Longest Word In a Sentence

Author: Tittoh

README.md

@@ -13,4 +13,5 @@ Once inside, run the command below:
 4. Sentence Capitalization
 5. Palindromes
 6. Hamming Distance
+7. Longest Word In a Sentence
 

src/longestWord/index.js

@@ -0,0 +1,15 @@
+// pick a solution and insert here to run the test.
+
+
+function longestWord(text) {
+    var result = text.split(' ').reduce((maxLengthWord, currentWord) => {
+        if (currentWord.length > maxLengthWord.length) {
+            return currentWord
+        } else {
+            return maxLengthWord
+        }
+    }, "")
+    return result
+}
+
+module.exports = longestWord

src/longestWord/solutions.js

@@ -0,0 +1,40 @@
+// USING A FOR LOOP
+
+function longestWord(text) {
+    let wordArray = text.split(' ')
+    let maxLength = 0
+    let result = ''
+    for (let i = 0; i < wordArray.length; i++) {
+        if (wordArray[i].length > maxLength) {
+            maxLength = wordArray[i].length
+            result = wordArray[i]
+        }
+    }
+    return result
+}
+
+
+
+// USING .REDUCE()
+
+function longestWord(text) {
+    var result = text.split(' ').reduce((maxLengthWord, currentWord) => {
+        if (currentWord.length > maxLengthWord.length) {
+            return currentWord
+        } else {
+            return maxLengthWord
+        }
+    }, "")
+    return result
+}
+
+
+// USING .SORT()
+
+function longestWord(text) {
+
+    var sortedArray = text.split(' ')
+                          .sort((wordA, wordB) => wordB.length - wordA.length)
+
+    return sortedArray[0]
+}

src/longestWord/test.js

@@ -0,0 +1,16 @@
+const longestWord = require('./index')
+
+test('longestWord is a function', () => {
+  expect(typeof longestWord).toEqual('function');
+});
+
+test('returns the longet word in a mixed case string of text', () => {
+  expect(longestWord('Top Shelf Web Development Training on Scotch') ).toEqual('Development');
+});
+
+test('returns the longet word in a lowercase string', () => {
+  expect(longestWord('the ultimate guide to js algorithms') ).toEqual('algorithms');
+});
+test('returns the longet word in an uppercase string', () => {
+  expect(longestWord('BUILDING FOR THE NEXT BILLION USERS') ).toEqual('BUILDING');
+});