• It establishes a framework for defining modules of code and managing their interdependencies;
• It provides build tools for optimizing JavaScript and CSS, generating documentation, and unit testing;
• It supports internationalization, localization, and accessibility;
• It provides a rich suite of commonly needed utility classes and user-interface widgets.

• dojo contains the core and most non-visual modules.
• dijit is a library of user-interface modules for widgets and layout.
• dojox holds assorted modules not yet considered stable enough to include in dojo or dijit.
• util includes build tools such as optimization, documentation, style-checking, and testing.

• Menus, tabs, and tooltips
• Sortable tables
• Dynamic charts
• 2D vector drawings
• Animated effects—fades, wipes and slides—facilities for custom animation effects

Dojo Packages

• – Add functionality and values to classes
dojo.extend(myClass,{ showUpper: function (msg) { this.say(msg.toUpperCase()}; } }); var myc = new myClass();

• – Utility function for mixing together objects
• – Powerful yet sometimes confusing function
• – Similar to extend(), but only works on objects

• – Utility function for simplifying context bindings
• – Creates a new function bound to a specific context
• – Can safely invoke without worrying about context
changes

• – Uses familiar CSS queries (which you use in your stylesheets) to retrieve a list of nodes, including support for advanced CSS3 selectors
dojo.query(".odd").forEach(function (node, index, nodelist){ dojo.addClass(node, "red"); });

• – Get and set node attributes
• dojo.style()
• – Allows access to read and manipulate CSS styles.