Firebug Script 调试记录
-
Your new friend, console.log //显示变量 参数
console.log, console.debug, console.info,
console.warn, console.error...
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).-
Timing and profiling // 时间及性能分析
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-
Stack traces
console.trace()
- Nested grouping
Just call
console.group("a title") to start a new indentation
block, and then console.groupEnd() to close the block. You can
create as many levels of indentation as you please.-
Object inspection // 显示对象信息
Calling console.dir(object) will log an interactive listing of
an object's properties, like a miniature version of the DOM tab.
Calling
console.dirxml(element) on any HTML or XML element will print a
lovely XML outline, like a miniature version of the HTML tab.
console.dir(document.getElementById("sleCategory"));console.dirxml(document.getElementById("sleCategory"));