Debugging (ex. 1 to 12)

+ Finished Debugging module

Author: hgonzaga

04-debugging/01-use-the-js-console-to-check-the-value-of-a-variable.js

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+/*
+Use the JavaScript Console to Check the Value of a Variable:
+Use the console.log() method to print the value of the variable a where noted in the code.
+
+- Your code should use console.log() to check the value of the variable a.
+ */
+let a = 5;
+let b = 1;
+a++;
+// Only changed code below this line
+console.log(a);
+let sumAB = a + b;
+console.log(sumAB);

04-debugging/02-understanding-the-differences-between-the-freeCodeCamp-and-browser-console.js

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+/*
+Understanding the Differences between the freeCodeCamp and Browser Console:
+First, open your browser console so you can see the logs.
+To do that, you can right-click the freeCodeCamp navigation bar at the top and click inspect on most browsers.
+Then find the console tab in the window that opens.
+
+After that, use console.log to log the output variable.
+View the two consoles to see the log. Finally, use console.clear after your log to clear the browser console.
+View the difference in the two consoles.
+
+- You should use console.log() to print the output variable.
+- You should use console.clear() to clear the browser console.
+- You should clear the console after your log.
+ */
+let output = "Get this to show once in the freeCodeCamp console and not at all in the browser console";
+console.log(output);
+console.clear();

04-debugging/03-use-typeof-to-check-the-type-of-a-variable.js

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+/*
+Use typeof to Check the Type of a Variable:
+Add two console.log() statements to check the typeof each of the two variables seven and three in the code.
+
+- Your code should use typeof in two console.log() statements to check the type of the variables.
+- Your code should use typeof to check the type of the variable seven.
+- Your code should use typeof to check the type of the variable three.
+*/
+let seven = 7;
+let three = "3";
+console.log(seven + three);
+// Only changed code below this line
+console.log(typeof seven);
+console.log(typeof three);

04-debugging/04-catch-misspelled-variable-and-function-names.js

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+/*
+Catch Misspelled Variable and Function Names:
+Fix the two spelling errors in the code so the netWorkingCapital calculation works.
+
+- Check the spelling of the two variables used in the netWorkingCapital calculation, the console output should show that "Net working capital is: 2".
+- There should be no instances of mis-spelled variables in the code.
+- The receivables variable should be declared and used properly in the code.
+- There should be no instances of mis-spelled variables in the code.
+- The payables variable should be declared and used properly in the code.
+
+Initial code:
+let receivables = 10;
+let payables = 8;
+let netWorkingCapital = recievables - payable;
+console.log(`Net working capital is: ${netWorkingCapital}`);
+*/
+let receivables = 10;
+let payables = 8;
+let netWorkingCapital = receivables - payables;
+console.log(`Net working capital is: ${netWorkingCapital}`);

04-debugging/05-catch-unclosed-parentheses-brackets-braces-and-quotes.js

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+/*
+Catch Unclosed Parentheses, Brackets, Braces and Quotes:
+Fix the two pair errors in the code.
+
+- Your code should fix the missing piece of the array.
+- Your code should fix the missing piece of the .reduce() method. The console output should show that Sum of array values is: 6.
+
+Initial code:
+let myArray = [1, 2, 3;
+let arraySum = myArray.reduce((previous, current =>  previous + current);
+console.log(`Sum of array values is: ${arraySum}`);
+*/
+let myArray = [1, 2, 3];
+let arraySum = myArray.reduce((previous, current) =>  previous + current);
+console.log(`Sum of array values is: ${arraySum}`);

04-debugging/06-catch-mixed-usage-of-single-and-double-quotes.js

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+/*
+Catch Mixed Usage of Single and Double Quotes:
+Fix the string so it either uses different quotes for the href value, or escape the existing ones.
+Keep the double quote marks around the entire string.
+
+- Your code should fix the quotes around the href value #Home by either changing or escaping them.
+- Your code should keep the double quotes around the entire string.
+
+Initial code:
+let innerHtml = "<p>Click here to <a href="#Home">return home</a></p>";
+console.log(innerHtml);
+*/
+let innerHtml = "<p>Click here to <a href=\"#Home\">return home</a></p>";
+console.log(innerHtml);

04-debugging/07-catch-use-of-assignment-operator-instead-of-equality-operator.js

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+/*
+Catch Use of Assignment Operator Instead of Equality Operator:
+Fix the condition so the program runs the right branch, and the appropriate value is assigned to result.
+
+- Your code should fix the condition so it checks for equality, instead of using assignment.
+- The condition should use either == or === to test for equality.
+
+Initial code:
+let x = 7;
+let y = 9;
+let result = "to come";
+
+if(x = y) {
+  result = "Equal!";
+} else {
+  result = "Not equal!";
+}
+
+console.log(result);
+ */
+let x = 7;
+let y = 9;
+let result = "to come";
+
+if(x === y) {
+    result = "Equal!";
+} else {
+    result = "Not equal!";
+}
+
+console.log(result);

04-debugging/08-catch-missing-open-and-closing-parenthesis-after-a-function-call.js

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+/*
+Catch Missing Open and Closing Parenthesis After a Function Call:
+Fix the code so the variable result is set to the value returned from calling the function getNine.
+
+- Your code should fix the variable result, so it is set to the number that the function getNine returns.
+- Your code should call the getNine function.
+
+Initial code:
+function getNine() {
+  let x = 6;
+  let y = 3;
+  return x + y;
+}
+
+let result = getNine;
+console.log(result);
+ */
+function getNine() {
+    let x = 6;
+    let y = 3;
+    return x + y;
+}
+
+let result = getNine();
+console.log(result);

04-debugging/09-catch-arguments-passed-in-the-wrong-order-when-calling-a-function.js

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+/*
+Catch Arguments Passed in the Wrong Order When Calling a Function:
+The function raiseToPower raises a base to an exponent.
+Unfortunately, it's not called properly - fix the code so the value of power is the expected 8.
+
+- Your code should fix the variable power, so it equals 2 raised to the 3rd power, not 3 raised to the 2nd power.
+- Your code should use the correct order of the arguments for the raiseToPower function call.
+
+Initial code:
+function raiseToPower(b, e) {
+  return Math.pow(b, e);
+}
+
+let base = 2;
+let exp = 3;
+let power = raiseToPower(exp, base);
+console.log(power);
+ */
+function raiseToPower(b, e) {
+    return Math.pow(b, e);
+}
+
+let base = 2;
+let exp = 3;
+let power = raiseToPower(base, exp);
+console.log(power);

04-debugging/10-catch-off-by-one-errors-when-using-indexing.js

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+/*
+Catch Off By One Errors When Using Indexing:
+Fix the two indexing errors in the following function so all the numbers 1 through 5 are printed to the console.
+
+- Your code should set the initial condition of the loop, so it starts at the first index.
+- Your code should fix the initial condition of the loop, so that the index starts at 0.
+- Your code should set the terminal condition of the loop, so it stops at the last index.
+- Your code should fix the terminal condition of the loop, so that it stops at 1 before the length.
+
+Initial code:
+function countToFive() {
+  let firstFive = "12345";
+  let len = firstFive.length;
+  // Only change code below this line
+  for (let i = 1; i <= len; i++) {
+  // Only change code above this line
+    console.log(firstFive[i]);
+  }
+}
+
+countToFive();
+*/
+function countToFive() {
+    let firstFive = "12345";
+    let len = firstFive.length;
+    // Only changed code below this line
+    for (let i = 0; i < len; i++) {
+        // Only changed code above this line
+        console.log(firstFive[i]);
+    }
+}
+
+countToFive();