输出JavaScript对象的内部结构常常做调试用.
一个输出所有对象属性的例子如下：
Javascript代码 收藏代码
function dump_obj(myObject) {
var s = “”;
for (var property in myObject) {
s = s + “\n “+property +”: ” + myObject[property] ;
}
alert(s);
}
以上代码有些简陋，看个完善些的
Javascript代码 收藏代码
<script language=”javascript”>
var MAX_DUMP_DEPTH = 10;
function dumpObj(obj, name, indent, depth) {
if (depth > MAX_DUMP_DEPTH) {
return indent + name + “: <Maximum Depth Reached>\n”;
}
if (typeof obj == “object”) {
var child = null;
var output = indent + name + “\n”;
indent += “\t”;
for (var item in obj) {
try {
child = obj[item];
} catch (e) {
child = “<Unable to Evaluate>”;
}
if (typeof child == “object”) {
output += dumpObj(child, item, indent, depth + 1);
} else {
output += indent + item + “: ” + child + “\n”;
}
}
return output;
} else {
return obj;
}
}
</script>