browser event loop code example

Example 1: javascript event loop

function task(message) {
    // emulate time consuming task
    let n = 10000000000;
    while (n > 0){
        n--;
    }
    console.log(message);
}

console.log('Start script...');
task('Download a file.');
console.log('Done!');
Code language: JavaScript (javascript)

Example 2: javascript event loop

console.log('Hi!');

setTimeout(() => {
    console.log('Execute immediately.');
}, 0);

console.log('Bye!');
Code language: JavaScript (javascript)