Update conditional branching

Author: odsantos

1-js/02-first-steps/10-ifelse/5-rewrite-if-question/solution.md

@@ -1,6 +1,6 @@
 
 
 ```js
-result = (a + b < 4) ? 'Below' : 'Over';
+let result = (a + b < 4) ? 'Below' : 'Over';
 ```
 

1-js/02-first-steps/10-ifelse/5-rewrite-if-question/task.md

@@ -4,13 +4,14 @@ importance: 5
 
 # Rewrite 'if' into '?'
 
-Rewrite this `if` using the ternary operator `'?'`:
+Rewrite this `if` using the conditional operator `'?'`:
 
 ```js
+let result;
+
 if (a + b < 4) {
   result = 'Below';
 } else {
   result = 'Over';
 }
 ```
-

1-js/02-first-steps/10-ifelse/article.md

@@ -68,7 +68,7 @@ if (cond) {
 
 ## The "else" clause
 
-The `if` statement may contain an optional "else" block. It executes when the condition is falsy.
+The `if` statement may contain an optional `else` block. It executes when the condition is falsy.
 
 For example:
 ```js run
@@ -181,9 +181,9 @@ alert( message );
 It may be difficult at first to grasp what's going on. But after a closer look, we can see that it's just an ordinary sequence of tests:
 
 1. The first question mark checks whether `age < 3`.
-2. If true -- it returns `'Hi, baby!'`. Otherwise, it continues to the expression after the colon '":"', checking `age < 18`.
-3. If that's true -- it returns `'Hello!'`. Otherwise, it continues to the expression after the next colon '":"', checking `age < 100`.
-4. If that's true -- it returns `'Greetings!'`. Otherwise, it continues to the expression after the last colon '":"', returning `'What an unusual age!'`.
+2. If true -- it returns `'Hi, baby!'`. Otherwise, it continues to the expression after the colon ":", checking `age < 18`.
+3. If that's true -- it returns `'Hello!'`. Otherwise, it continues to the expression after the next colon ":", checking `age < 100`.
+4. If that's true -- it returns `'Greetings!'`. Otherwise, it continues to the expression after the last colon ":", returning `'What an unusual age!'`.
 
 Here's how this looks using `if..else`: