w3apps/vending-machine

vending-machine's Issues

Technologies used

• WebPack (+plugins) - to build and bundle the application; it's one of the most advanced bundlers at the moment and it has some really cool features like: tree-shaking, code-splitting, dynamic require etc.;
• ES6 (Babel) - the code is written in ES6 which comes with a lot of syntactic sugar to make code more readable and smaller; Babel is used to transpile the code to ES5 so that it works on all modern browsers;
• Redux - it was the go to library because I had the most experience with using it;
• lodash - used it for utility functions to avoid having to maintain utility code if it's already well written and well tested.

Improvements

Technical:

• Add js & css linters;
• Add dependency locking;
• Improve the build system;
• Use pure functions for the simple components;
• Improve the way the displayMessage is handled;
• Write unit-tests;
• Use a server to persist the data so the application can be used by multiple people at the same time;
• Consider alternative "dataBase" structure: "product based" vs. "vending machine based" (which is used now);

Product:

• Show the entered code;
• Notify the user about the received product;
• Handle edge cases (e.g. 2 products with the same code);
• Store the products as an object instead of an array to void looping through the array multi times when we need a certain item;
• Give back change.

VendingMachine diagram