Try this, to set the focus to the first input field: $(this).parent().siblings('div.bottom').find("input.post").focus();. ... <看更多>

... the behavior of the focus method in jQuery 3.4.0 compared with 3.3.1, 2. ... the focus to the child element in focusin event of its parent. ... <看更多>

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I created a simple fiddle HERE that should outline a very simple way to do this. you don't need anything really special just because it is a ... ... <看更多>