I chose this topic because we will be using it for projects. Wanted to know more about it, get some trick and also share it among the pupils. Also i have come to notice most companies in the web development require a potential employee to have this kind of programming language. At least an understanding of it.
AngularJS is a structural framework for dynamic web apps. It lets you use HTML as your template language and lets you extend HTML’s syntax to express your application’s components clearly and succinctly. AngularJS’s data binding and dependency injection eliminate much of the code you would otherwise have to write. And it all happens within the browser, making it an ideal partner with any server technology.
AngularJS is what HTML would have been, had it been designed for applications. HTML is a great declarative language for static documents. It does not contain much in the way of creating applications, and as a result building web applications is an exercise in what do I have to do to trick the browser into doing what I want?
The impedance mismatch between dynamic applications and static documents is often solved with:
- a library – a collection of functions which are useful when writing web apps. Your code is in charge and it calls into the library when it sees fit. E.g.,
jQuery. - frameworks – a particular implementation of a web application, where your code fills in the details. The framework is in charge and it calls into your code when it needs something app specific. E.g.,
durandal,ember, etc.
AngularJS takes another approach. It attempts to minimize the impedance mismatch between document centric HTML and what an application needs by creating new HTML constructs. AngularJS teaches the browser new syntax through a construct we call directives. Examples include:
- Data binding, as in
{{}}. - DOM control structures for repeating, showing and hiding DOM fragments.
- Support for forms and form validation.
- Attaching new behavior to DOM elements, such as DOM event handling.
- Grouping of HTML into reusable components.
A complete client-side solution
AngularJS is not a single piece in the overall puzzle of building the client-side of a web application. It handles all of the DOM and AJAX glue code you once wrote by hand and puts it in a well-defined structure. This makes AngularJS opinionated about how a CRUD (Create, Read, Update, Delete) application should be built. But while it is opinionated, it also tries to make sure that its opinion is just a starting point you can easily change. AngularJS comes with the following out-of-the-box:
- Everything you need to build a CRUD app in a cohesive set: Data-binding, basic templating directives, form validation, routing, deep-linking, reusable components and dependency injection.
- Testability story: Unit-testing, end-to-end testing, mocks and test harnesses.
- Seed application with directory layout and test scripts as a starting point.
Example ::
<!DOCTYPE html>
<html>
https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js
<body>
Input something in the input box:
Name:
</body>
</html>
preview code:
Input something in the input box:
Name:
so with this example , you input a word or name to the name field and automatically it give you a feed back instantly below the name field. You guys should try it and see what i’m talking about. Very fun..
I have learned a lot about Angularjs. You can do a whole lot just on a single page without refreshing it or changing the page. Which is very efficient. I normally use jquery for my programming in web development but comparing it with Angularjs, i think Anjularjs is far easy, efficient than jquery. I might be wrong since i have not learned into it so deep. but for the small coding i did, was very easy and understandable.
Links::https://docs.angularjs.org/guide/introduction
From the blog CS@worcester – Site Title by Derek Odame and used with permission of the author. All other rights reserved by the author.
