Add Beginner Friendly Examples

[nelsonic]

At present #efc23154 this repo is a good start but it does not have any code.
Our objective with any learn-xyz repo is to make it first place a person needs to go for learning that topic. E.g: https://github.com/dwyl/learn-elixir has everything the person needs to start learning Elixir including the syntax/semantics and code examples.

I propose that we:

• re-work this repo such that all code examples can be run offline provided the reader has the Dart VM installed on their computer OR
• alternatively if they are using a computer that cannot install Dart (e.g. a Chromebook or iPad), we provide links to examples on Dart Pad so they can run and play with the code online.

[nelsonic]

This looks good but it's quite old: https://youtu.be/OLjyCy-7U2U

[nelsonic]

Tensor programming "Introduction to Dart for Beginners - Types, Variables, Functions and Objects - Part One": https://youtu.be/8F2uemqLwvE

[nelsonic]

Which of these two looks more friendly and "professional":

vs:

Using a header image with the Dart Logo I made in "Paint" in less than 2 minutes:

Which one would you read?

[nelsonic]

[nelsonic]

Variables:

[nelsonic]

[nelsonic]

[nelsonic]

As of March 2020, the Google search frequency for "Flutter" has eclipsed "React Native".
https://trends.google.com/trends/explore?date=today%205-y&q=%2Fg%2F11f03_rzbg,react%20native

The Flutter GitHub repository: https://github.com/flutter/flutter has more Starts:

additionally 99.2% of the code is written in Dart which means anyone who knows Dart can read, understand, debug and contribute to it.

By contrast React Native https://github.com/facebook/react-native has fewer stars:

And the project is written in 5 programming languages! So anyone wanting to contribute a truly cross-platform UI feature needs to know at least JavaScript, Java and Objective-C.

It's a no-brainer to Learn Dart and Flutter.
Flutter will inevitably win the Cross-platform Native Mobile App "war".