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How to Get # Url Value With Javascript?

2 minutes read

To get the URL value with JavaScript, you can access the current URL using the window.location.href property. This will return the full URL of the current page. Alternatively, you can get specific parts of the URL such as the hostname, pathname, search parameters, or hash by accessing the corresponding properties of the window.location object. For example, window.location.hostname will give you the hostname of the current URL. By using these properties, you can easily retrieve and manipulate the URL values in JavaScript.


What is the correct way to get the origin of the URL in JavaScript?

To get the origin of the URL in JavaScript, you can use the window.location.origin property. Here is an example:

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console.log(window.location.origin);


This will return the origin of the current URL, which includes the protocol, hostname, and port number.


How to extract specific parameters from the URL query string with JavaScript?

You can use the following JavaScript function to extract specific parameters from the URL query string:

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function getQueryParam(name) {
    name = name.replace(/[\[]/, '\\[').replace(/[\]]/, '\\]');
    var regex = new RegExp('[\\?&]' + name + '=([^&#]*)');
    var results = regex.exec(location.search);
    return results === null ? '' : decodeURIComponent(results[1].replace(/\+/g, ' '));
}


Here's an example of how you can use this function to extract a parameter called "id" from the URL query string:

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var id = getQueryParam('id');
console.log(id);


This function will search for the specified parameter name in the URL query string and return its value. If the parameter is not found, it will return an empty string.


What is the difference between getting the URL value and the domain in JavaScript?

In JavaScript, getting the URL value refers to fetching the complete URL of the current webpage, including the protocol, domain, port, path, and query parameters. This can be done using the window.location.href property.


On the other hand, getting the domain refers specifically to extracting and isolating the domain portion of the URL. This typically involves parsing the URL and extracting the hostname or domain name without the protocol, port, path, or query parameters. This can be accomplished by using the window.location.hostname property.


Overall, the main difference between getting the URL value and the domain in JavaScript is that the former includes the entire URL while the latter focuses specifically on extracting and identifying the domain portion of the URL.


How can I obtain the protocol of the URL using JavaScript?

You can obtain the protocol of a URL in JavaScript by using the URL object. Here's an example:

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let url = new URL('https://www.example.com');
let protocol = url.protocol;
console.log(protocol); // Output: "https:"


You can replace https://www.example.com with the URL you want to get the protocol from. The protocol property of the URL object will return the protocol (such as http: or https:) of the URL as a string.

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