It is possible to add custom methods and properties in pre-existing objects like String, Math and others

Keep practicing — related questions

• One can add custom method and properties to objects in javascript without using prototype as well.
• One can add custom method and properties to objects in javascript without using prototype as well.
• One can add custom method and properties to objects in javascript without using prototype as well.
• Is it possible to pass methods as arguments for other methods without modification.
• You cant add to list of properties that quick test users to identify an object
• Can a custom GUI form be presented to user, to fill customproperties data.
• It is possible that you an use the object property to access the native properties of any run-time object
• Which Default Property Types cannot be modified