We Keep Coding

Getting query string from re written URL

I have url "SampleProject/profile/aA12". How can I get the value of the id from my rewritten URL using javascript? I want to get the "aA12" value.
Im using htaccess rewrite to rewrite my URL. Im new in rewritting url's. Any help will be appreciated. More powers and thank you.

You can use regex.
Try
'SampleProject/profile/aA12'.match(/\SampleProject\/profile\/(\w+)/)
'SampleProject/profile/aA12/xxx'.match(/\SampleProject\/profile\/(\w+)/)
'aA12' will be matched in both cases.

There are going to be quite a few ways to achieve your goal with JavaScript. A simple solution could be something like this:
let myURL = "SampleProject/profile/aA12";
let result = myURL.split('/').pop();
// returns "aA12"
The .split('/') method is dividing your string up into an array using the / character, and .pop() is simply returning the last element of that array.
Hope this helps! If you were looking for more advanced matching, i.e. if you wanted to ignore a potential query string on the end of the URL parameter, you could use regular expressions.

Their is a many way that you can use to achieve the desired method i made you a code pen in this link
var url = "SampleProject/profile/aA12";
let res = url.split('/').pop();
console.log(res)
https://codepen.io/anon/pen/KQxNja

Only get the numbers out of an URL

I only want to have the numbers of my URL as return. At the moment I use:
alert(document.URL);
to get the whole URL. But is there any other easy solution to get only the ID-Numbers from my URL as result? I also use jQuery and PHP in this project.

var numbers = document.URL.match(/\d+/g) will return all numbers in a URL (eg for this thread) document.URL.match(/\d+/g) => ["19570840"]

alert(document.URL.match(/\d+/g));
Simple. I would put it in a fiddle, but uhh, jsFiddle doesn't have any numbers in their url, so.

How to get the parts of a url using document.referrer?

I need to use document.referrer to get the previous URL I also need to be able to get the parts of the URL like:
window.location.protocol
window.location.host
window.location.pathname
but I can't figure out how to do it with document.referrer. Anyone got any ideas?

You can create an a element with the referrer as its url.
a elements (with hrefs) can act like location objects
var a=document.createElement('a');
a.href=document.referrer;
alert([a.protocol,a.host,a.pathname].join('\n'));
a='';

There's no equivalent to window.location with regards to document.referrer so your only option will be to break down the string itself. You could write a regex to do that or rely on a series of string splits:
var parts = document.referrer.split('://')[1].split('/');
var protocol = document.referrer.split('://')[0];
var host = parts[0];
var pathName = parts.slice(1).join('/');

If you want the convenience and can afford the weight, have a look at URI.js or one of the suggested URL parsers. If you don't need anything fancy, <a>s href decomposition will do the job just fine.

Javascript & HTML Getting the Current URL

Can anyone help me. I don't use Client-side Javascript often with HTML.
I would like to grab the current url (but only a specific directory) and place the results between a link.
So if the url is /fare/pass/index.html
I want the HTML to be pass

This is a quick and dirty way to do that:
//splits the document.location.href property into an array
var loc_array=document.location.href.split('/');
//have firebug? try a console.log(loc_array);
//this selects the next-to-last member of the array.
var directory=loc[loc.length-2]

url = window.location.href // Not particularly necessary, but may help your readability
url.match('/fare/(.*)/index.html')[1] // would return "pass"

There may be an easier answer, but the simplest thing I can think of is just to get the current URL with window.location and use some type of parsing to get which directory you are looking for.
Then, you can dynamically append the HTML to your page.

This may get you started:
var linkElement = document.getElementById("whatever");
linkElement.innerHTML = document.URL.replace(/^(?:https?:\/\/.*?)?\/.*?\/(.*?)\/.*?$/i,"$1");

How to Extract the Current URL and ID in jQuery?

How would I go about getting the current URL using jquery, or more specifically, getting an ID on the end of it?
For example, I have product.php#tab-2. What I want to get from it is just the '#tab-2' part.
I have tried 'window.location.pathname' but that will only return '/product.php'
Thanks

You don't need jQuery for this:
alert(window.location.href); // will give you the full url
alert(window.location.hash); // will give you the hash (#) value
See the Mozilla docs at window.location - MDC.

You want window.location.hash

Use jqUrl plugin (http://www.oakcitygraphics.com/jquery/jqURL/jqURLdemo.html) to retrieve the full current url, then strip the window.location.pathname part.
Thomas

To actually assign to a variable, use the following;
var url = window.location.href;
var id = url.substring(url.lastIndexOf('#') + 1);
Note that if your url is in this format /product.php/3 , then you can use the above code, just change the character is the lastIndexOf function.