Learn AngularJS

Angular js filter

  • List types of filters in AngularJS
    Types of filters used in AngularJS are: 1) Currency, 2) Uppercase, 3) Lowercase, 4) orderBy, 5) JSON, and 6) limitTo.
  • What are filters in AngularJS?
    The main work of filters is to modify the data, so that it can be merged into an expression or directive by using a pipe character (it is used for applying filters in an angular symbol of a pipe which is (|) or this is the symbol). A filter formats the value of an expression for a display to the user. They can be used in view templates, controllers, or services, and we can easily create our own filter as well. A filter is a module provided by AngularJS. There are nine components of a filter which are provided by it. Examples: currency, date, filter, JSON, limitTo, etc.
  • Name a few inbuilt angular filters?
    Currency, lowercase, uppercase, number, date are few inbuilt angular filters. {{nameOfStudent|uppercase}} Intermediate AngularJS Interview Questions Let us take a look at some mid-level AngularJS interview questions
  • What are custom filters? Write down a syntax of the same?
    With AngularJS we can create our own filters. This can be done by associating the filter to our module. These types of filters are called custom filters. Below is the code to count the number of elements in the string by using filter: angular.module('myCountFilterApp', []) .filter('count',function() { return(function(input) { var out=[]; out=input.split(','); return out.length; }) }); In the above example, if the string is "21, 34, 45" then output after applying filter will be 3. Here is some more information on custom filters.
  • What is the significance of pipe operator in angularJs and What would be the result of following expression
    {{ Somevalue|lowercase|uppercase}} Pipe operator in AngularJS represents filters that are used on the expression. The preference order is from left to right. So, the result of the above expression would be SOMEVALUE.
  • What are filters in AngularJS ? Can you list some?
    Angualr.JS filters are efficient in modifying the data. With the help of pipe (|) character, they are clubbed into the directive or expression. Filters Functions Uppercase It used to convert text to upper case text. Lowercase It used to convert text to lower case text. Currency It is used to formats a number to a currency format. Order by It is used to orders the array on the basis of given criteria. Filter It is used to order the array to a subset of it on the basis of given criteria.
  • What is an interceptor in Angular? Why it is used?
    An interceptor is a middleware code in AngularJs where all the $http requests go through. It is attached with $httpProvider service and able to intercept request and response objects. Interceptor Middleware is useful for error handling, authentication and other filters you want to apply on request and response.
  • Which filter will be executed one or more times during the each $Digest cycle?
    $stateful filters are executed one or more times during each $Digest cycle. It is not recommended to write a $stateful filter in AngularJS.
  • What is currency filter in AngularJS
    One of the filters in AngularJS is the Currency Filter. This “currency” filter includes the “$” Dollar Symbol as the default. So we can use the following code as the html template format of Currency Filter. {{ currency_expression | currency : symbol : fractionSize}}
  • What are the filters in AngularJS?
    Filters are used to modify the data and can be clubbed in expression or directives using a pipe character. A filter formats the value of an expression for display to the user. They can be used in view templates, controllers, or services, and we can easily create our own filter. Filter is a module provided by AngularJS. There are nine components of filter which are provided by AngularJS. We can write custom as well. currency date filter json limitTo lowercase number orderBy uppercase

Overview

What you will learn?

AngularJS has improved the entire picture of developing web-based apps and running the entire web market by offering a clear way to manage the code. It aims to fulfil the expectations of today’s generation developers who require fast performance and responsiveness for their web applications. If you want to become a  web developer? All you’ll need to learn how to use new frameworks on a daily basis. Angular Js is already famous among the developers. Even for single-page applications, the AngularJS framework generates rich interactive features for a real-time experience. It’s helpful to developers and has a supportive and active area.

What are the requirements?

  • Basic understanding of Programming
  • Basic concepts related to JS

What I am going to get from this course

  • Learn the Angularjs architecture
  • Develop elements, use directives, and work with data binding
  • Work with Service and Dependency Injection
  • Design and validate model-driven forms
  • Work with the Model-View-Controller (MVC)
  • Use HTTP with Observables, routing, and pipes
  • Use custom pipes and directives
  • Learn to Perform unit testing
  • Learn to Develop attractive UI using Bootstrap

Target Audience

  • Web developers
  • Web designer
  • Students who wish to learn UI development
  • UI developer
  • Full Stack web developer

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