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polars lit for expression

Creates a literal expression.

This command requires a plugin

The polars lit command resides in the polars plugin. To use this command, you must install and register nu_plugin_polars. See the Plugins chapter in the book for more information.

Signature

> polars lit {flags} (literal)

Parameters

  • literal: literal to construct the expression

Input/output types:

inputoutput
anyexpression

Examples

Created a literal expression and converts it to a nu object

> polars lit 2 | polars into-nu
╭───────┬────────────╮
│ expr  │ literal    │
│ value │ dyn int: 2 │
╰───────┴────────────╯

Create a literal expression from date

> polars lit 2025-04-13 | polars into-nu
╭──────────────┬──────────────────────────────────────────╮
│              │ ╭───────┬──────────────────────────────╮ │
│ expr         │ │ expr  │ literal                      │ │
│              │ │ value │ dyn int: 1744502400000000000 │ │
│              │ ╰───────┴──────────────────────────────╯ │
│ dtype        │ Datetime(Nanoseconds, None)              │
│ cast_options │ STRICT                                   │
╰──────────────┴──────────────────────────────────────────╯

Create a literal expression from duration

> polars lit 3hr | polars into-nu
╭──────────────┬─────────────────────────────────────╮
│              │ ╭───────┬─────────────────────────╮ │
│ expr         │ │ expr  │ literal                 │ │
│              │ │ value │ dyn int: 10800000000000 │ │
│              │ ╰───────┴─────────────────────────╯ │
│ dtype        │ Duration(Nanoseconds)               │
│ cast_options │ STRICT                              │
╰──────────────┴─────────────────────────────────────╯