javascript - accessing to Jquery object values in a function -

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i'm doing generic function validate form items. i'm calling way:

$('#name').validate(20, 'alfanum');

next, in function i'll stuff, when try access value of object, wont work:

function validate(size, type) {     alert($(this).val()); // shouts error :( }

how can access object's value? thank in advance.

do need extend jquery's object use syntax? simpler pass object parameter

function validate(obj, size, type) {     alert(obj.val()); // shouts error :( }  validate(jquery('#name'), 20, 'alfanum');

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