function f(){
//請編寫一段程序,將一個對象和它直接、間接引用的所有對象的屬性字符串放入一個數組。如
//var o = {a:1,{b:2,c:{d:1}}}這裏o經過處理後,應該得到["a","b","c","d"]
var o = {a:1,b:{c:{d:1}}};//輸出 a b c d
//var o = {a:1,b:{c:2}};
alert(getProperties(o));
}
function getProperties(o){
var property = [];
for(var key in o){
property.push(key);
}
for(var key in o){
if(typeof o[key] == 'object'){
return property.concat(arguments.callee(o[key]));
}
}
return property;
}
測試結果:
測試結果: