jquery删除新行,然后用block元素包装textnodes [英] jquery remove new line then wrap textnodes with block element
问题描述
我有一些这样的段落:
这是第一段.r \\\\\
是第二个在\ n \\ n \\ n \\ n \\ n \\ n \\ n \\ n \\ n \ n \\ n \ n \ n之后有很多新行
而且最后一个$。
\ n \ r \ r
"This is the first para. r\r\n\n This is the second one with lot of new line after \n\n\n\n\n\n And the last para. \n\r\r"
我想删除新行并用< p>包装每个段落;
标签。我期望输出如下:
I want to remove the new lines and wrap each paragraph with the <p>
tag. I'm expecting output as follows:
<p>This is the first para.</p>
<p>This is the second one with lot of new line after</p>
<p>And the last para.</p>
推荐答案
var d = "line 1\n\nline2\n\n\n\nline3";
$('body').append('<p>'+d.replace(/[\r\n]+(?=[^\r\n])/g,'</p><p>')+'</p>');
或许这样的事情?
如果你发现该行在开头或结尾包含任何新的行/回车,请记住在更换值之前首先在字符串上调用 .trim()
(使用这个例子, d.trim()。replace(...)
)
If you find the line contains any new lines/carriage returns at the beginning or end, remember to call a .trim()
on the string first before replacing the values (using this example, d.trim().replace(...)
)
更强大的解决方案
function p(t){
t = t.trim();
return (t.length>0?'<p>'+t.replace(/[\r\n]+/,'</p><p>')+'</p>':null);
}
document.write(p('this is a paragraph\r\nThis is another paragraph'));
PHP版本:
PHP Version:
$d = "paragraph 1\r\nparagraph 2\r\n\r\n\r\nparagraph3";
echo "<p>".preg_replace('/[\r\n]+/','</p><p>',$d)."</p>";
这篇关于jquery删除新行,然后用block元素包装textnodes的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!