finished my tasks

Author: Shayida999

Sprint-2/1-key-errors/0.js

@@ -9,5 +9,23 @@ function capitalise(str) {
   return str;
 }
 
+
 // =============> write your explanation here
 // =============> write your new code here
+
+///The error is :
+
+let str = `${str[0].toUpperCase()}${str.slice(1)}`;
+
+//str is already a parameter of the function.
+//Doing let str = ... is like giving it a new name in the same place, which JavaScript does not allow.
+//we can just use the existing str instead of declaring it again.
+
+function capitalise(str) {
+
+  // make the first letter uppercase
+
+  str = str[0].toUpperCase() + str.slice(1);
+
+  return str;
+}

Sprint-2/1-key-errors/1.js

@@ -9,12 +9,35 @@ function convertToPercentage(decimalNumber) {
   const decimalNumber = 0.5;
   const percentage = `${decimalNumber * 100}%`;
 
-  return percentage;
+  return percentage;=
 }
 
 console.log(decimalNumber);
 
 // =============> write your explanation here
 
+Answer:
+
+The number (0.5) goes into the function — that’s our decimalNumber.
+
+We use that decimalNumber to make a percent.
+
+We don’t write const decimalNumber again because we already have it.
+
+We return the answer (like "50%").
+
+Then we call the function with 0.5 and print what it gives back.
+
 // Finally, correct the code to fix the problem
 // =============> write your new code here
+
+function convertToPercentage(decimalNumber) {
+
+  const percentage = `${decimalNumber * 100}%`;
+  
+  return percentage;
+
+}
+
+console.log(convertToPercentage(0.5));
+

Sprint-2/1-key-errors/2.js

@@ -6,15 +6,34 @@
 // =============> write your prediction of the error here
 
 function square(3) {
+    
     return num * num;
 }
 
 // =============> write the error message here
 
+SyntaxError: Unexpected number
+
+
 // =============> explain this error message here
 
+the function takes the number we give it (3) and times it by itself.
+
+so 3 * 3 = 9.
+
+it works now cuz we used num instead of a number in the ()
+
+
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
 
+function square(num){
+
+    return num * num
+  }
+  
+  console.log(square(3))
+  
+