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

How to reverse an array in Javascript?

Some of you may know the method in Ruby that allows you to reverse an array:

arr = ['a', 'b', 'c']
puts arr.reverse

#=> ['c', 'b', 'a']

How would one write a function (or prototype if you wish) in Javascript?

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)

A quick glance at the array page in the manual shows a reverse method

> arr = ['a', 'b', 'c']; arr.reverse(); console.log(arr);
[ 'c', 'b', 'a' ]

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

...