# Description
Those two commands did *not* vectorize over the input in the pure sense
as they performed a flat map. Now they return a list for each string
that gets split by them.
```
["foo" "bar"] | split chars
```
## Before
```
╭───┬───╮
│ 0 │ f │
│ 1 │ o │
│ 2 │ o │
│ 3 │ b │
│ 4 │ a │
│ 5 │ r │
╰───┴───╯
```
## After
```
╭───┬───────────╮
│ 0 │ ╭───┬───╮ │
│ │ │ 0 │ f │ │
│ │ │ 1 │ o │ │
│ │ │ 2 │ o │ │
│ │ ╰───┴───╯ │
│ 1 │ ╭───┬───╮ │
│ │ │ 0 │ b │ │
│ │ │ 1 │ a │ │
│ │ │ 2 │ r │ │
│ │ ╰───┴───╯ │
╰───┴───────────╯
```
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