I am stuck figuring out how to merge similar sub-arrays. I have concatenated arr1 and arr2, and alphabetized it. However, I can’t figure out how to merge similar sub-arrays (i.e. the two that say “Bowling Ball”) and add their quantities together. Here is what I have so far:
function updateInventory(arr1, arr2) {
var allInv=arr1.concat(arr2);
var alpha= allInv.sort(function(a, b){return b[1] < a[1];});
for (var i=0;i<alpha.length;i++){
for (var j=0;j<alpha[i].length;j++){
if (alpha[j].indexOf(alpha)){
}
}
}
}
Any suggestions?