If I have an array like :
var myArray = [5, 0, 2, 8, 11, 1000, 50];
Can I sort it to get an array or numbers from the biggest number to the lowest one?, like this :
// [1000, 50, 11, 8, 5, 2, 0]
-
1I believe you didn't try searching it. There are so many resources talking about this.Alvin Wong– Alvin Wong2012-07-31 08:56:50 +00:00Commented Jul 31, 2012 at 8:56
Add a comment
|
6 Answers
//Sort alphabetically and ascending:
var myArray = [5, 0, 2, 8, 11, 1000, 50];
myarray.sort();
//Sort alphabetically and descending:
var myArray = [5, 0, 2, 8, 11, 1000, 50];
myarray.sort();
myarray.reverse();
// Sort numerically decending order:
myArray = myArray.sort(function(a, b) {return b - a;});
5 Comments
John
original array : 1, 2, 3, 4, 5, ... 30.. after.sort and reverse() => 9,8,7,6,5,4,30,3,29,27,26,25,24...10,1
irrelephant
Notice that it's comparing the values lexicographically.
SpaceBeers
Yes just noticed this. Answer amended. Thanks.
John
Thanks, with the : sort(function(a, b) { return b-a }), it gives the right result.
SpaceBeers
@John - Cool. Sorry for initial mix up. I got excited that I knew this one and didn't fully think it over.
you can try this:
var myArray = [5, 0, 2, 8, 11, 1000, 50];
myArray.sort(function(a, b) {
return b - a;
});
as suggested here: http://www.w3schools.com/jsref/jsref_sort.asp
Comments
Yes by using reverse method. Sort method would sort it in ascending order.
var myArray = [5, 0, 2, 8, 11, 1000, 50];
myArray.reverse();
For more operation on Array, look at this link
1 Comment
Matteo Tassinari
this would produce the array
[50, 1000, 11, 8, 2, 0, 5], so not what he asked for. I think you're missing a call to sort, it should be myArray.sort().reverse()You can use the sort() function. See https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/sort
Note that the default behaviour of sort() is alphabetically ascending. To sort in numerical descending order you will need to pass a compare function, e.g.
var myArray = [5, 0, 2, 8, 11, 1000, 50];
myArray.sort(function(a,b){return b-a});
Comments
try this is simple :
myArray.sort()
This should do it:
myarray.sort(function(a,b){return b - a})
Comments
