jQuery get value of selected radio button

Question

The problem statement is simple. I need to see if user has selected a radio button from a radio group. Every radio button in the group share same id.

The problem is

Answer 1

multi group radio button covert value to array

var arr = [];
    function r(n) {


        var section = $('input:radio[name="' + n + '"]:checked').val();
        arr[n] = section;

        console.log(arr)
    }

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