En JavaScript, tout est une valeur.Un nombre est une valeur, une chaîne de caractères est une valeur, vrai ou faux sont des valeurs…Même “rien” est une valeur (oui, je parle de toi, null 😄). Mais la vraie question est :👉 Quel type est cette valeur et comment l’utiliser ? 1️⃣ Qu’est-ce qu’un type de donnée […]
Continue Reading
Values and Usage: “What Is This Value and Where Is It Used?” Guide 🧠📦In JavaScript, everything is a value.A number is a value, a string is a value, true–false are values…Even “nothing” is a value (yes, I’m looking at you, null 😄). But the real question is:👉 What type is this value, and what is […]
Continue Reading
A Space Journey from Basic Structure to Arrow Functions 🚀🧠 Without functions in JavaScript: With functions: In this article: From “What is a function?” to “Where should I NEVER use arrow functions?”we explain everything in a human way. 🧩 1. What Is a Function? (The Honorable Way of Being Lazy) A function means:👉 Define a […]
Continue Reading
(“Is everything really an object?”The answer is: Yes. Surprisingly, yes. 😄) Moving forward in JavaScript without understanding objectsis like taking a city tour without a map.You walk around, but you have no idea where you are. But once you understand objects:👉 Your code becomes organized👉 Your data gains meaning👉 JavaScript says “welcome” to you 👋 […]
Continue Reading
(The hidden power behind web pages that talk when you click and react when you type) Think about it for a second…You open a website.There’s a button, but you click it → nothing happensThere’s an input, but you type → no reactionYou scroll → dead silence ☠️ That site is a site that doesn’t know […]
Continue Reading
The Art, Science, and a Tiny Bit of Madness of Working with Text (“I thought I was coding… turns out I was a text editor” edition) If you’re building an application in JavaScript, you have: So what do you have? 👉 STRINGS. Without understanding strings, you: That’s why in this article, we’re not learning strings […]
Continue Reading
Becoming Sherlock Holmes Inside Text 🕵️♂️🔎 Imagine a user…They type something into an input field.And in the background, JavaScript says: “Is this word here?If yes, where exactly?How many times does it appear?Or is it just made up?” 😏 That’s exactly what String Search is:JavaScript’s detective skill.It dives into the text, follows clues, gathers evidence, and […]
Continue Reading
How to Handle Big Numbers Without Losing Your Mind 🚀 You’re coding in JavaScript.Everything is going fine.Then a number grows…And JS goes like: “I’m rounding everything past here, good luck!” That’s when BigInt steps in and says: “Okay okay, this time I’m serious.” 🎩 1️⃣ What Are Numbers in JavaScript, Anyway? JavaScript has only one […]
Continue Reading
Number Properties (A Guide That Will Make You Rethink What You Know 🚀) If you hear someone say “Numbers are simple in JavaScript,” chances are they haven’t spent quality time alone with NaN yet… In JavaScript, numbers seem to belong to a single type (number).But behind that single type, there are limits, traps, safe zones, […]
Continue Reading
“When one variable isn’t enough… it’s time to use arrays.” 🚀 One day, while learning JavaScript, you realize something very important: “I can’t survive with just one piece of data.” One user isn’t enough.One product isn’t enough.One error message… is never enough 😅 And right at that moment, JavaScript hands you this gift:🎁 Array 📦 […]
Continue Reading