Update tutorial

kgryte · kgryte · commit c51da1951635 · 2019-08-08T14:05:07.000-07:00
diff --git a/lib/node_modules/@stdlib/repl/docs/tutorials/read_eval_print_loop.txt b/lib/node_modules/@stdlib/repl/docs/tutorials/read_eval_print_loop.txt
@@ -18,13 +18,21 @@
 
 ---
 
-• To end the tutorial at any time, enter
+• As this tutorial is a REPL presentation, enter
 
   ```javascript
   presentationStop();
   ```
 
-  followed by \*RETURN\s.
+  followed by \*RETURN\s to end this tutorial at any time.
+
+• Enter
+
+  ```javascript
+  quit();
+  ```
+
+  to exit the REPL altogether.
 
 ---
 
@@ -299,7 +307,30 @@ no result is printed.
 
 ---
 
-TODO: ans
+During iterative development, you'll occasionally forget to assign the
+results of the last expression or statement.
+
+Fortunately, the REPL has a special variable which stores the last result:
+\*ans\s.
+
+For example, run the previous statement
+
+```javascript
+1+1;
+```
+
+followed by
+
+```javascript
+ans
+```
+
+to see that \*ans\s is assigned the value \*2\s.
+
+---
+
+While not encouraged for general use, \*ans\s can be used just like any
+other variable within the top-level scope.
 
 ---
 
