*So to summarize... *
// The example you provided:
> angular.controller(“MyController”,
>
[“$scope”, “$http”, * //local, not registered w/ injector?*
>
function($scope, $http) { *// global, registered w/ injector, and mapped
> to local?*
>
// ...
> }]);
>
On Tuesday, March 10, 2015 at 1:53:25 PM UTC-7, Caitlin Potter wrote:
>
> So, there are 2 kinds of things that can be injected into a function:
>
> - Things which are registered with the injector (eg, things you register
> via angular.controller(“controllerName”, …))
> - Local variables, which are not registered with the injector.
>
> You don’t need to worry about the distinction until you’re doing things
> with the injector, but it really just means that locals allow you to inject
> things which are not “registered” with the injector.
>
> On Mar 10, 2015, at 4:46 PM, adam morris <[email protected]
> <javascript:>> wrote:
>
> Caitlin, I get the gist of the third example. I looked online and found
> that upon minification, "$scope & $http" are turned to something more
> generic like "a & b" and those variables would lose their context, breaking
> the code. So that adding "[“$scope”, “$http”..." either prevents
> minification (or minification factors in) specifically on those variables.
>
> I'm a little fuzzy on global vs local $scope.
> Is the fact that '$scope' a literal make it a local variable?
>
> Thanks.
>
> On Tuesday, March 10, 2015 at 11:57:04 AM UTC-7, Caitlin Potter wrote:
>>
>> This is a way of interacting with the injector (one of several). The
>> string literal containing ‘$scope’ tells the injector that the parameter at
>> index 0 (first item in the array) should be ‘$scope’ from the injector.
>> ‘$scope’ isn’t registered globally in the injector, it comes from locals
>> (so, if you instantiate a controller via the $controller service, you can
>> supply injector locals via the second parameter, `$controller(‘ctrlName’, {
>> $scope: myScope });`.
>>
>> There are a few ways to use the injector:
>>
>> ```
>> // One example:
>> MyController.$inject = [‘$scope’, ‘$http’];
>> function MyController($scope, $http) {
>> // ...
>> }
>> angular.controller(“MyController”, MyController);
>>
>> // The example you provided:
>> angular.controller(“MyController”, [“$scope”, “$http”, function($scope,
>> $http) {
>> // ...
>> }]);
>>
>> // The third method is discouraged, because it requires parsing
>> `function.toString()`, and this
>> // does not work as expected when code is minified.
>> angular.module(“MyController”, function($scope, $http) {
>> // ...
>> });
>> ```
>>
>> These rules apply to everything that the injector deals with, from
>> directives to services to filters to controllers.
>>
>> If that didn’t clear things up, feel free to ask for clarification =)
>>
>> On Mar 10, 2015, at 2:44 PM, adam morris <[email protected]> wrote:
>>
>> Hi. I'm an angular newbie. I couldn't find an explanation of this part of
>> a controller anywhere:
>>
>> controller('myController',
>> [*'$scope'*, //mentioned first time - *what does this
>> do?*
>> function*($scope)* //mentioned second time - *how does this
>> ($scope) relate to '$scope' above?*
>>
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>>
>>
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