17. JavaScript Skills Certification Test (Intermediate)
The test covers topics like Design Patterns, Memory management, concurrency models, and event loops.

👉 https://www.hackerrank.com/skills-verification/javascript_intermediate

⚛️ React JS

18. React JS for Beginners
This course is taught hands-on by experts. Learn prerequisites of HTML, CSS, and Javascript. Also, learn to create a React App.

👉 https://www.mygreatlearning.com/academy/learn-for-free/courses/react-js-tutorial

19. React JavaScript - Fundamentals to Coding
You will learn to set up your first React environment, components, keys, and props. It also discusses folder structure, CSS styling, and React operators.

👉 https://alison.com/course/react-javascript-fundamentals-to-coding-and-new-beginnings

20. Front-End Development Libraries
You'll learn how to add logic to your CSS styles, extend them with Sass, and work with Bootstrap.

Later, you'll build a shopping cart and other applications to learn how to create powerful SPAs with React and Redux.

👉 https://www.freecodecamp.org/learn/front-end-development-libraries/

21. React Essential Training
You will learn how to set up Chrome tools for React; create new components; work with the built-in Hooks in React; use the Create React App to run tests and more.

👉 https://www.linkedin.com/learning/react-js-essential-training-14836121

22. React Skills Certification Test
The test covers topics like Basic Routing, Rendering Elements, State Management (Internal Component State), Handling Events, ES6 and JavaScript, and Form Validation.

👉 https://www.hackerrank.com/skills-verification/react_basic

Source: https://dev.to/madza/26-frontend-certifications-for-web-developers-4md7

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#js #javascript #React #react #ReactJS #reactjs #web #webdev #developer #programming #webdeveloper #webdevelopment #learnprogramming #developernijat #aliyevsdevtales

JavaScript Power !

@colorfulcoding

More: https://youtube.com/@ColorfulCoding?si=IEM2cirjboZ63g2f

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📌 JavaScript Tip: Understand the concept of 'closures' - functions that remember the scope in which they were created. Closures allow functions to access and use variables from their parent function even after the parent function has finished executing. Example:

function outerFunction() {
  const outerVar = 'I am from the outer function';
  
  function innerFunction() {
    console.log(outerVar); // Accessing outerVar from the outer function
  }
  
  return innerFunction;
}

const myFunction = outerFunction();
myFunction(); // Output: 'I am from the outer function'

#JavaScript #Closures #CodingConcepts

📣 New video out of

https://youtu.be/96NjLxhApCQ?si=PD2HV6ZRxi4UBnI_

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#javascript #coding #nodejs #expressjs #mernstack #CPU #memory #networking #programming #API #Server #statistics #developernijat #aliyevsdevtales

https://dev.to/pachicodes/introduction-to-data-structures-in-javascript-3l87

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#js #javascript #programming #coding #learning #data #datastructures #developernijat #aliyevsdevtales

https://youtu.be/M0Emo-yyGMk?si=QU1RV6xujo1I1_V4

Reactjs Pagination with real API

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#js #javascript #React #ReactJS #pagination #developernijat #aliyevsdevtales #programming #coding #frontend

https://youtu.be/qFyzvIlAZSU?si=aeUpXZ53p2WaZdR6

ReactJS & Google AI Gemini API Integration.
Experience Google’s largest and most capable AI model.

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REPO: https://github.com/.../Gemini-API-integration-with-ReactJS

#react #reactjs #google #gemini #ai #gemini api #google gemini #integration #aistudio #buildwithgemini #ExperienceGoogle #GoogleCloud #IntegrateGemini #GeminiPro #Geminideveloper #GeminiNano #GoogleAIJavaScript #GoogleAI #generativeAI #deepmind #geminiera #javascript #developernijat #aliyevsdevtales #vitejs #frontend #web #webdevelopment

#JavaScript - Why indexes start from 0 ? 🤔

There are different reasons why most programming languages, including #JavaScript, use zero-based indexing for arrays. Here are some of them:

- Zero-based indexing is more natural for pointer arithmetic, which is how compilers access array elements. For example, if arr is an array of integers, then arr[i] is equivalent to *(arr + i), where arr is the address of the first element and i is the offset from that address. Using zero as the offset means no extra computation is needed to access the first element.

- Zero-based indexing is more efficient for storing and retrieving multidimensional arrays, especially in row-major order. This is because the formula for calculating the address of an element in a two-dimensional array is simpler when the indices start from zero. For example, if arr is a two-dimensional array of size m x n, then the address of arr[i][j] is address + [(i)*n + (j)] * (sizeof(int)), where address is the base address of the array. This formula involves only four operations, whereas if the indices start from one, it would involve six operations.

- Zero-based indexing is more consistent with #mathematical notation, such as set theory and linear #algebra. For example, the first element of a set is usually denoted by a_0, and the first element of a vector is usually denoted by v_0. Using zero-based indexing makes it easier to translate these concepts into code.

I hope this helps you understand why #JavaScript and other languages use zero-based indexing for arrays.

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#JS #frontend #javascript #Web #aliyevsdevtales #developernijat #index

🌟 JavaScript Tip: Discover the power of 'Map', 'Filter', and 'Reduce' - these array methods are your best friends when it comes to manipulating arrays in a functional and elegant way.

- 'Map': Transform each element in an array into something else.
- 'Filter': Create a new array with elements that pass a certain condition.
- 'Reduce': Condense an array into a single value.

Example:

// Map
const numbers = [1, 2, 3, 4, 5];
const doubled = numbers.map(num => num * 2);
console.log(doubled); // Output: [2, 4, 6, 8, 10]

// Filter
const evenNumbers = numbers.filter(num => num % 2 === 0);
console.log(evenNumbers); // Output: [2, 4]

// Reduce
const sum = numbers.reduce((acc, curr) => acc + curr, 0);
console.log(sum); // Output: 15

#JavaScript #ArrayMethods #CodingTips

🔍 JavaScript Tip: Master 'Regular Expressions' (RegEx) - a powerful tool for pattern matching and manipulating strings. RegEx allows you to search, extract, and replace text based on patterns, providing immense flexibility in string operations. Example:

// Checking if a string contains a pattern
const text = 'Hello, world!';
const pattern = /hello/i; // Case-insensitive search
const isMatch = pattern.test(text);
console.log(isMatch); // Output: true

// Extracting matches from a string
const sentence = 'The quick brown fox jumps over the lazy dog';
const wordPattern = /[a-z]+/gi; // Match all words
const words = sentence.match(wordPattern);
console.log(words); // Output: ['The', 'quick', 'brown', ...]

// Replacing text based on a pattern
const phoneNumber = '123-456-7890';
const newPhoneNumber = phoneNumber.replace(/-/g, ''); // Remove dashes
console.log(newPhoneNumber); // Output: '1234567890'

#JavaScript #RegularExpressions #CodingTips

🛠️ JavaScript Tip: Utilize the 'Object Destructuring' feature to extract values from objects effortlessly. It's a concise and powerful way to assign variables from object properties. Example:

const user = { name: 'Alice', age: 28, country: 'Wonderland' };

// Without destructuring
const name = user.name;
const age = user.age;

// With destructuring
const { name, age } = user;

#JavaScript #Destructuring #CodingTips

Bulletproof React - A simple, scalable, and powerful architecture for building production ready React applications.

Table Of Contents:
💻 Application Overview
⚙️ Project Configuration
👁️ Style Guide
🗄️ Project Structure
🧱 Components And Styling
📡 API Layer
🗃️ State Management
🧪 Testing
⚠️ Error Handling
🔐 Security
🚄 Performance
🌐 Deployment
📚 Additional Resources

https://github.com/alan2207/bulletproof-react

#useful #faydali #JS #javascript #react #ReactJS #CleanCode #architecture #performance #styleguide #developernijat #aliyevsdevtales

JavaScript Async & Defer :

👉 "async" Attribute:
- When you include the async attribute in a <script> tag, it indicates to the browser that the script can be downloaded asynchronously. The script will be downloaded in the background while the HTML parsing continues.
- Once the script is downloaded, it will execute immediately, regardless of whether the HTML parsing is complete.
- Multiple scripts with the async attribute can be downloaded concurrently, and they will execute in the order they complete downloading.

👉 "defer" Attribute:
- When you include the defer attribute in a <script> tag, it indicates to the browser that the script should be fetched asynchronously, but it should not execute until the HTML parsing is complete.
- Multiple scripts with the defer attribute will be fetched in order, but they will not execute until the HTML parsing is complete.
- Scripts with defer maintain their order of execution to each other and are executed in the order they appear in the document.

👉 Best Practices:
- Use asynchronous (async) for independent scripts that do not rely on the DOM and can be executed out of order.
- Use deferred (defer) for scripts that depend on the DOM and need to execute in a specific order, especially when performing DOM manipulation.
- Avoid synchronous JavaScript whenever possible, as it negatively impacts page speed and user experience.

#javascript #typescript #html #frontend #backend #developer #application #website #development #reactjs #vuejs #vitejs #performance

The main difference between the nullish coalescing operator (??) and the logical OR operator (||) is how they handle falsy values such as 0, '', false, null, undefined, and NaN.

- With the || operator, if the first operand is falsy, it will return the second operand regardless of whether it's falsy or not.
- With the ?? operator (nullish coalescing), it only returns the second operand

In result1, 0 is falsy, so other (which is 5) is returned. In result2, 0 is not considered nullish, so something (which is 0) is returned.

#javascript #js #jstiptricks #nullishcoalescing #or #jsoperator #frontend #backend #programming #web

💡 The Power of #JavaScript

1. Web Development: JavaScript əsasən dinamik və interaktiv veb saytlarının yaradılması üçün istifadə olunur. Bu, form validasiyası, interaktiv xəritələr, animasiyalar və daha bir çoxunu veb səhifələrə əlavə etməyə imkan verir.

2. Frontend Development: JavaScript, veb tətbiqlərinin ön tərəfini inşa etmək üçün əsasən istifadə olunur. React, Angular və Vue.js kimi çərçivələr proqramçıların kompleks istifadəçi interfeysləri və tək səhifəli tətbiqləri (SPAlar) yaratmalarına imkan verir.

3. Backend Development: Node.js-in təqdimatı ilə JavaScript artıq server tərəfli inkişaf üçün istifadə olunur. Proqramçılar JavaScript istifadə edərək sürətli və effektiv veb serverləri və API-larını yarada bilərlər.

4. Mobil App Development: React Native və Ionic kimi çərçivələr proqramçıların JavaScript istifadə edərək iOS və Android platformaları üçün mobil tətbiqlər yaratmasına imkan verir.

5. Game Development: JavaScript, Phaser və Three.js kimi kitabxanalarla birgə browser-əsaslı oyunlar və interaktiv təcrübələr yaratmaq üçün istifadə oluna bilər.

6. Desktop App Development: Electron kimi çərçivələr proqramçıların HTML, CSS və JavaScript kimi veb texnologiyalarını istifadə edərək masaüstü tətbiqlər yaratmalarına imkan verir.

7. Serverless Computing: JavaScript, AWS Lambda və Google Cloud Functions kimi serverless hesablama platformaları üçün istifadə oluna bilər, bu, serverless tətbiqlər və API-ların yaradılmasına imkan verir.

8. Data Visualization: D3.js kimi kitabxanalar proqramçıların veb səhifələrində məlumatların anlamlı şəkildə göstərilməsi üçün interaktiv məlumat visualizasiyaları və xəritələr yaratmalarına imkan verir.

#js #javascript #web #powerofjavascript #frontend #backend #development

🎉 JavaScript Fun Fact: Arrow functions aren't just a shorter syntax for writing functions, they also have a different behavior when it comes to the this keyword. Unlike regular functions, arrow functions do not have their own this context. Instead, they inherit the this value from the surrounding code.

🤔 Did You Know? Understanding the behavior of this in arrow functions can help you write cleaner and more predictable code, especially in complex JavaScript applications.

#FunFact #CodingTrivia #Web #JavaScript #CodingTips #WebDevelopment #Programming

🔍 JavaScript Tip: Have you ever needed to remove duplicate elements from an array? JavaScript's Set object can come to the rescue! By converting your array to a Set, you automatically remove duplicates. Check it out.

✨ Pro Tip: Remember, Sets only store unique values, so duplicates are automatically removed when converting an array to a Set. Then, you can convert it back to an array using the spread operator [... ].

#JavaScript #CodingTips #ArrayManipulation #WebDevelopment

📅 The powerful Date object for handling dates and times in JavaScript!

Whether you're working on scheduling tasks, displaying time-sensitive information, or calculating durations, the Date object has got you covered. Check out this example:

Note: The Date object offers a wide range of methods and properties for handling date and time-related tasks, such as getting and setting specific date components, calculating differences between dates, and formatting dates for display.

Stay time-savvy! 🕒💡 #JavaScript #DateObject #TimeManagement #Programming

🔍 Exploring JavaScript Variable Storage in Memory: Ever wondered where JavaScript variables are stored in your computer's memory? Let's dive into the inner workings of memory allocation in JavaScript!

💾 Memory Allocation:

Stack: JavaScript variables are typically stored in the stack memory when they are primitives (e.g., numbers, strings, booleans) or references to objects.
Heap: Objects and complex data structures (arrays, objects, functions) are stored in the heap memory. When you create an object in JavaScript, its properties and methods are stored in the heap, and the variable in the stack holds a reference to its memory location.

📝 Variable Lifecycle:

Declaration: When you declare a variable in JavaScript, space is allocated for it in the stack memory.
Assignment: If the variable is assigned a primitive value, it's stored directly in the allocated stack memory space. If it's assigned a reference to an object, the reference is stored in the stack memory, and the object itself is stored in the heap memory.
Scope: Variables have a specific scope (global, function, or block), which determines their lifetime and accessibility in the stack memory.
Garbage Collection: JavaScript engines automatically manage memory allocation and deallocation through garbage collection. Unused objects in the heap memory are periodically identified and removed to free up space.

🔑 Key Points:

Understanding memory allocation in JavaScript helps optimize code performance and memory usage.
Memory leaks can occur when objects are no longer needed but still referenced, preventing garbage collection from reclaiming their memory.

🛠️ Takeaway: By understanding how JavaScript variables are stored in memory, you can write more efficient and memory-friendly code, minimizing memory leaks and optimizing performance.

📚 Further Reading: Explore topics like memory management, memory profiling tools, and strategies for optimizing memory usage in JavaScript applications.

Dive deeper into JavaScript memory allocation! 🧠🔢 #JavaScript #MemoryAllocation #HeapMemory #StackMemory #GarbageCollection

The evolution of #frontend #developer #job requirements over the years (2000-2024)

Here's a list format for the comparison of frontend developer job requirements between 2000 and 2024:

#2000

- HTML
- Basic inline styles or separate CSS
- Minimal JavaScript (if any)
- Limited focus on browser compatibility (often Internet Explorer)
- Rarely considered responsive design
- Basic understanding of UI/UX principles (if any)

#2024

- #HTML, #CSS, #JavaScript
- Proficiency in modern frameworks/libraries like #React, #Angular, #Vue.js
- Advanced CSS techniques, preprocessors like SASS/LESS, CSS frameworks like Bootstrap
- Proficient in JavaScript, #DOM manipulation, #AJAX, #asynchronous programming
- Cross-browser compatibility, understanding of modern browser standards
- Essential knowledge of responsive #design, media queries, #responsive #frameworks like Bootstrap
- Proficiency in version control systems like #Git
- Strong understanding of UI/UX principles, usability testing, accessibility standards

This list format succinctly outlines the evolution of #frontend #developer #job requirements over the years, emphasizing the increased complexity and diversity of skills needed in the modern era.