coursework-3

Author: JenniferIsidienu

Sprint-3/1-key-implement/2-is-proper-fraction.js

@@ -10,8 +10,10 @@
 function isProperFraction(numerator, denominator) {
   // A proper fraction has a non-zero denominator,
   // and the absolute value of the numerator is less than the denominator.
-     if (denominator === 0) return false;
-  return Math.abs(numerator) < Math.abs(denominator);
+  if (denominator === 0) return false;
+  if (numerator < 0) numerator = -numerator;
+  if (denominator < 0) denominator = -denominator;
+  return numerator < denominator;
 
 }
 

Sprint-3/1-key-implement/3-get-card-value.js

@@ -15,7 +15,7 @@ function getCardValue(card) {
 
   // If the rank is a number between "2" and "10", return its numeric value
     if (["2", "3", "4", "5", "6", "7", "8", "9", "10"].includes(rank)) {
-        return parseInt(rank, 10); // Convert string to number
+        return Number(rank); // Convert string to number
     }
 
   // If the rank is "J", "Q", or "K", return 10

Sprint-3/2-mandatory-rewrite/1-get-angle-type.js

@@ -1,7 +1,17 @@
 function getAngleType(angle) {
-  if (angle === 90) return "Right angle";
+  if (angle === 90) { return "Right angle";
   // replace with your completed function from key-implement
-
+  } else if (angle > 0 && angle < 90) {
+    return "Acute angle";
+  } else if (angle > 90 && angle < 180) {
+    return "Obtuse angle";
+  } else if (angle === 180) {
+    return "Straight angle";
+  } else if (angle > 180 && angle < 360) {
+    return "Reflex angle";
+  } else {
+    return undefined; // For invalid angles like negative or >= 360
+  }
 }
 
 
@@ -10,7 +20,6 @@ function getAngleType(angle) {
 
 
 
-
 // Don't get bogged down in this detail
 // Jest uses CommonJS module syntax by default as it's quite old
 // We will upgrade our approach to ES6 modules in the next course module, so for now 

Sprint-3/2-mandatory-rewrite/1-get-angle-type.test.js

@@ -6,7 +6,7 @@ test("should identify right angle (90°)", () => {
 
 // REPLACE the comments with the tests
 // make your test descriptions as clear and readable as possible
-
+ 
 test("should identify acute angles (less than 90°)", () => {
   expect(getAngleType(45)).toEqual("Acute angle");
   expect(getAngleType(89)).toEqual("Acute angle");

Sprint-3/2-mandatory-rewrite/2-is-proper-fraction.js

@@ -1,6 +1,10 @@
 function isProperFraction(numerator, denominator) {
-    if (numerator < denominator) return true;
-    // add your completed function from key-implement here
+  // Check for positive values and that numerator is less than denominator
+  if (numerator > 0 && denominator > 0 && numerator < denominator) {
+    return true;
+  } else {
+    return false;
+  }
 }
 
 module.exports = isProperFraction;

Sprint-3/2-mandatory-rewrite/3-get-card-value.js

@@ -1,5 +1,15 @@
 function getCardValue(card) {
-    // replace with your code from key-implement
-    return 11;
+  if (!card || typeof card !== "string") return null;
+
+  const value = card.slice(0, -1); // Remove suit (last character)
+
+  if (value === "A") return 11;
+  if (["J", "Q", "K"].includes(value)) return 10;
+
+  const number = Number(value);
+  if (number >= 2 && number <= 10) return number;
+
+  return null; // Invalid card
 }
-module.exports = getCardValue;
+
+module.exports = getCardValue;

Sprint-3/3-mandatory-practice/implement/count.js

@@ -1,5 +1,13 @@
 function countChar(stringOfCharacters, findCharacter) {
-    return 5
+  if (!stringOfCharacters || !findCharacter) return 0;
+
+  let count = 0;
+  for (let char of stringOfCharacters) {
+    if (char === findCharacter) {
+      count++;
+    }
+  }
+  return count;
 }
 
-module.exports = countChar;
+module.exports = countChar;

Sprint-3/3-mandatory-practice/implement/get-ordinal-number.js

@@ -1,5 +1,23 @@
 function getOrdinalNumber(num) {
- return "1st";
+  if (typeof num !== "number") return null;
+
+  const lastDigit = num % 10;
+  const lastTwoDigits = num % 100;
+
+  if (lastTwoDigits >= 11 && lastTwoDigits <= 13) {
+    return `${num}th`;
+  }
+
+  switch (lastDigit) {
+    case 1:
+      return `${num}st`;
+    case 2:
+      return `${num}nd`;
+    case 3:
+      return `${num}rd`;
+    default:
+      return `${num}th`;
+  }
 }
 
-module.exports = getOrdinalNumber;
+module.exports = getOrdinalNumber;

Sprint-3/3-mandatory-practice/implement/repeat.js

@@ -1,5 +1,9 @@
-function repeat() {
-    return "hellohellohello";
+function repeat(str, count) {
+  if (typeof count !== "number" || count < 0) {
+    throw new Error("Count must be a non-negative integer");
+  }
+
+  return str.repeat(count);
 }
 
-module.exports = repeat;
+module.exports = repeat;

Sprint-3/readme.md

@@ -62,7 +62,8 @@ Recommended order:
 
 ## 🔍 4 Investigate Stretch
 
-These stretch activities are not mandatory, but we hope you will explore them after you have completed the key and mandatory work.
+These stretch activities are not mandatory, but we hope you will explore them after you have completed the key '/
+and mandatory work.
 
 In this exercise, you'll need to **play computer** with the function `find`. This function makes use of while loop statement. Your task will be to step through the code to figure out what is happening when the computer executes the code.