Get Border Width From A Div With Plain Javascript

Are you a web developer looking to jazz up your website with some cool design elements? Well, you've come to the right place! In this article, we're going to learn how to fetch the border width of a div using plain old Javascript. So, grab your coding tools and let's dive in!

To get the border width of a div element using Javascript, we need to follow a few simple steps. First, we'll select the div element we're interested in. Let's say we have a div with the id "myDiv". We can grab this element using the following code:

const myDiv = document.getElementById('myDiv');

Once we have our div element stored in the variable `myDiv`, we can proceed to get its border width. To achieve this, we can utilize the `getComputedStyle` method. This method returns an object containing all the styles applied to the element, including the border width.

Here's how you can use `getComputedStyle` to retrieve the border width of our div:

const styles = window.getComputedStyle(myDiv);
const borderWidth = styles.getPropertyValue('border-width');

In the code snippet above, we first obtain the computed styles of the div element using `getComputedStyle`. Next, we extract the value of the `border-width` property, which gives us the exact border width of the div.

But wait, there's one more thing to consider – the retrieved border width is returned as a string with the unit included (e.g., "2px"). If you need the numerical value only, you can extract it using a simple function like this:

function extractNumericValue(value) {
  return parseInt(value, 10);
}

const numericBorderWidth = extractNumericValue(borderWidth);

In the `extractNumericValue` function, we use `parseInt` to convert the string value to an integer. The `10` argument ensures that the value is parsed as a base 10 number.

Now that you've successfully obtained the border width of your div element using plain Javascript, you can utilize this information for various purposes in your web development projects. Whether you're dynamically adjusting layout elements or performing calculations based on border dimensions, knowing how to access this data is a valuable skill to have.

In conclusion, fetching the border width of a div with plain Javascript is a straightforward process that involves selecting the element, retrieving its computed styles, and extracting the desired property value. By following the steps outlined in this article, you can effortlessly access this information and leverage it to enhance your web development projects. Start experimenting with border widths today and elevate your design game! Happy coding!