Array

Thesort() method sorts an array alphabetically:

Example

constfruits=["Banana","Orange","Apple","Mango"];fruits.sort();// Apple,Banana,Mango,Orange

Thereverse() method reverses the elements in an array.
You can use it to sort an array in descending order:

Example

constfruits=["Banana","Orange","Apple","Mango"];fruits.reverse();// Orange,Mango,Banana,Apple

Numeric Sort

By default, thesort() function sorts values as strings.

This works well for strings ("Apple" comes before"Banana").

However, if numbers are sorted as strings,"25" is bigger than"100", because"2" is bigger than"1".

Because of this, thesort() method will produce incorrect result when sorting numbers.

You can fix this by providing a compare function:

Example

constpoints=[40,100,1,5,25,10];points.sort((a,b)=>(a-b));// 1,5,10,25,40,100

Use the same trick to sort an array descending:

Example

constpoints=[40,100,1,5,25,10];points.sort((a,b)=>(b-a));// 100,40,25,10,5,1

Ref