Same ruby on rails query returning different values

Question

Can someone explain me what is happening here?

Don't put images of code/results in your question. It's impossible to copy or index properly in search engines. — Marek Lipka
– Marek Lipka, Commented Dec 4, 2018 at 12:59

Marek Lipka · Accepted Answer · 2018-12-04 13:04:05Z

9

In the first case, you call method ceil with an argument, which is -200, it's equivalent to:

(expression).ceil(-200)

The optional argument passed into ceil is responsible for precision.

In the second, you call ceil without any arguments and substract 200 from its result, i.e. you call method - with argument 200 on its result, so it's equivalent to:

(expression).ceil.-(200)

edited Dec 4, 2018 at 13:04

answered Dec 4, 2018 at 12:58

Marek Lipka

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