JS中判断是中文数字的函数

function checkcnnum(str) {
    var res=1;
    const zh = [‘零‘, ‘一‘, ‘二‘, ‘三‘, ‘四‘, ‘五‘, ‘六‘, ‘七‘, ‘八‘, ‘九‘,‘十‘,‘百‘,‘千‘,‘万‘];
    for (let i = str.length - 1; i >= 0; i--) {
        if(!in_array(str[i],zh)) {
            res=0;
        }
    }
    return res;
}

function in_array(search,array){
    for(var i in array){
        if(array[i]==search){
            return true;
        }
    }
    return false;
}
var str=‘一百二十一‘;
var aa=checkcnnum(str);
console.log(aa);

function checkcnnum(str) {
    var res=1;
    const zh = [‘零‘, ‘一‘, ‘二‘, ‘三‘, ‘四‘, ‘五‘, ‘六‘, ‘七‘, ‘八‘, ‘九‘,‘十‘,‘百‘,‘千‘,‘万‘,‘亿‘];
    for (let i = str.length - 1; i >= 0; i--) {
     
        //循环对比
        var ares=0;
        for(var j in zh){
            if(zh[j]==str[i]){
                ares=1;
            }
        }
        //根据对比结果判断
        if(ares==0) {
            res=0;
            return res;
        }
    }
    return res;
}
 
var str=‘1十一‘;
var aa=checkcnnum(str);
console.log(aa);