使用JavaScript代码判断输入的字符串是否含有特殊字符和emoji表情代码实例

浅浅的花香味﹌ 2022-09-16 00:28 144阅读 0赞

### 使用JavaScript代码判断输入的字符串是否含有特殊字符和emoji表情代码实例 ###

*   *  js判断代码

## js判断代码 ##

reg = /[~#^$@%&!?%*]/gi;
    if (reg . test(postdata . Name . trim())) { 
        alert("姓名不能含有特殊字符");
    } else { 
        if (isEmojiCharacter(postdata . Name . trim())) { 
            alert("姓名不能含有表情");
        } else { 
    //自己的代码
        }
    }
    function isEmojiCharacter(substring) { 
        for (var i = 0; i < substring . length; i++) { 
            var
            hs = substring . charCodeAt(i);
            if (0xd800 <= hs && hs <= 0xdbff) { 
                if (substring . length > 1) { 
                    var
                    ls = substring . charCodeAt(i + 1);
                    var
                    uc = ((hs - 0xd800) * 0x400) + (ls - 0xdc00) + 0x10000;
                    if (0x1d000 <= uc && uc <= 0x1f77f) { 
                        return true;
                    }
                }
            } else if (substring . length > 1) { 
                var
                ls = substring . charCodeAt(i + 1);
                if (ls == 0x20e3) { 
                    return true;
                }
            } else { 
                if (0x2100 <= hs && hs <= 0x27ff) { 
                    return true;
                } else if (0x2B05 <= hs && hs <= 0x2b07) { 
                    return true;
                } else if (0x2934 <= hs && hs <= 0x2935) { 
                    return true;
                } else if (0x3297 <= hs && hs <= 0x3299) { 
                    return true;
                } else if (hs == 0xa9 || hs == 0xae || hs == 0x303d || hs == 0x3030
                    || hs == 0x2b55 || hs == 0x2b1c || hs == 0x2b1b
                    || hs == 0x2b50) { 
                    return true;
                }
            }
        }
    }