App-Object.js

var app = {
    db: {},
    next_id: 0,
    create: function(newThing) {
        // this.db[this.next_id] = newThing;
        // this.next_id ++;
        if(newThing !== ''){
        	this.db[this.next_id] = newThing;
        	this.next_id ++;
        	console.log("THING WAS ADDED")
        	return 'THING WAS ADDED';
        }else{
        	console.log("ERROR")
        	return 'new value was an empty string, nopes.';
        }
    },
    read: function(ID) {
        if(this.db[ID]){
        	return this.db[ID]; 
        } else {
        	return 'NOT FOUND';  
        }
    },
    update: function(ID, new_value) {
    	var returner = '';
	    if (this.db[ID]){
		    if (new_value !== ''){
			    this.db[ID] = new_value;
			    return 'ID was updated'
		    }
		    else {
			    return 'Invalid input';
		    }
	    }else if (new_value == ''){
		    return "Bad ID and bad input";
	    }
	    else {
		    return 'ID does not exist';
	    }
       	// make this work
		return returner // all good, bad id, bad input or bad id & bad input
    },
    delete: function(ID) {
		if(this.db[ID]){
			this.db[ID] = undefined;
			console.log('item WAS DELETED');
		} else{
			console.log('UNKNOWN ID');
		}
    }
};

console.log(app.create('Mariana'));
console.log(app.update(0,'Mariana wake up!'));
console.log(app.update (0, ''));
console.log(app.update (1, 'Bad proxy of Mariana'));
console.log(app.update (3,''));
console.log(app.db); //{0: 'Mariana wake up!'}

/*function app_handler() {
	// read user input from dom

	var result = app.create(user_input);

	// write result to dom
}*/