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ESLint is a code style linter and formatter for your style guide much like JSHint. ESLint merged with JSCS in April of 2016. ESLint does take more effort to set up than JSHint, but there are clear instructions on their website for getting started.

A sample configuration for ESLint is as follows:

"rules": {
"semi": ["error", "always"], // throw an error when semicolons are detected
"quotes": ["error", "double"] // throw an error when double quotes are detected }

A sample configuration file where ALL rules are set to off, with descriptions for what they do can be found here.