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JavaScript sort() Method
JavaScript Array Object
Definition and Usage
The sort() method sorts the elements of an array.
Note: This method changes the original array!
Syntax
| Parameter | Description |
|---|---|
| sortfunc | Optional. A function that defines the sort order |
Browser Support
The sort() method is supported in all major browsers.
Tips and Notes
Note: By default, the sort() method sorts the elements alphabetically and ascending. However, numbers will not be sorted correctly (40 comes before 5). To sort numbers, you must add a function that compare numbers.
Examples
Example 1
Sort an array (alphabetically and ascending):
var fruits = ["Banana", "Orange", "Apple", "Mango"];
document.write(fruits.sort());
</script>
The output of the code above will be:
Try it yourself »
Example 2
Sort numbers (numerically and ascending):
function sortNumber(a,b)
{
return a - b;
}
var n = ["10", "5", "40", "25", "100", "1"];
document.write(n.sort(sortNumber));
</script>
The output of the code above will be:
Try it yourself »
Example 3
Sort numbers (numerically and descending):
function sortNumber(a,b)
{
return b - a;
}
var n = ["10", "5", "40", "25", "100", "1"];
document.write(n.sort(sortNumber));
</script>
The output of the code above will be:
Try it yourself »
JavaScript Array Object
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