bbb[kk] = new Array(); -----》 bbb[kk] = bbb[kk] || new Array();
var dataArray = new Array(2000, 5000, 6000, 7000,9000);
var result = new Array(); for ( var r = 0; r < dataArray.length; r++) { var seed = Math.floor(dataArray[r]/4000); result[seed] || (result[seed]=[]); result[seed].push(dataArray[r]); }
-----》
bbb[kk] = bbb[kk] || new Array();
var result = new Array();
for ( var r = 0; r < dataArray.length; r++) {
var seed = Math.floor(dataArray[r]/4000);
result[seed] || (result[seed]=[]);
result[seed].push(dataArray[r]);
}
var $a = result;