需要帮助inArray

Question

嗨我有以下功能，我需要使其仅返回false时，其他两个复选框之一被选中。

$.validator.addMethod(
"ReutersNA", 
function(value, element) { 
    var selectedCountry = $("#Country").val(); 
    var NorthAmerica = new Array("USA","CAN","MEX"); 
    if($.inArray(selectedCountry,NorthAmerica) > -1) { 
    return true; 
    } else return false; 
    }, "Cannot select Reuters News outside of North America." 
); 

I need to add if($("#IQBAS, #IQPRE").is(":checked") && the above function = return true  

Answer 1

你的意思是这样的吗？

$.validator.addMethod( 
"ReutersNA", 
function(value, element) { 
    var selectedCountry = $("#Country").val(); 
    var NorthAmerica = new Array("USA","CAN","MEX"); 
    return ($("#IQBAS, #IQPRE").is(":checked") && $.inArray(selectedCountry,NorthAmerica) > -1); 
}, 
"Cannot select Reuters News outside of North America." 
); 

Answer 2

让我们试着成为一个小的通用...

$.validator.addMethod( 
"ReutersNA", 
function(value, element, params) { 
    var selectedCountry = value; 
    var NorthAmerica = new Array("USA","CAN","MEX"); 
    return (params && $.inArray(selectedCountry,NorthAmerica) > -1); 
}, 
"Cannot select Reuters News outside of North America." 
); 

，那么你可以使用它像

rules: { 
    Country : { 
     ReutersNA : $("#IQBAS, #IQPRE").is(":checked") 
    } 
} 

Answer 3

你的问题有点不清楚。我认为你的意思是它应该返回false（显示消息），如果它被选中并且该元素不在数组中。

$.validator.addMethod( 
"ReutersNA", 
function(value, element) { 
    var selectedCountry = $("#Country").val(); 
    var NorthAmerica = new Array("USA","CAN","MEX"); 
    // Valid (true) if neither checked, or element is found in array. 
    return !$("#IQBAS, #IQPRE").is(":checked") || $.inArray(selectedCountry,NorthAmerica) > -1); 
}, 
"Cannot select Reuters News outside of North America." 
);