28 lines
511 B
Lua
28 lines
511 B
Lua
local table_insert = table.insert
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function table.keys(table)
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local result = {}
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for key, value in pairs(table) do
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table_insert(result, key)
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end
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return result
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end
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function table.values(table)
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local result = {}
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for key, value in pairs(table) do
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table_insert(result, value)
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end
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return result
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end
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function table.filter(table, callback)
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local result = {}
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for key, value in pairs(table) do
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if callback(value, key) then
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result[key] = value
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end
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end
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return result
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end
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