456e2a8ee3
# Description we talked about this before in some meetings so i thought, why not? the hope is that these constants do not require Rust code to be implemented and that this move will make the Rust source base a bit smaller 🤞 # User-Facing Changes mathematical constants (e, pi, tau, phi and gamma) are now in `std math` rather than `math` ## what can be done ```nushell > use std; $std.math > use std math; $math > use std *; $math ``` will all give ``` ╭───────┬────────────────────╮ │ GAMMA │ 0.5772156649015329 │ │ E │ 2.718281828459045 │ │ PI │ 3.141592653589793 │ │ TAU │ 6.283185307179586 │ │ PHI │ 1.618033988749895 │ ╰───────┴────────────────────╯ ``` and the following will work too ```nushell > use std math E; $E 2.718281828459045 ``` ```nushell > use std math *; $GAMMA 0.5772156649015329 ``` ## what can NOT be done looks like every export works fine now 😌 # Tests + Formatting # After Submitting |
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| .. | ||
| src | ||
| std | ||
| tests | ||
| Cargo.toml | ||
| CONTRIBUTING.md | ||
| LICENSE | ||
| README.md | ||
Welcome to the standard library of `nushell`!
The standard library is a pure-nushell collection of custom commands which
provide interactive utilities and building blocks for users writing casual scripts or complex applications.
To see what's here:
> use std
> help commands | select name usage | where name =~ "std "
╭────┬─────────────────────────────┬────────────────────────────────────────────────────────────────╮
│ # │ name │ usage │
├────┼─────────────────────────────┼────────────────────────────────────────────────────────────────┤
│ 0 │ std assert │ Universal assert command │
│ 1 │ std assert equal │ Assert $left == $right │
. . .
│ 11 │ std clip │ put the end of a pipe into the system clipboard. │
│ 12 │ std dirs add │ Add one or more directories to the list. │
. . .
├────┼─────────────────────────────┼────────────────────────────────────────────────────────────────┤
│ # │ name │ usage │
╰────┴─────────────────────────────┴────────────────────────────────────────────────────────────────╯
🧰 Using the standard library in the REPL or in scripts
All commands in the standard library must be "imported" into the running environment
(the interactive read-execute-print-loop (REPL) or a .nu script) using the
use command.
You can choose to import the whole module, but then must refer to individual commands with a std prefix, e.g:
use std
std log debug "Running now"
std assert (1 == 2)
Or you can enumerate the specific commands you want to import and invoke them without the std prefix.
use std ["log debug" assert]
log debug "Running again"
assert (2 == 1)
This is probably the form of import you'll want to add to your env.nu for interactive use.
✏️ contribute to the standard library
You're invited to contribute to the standard library! See CONTRIBUTING.md for details