Looking for a way to utilize an old JS library containing functions like the following in Angular code:
function TestService() {
}
TestService.init = function() {
------
}
TestService.foo = function() {
--------------
}
Is there a method to encapsulate these functions as a service or factory to integrate them effectively? Any assistance would be greatly appreciated.
When your class is intended to be instantiated using new, you can simply pass it to .service:
app.service('testService', TestService);
By doing this, Angular will automatically invoke new on it once to create a singleton.
Update:
I initially believed that there was an error in your question and that the functions were actually supposed to be assigned to the prototype.
If all you require is that function, you can return it using a factory or constant:
app.factory('testService', function() {
return TestService:
});
Alternatively:
app.constant('testService', TestService);
Absolutely! :
// Experimenting with a new library
function tester() {}
tester.prototype.hello = function() {
alert('hello');
}
tester.prototype.bye = function() {
alert('bye');
}
app.factory('testFactory', function() {
// Utilizing the library here
return new tester();
});
Then, implement it in the controller :
// Controller function
function GreetingsCtrl($scope, testFactory) {
testFactory.hello();
}
Give it a try :
To utilize the returning class from angular.factory, you can create a TestService class with static methods:
class TestService {
constructor() {
console.log('instance initialized');
}
static init() {
console.log('static init')
}
static foo() {
console.log('static foo');
}
}
angular.module('app', [])
.factory('TestService', () => TestService)
.run((TestService) => {
new TestService();
TestService.init();
TestService.foo();
})<script src="https://code.angularjs.org/1.6.2/angular.js"></script>
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