Merge 295fe153ad into db00ec69c2

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below the description to indicate that this method of accessing an indefinite number of function arguments has been superseded by the use of the spread operator via rest parameters for ES6+ compatibility.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).
 
-_1534 TILs and counting..._
+_1535 TILs and counting..._
 
 ---
 
@@ -317,6 +317,7 @@ _1534 TILs and counting..._
 - [Grab A Single File From A Stash](git/grab-a-single-file-from-a-stash.md)
 - [Grep For A Pattern On Another Branch](git/grep-for-a-pattern-on-another-branch.md)
 - [Grep Over Commit Messages](git/grep-over-commit-messages.md)
+- [Highlight Extra Whitespace In Diff Output](git/highlight-extra-whitespace-in-diff-output.md)
 - [Ignore Changes To A Tracked File](git/ignore-changes-to-a-tracked-file.md)
 - [Ignore Files Specific To Your Workflow](git/ignore-files-specific-to-your-workflow.md)
 - [Include A Message With Your Stashed Changes](git/include-a-message-with-your-stashed-changes.md)

git/highlight-extra-whitespace-in-diff-output.md

@@ -0,0 +1,30 @@
+# Highlight Extra Whitespace In Diff Output
+
+When running a `git diff` (or `git add --patch`) I'll sometimes come across
+lines that don't have any visible changes. This is usually because some
+whitespace characters were either added (on accident) or removed (often by a
+autoformatter).
+
+Depending on the `core.whitespace` config, you'll probably see at least some of
+the whitespace errors that git provides. By default, git only highlights
+whitespace errors on added (`new`) lines. However if some extra whitespace was
+originally committed and is now being removed, it won't be highlighted on the
+`old` line in the diff.
+
+We can have git always highlight whitespace errors by setting
+`wsErrorHighlight` to `all` in the global git config.
+
+```bash
+$ git config --global diff.wsErrorHighlight all
+```
+
+Which updates the global gitconfig file with the following line:
+
+```
+[diff]
+	wsErrorHighlight = all
+```
+
+The `all` option is a shorthand for `old,new,context`.
+
+See `man git-diff` 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);