What is the purpose of the Dojo framework?

What is the purpose of the Dojo framework?

Overview. Dojo is a JavaScript framework targeting the many needs of large-scale client-side web development. For example, Dojo abstracts the differences among diverse browsers to provide APIs that will work on all of them (it can even run on the server under Node.

What does dojo require do?

dojo. require will simply return if the package is already loaded. Allowing you to build streamlined versions of dojo. TextBox a lot, you can build a custom version of dojo that loads dijit.

What is Lang hitch in dojo?

Dojo.hitch is a neat function. It returns a function that will execute a given function in a given scope. This function allows you to control how a function executes, particularly in asynchronous operations.

What is declare in dojo?

dojo/_base/declare contains functions to define Dojo classes, which support standard Object Oriented concepts within Dojo. JavaScript uses prototype-based inheritance, not class-based inheritance (which is used by most programming languages). Dojo provides the ability to simulate class-based inheritance using dojo.

What is module in dojo?

Dojo supports modules written in the Asynchronous Module Definition (AMD) format, which makes code easier to author and debug. If you are migrating from a version of Dojo lower than 1.7, you may find the 1.8 version of this tutorial useful as it provides some guidance on migrating from Dojo’s old module system to AMD.

What is the difference between require and define in dojo?

All Dojo files use define. You use require when you are not defining a module, but you require modules that have been defined. Generally, require will be used in HTML pages. The HTML page is not a module, but requires modules to present the page to the user.

What is the function of the hitch?

Hitch definition: A trailer hitch is the primary connector between a tow vehicle and trailer. It is the structural component that bolts onto the vehicle and provides a coupling point to hook up a trailer. When you think trailer hitch, you might picture what is actually referred to as a ball mount.

What is Lang mixin?

mixin() Mixin combines two objects from right to left, overwriting the left-most object, and returning the newly mixed object for use. mixin() is very similar to extend() but only works on objects, whereas extend explicitly extends an object’s prototype.

How do I create a class in Dojo?

Add or Create a Class

1. Click on the “+ New Class” tile.
2. Enter a name for your class, select your class grade level or year, and choose your sharing points preference.
3. Click the blue “Create class” button.
4. From your new class, click on the “+ Add students” tile.
5. Enter a student’s first and last name.

Does anyone still use Dojo?

Dojo has been used widely over the years by companies such as Cisco, JP Morgan, Esri, Intuit, ADP, Fannie Mae, Daimler, and many more. Applications created with the Dojo Toolkit more than 10 years ago still work today with only minor adjustments and upgrades.

What are the functions of Dojo / base / Lang?

dojo/_base/lang contains functions for supporting Polymorphism and other language constructs that are fundamental to the rest of the toolkit. As with the rest of dojo/_base modules, if you are running the Dojo loader in legacy mode ( async: false) this module is automatically loaded.

How to find a DOM node in dojo?

The easiest way to locate a DOM Node is dojo/dom::byId, though consideration to change the id after cloning is required (IDs are unique to the document, and should be used as such). If you have a pointer to some node already, or want to avoid IDs all together, dojo/query () may be useful: clone () is always “deep”.

Which is the default context for Dojo / _ base / kernel?

By default, the context is dojo/_base/kernel::global. hitch () returns a function that will execute a given function in a given context. This function allows you to control how a function executes, particularly in asynchronous operations. Sometimes code will be written like this:

Can a dojo module be automatically loaded in legacy mode?

As with the rest of dojo/_base modules, if you are running the Dojo loader in legacy mode ( async: false) this module is automatically loaded. Even if it is automatically loaded, you should require it in to have access to its features: Clones objects and/or nodes, returning a new anything, versus a reference.