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Module:FunList: Difference between revisions
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end | end | ||
function funlist:toLookup() | function funlist:toLookup(keySelector, valueSelector) | ||
assert(keySelector) | |||
local lookup = {} | |||
-- Filter out unique values. | |||
for _, item in pairs(self.mytable) do | |||
local key = keySelector(item) | |||
local value = valueSelector and valueSelector(item) or item | |||
if not lookup[key] then | |||
hashSet[key] = {} | |||
end | |||
table.insert(lookup[key], item) | |||
end | |||
self.mytable = lookup | |||
return self | |||
end | end | ||