使用 jQuery 抓取文本时如何去除空白？
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how do I strip white space when grabbing text with jQuery?
提问by Steve Perks
I'm wanting to use jQuery to wrap a mailto: anchor around an email address, but it's also grabbing the whitepace that the CMS is generating.
我想使用 jQuery 来包装一个 mailto: 围绕电子邮件地址的锚点，但它也抓住了 CMS 生成的空白。
Here's the HTML I have to work with, the script as I have it and a copy of the output.
这是我必须使用的 HTML、我拥有的脚本和输出的副本。
HTML
HTML
<div class="field field-type-text field-field-email">
<div class="field-item">
[email protected] </div>
</div>
jQuery JavaScript
jQuery JavaScript
$(document).ready(function(){
$('div.field-field-email .field-item').each(function(){
var emailAdd = $(this).text();
$(this).wrapInner('<a href="mailto:' + emailAdd + '"></a>');
});
});
Generated HTML
生成的 HTML
<div class="field field-type-text field-field-email">
<div class="field-items"><a href="mailto:%0A%20%20%20%[email protected]%20%20%20%20">
[email protected] </a></div>
</div>
Though I suspect that others reading this question might want to just strip the leading and tailing whitespace, I'm quite happy to lose all the whitespace considering it's an email address I'm wrapping.
尽管我怀疑阅读此问题的其他人可能只想删除开头和结尾的空格，但考虑到这是我要包装的电子邮件地址，我很高兴丢失所有空格。
回答by Andreas Grech
Use the replacefunction in js:
replace在js中使用函数：
var emailAdd = $(this).text().replace(/ /g,'');
That will remove all the spaces
这将删除所有空格
If you want to remove the leading and trailing whitespace only, use the jQuery $.trim method :
如果你想删除的开头和结尾的空白只使用jQuery的$ .trim方法：
var emailAdd = $.trim($(this).text());
回答by Jhankar Mahbub
Javascript has built in trim:
Javascript 已内置修剪：
str.trim()
It doesn't work in IE8. If you have to support older browsers, use Tuxmentat'sor Paul'sanswer.
回答by Tuxmentat
回答by Paul
str=str.replace(/^\s+|\s+$/g,'');
str=str.replace(/^\s+|\s+$/g,'');
