Edit in JSFiddle

var v;
var vals = [
    true, false, 0, 1, 0.0, '0', '', [], {}, null, undefined, NaN
];

$('button').on('click', function(){
    var i = $(this).data('val');
    var s = $(this).text();
    v = vals[i];
    
    $('#valView').html('「'+s+'」は');
    docching(s, v);
});


function docching(s, v){ 
    if(v){
        $('.__true').show();
        $('.__false').hide();
    } else {
        $('.__true').hide();
        $('.__false').show();
    }
}