问如何使用arcGis JavaScript获取地址的最大长度

EN

require(["esri/map"], function(Map) {
  var map = new Map("mapDiv"),
  map.on("click", myClickHandler);

  function myClickHandler(evt) {
    console.log(evt)
  }
});

dojo.connect(map, "onClick", mapClick);
function mapClick(evt){
     console.log(evt.mapPoint)
}

require(["esri/tasks/locator", ... 
], function(Locator, ... ) {
    var locator = new Locator("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Locators/ESRI_Geocode_USA/GeocodeServer");
    var address = {"Single Line Input": "100 main street"};
    var params = {address: address, searchExtent: map.extent};              
    locator.outSpatialReference= map.spatialReference;
    locator.addressToLocations(params).then(function(addressCandidates){
        ....
    });
});