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If not, you can update it using:\n\nnpm install -g npm@latest\n\n# c) To check the version of Jest, run:\n\njest --version\nIf Jest is not available, you can install it globally by running:\n\nnpm install -g jest\nAlternatively, you can set up Jest for your project locally by following the steps you provided. This involves initializing a package.json file, installing Jest as a development dependency, and configuring the \"test\" script to use Jest.\n\nCreate a Test File (e.g., addition.test.js):\n\nYou can create a test file for your JavaScript code. The content of the addition.test.js file will depend on what you want to test. Jest is a popular testing framework for JavaScript, and you can write test cases using its syntax. 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