how to append inventory system from item list?

Question

How to add item from items list to inventory and print it?

var items = {
    knife: {
        name: "Knife"
    }
};

var inventory = {};

//document.write(inventory....);

Or am I not understanding something and making everything wrong? maybe objects is wrong choice?

I want output just to print item name like knife. But not from var items - Print it from inventory

Everything should work like picking up item from ground.

I want output just to print item name like knife. But not from var items - Print it from inventory — user2351722, May 09 '13 at 03:44
`inventory.knife = items.knife;` then `document.write(inventory.knife.name);` ? — plalx, May 09 '13 at 03:46
Do you mean `var inventory = {}; inventory.knife = items.knife; alert(inventory.knife.name);`? — Ian, May 09 '13 at 03:46
i want to implement something like picking up item and it appears in inventory — user2351722, May 09 '13 at 03:48
@user2351722 Seriously what you're saying makes no sense. You need to explain what you want to do — Ian, May 09 '13 at 03:51

score 1 · Accepted Answer · edited May 23 '17 at 11:55

1

You are probably using the wrong data structure for your inventory, unless you want to be able to pickup a single item per kind, you should be using an array.

var inventory = []; //empty inventory

inventory.push(items.knife); //pickup a knife
inventory.push(items.knife); //pickup another knife

Loop over the inventory and alert the item names:

for (var i = 0, len = inventory.length; i < len; i++) {
    alert(inventory[i].name);
}

Please note that the objects in the inventory are references to the items.knife object. If you want to clone those objects instead, have a look at What is the most efficient way to deep clone an object in JavaScript?.

edited May 23 '17 at 11:55

Community

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answered May 09 '13 at 03:51

plalx

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yes thanks but getting error unnexpected token ) HERE : (var i = 0, len = inventory.length; i++) { – user2351722 May 09 '13 at 03:59
@user2351722, Sorry, I forgot a part to my loop construct ;) – plalx May 09 '13 at 04:00

how to append inventory system from item list?

1 Answers1