| function inventory(arr1, arr2) { | |
| var addItems = []; | |
| var existingItems = []; | |
| var i,j; | |
| // update existing items and detect existing items | |
| for (i=0;i<arr1.length;i++){ | |
| for (j=0;j<arr2.length;j++){ | |
| if (arr1[i][1] == arr2[j][1]){ | |
| arr1[i][0] = arr1[i][0] + arr2[j][0]; | |
| existingItems.push(arr2[j][1]); | |
| } | |
| } | |
| } | |
| // detect new items to be added to inventory | |
| for (j=0;j<arr2.length;j++){ | |
| if (existingItems.indexOf(arr2[j][1]) == -1){addItems.push(arr2[j]);} | |
| } | |
| // push new items to inventory | |
| for (j=0;j<addItems.length;j++){arr1.push(addItems[j]);} | |
| // sort final arr1 | |
| arr1.sort(function(a,b){ | |
| if(a[1] < b[1]) return -1; | |
| if(a[1] > b[1]) return 1; | |
| return 0; | |
| }); | |
| return arr1; | |
| //return addItems; | |
| //return arr1InsertIndex; | |
| //return JSON.stringify(addItems); | |
| } | |
| //inventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]]); | |
| //inventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"], [6, "Zoom"]]); | |
| inventory([], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]]); |
Function compares and updates inventory stored in a 2d array against a second 2d array of a fresh delivery. It updates current inventory item quantity, and if an item cannot be found, adds the new item and quantity into the inventory array in alphabetical order.
A script by V.