How to Change Span to User Input on Click Using JavaScript

Learn how to replace the text inside a span element with user input from a textbox using JavaScript in a simple, step-by-step guide.
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Change Span to User Input on Click Using JavaScript

Are you looking for a way to dynamically change the content of a <span> element with the text inputted by a user? This is a common task when building interactive web applications. In this guide, we'll explore a simple solution using JavaScript to achieve just that. Let's get started!

The Problem

Imagine you have a web page with a <span> element and a text box. When a user types something into the text box and clicks a button, you want the content of the <span> to change to whatever text the user has inputted. However, you might find that your current code only replaces the text with a hardcoded value instead of the user's input. This is a common issue that can be easily resolved.

The Solution

To tackle this problem, we will create a basic HTML structure containing a <span>, an <input> text box, and a button. When the button is clicked, the function we define will swap the .innerText of the <span> with the value of the text box.

Step-by-Step Implementation

Create HTML Structure: First, we need to set up our HTML with the necessary elements.

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

Define the JavaScript Function: Next, we'll write a JavaScript function named swap_text() which will perform the swap.

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

Explanation of the Code

Updating Span Content: The for loop iterates through each <span> element, updating its textContent with the value obtained from the text box.

Logging to Console: Lastly, we log the new input value to the console for debugging purposes. You can remove this line if it's not needed.

Complete Example

Here is how your complete code should look when put together:

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

Conclusion

Changing the content of a <span> element based on user input is a straightforward task that enhances the interactivity of your web pages. With just a few lines of JavaScript, you can create dynamic and user-responsive elements that make your website engaging and user-friendly.

Feel free to test this code in your environment and see how effortless it is to make such changes. Happy coding!