---- These methods only mutate
-function array_methods:random()
- return self[math.random(1,#self)];
+function array_base.pluck(outa, ina, key)
+ for i = 1, #ina do
+ outa[i] = ina[i][key];
+ end
+ return outa;
+end
+
+function array_base.reverse(outa, ina)
+ local len = #ina;
+ if ina == outa then
+ local middle = math_floor(len/2);
+ len = len + 1;
+ local o; -- opposite
+ for i = 1, middle do
+ o = len - i;
+ outa[i], outa[o] = outa[o], outa[i];
+ end
+ else
+ local off = len + 1;
+ for i = 1, len do
+ outa[i] = ina[off - i];
+ end
+ end
+ return outa;