Table.sort
From GiderosMobile
Available since: Gideros 2011.6
Class: table
Description
Sorts the elements of a table in-place (i.e. alter the table).
table.sort(table,comp)
A comparison function can be provided to customise the element sorting. The comparison function must return a boolean value specifying whether the first argument should be before the second argument in the sequence. The default behaviour is for the < comparison to be made. For example, the following behaves the same as no function being supplied:
> t = { 3,2,5,1,4 }
> table.sort(t)
> = table.concat(t, ", ") -- display sorted values
1, 2, 3, 4, 5
Parameters
table: (table) table to sort
comp: (function) comparison function returning bool comparison result optional
Examples
Alphabetical order
local people = {}
people [1] = { name = "bob", age = 26 }
people [2] = { name = "sue", age = 22 }
people [3] = { name = "ann", age = 28 }
table.sort(people, function(a, b)
return a.name < b.name
end)
Inversed numerical order
local people = {}
people [1] = { name = "bob", age = 26 }
people [2] = { name = "sue", age = 22 }
people [3] = { name = "ann", age = 28 }
table.sort(people, function(a, b)
return a.age > b.age -- inversed
end)
