#learnjswithme search results

Day 17 of #LearnJSwithMe Every beginner's mistake : using the global scope like a junk drawer. Wrap your code in functions or modules. Globals don't just clutter, they haunt. #jsbytes

Day 17 of #LearnJSWithMe Master array methods - they’ll make you unstoppable : .map(), .filter(), .reduce(), .find() Learn them deeply; loops will feel ancient after that. #TechPeople #WebDev #JSbytes #JStips #LearnJS

PRO TIP - If you’re ever confused about what this refers to - just console.log(this) inside your function. It'll tell you the truth faster than any tutorial 😄 #LearnJSWithMe #JavaScript #JSbytes

Day 16 of #LearnJSWithMe 'this' Keyword (Confusing but easy too.. 🙂) 'this' depends on how you call the function, not where it’s written. Arrow functions don’t have their own this, they use parent scope. Regular functions bind dynamically. That’s the whole secret. #JSbytes

Day 15 of #LearnJSWithMe Shallow vs Deep Copy = copies reference ❌ Spread copies shallow ✅ structuredClone() copies deep ✅ const copy = structuredClone(obj); Know what you’re copying, or bugs will copy you 😅 #JSbytes #LearnJS #TechTips

Day 14 of #LearnJSWithMe Debounce (Real UI Magic) - Debouncing prevents spam calls (like search input on every keystroke). function debounce(fn, delay){ let t; return (...a)=>{ clearTimeout(t); t=setTimeout(()=>fn(...a), delay); } } Cleaner UI. Faster apps #JSbytes

Day 13 of #LearnJSWithMe Event Loop (Understanding async) - JS is single-threaded, but async feels magical because of the Event Loop. Order of execution: 1) Call stack 2) Microtasks (Promises) 3) Macrotasks (setTimeout) Master this = master async #JSbytes #JStips #TechTips

Day 12 of #LearnJSWithMe Closures = a function remembers its parent scope, even after the parent is gone. function outer() { let count = 0; return () => count++; } This is how private variables & memoization work in JS. #JSbytes #LearnJS #letsconnect #TechTips #TechPeople

Day 12 of #LearnJSWithMe Closures = a function remembers its parent scope, even after the parent is gone. function outer() { let count = 0; return () => count++; } This is how private variables & memoization work in JS. #JSbytes #LearnJS #JSTips #TechTips #TechNews #TechJobs

Day 11 of #LearnJSWithMe Hoisting = JS moves declarations to the top. But remember: only declarations, not initializations. console.log(x); // undefined var x = 5; With let & const, you get a Temporal Dead Zone instead of silent bugs. #JSbytes #JSTips #LearnJS #TechNews

Day 10 of #LearnJSWithMe Running async calls one-by-one? That’s slow 🫤 Use Promise.all() to run them in parallel : await Promise.all([fetchUser(), fetchPosts(), fetchComments()]); Faster results, cleaner async handling. #JStips #JSbytes #LearnJS #letsconnect

Day 9 of #LearnJSWithMe Stop breaking your app with undefined errors! console.log(user?.profile?.email) If any property doesn’t exist, JS returns undefined - not a crash 💥 One of the most underrated ES features! #JSbytes #LearnJS #Javascript #JSTips #LearnJavascript

Day 8 of #LearnJSWithMe No need for long if-else chains. Use short-circuiting : const name = user.name || 'Guest'; const isActive = user.loggedIn && 'Online'; || gives fallback defaults, && checks before acting. #LearnJS #LearnJavascript #JSbytes #JSTips #TechTips

Day 7 of #LearnJSWithMe map() transforms every element in an array - no loops needed. const prices = [100, 200, 300]; const gst = prices.map(p => p * 1.18); console.log(gst); // [118, 236, 354] When you map, you think functional. #JSTips #JSbytes #LearnJS #TechTips

Day 6 of #LearnJSWithMe The spread operator (...) makes copying & merging arrays/objects effortless. const nums = [1, 2, 3]; const copy = [...nums, 4, 5]; console.log(copy); // [1, 2, 3, 4, 5] Cleaner than concat() - and super handy for immutability! #LearnJS #JSbytes #JStips

Day 5 of #LearnJSWithMe De-structuring = easier access to object/array values. const user = { name: 'John', age: 10 }; const { name, age } = user; console.log(name, age); // John 10 Simple & readable !! #Javascript #JSTips #JSbytes #LearnJavascript #TechTwitter #TechPeople

Day 4 of #LearnJSWithMe Never worry about undefined arguments! Default parameters to the rescue : function greet(name = 'Guest') { console.log(`Hello ${name}!`); } #JavaScript #WebDev #JSTips #NextJS #JSbytes

Day 3 of #LearnJSWithMe Arrow functions are shorter & lexically bind this. Old - const add = function(a, b) { return a + b; } New - const add = (a, b) => a + b; Less code, fewer bugs! ⚡ #JSTips #TechTips #LearnJS #Javascript #ReactJS #TechInterview #JSbytes

Day 2 of #LearnJSWithMe Template literals = cleaner strings in JS. Instead of : console.log('Hello ' + name + '!') Use console.log(`Hello ${name}!`) Readable, elegant, and modern 💡 #JavaScript #WebDev #JSTips #JSbytes

Welcome to Day 1 of #LearnJSWithMe 🚀 Let’s start simple: Why let is better than var in JS ⬇️ var is function-scoped and can cause unexpected bugs. let is block-scoped, safer, and modern. Use let over var—your future self will thank you #JavaScript #WebDev #JSbytes #LearnJS