带有类的div的jquery选择器

Question

我试过这个.我认为$("div.tab_select")[0]的返回Object 不是jQuery对象,但我甚至不能使用纯javascript方法.

有没有办法让它成为jQuery Object？例如$($("div.tab_select")[0]) ..我知道这很傻;

谢谢你的阅读.

var tmp = $("div.tab_select")[0]; 
alert(tmp); //This gives me HTMLDivElement collectly. But I can't use any of javascript..

alert(tmp.nodeName); //But this give me error "Uncaught TypeError: Cannot read property 'nodeName' of undefined"

tmp.hide(); //Neither, I can't use this.

Answer 1

// all divs with tab_select class
$('div.tab_select')

// first div with tab_select class
$('div.tab_select:first')

// or CSS pseudo selector which is slightly faster than the first jQuery 
// shortcut 
$('div.tab_select:first-of-type')

// or
$('div.tab_select').first()

// or
$('div.tab_select:eq(0)')

// or
$('div.tab_select').eq(0)