javascript 将文本附加到带有换行符的文本区域
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append text to a textarea with line breaks
提问by Afshin
I want to add some strings to a textareawhich are file basenames. Everything is fine, but the only problem is that it mixes all the values and there are not any line breaks:
我想向 a 中添加一些字符串，textarea它们是文件基名。一切都很好，但唯一的问题是它混合了所有值并且没有任何换行符：
var file_name = file.file_name;
var base = new String(file_name).substring(file_name.lastIndexOf('/') + 1);
if(base.lastIndexOf(".") != -1)
base = base.substring(0, base.lastIndexOf("."));
$('textarea#image_Basename').append(base).split('\n');
These are my file basenames:
这些是我的文件基名：
5b0cd65710052633dc5dcac406a382c4
212asaddgcvjh622sdsds22113554dfd
5sd5weea55rr6qasfdjkloijhj665s6a
But after storing the data in to the database and retrieving it, the result I get is:
但是在将数据存储到数据库中并检索它之后，我得到的结果是：
5b0cd65710052633dc5dcac406a382c4212asaddgcvjh622sdsds22113554dfd5sd5weea55rr6qasfdjkloijhj665s6a
回答by rink.attendant.6
To preserve newlines that are coming from a database or whatever, replace the newline characters with the HTML entity for a line feed: 

要保留来自数据库或其他内容的换行符，请将换行符替换为换行符的 HTML 实体： 

base = base.replace("\n", '
');
$('#image_Basename').append(base);
If you're trying to append each string with a newline at the end, just concatenate it onto the string:
如果您尝试在每个字符串的末尾附加换行符，只需将其连接到字符串上：
$('#image_Basename').append(base + '
');
Also, you're using split on the textareajQuery element, which doesn't make sense as it is an objectnot a string.
此外，您在textareajQuery 元素上使用 split ，这没有意义，因为它object不是string.
回答by Afshin
My Special thanks to @rink.attendant.6, his second method worked for me :) The answer is:
特别感谢@rink.attendant.6，他的第二种方法对我有用:) 答案是：
$('#image_Basename').append(base + '
');
After adding this, I got all the file basenames in separate lines!
添加此内容后，我将所有文件基名放在单独的行中！
