The ng-init directive is used to initialize an AngularJS Application data. It defines the initial value for an AngularJS application and assigns values to the variables. The ng-init directive defines initial values and variables for an AngularJS application.Keeping this in consideration, why we use ng init in AngularJS?
Ng-init directive is used to initialize a variable, which will allows evaluating an expression in given scope. According to angular official document, this directive is abused as it adds unnecessary business logic in the application. Still to evaluate an expression we required that directive.
Furthermore, what is the NG in angular? Ng stands for aNGular. NG is a core module, and this module contains all the directives that comes built in with the AngularJS library file. ng prefix on your own directives in order to avoid possible name collisions in future versions of Angular. All these directives have prefix 'ng'
In respect to this, when Ng INIT is called?
In Angular 1. x, ngInit is called when template is re-rendered. In other words “ng-init” is called, when I take turns back to a page. Angular 2 provides life cycle hook ngOnInit by default. The ngOnInit is invoked when the component is initialized and invoked only once when the directive is instantiated.
Which directive initializes an AngularJS application?
ng-app
What is NG model?
What is ng-model in AngularJs? ng-model is a directive in Angular. JS that represents models and its primary purpose is to bind the "view" to the "model". You can use the ng-model directive to map the text box fields of "First name" and "Last Name" to your data model.How does ng repeat work?
The ng-repeat directive repeats a set of HTML, a given number of times. The set of HTML will be repeated once per item in a collection. The collection must be an array or an object. Note: Each instance of the repetition is given its own scope, which consist of the current item.What are ng directives?
Directives are markers on a DOM element that tell AngularJS to attach a specified behavior to that DOM element or even transform the DOM element and its children. In short, it extends the HTML. Most of the directives in AngularJS are starting with ng- where ng stands for Angular.What are services in AngularJS?
Services are JavaScript functions, which are responsible to perform only specific tasks. This makes them individual entities which are maintainable and testable. The controllers and filters can call them on requirement basis. Services are normally injected using the dependency injection mechanism of AngularJS.What is data ng app in AngularJS?
AngularJS | ng-app Directive. The ng-app Directive in AngularJS is used to define the root element of an AngularJS application. This directive automatically initializes the AngularJS application on page load. It can be used to load various modules in AngularJS Application. Syntax: <element ng-app=""> Contents </What is Ng controller in AngularJS?
AngularJS ng-controller Directive The ng-controller directive adds a controller to your application. In the controller you can write code, and make functions and variables, which will be parts of an object, available inside the current HTML element. In AngularJS this object is called a scope.What is Ng repeat in AngularJS?
Angular-JS ng-repeat directive is a handy tool to repeat a set of HTML code for a number of times or once per item in a collection of items. ng-repeat is mostly used on arrays and objects. Here “MyObjectName” is a collection that can be an object or an array and you can access each value inside it using a “keyName”.How many Ng app are on a page?
You can only have one ng-app per page. You can only associate a single module with a single HTML element.How do you use NG bind?
Definition and Usage The ng-bind directive tells AngularJS to replace the content of an HTML element with the value of a given variable, or expression. If the value of the given variable, or expression, changes, the content of the specified HTML element will be changed as well.What is scope in Angular JS?
Scope in AngularJS. The $scope in an AngularJS is a built-in object, which contains application data and methods. You can create properties to a $scope object inside a controller function and assign a value or function to it. The $scope is glue between a controller and view (HTML).What is the second argument in watch?
The first argument basically points to the value to watch. This can be a string containing the name of a variable in scope, or a function that returns the variable itself. The second argument takes a function that looks like this. function (newValue, oldValue) { // Take action. }What is dependency injection in AngularJS?
Dependency Injection is a software design in which components are given their dependencies instead of hard coding them within the component. AngularJS provides a supreme Dependency Injection mechanism. It provides following core components which can be injected into each other as dependencies.What is the function of the $timeout service?
The $timeout service can be used to call another JavaScript function after a given time delay. The $timeout service only schedules a single call to the function. For repeated calling of a function, see $interval later in this text.Which character is used to chain multiple filters?
The pipe symbol ( | ) is used to chain multiple filters together.Which of the following is true about ng init directive?
Q 19 - Which of the following is true about ng-init directive? A - ng-init directive initializes an AngularJS Application data. B - ng-init directive is used to put values to the variables to be used in the application.On which types of component can we create a custom directive?
Custom Directives can be created on any types of components. The following list describes some examples, To render bulk html and svg tags based on the scope and additional functionalities, it can be written as a custom directive with scope values as input.Which directive is used to define the variable in AngularJS?
The ng-init directive is added to our div tag to define a variable called "chapters" which is an array variable containing 3 strings. The ng-repeat element is used by declaring an inline variable called "names" and going through each element in the chapters array. 
