Ethereum Cookbook

How to do it...

These steps are used to compile and deploy smart contracts: 

1. Consider the following contract as an example:

pragma solidity ^0.4.21;contract HelloWorld {    string textToPrint = "hello world";    function changeText(string _text) public {        textToPrint = _text;    }    function printSomething() public view returns (string) {        return textToPrint;    }}

2. Import the contract into your source by either reading it from a file or directly assigning it to a variable as a string:

var contract = "pragma solidity ^0.4.21; contract HelloWorld { string textToPrint = "hello world"; function changeText(string _text) public { textToPrint = _text; } function printSomething() public view returns (string) { return textToPrint; } }";

3. Compile the contract ...