Add Open Global npm Config File as a JavaScript TIL

javascript/open-global-npm-config-file.md

@@ -0,0 +1,30 @@
+# Open Global npm Config File
+
+There are a ton of configuration settings for `npm`. I can open up the global
+`npmrc` file where those configs live with the following command:
+
+```bash
+$ npm config edit --global
+```
+
+This will open up the file in my default editor (e.g. `vim`).
+
+There are over 100 settings that are commented out with their default values. I
+can override these as needed by uncommenting them and setting them to the
+desired value.
+
+There is some useful info in the first few lines:
+
+```
+;;;;
+; npm globalconfig file: /Users/me/.asdf/installs/nodejs/20.10.0/etc/npmrc
+; this is a simple ini-formatted file
+; lines that start with semi-colons are comments
+; run `npm help 7 config` for documentation of the various options
+```
+
+1. I can see that the location of the file is specific to the version of node
+   that I current have shimmed. In this case, it's `20.10.0`. If I switch node
+   versions, there will be a different `envrc` to configure.
+
+2. I can get more info about these config values by running `npm help 7 config`.