Скачать или смотреть How to Get the Corresponding Value of a Text Option in JavaScript

Learn how to effortlessly retrieve the value of a corresponding text from a select option in `JavaScript` with an easy-to-follow guide and code example.
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How to Get the Corresponding Value of a Text Option in JavaScript

If you've ever worked with forms in HTML, you've likely encountered the need to retrieve values from select elements. However, what if you want to get the value associated with a specific text in the options? This is often a tricky situation, especially when dealing with autogenerated options. In this guide, we'll walk through a practical solution for obtaining the value of a text option in JavaScript.

Understanding the Scenario

Let's say you have the following select element:

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

In this example, the option with the text "data" has a value of 86. If you wanted to retrieve the value based on the text "data", you might be wondering how to accomplish this using JavaScript.

The Solution

Step 1: Get All Options

To retrieve the value corresponding to a specific text, we first need to collect all the options from the select element.

Step 2: Use the Array Find Method

Once we have all the options, we can leverage the Array.find() method to locate the option based on its text content.

Implementing the Solution

Here’s how you can implement this in your JavaScript code:

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

Breaking Down the Code:

Selecting Options:

We use document.querySelectorAll to select all the options inside the select element.

The ... spread operator converts the NodeList into an array for easier manipulation.

Finding the Option:

The getOptionVal function takes a text argument oTxt.

We use the find method to search through the options, checking if the textContent of any option matches the provided text.

Extracting the Value:

If a match is found, we return the value associated with that option.

Logging the Result:

Finally, we log the result to the console for visibility.

The Result

When you call getOptionVal('data'), you should see the following output:

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

Conclusion

Retrieving the value of a corresponding text from a select option in JavaScript might seem daunting at first, but using a simple combination of selection and the Array.find() method can make it straightforward. Now you can easily fetch the values you need, enhancing your form functionalities!

Feel free to adapt the provided code snippet for your specific needs, and happy coding!