Setting and Getting CSS Styles in JavaScript
https://blog.javascripttoday.com/blog/setting-and-getting-css-styles-in-javascript/
https://blog.javascripttoday.com/blog/setting-and-getting-css-styles-in-javascript/
๐ JavaScript Tip: When working with asynchronous code, use 'async/await' for cleaner and more readable code. 'async' marks a function as asynchronous, while 'await' pauses the function's execution until a promise is resolved.
Example:
Example:
#JavaScript #AsyncAwait #CodingTips
async function fetchData() {
try {
const response = await fetch('https://api.example.com/data');
const data = await response.json();
console.log(data);
} catch (error) {
console.error('Error:', error);
}
}
๐ก JavaScript Tip: Reduce code repetition with arrow functions. Arrow functions provide a concise way to write functions. They are especially useful for short, one-liner functions.
Example:
Example:
#JavaScript #CodingTips #WebDevelopment
// Regular function
function add(a, b) {
return a + b;
}
// Arrow function
const add = (a, b) => a + b;
๐ JavaScript Tip: Master the power of 'Promises' for handling asynchronous operations. Promises simplify working with asynchronous code and provide a cleaner way to manage success and error cases.
Example:
Example:
#JavaScript #Promises #CodingTips
const fetchData = () => {
return new Promise((resolve, reject) => {
// Simulate async operation
setTimeout(() => {
if (success) {
resolve('Data retrieved successfully');
} else {
reject('Error: Data retrieval failed');
}
}, 1000);
});
};
// Using the promise
fetchData()
.then(data => {
console.log(data);
})
.catch(error => {
console.error(error);
});
๐ฆ JavaScript Tip: Make your code more readable with the 'Ternary Operator' for concise conditional expressions. It's a great way to simplify if-else statements.
Example:
Example:
#JavaScript #CodingTips #WebDevelopment
// Regular if-else
const age = 25;
let message;
if (age >= 18) {
message = 'You are an adult';
} else {
message = 'You are a minor';
}
// Ternary Operator
const age = 25;
const message = age >= 18 ? 'You are an adult' : 'You are a minor';
The main difference between compiler and interpreter languages is in how they process and execute code:
1. Compiler Languages:
- A compiler translates the entire source code into machine code or an intermediate code before execution.
- Errors are detected after the entire code is compiled, making debugging more challenging.
- Execution is generally faster because the code is already translated.
- Examples: C, C++, Rust.
2. Interpreter Languages:
- An interpreter processes code line by line, executing it immediately without a separate compilation step.
- Errors are detected as the code is executed, allowing for easier debugging.
- Execution may be slower as code is translated on the fly.
- Examples: Python, JavaScript, Ruby.
Each approach has its own advantages and disadvantages, and the choice between them depends on the specific needs of a programming project.
1. Compiler Languages:
- A compiler translates the entire source code into machine code or an intermediate code before execution.
- Errors are detected after the entire code is compiled, making debugging more challenging.
- Execution is generally faster because the code is already translated.
- Examples: C, C++, Rust.
2. Interpreter Languages:
- An interpreter processes code line by line, executing it immediately without a separate compilation step.
- Errors are detected as the code is executed, allowing for easier debugging.
- Execution may be slower as code is translated on the fly.
- Examples: Python, JavaScript, Ruby.
Each approach has its own advantages and disadvantages, and the choice between them depends on the specific needs of a programming project.
Don't use moment in JavaScript anymore! It's no longer actively maintained. It's considered a legacy library.
Recommended:
date-fns or dayjs
- Simplicity
- Strong support
- Smaller bundle size
- Better performance
- Actively maintained
If the complexity of your date-related operations requires
using an external date library.
Recommended:
date-fns or dayjs
- Simplicity
- Strong support
- Smaller bundle size
- Better performance
- Actively maintained
If the complexity of your date-related operations requires
using an external date library.
๐ JavaScript Tip: Use 'destructuring' to extract values from arrays and objects with ease. It's a concise way to access specific elements, making your code cleaner.
Example:
Example:
#JavaScript #Destructuring #CodingTips
// Destructuring an array
const numbers = [1, 2, 3];
const [first, second, third] = numbers;
// Destructuring an object
const person = { name: 'Alice', age: 30 };
const { name, age } = person;
๐ 10 Github repositories to achieve Javascript mastery
1. 33 Concepts Every JavaScript Developer Should Know
Repo: https://github.com/leonardomso/33-js-concepts
2. Javascript questions
Repo: https://github.com/lydiahallie/javascript-questions
3. You don't know JS
Repo: https://github.com/getify/You-Dont-Know-JS
4. Airbnb Javascript style guide
Repo: https://github.com/airbnb/javascript
5. Tech interview handbook
Repo: https://github.com/yangshun/tech-interview-handbook
6. The Algorithm - Javascript
Repo: https://github.com/TheAlgorithms/Javascript
7. Awesome Javascript
Repo: https://github.com/sorrycc/awesome-javascript
8. WTFJS
Repo: https://github.com/denysdovhan/wtfjs
9. Effective Engineer Notes
Repo: https://gist.github.com/rondy/af1dee1d28c02e9a225ae55da2674a6f
10. Free programming books
Repo: https://github.com/EbookFoundation/free-programming-books
1. 33 Concepts Every JavaScript Developer Should Know
Repo: https://github.com/leonardomso/33-js-concepts
2. Javascript questions
Repo: https://github.com/lydiahallie/javascript-questions
3. You don't know JS
Repo: https://github.com/getify/You-Dont-Know-JS
4. Airbnb Javascript style guide
Repo: https://github.com/airbnb/javascript
5. Tech interview handbook
Repo: https://github.com/yangshun/tech-interview-handbook
6. The Algorithm - Javascript
Repo: https://github.com/TheAlgorithms/Javascript
7. Awesome Javascript
Repo: https://github.com/sorrycc/awesome-javascript
8. WTFJS
Repo: https://github.com/denysdovhan/wtfjs
9. Effective Engineer Notes
Repo: https://gist.github.com/rondy/af1dee1d28c02e9a225ae55da2674a6f
10. Free programming books
Repo: https://github.com/EbookFoundation/free-programming-books
GitHub
GitHub - leonardomso/33-js-concepts: ๐ 33 JavaScript concepts every developer should know.
๐ 33 JavaScript concepts every developer should know. - leonardomso/33-js-concepts
JavaScript Tip: Take advantage of 'modules' to organize and encapsulate your code. ES6 introduced native support for modules, allowing you to split your code into separate files for better maintainability. Example:
#JavaScript #Modules #CodingTips
// Exporting a function from a module
// math.js
export function add(a, b) {
return a + b;
}
// Importing and using the function in another file
// app.js
import { add } from './math';
console.log(add(5, 3)); // 8
#JavaScript #Modules #CodingTips