if
For core.
Conditionally run a block.
Command Type
keyword
Signature
> if {flags} (cond) (then_block) (else_expression)
Parameters
cond: Condition to check.then_block: Block to run if check succeeds.else_expression: Expression or block to run when the condition is false.
Input/output types:
| input | output |
|---|---|
| any | any |
Examples
Output a value if a condition matches, otherwise return nothing.
> if 2 < 3 { 'yes!' }
yes!Output a value if a condition matches, else return another value.
> if 5 < 3 { 'yes!' } else { 'no!' }
no!Chain multiple if’s together.
> if 5 < 3 { 'yes!' } else if 4 < 5 { 'no!' } else { 'okay!' }
no!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.