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

javascript - jQuery .keypress & .keydown .which

Ok so what is the difference in .keypress and .keydown/.keyup? At present I am using .keydown which returns a .which value of 38 for my key, now if i change it to .keypress it returns a value of 109 for that same key. What is the difference and why are the values different for the same key?

question from:https://stackoverflow.com/questions/10191621/jquery-keypress-keydown-which

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 you press a button it fires a keydown and releasing it fires a keyup. The keypress usually comes between those two.

keydown and keyup talk about which key has been changed. keypress tells which character that key represents.

Note that this is all browser-dependent!

See this article about the differences between the key events as implemented on various browsers.


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

...