My requirement is to have URLs in the following format:
/user/username
However, end users have the ability to append additional get parameters as they desire, such as:
/user/username?foo=bar
Given this scenario, when working with AngularJS, what would be the optimal method to extract only the username portion (which comes after /user/) excluding any other content that follows?
For optimal results, it is recommended to utilize the $location service along with its .path() functionality, followed by employing a standard split() and relevant indexing.
While there may not be a specific function dedicated to this task, extracting the URL from a string using a query is relatively straightforward. Simply use $location.path() to capture the path, and then implement one of these methods to achieve the desired outcome.
url.substring(6, (url.indexOf('?') != -1 ? url.indexOf('?') : url.length))
url.split('/')[2].split('?')[0]
If you are interested in a similar topic, check out this question: Is there a built-in way to get the current URL without any query parameters?
To retrieve the username from a URL, you can utilize either window.location or the $location service to extract the path. Once you have obtained the path, you can then use the split method as demonstrated below:
var url = "/user/username?foo=bar";
var parts = url.split('/user/');
var userName = parts[1].split('?');
console.log(userName[0]);
By performing multiple splits on your URL, you will be able to successfully locate the username. I hope this solution meets your requirements.
If you want to extract the last section of a URL without including any query parameters, using a regular expression is another approach.
This particular regex pattern will do the trick: /\/([^\/?]+)\?/
Your function implementation will resemble the following code snippet:
function getLastUrlSegment(url) {
const regex = /\/([^\/?]+)\?/;
const result = url.match(regex);
return result ? result[1] : null;
}
Explanation:
The regex captures patterns like /something-here?
The match method returns an array with two elements
Element 0 - Represents the entire matched string, such as: /example-url?
Element 1 - Refers to the matched group within the first element, which will be:
example-url
Therefore, you only need to retrieve the second element (index 1) from the result array.
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