Core Modules & CLI — Series 2

Preview — 3 of 10 questions

Assume this script is run as: node script.js hello world. What is logged?

javascript

console.log(process.argv.length);
console.log(process.argv[2]);
console.log(process.argv[3]);

A4, "script.js", "hello"

B4, "hello", "world"

C2, "hello", "world"

D2, "script.js", "hello"

What is logged?

javascript

const fs = require('fs');

fs.writeFileSync('notes.txt', 'Hello Node');
const content = fs.readFileSync('notes.txt', 'utf8');

console.log(content);
console.log(typeof content);

A<Buffer 48 65 6c 6c 6f 20 4e 6f 64 65>, "object"

B"Hello Node", "object"

C"Hello Node", "string"

Dundefined, "undefined"

What is logged?

javascript

const path = require('path');

const filePath = '/home/user/documents/report.pdf';

console.log(path.basename(filePath));
console.log(path.extname(filePath));
console.log(path.join('folder', 'subfolder', 'file.txt'));

A"report", ".pdf", "folder/subfolder/file.txt"

B"report.pdf", "pdf", "folder/subfolder/file.txt"

C"report.pdf", ".pdf", "folder/subfolder/file.txt"

D"/home/user/documents/report.pdf", ".pdf", "folder/subfolder/file.txt"

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