PURL jquery plugin. Motivation for PURL is that url can be segmented by '#' too (example: angular.js links), i.e. url could looks like
http://test.com/#/about/us/
or
http://test.com/#sky=blue&grass=green
And with PURL you can easy decide (segment/fsegment) which segment you want to get.
For "classic" last segment you could write:
var url = $.url('http://test.com/dir/index.html?key=value');
var lastSegment = url.segment().pop(); // index.html

Get the Last Segment using RegEx
str.replace(/.*\/(\w+)\/?$/, '$1');
$1 means using the capturing group. using in RegEx (\w+) create the first group then the whole string replace with the capture group.
let str = 'http://mywebsite/folder/file';
let lastSegment = str.replace(/.*\/(\w+)\/?$/, '$1');
console.log(lastSegment);

Also,
var url = $(this).attr("href");
var part = url.substring(url.lastIndexOf('/') + 1);

Building on Frédéric's answer using only javascript:
var url = document.URL
window.alert(url.substr(url.lastIndexOf('/') + 1));

If you aren't worried about generating the extra elements using the split then filter could handle the issue you mention of the trailing slash (Assuming you have browser support for filter).
url.split('/').filter(function (s) { return !!s }).pop()

window.alert(this.pathname.substr(this.pathname.lastIndexOf('/') + 1));
Use the native pathname property because it's simplest and has already been parsed and resolved by the browser. $(this).attr("href") can return values like ../.. which would not give you the correct result.
If you need to keep the search and hash (e.g. foo?bar#baz from http://quux.com/path/to/foo?bar#baz) use this:
window.alert(this.pathname.substr(this.pathname.lastIndexOf('/') + 1) + this.search + this.hash);

To get the last segment of your current window:
window.location.href.substr(window.location.href.lastIndexOf('/') +1)

you can first remove if there is / at the end and then get last part of url
let locationLastPart = window.location.pathname
if (locationLastPart.substring(locationLastPart.length-1) == "/") {
locationLastPart = locationLastPart.substring(0, locationLastPart.length-1);
}
locationLastPart = locationLastPart.substr(locationLastPart.lastIndexOf('/') + 1);

var pathname = window.location.pathname; // Returns path only
var url = window.location.href; // Returns full URL
Copied from this answer

// Store original location in loc like: http://test.com/one/ (ending slash)
var loc = location.href;
// If the last char is a slash trim it, otherwise return the original loc
loc = loc.lastIndexOf('/') == (loc.length -1) ? loc.substring(0,loc.length-1) : loc.substring(0,loc.lastIndexOf('/'));
var targetValue = loc.substring(loc.lastIndexOf('/') + 1);
targetValue = one
If your url looks like:
http://test.com/one/
or
http://test.com/one
or
http://test.com/one/index.htm
Then loc ends up looking like:
http://test.com/one
Now, since you want the last item, run the next step to load the value (targetValue) you originally wanted.
var targetValue = loc.substr(loc.lastIndexOf('/') + 1);
// Store original location in loc like: http://test.com/one/ (ending slash)
let loc = "http://test.com/one/index.htm";
console.log("starting loc value = " + loc);
// If the last char is a slash trim it, otherwise return the original loc
loc = loc.lastIndexOf('/') == (loc.length -1) ? loc.substring(0,loc.length-1) : loc.substring(0,loc.lastIndexOf('/'));
let targetValue = loc.substring(loc.lastIndexOf('/') + 1);
console.log("targetValue = " + targetValue);
console.log("loc = " + loc);

Updated raddevus answer :
var loc = window.location.href;
loc = loc.lastIndexOf('/') == loc.length - 1 ? loc.substr(0, loc.length - 1) : loc.substr(0, loc.length + 1);
var targetValue = loc.substr(loc.lastIndexOf('/') + 1);
Prints last path of url as string :
test.com/path-name = path-name
test.com/path-name/ = path-name

I am using regex and split:
var last_path = location.href.match(/./(.[\w])/)[1].split("#")[0].split("?")[0]
In the end it will ignore # ? & / ending urls, which happens a lot. Example:
https://cardsrealm.com/profile/cardsRealm -> Returns cardsRealm
https://cardsrealm.com/profile/cardsRealm#hello -> Returns cardsRealm
https://cardsrealm.com/profile/cardsRealm?hello -> Returns cardsRealm
https://cardsrealm.com/profile/cardsRealm/ -> Returns cardsRealm

I don't really know if regex is the right way to solve this issue as it can really affect efficiency of your code, but the below regex will help you fetch the last segment and it will still give you the last segment even if the URL is followed by an empty /. The regex that I came up with is:
[^\/]+[\/]?$

I know it is old but if you want to get this from an URL you could simply use:
document.location.pathname.substring(document.location.pathname.lastIndexOf('/.') + 1);
document.location.pathname gets the pathname from the current URL.
lastIndexOf get the index of the last occurrence of the following Regex, in our case is /.. The dot means any character, thus, it will not count if the / is the last character on the URL.
substring will cut the string between two indexes.

if the url is http://localhost/madukaonline/shop.php?shop=79
console.log(location.search); will bring ?shop=79
so the simplest way is to use location.search
you can lookup for more info here
and here

You can do this with simple paths (w/0) querystrings etc.
Granted probably overly complex and probably not performant, but I wanted to use reduce for the fun of it.
"/foo/bar/"
.split(path.sep)
.filter(x => x !== "")
.reduce((_, part, i, arr) => {
if (i == arr.length - 1) return part;
}, "");
Split the string on path separators.
Filter out empty string path parts (this could happen with trailing slash in path).
Reduce the array of path parts to the last one.

Adding up to the great Sebastian Barth answer.
if href is a variable that you are parsing, new URL will throw a TypeError so to be in the safe side you should try - catch
try{
const segments = new URL(href).pathname.split('/');
const last = segments.pop() || segments.pop(); // Handle potential trailing slash
console.log(last);
}catch (error){
//Uups, href wasn't a valid URL (empty string or malformed URL)
console.log('TypeError ->',error);
}

I believe it's safer to remove the tail slash('/') before doing substring. Because I got an empty string in my scenario.
window.alert((window.location.pathname).replace(/\/$/, "").substr((window.location.pathname.replace(/\/$/, "")).lastIndexOf('/') + 1));

Bestway to get URL Last Segment Remove (-) and (/) also
jQuery(document).ready(function(){
var path = window.location.pathname;
var parts = path.split('/');
var lastSegment = parts.pop() || parts.pop(); // handle potential trailing slash
lastSegment = lastSegment.replace('-',' ').replace('-',' ');
jQuery('.archive .filters').before('<div class="product_heading"><h3>Best '+lastSegment+' Deals </h3></div>');
});

A way to avoid query params
const urlString = "https://stackoverflow.com/last-segment?param=123"
const url = new URL(urlString);
url.search = '';
const lastSegment = url.pathname.split('/').pop();
console.log(lastSegment)

How to use split in javascript

I have a string like
/abc/def/hij/lmn.o // just a raw string for example dont know what would be the content
I want only /abc/def/hij part of string how do I do that.
I tried using .split() but did not get any solution.

If you want to remove the particular string /lmn.o, you can use replace function, like this
console.log(data.replace("/lmn.o", ""));
# /abc/def/hij
If you want to remove the last part after the /, you can do this
console.log("/" + data.split("/").slice(1, -1).join("/"));
# /abc/def/hij

you can do
var str = "/abc/def/hij/lmn.o";
var dirname = str.replace(/\/[^/]+$/, "");
Alternatively:
var dirname = str.split("/").slice(0, -1).join("/");
See the benchmarks

Using javascript
var x = '/abc/def/hij/lmn.o';
var y = x.substring(0,x.lastIndexOf("/"));
console.log(y);

var s= "/abc/def/hij/lmn.o"
var arr= s.split("/");
after this, use
arr.pop();
to remove the last content of the array which would be lmn.o, after which you can use
var new_s= arr.join("/");
to get /abc/def/hij

How to remove string from string until a specefic character using jquery

I want to remove the last parameter in the href of a specific tag using jquery
for example replace href="app/controller/action/05/04/2014"
by href="app/controller/action/05/04"

Try using the String.lastIndexOf() and String.substring() in this context to achieve what you want,
var xText ="app/controller/action/05/04/2014";
xText = xText.substring(0,xText.lastIndexOf('/'));
DEMO

if you know which value you need to change ,than you can use replace:
var str = "app/controller/action/05/04/2014";
var res = str.replace("2014","04");
or else you can use array and change / update last value in array:
var str = "app/controller/action/05/04/2014";
var res = str.split("/");

We can use a regular expression replace which will be the fastest, compared to substring/slice.
var hreftxt ="app/controller/action/05/04/2014";
hreftxt = hreftxt.replace(/\/[^\/]*$/,"");