TheOdinProject · Nov 29, 2023 · Dec 18, 2023 · Dec 18, 2023 · Dec 29, 2023 · Dec 31, 2023
diff --git a/01_helloWorld/helloWorld.js b/01_helloWorld/helloWorld.js
@@ -1,5 +1,5 @@
 const helloWorld = function() {
-  return ''
+  return 'Hello, World!'
 };
 
 module.exports = helloWorld;
diff --git a/02_repeatString/repeatString.js b/02_repeatString/repeatString.js
@@ -1,5 +1,13 @@
-const repeatString = function() {
-
+const repeatString = function(string, num) {
+    if (num < 0) {
+        return "ERROR";
+    }
+
+    let strOutput = '';
+    for (let i = 0; i < num; i++) {
+        strOutput += string;
+    }
+    return strOutput;
 };
 
 // Do not edit below this line

diff --git a/02_repeatString/repeatString.spec.js b/02_repeatString/repeatString.spec.js
@@ -4,19 +4,19 @@ describe('repeatString', () => {
   test('repeats the string', () => {
     expect(repeatString('hey', 3)).toEqual('heyheyhey');
   });
-  test.skip('repeats the string many times', () => {
+  test('repeats the string many times', () => {
     expect(repeatString('hey', 10)).toEqual('heyheyheyheyheyheyheyheyheyhey');
   });
-  test.skip('repeats the string 1 times', () => {
+  test('repeats the string 1 times', () => {
     expect(repeatString('hey', 1)).toEqual('hey');
   });
-  test.skip('repeats the string 0 times', () => {
+  test('repeats the string 0 times', () => {
     expect(repeatString('hey', 0)).toEqual('');
   });
-  test.skip('returns ERROR with negative numbers', () => {
+  test('returns ERROR with negative numbers', () => {
     expect(repeatString('hey', -1)).toEqual('ERROR');
   });
-  test.skip('repeats the string a random amount of times', function () {
+  test('repeats the string a random amount of times', function () {
     /*The number is generated by using Math.random to get a value from between
     0 to 1, when this is multiplied by 1000 and rounded down with Math.floor it 
     equals a number between 0 to 999 (this number will change everytime you run
@@ -31,7 +31,7 @@ describe('repeatString', () => {
     was randomly generated. */
     expect(repeatString('hey', number).match(/((hey))/g).length).toEqual(number);
   });
-  test.skip('works with blank strings', () => {
+  test('works with blank strings', () => {
     expect(repeatString('', 10)).toEqual('');
   });
 });
diff --git a/03_reverseString/reverseString.js b/03_reverseString/reverseString.js
@@ -1,5 +1,10 @@
-const reverseString = function() {
-
+const reverseString = function(str) {
+    const splitStr = str.split('');
+    let reversedStr = '';
+    for (let i = splitStr.length - 1; i >= 0; i--) {
+        reversedStr += splitStr[i];
+    }
+    return reversedStr;
 };
 
 // Do not edit below this line

diff --git a/03_reverseString/reverseString.spec.js b/03_reverseString/reverseString.spec.js
@@ -5,14 +5,14 @@ describe('reverseString', () => {
     expect(reverseString('hello')).toEqual('olleh');
   });
 
-  test.skip('reverses multiple words', () => {
+  test('reverses multiple words', () => {
     expect(reverseString('hello there')).toEqual('ereht olleh')
   })
 
-  test.skip('works with numbers and punctuation', () => {
+  test('works with numbers and punctuation', () => {
     expect(reverseString('123! abc!')).toEqual('!cba !321')
   })
-  test.skip('works with blank strings', () => {
+  test('works with blank strings', () => {
     expect(reverseString('')).toEqual('')
   })
 });
diff --git a/04_removeFromArray/removeFromArray.js b/04_removeFromArray/removeFromArray.js
@@ -1,6 +1,30 @@
-const removeFromArray = function() {
+/*
+function removeFromArray(array, ...values) {
+    return array.filter(arrayValue => {
+        for (const value of values) {
+            if (value === arrayValue) {
+                return false;
+            }
+        }
+        return true;
+    })
+}
+*/
 
-};
+function removeFromArray(numbers, ...removeValues) {
+    const result = [];
+    for (const number of numbers) {
+        let numberInList = false;
+        for (const removeValue of removeValues) {
+            if (removeValue === number) {
+                numberInList = true;
+                break;
+            }
+        }
+        if (!numberInList) result.push(number);
+    }
+    return result;
+}
 
 // Do not edit below this line
 module.exports = removeFromArray;
diff --git a/04_removeFromArray/removeFromArray.spec.js b/04_removeFromArray/removeFromArray.spec.js
@@ -2,24 +2,24 @@ const removeFromArray = require('./removeFromArray')
 
 describe('removeFromArray', () => {
   test('removes a single value', () => {
-    expect(removeFromArray([1, 2, 3, 4], 3)).toEqual([1, 2, 4]);
+    expect(removeFromArray([0, 1, 2, 3, 4], 3)).toEqual([0, 1, 2, 4]);
   });
-  test.skip('removes multiple values', () => {
+  test('removes multiple values', () => {
     expect(removeFromArray([1, 2, 3, 4], 3, 2)).toEqual([1, 4]);
   });
-  test.skip('ignores non present values', () => {
+  test('ignores non present values', () => {
     expect(removeFromArray([1, 2, 3, 4], 7, "tacos")).toEqual([1, 2, 3, 4]);
   });
-  test.skip('ignores non present values, but still works', () => {
+  test('ignores non present values, but still works', () => {
     expect(removeFromArray([1, 2, 3, 4], 7, 2)).toEqual([1, 3, 4]);
   });
-  test.skip('can remove all values', () => {
+  test('can remove all values', () => {
     expect(removeFromArray([1, 2, 3, 4], 1, 2, 3, 4)).toEqual([]);
   });
-  test.skip('works with strings', () => {
+  test('works with strings', () => {
     expect(removeFromArray(["hey", 2, 3, "ho"], "hey", 3)).toEqual([2, "ho"]);
   });
-  test.skip('only removes same type', () => {
+  test('only removes same type', () => {
     expect(removeFromArray([1, 2, 3], "1", 3)).toEqual([1, 2]);
   });
 });
diff --git a/05_sumAll/sumAll.js b/05_sumAll/sumAll.js
@@ -1,5 +1,14 @@
-const sumAll = function() {
-
+const sumAll = function(firstNum, lastNum) {
+    if (firstNum < 0 || lastNum < 0 || typeof firstNum !== "number" || typeof lastNum !== "number") {
+        return "ERROR";
+    }
+    let sum = 0;
+    const minNum = Math.min(firstNum, lastNum);
+    const maxNum = Math.max(firstNum, lastNum);
+    for (let i = minNum; i <= maxNum; i++) {
+        sum += i;
+    }
+    return sum;
 };
 
 // Do not edit below this line

diff --git a/05_sumAll/sumAll.spec.js b/05_sumAll/sumAll.spec.js
@@ -4,19 +4,19 @@ describe('sumAll', () => {
   test('sums numbers within the range', () => {
     expect(sumAll(1, 4)).toEqual(10);
   });
-  test.skip('works with large numbers', () => {
+  test('works with large numbers', () => {
     expect(sumAll(1, 4000)).toEqual(8002000);
   });
-  test.skip('works with larger number first', () => {
+  test('works with larger number first', () => {
     expect(sumAll(123, 1)).toEqual(7626);
   });
-  test.skip('returns ERROR with negative numbers', () => {
+  test('returns ERROR with negative numbers', () => {
     expect(sumAll(-10, 4)).toEqual('ERROR');
   });
-  test.skip('returns ERROR with non-number parameters', () => {
+  test('returns ERROR with non-number parameters', () => {
     expect(sumAll(10, "90")).toEqual('ERROR');
   });
-  test.skip('returns ERROR with non-number parameters', () => {
+  test('returns ERROR with non-number parameters', () => {
     expect(sumAll(10, [90, 1])).toEqual('ERROR');
   });
 });
diff --git a/06_leapYears/leapYears.js b/06_leapYears/leapYears.js
@@ -1,5 +1,9 @@
-const leapYears = function() {
-
+const leapYears = function(year) {
+    if (year % 4 === 0 && (year % 100 !== 0 || year % 400 === 0)) {
+        return true;
+    } else {
+        return false;
+    }
 };
 
 // Do not edit below this line

diff --git a/06_leapYears/leapYears.spec.js b/06_leapYears/leapYears.spec.js
@@ -4,19 +4,19 @@ describe('leapYears', () => {
   test('works with non century years', () => {
     expect(leapYears(1996)).toBe(true);
   });
-  test.skip('works with non century years', () => {
+  test('works with non century years', () => {
     expect(leapYears(1997)).toBe(false);
   });
-  test.skip('works with ridiculously futuristic non century years', () => {
+  test('works with ridiculously futuristic non century years', () => {
     expect(leapYears(34992)).toBe(true);
   });
-  test.skip('works with century years', () => {
+  test('works with century years', () => {
     expect(leapYears(1900)).toBe(false);
   });
-  test.skip('works with century years', () => {
+  test('works with century years', () => {
     expect(leapYears(1600)).toBe(true);
   });
-  test.skip('works with century years', () => {
+  test('works with century years', () => {
     expect(leapYears(700)).toBe(false);
   });
 });
diff --git a/07_tempConversion/tempConversion.js b/07_tempConversion/tempConversion.js
@@ -1,7 +1,9 @@
-const convertToCelsius = function() {
+const convertToCelsius = function(fTemp) {
+  return Math.round(((fTemp - 32) * 5/9) * 10) / 10;
 };
 
-const convertToFahrenheit = function() {
+const convertToFahrenheit = function(cTemp) {
+  return Math.round(((cTemp * 9/5) + 32) * 10) / 10;
 };
 
 // Do not edit below this line

diff --git a/07_tempConversion/tempConversion.spec.js b/07_tempConversion/tempConversion.spec.js
@@ -4,22 +4,22 @@ describe('convertToCelsius', () => {
   test('works', () => {
     expect(convertToCelsius(32)).toEqual(0);
   });
-  test.skip('rounds to 1 decimal', () => {
+  test('rounds to 1 decimal', () => {
     expect(convertToCelsius(100)).toEqual(37.8);
   });
-  test.skip('works with negatives', () => {
+  test('works with negatives', () => {
     expect(convertToCelsius(-100)).toEqual(-73.3);
   });
 });
 
 describe('convertToFahrenheit', () => {
-  test.skip('works', () => {
+  test('works', () => {
     expect(convertToFahrenheit(0)).toEqual(32);
   });
-  test.skip('rounds to 1 decimal', () => {
+  test('rounds to 1 decimal', () => {
     expect(convertToFahrenheit(73.2)).toEqual(163.8);
   });
-  test.skip('works with negatives', () => {
+  test('works with negatives', () => {
     expect(convertToFahrenheit(-10)).toEqual(14);
   });
 });
diff --git a/08_calculator/calculator.js b/08_calculator/calculator.js
@@ -1,25 +1,29 @@
-const add = function() {
-
+const add = function(num1, num2) {
+	return num1 + num2;
 };
 
-const subtract = function() {
-
+const subtract = function(num1, num2) {
+	return num1 - num2;
 };
 
-const sum = function() {
-
+const sum = function(nums) {
+	return nums.reduce((acc, value) => acc + value, 0);
 };
 
-const multiply = function() {
-
+const multiply = function(nums) {
+  return nums.reduce((acc, value) => acc * value, 1);
 };
 
-const power = function() {
-
+const power = function(num1, num2) {
+	return num1 ** num2;
 };
 
-const factorial = function() {
-
+const factorial = function(num) {
+	let result = 1;
+  for (let i = num; i >= 2; i--) {
+    result *= i;
+  }
+  return result;
 };
 
 // Do not edit below this line

diff --git a/08_calculator/calculator.spec.js b/08_calculator/calculator.spec.js
@@ -5,17 +5,17 @@ describe('add', () => {
     expect(calculator.add(0, 0)).toBe(0);
   });
 
-  test.skip('adds 2 and 2', () => {
+  test('adds 2 and 2', () => {
     expect(calculator.add(2, 2)).toBe(4);
   });
 
-  test.skip('adds positive numbers', () => {
+  test('adds positive numbers', () => {
     expect(calculator.add(2, 6)).toBe(8);
   });
 });
 
 describe('subtract', () => {
-  test.skip('subtracts numbers', () => {
+  test('subtracts numbers', () => {
     expect(calculator.subtract(10, 4)).toBe(6);
   });
 });
@@ -25,53 +25,53 @@ describe('sum', () => {
     expect(calculator.sum([])).toBe(0);
   });
 
-  test.skip('computes the sum of an array of one number', () => {
+  test('computes the sum of an array of one number', () => {
     expect(calculator.sum([7])).toBe(7);
   });
 
-  test.skip('computes the sum of an array of two numbers', () => {
+  test('computes the sum of an array of two numbers', () => {
     expect(calculator.sum([7, 11])).toBe(18);
   });
 
-  test.skip('computes the sum of an array of many numbers', () => {
+  test('computes the sum of an array of many numbers', () => {
     expect(calculator.sum([1, 3, 5, 7, 9])).toBe(25);
   });
 });
 
 describe('multiply', () => {
-  test.skip('multiplies two numbers', () => {
+  test('multiplies two numbers', () => {
     expect(calculator.multiply([2, 4])).toBe(8);
   });
 
-  test.skip('multiplies several numbers', () => {
+  test('multiplies several numbers', () => {
     expect(calculator.multiply([2, 4, 6, 8, 10, 12, 14])).toBe(645120);
   });
 });
 
 describe('power', () => {
-  test.skip('raises one number to the power of another number', () => {
+  test('raises one number to the power of another number', () => {
     expect(calculator.power(4, 3)).toBe(64); // 4 to third power is 64
   });
 });
 
 describe('factorial', () => {
-  test.skip('computes the factorial of 0', () => {
+  test('computes the factorial of 0', () => {
     expect(calculator.factorial(0)).toBe(1); // 0! = 1
   });
 
-  test.skip('computes the factorial of 1', () => {
+  test('computes the factorial of 1', () => {
     expect(calculator.factorial(1)).toBe(1);
   });
 
-  test.skip('computes the factorial of 2', () => {
+  test('computes the factorial of 2', () => {
     expect(calculator.factorial(2)).toBe(2);
   });
 
-  test.skip('computes the factorial of 5', () => {
+  test('computes the factorial of 5', () => {
     expect(calculator.factorial(5)).toBe(120);
   });
 
-  test.skip('computes the factorial of 10', () => {
+  test('computes the factorial of 10', () => {
     expect(calculator.factorial(10)).toBe(3628800);
   });
 });