Add Open Global npm Config File as a JavaScript TIL

README.md

@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
 
 For a steady stream of TILs, [sign up for my newsletter](https://crafty-builder-6996.ck.page/e169c61186).
 
-_1382 TILs and counting..._
+_1383 TILs and counting..._
 
 ---
 
@@ -474,6 +474,7 @@ _1382 TILs and counting..._
 - [Numbers Are Empty](javascript/numbers-are-empty.md)
 - [Object Initialization With Shorthand Property Names](javascript/object-initialization-with-shorthand-property-names.md)
 - [Obtain Undefined Value With The Void Operator](javascript/obtain-undefined-value-with-the-void-operator.md)
+- [Open Global npm Config File](javascript/open-global-npm-config-file.md)
 - [Parse A Date From A Timestamp](javascript/parse-a-date-from-a-timestamp.md)
 - [Pre And Post Hooks For Yarn Scripts](javascript/pre-and-post-hooks-for-yarn-scripts.md)
 - [Purge Null And Undefined Values From Object](javascript/purge-null-and-undefined-values-from-object.md)

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`.