Longest word JS es6 solution

seunzone · seunzone · commit 0710098535b3 · 2017-10-30T23:12:07.000+01:00
diff --git a/longestWord.js b/longestWord.js
@@ -0,0 +1,26 @@
+// Description: For this challenge you will be determining the largest word in a string.
+
+const LongestWord = (sen) => { 
+
+  // we use the regex match function which searches the string for the
+  // pattern and returns an array of strings it finds
+  // in our case the pattern we define below returns words with
+  // only the characters a through z and 0 through 9, stripping away punctuation
+  // e.g. "hello$% ##all" becomes [hello, all]
+  let arr = sen.match(/[a-z0-9]+/gi);
+
+  // the array sort function takes a function as a parameter
+  // which is used to compare each element in the array to the
+  // next element in the array
+  let sorted = arr.sort(function(a, b) {
+    return b.length - a.length;
+  });
+
+  // this array now contains all the words in the original
+  // string but in order from longest to shortest length
+  // so we simply return the first element
+  return sorted[0];
+         
+}
+   
+console.log(LongestWord("the ##quick brown fox jumped over the lazy dog"));  
