Write once & run everywhere?

Cross platform? YES

Write once, run everywhere?

• Yes, to some point.
• No, actually.

But every where got a browser, why not?

1. The differences of User Interface
2. Browser capitability
3. Device performance

To some point, using web to create app won’t speed up the time, because you have to deal with the cross-browsers differences. On the other hand, using the native component promises you the user interface and code would work in your designed platform. That is, in some cases, coding in HTML/JS/CSS may use more time than coding in both iOS and Android.

What’s next? We’re going to take a look at “The tools we need in this course”.