Angularjs controller examples

In previous post, we have seen a very simple angularjs hello world example. In this post, we are going to see about controllers.
You can consider controllers as main driver for model view changes. It is a main part of angular js application and It is javascript functions or objects which actually performs ui operation. It controls data of angularjs applications.

What is $scope?

Scope is an object which is glue between model and view. So if you want to pass data from model to view and view to model, it is done through scopes object.

How controllers and scope are related?

Actually controllers passes scope object as constructor parameter and initialise model values and functions. Please don’t worry if it sounds very confusing, once we see simple example, you will be able to relate.

Declaration of controller syntax :

You need declare module before creating controller. We will learn about module in our next tutorial.
So we use module’s controller method to declare controller.

Simple example:

Copy below text , open notepad , paste it and save it as angularJSControllerExample.html and open it in the browser.


Live Demo:

Angular js controller example

What if you don’t want to use $scope?

Yes, you can use controller as option too if you do not want to use $scope variable.
so you need to use
Advantages of using controller as options are:
  • Code becomes more readable.
  • It removes dealing with this scope and bindings.
  • There is no dependency on alias used in view(.html) and javascript

Lets take an example:

Copy below text , open notepad , paste it and save it as angularJSControllerExample.html and open it in the browser.


Live demo:

Angular js controller as example

Related Posts

  • nvarchar vs varchar
    29 July

    nvarchar vs varchar in SQL Server

    Table of ContentsIntroductionVARCHARNVARCHARExamples to Demonstrate Difference between VARCHAR and NVARCHARVARCHAR vs NVARCHAR Comparison Chart This article will look at the difference between the data types NVARCHAR and VARCHAR in SQL Server. These data types are commonly used for storing textual data or strings for various design purposes. We will look at the description of each […]

  • Stream2watch
    29 July

    Stream2watch alternatives -13 Best Websites Like Streamtowatch in 2021

    Table of ContentsBest Working Proxies of the Stream2watch in 2021Stream2Watch alternativesSport365SportP2PCricFree12th PlayerVIP BoxLiveTVWiziwigStopStreamSport LemonMamaHDLAOLA1Sport RARTime4TVfuboTVFirstRowSportsVIP LeagueFrequently Asked Questions**Is Stream2watch a safe website?What are the best Streamtowatch Alternatives?Do you need an account for Stream2watch?Final Words Are you after the best Stream2watch alternatives? Good News! this article is all about efficient web-based resources for streaming football, baseball, […]

  • 29 July

    AirPod Case not Charging – Common Issues and Fixes

    Table of ContentsBefore you StartWhy Is My AirPod Case Not Charging?Five Easy Solutions for AirPods Case Not Charging1. Reset Your AirPods Case2. Clean the Charging Port 3. Get a new Charger and Cable4. Update the AirPods Firmware5. Replace the CaseTips for Avoid AirPod not Charging IssueFrequently Asked QuestionsWhy isn’t my AirPod case charging, but my AirPods […]

  • Mobdro alternatives
    29 July

    Mobdro Alternatives – 14 Best apps like Mobdro in 2021

    Table of ContentsBest Mobdro Alternatives Working in 2021Cyberflix TVMorph TVTerrarium TVTea TVVisit Thop TVTubi Tv123MoviesMovie BoxVuduOreo TVMegaBox HDFreeFlixYuppTVFrequently Asked QuestionsWhat is Mobdro?Why do you need Mobdro alternatives?Are there free Mobdro alternatives?Wrapping Up Can’t access Mobdro anymore and are worried about watching your favorite movies? Take a breath; you still have a long list of working […]

  • Select rows by multiple conditions using loc in Pandas
    29 July

    Select rows by multiple conditions using loc in Pandas

    The loc() function in a pandas module is used to access values from a DataFrame based on some labels. It returns the rows and columns which match the labels. We can use this function to extract rows from a DataFrame based on some conditions also. First, let us understand what happens when we provide a […]

  • Split dataframe in Pandas
    28 July

    Split dataframe in Pandas

    Table of ContentsUsing the iloc() function to split DataFrame in PythonBy RowsBy ColumnsUsing the sample() function to split DataFrame in PythonUsing the groupby() function to split DataFrame in PythonUsing the columns to split DataFrame in Python In real-life scenarios, we deal with massive datasets with many rows and columns. At times, we may want to […]

Leave a Reply

Your email address will not be published. Required fields are marked *

Subscribe to our newletter

Get quality tutorials to your inbox. Subscribe now.