How to verify whether the input is Chinese in jquery

Jquery method to verify whether the input is Chinese: 1. Numeric judgment function, returning true means all numbers, returning false means not all numbers; 2. Function to judge whether the input is Chinese.

The operating environment of this tutorial: Windows 7 system, jquery version 3.2.1. This method is suitable for all brands of computers.

Jquery method to verify whether the input is Chinese:

Example 1, function to determine whether the input is Chinese

Code example:

function ischinese(s){
    var ret=true;
    for(var i=0;i<s.length;i++)
    ret=ret && (s.charCodeAt(i)>=10000);
    return ret;
}

Example 2, Chinese judgment function, allows rare words to be replaced by English "*". Return true to indicate that the condition is met, and return false to indicate that it is not met.

Code example:

function isChinese(str){
var badChar ="ABCDEFGHIJKLMNOPQRSTUVWXYZ";
badChar += "abcdefghijklmnopqrstuvwxyz";
badChar += "0123456789";
badChar += " "+"　";//半角与全角空格
badChar += "不包含*或.的英文符号
if(""==str){
return false;
} // www.jquerycn.cn
for(var i=0;i var c = str.charAt(i);//字符串str中的字符
if(badChar.indexOf(c) > -1){
return false;
}
}
return true;
}

Example 3, digital judgment function, returns true to indicate that all numbers are, returns false to indicate that not all are numbers

Code example:

function isNumber(str){
if(""==str){
return false;
}
var reg = /\D/;
return str.match(reg)==null;
}

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