Standard Libraries

Nubo ships with built-in standard library modules that can be imported with import ... from.

import time from "@std/time"
import system from "@std/system"
import random from "@std/random"

You can also import selected values from a standard library module.

import { Time, now } from "@std/time"

Included Modules

Module	Description
@std/net/telnet	Connect to Telnet servers, write data, read lines with timeouts, and close connections.
@std/net/ssh	Connect to SSH servers, authenticate with password or key files, run commands, read/write shell data, and close sessions.
@std/net/serial	Open serial ports, write data, read data with timeouts, and close ports.
@std/os	Filesystem paths, directories, file metadata, copy, move, remove, exists, and mkdir helpers.
@std/time	Dates, times, parsing, formatting, and arithmetic.
@std/math	Numeric helpers such as absolute value, square root, powers, sine, and cosine.
@std/system	Process control, system information, file descriptors, and filesystem helpers.
@std/log	Simple leveled logging with debug, info, warn, error, and configurable log level.
@std/thread	Concurrency helpers, spawned work, scheduler yielding, and portals.
@std/json	JSON parsing and stringifying.
@std/process	External command execution with captured stdout, stderr, and exit code.
@std/iter	Iterator helper structs such as Progress, End, and Iterator.
@std/random	Random numbers, booleans, choices, and seeding.
@std/io	Console input, file streams, reading, writing, file output, and encodings.
@std/sql	SQLite, MySQL, and PostgreSQL database access.
@std/component	HTML components, component context, children, attributes, and html values.
@std/http	HTTP client instances, request configuration, responses, headers, body reading, and JSON responses.
@std/hash	Hashing, bcrypt password hashes, bcrypt comparison, and Argon2 hashing.
@std/plug	Go plugin loading and plugin action calls.

Function Syntax Note

When documenting a function value type, Nubo uses -> for the return type.

let mapper: fn(int) -> string

When writing a function implementation, write the return type after the parameter list.

fn formatNumber(value: int) string {
    return string(value)
}

For a function that does not return a value, use void.

fn logMessage(message: string) void {
    println(message)
}

Anonymous functions should be used as values or arguments.

let worker = fn(name: string) void {
    println("Hello", name)
}