Sort Array in Javascript

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I have an Array with even numbers decreasing:

var a = [20, 18, 10, 8, 6, 4, 2, 0]

when I call a.sort(), he returns me the following:

[0, 10, 18, 2, 20, 4, 6, 8]

This ordination is not correct. How can I order by ascending order correctly?

javascript

1 answer

6

You need to pass the comparison function:

var a = [20, 18, 10, 8, 6, 4, 2, 0]
a.sort( (a,b) => a - b );
console.log(a);

The reason for this is:

If function according to its conversion to text and the text compared in Unicode score of the converted text. For example, "Cherry" comes before of "banana". In a numerical ordering, 9 comes before 80, but because the numbers are converted to text and, "80" comes before "9" in unicode ordination.

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