cli_readme.md

Overview

cli.mjs provides essential tools for JS CLI apps. Features:

• Platform-agnostic OS args.
  • Works in Deno.
  • Works in Node.
  • Always empty in browsers.
• Platform-agnostic console clearing.
• Parsing of CLI flags.
• Tiny, no external dependencies.

TOC

• #Overview
• #Usage
• #API
  • #class Flag
  • #Undocumented

Usage

CLI args:

import * as cl from 'https://cdn.jsdelivr.net/npm/@mitranim/js@0.1.53/cli.mjs'

const cli = cl.Flag.os()

console.log(...cli.entries())
console.log(...cli.args)

Console clearing:

import * as cl from 'https://cdn.jsdelivr.net/npm/@mitranim/js@0.1.53/cli.mjs'

cl.emptty()

Clearing the console only once, before running your code:

import 'https://cdn.jsdelivr.net/npm/@mitranim/js@0.1.53/cli_emptty.mjs'

API

class Flag

Links: source; test/example.

Parser for CLI args. Features:

• Supports flags prefixed with -, --.
• Supports = pairs.
• Separates flags from unflagged args.
• Parses flags into a map.
• Stores remaining args as an array.
• On-demand parsing of booleans and numbers.

const cli = cl.Flag.os()
const args = cli.args
const watch = cli.boolOpt(`w`)

Undocumented

The following APIs are exported but undocumented. Check cli.mjs.

• function args
• function arg
• function consoleCols
• function emptty
• class EnvMap
• const TERM_ESC
• const TERM_ESC_CSI
• const TERM_ESC_CUP
• const TERM_ESC_ERASE2
• const TERM_ESC_ERASE3
• const TERM_ESC_RESET
• const TERM_ESC_CLEAR_SOFT
• const TERM_ESC_CLEAR_HARD
• function arrClearSoft
• function arrClearHard
• function timed