Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
185 views
in Technique[技术] by (71.8m points)

javascript - jQuery - Get element from array as jQuery element?

If I call

$(".myClass")

I get an array of elements. If I now want to get the first element as jquery element I would do something like this:

$($(".myClass").get(0))

So I wrap the DOM-Element, which I get from the array again with the jQuery operator. Is there a more elegant way to do this? Some get method, which returns a jQuery element for example?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Use the eq() method:

$(".myClass").eq(0)

This returns a jQuery object, whereas .get() returns a DOM element.

.eq() lets you specify the index, but if you just want the first you can use .first(), or if you just want the last you can use (surprise!) .last().

"I get an array of elements."

No you don't, you get a jQuery object which is an array-like object, not an actual array.

If you plan to use jQuery much I suggest spending half an hour browsing through the list of all methods.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

1.4m articles

1.4m replys

5 comments

56.9k users

...