在提交之前使用JavaScript / jQuery将TextArea的内容转换为纯文本

I have the following form

我有以下表格

        <form action=“/animals/living” method="POST">
            <input name=“cat” placeholder=“cat name”><br/>
            <input name=“dog” placeholder=“dog name”><br/>
            <input name=“bunny” placeholder=“bunny name”><br/>
            Description:<textarea name="description" placeholder="Description" rows="2"
                                  cols="50"></textarea>
            Documentation:<br/><textarea name="documentation" rows="8" cols="80"></textarea><br/>
            Essay:<br/> <textarea name=“essays” rows="8" cols="80"></textarea><br/>
            Passage:<br/> <textarea name=“passage” rows="8" cols="80"></textarea><br/>
            <input type="submit" value="Submit">

        </form>
        <f