How to varify a username if it's already existed with semantic-ui validation and semantic-ui api?

[Kuma Chow]

to varify a input username, use semantic-ui validation and semantic-ui api, or custome a validation rules by ajax????

[Kuma Chow]

code is here:

$.fn.form.settings.rules["checkUsername"] = function(value) {
    var url = "/Index/checkUsername";
    var res = true;
    $.ajax({
        async : false,
        url : url,
        type : "POST",
        data : {
            username : value
        },
        dataType: "json",
        success: function(data){
            if(data['code']==1){
                res = false;
            }else {
                res = true;
            }

            console.log(res);
            return res;
        }
    });
};

var validation = {
    username : {
        identifier : 'username',
        rules : [
            { type : 'empty', prompt : 'Please enter your email' },
            { type : 'checkUsername', prompt : 'Username already existed' }
        ]
    }
};

It did not work, but the console log is right.

[Vishnu Gupta]

$.fn.form.settings.rules["checkUsername"] = function(value) {
    var url = "/Index/checkUsername";
    var res = true;
    $.ajax({
        async : false,
        url : url,
        type : "POST",
        data : {
            username : value
        },
        dataType: "json",
        success: function(data){
            if(data['code']==1

){
                value = 0;
            }else {
                value = 1;
            }

            console.log(res);
           return (value == 1 )? true : false;

        }
    });
};

var validation = {
    username : {
        identifier : 'username',
        rules : [
            { type : 'empty', prompt : 'Please enter your email' },

            { type : 'checkUsername[value]', prompt : 'Username already existed' }
        ]
    }
};