'what does - do in the sort function? why are we subtracting b from a? [duplicate]

Array.sort((a,b) => a - b);

so i have this typical sort for an Array of numbers. What does the subtract do? why are we subtracting b from a?

javascript

Solution 1:^[1]

If the result is >0 :

b goes before a

If the result is <0 :

a goes before b

Solution 2:^[2]

The sort function returns a number, because values greater than 0 are sorting b before a and values less than 0 are sorting a before b.

So if you are returning a-b you are sorting in ascending order (from small to big numbers)

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Solution	Source
Solution 1	Moein moeinnia
Solution 2

'what does - do in the sort function? why are we subtracting b from a? [duplicate]

Solution 1:[1]

Solution 2:[2]

Sources

Related Questions

Solution 1:^[1]

Solution 2:^[2]