# find-npm-prefix Find the npm project directory associated with for a given directory ## USAGE ``` const findPrefix = require('find-npm-prefix') findPrefix(process.cwd).then(prefix => { … }) ``` ## findPrefix(dir) → Promise(prefix) This computes the npm prefix, that is, the directory that npm adds and removes modules from for a given path. It takes a directory as an argument and returns a promise of the associated prefix directory. ## Algorithm 1. If the directory is a `node_modules` folder, scan up the tree till you find a non-`node_modules` directory and return that. 2. Else, look for the first parent directory that contains a `node_modules` or a `package.json` 1. If one is found, that's the prefix. 2. If none are found, return the original directory we were given