Hello folks! welcome back to a new edition of our tutorial on AngularJS. In this tutorial, we will be studying about AngularJS Ajax.
AngularJS gives $http control which works as a service to read data from server. The server calls the database to get the desired records. AngularJS needs data in format of JSON. Once the data is ready, $http control can be used to obtain the data from server in the following way -
function studentController($scope,$https:) {
var url = "data.txt";
$https:.get(url).success( function(response) {
$scope.students = response;
});
}
Here, the file data.txt holds student records. $http service makes an AJAX call and sets response to its property students. students model can be used to draw tables in HTML.
Example
Create a file data.txt.
[
{
"Name" : "Kennedy Nkpara",
"RollNo" : 101,
"Percentage" : "80%"
},
{
"Name" : "Bethel Igwela",
"RollNo" : 201,
"Percentage" : "70%"
},
{
"Name" : "Stephanie Francis",
"RollNo" : 191,
"Percentage" : "75%"
},
{
"Name" : "Julian Joe",
"RollNo" : 111,
"Percentage" : "77%"
}
]
READ: AngularJS | Includes
Create a file testAngularJS.html.
<html> <head> <title>Angular JS Includes</title> <style> table, th , td { border: 1px solid grey; border-collapse: collapse; padding: 5px; } table tr:nth-child(odd) { background-color: #f2f2f2; } table tr:nth-child(even) { background-color: #ffffff; } </style> </head> <body> <h2>AngularJS Sample Application</h2> <div ng-app = "" ng-controller = "studentController"> <table> <tr> <th>Name</th> <th>Roll No</th> <th>Percentage</th> </tr> <tr ng-repeat = "student in students"> <td>{{ student.Name }}</td> <td>{{ student.RollNo }}</td> <td>{{ student.Percentage }}</td> </tr> </table> </div> <script> function studentController($scope,$http) { var url = "/data.txt"; $http.get(url).then( function(response) { $scope.students = response.data; }); } </script> <script src = "https://ajax.googleapis.com/ajax/libs/angularjs/1.2.15/angular.min.js"> </script> </body> </html>
Output
To execute the above example, you need to deploy testAngularJS.html and data.txt file to a server. Open the file testAngularJS.html using the URL of your server in a browser to see the following result -
AngularJS Sample Application
| Name | Roll No | Percentage |
|---|---|---|
| Kennedy Nkpara | 101 | 80% |
| Bethel Igwela | 201 | 70% |
| Stephanie Francis | 191 | 75% |
| Julian Joe | 111 | 77% |
READ: AngularJS | Forms
Alright guys! This is where we are going to be rounding up for this tutorial. In our next tutorial, we are going to be studying about AngularJS Views.
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Thanks for reading and bye for now.