particle physics - What parity has an electron?

I couldn't find anything about the parity of an electron. Neither in the german, nor in the spanish and nor in the english version of Wikipedia.

I only found one sentence in the parity article of Wiki:

One way to fix a standard parity operator is to assign the parities of three particles with linearly independent charges B, L and Q. In general one assigns the parity of the most common massive particles, the proton, the neutron and the electron, to be +1. - Wiki

But I cannot find other sources to confirm it.

I do not need it for a special exercise, it's just to understand the whole thing...

Answer

spin 1/2 fermions (electron, proton, neutron, muon, tau, quarks) have +1 parity (by convention as pointed out in Anna's comment). The corresponding anti-fermions have -1 parity.

Bosons and their anti-particles have the same parity.

See this and this lecture for more information on parity.