complete 2-practice-tdd/count task

Author: XiaoQuark

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

@@ -1,5 +1,9 @@
 function countChar(stringOfCharacters, findCharacter) {
-  return 5
+  const charRegex = new RegExp(findCharacter, "g");
+  console.log(charRegex, typeof charRegex, "regex");
+  const charArr = [...stringOfCharacters.matchAll(charRegex)];
+  console.log(charArr, "array");
+  return charArr.length;
 }
 
 module.exports = countChar;

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

@@ -22,3 +22,10 @@ test("should count multiple occurrences of a character", () => {
 // 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 0 occurrences of a character", () => {
+  const str = "dog";
+  const char = "a";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+});