Address the issues from the pull request comments again

Author: anosidium

Sprint-1/1-key-exercises/4-random.js

@@ -10,6 +10,6 @@ const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 
 // num represents a random number in the interval [1,100]
 // First, it starts with 100 - 1 + 1, which is equals to 100
-// Secondly, it multiply with Math.random(), which the function returns any number in the interval [0,1]
+// Secondly, it multiply with Math.random(), which the function returns any number in the interval [0,1)
 // Thirdly, Math.floor() rounds down and returns the largest integer less than or equal to a given number
 // Finally, it adds 1

Sprint-1/3-mandatory-interpret/1-percentage-change.js

@@ -12,7 +12,7 @@ console.log(`The percentage change is ${percentageChange}`);
 // Read the code and then answer the questions below
 
 // a) How many function calls are there in this file? Write down all the lines where a function call is made
-// Line 4, 5, 10
+// 5 (2 × Number(), 2 × replaceAll(), 1 × log())
 
 // b) Run the code and identify the line where the error is coming from - why is this error occurring? How can you fix this problem?
 // It's missing a comma between the arguments at line 5 in replaceAll() method

Sprint-1/4-stretch-explore/chrome.md

@@ -26,4 +26,6 @@ It displays an alert with a textfield where you can enter some text, e.g. John.
 
 What is the return value of `prompt`?
 
-The string returned from the textfield what the user has entered otherwise null if the user left it blank.
+If the user has entered text, the return value is a string containing the entered text.
+If the user leaves the text field blank and clicks the OK button, the return value is an empty string.
+If the user enters a name or leaves the text field blank but clicks the Cancel button, the return value is null.