How do I select a sub element when I have selected the root using an object?

Question

I want to bind to an element using jQuery and instead of...

jQuery('#' + obj.id)

I want to use...

jQuery(obj)

However then I need to get to a div nested within this element so what I want it something like...

jQuery(obj + 'div').doSomething()....

But that doesnt work. How do I sub select elements after selecting an element using the object directly?

ps (there is no id on the obj element (it doesnt exist)...

thanks

Answer 1

尝试类似的方法：

jQuery(obj).find('div')

Answer 2

jQuery("div", obj)

要么

jQuery(obj).find("div")

Answer 3

这应该工作：

jQuery('div', obj)

Answer 4

使用.find（）方法搜索后代元素：

$(obj).find('div')