Adding NgForm Module

[MUSIC] 0:00 A common thing to do when building a web application is collect data from users. 0:04 In this stage, 0:09 we'll add a font that will allow visitors to leave comments on our photo entries. 0:10 There are two ways to build forms in Angular. 0:15 Template Driven and Dynamic. 0:18 We'll be covering template driven forms in this course. 0:21 If you're interested in learning about dynamic forms, 0:24 I've provided a link to the documentation in the teacher's notes. 0:27 Template driven forms are pretty much what the name says. 0:31 You write your template the same way you'd write any other template. 0:34 The only difference being is your template would include a form element. 0:37 Angular's FormsModule introduces a number of helpful services and directives for 0:41 handling two way data binding, change tracking, validation, and error handling. 0:47 Let's install the FormsModule now. 0:52 On the command line, I will enter 0:54 npm install @angular/forms@2.4.2. 1:00 And then --save and -save exact. 1:07 Without the word and. 1:17 I always include the save flag to ensure that the package gets included in 1:20 the package.json file. 1:24 Save exact is optional but it's still good practice. 1:25 This is important when sharing your project with a team. 1:28 Or using a continuous integration service like Travis CI. 1:31 To make sure that the FormsModule gets bundle with all of our other vendor 1:35 scripts, we'll import the module in the vendor ts file. 1:38 We're ready to include the FormsModule in our application. 1:46 Let's open up app.module.ts. 1:51 At the top of the file where the other @angular imports are, 1:54 we will add a new line and import FormsModule. 1:58 Just like what we did with the HttpModule and the InMemoryWebApiModule, 2:21 we need to add the FormsModule to the imports array. 2:26 So it's available to all of our components in our application. 2:30 We're now ready to start using forms. 2:36 By including the FormsModule in our application, 2:39 we can begin collecting comments from our visitors. 2:42 In the next video, we'll create a comment form. 2:45