unify content with cosmetic changes

Author: VibingCreator

1-js/10-error-handling/1-try-catch/1-finally-or-code-after/solution.md

@@ -1,8 +1,8 @@
 The difference becomes obvious when we look at the code inside a function.
 
-The behavior is different if there's a "jump out" of `try..catch`.
+The behavior is different if there's a "jump out" of `try...catch`.
 
-For instance, when there's a `return` inside `try..catch`. The `finally` clause works in case of *any* exit from `try..catch`, even via the `return` statement: right after `try..catch` is done, but before the calling code gets the control.
+For instance, when there's a `return` inside `try...catch`. The `finally` clause works in case of *any* exit from `try...catch`, even via the `return` statement: right after `try...catch` is done, but before the calling code gets the control.
 
 ```js run
 function f() {
@@ -11,7 +11,7 @@ function f() {
 *!*
     return "result";
 */!*
-  } catch (e) {
+  } catch (err) {
     /// ...
   } finally {
     alert('cleanup!');
@@ -28,11 +28,11 @@ function f() {
   try {
     alert('start');
     throw new Error("an error");
-  } catch (e) {
+  } catch (err) {
     // ...
     if("can't handle the error") {
 *!*
-      throw e;
+      throw err;
 */!*
     }
 

1-js/10-error-handling/1-try-catch/1-finally-or-code-after/task.md

@@ -6,25 +6,25 @@ importance: 5
 
 Compare the two code fragments.
 
-1. The first one uses `finally` to execute the code after `try..catch`:
+1. The first one uses `finally` to execute the code after `try...catch`:
 
     ```js
     try {
       work work
-    } catch (e) {
+    } catch (err) {
       handle errors
     } finally {
     *!*
       cleanup the working space
     */!*
     }
     ```
-2. The second fragment puts the cleaning right after `try..catch`:
+2. The second fragment puts the cleaning right after `try...catch`:
 
     ```js
     try {
       work work
-    } catch (e) {
+    } catch (err) {
       handle errors
     }