📣 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

Nodejs interview questions

Based on current benchmarks and user reports, Microsoft Edge emerges as the browser using the least memory and CPU resources on a Windows device. Here's a breakdown:

CPU:

* Microsoft Edge: Consumes the least CPU resources compared to other popular browsers.
* Opera GX: Slightly higher CPU usage than Edge, but still considerably lower than Chrome and Firefox.
* Chrome: The most CPU-intensive browser among the popular options.
* Firefox: Moderately high CPU consumption, especially with multiple tabs open.

Memory:

* Opera GX: Boasts the lowest memory usage, with features like RAM limiter and tab suspender helping to optimize resource allocation.
* Microsoft Edge: Follows closely behind Opera GX in terms of memory consumption.
* Firefox: Moderately lower memory usage than Chrome, but still higher than Opera and Edge.
* Chrome: The most memory-intensive browser, consuming substantial resources even with a few tabs open.

Here's a summary table for a quick comparison:

| Browser | CPU Usage | Memory Usage |
|---|---|---|
| Microsoft Edge | Lowest | Low |
| Opera GX | Low | Lowest |
| Firefox | Moderate | Moderate |
| Chrome | Highest | Highest |

Additional Factors to Consider:

* Extensions and Plugins: These add-ons can significantly increase resource consumption, so choose them wisely and consider disabling unused ones.
* Browsing Habits: Opening multiple tabs, watching videos, and using resource-intensive web apps can impact resource usage, regardless of the chosen browser.
* Hardware Specifications: A low-end system will benefit more from a lightweight browser like Edge or Opera GX compared to a high-end machine that can handle Chrome's heavier demands.

Conclusion:

While Microsoft Edge currently holds the crown for minimal resource consumption on Windows, Opera GX is a strong contender with its efficient memory management and unique features. Ultimately, the best browser for you depends on your specific needs, browsing habits, and hardware capabilities.

Here are some resources for further exploration:

* Which Browser Uses the Least Memory? [Answered] ([https://windowsreport.com/best-browser-low-memory/](https://windowsreport.com/best-browser-low-memory/))
* Which Browser Uses the Least RAM and CPU on Windows, macOS, and ChromeOS? ([https://rigorousthemes.com/blog/best-browsers-for-low-cpu-usage/](https://rigorousthemes.com/blog/best-browsers-for-low-cpu-usage/))

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

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

Reactjs Pagination with real API

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https://deepmind.google/technologies/gemini/#introduction

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#google #ai #gemini

https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types

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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

You can use the beforeunload event in JavaScript to display a message to the user before they leave the current page. Here's an example:

window.addEventListener('beforeunload', function (e) {
    e.preventDefault();
    e.returnValue = ''; // This is for legacy support, but the message is usually ignored
    return 'Are you sure you want to leave this page?'; // Modern browsers will display this message
});

When the user tries to leave the page, a browser dialog will typically appear with the message you've specified.

#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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🌟 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

Here's a simple table comparing the evolution of Angular and React core versions

"Simplifying Data Manipulation with JavaScript Array Methods"

Let's explore the array methods in JavaScript that can revolutionize the way you manipulate data. Buckle up for some powerful techniques! 💪

1. map() for Transforming Elements 🗺️:
Transform each element of an array without mutating the original array:

   const numbers = [1, 2, 3, 4, 5];
   const doubledNumbers = numbers.map(num => num * 2);
   

2. filter() for Selective Extraction 🕵️‍♂️:
Extract elements based on a condition with the filter method:

   const evenNumbers = numbers.filter(num => num % 2 === 0);
   

3. reduce() for Accumulating Values 📈:
Accumulate array values into a single result with reduce:

   const sum = numbers.reduce((acc, num) => acc + num, 0);
   

4. forEach() for Iteration 🔄:
Iterate through each element of an array with forEach:

   numbers.forEach(num => console.log(num));
   

5. find() and findIndex() for Search Operations 🔍:
Find the first matching element or its index using find and findIndex:

   const targetNumber = 3;
   const foundNumber = numbers.find(num => num === targetNumber);
   const foundIndex = numbers.findIndex(num => num === targetNumber);
   

6. some() and every() for Conditional Checks 🧐:
Check if at least one or every element satisfies a condition:

   const hasPositiveNumbers = numbers.some(num => num > 0);
   const areAllPositiveNumbers = numbers.every(num => num > 0);
   

7. splice() for In-Place Mutation ✂️:
Modify the original array by adding, removing, or replacing elements:

   const removedElements = numbers.splice(1, 2); // Removes elements at index 1 and 2
   

8. slice() for Non-Destructive Subarrays 🍰:
Create a new array containing a portion of the original array:

   const slicedArray = numbers.slice(1, 4); // Returns elements at index 1, 2, and 3
   

9. indexOf() and lastIndexOf() for Index Retrieval 📏:
Find the first or last occurrence index of an element:

   const indexOfThree = numbers.indexOf(3);
   const lastIndexOfThree = numbers.lastIndexOf(3);
   

10. Array.from() for Array Creation 🔄:
Create an array from an array-like or iterable object:

    const arrayFromSet = Array.from(new Set([1, 2, 2, 3])); // Removes duplicates
    

#JavaScriptArrays #DataManipulation #WebDevelopmentTips