event loop examples

event-loop.js

function multiply(a, b) {
    return a * b;
};

function square(n) {
    return multiply(n, n)
};

function printSquare(n) {
    var squared = square(n);

    console.log(squared);
};

printSquare(4);

// ------- call stack -------
// multiply(n, n)
// square(n)
// printSquare(4) // when clean -> add console.log(squared); -> clean
// main()

// --------------------------

function foo(a, b) {
    throw new Error('Oops!');
};

function bar(n) {
    foo();
};

function baz(n) {
    bar();
};

baz();

// we see stack trace in console when error happen

function foo() {
    return foo();
}

foo();

// recursiv = Maximum call stack size exceeded
// main() -> foo() -> foo() ...


// -------------------------

console.log('Hi');

setTimeout(function() {
    console.log('There');
}, 5000);

console.log('All');

// Hi -> All -> There

console.log('Hi');

setTimeout(function() {
    console.log('There');
}, 0);

console.log('All');

// Hi -> All -> There