javascript - html的textarea,提交的时候怎么去除首尾的空格?
html的textarea,提交的时候怎么去除首尾的空格?
前端js和后端php应该都可以去除吧?
怎么做呢?
需要说明的是,只去除整个textarea最开始和最后的空格,假如一段文字中间有换行,或有空格,不管它。
回复内容:
html的textarea,提交的时候怎么去除首尾的空格?
前端js和后端php应该都可以去除吧?
怎么做呢?
需要说明的是,只去除整个textarea最开始和最后的空格,假如一段文字中间有换行,或有空格,不管它。
首先,楼上很多人都说trim()了。
那么,textarea为什么首尾会有空格呢。。
不要这样:
<code><textarea rows="3" cols="20"> 内容。 </textarea> </code>
要这样:
<code><textarea rows="3" cols="20">内容</textarea></code>
使用字符串的string.trim()方法
trim()
都可以,在js中,一切皆对象,字符串也是,所以可以使用 字符串.trim()
在php中trim是一个函数,用法是trim(字符串)
可以用正则替换。但是用trim方便
var re = /^s+|s+$/g;
var str = $('#textarea').val();
var text = str.replace(re, '');

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