I've been trying to rewrite some code of ours to comply with ES6 and have encountered the following issue.
angular.js:63 Uncaught Error: [$injector:modulerr] Failed to instantiate module app due to: Error: [$injector:pget] Provider 'books' must define $get factory method.
This is when I write the provider object in this code.
(() => {
const app = angular.module('app', []);
const books = () => { // Error is here
let includeVersionInTitle = false;
this.$get = () => {
const appName = "Book Logger";
const appDesc = "Track which books you read.";
let version = "1.0";
appName = (includeVersionInTitle) ? (appName += " " + version) : appName;
return {
appName: appName,
appDesc: appDesc
}
};
this.setIncludeVersionInTitle = (value) => {
includeVersionInTitle = value;
};
};
app.provider("books", [books]);
})();
When I change const books = () => { ... } to this, const books = function() { ... }. It'll work and not throw that error.
I thought that const a = function() { ... } and const a = () => { ... } where the same thing? Why does it throw this error out?
