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I have written an angularjs factory as below
module.factory('LogService', function () { function log(msg) { console.log("Rahkaran:" + new Date() + "::" + msg); } return { log: log }; }); But I kept getting this error
Provider 'LogService' must return a value from $get factory method
I googled about the error and I couldn't find any solution.
Coincidentally I changed the return statement to this
return{ log: log }; And error is gone!!
Is there any differences between having { in front of return or at the next line?
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AngularJS Factory Method makes the development process of AngularJS application more robust. A factory is a simple function which allows us to add some logic to a created object and return the created object. The factory is also used to create/return a function in the form of reusable code which can be used anywhere within the application.
The return value of this function is the service instance created by this recipe. Note: All services in AngularJS are singletons. That means that the injector uses each recipe at most once to create the object. The injector then caches the reference for all future needs.
The Provider also tells the Angular Injector how to create the instance of dependency. There are four ways by which you can create the dependency: They are Class Provider (useClass), Value Provider (useValue ), Factory Provider ( useFactory ), and Aliased Class Provider ( useExisting).
AngularJS provides you three ways : service, factory and provider to create a service. A factory is a simple function which allows you to add some logic before creating the object. It returns the created object.
This is called Automatic semicolon insertion
The return statement is affected by automatic semicolon insertion (ASI). There is no line terminator ; between the return keyword and the expression allowed.
return a + b; // is transformed by ASI into return; a + b; So you must insert { in front of return and Not at the next line.
Reference: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/return
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