--------------------错误日志-------------------------------------
console.log("hello world")
console.log(2,4,6,8,"foo",bar)
console.log("%a,%b","foo",bar) // "%"用于定义量
console.log("%s is %d years old.", "Bob", 42).
---------------------------简单的测试性能------------------------------
console.profile(); //性能开始
console.time("test"); //时间开始
function Test()
{
for(var i = 0; i < 10; i++)
{
console.info("this is a test");
}
}
Test();
console.timeEnd("test"); //时间结束
console.profileEnd(); // 性能结束
---------------------------------------------------------
console.trace()事件跟踪
--------------------简单的DOM-------------------------------------
console.dir(document.getElementById("selCategory"));
console.dirxml(document.getElementById("sleCategory"));