Error in chapter 4 - validate doesn't work

[paulyang0125]

there's no "false" returned or error in the console unless you put {validate: true} on set func....

like

person.set('age', -1, {validate: true});
Age must be positive
false

Grabbed from http://www.codebeerstartups.com/2012/12/4-adding-validations-in-models-in-backbone-js-learning-backbone-js/

var person = new Person;
person.get('age')// will return 23 as default value
person.set('age', -1)// will return false and value ie -1 will not be set

person.on('error', function(model,error){
console.log(error); // printing the error message on console.
});

[huwd]

Yeah, just to confirm I'm still getting the same as above.

Also in the post like 9 is written if ( attributes.age < ){ instead of if ( attributes.age < 0){

Though i realise this is an old tut now, not sure if it's still maintained?