JavaScript Learning Notes

1, Webstrom feel is very good, have their own local debugging also support to start the browser and debugging. If you have an Ajax method, you can run it.
Before, if there is an Ajax method, directly using a text editor, and then open in the browser this way is not possible, usually I will publish the Web project in Eclipse and then debug Ajax.
2, there is a reference to the document, in structure, Luo lists the API provided by ECMASCRIPT,ECMASCRIPT5. So you don't have to check the documentation every time.
In fact, I also hope that I can write a program, after execution can automatically list all the local methods.
There is also the ability to automatically pull out CSS.
3, Webstrom automatic format after the need to remove the space, or the compression of JS will become uncompressed, if it is like Chrome, there is a simulation of the format, not really add a space is good.
4. When I wrote JavaScript yesterday (Http://www.w3school.com.cn/tiy/t.asp?f=jseg_timing_stop)

 
This method of timing, timedcount can not be changed to other, I think as long as there is settimeout on it, outside the function of their own name, but is not the case. Although not very understanding, but know that should be used.
 
5, feel a bit strange when the script written in the body and written in the head there is also a difference
 
<! DOCTYPE html><!--lang:html--> 
The above JavaScript code, I write it in the body can run, but written in the head will prompt null, (Debugging on Chrome)
So what's the difference between a script and a head in the body? Is there any way to make up for it?
JavaScript Learning Notes