AKAyush Kumarinayush-backend.hashnode.dev·Apr 28 · 2 min readSetting Up Your First Node.js ApplicationInstalling Node.js Go to the official site: https://nodejs.org Download the LTS (Long Term Support) version Install with default settings (works for Windows, macOS, Linux) OS-neutral tip: If you00
AKAyush Kumarinayush-backend.hashnode.dev·Apr 28 · 2 min readURL Parameters vs Query Strings in Express.jsWhat are URL Parameters (Route Params)? URL parameters are dynamic values inside the URL path used to identify a specific resource. Think: “Which exact thing?” (identifier) Example: /users/42 Here: 00
AKAyush Kumarinayushblogjs.hashnode.dev·Apr 28 · 2 min readArray Flatten in JavaScriptWhat are Nested Arrays? A nested array is simply an array inside another array. Example: const arr = [1, 2, [3, 4], [5, [6, 7]]]; Think of it like folders inside folders . Why Flattening Arrays is Us00
AKAyush Kumarinayushblogjs.hashnode.dev·Apr 26 · 2 min readSpread vs Rest OperatorsWhat Spread Operator Does? The spread operator is used to expand (unpack) values. It takes elements from an array/object and spreads them out. Example with Arrays: const nums = [1, 2, 3]; const newNu00
AKAyush Kumarinayushblogjs.hashnode.dev·Apr 26 · 2 min readJavaScript Modules: Import and ExportWhat Are Modules And Why Are They Needed? A module is just a separate file of code that you can export from and import into other files. Each module has its own scope. Before modules, JavaScript code 00
