how can we use $compile outside a directive in Angularjs

I want to use $compile in a controller inside a function and not in a directive. is it possible? I am trying the below code.

$compile('<div ng-attr-tooltip="test">Cancel</div>')(scope)

But this is throwing scope is undefined error. I tried to pass $scope inside the function but it is not working.

Solution 1:

How would Angular know that you changed the DOM? You need to compile your html before appending it (using $compile service).

If you absolutely need access outside of a directive you can create an injector.

$(function() {
  // myApp for test directive to work, ng for $compile
  var $injector = angular.injector(['ng', 'myApp']);
  $injector.invoke(function($rootScope, $compile) {
    $('body').prepend($compile('<div ng-attr-tooltip="test">Cancel</div>')($rootScope));
  });
});

Solution 2:

It's worth to note, the injector in previous answer (var $injector = angular.injector(['ng', 'myApp']);) will not append compiling directive to your currently running angular app, it will create new instead.

To dynamically append new directives to your app, you should use already existed injector:

$(function() {
  angular.element(document).injector().invoke(function($rootScope, $compile) {
    $('body').prepend($compile('<div ng-attr-tooltip="test">Cancel</div>')($rootScope));
  });
});

See last paragraph in documentation.