done

02_repeatString/repeatString.js

@@ -1,9 +1,15 @@
 const repeatString = function(string, num) {
     let newString = '';
 
-    for (i = 0; i < num; i++) {
+    if (num >= 0) {
-        newString += string; 
+        for (i = 0; i < num; i++) {
+            newString += string; 
+        }
     } 
+    else {
+        return 'ERROR';
+    }
+
     return newString;
 };
 

02_repeatString/repeatString.spec.js

@@ -13,10 +13,10 @@ describe('repeatString', () => {
   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 randomaly 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('');
   });
 });

03_reverseString/reverseString.js

@@ -1,5 +1,9 @@
 const reverseString = function(str) {
-
+    var newString = '';
+    for (i = str.length -1; i >=0; i--) {
+        newString += str[i];
+    }
+    return newString;
 };
     
 // Do not edit below this line

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('')
   })
 });

04_removeFromArray/removeFromArray.js

@@ -1,4 +1,13 @@
 const removeFromArray = function() {
+    let array = arguments[0];
+    for (i = arguments[0].length - 1; i >= 0; i--) {
+        for (j = 1; j < arguments.length; j++) {
+            if (arguments[j] === array[i]) {
+                array.splice(i, 1);
+            }
+        }
+    }
+    return array;
 
 };
 

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/README.md

@@ -7,6 +7,7 @@ sumAll(1, 4) // returns the sum of 1 + 2 + 3 + 4 which is 10
 ```
 
 
+
 ## Hints
 
 Think about how you would do this on pen and paper and then how you might translate that process into code:

05_sumAll/sumAll.js

@@ -1,4 +1,19 @@
-const sumAll = function() {
+const sumAll = function(num1, num2) {
+    let sum = 0;
+    if (Math.sign(num1) === 1 && Math.sign(num2) === 1 && typeof(num1) === 'number' && typeof(num2) === 'number') {
+        if (num1 < num2) {
+            for (i = num1; i <= num2; i++) {          
+                sum += i;
+            }
+     }  else {
+            for (i = num2; i <= num1; i++) {
+                   sum += i;
+                }
+            }
+    } else {
+        return 'ERROR';
+      }
+    return sum;
 
 };
 

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');
   });
 });