WESTMIDLANDS JAN ITP|SEGUN FOLAYAN|DATA-GROUPS|SPRINT-2

Sprint-2/debug/address.js

@@ -1,4 +1,5 @@
 // Predict and explain first...
+//The houseNumber will print out as undefined
 
 // This code should log out the houseNumber from the address object
 // but it isn't working...
@@ -12,4 +13,4 @@ const address = {
   postcode: "XYZ 123",
 };
 
-console.log(`My house number is ${address[0]}`);
+console.log(`My house number is ${address.houseNumber}`);

Sprint-2/debug/author.js

@@ -1,4 +1,5 @@
 // Predict and explain first...
+//The program will not tun because author in not an
 
 // 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
@@ -11,6 +12,6 @@ const author = {
   alive: true,
 };
 
-for (const value of author) {
+for (const value of Object.values(author)) {
   console.log(value);
 }

Sprint-2/debug/recipe.js

@@ -1,4 +1,5 @@
 // Predict and explain first...
+//The programme will not print out the ingredients. To print out the ingredients we need ${recipe.ingredients.join("\n")}
 
 // This program should log out the title, how many it serves and the ingredients.
 // Each ingredient should be logged on a new line
@@ -12,4 +13,4 @@ const recipe = {
 
 console.log(`${recipe.title} serves ${recipe.serves}
   ingredients:
-${recipe}`);
+${recipe.ingredients.join("\n")}`);

Sprint-2/implement/contains.js

@@ -1,3 +1,11 @@
-function contains() {}
+
+
+function contains(obj, prop) {
+    if (typeof obj !== "object" || obj === null || Array.isArray(obj)) {
+        return false; 
+    }
+    return obj.hasOwnProperty(prop);
+}
 
 module.exports = contains;
+

Sprint-2/implement/contains.test.js

@@ -20,16 +20,27 @@ as the object doesn't contains a key of 'c'
 // Given an empty object
 // When passed to contains
 // Then it should return false
-test.todo("contains on empty object returns false");
+test("contains on empty object returns false", ()=> {
+    expect(contains({},"a")).toBe(false)
+});
 
 // Given an object with properties
 // When passed to contains with an existing property name
 // Then it should return true
+test("if existing property,should return false", ()=> {
+    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
+// Then it should return falsetest
+    test("if non-existing property,should return false", ()=> {
+        expect(contains({a: 1, b: 2}, 'c')).toBe(false)
+    });
 
 // Given invalid parameters like an array
 // When passed to contains
 // Then it should return false or throw an error
+test("if an array,should return false", ()=> {
+    expect(contains(["a", "b"], 'a')).toBe(false)
+});

Sprint-2/implement/lookup.js

@@ -1,5 +1,13 @@
-function createLookup() {
-  // implementation here
+function createLookup(countryCurrencyPairs) {
+  return countryCurrencyPairs.reduce((acc,[country,currency]) => {
+    acc[country] = currency;
+    return acc;
+}, {});
+
 }
 
 module.exports = createLookup;
+
+
+
+

Sprint-2/implement/lookup.test.js

@@ -1,9 +1,23 @@
 const createLookup = require("./lookup.js");
 
-test.todo("creates a country currency code lookup for multiple codes");
+test("creates a country currency code lookup for multiple codes", ()=> {
+  expect(createLookup([['US', 'USD'], ['CA', 'CAD']])).toEqual({
+    'US': 'USD',
+    'CA': 'CAD'
+  });
+});
 
 /*
 
+test("creates a country currency code lookup for multiple codes", () => {
+  expect(createLookup([['US', 'USD'], ['CA', 'CAD']])).toEqual({
+    'US': 'USD',
+    'CA': 'CAD'
+  });
+});
+
+
+
 Create a lookup object of key value pairs from an array of code pairs
 
 Acceptance Criteria: