Lua How to sort this table

[andu]

local rewards = {
    {level = 50, gold = 10000, check = 3},
    {level = 160, gold = 20000, check = 5},
    {level = 70, gold = 75000, check = 88},
    {level = 200, gold = 200000, check = 11},
    {level = 90, gold = 5000, check = 1}
}

How to sort that table by level?

 

[Pteryx]

local rewardsX = {
[50] = {level = 50, gold = 10000, check = 3},
[160] = {level = 160, gold = 20000, check = 5},
[70] = {level = 70, gold = 75000, check = 88},
[200] = {level = 200, gold = 200000, check = 11},
[90] = {level = 90, gold = 5000, check = 1}
}

table.sort(local rewardsX)

You can also make the elements look like this: [50] = {gold = 10000, check = 3}.

It's also possible to make the keys dynamically (so you can sort on any of the three object properties), or write your own iterator, but both of those are probably over-doing it.

 

[Ninja]

table.sort(rewards, function(a, b) return a.level < b.level end)

for i = 1, #rewards do
    print(rewards[i].level)
end