jQuery的:eq()vs get() [英] jQuery : eq() vs get()

问题描述

我是jQuery的新手，我想知道jQuery的get()和eq()函数之间有什么区别.我可能会误解get()函数的作用，但是我以为我无法在同一行中的返回元素上的返回元素上调用函数，这很奇怪.

I'm new to jQuery, and I'm wondering what the difference is between jQuery's get() and eq() functions. I may misunderstand what the get() function does, but I thought it odd that I couldn't call a function on the returned on the returned element in the same line.

//Doesn't work
I.e.  $("h2").get(0).fadeIn("slow");

//Works
$("h2").eq(0).fadeIn("slow");

推荐答案

.get()和.eq()都从jQuery对象数组返回单个元素"，但是它们以不同形式返回单个元素.

.get() and .eq() both return a single "element" from a jQuery object array, but they return the single element in different forms.

.eq() 将其作为jQuery对象返回，这意味着DOM元素被包装在jQuery包装器中，这意味着它接受jQuery函数.

.eq() returns it as a jQuery object, meaning the DOM element is wrapped in the jQuery wrapper, which means that it accepts jQuery functions.

.get() 返回原始DOM元素的数组.您可以像访问原始DOM元素一样通过访问它们的属性并调用其功能来操纵它们.但是它失去了作为jQuery包装对象的身份，因此.fadeIn之类的jQuery函数将无法正常工作.

.get() returns an array of raw DOM elements. You may manipulate each of them by accessing its attributes and invoking its functions as you would on a raw DOM element. But it loses its identity as a jQuery-wrapped object, so a jQuery function like .fadeIn won't work.

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