resolucion hasta el ejercicio 5

01_helloWorld/helloWorld.js

@@ -1,5 +1,5 @@
 const helloWorld = function() {
-  return ''
+  return 'Hello, World!';
 };
 
 module.exports = helloWorld;

02_addNumbers/addNumbers.js

@@ -4,7 +4,7 @@ function addNumbers() {
 
   let result;
 
-  result = "a" + "b"; // <------ EDIT THIS LINE
+  result = a + b; // <------ EDIT THIS LINE
 
   return result;
 }

03_numberChecker/numberChecker.js

@@ -1,5 +1,5 @@
 function numberChecker(number) {
-  if (number === 6) {
+  if (number >= 10) {
     return true;
   } else {
     return false;

04_mathEquations/mathEquations.js

@@ -1,9 +1,9 @@
 const a = 1 - 1 // Freebie!!! This is the answer to "one minus one"
-const b = "one plus eight"
-const c = "22 times three"
-const d = "the *remainder* of 5/4"
-const e = "the variable 'b' minus 17"
-const f = "the sum of the previous five variables"
+const b = 1 + 8
+const c = 22*3
+const d = 5%4
+const e = b -17
+const f = a+b+c+d+e
 
 // Do not edit below this line
 module.exports = {a, b, c, d, e, f}

05_joinStrings/joinStrings.js

@@ -8,10 +8,14 @@
 */
 
 // Add your code right below, good luck!
+let firstName = "Carlos";
+let lastName = "Stevenson";
+let thisYear = 1965;
+let birthYear = 1947;
+let fullName = firstName + " " + lastName;
+let age = thisYear - birthYear;
 
-
-
-
+let greeting = "Hello! My name is " + fullName + " and I am " + age + " years old.";
 
 // Do not change this
 module.exports = {

05_joinStrings/joinStrings.spec.js

@@ -4,25 +4,25 @@ describe('step 2', () => {
   test('firstName is Carlos', () => {
     expect(values.firstName).toEqual('Carlos');
   });
-  test.skip('lastName is Stevenson', () => {
+  test('lastName is Stevenson', () => {
     expect(values.lastName).toEqual('Stevenson');
   });
-  test.skip('thisYear is 1965', () => {
+  test('thisYear is 1965', () => {
     expect(values.thisYear).toEqual(1965);
   });
-  test.skip('birthYear is 1947', () => {
+  test('birthYear is 1947', () => {
     expect(values.birthYear).toEqual(1947);
   });
-  test.skip('greeting is properly output', () => {
+  test('greeting is properly output', () => {
     expect(values.greeting).toEqual('Hello! My name is Carlos Stevenson and I am 18 years old.');
   });
 });
 
 describe('step 3', () => {
-  test.skip('fullName is Carlos Stevenson', () => {
+  test('fullName is Carlos Stevenson', () => {
     expect(values.fullName).toEqual('Carlos Stevenson');
   });
-  test.skip('age is 18', () => {
+  test('age is 18', () => {
     expect(values.age).toEqual(18);
   });
 });

06_repeatString/repeatString.js

@@ -1,6 +1,12 @@
-const repeatString = function() {
-
-};
+function repeatString(string, num) {
+  if (num < 0) return 'ERROR';
+  if (num === 0) return '';
+  let repeatedString = '';
+  for (let i = 0; i < num; i++) {
+    repeatedString += string;
+  }
+  return repeatedString;
+}
 
 // Do not edit below this line
 module.exports = repeatString;

06_repeatString/repeatString.spec.js

@@ -4,26 +4,26 @@ 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('hello', 10)).toEqual('hellohellohellohellohellohellohellohellohellohello');
   });
-  test.skip('repeats the string 1 time', () => {
+  test('repeats the string 1 time', () => {
     expect(repeatString('hi', 1)).toEqual('hi');
   });
-  test.skip('repeats the string 0 times', () => {
+  test('repeats the string 0 times', () => {
     expect(repeatString('bye', 0)).toEqual('');
   });
-  test.skip('does not use the built-in String repeat method', () => {
+  test('does not use the built-in String repeat method', () => {
     /* Even though there is a built-in String repeat method,
       in this exercise specifically, we want you to practise using loops */
     jest.spyOn(String.prototype, 'repeat').mockName('Built-in String repeat method');
     repeatString("don't use the built-in repeat method!", 1);
     expect(String.prototype.repeat).not.toHaveBeenCalled();
   });
-  test.skip('returns ERROR with negative numbers', () => {
+  test('returns ERROR with negative numbers', () => {
     expect(repeatString('goodbye', -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
@@ -36,7 +36,7 @@ describe('repeatString', () => {
     const number = Math.floor(Math.random() * 1000);
     expect(repeatString('hey', number)).toBe('hey'.repeat(number));
   });
-  test.skip('works with blank strings', () => {
+  test('works with blank strings', () => {
     expect(repeatString('', 10)).toEqual('');
   });
 });

07_reverseString/reverseString.js

@@ -1,5 +1,10 @@
-const reverseString = function() {
-
+const reverseString = function(string) {
+    // Your code here
+    let reversed = '';
+    for (let i = string.length - 1; i >= 0; i--) {
+        reversed += string[i];
+    }
+    return reversed;
 };
 
 // Do not edit below this line

07_reverseString/reverseString.spec.js

@@ -5,16 +5,16 @@ 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! Hello, Odinite.')).toEqual(
       '.etinidO ,olleH !cba !321'
     );
   });
-  test.skip('works with blank strings', () => {
+  test('works with blank strings', () => {
     expect(reverseString('')).toEqual('');
   });
 });