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 <script></script> 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 button using the
tag -
Step 2- Insert the onclick event in the button label
-
Step 3 - Create JavaScript arrow function checkHash().
-
Step 4 - Use the windowobject method location and the location method hash. 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" .
In the given code, it contains an HTML button which contains "onclick()" event handler which gives JavaScript user defined function "checkHash()". When
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