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javascript - How to get the text of the selected option of a select using jquery?

If I have this select:

     <select id="days">
        <option value="0">Today</option>
        <option value="1">Yesterday</option>
        <option value="7">Last week</option>
     </select>

and someone selects the 3rd option 'last week', I can get the value of last week (which is 7), using $("#days").val(), but how can I get the value of the text i.e 'Last week'?

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$("#days option:selected").text()

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