Two JS to verify the expression of Zhong Wenjing

To provide two JS verification Zhong Wenjing The expression Oh, in a lot of time we need to verify that the user input is Chinese or other, so it is necessary to use JS to verify the Chinese Oh, the following two is JS validation Chinese function.

<script>
function Ischinese (temp)
{
var re =/[^u4e00-u9fa5]/;
if (re.test (temp)) return false;
return true;
}
Alert (Ischinese ("Chinese"));
</script>

Verify Chinese code two

/**
* Verify that the string is Chinese
* Return value:
* If NULL, define checksum pass, return True
* If the string is Chinese, check pass, return True
* If the string is not Chinese, return false reference message: Must be Chinese!
*/

function   Checkischinese (str)   
{  
//If the value is null, pass the checksum   
if   (str   ==   "")   
return   true;  
var    pattern   =  /^ ([u4e00-u9fa5]|[ UFE30-UFFA0]) *$/gi;  
if   (pattern.test (str))   
return   true;& nbsp; 
else  
return   false;  
}//~~~  
/**  ; 
*   calculates the length of the string, a character two characters   
*/  
string.prototype.reallength & nbsp =   function ()   
{  
return   this.replace (/[^x00-xff]/g, "* *"). length;  
}