fix: audit string and variables lectures quizzes reviews (freeCodeCamp#57639)

Co-authored-by: Dario-DC <[email protected]>

Author: majestic-owl448

curriculum/challenges/_meta/lecture-working-with-strings-in-javascript/meta.json

@@ -10,14 +10,14 @@
       "id": "672d2654f78cbf20e0ba4501",
       "title": "What Is Bracket Notation, and How Do You Access Characters from a String?"
     },
-    {
-      "id": "673263d58da27ea7809963bf",
-      "title": "What Are Template Literals, and What Is String Interpolation?"
-    },
     {
       "id": "673263df0eb568a7b450f2fc",
       "title": "How Do You Create a Newline in Strings and Escape Strings?"
     },
+    {
+      "id": "673263d58da27ea7809963bf",
+      "title": "What Are Template Literals, and What Is String Interpolation?"
+    },
     {
       "id": "673263e80dd43da7df3ae565",
       "title": "How Can You Find the Position of a Substring in a String?"

curriculum/challenges/english/25-front-end-development/lecture-introduction-to-javascript/672d26385dbe73203c4dac81.md

@@ -70,7 +70,7 @@ Think about how JavaScript can change the webpage's content or styles without ne
 
 ---
 
-JavaScript interacts with the DOM to change content and styles dynamically.
+JavaScript interacts with the page to change content and styles dynamically.
 
 ---
 

curriculum/challenges/english/25-front-end-development/lecture-introduction-to-javascript/672d497cb1a1675e47bf7ea1.md

@@ -74,7 +74,7 @@ Remember the rules for starting a variable name and avoiding special characters
 
 ---
 
-`return`
+`const`
 
 ### --feedback--
 

curriculum/challenges/english/25-front-end-development/lecture-introduction-to-javascript/672d49c4e899345f5b33c24c.md

@@ -50,7 +50,7 @@ Think about where you can see the results of the `console.log` method.
 
 ## --text--
 
-Which of the following examples correctly uses `console.log` to display the value of a variable?
+Which of the following examples correctly uses `console.log` to display the value of a string?
 
 ## --answers--
 
@@ -110,11 +110,11 @@ Think about the basic structure of `console.log` and where the variable should g
 
 ---
 
-`console.write(age);`
+`console.log("age");`
 
 ### --feedback--
 
-Think about the basic structure of `console.log` and where the variable should go.
+Think about the difference between a variable and a string.
 
 ## --video-solution--
 

curriculum/challenges/english/25-front-end-development/lecture-working-with-data-types/6732518a8627876f4fcd18a4.md

@@ -14,7 +14,7 @@ Watch the lecture video and answer the questions below.
 
 ## --text--
 
-What does the `typeof` operator return when used on a `string` in JavaScript?
+What does the `typeof` operator return when used on a string in JavaScript?
 
 ## --answers--
 
@@ -86,7 +86,7 @@ Recall the unexpected behavior when checking the type of `null`.
 
 ## --text--
 
-How does `typeof` behave when checking the type of a `number`?
+How does `typeof` behave when checking the type of a number?
 
 ## --answers--
 

curriculum/challenges/english/25-front-end-development/lecture-working-with-strings-in-javascript/672d2654f78cbf20e0ba4501.md

@@ -14,35 +14,35 @@ Watch the video lecture and answer the questions below.
 
 ## --text--
 
-What is the index of the character `"b"` in the string `"JavaScript"`?
+What is the index of the character `"r"` in the string `"JavaScript"`?
 
 ## --answers--
 
-2
+`2`
 
 ### --feedback--
 
-Remember that index numbers start from 0.
+Remember that index numbers start from `0`.
 
 ---
 
-4
+`4`
 
 ### --feedback--
 
-Remember that index numbers start from 0.
+Remember that index numbers start from `0`.
 
 ---
 
-6
+`6`
 
 ---
 
-8
+`8`
 
 ### --feedback--
 
-Remember that index numbers start from 0.
+Remember that index numbers start from `0`.
 
 ## --video-solution--
 

curriculum/challenges/english/25-front-end-development/quiz-javascript-strings/66edc31c44f1b9c1d5c5ebca.md

@@ -205,7 +205,7 @@ developer[2];
 
 #### --text--
 
-How can you obtain the ASCII index of a character in a string?
+How can you obtain the ASCII value of a character in a string?
 
 #### --distractors--
 
@@ -309,23 +309,23 @@ How can you check if the string `"JavaScript"` contains a specific substring?
 
 #### --text--
 
-Which method extracts a substring from the string `"JavaScript"`?
+Which of the following extracts the substring `"Script"` from the string `"JavaScript"`?
 
 #### --distractors--
 
-`"JavaScript".remove()`
+`"JavaScript".remove(3)`
 
 ---
 
-`"JavaScript".extract()`
+`"JavaScript".extract(4)`
 
 ---
 
-`"JavaScript".cut()`
+`"JavaScript".cut(3)`
 
 #### --answer--
 
-`"JavaScript".slice()`
+`"JavaScript".slice(4)`
 
 ### --question--
 

curriculum/challenges/english/25-front-end-development/quiz-javascript-variables-and-data-types/66edc25ae5ea80bf6f785552.md

@@ -51,7 +51,7 @@ Which of the following is NOT a JavaScript data type?
 
 ---
 
-`bigint`
+`bigInt`
 
 #### --answer--
 
@@ -87,19 +87,19 @@ Which of the following is a conventional variable name in JavaScript?
 
 #### --distractors--
 
-`let my_var;`
+`my_var;`
 
 ---
 
-`let my-var;`
+`my-var;`
 
 ---
 
-`let MyVar;`
+`MyVar;`
 
 #### --answer--
 
-`let myVar;`
+`myVar;`
 
 ### --question--
 
@@ -109,11 +109,11 @@ What is the difference between `let` and `const` variable declarations in JavaSc
 
 #### --distractors--
 
-`let` is block scoped, `const` is not.
+`const` cannot be re-assigned nor re-declared. `let` can be re-assigned and re-declared.
 
 ---
 
-`const` is block scoped, `let` is not.
+`const` can be re-assigned and re-declared. `let` cannot be re-assigned nor re-declared.
 
 ---
 
@@ -127,23 +127,28 @@ What is the difference between `let` and `const` variable declarations in JavaSc
 
 #### --text--
 
-What is the difference between local and global scope in JavaScript?
+What would be the outcome of the following code?
+
+```js
+let name = "Andy";
+name[0] = "M";
+```
 
 #### --distractors--
 
-Variables declared in local scope can be accessed from anywhere in the program.
+The value of `name` would be `"MAndy"`.
 
 ---
 
-Variables declared in global scope can only be accessed from inside a function.
+The value of `name` would be `"Mndy"`.
 
 ---
 
-Variables declared in global scope cannot be re-declared.
+The value of `name` would still be `"Andy"`.
 
 #### --answer--
 
-Variables declared in global scope can be accessed from anywhere in the program.
+It would throw an error.
 
 ### --question--
 
@@ -193,7 +198,7 @@ Adds the string `world` to the variable `hello`, and prints it out in the consol
 
 #### --answer--
 
-Creates a third empty string, copies the values of both strings to it, and finally reassigns the `hello` variable to the third string and prints it out in the console.
+Creates a new string that is made of the values of `hello` and `" world"` combined together, and assigns this new string back to `hello` and then prints it out in the console.
 
 ### --question--
 
@@ -375,32 +380,23 @@ Which of the following declares a variable in JavaScript that cannot be changed?
 
 #### --text--
 
-In the code below, which variable is in the global scope in JavaScript:
-
-```js
-let a = 0;
-
-if (a < 10) {
-  let b = 1;
-  return a + b;
-}
-```
+Which of the following is a valid variable name in JavaScript?
 
 #### --distractors--
 
-Variable `b` is in the global scope.
+`tart@n`
 
 ---
 
-Both variables `a` and `b` are in the global scope.
+`4cats`
 
 ---
 
-None of the variables are in the global scope.
+`!!dogs`
 
 #### --answer--
 
-Variable `a` is in the global scope, and can be accessed from anywhere in the program.
+`$number`
 
 ### --question--
 
@@ -414,7 +410,7 @@ Which of the following is NOT a valid string concatenation method in JavaScript?
 
 ---
 
-```console.log(`${string1} ${string2}`);```
+``console.log(`${string1} ${string2}`);``
 
 ---
 
@@ -428,79 +424,65 @@ Which of the following is NOT a valid string concatenation method in JavaScript?
 
 #### --text--
 
-What will be the output of the following code:
-
-```js
-let hello = "hello";
-if (true) {
-  let world = "world";
-}
-console.log(hello + " " + world);
-```
+Which of the following variable names uses camelCase correctly?
 
 #### --distractors--
 
-`hello world`
+`a_long_variable_name`
 
 ---
 
-`helloworld`
+`alongvariableName`
 
 ---
 
-`hello`
+`ALongVariableName`
 
 #### --answer--
 
-`ReferenceError: world is not defined`
+`aLongVariableName`
 
 ### --question--
 
 #### --text--
 
-What will be the output of the code below:
-
-```js
-const x = 0;
-while (x < 10) x++;
-console.log(x);
-```
+Which chatacter JavaScript uses to mark the end of a statement?
 
 #### --distractors--
 
-`10`
+`:`
 
 ---
 
-`0`
+`,`
 
 ---
 
-`1 2 3 4 5 6 7 8 9 10`
+`.`
 
 #### --answer--
 
-`TypeError: Assignment to constant variable.`
+`;`
 
 ### --question--
 
 #### --text--
 
-Given the string `freeCodeLamp`, which JavaScript string method can be used to turn it into `freeCodeCamp`?
+Which of the following is NOT a JavaScript data type?
 
 #### --distractors--
 
-`"freeCodeLamp"[8] = "C";`
+`Symbol`
 
 ---
 
-`"freeCodeLamp".charAt(8) = "C";`
+`Boolean`
 
 ---
 
-`"freeCodeLamp".indexOf("L") = "C";`
+`Null`
 
 #### --answer--
 
-`"freeCodeLamp".replace("L", "C");`
+`Float`