Question

i have a function call it: myFunction(A,B,C)
I have onchange event in my option select that process "myFunction(A,B,C)"

<select id='B' onchange="myFunction(userid,B,C)">

I have two radio buttons that also have an onclick event that process "myFunction(A,B,C)"

<input type=radio, id="Cyes" onclick="myFunction(userid,B,Cyes)">
<input type=radio, id="Cno" onclick="myFunction(userid,B,Cno)">

I am using ajax to process the event dynamically.

my question is, in the onclick event for the radio button, i do not want “myFunction” to process the parameter “B”

and in the onchange event for the options, i do not want “myFunction” to process the parameter “C”

i am using the same function but i only want the parameters to be processed for that particular onlick/onchange event. i want them to be ignore and i dont want any values pass to the db.

i am not sure if this is doable, but if it is, your input is much appreciated.

thanks

Answer 1

Try something like this by having arguments revert to default values if passing in null or undefined.

function myFunc (A, B, C) {
    A = A || "some default value";
    B = B || "some default value";
    C = C || "some default value";
}

// use A and B, not C:
myFunc('foo', 'bar');

// use A and C, not B:
myFunc('foo', null, 'something');

Alternatively you could pass in an object for the arguments and not worry about order:

function myFunc (argumentsObject) {
    var A = argumentsObject.a || "some default value";
    var B = argumentsObject.b || "some default value";
    var C = argumentsObject.c || "some default value";
}

// use A and B, not C:
myFunc({a: 'foo', b: 'bar'});

// use A and C, not B:
myFunc({a: 'foo', c: 'something'});