By Greg Lim
Angular 2 is among the top frameworks to strengthen apps throughout all structures. Reuse your code and construct quick and excessive appearing apps for any platform be it net, cellular net, local cellular and local machine. you employ small practicable parts to construct a wide strong app. not more losing time attempting to find DOM nodes!
In this ebook, we take you ona enjoyable, hands-on and pragmatic trip to grasp Angular 2 from an internet improvement perspective. Youll begin construction Angular 2 apps inside of mins. each part is written in a bite-sized demeanour and instantly to the purpose as I don’t are looking to waste a while (and probably mine) at the content material you dont want. in spite of everything, you have what it takes to boost a real-life app.
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Additional info for Beginning Angular 2 with Typescript
Glyphicon-star]="rating >= 1" The condition is based on the property rating defined in the RatingComponent class below. rating = ratingValue; } } The condition works like the following, if the rating is less than one, we render the empty star icon. glyphicon-star-empty]="rating < 1" If the rating is more than or equal to one, we render the normal star icon. glyphicon-star]="rating >= 1" We add a click handler (click)="onClick(1)" to assign a rating of one if a user clicks on this star. You would probably notice that we have only one star at this point of time, when ratings usually have five stars.
Click) is an example of an output property. The input and output properties form the API of a button. We can also define the public api for a custom component. Why would we want to do that? Suppose we want to display a list of products with its rating. We will need to assign the rating value to our rating component beforehand. However, we can only use our rating component like this
Note: I was initially confused on whether a component should be in the imports or declarations array. The simple rule is, if a component, directive, or pipe belongs to a module in the imports array, don’t declare it in the declarations array. If you wrote a component and it should belong to this module, do declare it in the declarations array. html and give it the following definition:
Our form definition till now is just plain html5.
Beginning Angular 2 with Typescript by Greg Lim