We discussed Lua's length operator in the context of
lists and strings. Now let's take a look at finding
the length of a *map*.

Let's first take a look at how the length operator behaves with a *map*:

```
local x = {
a = 1,
b = 2,
c = 3,
d = 4,
e = 5,
}
print(#x) -- 0
```

Hmm, that was not expected. The table clearly has 5 values in it, but the result is 0. It turns out
the that *length* operator *only* considers the number of list-like values contained in a table, and
does not consider mappings at all.

Getting the number of items in a *map* requires counting items manually:

```
local count = 0
for key, val in pairs(x) do
count = count + 1
end
print(count) -- 5
```