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mapping (address => uint) private balances;
address public owner;
            
Lesson #1

Data types in Solidity

Introduction to the data types found in Solidity, and basic security best practices around them.

Coming Soon

contract SimpleStore {
  function set(uint _value) public {
    value = _value;
  }
            
Lesson #2

The Basic Contract

Learn to store values on Ethereum and how to retrieve them.

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contract SimpleBank {
function SimpleBank() {
    owner = msg.sender;
}
            
Lesson #3

Constructors and Initializers

How to construct and initalize contracts with default values. Such as premine 10% of tokens in a crowdsale

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contract SampleToken {
mapping (string => uint) public balances;
            
Lesson #4

Build Your Own Token

Learn how tokens really work by building your own simplified token!

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