From 653f0185d757bb84f57f0d8788d61d9d3951430a Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 10:55:49 +0000
Subject: [PATCH 01/30] Added in prediction.

---
 Sprint-2/debug/address.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-2/debug/address.js b/Sprint-2/debug/address.js
index 940a6af83..960491830 100644
--- a/Sprint-2/debug/address.js
+++ b/Sprint-2/debug/address.js
@@ -1,5 +1,5 @@
 // Predict and explain first...
-
+// it returns undefined as it can't find 0 because this is an object its iterating with and not an array
 // This code should log out the houseNumber from the address object
 // but it isn't working...
 // Fix anything that isn't working

From 4a888c99f00a6de812c1ce5c88526a5525fc8d87 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 11:01:20 +0000
Subject: [PATCH 02/30] fixed the error of [0] to ["houseNumber"], i think I
 can also use ${address.houseNumber} not sure which is best to use.

---
 Sprint-2/debug/address.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-2/debug/address.js b/Sprint-2/debug/address.js
index 960491830..3514c69e5 100644
--- a/Sprint-2/debug/address.js
+++ b/Sprint-2/debug/address.js
@@ -12,4 +12,4 @@ const address = {
   postcode: "XYZ 123",
 };
 
-console.log(`My house number is ${address[0]}`);
+console.log(`My house number is ${address["houseNumber"]}`);

From 809ccc7d7fadd35da629f1b3319ab477a909e63d Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 11:13:49 +0000
Subject: [PATCH 03/30] done the prediction

---
 Sprint-2/debug/author.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Sprint-2/debug/author.js b/Sprint-2/debug/author.js
index 8c2125977..787a8da23 100644
--- a/Sprint-2/debug/author.js
+++ b/Sprint-2/debug/author.js
@@ -1,5 +1,6 @@
 // Predict and explain first...
-
+// value is undefined, its not seen in the code at all.
+// Ah error said it is not iterable, i didnt spot the for...of loop there, so its not seeing the value as an option in the object.
 // This program attempts to log out all the property values in the object.
 // But it isn't working. Explain why first and then fix the problem
 

From b8b4cc07a56dce76a80665a191cd9f164e1765a8 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 11:14:37 +0000
Subject: [PATCH 04/30] fixed the for...loop

---
 Sprint-2/debug/author.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-2/debug/author.js b/Sprint-2/debug/author.js
index 787a8da23..59cef7b77 100644
--- a/Sprint-2/debug/author.js
+++ b/Sprint-2/debug/author.js
@@ -12,6 +12,6 @@ const author = {
   alive: true,
 };
 
-for (const value of author) {
+for (const value of Object.values(author)) {
   console.log(value);
 }

From fe145bf05133ab754e1dd09aae059d332efc96fa Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 11:20:20 +0000
Subject: [PATCH 05/30] done predictions

---
 Sprint-2/debug/recipe.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Sprint-2/debug/recipe.js b/Sprint-2/debug/recipe.js
index 6cbdd22cd..e6c9fbbcb 100644
--- a/Sprint-2/debug/recipe.js
+++ b/Sprint-2/debug/recipe.js
@@ -1,5 +1,6 @@
 // Predict and explain first...
-
+// it does not make a new line as just pressing enter wont work for that.
+// I was wrong, ingredients is showing [object Object], as it wont log out a full object like this.
 // This program should log out the title, how many it serves and the ingredients.
 // Each ingredient should be logged on a new line
 // How can you fix it?

From 39104370555675fa3a7503420d3736d9dc51a271 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 11:25:19 +0000
Subject: [PATCH 06/30] Fixed the code and using \n for the new lines.

---
 Sprint-2/debug/recipe.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-2/debug/recipe.js b/Sprint-2/debug/recipe.js
index e6c9fbbcb..fc82e33e4 100644
--- a/Sprint-2/debug/recipe.js
+++ b/Sprint-2/debug/recipe.js
@@ -13,4 +13,4 @@ const recipe = {
 
 console.log(`${recipe.title} serves ${recipe.serves}
   ingredients:
-${recipe}`);
+${recipe.ingredients.join("\n")}`);

From 69ec2cbaa34b4b809edd4ca30e6d1360ee17b974 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 11:47:15 +0000
Subject: [PATCH 07/30] building code, start with thrown error.

---
 Sprint-2/implement/contains.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Sprint-2/implement/contains.js b/Sprint-2/implement/contains.js
index cd779308a..0748a8df2 100644
--- a/Sprint-2/implement/contains.js
+++ b/Sprint-2/implement/contains.js
@@ -1,3 +1,8 @@
-function contains() {}
+function contains(object, property) {
+    if (!Array.isArray(object)) {
+        toThrow new Error("contains requires an object")
+    }
+    
+};
 
 module.exports = contains;

From a1b225a967b495ec797e5e57883de8a8894d9f2d Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 11:48:28 +0000
Subject: [PATCH 08/30] fixing errors

---
 Sprint-2/implement/contains.js | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/Sprint-2/implement/contains.js b/Sprint-2/implement/contains.js
index 0748a8df2..c396495c2 100644
--- a/Sprint-2/implement/contains.js
+++ b/Sprint-2/implement/contains.js
@@ -1,8 +1,7 @@
 function contains(object, property) {
-    if (!Array.isArray(object)) {
-        toThrow new Error("contains requires an object")
-    }
-    
-};
+  if (Array.isArray(object)) {
+    throw new Error("contains requires an object");
+  }
+}
 
 module.exports = contains;

From 3ae2c2ab906a5bfb270efa419e3c6e3f2bfd6edb Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 11:53:56 +0000
Subject: [PATCH 09/30] built test for checking true for object contains
 property

---
 Sprint-2/implement/contains.test.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Sprint-2/implement/contains.test.js b/Sprint-2/implement/contains.test.js
index 719272787..435c01798 100644
--- a/Sprint-2/implement/contains.test.js
+++ b/Sprint-2/implement/contains.test.js
@@ -19,6 +19,10 @@ as an array isn't an object
 // Given a contains function
 // When passed an object and a property name
 // Then it should return true if the object contains the property, false otherwise
+test("When passed an object and a property name returns true", () => {
+  expect(contains({ a: 1, b: 2 }, "a")).toBe(true);
+  // Check the expected result
+});
 
 // Given an empty object
 // When passed to contains

From 8231232a034b902249e4a6f031fe8ee01846710d Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 12:05:22 +0000
Subject: [PATCH 10/30] added in a true or false using "in"

---
 Sprint-2/implement/contains.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Sprint-2/implement/contains.js b/Sprint-2/implement/contains.js
index c396495c2..1efb69e87 100644
--- a/Sprint-2/implement/contains.js
+++ b/Sprint-2/implement/contains.js
@@ -2,6 +2,7 @@ function contains(object, property) {
   if (Array.isArray(object)) {
     throw new Error("contains requires an object");
   }
+  return property in object;
 }
 
 module.exports = contains;

From cfaf2b534ecabe23cec00ff79314aae54eab801c Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 12:06:46 +0000
Subject: [PATCH 11/30] removed unneeded comments

---
 Sprint-2/implement/contains.test.js | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Sprint-2/implement/contains.test.js b/Sprint-2/implement/contains.test.js
index 435c01798..3e65bbbe8 100644
--- a/Sprint-2/implement/contains.test.js
+++ b/Sprint-2/implement/contains.test.js
@@ -21,7 +21,6 @@ as an array isn't an object
 // Then it should return true if the object contains the property, false otherwise
 test("When passed an object and a property name returns true", () => {
   expect(contains({ a: 1, b: 2 }, "a")).toBe(true);
-  // Check the expected result
 });
 
 // Given an empty object

From 5a1735e8fc08a1ecfcb0a15ec340f416c2bee354 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 12:10:48 +0000
Subject: [PATCH 12/30] added test for non-existent property name

---
 Sprint-2/implement/contains.test.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Sprint-2/implement/contains.test.js b/Sprint-2/implement/contains.test.js
index 3e65bbbe8..260f696ae 100644
--- a/Sprint-2/implement/contains.test.js
+++ b/Sprint-2/implement/contains.test.js
@@ -19,7 +19,7 @@ as an array isn't an object
 // Given a contains function
 // When passed an object and a property name
 // Then it should return true if the object contains the property, false otherwise
-test("When passed an object and a property name returns true", () => {
+test("When passed an object and a property name, returns true", () => {
   expect(contains({ a: 1, b: 2 }, "a")).toBe(true);
 });
 
@@ -31,10 +31,16 @@ test.todo("contains on empty object returns false");
 // Given an object with properties
 // When passed to contains with an existing property name
 // Then it should return true
+test("Given an object with properties, returns true", () => {
+  expect(contains({ a: 1, b: 2 }, "a")).toBe(true);
+});
 
 // Given an object with properties
 // When passed to contains with a non-existent property name
 // Then it should return false
+test("Given an object with a non-existent property name, returns false", () => {
+  expect(contains({ a: 1, b: 2 }, "c")).toBe(false);
+});
 
 // Given a value that isn't an object - an array, a string, a number,
 // null, or no argument at all

From f411077db5656522cd95b5ab940d8364c8c661b8 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 12:14:31 +0000
Subject: [PATCH 13/30] test for empty object

---
 Sprint-2/implement/contains.test.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Sprint-2/implement/contains.test.js b/Sprint-2/implement/contains.test.js
index 260f696ae..1aef7c6e6 100644
--- a/Sprint-2/implement/contains.test.js
+++ b/Sprint-2/implement/contains.test.js
@@ -26,7 +26,9 @@ test("When passed an object and a property name, returns true", () => {
 // Given an empty object
 // When passed to contains
 // Then it should return false
-test.todo("contains on empty object returns false");
+test("Given an empty object, returns false", () => {
+  expect(contains({}, "a")).toBe(false);
+});
 
 // Given an object with properties
 // When passed to contains with an existing property name

From e0082d84f095ebb974de3028b171a1cf2a1936a2 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 12:21:51 +0000
Subject: [PATCH 14/30] added in final test for throwing error for not
 containing object

---
 Sprint-2/implement/contains.test.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Sprint-2/implement/contains.test.js b/Sprint-2/implement/contains.test.js
index 1aef7c6e6..2dfa7b9fa 100644
--- a/Sprint-2/implement/contains.test.js
+++ b/Sprint-2/implement/contains.test.js
@@ -49,3 +49,6 @@ test("Given an object with a non-existent property name, returns false", () => {
 // When passed to contains
 // Then it should throw Error("contains requires an object")
 // (careful: typeof [] and typeof null are both "object")
+test("Given an array, throws an error 'contains requires an object'", () => {
+  expect(() => contains([])).toThrow("contains requires an object");
+});

From e07a5358a746da788a8472fac7b932c7cc432fce Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 16:33:25 +0000
Subject: [PATCH 15/30] Added in test required and fixed errors in code

---
 Sprint-2/implement/lookup.js      |  5 +++--
 Sprint-2/implement/lookup.test.js | 13 ++++++++++++-
 2 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/Sprint-2/implement/lookup.js b/Sprint-2/implement/lookup.js
index a6746e07f..3f57a59f1 100644
--- a/Sprint-2/implement/lookup.js
+++ b/Sprint-2/implement/lookup.js
@@ -1,5 +1,6 @@
-function createLookup() {
-  // implementation here
+function createLookup(countryCurrencyPairs) {
+  const lookup = Object.fromEntries(countryCurrencyPairs);
+  return lookup;
 }
 
 module.exports = createLookup;
diff --git a/Sprint-2/implement/lookup.test.js b/Sprint-2/implement/lookup.test.js
index 547e06c5a..7c597b17e 100644
--- a/Sprint-2/implement/lookup.test.js
+++ b/Sprint-2/implement/lookup.test.js
@@ -1,6 +1,6 @@
 const createLookup = require("./lookup.js");
 
-test.todo("creates a country currency code lookup for multiple codes");
+// test.todo("creates a country currency code lookup for multiple codes");
 
 /*
 
@@ -33,3 +33,14 @@ It should return:
    'CA': 'CAD'
  }
 */
+test("Given an array of arrays representing country code and currency code pairs should return in object", () => {
+  expect(
+    createLookup([
+      ["US", "USD"],
+      ["CA", "CAD"],
+    ])
+  ).toEqual({
+    US: "USD",
+    CA: "CAD",
+  });
+});

From 781d48ea44b565c2867aa2dd39d347d16164177d Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 16:57:40 +0000
Subject: [PATCH 16/30] done code for tally, need to look into it more.

---
 Sprint-2/implement/tally.js | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/Sprint-2/implement/tally.js b/Sprint-2/implement/tally.js
index f47321812..bfefc5503 100644
--- a/Sprint-2/implement/tally.js
+++ b/Sprint-2/implement/tally.js
@@ -1,3 +1,14 @@
-function tally() {}
+function tally(array) {
+  const lookup = {};
+
+  for (const item of array) {
+    if (lookup[item]) {
+      lookup[item] += 1;
+    } else {
+      lookup[item] = 1;
+    }
+  }
+  return lookup;
+}
 
 module.exports = tally;

From 47dcb5d42d0f1496f9292857a37f1e03c3e092d2 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 17:02:42 +0000
Subject: [PATCH 17/30] started with testing, done the first on with just one a

---
 Sprint-2/implement/tally.test.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Sprint-2/implement/tally.test.js b/Sprint-2/implement/tally.test.js
index ca763c296..710647447 100644
--- a/Sprint-2/implement/tally.test.js
+++ b/Sprint-2/implement/tally.test.js
@@ -19,6 +19,9 @@ const tally = require("./tally.js");
 // Given a function called tally
 // When passed an array of items
 // Then it should return an object containing the count for each unique item
+test("When passed an array of items should return object containing count for each", () => {
+  expect(tally(["a"])).toEqual({ a: 1 });
+});
 
 // Given an empty array
 // When passed to tally

From 0cd4ffe78cda2c54375a811f0e1806ed92597974 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 17:03:38 +0000
Subject: [PATCH 18/30] tested empty array

---
 Sprint-2/implement/tally.test.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Sprint-2/implement/tally.test.js b/Sprint-2/implement/tally.test.js
index 710647447..983359a01 100644
--- a/Sprint-2/implement/tally.test.js
+++ b/Sprint-2/implement/tally.test.js
@@ -27,6 +27,9 @@ test("When passed an array of items should return object containing count for ea
 // When passed to tally
 // Then it should return an empty object
 test.todo("tally on an empty array returns an empty object");
+test("When passed an empty array should return empty object", () => {
+  expect(tally([])).toEqual({});
+});
 
 // Given an array with duplicate items
 // When passed to tally

From 7747e05ccf525b771bfb3eec41ec55c11df1c390 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 17:04:38 +0000
Subject: [PATCH 19/30] test for duplicate items.

---
 Sprint-2/implement/tally.test.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Sprint-2/implement/tally.test.js b/Sprint-2/implement/tally.test.js
index 983359a01..aea5833cb 100644
--- a/Sprint-2/implement/tally.test.js
+++ b/Sprint-2/implement/tally.test.js
@@ -34,6 +34,9 @@ test("When passed an empty array should return empty object", () => {
 // Given an array with duplicate items
 // When passed to tally
 // Then it should return counts for each unique item
+test("When passed an array of duplicate items should return object containing correct count", () => {
+  expect(tally(["a", "a", "a"])).toEqual({ a: 3 });
+});
 
 // Given an invalid input like a string, a number, or no argument at all
 // When passed to tally

From fdd63d073a8e3ac10403be702270bb69e09cd3b7 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Wed, 11 Nov 2026 17:09:13 +0000
Subject: [PATCH 20/30] added in code and test for thrown error.

---
 Sprint-2/implement/tally.js      | 3 +++
 Sprint-2/implement/tally.test.js | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/Sprint-2/implement/tally.js b/Sprint-2/implement/tally.js
index bfefc5503..534f382d7 100644
--- a/Sprint-2/implement/tally.js
+++ b/Sprint-2/implement/tally.js
@@ -1,5 +1,8 @@
 function tally(array) {
   const lookup = {};
+  if (!Array.isArray(array)) {
+    throw new Error("tally requires an array");
+  }
 
   for (const item of array) {
     if (lookup[item]) {
diff --git a/Sprint-2/implement/tally.test.js b/Sprint-2/implement/tally.test.js
index aea5833cb..c4f7291af 100644
--- a/Sprint-2/implement/tally.test.js
+++ b/Sprint-2/implement/tally.test.js
@@ -41,3 +41,6 @@ test("When passed an array of duplicate items should return object containing co
 // Given an invalid input like a string, a number, or no argument at all
 // When passed to tally
 // Then it should throw Error("tally requires an array")
+test("WGiven an invalid input  should throw error 'tally requires an array'", () => {
+  expect(() => tally("im a string")).toThrow("tally requires an array");
+});

From ea97ab945a6e5f5769b36df244b4e82d360c333c Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Thu, 12 Nov 2026 11:53:58 +0000
Subject: [PATCH 21/30] fixed the code to run the first test .

---
 Sprint-2/implement/querystring.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Sprint-2/implement/querystring.js b/Sprint-2/implement/querystring.js
index 45ec4e5f3..efc087298 100644
--- a/Sprint-2/implement/querystring.js
+++ b/Sprint-2/implement/querystring.js
@@ -6,7 +6,8 @@ function parseQueryString(queryString) {
   const keyValuePairs = queryString.split("&");
 
   for (const pair of keyValuePairs) {
-    const [key, value] = pair.split("=");
+    const key = pair.split("=")[0];
+    const value = pair.split("=").slice(1).join("=");
     queryParams[key] = value;
   }
 

From 72da3ae6fc9f9b48770ab6cb9476f58a93ee69c6 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Thu, 12 Nov 2026 12:13:46 +0000
Subject: [PATCH 22/30] added in code for 2nd test and cleaned up some code.

---
 Sprint-2/implement/querystring.js | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/Sprint-2/implement/querystring.js b/Sprint-2/implement/querystring.js
index efc087298..2ce1cdfa0 100644
--- a/Sprint-2/implement/querystring.js
+++ b/Sprint-2/implement/querystring.js
@@ -6,8 +6,13 @@ function parseQueryString(queryString) {
   const keyValuePairs = queryString.split("&");
 
   for (const pair of keyValuePairs) {
-    const key = pair.split("=")[0];
-    const value = pair.split("=").slice(1).join("=");
+    if (pair === "") {
+      continue;
+    }
+    const parts = pair.split("=");
+
+    const key = parts[0];
+    const value = parts.slice(1).join("=");
     queryParams[key] = value;
   }
 

From fc2ec5940bdbaffc2ebe17bac3a250e3adc3f2b0 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Thu, 12 Nov 2026 12:23:50 +0000
Subject: [PATCH 23/30] edited code to have decodeURIComponent

---
 Sprint-2/implement/querystring.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sprint-2/implement/querystring.js b/Sprint-2/implement/querystring.js
index 2ce1cdfa0..94bb6190b 100644
--- a/Sprint-2/implement/querystring.js
+++ b/Sprint-2/implement/querystring.js
@@ -11,8 +11,8 @@ function parseQueryString(queryString) {
     }
     const parts = pair.split("=");
 
-    const key = parts[0];
-    const value = parts.slice(1).join("=");
+    const key = decodeURIComponent(parts[0]);
+    const value = decodeURIComponent(parts.slice(1).join("="));
     queryParams[key] = value;
   }
 

From ec001df410eaa595b16dbf72e33b4c89b5fe4acf Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Thu, 12 Nov 2026 12:47:31 +0000
Subject: [PATCH 24/30] all tests are working

---
 Sprint-2/implement/querystring.test.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-2/implement/querystring.test.js b/Sprint-2/implement/querystring.test.js
index 328b8df61..e9e0e9abd 100644
--- a/Sprint-2/implement/querystring.test.js
+++ b/Sprint-2/implement/querystring.test.js
@@ -3,7 +3,7 @@
 // Below are some test cases the implementation doesn't handle well.
 // Fix the implementation for these tests, and try to think of as many other edge cases as possible - write tests and fix those too.
 
-const parseQueryString = require("./querystring.js")
+const parseQueryString = require("./querystring.js");
 
 test("should parse values containing '='", () => {
   expect(parseQueryString("equation=a=b-2")).toEqual({

From 192ed3535c2589ca5e147d7cdfda8178fbbe3b64 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Thu, 12 Nov 2026 15:42:34 +0000
Subject: [PATCH 25/30] answered questions now working on code and tests for
 the tasks.

---
 Sprint-2/interpret/invert.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Sprint-2/interpret/invert.js b/Sprint-2/interpret/invert.js
index bb353fb1f..d8b128323 100644
--- a/Sprint-2/interpret/invert.js
+++ b/Sprint-2/interpret/invert.js
@@ -12,18 +12,27 @@ function invert(obj) {
   for (const [key, value] of Object.entries(obj)) {
     invertedObj.key = value;
   }
-
   return invertedObj;
 }
 
+module.exports = invert;
 // a) What is the current return value when invert is called with { a : 1 }
+// console.log(invert({ a: 1 }));
+// It is: { key: 1 }
 
 // b) What is the current return value when invert is called with { a: 1, b: 2 }
+// console.log(invert({ a: 1, b: 2 }));
+// it is: { key: 2 }
 
 // c) What is the target return value when invert is called with {a : 1, b: 2}
+// it should be : { 1: "a", 2: "b" }
 
 // c) What does Object.entries return? Why is it needed in this program?
+// it is containing each key/value pair
+// it takes an object and turns it into an array
 
 // d) Explain why the current return value is different from the target output
+// its because of "invertedObj.key = value;" each time it is running its writes
+// to the same property of "key" basically overwriting the previous one.
 
 // e) Fix the implementation of invert (and write tests to prove it's fixed!)

From 346794658842f46169fa5d958644ac7ce1778b7b Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Thu, 12 Nov 2026 15:52:19 +0000
Subject: [PATCH 26/30] fixed code and added in first test for correct invert

---
 Sprint-2/interpret/invert.js      | 2 +-
 Sprint-2/interpret/invert.test.js | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)
 create mode 100644 Sprint-2/interpret/invert.test.js

diff --git a/Sprint-2/interpret/invert.js b/Sprint-2/interpret/invert.js
index d8b128323..64b2e7dbd 100644
--- a/Sprint-2/interpret/invert.js
+++ b/Sprint-2/interpret/invert.js
@@ -10,7 +10,7 @@ function invert(obj) {
   const invertedObj = {};
 
   for (const [key, value] of Object.entries(obj)) {
-    invertedObj.key = value;
+    invertedObj[value] = key;
   }
   return invertedObj;
 }
diff --git a/Sprint-2/interpret/invert.test.js b/Sprint-2/interpret/invert.test.js
new file mode 100644
index 000000000..828e0f19a
--- /dev/null
+++ b/Sprint-2/interpret/invert.test.js
@@ -0,0 +1,5 @@
+const invert = require("./invert.js");
+
+test("Inverting original input correctly", () => {
+  expect(invert({ a: 1 })).toEqual({ 1: "a" });
+});

From 8ee667ed9f4d59ebd218a5d5374ec56577d82b83 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Thu, 12 Nov 2026 15:56:17 +0000
Subject: [PATCH 27/30] added test for 2 objects and 2 properties

---
 Sprint-2/interpret/invert.test.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Sprint-2/interpret/invert.test.js b/Sprint-2/interpret/invert.test.js
index 828e0f19a..5451164ca 100644
--- a/Sprint-2/interpret/invert.test.js
+++ b/Sprint-2/interpret/invert.test.js
@@ -1,5 +1,11 @@
 const invert = require("./invert.js");
 
+// inverting original input
 test("Inverting original input correctly", () => {
   expect(invert({ a: 1 })).toEqual({ 1: "a" });
 });
+
+// inverting original input of 2 objects and 2 properties
+test("Inverting original input correctly", () => {
+  expect(invert({ a: 1, b: 2 })).toEqual({ 1: "a", 2: "b" });
+});

From 0066a76ff822fbbb2efbd1dcd829b2a8965ac128 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Thu, 12 Nov 2026 16:01:13 +0000
Subject: [PATCH 28/30] test for empty object

---
 Sprint-2/interpret/invert.test.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Sprint-2/interpret/invert.test.js b/Sprint-2/interpret/invert.test.js
index 5451164ca..20b3e912c 100644
--- a/Sprint-2/interpret/invert.test.js
+++ b/Sprint-2/interpret/invert.test.js
@@ -9,3 +9,8 @@ test("Inverting original input correctly", () => {
 test("Inverting original input correctly", () => {
   expect(invert({ a: 1, b: 2 })).toEqual({ 1: "a", 2: "b" });
 });
+
+// inverting an empty object
+test("Inverting original input correctly", () => {
+  expect(invert({})).toEqual({});
+});

From 9a3ac64db5a79f749193b5bd59a14a0ab0a29b06 Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Thu, 12 Nov 2026 16:14:31 +0000
Subject: [PATCH 29/30] added tests for empty strings and objects

---
 Sprint-2/interpret/invert.test.js | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Sprint-2/interpret/invert.test.js b/Sprint-2/interpret/invert.test.js
index 20b3e912c..1120c981d 100644
--- a/Sprint-2/interpret/invert.test.js
+++ b/Sprint-2/interpret/invert.test.js
@@ -14,3 +14,13 @@ test("Inverting original input correctly", () => {
 test("Inverting original input correctly", () => {
   expect(invert({})).toEqual({});
 });
+
+// inverting an object with an empty string as a key
+test("Inverting original input correctly", () => {
+  expect(invert({ a: "" })).toEqual({ "": "a" });
+});
+
+// inverting an empty object with an string as a key
+test("Inverting original input correctly", () => {
+  expect(invert({ "": 1 })).toEqual({ 1: "" });
+});

From 80a82ec5875a71574bf60ab91bf015a5ee61cbeb Mon Sep 17 00:00:00 2001
From: HM-127BTY <mills.hugh@yahoo.com>
Date: Thu, 12 Nov 2026 16:21:37 +0000
Subject: [PATCH 30/30] fixed typing errors and make sure test discriptions are
 correct to tests

---
 Sprint-2/interpret/invert.test.js | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/Sprint-2/interpret/invert.test.js b/Sprint-2/interpret/invert.test.js
index 1120c981d..8b8eaaf4c 100644
--- a/Sprint-2/interpret/invert.test.js
+++ b/Sprint-2/interpret/invert.test.js
@@ -1,12 +1,12 @@
 const invert = require("./invert.js");
 
 // inverting original input
-test("Inverting original input correctly", () => {
+test("Inverting original input of 1 property", () => {
   expect(invert({ a: 1 })).toEqual({ 1: "a" });
 });
 
 // inverting original input of 2 objects and 2 properties
-test("Inverting original input correctly", () => {
+test("Inverting original input of 2 properties", () => {
   expect(invert({ a: 1, b: 2 })).toEqual({ 1: "a", 2: "b" });
 });
 
@@ -15,12 +15,17 @@ test("Inverting original input correctly", () => {
   expect(invert({})).toEqual({});
 });
 
-// inverting an object with an empty string as a key
-test("Inverting original input correctly", () => {
+// Inverting an object with an empty string as a value
+test("Inverting an object with an empty string as a value", () => {
   expect(invert({ a: "" })).toEqual({ "": "a" });
 });
 
-// inverting an empty object with an string as a key
-test("Inverting original input correctly", () => {
+// Inverting an object with an empty string as a key
+test("Inverting an object with an empty string as a key", () => {
   expect(invert({ "": 1 })).toEqual({ 1: "" });
 });
+
+// Inverting an object with multiple properties sharing the same value
+test("Inverting an object with multiple properties sharing the same value", () => {
+  expect(invert({ a: 2, b: 2, c: 2 })).toEqual({ 2: "a", 2: "b", 2: "c" });
+});