commit

Author: pathywang

Sprint-3/2-practice-tdd/count.js

@@ -1,5 +1,10 @@
 function countChar(stringOfCharacters, findCharacter) {
-  return 5
-}
+  let count = 0
+  for(let i=0;i<stringOfCharacters.length;i++ ){
+    if (stringOfCharacters[i]===findCharacter){
+      count++
+    }
+  }
+  return count}
 
 module.exports = countChar;

Sprint-3/2-practice-tdd/count.test.js

@@ -1,24 +1,17 @@
-// implement a function countChar that counts the number of times a character occurs in a string
 const countChar = require("./count");
 // Given a string `str` and a single character `char` to search for,
 // When the countChar function is called with these inputs,
-// Then it should:
+// Then it should: 
+test("should count  occurrences of a character", () => {
+  expect(countChar("tired", "d")).toEqual(1)
+})
 
-// Scenario: Multiple Occurrences
-// Given the input string `str`,
-// And a character `char` that occurs one or more times in `str` (e.g., 'a' in 'aaaaa'),
-// When the function is called with these inputs,
-// Then it should correctly count occurrences of `char`.
 
-test("should count multiple occurrences of a character", () => {
-  const str = "aaaaa";
-  const char = "a";
-  const count = countChar(str, char);
-  expect(count).toEqual(5);
-});
-
-// Scenario: No Occurrences
+// Scenario: Multiple Occurrences
 // Given the input string `str`,
 // And a character `char` that does not exist within `str`.
 // When the function is called with these inputs,
 // Then it should return 0, indicating that no occurrences of `char` were found.
+test("should count no occurrences of a character", () => {
+  expect(countChar("bananataste","w")).toEqual(0)
+})

Sprint-3/2-practice-tdd/get-ordinal-number.js

@@ -1,5 +1,20 @@
 function getOrdinalNumber(num) {
-  return "1st";
+  let lastDigit = num % 10;
+  let 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;