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docs(guide/concepts): improve wording

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Georgios Kalpakas
2016-08-17 17:28:00 +03:00
parent a272a3c0bd
commit 88f3517db2
1 changed files with 8 additions and 5 deletions
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docs/content/guide/concepts.ngdoc
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@@ -151,8 +151,9 @@ different currencies and also pay the invoice.
What changed?
First, there is a new JavaScript file that contains a <a name="controller">{@link controller controller}</a>.
More exactly, the file contains a constructor function that creates the actual controller instance.
The purpose of controllers is to expose variables and functionality to expressions and directives.
More accurately, the file specifies a constructor function that will be used to create the actual
controller instance. The purpose of controllers is to expose variables and functionality to
expressions and directives.
Besides the new file that contains the controller code we also added an
{@link ng.directive:ngController `ng-controller`} directive to the HTML.
@@ -251,6 +252,7 @@ Let's refactor our example and move the currency conversion into a service in an
<img class="pull-right" style="padding-left: 3em; padding-bottom: 1em;" src="img/guide/concepts-module-service.png">
What changed?
We moved the `convertCurrency` function and the definition of the existing currencies
into the new file `finance2.js`. But how does the controller
get a hold of the now separated function?
@@ -274,10 +276,11 @@ The code snippet `angular.module('invoice2', ['finance2'])` specifies that the
`finance2` module. By this, Angular uses the `InvoiceController` as well as the `currencyConverter` service.
Now that Angular knows of all the parts of the application, it needs to create them.
In the previous section we saw that controllers are created using a factory function.
For services there are multiple ways to define their factory
In the previous section we saw that controllers are created using a constructor function.
For services, there are multiple ways to specify how they are created
(see the {@link services service guide}).
In the example above, we are using an anonymous function as the factory function for `currencyConverter` service.
In the example above, we are using an anonymous function as the factory function for the
`currencyConverter` service.
This function should return the `currencyConverter` service instance.
Back to the initial question: How does the `InvoiceController` get a reference to the `currencyConverter` function?