如何在jQuery中存储引用表？

Question

I am developing a simple calculator using jquery and html. To perform all the calculations needed, this calculator needs to reference a table of values formatted as follows:

Machine ID1
    6        52   5655
    7.5      55   2520
    10       60   1013

Machine ID2
    6        55    1255
    7.5      89    5655
    10       90    2020

Part of what this calculator does is it takes in a Machine ID, and it also takes in a row spacing (which can either be 6, 7.5, or 10) - ie the first column.

The second and third columns are values that are derived from the machine and row spacing.

My original plan was to create this calculator solely in jquery and HTML, but I am having a very difficult time figuring out how to implement this reference table in a data structure. These values in the reference table will not change, so I have no problem hard coding them into javascript.

I am aware I could use a database with the MachineID and the RowSpacing as the primary keys, but I feel like creating a new database with a single table that just contains the above info is overkill. What options do I have for storing the above data in jQuery that will allow me to query and pull the values?

I have investigated using jQuery's data functionality, but that seems to be more towards tying data to individual DOM elements, and I don't think that helps me much. Am I wrong? How can I make this work without a database?

Answer 1

If these are static values, I think you'll be best served by storing them in a JSON object, like this:

var ID1 = {
    6 : {
        "value1": 52,
        "value2": 5655
    },
    7.5 : {
        "value1": 55,
        "value2": 2520
    },
    10 : {
        "value1": 60,
        "value2": 1013
    }
}

var ID2 = {
    6 : {
        "value1": 55,
        "value2": 1255
    },
    7.5 : {
        "value1": 89,
        "value2": 5655
    },
    10 : {
        "value1": 90,
        "value2": 2020
    }
}

This way, if you needed to refer to the machine name ID2 , where row spacing is 10 , and get the second of your two values, you'd do it as follows:

Result = ID2[10]["value2"];