Programming/javascript

var loc="25.258861, 121.509389";
var arr=loc.split(","); 

var content = '';
for (var key in arr) {
  content += key + ' : ' + arr[key] + "\n";
}

另一個

var myarr = new Array('red','green','blue');

var content='';
for(var key in myarr){
	content += key+' : '+myarr[key]+"\n";
}

alert( content );