Managing unknowns 1

[CassidyHunt]

I have a web application that I can't seem to get over the hump of how to make it work.

I need to create an array of fields like this:

var fields = new Array('Qty','Description','Price','Weight');

Where the trick is is that I do not ever really know how many fields there are going to be and I need to use them to make an array of an item. Using the same example as above I would need this:

item 1
qty = 5
description = This is an item
Price = $25.00
Weight = 5lbs

Then I need to create an array of those items

group 1
item 1
qty = 5
description = This is an item
Price = $25.00
Weight = 5lbs
item 2
qty = 3
description = This is an item 2
Price = $2.00
Weight = 1lbs
group 2
item 1
qty = 5
description = This is an item
Price = $25.00
Weight = 5lbs
item 2
qty = 3
description = This is an item 2
Price = $2.00
Weight = 1lbs

Then I would need an array of the groups. I am struggling on how to make this all dynamic in javascript. I guess I do not understand how I would access the array structure.

Any ideas or direction would help.

Thanks

Cassidy

 

[BillyRayPreachersSon]

I'd start by not using array to hold the item data itself, opting for an object instead. You might want to use an array to hold all the objects, however:

function MyItem(qty, desc, price, weight) {
   this.qty = qty;
   this.description = desc;
   this.price = price;
   this.weight = weight;
}

var group1items = [];
group1items[0] = new MyItem(5, 'This is an item', 25, 5);
group1items[1] = new MyItem(3, 'This is an item 2', 2, 1);

var group2items = [];
group2items[0] = new MyItem(5, 'This is an item', 25, 5);
group2items[1] = new MyItem(3, 'This is an item 2', 2, 1);

alert(group1items[1].description);

Hope this helps,
Dan

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