Ten basic principles of coding

Another one from Uncle Bob, the Single Responsibility Principle dictates that each module is only ever responsible for one thing. To create clear programs and code, the Single Responsibility Principle means for each module to control a single optionality. Your final version of code probably includes main functionality and options. When sharing your code, clearly mark sections of code which should and should not be modified. Open code signals to others that those sections can be modified without breaking the programme, whereas closed code lets others know what not to change.