前端验证器

调用示例及注释如下：

layui.use(["validate"],function (){
    let validate = layui.validate;

    // 待验证数据
    let data = {
        name:"小王",
        age:"29",
        mobile:"123456",
    };

    // 待验证数据对应title，为用户增强提示的可阅读性（非必选）。若设置对应规则的message提示，可为空
    let dataTitle = {
        name:"姓名",
        age:"年龄",
        mobile:"手机"
    };

    // 为验证器设置参数
    validate.rule({
        "name":"require|chs",
        "age":"require|positiveInteger|isAge:18",
        "mobile":"require|mobile",
    }).message({
        "name.require":"姓名不能为空",
        "name.chs":"姓名只能为汉字",
        "age.require":"年龄不能为空",
        "age.positiveInteger":"年龄需为正整数",
        "mobile.require":"手机不能为空",
        "mobile.mobile":"手机格式错误",
    }).scene({
        "scene1":["name","mobile"],
        "scene2":["name","age","mobile"],
    }).methods({
        // 扩展验证规则
        isAge:(value, rule = '', data={})=>{
            if(rule.length<=0) return "规则[isAge]错误";
            let maxAge = rule | 0;
            return value<=maxAge ? true : '年龄不能超过18岁';
        }
    });

    // 验证环境scene1，只校验name、mobile
    let res1 = validate.check(data,dataTitle,"scene1");
    console.log(res1);
    console.log(validate.getError());

    // 验证全部参数，方法1
    let res2 = validate.check(data,dataTitle,"scene2");
    console.log(res2);
    console.log(validate.getError());

    // 验证全部参数，方法2
    let res3 = validate.check(data,dataTitle);
    console.log(res3);
    console.log(validate.getError());

    // 验证全部参数，当验证失败时自动弹出错误提示
    let res4 = validate.checkTips(data,dataTitle);
    console.log(res4);
    console.log(validate.getError());
});