javascript - I want to get data-status and other data in h4. How should I write it in js code?

Reply content:

$('.operation h4').click(function(){}), so there is no need to change it.

There is a problem with your code. Your .operation is a td element, and the this returned by click should also be this element.
Minimal changes should be like this.

<code>$('.operation').click(function(){
    var el = $(this).find('h4');
    console.log(el.attr('data-status'));
});</code>

<code>$(this).find("h4").data("status")</code>