nushell/crates/nu-command/tests
Andrés N. Robalino 19d5f782cc
Allow dropping columns. (#3107)
`drop` is used for removing the last row. Passing a number allows dropping N rows.
Here we introduce the same logic for dropping columns instead.

You can certainly remove columns by using `reject`, however, there could be cases
where we are interested in removing columns from tables that contain, say, a big
number of columns. Using `reject` becomes impractical, especially when you don't
care about the column names that could either be known or not known when exploring
tables.

```
> echo [[lib, extension]; [nu-core, rs] [rake, rb]]
─────────┬───────────
   lib   │ extension
─────────┼───────────
 nu-core │ rs
 rake    │ rb
─────────┴───────────
```

```
> echo [[lib, extension]; [nu-core, rs] [rake, rb]] | drop column
─────────
   lib
─────────
 nu-core
 rake
─────────
```
2021-02-25 15:37:21 -05:00
..
commands Allow dropping columns. (#3107) 2021-02-25 15:37:21 -05:00
format_conversions add "-0" as short for --headerless in "from" commands (#3042) 2021-02-22 20:25:17 +13:00
main.rs nu-cli refactor moving commands into their own crate nu-command (#2910) 2021-01-12 17:59:53 +13:00