block1.js

function foo() {
	// call-stack here is `foo`
        // call-site is in the global scope

	console.log( 'first' );
	baz(); // call-site here is for `baz`
}

function baz() {
	// call-stack here is `foo` -> `baz`

	console.log( 'second' );
	bar(); // call-site here is for `bar`
}

function bar() {
	// call-stack so far is `foo` -> `baz` -> `bar`
	// the call-site for this function is in 'baz'

	console.log( 'third' );
}

foo(); // call-site for `foo`