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Just a quick note about yarn add commands - Yarn is built on top of npm and offers the same functionality via slightly modified commands. For example:
When working with Node projects or frameworks such as Vue or React you'll run into package.json files (unless you're importing React/Vue via CDN). The package.json file is used for npm to be able to understand what packages you'd like to use in your project in the dependencies and devDependencies portions:
When working with Node projects or frameworks such as Vue or React you'll run into package.json files (unless you're importing React/Vue via CDN). The package.json file is used for npm to be able to understand what packages you'd like to use in your project in the dependencies and devDependencies portions:
When working on a project, it is common to include a testing framework such as Jest, but since the testing happens on the developer side, you don't necessarily want to make everyone that uses your package in the future to install Jest. When a package is only needed for local development instead of the normal install command, you'll see npm install --save-dev packageName, which saves the package to the "devDependencies" object, and saves your users from waiting to install a package they don't really need.
For example, if you were trying to install the Vue CLI (Command line interface) you would run: