How to check if a URL contains a hash using JavaScript?

Overview

Use JavaScript to check if the Uniform Resource Locator (U.R.L.) contains a hash value (#text), as JavaScript includes some pre-built methods that make getting a specific target a simple task. This can be done by using the hash property in JavaScript, which can be accessed by initializing the window.location object. It simplifies the user interface and provides all-important web navigation.

To build this solution we need prior knowledge of the following topics -

• HTML- Builds the skeleton of the page. Where we will use the internal 7239f9c7b7d151b366b41e07a1e7636c tag.

• HTML events (onclick(), onchange(), etc.)

• JavaScript window object, position object, hash attribute.

grammar

The basic syntax used by this program is -

window.location.hash

• Window- This is a JavaScript object that specifies the web browser frame. It handles methods specific to your browser. The properties of windows can be accessed through

grammar:

(window.property/methodName)

• Location- It is a property of the window object that contains information about the current web page URL.

grammar:

window.location.propertyName

• Hash- It is a property of the position object containing the text after #. If the URL contains "/tutorialspoint/#java". Then location.hash will return the value "java".

algorithm

• Step 1- Create an HTML buttonusing thebb9345e55eb71822850ff156dfde57c8

  tag

• Step 2- Insert theonclickevent in the button label3b0c972ff6cb77ed3535e06ec1321ba5and insert the function in it , such as4626f3e1ab2a856a463d5a673373b42e. Function names are user-defined so you can change them as per your convenience.

• Step 3- Create JavaScript arrow functioncheckHash().

• Step 4- Use thewindowobject methodlocationand the location methodhash. Store the result of window.location.hash in a variable.

• Step 5- Pass variables as conditions in if-else.

• Step 6- If the variable passed in if-else is true, return "Hash found", otherwise if the variable passed is false, return "Hash not found" .

Example

In the given code, it contains an HTML button which contains "onclick()" event handler which gives JavaScript user defined function "checkHash()". When bb9345e55eb71822850ff156dfde57c8 is clicked, the checkHash() function is triggered.

     
  
  OUTPUT HASH-   // Output will be shown here 
 Check URL Hash
 add hash(#) to url
     

After clicking on the anchor text -

In this state, the URL of the web page (http://127.0.0.1:3000/index.html) does not contain any #text, as shown in the address bar below, so window.location .hash will not be referenced to store anything in the variable, so it returns false and prints "Hash value not found."

After clicking the anchor text, the value of the HTML attribute href="//m.sbmmt.com/m/faq/#java" is concatenated with the current URL, so window.location.hash contains the concatenated hash text "//m.sbmmt.com/m/faq/#java", so the name of the hash that returns true is stored in in variable "h" and "h" variable will be checked in if-else condition and its output will be displayed inside "outputVal" id container.

in conclusion

When the anchor link is clicked, it will redirect us to the hash content.

This provides the user with an interactive interface with directions to the hashed linked content. Location objects also have many beneficial properties, such as href, origin, pathname, and more. The Window object also provides various methods for operating the browser, such as location, history, open(), close(), etc.

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