JavaScript convert specified single objects into array -

i dealing json data retrieving database. if result contains single value, creates single object. if there multiple values, creates array of objects.

my issue having try , handle becomes problem when dealing loops.

example data:

// single result db var obj = {   "records": {     "recordid": 1,     "recordname": 'test'   } }  // multiple results db var obj = {   "records": [{     "recordid": 1,     "recordname": 'test'   }, {     "recordid": 2,     "recordname": 'test again'   }] } 

i have function loops on of records example , becomes problematic when have 1 result because no longer looping on array.

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due of objects being pretty large, trying come function can initialize object when database before handling it.

this function loop through of keys , check see if key exists in array of "does need array?" flags. if finds match, check see if single object , if so, convert array of single object.

here pseudo code of trying do:

// input   var obj = {      "records": {          "recordid": 1,          "recordname": 'test'      },      "photos": {          "photoid": 1,          "photoname": 'test flower'      },      "leavemealone": {          "nopeid": 1,          "nopename": 'tester'      }  }      function converttoarray(obj) {        var keystoarray = ['records', 'photos'];        // loop on keys      (var k in obj) {            // properties          if (obj.hasownproperty(k)) {                // key in our array.               if (keystoarray.indexof(k) > -1) {                    // if single object, turn array containing single object                  if (!array.isarray(obj[k])) {                      // turn value array of single object                      /* stuck here */                  }              }          }      }        /* return             var obj = {          "records": [{              "recordid": 1,              "recordname": 'test'          }],          "photos": [{              "photoid": 1,              "photoname": 'test flower'          }],          "leavemealone": {              "nopeid": 1,              "nopename": 'tester'          }      }      */    }    // run  converttoarray(obj);

you take iterative , recursive approach converting given properties array, if not array.

if keys unique, use return deleting properties of array, or changing the path depth first breadth first search.

function convert(object, keys) {      object.keys(object).foreach(function (k) {          if (object[k] && typeof object[k] === 'object') {              convert(object[k], keys);          }          if (keys.indexof(k) !== -1 && !array.isarray(object[k])) {              object[k] = [object[k]];          }      });  }    var object = { records: { recordid: 1, recordname: 'test' }, photos: { photoid: 1, photoname: 'test flower' }, leavemealone: { nopeid: 1, nopename: 'tester' }, nested: { convert: { foo: 1, bar: 2 } } },      keys = ['records', 'photos', 'convert'];    convert(object, keys);    console.log(object);

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