问题
First of all: I'm not much schooled with javascript. So have a problem with the appendChild method. That's my code:
var wrapper = document.getElementsByClassName('innerWrap');
var post = document.createElement('input');
post.style.position = "absolute";
post.style.top = "100px";
document.wrapper.appendChild(post);
Why doesn't it work?
Thanks in advance!
回答1:
getElementsByClassName
returns an NodeList, not a Node
So you could try var wrapper = document.getElementsByClassName('innerWrap')[0];
回答2:
Have you tried
wrapper.appendChild(post);
instead of
document.wrapper.appendChild(post);
?
来源:https://stackoverflow.com/questions/10516736/appendchild-does-not-work