FCC-js-tutorial-part-04.js

/*
TODO: *Debugging
*/

// !4.01: Use the JavaScript Console to Check the Value of a Variable
let a = 5;
let b = 1;
a++;
// Only change code below this line
console.log(a)

let sumAB = a + b;
console.log(sumAB);

// !4.02: Understanding the Differences between the freeCodeCamp and Browser Console
let output = "Get this to show once in the freeCodeCamp console and not at all in the browser console";
console.log(output)
console.clear()

// !4.03: Use typeof to Check the Type of a Variable
let seven = 7;
let three = "3";
console.log(seven + three);
// Only change code below this line
console.log(seven + three)
console.log(typeof (seven))
console.log(typeof (three))

// !4.04: Catch Misspelled Variable and Function Names

let receivables = 10;
let payables = 8;
let netWorkingCapital = receivables - payables;
console.log(`Net working capital is: ${netWorkingCapital}`);

// !4.05: Catch Unclosed Parentheses, Brackets, Braces and Quotes

let myArray = [1, 2, 3];
let arraySum = myArray.reduce((previous, current) => (previous + current));
console.log(`Sum of array values is: ${arraySum}`);

// !4.06: Catch Mixed Usage of Single and Double Quotes
let innerHtml = "<p>Click here to <a href='#Home'>return home</a></p>";
console.log(innerHtml);

// !4.07:Catch Use of Assignment Operator Instead of Equality Operator
let x = 7;
let y = 9;
let result = "to come";

if (x == y) {
    result = "Equal!";
} else {
    result = "Not equal!";
}

console.log(result);

// !4.08:Catch Missing Open and Closing Parenthesis After a Function Call
function getNine() {
    let x = 6;
    let y = 3;
    return x + y;
}

let result = getNine();
console.log(result);

// !4.09: Catch Arguments Passed in the Wrong Order When Calling a Function
function raiseToPower(b, e) {
    return Math.pow(b, e);
}

let base = 2;
let exp = 3;
let power = raiseToPower(base, exp);
console.log(power);

// !4.10:Catch Off By One Errors When Using Indexing
function countToFive() {
    let firstFive = "12345";
    let len = firstFive.length;
    // Only change code below this line
    for (let i = 0; i < len; i++) {
        // Only change code above this line
        console.log(firstFive[i]);
    }
}

countToFive();

// !4.11:Use Caution When Reinitializing Variables Inside a Loop
function zeroArray(m, n) {
    // Creates a 2-D array with m rows and n columns of zeroes
    let newArray = [];

    for (let i = 0; i < m; i++) {
        // Adds the m-th row into newArray
        let row = []; // call row inside of the first for loop
        for (let j = 0; j < n; j++) {
            // Pushes n zeroes into the current row to create the columns
            row.push(0);
            row.in // add this line after the row.push(0)
        }
        // Pushes the current row, which now has n zeroes in it, to the array
        newArray.push(row);
    }
    return newArray;
}

let matrix = zeroArray(3, 2);
console.log(matrix);


// !4.12: Prevent Infinite Loops with a Valid Terminal Condition
function myFunc() {
    for (let i = 1; i <= 4; i += 2) {
        console.log("Still going!");
    }
}