To create a custom directive in AngularJS, you need to follow these steps:
1. Define the directive: Use the `directive` method of the AngularJS module to define a new directive. The method takes two parameters: the name of the directive and a factory function that returns the directive definition object.
javascript
angular.module(‘myApp’, [])
.directive(‘myDirective’, function() {
return {
restrict: ‘E’,
template: ‘<div>This is my custom directive</div>’
};
});
2. Use the directive: In your HTML markup, you can now use the custom directive by adding the directive name as an element or attribute.
html
<my-directive></my-directive>
or
html
<div my-directive></div>
3. Customize the directive: You can customize the behavior of the directive by adding properties to the directive definition object.
javascript
angular.module(‘myApp’, [])
.directive(‘myDirective’, function() {
return {
restrict: ‘E’,
template: ‘<div>This is my custom directive</div>’,
link: function(scope, element, attrs) {
// Add custom behavior here
}
};
});
In the example above, the `link` property is used to define a function that will be executed when the directive is linked to the DOM. This function can be used to manipulate the DOM, add event listeners, or perform other custom actions.
4. Pass data to the directive: You can pass data to the directive by using attributes on the directive element.
html
<my-directive my-attribute="value"></my-directive>
In the directive definition object, you can access the attribute values using the `attrs` parameter of the `link` function.
javascript
angular.module(‘myApp’, [])
.directive(‘myDirective’, function() {
return {
restrict: ‘E’,
template: ‘<div>This is my custom directive</div>’,
link: function(scope, element, attrs) {
var attributeValue = attrs.myAttribute;
// Use the attribute value here
}
};
});
These are the basic steps to create a custom directive in AngularJS. You can further customize the directive by adding more properties to the directive definition object, such as `controller`, `scope`, `require`, etc.