eslint-plugin-immutable

This ESLint plugin enforces immutability in JavaScript by providing three rules: no-let (forces use of const instead of let/var), no-this (disallows this in favor of functional components), and no-mutation (prevents assignment to member expressions, blocking object mutation even with const). Version 1.0.0 is stable. It integrates with Redux+React workflows, using Babel's object-rest-spread plugin for immutable updates. Differentiates from general eslint rules by specifically targeting Redux/React patterns, with no runtime cost compared to Object.freeze().