From 509f4d7947600cd1c1d3c8673bd0b0fb5d968b16 Mon Sep 17 00:00:00 2001
From: Andrew Chamamme <mastys100@gmail.com>
Date: Mon, 29 Nov 2021 00:18:43 +0000
Subject: [PATCH] oneAway. simple and efficient

---
 chapter01/1.5 - OneAway/oneAway.js | 72 ++++++------------------------
 1 file changed, 13 insertions(+), 59 deletions(-)

diff --git a/chapter01/1.5 - OneAway/oneAway.js b/chapter01/1.5 - OneAway/oneAway.js
index 1e66a89..d0b7ab8 100644
--- a/chapter01/1.5 - OneAway/oneAway.js	
+++ b/chapter01/1.5 - OneAway/oneAway.js	
@@ -1,64 +1,18 @@
-var oneAway = function(string1, string2) {
-  // insert a char for str1 -> remove a char for str2
-  var checkOneMissing = function(first, second) {
-    if (first.length !== second.length - 1) {
-      return false;
-    } else {
-      var mulligan = false;
-      var fP = 0; // first Pointer
-      var sP = 0; // second Pointer
-      while (fP < first.length) {
-        if (first[fP] !== second[sP]) {
-          if (mulligan) {
-            return false;
-          } else {
-            mulligan = true;
-            sP++; // second length is longer
-          }
-        } else {
-          fP++;
-          sP++;
+function oneAway(str1,str2){
+    str1 = str1.split("");
+    str2 = str2.split("");
+    let changes = 0;
+    for(let i = 0; i< str1.length; i++){
+        const charIndex =  str2.indexOf(str1[i]);
+        if(charIndex == -1){
+            changes +=1;
+        }else{
+             str2.splice(charIndex,1)
         }
-      }
-      return true;
     }
-  };
-
-  var checkOneDiff = function(first, second) {
-    if (first.length !== second.length) {
-      return false;
-    } else {
-      var mulligan = false;
-      var fP = 0; // first Pointer
-      var sP = 0; // second Pointer
-      while (fP < first.length) {
-        if (first[fP] !== second[sP]) {
-          if (mulligan) {
-            return false; // more than one mismatch
-          } else {
-            mulligan = true; // use up mulligan
-          }
-        }
-        fP++;
-        sP++;
-      }
-      return true;
-    }
-  };
-  // insert a char for str1 -> remove a char for str2
-  // check one diff
-
-  // console log checks
-  // console.log(string1, string2, 'checkMiss', checkOneMissing(string1, string2));
-  // console.log(string2, string1, 'checkMiss', checkOneMissing(string2, string1));
-  // console.log(string1, string2, 'checkDiff', checkOneDiff(string1, string2));
-
-  return checkOneMissing(string1, string2) || checkOneMissing(string2, string1) || checkOneDiff(string1, string2);
-};
-
-
-// Test
+    return changes <= 1;
+}
 console.log(oneAway('pale', 'ple'), true);
 console.log(oneAway('pales', 'pale'), true);
 console.log(oneAway('pale', 'bale'), true);
-console.log(oneAway('pale', 'bake'), false);
\ No newline at end of file
+console.log(oneAway('pale', 'bake'), false);