Use-numeric-separators (use-numeric-separators)

'Long numbers' are numbers that have a length longer than 3.

Installation

• Coming soon

Rule Details

The use-numeric-separators rule aims to make code more readable by ensuring that long numbers uses "_".

Examples of incorrect code for this rule:

/*eslint use-numeric-separators: "error"*/

const number = 1000;

Examples of correct code for this rule:

/*eslint use-numeric-separators: "error"*/

const number = 1_000;

TODOs

• Github Actions To Publish

Resources I've Used

• ESLint's official developer guide to making rules
  • ESLint's Rule Tester
• "Ensure code quality; create your own ESLint rules"
• "How I built my first custom ESLint rule"
• AST Explorer
• Fantastic existing examples:
  • ESLint's no-magic-numbers rule
    • Test
    • Actual Code
  • eslint-plugin-jsx-a11y's lang rule
    • Test
    • Actual Code