You can install jshint locally with npm install jshint or globallywith npm install -g jshint. JSHint and ESLint is both configurable and works great. JSLint is strict and not configurable, whereas JSHint is lacking the extension mechanism. Andrés Villenas - Software Engineering, .Net Development, Sitecore, and more fun. The jshint.packageManagersetting can be used to specify which package manager you are using, npm or yarn. Code never goes from valid to invalid. While installation is something that comes quickly and easily for both libraries, initial setup is a bit more involved. JSLint, The JavaScript Code Quality Tool. curly ? It can accept a source program and analyze it without sending it over the network. JSLint Version The VS Code JSLint extension looks for a local or global npm installation of jslint. If you write React and you want to use a code linter that understands React, you’ll need to use ESLint. Warn About == null About debugging code About unsafe for..in About arguments.caller and .callee About assignments if/for/... About functions inside loops About eval About unsafe line breaks About potential typos in logical operators When code is not in strict mode When new is used for side-effects However, ESLint comes packaged with an initialization script that simplifies this process. It will lint JavaScript in files with the .js extension and optionally inside