[JS -- snippets -- node] #JavaScript #nodejs

node.js

/////////////////////////////////////////////////
// __dirname, __filename
// https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c#pure-esm-package
// https://nodejs.org/api/globals.html
import * as path from 'node:path'
import { fileURLToPath } from 'node:url'

const __dirname = path.dirname(fileURLToPath(import.meta.url))
const some_file = path.join(__dirname, './foo.png')

/////////////////////////////////////////////////
import { strict as assert } from 'node:assert';

new assert.AssertionError({
  actual: 1,
  expected: 2,
  operator: 'strictEqual'
});

assert(value[, message])
assert.ok(value[, message])

assert.deepStrictEqual(actual, expected[, message])
assert.notDeepStrictEqual(actual, expected[, message])

assert.doesNotReject(asyncFn[, error][, message])
assert.doesNotThrow(fn[, error][, message])

assert.strictEqual(actual, expected[, message])
assert.notStrictEqual(actual, expected[, message])

assert.fail([message])

/////////////////////////////////////////////////
// Read a file
import * as fs from 'node:fs'
const contents = fs.readFileSync('file path', 'utf8')
console.log(contents)

/////////////////////////////////////////////////
import * as os from 'node:os';
os.EOL


import * as util from 'node:util';
const INSPECT_OPTIONS = {
	depth: Infinity,
	colors: true,
	maxArrayLength: Infinity,
	//breakLength: getꓽterminal_size().columns,
	//compact: true,
}
function dump(...args: any[]) {
	if (args.length === 1) {
		console.log(util.inspect(args[0], INSPECT_OPTIONS))
	}
	else {
		console.log(util.inspect(args, INSPECT_OPTIONS))
	}
}