pickRandom inconsistent behavior: returns array if receives an array of length=1

[moshetet]

pickRandom([6,7]); //returns either 6 or 7
pickRandom([6]); //returns [6] instead of 6

Seen on Node 8.9.0

[harrysarson]

See http://mathjs.org/docs/reference/functions/pickRandom.html

The return type of math.pickRandom is documented as array so either it so the docs wrong.

The question is: should pickRandom

1. Always return an array.
2. Return an array if there are multiple values and the value if there is a single value.

[josdejong]

I think that the idea is that pickRandom returns a single value like pickRandom([6,7]) does, unless you want it to return multiple values like pickRandom([1,2,3,4], 2), in which case it returns an array with the number of values that you configured.

So I think:

• the documentation needs to be improved to clarify that
• pickRandom([6]) returning [6] is a bug, should return 6 instead

[josdejong]

Should be fixed now in the develop branch.

[josdejong]

Should be fixed now in v3.18.0