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commands: any? all? (#3252)

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* commands: any? all?

We can check if `any` (or `all`) rows of tables match predicates.

Small `all?` example: Given the following table with `services` running:

```
> echo [[status]; [UP] [UP]]
───┬────────
 # │ status
───┼────────
 0 │ UP
 1 │ UP
───┴────────
```

We can ask if all services are UP, like so:

```
> echo [[status]; [UP] [UP]] | all? status == UP
true
```

* Fix any? signature.
This commit is contained in:
Andrés N. Robalino
2021-04-03 13:40:54 -05:00
committed by GitHub
parent 2146ede15d
commit e278ca61d1
8 changed files with 373 additions and 7 deletions
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2
crates/nu-command/src/commands/default_context.rs
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@ -124,6 +124,8 @@ pub fn create_default_context(interactive: bool) -> Result<EvaluationContext, Bo
whole_stream_command(IntoInt),
whole_stream_command(SplitBy),
// Row manipulation
whole_stream_command(All),
whole_stream_command(Any),
whole_stream_command(Reverse),
whole_stream_command(Append),
whole_stream_command(Prepend),