jQuery select an anchor inside div with numeric id attribute

How to select all the 'a' element's id inside a div tag with id开发者_Python百科 "12"?

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Technically you can't have an ID starting with a number (until HTML5, anyways), but this should work:

$("#12 > a")

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var linkIDs = $('#12 a').map(function(link) {
    return link.id;
}).get();