scott

2019-1-7/script/main.js

 
 function stringZip(iStr) {
-    var arr = [];
-    var temp = {};
+    var res = "";
+    var temp = 1;
     for (var i = 0, len = iStr.length; i < len; i++) {
-        var element = iStr[i];
         if (i === 0) {
-            temp[element] = 1
-        } else if (element === iStr[i-1]) {
-            temp[element]++
+            res = len===1? "1" + iStr[i] : ""
+        } else if (iStr[i] === iStr[i-1]) {
+            temp++
         } else {
-            arr.push(temp)
-            temp = {}
-            temp[element] = 1
+            res += temp + iStr[i-1]
+            temp = 1
         }
-        if(i >= len - 1){
-            arr.push(temp)
+        if(i >= len - 1 && len > 1){
+            res += temp + iStr[i-1]
         }        
     }
-    var res = "";
-    arr.forEach(function(v){
-        for (var key in v) {
-            res += v[key] + key
-        }
-    })
     return res
 }
 
@@ -36,7 +28,9 @@ function stringUnZip(iStr) {
     return str 
 }
 
-// console.log(stringZip("aaabccccaaaaccddecccee"));
+console.log(stringZip("aaabccccaaaaccddecccee"));
+console.log(stringZip("a"));
 
 console.log(stringUnZip("3a1b6c2d3e"));
+console.log(stringUnZip("1a"));