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/**
 * Returns the length of a Subform or -1 if no length can be found
 * @param  {array} s Subform element
 * @return {int}   length of the Subform, or -1
 */
function getSubformLength(s) {
   if(typeof s === "undefined" || s == null || Array.isArray(s) === false) {
      return -1;
   } else {
      return s.length;

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/**
 * search through an object and return only whitelisted keys
 * @param  {object} r         the original record
 * @param  {string} keep_list comma-separated list of keys to keep
 * @return {object}           object with only found whitelisted keys
 */
function keepKeys(r,keep_list) {
   var obj = {};
   for(var key in r) {
      if(keep_list.indexOf(key) >= 0) {

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/**
 * Function to format a date object. Used to format Date, Time, Date/Time elements
 * @param  {object} d Date, Time, Date/Time element
 * @param  {string} s Format string
 * @return {string}   Formatted Date object
 */
function formatDate(d,s) {
  if(typeof s === "undefined" || s.trim() === "") { return d.toISOString(); }

  var full_months = ["January","February","March","April","May","June","July","August","September","October","November","December"];

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function getAge(d) {
    var today = new Date();
    var age = today.getFullYear() - d.getFullYear();
    var m = today.getMonth() - d.getMonth();
    if (m < 0 || (m === 0 && today.getDate() < d.getDate())) {
        age--;
    }
    return age;
}

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/**
 * upscales an iFormBuilder/Data Collector JSON v9.0 record to v10.0
 * @param  {object} r a valid iFormBuilder/Data Collector record
 * @return {object}   record with modified metadata to match JSON v10.0
 */
function jsonV10(r) {

   function convert_dates(rec) {
      var date_keys = ["created_date", "modified_date", "server_modified_date"];
      for (var i = 0; i < date_keys.length; i++) {

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/**
 * function returns subform as 2D array
 * @param  {object}  r  valid JSON object
 * @param  {int}     n  integer greater than 1
 * @return {object}     2D array where number of objects per row is equal to n
 */
function subform_to_multi_array(r,n) {
   if(typeof n !== 'number' || n !== Math.floor(n) || n <= 1 || n > r.length) return r;
   var cols = [];
   var count = 0;

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function split_location(r,dcn) {
   if(!r.hasOwnProperty(dcn)) return r;
   var l = r[dcn];
   l = l.replace(/(\r\n|\n|\r)/gm,"");

   var location_arr = l.split(",");
   for(var i=0; i<location_arr.length; i++) {
      var kvp = location_arr[i].split(":");
      var key = kvp[0];
      var value = (key === "Time") ? value = kvp[1] + ":" + kvp[2] + ":" + kvp[3] : kvp[1];

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/**
 * Search through an object and delete any properties supplied in the list.
 * Is case-sensitive and recursive by default. Both can be toggled by passing false.
 * @param  {Object}  r                     original JS object
 * @param  {Array}   properties            list of keys/properties to remove
 * @param  {Boolean} [case_sensitive=true] set to false for case-insensitive
 * @param  {Boolean} [recursive=true]     set to true for recursive
  * @return {Object}                        modified JS object
 */
function remove_properties(r,properties,case_sensitive,recursive) {

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function full_flatten(data) {
    // Edit these two variables to change the character(s) before and after the index value
    var before_index = "_";
    var after_index = "_";
    
    // Do not edit below here
    var result = {};

    function recurse(cur, prop) {
        if (Object(cur) !== cur) {

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function remove_subforms(r) {
    // loop through and store each key
    for(var key in r) {
      // if property is a subform (array)
      if(Array.isArray(r[key])) {
        // delete the property
        delete r[key];
      }
    }