/** JavaScript: mapping objects by name **/

  var jsonData = "[\n  " + [
  '{"name": "Carolus Haverbeke", "sex": "m", "born": 1832, "died": 1905, "father": "Carel Haverbeke", "mother": "Maria van Brussel"}',
  '{"name": "Emma de Milliano", "sex": "f", "born": 1876, "died": 1956, "father": "Petrus de Milliano", "mother": "Sophia van Damme"}',
  '{"name": "Maria de Rycke", "sex": "f", "born": 1683, "died": 1724, "father": "Frederik de Rycke", "mother": "Laurentia van Vlaenderen"}',
    '{"name": "Jan Haverbeke", "sex": "m", "born": 1671, "died": 1731, "father": "Lieven Haverbeke", "mother": "Elisabeth Hercke"}' ].join(",\n  ") + "\n]";
    
tstData = JSON.parse(jsonData);

function map(somedata) {
    var mapByName = {};
    somedata.forEach(mapPersonByName);
    
    function mapPersonByName(person) {
    mapByName[person.name] = person;
	 }
	 
	 return mapByName;
}

map_test = map(tstData);