Скачать или смотреть Automatically Inserting window.location.hash into HTML Input Value

Learn how to seamlessly insert `window.location.hash` into an HTML input field upon page load with simple JavaScript techniques.
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This video is based on the question https://stackoverflow.com/q/67863308/ asked by the user 'ShadowAccount' ( https://stackoverflow.com/u/10531430/ ) and on the answer https://stackoverflow.com/a/67863360/ provided by the user 'Kinglish' ( https://stackoverflow.com/u/1772933/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Automatically Inserting window.location.hash into HTML Input Value

Have you ever faced a situation where you want to automatically insert the window.location.hash value into an HTML input element right when the page loads? This use case can often arise in web development, particularly when you want to capture URL fragments (hashes) without requiring user interaction. In this guide, we’ll walk through a simple solution to achieve this using JavaScript.

Understanding the Problem

When you want to capture the hashtag portion of a URL (for instance, https://example.com/page# section1), you often want to use it in your web application functionality. The window.location.hash property provides you with this value, but the challenge is how to automatically set it as the value of an input field upon page load without needing a user to click a button.

The Solution

To solve this problem, we can make use of JavaScript's window.onload event. This event allows us to run specific code once the whole page is loaded, ensuring that our input element is present in the DOM before we try to manipulate it. Here’s how you can do this in a few simple steps:

Step 1: Create the HTML Input Element

First, you will need to create an HTML input element where the hash value will be inserted. You can define this in your HTML as follows:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Use JavaScript to Assign the Hash Value

Next, add a block of JavaScript code that will execute when the page loads. This script will assign the value of window.location.hash to the input field. Here is the code snippet you need:

[[See Video to Reveal this Text or Code Snippet]]

Complete Example

Putting it all together, your final HTML code should look something like this:

[[See Video to Reveal this Text or Code Snippet]]

Summary

With just a few lines of code, you can effectively insert the window.location.hash into an HTML input value automatically. This method enhances user experience by enabling dynamic content capturing without any clicks. The combination of HTML and JavaScript demonstrated here is straightforward yet powerful, allowing you to efficiently handle URL fragments in your web applications.

By using this approach, you can focus on creating seamless interactions in your web projects.

If you have any questions or need further assistance, feel free to comment below!