None : Returns tur if argument is null or undefined
Empty: Utility function constrains the rules on ember.none by returning false for empty string and empty arrays
isArray: Use this to check whether the value is an array
MakeArray: This function is used when you want a given object in an array
Typeof: This is used to get the type of the passed argument
Compare: Used to compare two objects of possibly different types
isEqual: It checks whether the passed two arguments are logically equal
inspect: While debugging this function is useful. For a given object it returns the string description
Log_Binding: Log binding is not a function but a Boolean function. If set true ember will log all the activity that is happening on the bindings