StackInfosys

StackInfosys

Share

Tutorials for programming, web development and tech blog!

06/04/2022

💡

Optimize your pages for faster loading.

đŸ–ŧī¸ Optimize images
đŸ”Ŋ Minify Javascript and CSS files
đŸ—œī¸ Enable server-side compression
🔧 Remove render-blocking Javascript
đŸ’ŧ Leverage browser caching
🧕 Use Expires Headers
🌐 Use CDN

31/03/2022

āϏāĻžāϧāĻžāϰāύāϤ āĻ“ā§Ÿā§‡āĻŦ āĻāĻĒā§āϞāĻŋāϕ⧇āĻļāύ āĻĄā§‡āϭ⧇āϞāĻĒāĻŽā§‡āĻ¨ā§āϟ āύāĻŋā§Ÿā§‡ āϝāĻžāϰāĻž āĻ•āĻžāϜ āĻ•āϰ⧇āύ āϤāĻžāĻĻ⧇āϰāϕ⧇ āϚāĻžāϰāϟāĻŋ āĻ­āĻžāϗ⧇ āĻ­āĻžāĻ— āĻ•āϰāĻž āϝāĻžā§Ÿ āĨ¤

#āĻĢā§āϰāĻ¨ā§āϟ_āĻāĻ¨ā§āĻĄ_āĻĄā§‡āϭ⧇āϞāĻĒāĻžāϰ
āĻāĻ•āϜāύ āĻĢā§āϰāĻ¨ā§āϟ āĻāĻ¨ā§āĻĄ āĻĄā§‡āϭ⧇āϞāĻĒāĻžāϰ āϏāĻžāϧāĻžāϰāύāϤ āĻāĻ•āϟāĻž āĻ“ā§Ÿā§‡āĻŦāϏāĻžāχāϟ āĻŦāĻž āĻ“ā§Ÿā§‡āĻŦ āĻ…ā§āϝāĻžāĻĒ⧇āϰ āĻ­āĻŋāϜ⧁⧟āĻžāϞ āφāωāϟāϞ⧁āĻ• āύāĻŋā§Ÿā§‡ āĻ•āĻžāϜ āĻ•āϰ⧇āύ āϝ⧇āϟāĻž āφāĻŽāϰāĻž āĻŦā§āϰāĻžāωāϜāĻžāϰ⧇ āĻĻ⧇āĻ–āϤ⧇ āĻĒāĻžāχ āĨ¤ āĻĢā§āϰāĻ¨ā§āϟ āĻāĻ¨ā§āĻĄ āĻĄā§‡āϭ⧇āϞāĻĒāĻŽā§‡āĻ¨ā§āϟ āĻļāĻŋāĻ–āϤ⧇ āϗ⧇āϞ⧇ ā§Ē āϟāĻŋ āϜāĻŋāύāĻŋāϏ āϜāĻžāύāĻž āĻŦāĻžāĻ§ā§āϝāϤāĻžāĻŽā§āϞāĻ• ; āĻāϗ⧁āϞ⧋ āĻšāϞ⧋ āĻāχāϚāϟāĻŋāĻāĻŽāĻāϞ , āϏāĻŋāĻāϏāĻāϏ , āϜāĻžāĻ­āĻžāĻ¸ā§āĻ•ā§āϰāĻŋāĻĒā§āϟ āĻ“ āĻĄāĻŽ āĨ¤ āĻāϰāĻĒāϰ āĻĻāϰāĻ•āĻžāϰ āĻ“ āϚāĻžāĻšāĻŋāĻĻāĻž āĻ…āύ⧁āϝāĻžā§Ÿā§€ āϏāĻŋāĻāϏāĻāϏ āĻ“ āϜāĻžāĻ­āĻžāĻ¸ā§āĻ•ā§āϰāĻŋāĻĒā§āϟ āĻāϰ āĻŦāĻŋāĻ­āĻŋāĻ¨ā§āύ āϞāĻžāχāĻŦā§āϰ⧇āϰ⧀ āĻŦāĻž āĻĢā§āϰ⧇āĻŽāĻ“ā§ŸāĻžāĻ°ā§āĻ• āϝ⧇āĻŽāύ āĻŦ⧁āϟāĻ¸ā§āĻŸā§āĻ°ā§āϝāĻžāĻĒ , āχāωāφāχāĻ•āĻŋāϟ , āĻĢāĻžāωāĻ¨ā§āĻĄā§‡āĻļāύ , āϏāĻŋāĻŽā§āϝāĻžāύāϟāĻŋāĻ• āχāωāφāχ , āĻŽā§āϝāĻžāĻŸā§‡āϰāĻŋ⧟āĻžāϞāĻžāχāϜ āϏāĻŋāĻāϏāĻāϏ , āĻ­ā§āϝ⧁ , āĻ…āϰ⧇āϞāĻŋ⧟āĻž , āϰāĻŋā§Ÿā§āϝāĻžāĻ•ā§āϟ , āĻĒāϞāĻŋāĻŽāĻžāϰ , āĻ…ā§āϝāĻžāĻ™ā§āϗ⧁āϞāĻžāϰ āĻļāĻŋāĻ–āϤ⧇ āĻĒāĻžāϰ⧇āύāĨ¤

#āĻŦā§āϝāĻžāĻ•_āĻāĻ¨ā§āĻĄ_āĻĄā§‡āϭ⧇āϞāĻĒāĻžāϰ
āĻŦā§āϝāĻžāĻ• āĻāĻ¨ā§āĻĄ āĻĄā§‡āϭ⧇āϞāĻĒāĻžāϰāϰāĻž āϏāĻžāϧāĻžāϰāύāϤ āĻāĻ•āϟāĻž āĻ“ā§Ÿā§‡āĻŦāϏāĻžāχāϟ āĻŦāĻž āĻ“ā§Ÿā§‡āĻŦ āĻ…ā§āϝāĻžāĻĒ⧇āϰ āĻĢāĻžāĻ‚āĻļāύāĻžāϞāĻŋāϟāĻŋāϰ āϜāĻ¨ā§āϝ āĻĒā§āĻ°ā§Ÿā§‹āϜāĻ¨ā§€ā§Ÿ āϞāϜāĻŋāĻ• āĻ˛ā§‡ā§ŸāĻžāϰ āϞāĻŋāϖ⧇ āĻĨāĻžāϕ⧇āύ āĨ¤ āĻŦā§āϝāĻžāĻ• āĻāĻ¨ā§āĻĄā§‡ āϝ⧇ āφāϏāϞ⧇ āĻ•āϤ āĻ•āĻŋ āĻŦā§āϝāĻžāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āϝāĻžā§Ÿ āĻŦāϞ⧇ āĻļ⧇āώ āĻ•āϰāĻž āϝāĻžāĻŦ⧇āύāĻž āĨ¤ āĻŦā§āϝāĻžāĻ• āĻāĻ¨ā§āĻĄ āĻĒā§āϰ⧋āĻ—ā§āϰāĻžāĻŽāĻŋāĻ‚ āĻāϰ āϜāĻ¨ā§āϝ āφāĻĒāύāĻŋ āϏāĻŋ++ āĻĨ⧇āϕ⧇ āĻļ⧁āϰ⧁ āĻ•āϰ⧇ āĻĒāĻŋāĻāχāϚāĻĒāĻŋ , āϜāĻžāĻ­āĻžāĻ¸ā§āĻ•ā§āϰāĻŋāĻĒā§āϟ , āϏāĻŋ āĻļāĻžāĻ°ā§āĻĒ , āϜāĻžāĻ­āĻž , āĻ—ā§‹āĻ˛ā§āϝāĻžāĻ‚ , āĻĒāĻžāχāĻĨāύ , āϰ⧁āĻŦā§€ , āϜ⧁āϞāĻŋ⧟āĻž , āĻāϰāĻ˛ā§āϝāĻžāĻ‚ , āϞāĻŋāĻ¸ā§āĻĒ āϏāĻš āφāϰ⧋ āĻ…āύ⧇āĻ•āĻ•āĻŋāϛ⧁āχ āĻŦā§āϝāĻžāĻŦāĻšāĻžāϰ āĻ•āϰāϤ⧇ āĻĒāĻžāϰāĻŦ⧇āύ āĨ¤ āϚāĻžāχāϞ⧇ āĻāϗ⧁āϞ⧋āϰ āϭ⧇āϤāϰ āĻĨ⧇āϕ⧇ āϝ⧇ āϕ⧋āύ āĻāĻ•āϟāĻž āĻļāĻŋāĻ–āϤ⧇ āĻĒāĻžāϰ⧇āύ āĨ¤ āĻŦā§āϝāĻžāĻ• āĻāĻ¨ā§āĻĄā§‡āϰ āϜāĻ¨ā§āϝ āϜāύāĻĒā§āϰāĻŋ⧟ āĻ•āĻŋāϛ⧁ āĻĢā§āϰ⧇āĻŽāĻ“ā§ŸāĻžāĻ°ā§āĻ• āĻšāĻšā§āϛ⧇ āĻāĻāϏāĻĒāĻŋ āĻĄāϟāύ⧇āϟ , āĻāĻ•ā§āϏāĻĒā§āϰ⧇āϏ , āϰ⧁āĻŦā§€ āĻ…āύ āϰ⧇āχāϞāϏ , āĻ¸ā§āĻĒā§āϰāĻŋāĻ‚ , āĻœā§āϝāĻžāĻ™ā§āĻ—ā§‹ āχāĻ¤ā§āϝāĻžāĻĻāĻŋ āĨ¤ āĻāĻ›āĻžā§œāĻžāĻ“ āĻŦā§āϝāĻžāĻ• āĻāĻ¨ā§āĻĄ āĻĄā§‡āϭ⧇āϞāĻĒāĻžāϰ āĻšāϤ⧇ āϗ⧇āϞ⧇ āφāĻĒāύāĻžāϰ āĻĄāĻžāϟāĻžāĻŦ⧇āϜ āϏāĻŽā§āĻĒāĻ°ā§āϕ⧇ āϜāĻžāύāĻž āĻĨāĻžāĻ•āϤ⧇āχ āĻšāĻŦ⧇ āĨ¤ āĻĄāĻžāϟāĻžāĻŦ⧇āϜ āϏāĻžāϧāĻžāϰāύāϤ āĻĻ⧁āχ āϧāϰāύ⧇āϰ āĻšā§Ÿ ; āϝ⧇āĻŽāύ āϰāĻŋāϞ⧇āĻļāύāĻžāϞ āĻĄāĻžāϟāĻžāĻŦ⧇āϜ āĻ“ āύ⧋-āϏāĻŋāĻ•ā§ā§Ÿā§‡āϞ āĻĄāĻžāϟāĻžāĻŦ⧇āϜ āĨ¤ āϰāĻŋāϞ⧇āĻļāύāĻžāϞ āĻĄāĻžāϟāĻžāĻŦ⧇āϜ āĻāϰ āωāĻĻāĻžāĻšāϰāύ āĻšāĻšā§āϛ⧇ āĻŽāĻžāχāϏāĻŋāĻ•ā§ā§Ÿā§‡āϞ , āĻŽāĻžāχāĻ•ā§āϰ⧋āϏāĻĢāϟ āϏāĻŋāĻ•ā§ā§Ÿā§‡āϞ āϏāĻžāĻ°ā§āĻ­āĻžāϰ , āĻĒā§‹āĻˇā§āϟāĻ—ā§āϰ⧇ āϏāĻŋāĻ•āĻ‰ā§Ÿā§‡āϞ , āĻŽāĻžāϰāĻŋ⧟āĻž āĻĄāĻŋāĻŦāĻŋ , āĻ“āϰāĻžāĻ•āϞ āĻĄāĻŋāĻŦāĻŋ/⧍ āχāĻ¤ā§āϝāĻžāĻĻāĻŋ āĨ¤ āφāĻŦāĻžāϰ āύ⧋-āϏāĻŋāĻ•ā§ā§Ÿā§‡āϞ āĻĄāĻžāϟāĻžāĻŦ⧇āϜ āĻŽā§‹āĻ™ā§āĻ—ā§‹āĻĄāĻŋāĻŦāĻŋ , āĻ•āĻžāωāϚ-āĻĄāĻŋāĻŦāĻŋ , āĻ…ā§āϝāĻžāĻĒāĻžāϚāĻŋ āĻ•ā§āϝāĻžāϏāĻžāĻ¨ā§āĻĻā§āϰāĻž , āϰ⧇āĻĄāĻŋāĻļ āχāĻ¤ā§āϝāĻžāĻĻāĻŋ āĨ¤ āĻāχ āĻĻ⧁āχ āĻĒā§āϰāĻ•āĻžāϰ⧇āϰ āϝ⧇ āϕ⧋āύ āĻāĻ•āϟāĻŋ āφāĻĒāύāĻžāϰ āϜāĻžāύāĻž āĻĨāĻžāĻ•āϤ⧇āχ āĻšāĻŦ⧇āĨ¤

#āĻĄā§‡āĻ­_āĻ…āĻĒā§āϏ
āϏāĻžāϧāĻžāϰāĻŖāϤ āϝāĻžāϰāĻž āĻ“ā§Ÿā§‡āĻŦ āĻāĻĒā§āϞāĻŋāϕ⧇āĻļāύ āĻŦāĻž āϏāĻĢāϟāĻ“ā§Ÿā§āϝāĻžāϰ āϗ⧁āϞ⧋ āϏāĻžāĻ°ā§āĻ­āĻžāϰ⧇ āχāĻŽāĻĒā§āϞāĻŋāĻŽā§‡āĻ¨ā§āϟ āĻ•āϰ⧇, āϰāĻ•ā§āώāĻŖāĻžāĻŦ⧇āĻ•ā§āώāĻŖ āĻ•āϰ⧇ āĻĨāĻžāϕ⧇ āϤāĻžāĻĻ⧇āϰāϕ⧇ āĻĄā§‡āĻ­ āĻ…āĻĒā§āϏ āĻŦāϞāĻž āĻšā§Ÿā§‡ āĻĨāĻžāϕ⧇āĨ¤

#āĻĢ⧁āϞāĻ¸ā§āĻŸā§āϝāĻžāĻ•_āĻĄā§‡āϭ⧇āϞāĻĒāĻžāϰ
āĻĢ⧁āϞāĻ¸ā§āĻŸā§āϝāĻžāĻ• āĻĄā§‡āϭ⧇āϞāĻĒāĻžāϰ = āĻĢā§āϰāĻ¨ā§āϟ āĻāĻ¨ā§āĻĄ āĻĄā§‡āϭ⧇āϞāĻĒāĻžāϰ + āĻŦā§āϝāĻžāĻ• āĻāĻ¨ā§āĻĄ āĻĄā§‡āϭ⧇āϞāĻĒāĻžāϰ + āĻĄā§‡āĻ­ āĻ…āĻĒā§āϏāĨ¤ āĻŦ⧁āĻāϤ⧇āχ āĻĒāĻžāϰāϛ⧇āύ āϝāĻžāϰāĻž āĻāĻ•āχ āϏāĻžāĻĨ⧇ āĻ“ā§Ÿā§‡āĻŦ⧇āϰ āϤāĻŋāύ āĻāĻ¨ā§āĻĄā§‡āχ āϏāĻŽāĻžāύ āĻ­āĻžāĻŦ⧇ āĻšāĻžāϤ āϚāĻžāϞāĻžāϤ⧇ āĻĒāĻžāϰ⧇āύ āϤāĻžāϰāĻžāχ āĻšāĻšā§āϛ⧇āύ āĻĢ⧁āϞāĻ¸ā§āĻŸā§āϝāĻžāĻ• āĻĄā§‡āϭ⧇āϞāĻĒāĻžāϰ āĨ¤
āĻāĻ–āύ āφāĻĒāύāĻŋ āĻ āĻŋāĻ• āĻ•āϰ⧁āύ āφāĻĒāύāĻŋ āφāϏāϞ⧇ āϕ⧋āύ āϧāϰāύ⧇āϰ āĻĄā§‡āϭ⧇āϞāĻĒāĻžāϰ āĻšāĻŋāϏ⧇āĻŦ⧇ āĻĒāϰāĻŋāĻĒ⧁āĻ°ā§āύ āĻšāϤ⧇ āϚāĻžāύ āĨ¤ āĻĢā§āϰāĻ¨ā§āϟ āĻāĻ¨ā§āĻĄ āĻĄā§‡āϭ⧇āϞāĻĒāĻžāϰ , āĻŦā§āϝāĻžāĻ• āĻāĻ¨ā§āĻĄ āĻĄā§‡āϭ⧇āϞāĻĒāĻžāϰ āύāĻžāĻ•āĻŋ āĻĢ⧁āϞāĻ¸ā§āĻŸā§āϝāĻžāĻ•, āύāĻžāĻ•āĻŋ āĻĄā§‡āĻ­ āĻ…āĻĒā§āϏ ? āĻāϰāĻĒāϰ āĻŦ⧇āϛ⧇ āύāĻŋāύ āφāĻĒāύāĻžāϰ āωāĻĒāϝ⧁āĻ•ā§āϤ āĻļ⧇āĻ–āĻžāϰ āĻŦāĻŋāώ⧟āĻŦāĻ¸ā§āϤ⧁āĨ¤

31/03/2022

The list of 11 Websites To Learn Coding Online For Free.

✅ coursera. org
✅ sololearn. com
✅ programiz. com
✅ codewars. com
✅ w3schools. com
✅ studytonight. com
✅ khanacademy. org
✅ freecodecamp. org
✅ codecademy. com
✅ geeksforgeeks. org
✅ upskillcourses. com
✅ theodinproject. com

29/03/2022


Nullish coalescing operator '??' vs Logical OR operator '||'

The major difference between them is that:
|| returns the first truthy value.
?? returns the first defined value.

Example:

const marks = 0;
console.log(marks || 100); // 100
console.log(marks ?? 100); // 0

sometimes we have to consider 0 or ' ' as valid, then the ?? operator works better.

28/03/2022

Blogs to Follow as a Web Application Developer:

✅ Dev.To
✅ Medium
✅ Codrops
✅ Sitepoint
✅ Css-tricks
✅ Hashnode
✅ Speckyboy
✅ Flaviocopes
✅ Envato Tuts+
✅ Creative Bloq
✅ Freecodecamp
✅ StackInfosys

27/03/2022

To learn more to code, one piece of advice is more important than anything else:

Write lots of code.

You won't become developer-only by watching tutorials and reading articles.

You have to put in the work, get your hands dirty, and build stuff.

By building lots of projects, your skills will accumulate quickly and you'll begin to recognize patterns.

And if you can get into the habit of coding every single day, success is basically inevitable.

27/03/2022

There are 9 HTTP request methods:
- GET
- PUT
- POST
- HEAD
- TRACE
- PATCH
- DELETE
- OPTIONS
- CONNECT
HTTP request methods are the actions initiated from the client-side to perform certain actions.
These HTTP request methods are sometimes called nouns or referred to as HTTP verbs.

The GET method is the most common of all these request methods. It is used to get the desired resources from the server.
The GET methods don't affect the state of the server.

The POST method is used to submit the information to the server. As we're submitting data, the POST method often changes the state of the server.

The PUT method is used whenever you need to change the resource. The resource is already a part of resource collection.

The PATCH request method is used to modify only the necessary part of the data or response. The PATCH method doesn't modify the entire response.

The server sends the response without the body. The HEAD method asks for a response identical to that of a GET request, but it is faster as small data is transferred.

As the name says, the DELETE request method is used to delete the specified resource. It requests that the origin server delete the resource identified by the Request-URL.

The CONNECT method establishes two-way communication between the client and the requested resource.
CONNECT request method is used to push your proxy to start an HTTP tunnel.

The OPTIONS method is used to describe the communication options available for the target resource. The client can either specify a URL for describing the communication options available for a specific resource or an asterisk (*) if they want to target the server.

The TRACE method is generally used for debugging. It performs a message loop-back test along the path to the desired data.

Want your school to be the top-listed School/college in Dhaka?

Click here to claim your Sponsored Listing.

Location

Telephone

Address


Khilkhet
Dhaka
1229