Update sprint 1

Author: Arthur

Sprint-1/1-key-exercises/1-count.js

@@ -5,3 +5,6 @@ count = count + 1;
 
 // Line 1 is a variable declaration, creating the count variable with an initial value of 0
 // Describe what line 3 is doing, in particular focus on what = is doing
+In line 3 , the new item adds 1 to turn count into a new value . 
+
+1 adds into an old value and update its own value ,  it becomes a new value now.

Sprint-1/1-key-exercises/3-paths.js

@@ -18,8 +18,19 @@ console.log(`The base part of ${filePath} is ${base}`);
 
 const dir =  filePath.slice(0, lastSlashIndex);
 
-// Create a variable to store the dir part of the filePath variable
+// Create a variable to store the dir part of the filePath 
+const ext =  filePath.slice(filePath.lastIndexOf(".") + 1); 
+
 // Create a variable to store the ext part of the variable
 
 
-// https://www.google.com/search?q=slice+mdn
+// https://www.google.com/search?q=slice+mdn
+
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Sprint-1/2-mandatory-errors/1.js

@@ -1,5 +1,7 @@
 // trying to create an age variable and then reassign the value by 1
-function X(num){
-const age = num +1; 
-return age;}
-console.log(X(33));
+
+let age = 0; // Initialize the age variable
+age = age + 1; // Reassign the value by 1
+console.log(age);
+
+