angularInterview Flashcards
What is ng-directive?
So this is the thing that angular extends html with
What is ng-app?
Well a directive. need it so to define angular js app
What is the ng-model
it binds the value of input field with the application variable
For eg
so like it binds the input value with the name var
What is ng-bind?
so this one binds application data with the HTML view.
how do you write angular js expressions?
in the {{}}
eg : {{9+9}}}
{{func()}}
and also this can be used to bind.
what is the ng-controller?
Controls the Angular js application
What is ng-module for?
defining the angular js application
Write a code to define a module and a controller.
var app=angular.module("myApp", []);
app.controller("myController", function($scope){//write functions});What are the two ways you can write expressions?
<p></p>
{{5+5}}
ng-init purpose?
var i=0; to initialize the values to the variables
create an object in angular using the ng-init :
<div>
| {{league.adc}}</div>
What angularJS expression contain?
like js, Literals operators variable LOV = literals operators and variables
Difference between angular expression and javascript expression
angular js can be written inside the HTML
Angular doesnt support conditionals, loops and exceptions while js does
What is the angularJS module?
- defines an application
- is a container for the different parts of an application, container for the application controller
and controllers always belong to the module
$scope
$rootScope
$rootScope is the global one
angular is one way or two way? WHY?
two-way binding.
cause angularjs is the synchronization between the model and the view.
what is a scope?
the binding part between the HTML(view) and the JS(controller)
So available for both the view and the controller.
$scope is the object
what is filter?
added to expression by using | , followed by the filter
$http
makes a request to the server and returns a response
What are the methods of $http
.delete() .get() .head() .jsonp() .patch() .post() .put()
What are the properties of http?
.config : object that generates request .header : function to get header information .status : number of the HTTP status .statusText : string of the http status .data : carries response from the server
100 200 300 400 500
100-informational 200-success 300-redirect 400-client 500-server error
name angularjs events
ng-blur
ng-click
ng-copy
ng-page
What is the API to convert to lower case?
lowercase()
How to convert to the upper case?
uppercase()
how to convert to the String
toString()
how to convert to number?
isNumber()
how to include html from an external file?
ng-include
When and How to use routing?
ngRoute module
for SPA
Routing?
.when
{template}
.when
.otherwise
What does ng-init do?
So it initializes the value of the application app
ng-expression mistake know this
either this {{}}
or ng-binnd=”5+5”
Tell me the similarities/differences between angularJS and javascript
Similarities they both have Literals, Operators and Varaiables
Differences
Angular expression can be written inside the HTML
Angular supports filters but javascript does not.
It doesn’t support loops, conditionals, exceptions
What’s the code for making the module?
angular.module
So if you have the module what can you put in there?
controller, directives, filters and parts of the applications
How to create a directive?
var app=angular.module("myApp",[]);
app.directive("some", function(){});Name the ways you can invoke a directive.
ACE
- element
- attribute <div></div>
- comment
- class <div class="some"></div>
How do you place restrictions for each?
E for element C for class M for comment A for attribute so you would do restrict : A
how to include external controllers
What does json filter do?
Formats an object to a JSON String
What does limitTo do?
Limits an array/string, into a specified number of elements/characters
app.controller(“control”,function($scope, $location); What is the $location? What is the second one?
$location is the service
passed as dependency
Name the methods of $http service
.head() .delete() .get() .jsonp() .put() .post() .patch()
What are the response properties?
config data headers status statusText
What’s the point of using ng-option and ng-repeat
ng-repeat : it has to be string
ng-option : it can be object
Use ng events
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