How to reverse an array in Javascript?

问题

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?

回答1:

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' ]

回答2:

Use Array.reverse() method.

回答3:

function fun() {
    var c=["gh","jk","yu"];
    c.reverse();
    alert(c);
}

来源：https://stackoverflow.com/questions/9847171/how-to-reverse-an-array-in-javascript