如果附加带有发布的html的div，我如何保持换行符不变？

Question

Below and above are the 3 steps of what happens.

var newcontent = $("#commenthere").val();
alert(newcontent)
$('#commentarea').replaceWith(newcontent);

What I want is when the content is appended/replaced, whatever, that it displays

1

2

on the page instead of 1 2

I tried replacing \\n with <br> using replace , but it doesn't work as it causes syntax errors as it moves the javascript code to a new line, breaking the function.

Answer 1

设置div的样式white-space: pre应该解决这个问题。

Answer 2

This works for me:

str = str.replace( '\n', '<br>' );

Live demo: http://jsfiddle.net/QvFdy/1/

Answer 3

听起来你需要一个<pre />标签，它会格式化文本，包括所有空白区域。