jquery $.trim () Method Usage Introduction

Source: Internet
Author: User

The role of $.trim (str) is to remove the string and the end of the space, the following for you to describe its specific use


$.trim (str)  

return: string; 

Description: Remove the string and the trailing blanks.  

example:  

First look at the error code error code:  


The code is as follows:


<input type= "text" name= "id=" Results "value=" "/>

var content = $ (' #content '). Val ();
if (content.trim () = = ")
Alert (' empty ');


The above wording in Firefox will not error, but in IE will error

So write to the following format:

Copy the Code code as follows:


<input type= "text" name= "id=" Results "value=" "/>

var content = $ (' #results '). Val ();
if ($.trim (content) = = ")
Alert (' empty ');


Or

Copy the Code code as follows:


var content = $ (' #content '). Val ();
if (jquery.trim (content) = = ")
Alert (' empty ');



jquery $.trim () Method Usage Introduction

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.