Filters in AngularJS allow formatting of data for display to users. There are built-in filters like currency and date that format numbers and dates, and filters can be used in templates, controllers, or services. Custom filters can also be created and defined as Angular modules to transform input data in a specified way.
Controller is a JavaScript constructor function that is used to augment the Angular Scope. Controllers are the place where we define our application behaviors by defining properties and functions.
Controller is a JavaScript constructor function that is used to augment the Angular Scope. Controllers are the place where we define our application behaviors by defining properties and functions.
This is a talk I gave the at the AngleBrackets/DevIntersection conference in April of 2014 that covers the AngularJS JavaScript framework (one of my favorite frameworks out there!). In this talk I discussed the challenges with Single Page Applications (SPA) and how AngularJS helps solve those challenges with built-in support for two-way data binding, directives and filters, controllers and more. I also discuss the relationship of modules to controllers, factories and services, and more.
Chicago Coder Conference 2015
Speaker Biography: Wei Ru
Wei Ru has over 15 years of professional experience in design and development of Java enterprise applications across multiple industries. Currently he works as a technical architect at STA Group, LLC. He received a M.S. degree in Computer Science from Loyola University Chicago. As a software developer with an emphasis on Java, he strongly believes in software re-usability, open standards, and various best practices. He has successfully delivered many products using open source platforms and frameworks during his IT consultancies.
Speaker Biography: Vincent Lau
Vincent Lau has been Senior Architect at STA Group in Chicago for the last two years. He received a B.S. degree in Accounting and Finance from the University of Illinois at Chicago and worked on M.S. of Computer Science at DePaul University. He has over 15 years of software design, development, testing and project management experience on large enterprise distributed computing platforms. Most recently, he has worked on web based applications using Java, Spring, JavaScript, Angular.js, jQuery and web services. He previously had Senior Software Engineer and Lead positions in Royal Caribbean Cruises, Wells Fargo Bank, Cap Gemini America and Trans Union Corp.
Presentation: Practical AngularJS
AngularJS has been seen gaining momentum recently. Whether you want to develop a modern single-page application or to spice up only the view enabled by a traditional MVC web framework, AngularJS allows you to write cleaner, shorter code. AngularJS’ two-way data binding feature allows a declarative approach on views and controllers, and ultimately code modulization. With this strategic change and many features offered by AngularJS, learning AngularJS can be challenging. In this session, we will share some of the experiences we had in Angular UI development, we will cover:
AngularJS modules and common project setup
Communicating to a Restful service
Commonly used Angular functions, directives
UI Bootstrap, grid views and forms in AngularJS
Custom Angular directives
Asynchronous functions and event processing
Building an End-to-End AngularJS ApplicationDan Wahlin
This talk discusses how AngularJS can be used to build an end-to-end Customer Manager application. It covers structuring code and files, working with events, XHR interceptors, plus more.
What is AngularJS
AngularJS main components
View / Controller / Module / Scope
Scope Inheritance.
Two way data binding
$watch / $digest / $apply
Dirty Checking
DI - Dependence Injection
$provider vs $factory vs $service
A presentation made for the NG-CONF Israel that took place in jun 2014 at Google TLV Campus (http://ng-conf.gdg.co.il/)
its an overview of how to use ngRoute and UI-Router in your app this slideshow contain a link for a working demo
An introduction to the complex single page web application framework known as AngularJs. An attempt to overview the high-level aspects of the framework, and to supply references for further exploration.
Building Custom AngularJS Directives - A Step-by-Step Guide - Dan Wahlin | Fa...FalafelSoftware
AngularJS provides many built-in directives that can be used to manipulate the DOM, handle events, and more but there will be times when you need to write custom directives. How do you get started? Are directives really as scary as they look at first glance?
In this session Dan Wahlin will provide a step-by-step look at creating custom AngularJS directives and show how to use templates, controllers, the link function, and many other features. You'll also see how custom directives can be used along with other AngularJS features such as $http interceptors and validation. By the end of the session you'll realize that directives aren't quite as scary as they first appear.
AngularJs Superheroic JavaScript MVW Framework Services by Miracle StudiosLearnimtactics
AngularJs is next big thing. Have a read for making strong your skills in AngularJs. We are sharing with you basic model of angularjs, How it is work and what are his basics. Enjoy the information.
This is a talk I gave the at the AngleBrackets/DevIntersection conference in April of 2014 that covers the AngularJS JavaScript framework (one of my favorite frameworks out there!). In this talk I discussed the challenges with Single Page Applications (SPA) and how AngularJS helps solve those challenges with built-in support for two-way data binding, directives and filters, controllers and more. I also discuss the relationship of modules to controllers, factories and services, and more.
Chicago Coder Conference 2015
Speaker Biography: Wei Ru
Wei Ru has over 15 years of professional experience in design and development of Java enterprise applications across multiple industries. Currently he works as a technical architect at STA Group, LLC. He received a M.S. degree in Computer Science from Loyola University Chicago. As a software developer with an emphasis on Java, he strongly believes in software re-usability, open standards, and various best practices. He has successfully delivered many products using open source platforms and frameworks during his IT consultancies.
Speaker Biography: Vincent Lau
Vincent Lau has been Senior Architect at STA Group in Chicago for the last two years. He received a B.S. degree in Accounting and Finance from the University of Illinois at Chicago and worked on M.S. of Computer Science at DePaul University. He has over 15 years of software design, development, testing and project management experience on large enterprise distributed computing platforms. Most recently, he has worked on web based applications using Java, Spring, JavaScript, Angular.js, jQuery and web services. He previously had Senior Software Engineer and Lead positions in Royal Caribbean Cruises, Wells Fargo Bank, Cap Gemini America and Trans Union Corp.
Presentation: Practical AngularJS
AngularJS has been seen gaining momentum recently. Whether you want to develop a modern single-page application or to spice up only the view enabled by a traditional MVC web framework, AngularJS allows you to write cleaner, shorter code. AngularJS’ two-way data binding feature allows a declarative approach on views and controllers, and ultimately code modulization. With this strategic change and many features offered by AngularJS, learning AngularJS can be challenging. In this session, we will share some of the experiences we had in Angular UI development, we will cover:
AngularJS modules and common project setup
Communicating to a Restful service
Commonly used Angular functions, directives
UI Bootstrap, grid views and forms in AngularJS
Custom Angular directives
Asynchronous functions and event processing
Building an End-to-End AngularJS ApplicationDan Wahlin
This talk discusses how AngularJS can be used to build an end-to-end Customer Manager application. It covers structuring code and files, working with events, XHR interceptors, plus more.
What is AngularJS
AngularJS main components
View / Controller / Module / Scope
Scope Inheritance.
Two way data binding
$watch / $digest / $apply
Dirty Checking
DI - Dependence Injection
$provider vs $factory vs $service
A presentation made for the NG-CONF Israel that took place in jun 2014 at Google TLV Campus (http://ng-conf.gdg.co.il/)
its an overview of how to use ngRoute and UI-Router in your app this slideshow contain a link for a working demo
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Building Custom AngularJS Directives - A Step-by-Step Guide - Dan Wahlin | Fa...FalafelSoftware
AngularJS provides many built-in directives that can be used to manipulate the DOM, handle events, and more but there will be times when you need to write custom directives. How do you get started? Are directives really as scary as they look at first glance?
In this session Dan Wahlin will provide a step-by-step look at creating custom AngularJS directives and show how to use templates, controllers, the link function, and many other features. You'll also see how custom directives can be used along with other AngularJS features such as $http interceptors and validation. By the end of the session you'll realize that directives aren't quite as scary as they first appear.
AngularJs Superheroic JavaScript MVW Framework Services by Miracle StudiosLearnimtactics
AngularJs is next big thing. Have a read for making strong your skills in AngularJs. We are sharing with you basic model of angularjs, How it is work and what are his basics. Enjoy the information.
AngularJS primer, covering the pros and cons of AngularJS, basic concepts with code snippets, testing, caveats and a lot of links forward. It's good for getting a glimpse on AngularJS and getting hint on how to write your first templates, controllers, services, directives etc.
SC5 has used this training internally and given it to several customers with very successful results. The training has been given in a workshop form, is accompanied by a few practical exercises (that are not public yet).
The original set is made by SC5er Kari Heikkinen, published here by Lauri Svan for Aalto University course T-111.4360 Design of WWW Services.
Angular Js Get Started - Complete CourseEPAM Systems
Angular Js Advantages.Developed by Google - Most Popular, SPA (Single Page Appplications), Data Binding, Easy to Test.
Complete guide for Angular Js. Covers Basics of Angular - Module, Controllers, Filters, and Advanced topics Routing, Services, UI-Routing
Scal`a`ngular a term composed of Scala and Angular JS, a relationship, a handshake between Scala and Angular JS.
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Filters in AngularJS
1. Filters
In AngularJS, a filter provides a way to format the data we display to the user. Angular gives us
Several built-in filters as well as an easy way to create our own.
Filter can be used in view templates, controllers or services and it is easy to define your own custom filter.
We invoke filters in our HTML with the | (pipe) character inside the template binding characters {{
}}.
Example:-
{{ Value goes here | Filter name goes here }}
Build in filter in angularjs
Name Description
filter Selects a subset of items from array and returns it as a new array.
currency
Formats a number as a currency (ie $1,234.56). When no currency symbol is provided, default symbol for
current locale is used.
number Formats a number as text.
date Formats date to a string based on the requested format.
json Allows you to convert a JavaScript object into JSON string.
lowercase Converts string to lowercase.
uppercase Converts string to uppercase.
limitTo
Creates a new array or string containing only a specified number of elements. The elements are taken
from either the beginning or the end of the source array, string or number, as specified by the value and
sign (positive or negative) of limit. If a number is used as input, it is converted to a string.
orderBy
Orders a specified array by the expression predicate. It is ordered alphabetically for strings and
numerically for numbers. Note: if you notice numbers are not being sorted corre ctly, make sure they are
actually being saved as numbers and not strings.
external.js
//defining module
var app = angular.module('IG', [])
app.controller('FirstController', ['$scope', function ($scope) {
$scope.customers = [
{
name: 'David',
street: '1234 Anywhere St.'
},
{
2. name: 'Tina',
street: '1800 Crest St.'
},
{
name: 'Brajesh',
street: 'Noida'
},
{
name: 'Michelle',
street: '890 Main St.'
}
];
} ])
Index.html
<!DOCTYPE html>
<html ng-app="IG">
<head lang="en">
<meta charset="UTF-8">
<title>Filter in AngularJS</title>
<script
src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.6/angular.js">
</script>
<script src="Scripts/external.js"></script>
</head>
<body>
<div ng-controller="FirstController">
<input type="text" ng-model="SearchData" />
<ul>
<li ng-repeat="Cust in customers | filter:SearchData | orderBy:'name' | limitTo:2">
{{Cust.name}} - {{Cust.street}}
</li>
</ul>
<p>Filter uppercase ::- {{ "I am Done" | uppercase }}</p>
<p>Filter lowercase ::- {{ "Are you Done with your Work" | lowercase }}</p>
<p>Filter currency ::- {{'8794'|currency}}</p>
<p>Filter format Number ::- {{'871234'|number}}</p>
</div>
</body>
</html>
For instance, let’s say we want to capitalize our string. We can either change all the characters
In a string to be capitalized, or we can use a filter.
We can also use filters from within JavaScript by using the $filter service.
For instance, to use the lowercase JavaScript filter:
app.controller('DemoController', ['$scope', '$filter',
function ($scope, $filter) {
$scope.name = $filter('lowercase')('Ari');
}]);
3. Making Our Own Filter
As we saw above, it’s really easy to create our own custom filter. To create a filter, we put it under
Its own module. Let’s create one together: a filter that capitalizes the first character of a string.
First, we need to create it in a module that we’ll require in our app (this step is good practice):
//defining module
var app = angular.module('IG', [])
//define filter
app.filter('capitalize', function () {
return function (input) { }
});
//define filter using service as a dependent
app.filter('ReverseData', function (data) {
return function (Message) {
return Message.split("").reverse().join("") + data.Message;
};
})
Filters are just functions to which we pass input. In the function above, we simply take the input as
the string on which we are calling the filter. We can do some error checking inside the function:
//defining module
var app = angular.module('IG', [])
//define filter
app.filter('capitalize', function () {
return function (input) {
// input will be the string we pass in
if (input)
return input[0].toUpperCase() + input.slice(1);
}
});
Now, if we want to capitalize the first letter of a sentence, we can first lowercase the entire string and then capitalize
the first letter with our filter:
<!-- Ginger loves dog treats -->
{{ 'ginger loves dog treats' | lowercase | capitalize }}
Custom Filter Example
Index.html
<!DOCTYPE html>
<html ng-app="IG">
<head lang="en">
<meta charset="UTF-8">
<title>Custom Filter in AngularJS</title>
4. <script
src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.6/angular.js">
</script>
<script src="Scripts/external.js"></script>
</head>
<body>
<div ng-controller="FirstController">
<p>{{name}}</p>
<p>{{"i am brajesh" | LabelMessage}}</p>
<p>{{"i am brajesh" | ReverseData}}</p>
<p>
{{Amount | changevalue:25:3}}
</p>
</div>
</body>
</html>
external.js
//defining module
var app = angular.module('IG', [])
app.controller('FirstController', ['$scope','$filter', function ($scope,$filter) {
$scope.name = $filter('uppercase')('I am done with Controller filter');
$scope.Amount = 8000.78;
}
]);
//Filter used for welcome Message
app.filter('LabelMessage', function () {
return function (input) {
if (input)
return "Welcome "+ input[0].toUpperCase() + input.slice(1);
}
});
//Filter is used to reverse string data
app.filter('ReverseData', function () {
return function (Message) {
return Message.split("").reverse().join("");
};
})
//Pass multiple value into Custom Filter
app.filter('changevalue', function () {
return function (value, discount, DP) {
var Amount = value;
value = Amount * discount / 100;
return value.toFixed(DP);
};
});