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How to Trigger jQuery Functions After ng-repeat Finishes Populating a Table?
How to Trigger jQuery Functions After ng-repeat Finishes Populating a Table?
Nov 30, 2024 am 08:39 AM
Triggering Events after ng-repeat Population
You want to execute a jQuery function on a div containing a table populated using ng-repeat, but neither $(document).ready() nor $scope.$on('$viewContentLoaded', myFunc) triggers it.
Custom Directive Approach
Directives provide a way to create custom functionality. Since there's no built-in event for the end of an ng-repeat loop, you can use a directive to accomplish this.
There are two scenarios to consider:
- Table-wide Manipulation: If you only need to style or add events to the entire table, you can use a directive that encompasses all the ng-repeat elements.
- Element-specific Manipulation: If you need to target individual elements, you can use a directive within the ng-repeat that will act on each element after its creation.
Properties for Triggering Events
Additionally, you can utilize the following properties with ng-repeat:
- $index: The index of the current element.
- $first: Boolean indicating if the element is the first in the list.
- $middle: Boolean indicating if the element is in the middle of the list.
- $last: Boolean indicating if the element is the last in the list.
Example
Consider the following HTML:
<div ng-controller="Ctrl" my-main-directive>
<div ng-repeat="thing in things" my-repeat-directive>
thing {{thing}}
</div>
</div>
You can define directives to manipulate the elements:
angular.module('myApp', [])
.directive('myRepeatDirective', function() {
return function(scope, element, attrs) {
angular.element(element).css('color','blue');
if (scope.$last){
window.alert("im the last!");
}
};
})
.directive('myMainDirective', function() {
return function(scope, element, attrs) {
angular.element(element).css('border','5px solid red');
};
});
In this example, the myRepeatDirective sets the color of each element to blue and alerts "im the last!" for the last element. The myMainDirective sets a border around the entire table.
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