How to check if anonymous object has a method?

Question

How can I check if an anonymous object that was created as such:

var myObj = { 
    prop1: \'no\',
    prop2: function () { return false; }
}

Answer 1

You want hasOwnProperty():

var myObj1 = { 
	prop1: 'no',
	prop2: function () { return false; }
}
var myObj2 = { 
	prop1: 'no'
}

console.log(myObj1.hasOwnProperty('prop2')); // returns true
console.log(myObj2.hasOwnProperty('prop2')); // returns false
	

References: Mozilla, Microsoft, phrogz.net.