Other noteworthy APIs and libraries

The goal of this book is not to go through all the APIs that come with HTML5, but there are some that are worth taking a look at, including some interesting Dart libraries. You probably won't use them on a daily basis, but it's good to know that there's such things available to you.

Typed lists for fast numeric computing

Even though everything in Dart is an object and the VM is very well optimized, there's a built-in dart:typed_data library, which we already mentioned in the audio visualizer app. This library contains data structures (mostly lists) with fixed size n-bit signed / unsigned integers / floats. In other words, lists that can contain only n-bit numbers and no objects.

In practice, if we knew we wanted to store only 8-bit values (that's 0-255) in an array, we could use the Uint8List class instead of List<int>. This could represent, for example, image colors:

import 'dart:io';
import 'dart:typed_data...

Tech Concepts

Programming languages

Tech Tools

Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.

Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.

50+ new titles added per month and exclusive early access to books as they are being written.

DART Essentials

By : Sikora

DART Essentials

By: Sikora

Overview of this book

Other noteworthy APIs and libraries

Typed lists for fast numeric computing

DART Essentials

By : Sikora

DART Essentials

By: Sikora

Overview of this book

Other noteworthy APIs and libraries

Typed lists for fast numeric computing

Confirmation

Buy this book with your credits?

Submit Your Feedback

Create a Free Account To Continue Reading

Sign in to activate your 7-day free access