# 99 questions/Solutions/4

From HaskellWiki

(*) Find the number of elements of a list.

```
myLength :: [a] -> Int
myLength [] = 0
myLength (_:xs) = 1 + myLength xs
```

```
myLength :: [a] -> Int
myLength = foldr (\x n -> n + 1) 0
```

This is `length`

in `Prelude`

.