Merge 295fe153ad into 1c4e37ed8a

Hello, I've added a small blockquote below the description to indicate that this method of accessing an indefinite number of function arguments has been superseded by the use of the spread operator via rest parameters for ES6+ compatibility.

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).
 
-_1503 TILs and counting..._
+_1504 TILs and counting..._
 
 ---
 
@@ -297,6 +297,7 @@ _1503 TILs and counting..._
 - [Configure Global gitignore File](git/configure-global-gitignore-file.md)
 - [Configuring The Pager](git/configuring-the-pager.md)
 - [Copy A File From Another Branch](git/copy-a-file-from-another-branch.md)
+- [Count All Files Of Specific Type Tracked By Git](git/count-all-files-of-specific-type-tracked-by-git.md)
 - [Create A New Branch With Git Switch](git/create-a-new-branch-with-git-switch.md)
 - [Delete All Untracked Files](git/delete-all-untracked-files.md)
 - [Determine The Hash Id For A Blob](git/determine-the-hash-id-for-a-blob.md)

git/count-all-files-of-specific-type-tracked-by-git.md

@@ -0,0 +1,27 @@
+# Count All Files Of Specific Type Tracked By Git
+
+I want to get a count of all the markdown files in my [TIL
+repo](https://github.com/jbranchaud/til). Since all the files I care about are
+tracked by `git`, I can use `git ls-files` to get a listing of all files. That
+command on its own lists all files tracked by your git repository. Though there
+are many other flags we can apply, that will do for my purposes.
+
+By giving `git ls-files` a pattern to match against, I can turn up just, for
+instance, markdown files (`*.md`). I can pipe that to `wc -l` to get a count
+rather than exploding my terminal with a list of file names.
+
+```bash
+❯ git ls-files '*.md' | wc -l
+    1503
+```
+
+That command includes `README.md` and `CONTRIBUTING.md`, but really I only want
+to count the markdown files that constitute a TIL. Those all happen to be
+nested under a single directory. So I can tweak the glob pattern like so:
+
+```bash
+❯ git ls-files '*/*.md' | wc -l
+    1501
+```
+
+See `man git-ls-files` for more details.

javascript/accessing-arguments-to-a-function.md

@@ -5,6 +5,8 @@ an array-like object with all of the arguments to the function. Even if not
 all of the arguments are referenced in the function signature, they can
 still be accessed via the `arguments` object.
 
+> For ES6+ compatibility, the `spread` operator used via [rest parameters](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/rest_parameters) is preferred over the `arugments` object when accessing an abritrary number of function arguments.
+
 ```javascript
 function argTest(one) {
   console.log(one);