Javascript object type by constructor name
When one with typeof operator one gets type object it falls into somewhat wast category...
In practice you might need to narrow it down to what sort of 'object' it actually is and one way to do it is to use object constructor name to get what flavour of object it actually is: Object.prototype.toString.call(yourObject)
1. String
Object.prototype.toString.call("String")2. Number
Object.prototype.toString.call(42)3. Bool
Object.prototype.toString.call(true)4. Object
Object.prototype.toString.call(Object()) or
Object.prototype.toString.call({})
5. Function
Object.prototype.toString.call(function(){})6. Date
Object.prototype.toString.call(new Date(2015,10,21))7. Array
Object.prototype.toString.call([]);8. Null
Object.prototype.toString.call(null);9. Undefined
Object.prototype.toString.call(undefined);10. Error
Object.prototype.toString.call(Error());