🥈 Scramblies

Author: Osman-Rasooli

scramblies.js

@@ -0,0 +1,36 @@
+// Complete the function scramble(str1, str2) that returns true if a portion of str1 characters can be rearranged to match str2, otherwise returns false.
+
+// Notes:
+
+// Only lower case letters will be used (a-z). No punctuation or digits will be included.
+// Performance needs to be considered.
+// Examples
+// scramble('rkqodlw', 'world') ==> True
+// scramble('cedewaraaossoqqyt', 'codewars') ==> True
+// scramble('katas', 'steak') ==> False
+
+function scramble(str1, str2) {  
+  let str2Obj = {}, str1Obj = {};
+  str2.split('').map(el => {
+    if(!str2Obj[el]) {
+      str2Obj[el] = 1;
+    }else {
+      str2Obj[el]++;
+    }
+  })
+  str1.split('').map(el => {
+    if(!str1Obj[el]) {
+      str1Obj[el] = 1;
+    }else {
+      str1Obj[el]++;
+    }
+  })
+  let result = '';
+  if(str1.length >= str2.length) {
+    result = Object.keys(str2Obj).map(el => {
+      if(str2Obj[el] <= str1Obj[el]) return true;
+      return false;
+    })
+  } else return false;
+  return result.every(el => el === true);
+}