Add Ensure Shell Can Find Global npm Binaries as a javascript til

javascript/ensure-shell-can-find-global-npm-binaries.md

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+# Ensure Shell Can Find Global npm Binaries
+
+When you install a package globablly either with yarn (or npm)
+
+```bash
+$ yarn global add vercel
+```
+
+It places the binaries for that package in the `bin` directory of your package
+manager's configured path prefix.
+
+The absolute path to this `bin` directory can be found with:
+
+```bash
+$ yarn global bin
+/Users/jbranchaud/.asdf/installs/nodejs/15.4.0/.npm/bin
+```
+
+You can ensure that everything located in that `bin` directory is on your
+shell's path by adding the following line to your shell's config file (e.g.
+`.bashrc` or `.zshrc`).
+
+```bash
+export PATH="$PATH:$(yarn global bin)"
+```
+
+Once you've updated your shell config, make sure you _source_ the file or
+restart your shell.
+
+[source](https://stackoverflow.com/a/40333409/535590)