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
345 views
in Technique[技术] by (71.8m points)

javascript - Check if any ancestor has a class using jQuery

Is there any way in jQuery to check if any parent, grand-parent, great-grand-parent has a class.

I have a markup structure that has left me doing this sort of thing in the code:

$(elem).parent().parent().parent().parent().hasClass('left')

However, for code readability i'd like to avoid this sort of thing. Is there any way to say "any parent/grandparent/great-grand-parent has this class"?

I am using jQuery 1.7.2.

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)
if ($elem.parents('.left').length) {

}

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

...