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JavaScript Objects – Thinking about objects

Objects are a natural way of thinking about the world and of writing scripts that manipulate XHTML documents.

JavaScript uses objects to perform tasks. It is an object-based programming language.

Javascript also uses constructs from structured programming methodology.

Key terminology of object orientation

Abstraction – enables us to view screen images as objects rather than individual pixels.

Objects have attributes and behaviours.

Different objects can have similar attributes and can exhibit similar behaviours.

Objects encapsulate data (attributes) and methods (behavioiur).

The data and methods of an object are tied intimately.

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