53 lines
1.6 KiB
Lua
53 lines
1.6 KiB
Lua
-- loveutils.table : simple functions for table manipulation and computation.
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-- TODO: could be a part of loveutils.math ?
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--[[
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Copyright © 2019 Kazhnuz
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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]]
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local Table = {}
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function Table.reduce(list, fn)
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local acc
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for k, v in ipairs(list) do
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if 1 == k then
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acc = v
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else
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acc = fn(acc, v)
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end
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end
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return acc
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end
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function Table.sum(table)
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local sum = 0
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for _, v in pairs(table) do
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sum = sum + v
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end
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return sum
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end
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function Table.average(table)
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return Table.sum(table) / #table
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end
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return Table
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