Zip It Array

Chapter 3 - Arrays/zipIt.js

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+// Create a standalone function that accepts two arrays and combines their values sequentially into a new array, at alternating indicies starting with first array. Extra values from either array should be included afterwards. Given [1,2] and [10,20,30,40], return new array containing [1,10,2,20,30,40].
+
+function zipIt(arr1, arr2){
+    var x = 0;
+    var zipArray = [];
+    while(x < arr1.length || x < arr2.length){
+        if(arr1[x] != undefined){
+            zipArray[zipArray.length] = arr1[x];
+        }
+        if(arr2[x] != undefined){
+            zipArray[zipArray.length] = arr2[x];
+        }
+        x++;
+    }
+    console.log(zipArray);
+}
+
+zipIt([1,2],[10,20,30,40]);