Getrect - JavaScript

Getrect is a JavaScript library that allows you to get the rectangular coordinates of an HTML element in the DOM. It is useful for a variety of applications, such as creating interactive games, animations, or visualizations.

Installation

You can install Getrect via npm:

npm install getrect

Alternatively, you can include it directly in your HTML:

<script src="https://unpkg.com/getrect/dist/getrect.min.js"></script>

Usage

To use Getrect, simply call the getRect function and pass in the element you want the rectangular coordinates for:

const element = document.getElementById('my-element');
const rect = getRect(element);

The rect object will contain the following properties:

• left: the left coordinate of the element
• top: the top coordinate of the element
• right: the right coordinate of the element
• bottom: the bottom coordinate of the element
• width: the width of the element
• height: the height of the element

console.log(rect.left);    // returns the left coordinate of the element
console.log(rect.top);     // returns the top coordinate of the element
console.log(rect.right);   // returns the right coordinate of the element
console.log(rect.bottom);  // returns the bottom coordinate of the element
console.log(rect.width);   // returns the width of the element
console.log(rect.height);  // returns the height of the element

Example

Here is an example of how to use Getrect to create a simple animation:

<div id="box"></div>

<script>
const box = document.getElementById('box');

function animate() {
  const rect = getRect(box);

  // Update the position of the box
  box.style.left = (rect.left + 1) + 'px';

  // Continue the animation
  requestAnimationFrame(animate);
}

animate();
</script>

In this example, the animate function is called repeatedly using the requestAnimationFrame method. It gets the current position of the box element using getRect, updates its position by incrementing its left coordinate by 1, and then requests another animation frame. This creates the illusion of a continuously moving box.

Conclusion

Getrect is a simple, yet powerful JavaScript library that makes it easy to get the rectangular coordinates of an HTML element. It is easy to use and can be quickly integrated into any project.