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-- * Collection functions.
-- * Collection functions.
function Utils.isArray(xs)
for k, _ in pairs(xs) do
return k == 1
end
return true
end
function Utils.findBy(xs, p)
if Utils.isArray(xs) then
for k, v in ipairs(xs) do
if p(v, k) then
return v, k
end
end
else
for k, v in pairs(xs) do
if p(v, k) then
return v, k
end
end
end
return nil
end
function Utils.find(tbl, v_, k_)
function Utils.find(tbl, v_, k_)