The ES6 Promise Constructor And Its Executor Function Are Invoked Synchronously

test.js

console.log( "Start." );

// Check to see that Promise constructor is executed synchronously.
var promise = new Promise(
	function( resolve, reject ) {

		console.log( "In Promise constructor." );

		resolve( "Future value." );

	}
);

// Check to see that Promise resolution handlers are invoked asynchronously.
promise.then(
	function( result ) {

		console.log( "Promise resolution:", result );

	}
);

console.log( "End." );