Swapna Kumar Panda โœจ Profile picture
Jan 19 โ€ข 8 tweets โ€ข 21 min read
๐Ÿ’ซ 100 Inspiring Accounts

If their tweets appeared in your timeline, you would definitely learn something new.

They are experts in

๐Ÿ™ Web Development
๐ŸŽ‘ UI/UX
๐Ÿ‘ฉโ€๐Ÿ’ป Programming
๐Ÿ›ข Database
๐Ÿ›  System Design
๐Ÿ”ฉ Machine Learning
๐ŸŽฏ DSA
โ›“ Blockchain
๐ŸŒ Web3
Today is my 200th day in Tech Twitter.

All of you have inspired me in someway. My journey here has been so interesting because of you all.

Those who I can't mention, you all are no less inspiring. Many of you have supported us so much that we could grow and evolve over time. ๐Ÿ™

โ€ข โ€ข โ€ข

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More from @swapnakpanda

Jan 18
How is "Divide by Zero" handled in JavaScript?

๐Ÿงต
โžŠ Why is "Divide by Zero" special?

Let's say

a รท 0 = y
โ‡’ a = y ร— 0
โ‡’ a = 0

It means

โฌ” a non-zero number can never be divided by zero

โฌ• as any number multiplied by zero is zero, 0 รท 0 is also indeterminate
โž‹ How do programming languages handle it?

โ‘ As we saw above, division by zero in every scenario is indeterminate.

โ’ Many programming languages consider it a special case and throws error/exception at runtime.

โ‘ To handle, we need to catch the error.
Read 6 tweets
Jan 16
What is < onclick=" return false;" > in HTML?

โ‡ฉ
โžŠ Why is it used?

โ‘ Events automatically lead to certain actions performed by the browser.

โ’ In some cases, we may not want default action to be performed.

โ‘ "return false" triggers browser to prevent taking default action.
โž‹ Let's break it down

โœ› onclick
It's an HTML attribute.
It's being used to set inline event handlers.

โœ› =""
The code written inside "" should be valid JS code.

โœ› return false
Returning false from an inline event handler
Read 8 tweets
Jan 16
๐Ÿ’™ 10K+ Followers
๐Ÿ“… 15-JAN

1K โ‡จ First 3 months
10K โ‡จ Next 3 months

Though I have been sharing the best possible learning contents, the kind of love and support I have received from you all is beyond my words.

You will receive even better contents, that's my promise

โ†“
To never pollute my timeline, I rarely share any non-educational tweets.

Today I thought of sharing few single-liners that I wrote before but never able to post them.

Please read and share your views.
Just because a 12 yo doing Web Dev, don't mistaken it as a child's stuff.
Read 10 tweets
Jan 14
What is <a href="javascript:void(0)" > in HTML?

โ‡ฉ
โžŠ Why is it used?

โ‘ When we click on a link, if we do not want the default behaviour of the browser to load a new page or refresh the same page.

โ’ Instead, the browser performs the JavaScript attached to that link.
โž‹ Let's break it down

โœ› javascript:
This is referred to as a Pseudo URL

โœ› void
This is a JavaScript Operator

โœ› (0)
This is a JavaScript Expression
Read 12 tweets
Jan 10
While "2" - 2 = 0, why is "2" + 2 = "22"?

A JavaScript ๐Ÿงต
โžŠ '+' operator is overloaded for Strings

โ‘ The binary '+' operator is generally a "Number Addition" operator.

โ’ When one of the operand is string, '+' rather acts like a "String Concatenation" operator. The other operand if not string is converted to string first.
โž‹ '-' operator operates on numbers only

โ‘ The binary "-" operator is known as a "Number Subtraction" operator.

โ’ If any of the operand is not number, that is first converted to a number before evaluating the expression.
Read 8 tweets
Jan 4
Why <!DOCTYPE html>?

โ‡ฉ
โžŠ History

โœช In the old days of the web, pages were written in two versions: One for Netscape Navigator, and one for Microsoft IE.

โœช When the web standards were made at W3C, browsers could not just start using them, as doing so would break most existing sites on the web.
โœช Browsers therefore introduced two modes to treat new standards compliant sites differently from old legacy sites.

โœช Modes are: Quirks Mode and Standards Mode.

โœช For HTML documents, browsers use a DOCTYPE in the beginning of the document to decide which mode to handle.
Read 9 tweets

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