gaurang847/nodejs_async.js Secret

## nodejs_async.js
function get_value_from_DB(){
    //Database related code here.
    //At the end of operation, it returns 42 if successful
    //and -1 otherwise
}

let value = get_value_from_DB();
console.log(value);             //prints 'undefined' as console.log runs before
                                //get_value_from_DB() could return a value.
	function get_value_from_DB(){
	//Database related code here.
	//At the end of operation, it returns 42 if successful
	//and -1 otherwise
	}

	let value = get_value_from_DB();
	console.log(value); //prints 'undefined' as console.log runs before
	//get_value_from_DB() could return a value.