Node.js · Theory

Explain the Colors Module in Node.js

Theory

562/723

Explain the Colors Module (node js) is simple if you keep it on paper. Asha uses it for install express in a new folder.

Keep Explain the Colors Module (node js) small. Asha should finish install express in a few lines, not a 40-line dump.

Explain the Colors Module (node js) exists so Asha can keep install express correct in a new folder.

Explain the Colors Module (node js) shows up in a new folder. Name install express, not “a real-world scenario”.

Don’t do this with Explain the Colors Module (node js): deleting package-lock blindly. Interviewers spot it in ten seconds.

After Explain the Colors Module (node js), Asha should still remember deleting package-lock blindly.

One breath for Explain the Colors Module (node js), then install express, then deleting package-lock blindly. Sit down.

Exam tip

Board: install express. Dry-run Explain the Colors Module (node js). Name the trap: deleting package-lock blindly.

// math.js style
function add(a, b) { return a + b; }
module.exports = { add };

const math = { add };
console.log(math.add(2, 3));

Explain the Colors Module in Node.js — commonJS uses require / module.exports. ESM uses import / export.

DefExplain the Colors Module (node js) — Asha uses it for install express in a new folder.
RuleExplain the Colors Module (node js) → npm init + npm i express.
RememberExplain the Colors Module (node js) + npm (a new folder).
UseExplain the Colors Module (node js) in a new folder (install express).
TrapExplain the Colors Module (node js) — deleting package-lock blindly.
ExExplain the Colors Module (node js) → install express.