Within my AngularJS webpage, I have implemented a self-invoking function. One crucial aspect of this function is the getData() method, responsible for making Ajax calls to fetch data upon page load and user interactions.
<script type="text/javascript">
// Should I declare it here outside the self-invoking function with or without the var keyword?
getData = function (reqData) {
alert(reqData); // Ajax call goes here...
};
(function () {
// Should I define it within this scope?
getData = function (reqData) {
alert(reqData); // Implement Ajax call here...
};
// Should I use the var keyword?
var getData = function (reqData) {
alert(reqData);// Carry out Ajax call here...
};
PatientCategoryController = function ($http, $scope, uiGridConstants) {
// Where should I define it inside the controller?
getData = function (reqData) {
alert(reqData);// Ajax call happens here...
};
// Do I need to use the var keyword inside the controller?
var getData = function (reqData) {
alert(reqData);// Ajax call takes place here...
};
// Or is defining the function on the $scope object preferable?
$scope.getData = function (reqData) {
alert(reqData);// Perform Ajax call here...
};
angular.element(document).ready(getData('someDataToPass'));
}
PatientCategoryController.$inject = ['$http', '$scope', 'uiGridConstants'];
angular.module('demoApp', ['ui.grid', 'ui.grid.autoResize', 'ui.grid.pagination']);
angular.module('demoApp').controller('PatientCategoryController', PatientCategoryController);
}());
</script>
I am seeking guidance on how to appropriately define this function. Is it best placed on the $scope object, at the same level as the controller, or completely outside the self-invoking function?
Additionally, where should I define the JavaScript object holding data required for Ajax calls?
While working on this page, I encountered erratic JavaScript behavior which led me to start over. Due to limited experience beyond browser-based JavaScript and primarily working with Asp.Net MVC, I lack confidence in handling JavaScript-related challenges efficiently. Your advice would be greatly appreciated.