pig latin code

02week/pigLatin.js

@@ -11,41 +11,81 @@ const rl = readline.createInterface({
 function pigLatin(word) {
 
   // Your code here
+  // Declare pigLatin as a function and 'str' as a placeholder for a given string
+  const pigLatin = word => {
 
-}
+    // Make a list of vowels to test each letter of str against
+    let vowels = ['a', 'e', 'i', 'o', 'u'];
 
+    // Turn the given string into an array and put it into 'result' var
+    let result = word.split('');
 
-function getPrompt() {
-  rl.question('word ', (answer) => {
-    console.log( pigLatin(answer) );
-    getPrompt();
-  });
-}
+    // If the vowels array includes the first indexed letter of str
+    if (vowels.includes(word[0])) {
 
-// Tests
+      // Return the given string with 'yay' added at the end
+      return word += 'yay';
 
-if (typeof describe === 'function') {
+      // The vowels array DOES NOT include the first indexed letter of str
+    } else {
 
-  describe('#pigLatin()', () => {
-    it('should translate a simple word', () => {
-      assert.equal(pigLatin('car'), 'arcay');
-      assert.equal(pigLatin('dog'), 'ogday');
-    });
-    it('should translate a complex word', () => {
-      assert.equal(pigLatin('create'), 'eatecray');
-      assert.equal(pigLatin('valley'), 'alleyvay');
-    });
-    it('should attach "yay" if word begins with vowel', () => {
-      assert.equal(pigLatin('egg'), 'eggyay');
-      assert.equal(pigLatin('emission'), 'emissionyay');
+      // Loop over each letter in the string given
+      for (let i = 0; i < word.length; i++) {
+
+        // Using the iterator declared above, test each letter in str
+        // If the iterator DOES NOT include a letter in the vowel array
+        if (!vowels.includes(word[i])) {
+
+          // Using str in array form, remove the first letter on the array, then add it to the end
+          result.push(result.shift());
+
+          // Once the iterator DOES match a letter in the vowel array
+        } else {
+
+          // Add 'ay' to the end of the str
+          result.push('ay');
+
+          // Turn the rearranged str (var result) back into a string and return it
+          return result.join('');
+        }
+      }
+    }
+  }
+
+
+
+
+  function getPrompt() {
+    rl.question('word ', (answer) => {
+      console.log(pigLatin(answer));
+      getPrompt();
     });
-    it('should lowercase and trim word before translation', () => {
-      assert.equal(pigLatin('HeLlO '), 'ellohay');
-      assert.equal(pigLatin(' RoCkEt'), 'ocketray');
+  }
+
+  // Tests
+
+  if (typeof describe === 'function') {
+
+    describe('#pigLatin()', () => {
+      it('should translate a simple word', () => {
+        assert.equal(pigLatin('car'), 'arcay');
+        assert.equal(pigLatin('dog'), 'ogday');
+      });
+      it('should translate a complex word', () => {
+        assert.equal(pigLatin('create'), 'eatecray');
+        assert.equal(pigLatin('valley'), 'alleyvay');
+      });
+      it('should attach "yay" if word begins with vowel', () => {
+        assert.equal(pigLatin('egg'), 'eggyay');
+        assert.equal(pigLatin('emission'), 'emissionyay');
+      });
+      it('should lowercase and trim word before translation', () => {
+        assert.equal(pigLatin('HeLlO '), 'ellohay');
+        assert.equal(pigLatin(' RoCkEt'), 'ocketray');
+      });
     });
-  });
-} else {
+  } else {
 
-  getPrompt();
+    getPrompt();
 
-}
+  }