ran standard

String/CreatePurmutations.js

@@ -1,37 +1,31 @@
-function permutations(str){
+const createPermutations = (str) => {
-
 // convert string to array
-let arr = str.split(''),
+  const arr = str.split('')
 
-// get array length 
+  // get array length
-    len = arr.length, 
+  const strLen = arr.length
-// this will hold all the permutations
+  // this will hold all the permutations
-    perms = [],
+  const perms = []
-    rest,
+  let rest
-    picked,
+  let picked
-    restPerms,
+  let restPerms
-    next;
+  let next
-    
-// if len is zero, return the same string
-    if (len === 0)
-        return [str];
-// loop to the length to get all permutations
-    for (let i=0; i<len; i++)
-    {
-        rest = Object.create(arr);
-        picked = rest.splice(i, 1);
 
-        restPerms = permutations(rest.join(''));
+  // if strLen is zero, return the same string
+  if (strLen === 0) { return [str] }
+  // loop to the length to get all permutations
+  for (let i = 0; i < strLen; i++) {
+    rest = Object.create(arr)
+    picked = rest.splice(i, 1)
 
-       for (var j=0, jLen = restPerms.length; j< jLen; j++)
+    restPerms = createPermutations(rest.join(''))
-       {
+
-           next = picked.concat(restPerms[j]);
+    for (let j = 0, jLen = restPerms.length; j < jLen; j++) {
-           perms.push(next.join(''));
+      next = picked.concat(restPerms[j])
-       }
+      perms.push(next.join(''))
     }
-   return perms;
+  }
+  return perms
 }
 
-console.log(permutations('abc')) // should print ["abc", "acb", "bac", "bca", "cab", "cba"]
+console.log(createPermutations('abc')) // should print ["abc", "acb", "bac", "bca", "cab", "cba"]
-
-