JavaScript async/await cheat sheet for full stack devs

JS vs TS - Same Syntax, Different Mindset As I’ve been diving deeper into web development, one comparison always stands out: JavaScript vs TypeScript: JavaScript gave us freedom. TypeScript gave us discipline. Both shaped how the web works - but with completely different philosophies. Interesting fact: The Angular team switched completely to TypeScript in 2016 - the entire framework now runs on it. Meanwhile, React originally used a type-checking tool called Flow, but most React developers have now transitioned to TypeScript because it’s more widely supported and easier to maintain. What I’ve realized: TypeScript isn’t replacing JavaScript - it’s helping JavaScript grow up. JS is perfect for creativity. TS is perfect for clarity. Curious to hear from others: Do you prefer JS (freedom) or TS (structure) for your projects? #JavaScript #TypeScript #WebDevelopment #Coding #Learning #Developers #ProgrammingJourney

 Understanding var, let, and const in JavaScript One of the first steps toward writing clean, predictable JavaScript is knowing when to use var, let, and const. 🔸 var — function-scoped, can be redeclared, hoisted. 🔸let — block-scoped, can be updated, safer than var. 🔸const — block-scoped, cannot be updated or redeclared. Best practice: Use const by default, let only if the value needs to change, and avoid var in modern code. Write cleaner logic. Reduce bugs. Build better JavaScript. #JavaScript #WebDevelopment #ProgrammingTips #CleanCode #Developers #TechCommunity #Frontend #ES6 #ReactJs #Hooks #hoisting #DOM #VirtualDom #interview

Okay, Day 9 was all about leveling up the JavaScript foundation. I spent the day deep-diving into Arrays, and honestly, they're the best! An array is essentially a super-powered list that lets you store a ton of information—like every item on a menu—under one neat variable. Getting comfortable with array methods like .push() and .forEach() feels like I've just unlocked a huge part of dynamic web building. It's the difference between hard-coding everything and letting JavaScript manage the content for me. Feels good to get this fundamental piece of logic fully wired! Question: Why is using an array (like dishes = ["soup", "salad"]) so much better than just using a bunch of separate variables (like dish1, dish2, dish3) when dealing with dozens of items?" #Javascript #arrays #31dayschallenge #webdevelopment #frontend

When You Finally Understand the DOM” At first, the DOM feels like magic. Then you realize it’s just structured chaos. But once you learn how to manipulate it — you stop being a beginner. That’s the moment you move from coding websites to controlling them. The DOM isn’t scary. It’s just the bridge between your logic and the user’s screen. 🌐 #JavaScript #DOM #FrontendDevelopment #WebDev

💻 JavaScript Error Reference – Know Your Errors! In JavaScript, errors aren’t always bad — they help you spot what went wrong! 🚫💡 The Error Reference in JavaScript gives developers detailed info about what kind of problem occurred and where it happened. Here are the most common error types you’ll encounter 👇 🔹 ReferenceError – When you try to use a variable that hasn’t been declared. 🔹 SyntaxError – When your code has invalid syntax. 🔹 TypeError – When a value isn’t the expected data type. 🔹 RangeError – When a number is out of an allowed range. 🔹 URIError – When you misuse URI functions. 🔹 EvalError – Rare, but triggered by issues in the eval() function. 🧠 Pro Tip: Use try...catch blocks to handle these errors gracefully, so your app doesn’t crash when something goes wrong! Example: try { console.log(x); // x is not defined } catch (error) { console.error(error.name + ": " + error.message); } 👀 JavaScript errors aren’t enemies — they’re guides pointing you to cleaner, smarter code! 💪 #JavaScript #CodingTips #WebDevelopment #JSBeginner #LearnCoding #webdev #frontend #codecraftbyaderemi

𝐈 𝐛𝐞𝐭 𝐲𝐨𝐮 𝐝𝐢𝐝𝐧’𝐭 𝐤𝐧𝐨𝐰 𝐭𝐡𝐢𝐬… . . . There’s a 30-𝐲𝐞𝐚𝐫-𝐨𝐥𝐝 𝐛𝐮𝐠 in JavaScript — and it’ll never be fixed. 𝐭𝐲𝐩𝐞𝐨𝐟 𝐧𝐮𝐥𝐥 === "𝐨𝐛𝐣𝐞𝐜𝐭"; // 𝐭𝐫𝐮𝐞 🤯 This is not a quirk — it’s a mistake. When JS was created in 1995, 𝐧𝐮𝐥𝐥 was stored as all 0’s in memory. Objects also used 0 as a type tag. So JS confused them. Now fixing it would break the web. 💀 #JavaScript #ProgrammingHistory #WebDev #JavaScript #WebDevelopment #ProgrammingHistory

🚀 Importing into JavaScript Modules The `import` keyword is used to bring in variables, functions, or classes from other modules. You can import named exports using curly braces `{}` and specifying the names of the exported values. You can import the default export using any name you choose, without curly braces. Modules must be properly linked and configured in your project to ensure that imports resolve correctly. Importing allows you to reuse code and build complex applications from smaller, manageable components. #JavaScript #WebDev #Frontend #JS #professional #career #development

🚀 Importing into JavaScript Modules The `import` keyword is used to bring in variables, functions, or classes from other modules. You can import named exports using curly braces `{}` and specifying the names of the exported values. You can import the default export using any name you choose, without curly braces. Modules must be properly linked and configured in your project to ensure that imports resolve correctly. Importing allows you to reuse code and build complex applications from smaller, manageable components. #JavaScript #WebDev #Frontend #JS #professional #career #development

🚀 Importing into JavaScript Modules The `import` keyword is used to bring in variables, functions, or classes from other modules. You can import named exports using curly braces `{}` and specifying the names of the exported values. You can import the default export using any name you choose, without curly braces. Modules must be properly linked and configured in your project to ensure that imports resolve correctly. Importing allows you to reuse code and build complex applications from smaller, manageable components. #JavaScript #WebDev #Frontend #JS #professional #career #development