Uniquebeing 👻📝🌠 pfp
Uniquebeing 👻📝🌠
@uniquebeing404
Hello legends 😅 Let's get to know JavaScript in 5 mins 😳😳 🔹 JavaScript Basics ➡️JavaScript is a versatile scripting language for web development, running in the browser or on servers via Node.js. 🤝 ➡️ It's case-sensitive and dynamically typed, allowing flexibility but requiring careful type management. ➡️ Statements typically end with a semicolon (;), and comments can be single-line (//) or multi-line (/* */). These features make JavaScript a powerful tool for both front-end and back-end development.✅✅ C'mon let's go on a ride. Buckle up cause I'm gonna speed up 🔥🔥
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Uniquebeing 👻📝🌠 pfp
Uniquebeing 👻📝🌠
@uniquebeing404
We're gonna start with variables. Mind you. I'm gonna give you the definitions in a clear, short and concise way. Cause we gonna learn this in 5 mins .. hehe 🔹 Variables ➡ Use let and const for block-scoped variables ➡ Use var (function-scoped; avoid in modern code) ➡ const is used for constants (cannot be reassigned) ➡ Variable names must start with a letter, _, or $ 🔹 Data Types ➡ Primitive Types: string, number, boolean, null, undefined, symbol, bigint ➡ Reference Types: object, array, function ➡ Use typeof to check type 🔹 Operators ➡ Arithmetic: +, -, *, /, %, ** ➡ Assignment: =, +=, -=, *=, /=, etc. ➡ Comparison: ==, ===, !=, !==, >, <, >=, <= ➡ Logical: &&, ||, ! ➡ Ternary: condition ? true : false ➡ Nullish Coalescing: ?? 🔹 Control Flow ➡ if, else if, else for conditionals ➡ switch for multiple conditions ➡ for, while, do...while for loops ➡ break exits a loop, continue skips an iteration
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Uniquebeing 👻📝🌠 pfp
Uniquebeing 👻📝🌠
@uniquebeing404
🔹 Functions ➡ Declare with function keyword ➡ Arrow functions: const name = () => {} ➡ Parameters are listed in () ➡ Functions can return values using return ➡ Can be assigned to variables or passed as arguments 🔹 Arrays ➡ Arrays are list-like objects ➡ Use [] to declare ➡ Common Methods:  ➡ push(), pop(), shift(), unshift()  ➡ slice(), splice(), concat(), join()  ➡ map(), filter(), reduce(), forEach() ➡ Use length to get array size ➡ Index starts at 0
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Uniquebeing 👻📝🌠 pfp
Uniquebeing 👻📝🌠
@uniquebeing404
🔹 Objects ➡ Objects store key-value pairs ➡ Declare using { key: value } ➡ Access with dot . or bracket [] notation ➡ Use Object.keys(), Object.values(), Object.entries() ➡ Use delete to remove a property 🔹 Strings ➡ Strings can use single or double quotes ➡ Template literals use backticks `, and ${} for variables ➡ Common Methods:  ➡ length, toUpperCase(), toLowerCase()  ➡ includes(), indexOf(), slice(), substring()  ➡ replace(), split(), trim()
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Uniquebeing 👻📝🌠 pfp
Uniquebeing 👻📝🌠
@uniquebeing404
🔹 Math & Numbers ➡ Use Math object:  ➡ Math.round(), Math.floor(), Math.ceil()  ➡ Math.random(), Math.max(), Math.min() ➡ Use parseInt(), parseFloat() to convert strings ➡ Use Number() to convert any type to number 🔹 Date and Time ➡ Use new Date() to create date objects ➡ Methods:  ➡ getFullYear(), getMonth(), getDate()  ➡ getHours(), getMinutes(), getSeconds() ➡ Use set...() to change date/time values 🔹 Events ➡ Events are actions like click, hover, etc. ➡ Use addEventListener() to handle events ➡ Common Events: click, submit, input, keydown, load ➡ The event object contains details about the event
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Uniquebeing 👻📝🌠 pfp
Uniquebeing 👻📝🌠
@uniquebeing404
🔹 DOM Manipulation ➡ DOM = Document Object Model ➡ Select Elements:  ➡ getElementById(), getElementsByClassName()  ➡ querySelector(), querySelectorAll() ➡ Modify Content:  ➡ textContent, innerText, innerHTML ➡ Modify Styles:  ➡ element.style.property = value ➡ Modify Classes:  ➡ classList.add(), remove(), toggle() ➡ Create/Remove Elements:  ➡ createElement(), appendChild(), removeChild()
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Uniquebeing 👻📝🌠 pfp
Uniquebeing 👻📝🌠
@uniquebeing404
🔹 ES6+ Features ➡ let and const for modern variable declarations ➡ Arrow functions for concise syntax ➡ Template literals with ${} ➡ Destructuring objects and arrays ➡ Spread (...) and Rest (...) operators ➡ Default parameters in functions ➡ Modules using export and import ➡ Promises and async/await for handling async code 🔹 Control & Error Handling ➡ Use try, catch, finally to handle errors ➡ Use throw to create custom errors ➡ Use console.log(), console.error(), console.warn() for debugging 🔹 Loops with Arrays ➡ forEach() iterates over items ➡ map() returns a new array ➡ filter() returns items that match condition ➡ reduce() reduces to a single value ➡ some() and every() return booleans
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Uniquebeing 👻📝🌠 pfp
Uniquebeing 👻📝🌠
@uniquebeing404
🔹 JSON ➡ JavaScript Object Notation (JSON) for data exchange ➡ Use JSON.stringify() to convert object to JSON ➡ Use JSON.parse() to convert JSON to object 🔹 Local Storage ➡ localStorage.setItem(key, value) stores data ➡ localStorage.getItem(key) retrieves data ➡ localStorage.removeItem(key) deletes a key ➡ localStorage.clear() clears all storage 🔹 Fetch API ➡ Use fetch() to make HTTP requests ➡ Returns a Promise ➡ Use .then() and .catch() or async/await ➡ Can use response.json() to parse data
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Uniquebeing 👻📝🌠 pfp
Uniquebeing 👻📝🌠
@uniquebeing404
Make sure to check this websites to begin your coding journey Learn for Free HTML w3schools.com CSS web.dev/learn/css JavaScript javascript.info React react-tutorial.app API rapidapi.com/resources/ Python learnpython.org SQL SQLzap.com Git and Github git-scm.com Web3 learnweb3.io Hosting sevalla.com
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Uniquebeing 👻📝🌠 pfp
Uniquebeing 👻📝🌠
@uniquebeing404
✅✅✅
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Kusumo
@kusumoxyz
Are u hacker bro😄
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Jay_grace01
@otythegreat
Wow This is well detailed Nice one Unique
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