mut
For core.
Create a mutable variable and give it a value.
Command Type
keyword
Signature
> mut {flags} (var_name) (initial_value)
Parameters
var_name: The mutable variable name to create.initial_value: Equals sign followed by value.
Input/output types:
| input | output |
|---|---|
| any | nothing |
Examples
Set a mutable variable to a value, then update it.
> mut x = 10; $x = 12
Upsert a value inside a mutable data structure.
> mut a = {b:{c:1}}; $a.b.c = 2
Set a mutable variable to the result of an expression.
> mut x = 10 + 100
Set a mutable variable based on the condition.
> mut x = if false { -1 } else { 1 }
Notes
This command is a parser keyword. For details, check: https://www.nushell.sh/book/thinking_in_nu.html
Ported from nushell/nushell.github.io. Copyright (c) 2021 Nushell Project. MIT License.