Useful VS Code Extensions

CSS Tip💡

:empty pseudo selector is used to target elements with no children, including text nodes.

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A. Type error
The 'getFullName' will not be accessible in member. As it is defined on the constructor Person. In order to make it work, we need to make 'Person.getFullName' to 'Person.prototype.getFullName', which will make the getFullName available in all instance of Person.

JavaScript. js Explained

Laravel Tip 🚀

You can use the incrementEach() and decrementEach() methods to increment and decrement multiple columns with a single query.

What does API Gateway do?

25 Javascript path files used to store sensitive information in Web Application:-

1. /js/config.js
2. /js/credentials.js
3. /js/secrets.js
4. /js/keys.js
5. /js/password.js
6. /js/api_keys.js
7. /js/auth_tokens.js
8. /js/access_tokens.js
9./js/sessions.js
10. /js/authorization.js
11. /js/encryption.js 12. /js/certificates.js
13. /js/ssl_keys.js
14. /js/passphrases.js
15. /js/policies.js
16./js/permissions.js
17. /js/privileges.js
18. /js/hashes.js
19. /js/salts.js
20. /js/nonces.js
21. js/signatures.js
22. js/digests.js
23. js/tokens.js
24. js/cookies.js
25. /js/topsecr3tdonotlook.js

JavaScript Tip💡

You can remove whitespace from both ends of a string using the trim() method.

CSS Tip💡

You can change the default color of text selection on your web page like this

💡Javascript tip!

You can rename a property of an existing object. Here's how:

Structured way to learn JavaScript:

EASY

- What is JavaScript and its role in web development?
- Brief history and evolution of JavaScript.
- Basic syntax and structure of JavaScript code.
- Understanding variables, constants, and their declaration.
- Data types: numbers, strings, boolean, and null/undefined.
- Arithmetic, assignment, comparison, and logical operators.
- Combining operators to create expressions.
- Conditional statements (if, else if, else) for decision making.
- Loops (for, while) for repetitive tasks.
- Switch statements for multiple conditional cases.

MEDIUM:

- Defining functions, including parameters and return values.
- Function scope, closures, and their practical applications.
- Creating and manipulating arrays.
- Working with objects, properties, and methods.
- Iterating through arrays and objects.
- Understanding the Document Object Model (DOM).
- Selecting and modifying HTML elements with JavaScript.
- Handling events (click, submit, etc.) with event listeners.
- Using try-catch blocks to handle exceptions.
- Common error types and debugging techniques.

HARD:

- Callback functions and their limitations.
- Dealing with asynchronous operations, such as AJAX requests.
- Promises for handling asynchronous operations.
- Async/await for cleaner asynchronous code.
- Arrow functions for concise function syntax.
- Template literals for flexible string interpolation.
- Destructuring for unpacking values from arrays and objects.
- Spread/rest operators.
- Design Patterns
- Writing unit tests with testing frameworks.
- Code optimization techniques.

Learning JavaScript in this structured way is like building a strong foundation before diving into any fancy frameworks. These topics are like the building blocks of JavaScript, and they'll help you feel confident in your skills.
But remember, there's no one-size-fits-all approach to understanding JavaScript. I might have missed some important concepts along the way. So, if you think there's something crucial that I didn't cover, please feel free to mention it. Your input is valuable!

The output will be 456

Here's how:

- a is initialized as an empty object using {}.
- b is initialized as an object with a property key set to the string 'b'.
- c is initialized as an object with a property key set to the string 'c'

The code assigns values to properties of a using b and c as keys. But, when a non-string value is used as a property key, it is automatically converted to a string.

Then:
- a[b] = 123 assigns 123 to the property with key 'object Object' in a.
- a[c] = 456 assigns 456 to the property with key 'object Object' in a. This overwrites the previous value.

Finally, console.log(a[b]) is called, that accesses the value of the property with key 'object Object' in the a object and it returns 456 since the value was overwritten with 456

Top 10 Platforms To Learn JavaScript Coding in 2024

JavaScript has become a crucial foundation to website making, and webpages that operate smoothly today, utilize and owe their interactive and dynamic characteristics to JavaScript. Along with the programming language of JavaScript, which is a must for every web developer, the presence of excellent learning platforms emerges as an essential solution for the rising need of adept JavaScript developers. Whether getting started with coding as a newbie or a JavaScript developer ready to improve, these top-tier online platforms are like the best place to learn JS from.


Source-Link: analyticsinsight

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