如何在JavaScript中删除创建的元素？

Hello I have a piece of code that allows me to add an author. I have a problem, I can't seem to delete the created node in my table This is the worst frustration in my life. I could not seem to delete it. I also have notice that every time I inspected the element I could not see the new created element from the source. But when I view it on firebug I can actually see it there.Hello I have a piece of code that allows me to