A helpful list of jQuery shortcuts + patterns

gistfile1.js

//--------------------------------------------------
// Get binary value of checkbox checked/not-checked
//--------------------------------------------------

// Seen often:
$('selector').attr('checked') ? 1 : 0;

// Alternatively:
Number($('selector').is(':checked'));

// More consise:
+$('selector').is(':checked');

//--------------------------------------------------
// Get value of checkbox if checked
//--------------------------------------------------

// Seen often:
$('selector').attr('checked') ? $(selector).val() : null;

// Alternatively:
$('selector:checked').val();