Intersection Observer

Observe element visibility

IntermediateTopic: Browser API
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JavaScript Intersection Observer Program

This program helps you to learn the fundamental structure and syntax of JavaScript programming.

Try This Code
const observer = new IntersectionObserver((entries) => {
    entries.forEach(entry => {
        if (entry.isIntersecting) {
            console.log('Element visible');
        }
    });
});
observer.observe(document.getElementById('element'));
Output
Element visible

Understanding Intersection Observer

Intersection Observer detects element visibility.

Note: To write and run JavaScript programs, you need to set up the local environment on your computer. Refer to the complete article Setting up JavaScript Development Environment. If you do not want to set up the local environment on your computer, you can also use online IDE to write and run your JavaScript programs.

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