# Coding style > All code in any code-base should look like a single person typed it, no matter how many people contributed. This section describes coding style guide of the repo. You might not agree with it and that's fine but **if you're going to send PRs treat this guide as a law**. ##### There are not too much of rules to follow: - indent style is 4 spaces - always use single quotes - one space after `if`, `for`, `while`, etc. - no spaces between `(`,`)` and statement content - use one `var` per variable - always use strict comparisons: `===` and `!==` - use semicolons - don't use comma-first notation ##### These tools will help your IDE to remind you with some of the rules listed above: - [EditorConfig](http://editorconfig.org) - [ESLint](http://eslint.org)