.

04_removeFromArray/removeFromArray.js

@@ -1,5 +1,18 @@
-const removeFromArray = function() {
+// [1, 2, 3, 4], 3, 2)).toEqual([1, 4])
 
+const removeFromArray = function(arr, ...nums) {
+
+    let array = [];
+    // iterate over array
+    for (let i = 0; i<arr.length; i++){
+        // iterate over nums
+        for (let j = 0; j<nums.length; j++){
+            if(nums.includes(arr[i]) === false && array.includes(arr[i]) === false ){
+                array.push(arr[i])
+            }   
+        }
+    }
+    return array
 };
 
 // Do not edit below this line

04_removeFromArray/removeFromArray.spec.js

@@ -4,22 +4,22 @@ describe('removeFromArray', () => {
   test('removes a single value', () => {
     expect(removeFromArray([1, 2, 3, 4], 3)).toEqual([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]);
   });
 });

05_sumAll/sumAll.js

@@ -1,5 +1,32 @@
-const sumAll = function() {
+const sumAll = function(int1, int2) {
+    let intsToAdd = [int1, int2]
+    let smallNum = int1; 
+    let bigNum = int2;
+    let sum = 0;
 
+
+    for (let i = 0; i < intsToAdd.length; i++){
+        if(typeof(int1) === 'number' && typeof(int2) === 'number' && intsToAdd[i] > 0){
+            if(intsToAdd[i] >= bigNum && intsToAdd[i] >= smallNum){
+                bigNum = intsToAdd[i]
+            } else{
+                smallNum = intsToAdd[i]
+            }
+        }else {
+            return 'ERROR'
+        }
+    }
+
+    
+    for(let range = smallNum; range <= bigNum; range++){
+        sum = range + sum
+    }
+    if (sum > 0){
+        return sum
+    } else {
+        return "ERROR"
+    }
+    
 };
 
 // Do not edit below this line

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');
   });
 });

06_leapYears/leapYears.js

@@ -1,5 +1,9 @@
-const leapYears = function() {
+const leapYears = function(year) {
-
+    if(year % 400 == 0 || year % 4 == 0 && year % 100 != 0){
+        return true
+    }else{
+        return false
+    }
 };
 
 // Do not edit below this line

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);
   });
 });

07_tempConversion/tempConversion.js

@@ -1,9 +1,15 @@
-const ftoc = function() {
+const ftoc = function(tempF) {
-
+// [°C] = ([°F] − 32) × 5⁄9
+let fToC = ((tempF - 32.0) * (5/9))
+let fixed = fToC.toFixed(1)
+return parseFloat(fixed)
 };
 
-const ctof = function() {
+const ctof = function(tempC) {
-
+// [°F] = [°C] × 9⁄5 + 32
+let cToF = ((tempC * (9/5)) + 32.0)
+let fixed = cToF.toFixed(1)
+return parseFloat(fixed)
 };
 
 // Do not edit below this line

07_tempConversion/tempConversion.spec.js

@@ -4,22 +4,22 @@ describe('ftoc', () => {
   test('works', () => {
     expect(ftoc(32)).toEqual(0);
   });
-  test.skip('rounds to 1 decimal', () => {
+  test('rounds to 1 decimal', () => {
     expect(ftoc(100)).toEqual(37.8);
   });
-  test.skip('works with negatives', () => {
+  test('works with negatives', () => {
     expect(ftoc(-100)).toEqual(-73.3);
   });
 });
 
 describe('ctof', () => {
-  test.skip('works', () => {
+  test('works', () => {
     expect(ctof(0)).toEqual(32);
   });
-  test.skip('rounds to 1 decimal', () => {
+  test('rounds to 1 decimal', () => {
     expect(ctof(73.2)).toEqual(163.8);
   });
-  test.skip('works with negatives', () => {
+  test('works with negatives', () => {
     expect(ctof(-10)).toEqual(14);
   });
 });

08_calculator/calculator.js

@@ -1,25 +1,41 @@
-const add = function() {
+const add = function(x,y) {
-	
+	return x + y
 };
 
-const subtract = function() {
+const subtract = function(x,y) {
-	
+	return x - y
 };
 
-const sum = function() {
+const sum = function(nums) {
-	
+	let sum = 0;
+  nums.forEach(num => {
+    sum = num + sum
+  });
+  return sum
 };
 
-const multiply = function() {
+const multiply = function(nums) {
-
+	let result = 1;
+  nums.forEach(num => {
+    result = num * result
+  });
+  return result
 };
 
-const power = function() {
+const power = function(x , y) {
-	
+	let result = x;
+  for(i = 1; i < y; i++){
+    result = x * result
+  }
+  return result
 };
 
-const factorial = function() {
+const factorial = function(x) {
-	
+	let result = 1
+  for(let i = 1; i <= x; i++){
+    result = result * i
+  }
+  return result
 };
 
 // Do not edit below this line

08_calculator/calculator.spec.js

@@ -5,73 +5,73 @@ 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);
 	});
 });
 
 describe('sum', () => {
-	test.skip('computes the sum of an empty array', () => {
+	test('computes the sum of an empty array', () => {
 		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);
 	});
 });