![]() Unless the R programmer uses packages such as renv (Ushey 2020) or packrat (Ushey et al. At this stage ensure you have run npm init (with or without the -y flag) from the root of the project (where the app.R file is located). ![]() We will revisit this file later in the chapter. This creates a package.json file, which is loosely equivalent to the DESCRIPTION of an R package it includes information on the dependencies of the project, the version of the project, and more. One can also pass the “yes” flag to the function to skip those questions: npm init -y. These have little importance for what we do here but will matter if you decide to publish the package on NPM. Whereas in R we previously used the usethis package to create packages with create_package or projects with create_project, NPM does not create the initial empty directory where the project will be created you have to create the directory first then initialise a new project.Īn NPM project can be initialised with the command npm init, which when run prompts the user with a few questions, such as the name of the project, the license to use, etc. This is done from the command line, from the root of the directory that you want to use as a project. This could be translated into the equivalent of starting a new project in R. With a simple application, one can initialise NPM. 15.4.6 Subscribe and Unsubscribe Inputs.
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