Javascript 未捕获的类型错误：无法在“节点”上执行“appendChild”：参数 1 的类型不是“节点”
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Uncaught TypeError: Failed to execute 'appendChild' on 'Node': parameter 1 is not of type 'Node'
提问by Cecil Rodriguez
var line = "<p><strong>" + name + ": </strong>" + message.field_message_body.und[0].value + "</p>";
console.log(line);
console.log(document.getElementById("messages"));
document.getElementById("messages").appendChild(line);
messages exists and it returns
消息存在并返回
<div id=messages"></div>
<div id=messages"></div>
Nothing appears to be empty, so I'm not sure why this is being thrown.
似乎没有什么是空的，所以我不确定为什么会抛出这个问题。
Does anyone have any idea why it might be throwing this error?
有谁知道为什么它可能会抛出这个错误？
回答by RK.
The linevariable you're passing isn't a Node, it's a String. Try first using
line您传递的变量不是Node，而是String。首先尝试使用
var line = document.createElement("p");
line.innerHTML = "<strong>" + name + ": </strong>" + message.field_message_body.und[0].value;
document.getElementById("messages").appendChild(line);
回答by Beroza Paul
How about this:
这个怎么样：
var line = "<p><strong>" + name + ": </strong>" + message.field_message_body.und[0].value + "</p>";
var msgHTML = document.getElementById("messages").innerHTML;
document.getElementById("messages").innerHTML = msgHTML + line;
