Node.js vs Browser JS
Browser, JavaScript, mein, DOM, MANIPULATION, (document.getElementById), window, OBJECT, aur, localStorage, JAISE, APIs, HOTE, HAIN — YE, SAB, Node.js, mein, EXIST, NAHI, KARTE, kyunki, Node.js, mein, "BROWSER" HI, NAHI, hai.
Node.js, mein, module.exports/require (CommonJS) YA, import/export (ES modules), FILE SYSTEM, (fs), aur, process, JAISE, SERVER-SPECIFIC, FEATURES, HOTE, HAIN — YE, BROWSER, mein, AVAILABLE, NAHI, HAIN (SECURITY, REASONS, SE).
// Browser mein:
document.getElementById("app").innerHTML = "Hello";
window.localStorage.setItem("key", "value");
// Node.js mein:
const fs = require("fs");
fs.writeFileSync("output.txt", "Hello");
console.log(process.env.NODE_ENV);- Same JavaScript syntax, LEKIN, ALAG, GLOBAL, APIs (window vs process)
- Node.js = server-side APIs (fs, http), Browser = DOM/window APIs
- Node.js mein, CommonJS (require) aur, ES Modules, DONO, SUPPORT, HOTE, HAIN
Browser, mein, TOP-LEVEL, GLOBAL, OBJECT, window, hai. Node.js, mein, YE, global, hai. Node.js, mein, HAR, FILE, apna, ALAG, MODULE, SCOPE, RAKHTI, hai (BROWSER, ki, TARAH, SAB, EK, SHARED, SCOPE, mein, NAHI).
// Browser:
// window.alert("Hi");
// Node.js:
console.log(global.process.version);
// __dirname, __filename, module, require — sirf, Node.js, meinNode.js, mein, DOM, (Document Object Model) EXIST, NAHI, karta — SERVER-SIDE, RENDERING, (jaise, Next.js) TOOLS, ISLIYE, JSDOM, jaisi, LIBRARIES, USE, karte, HAIN, JO, DOM, ko, VIRTUALLY, SIMULATE, karti, HAIN, TESTING, YA, SSR, ke, liye.