Question

I have 3 arrays as displayed below. I have no control over the arrays.

groups_array = [ {
    "group" : "Mobile Test Region",
    "id" : "251"
}, {
    "group" : "Mobile Demo Region",
    "id" : "252"
} ]
locations_array = [ {
    "location" : "M Testing",
    "id" : "1376"
}, {
    "location" : "Trade Show Machine",
    "id" : "1403"
}, {
    "location" : "M Trailer",
    "id" : "1471"
}, {
    "location" : "Test Los Angeles",
    "id" : "1475"
} ]
pairs_array = [ {
    "location_id" : "1376",
    "group_id" : "251"
}, {
    "location_id" : "1475",
    "group_id" : "251"
}, {
    "location_id" : "1403",
    "group_id" : "252"
}, {
    "location_id" : "1471",
    "group_id" : "252"
} ]

Here is the code I used to loop through the pairs_array and retrieve the location_id’s that correspond with the group id. Ti.API.info(pairs_array[s].location_id); outputs 2 location ID’s based on the groupid given using e.rowData.groupid.

for (var s = 0; s < pairs_array.length; s++) {
    if (e.rowData.groupid === pairs_array[s].group_id) {
        Ti.API.info(pairs_array[s].location_id); 
    }
}

I am trying to compare the strings and retrieve the location names using the location_id’s ive gotten from the IF statement. Should I just push the results into an array and loop through the location_array and the results and compare? If so, I’d like to see a good code snippet for that since the few times I tried I was not getting the expected output.

Answer 1

for (var s = 0; s < pairs_array.length; s++) {
    if (e.rowData.groupid === pairs_array[s].group_id) {
        Ti.API.info(pairs_array[s].location_id); 

        // find location name
        for(var t = 0; t < locations_array.length; t++)
        {
            if(locations_array[t].id == pairs_array[s].location_id)
            {
                location_name = locations_array[t].location;                        
            }
        }
    }
}