Swapna Kumar Panda ๎จ€ Profile picture
Mar 12 โ€ข 4 tweets โ€ข 1 min read
๐Ÿ’Ž JavaScript Cheat Sheet : Math Object

Find Complete Reference of
โ 8 Constants
โ 35 Functions

โœง Link to High Resolution image in the next tweet JavaScript Math Object  1. Constants  a. Math.E  b. Math.LN2
๐Ÿ™ High Resolution Image

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โฌ” I have compiled these information with all sincerity. But in case you find any omissions or, wrong representations, ๐Ÿ’ฌ me.

โฌ• Share your feedbacks if you see any area of improvement for me. Feedbacks are highly appreciated.
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More from @swapnakpanda

Mar 13
25 super useful methods in JavaScript

โ‡ฉ
๐Ÿ’ญ Why this thread?

โ‘ If you have just started learning JavaScript, you might have felt exhausted by seeing so many methods.

โ’ If you are simply going through those methods without knowing their use cases, it's going to be tough for you later.

โ‘ Let's learn use cases.
๐Ÿ“‹ Table of Contents

โ‘ Array.prototype's

โžŠ forEach()
โž‹ map()
โžŒ reduce()
โž every()
โžŽ filter()
โž find()
โž slice()
โž‘ splice()
โž’ push()
โž“ pop()
โžŠโžŠ shift()
โžŠโž‹ unshift()
โžŠโžŒ indexOf()
โžŠโž findIndex()
โžŠโžŽ sort()
Read 25 tweets
Mar 11
Let's redefine the "undefined". Can we do it in JavaScript?

โ‡ฉ
โžŠ What is "undefined"?

โ‘ "undefined" is a variable in the global scope. The value of "undefined" is the primitive value "undefined"

โ’ When a variable is declared but not assigned any value, value of global variable "undefined" is assigned to it implicitly.
โž‹ "undefined" is not a reserved keyword

โ‘ It means you can declare a variable named "undefined".

โ’ So, what will happen if you declare a variable called "undefined" and assign some other value to it?

Let's explore.
Read 7 tweets
Mar 10
๐ŸŸฆ All inline & block-level elements in HTML / CSS

Check inside the ๐Ÿงต for

โœง Interesting details about inline & block-level
โœง Link to high resolution image

โ‡ฉ HTML elements can be categorized as either "block-level
๐Ÿ“‹ Table of Contents

โžŠ Introduction
โž‹ inline-level
โžŒ block-level
โž Changing Element Level
โžŽ List of inline-level elements
โž List of block-level elements
โž Link to High Resolution Image
๐Ÿšฅ Disclaimer

โ‘ I have compiled these information with all sincerity. But in case you find any omissions or, wrong representations, ๐Ÿ’ฌ me.

โ’ If you have any suggestions or, feedbacks, share those with me. I am eager to hear from you.
Read 18 tweets
Mar 9
๐Ÿ™ Should we use Semantic HTML?

โœ˜ <div> โžœ <header> โœ“
โœ˜ <div> โžœ <nav> โœ“
โœ˜ <div> โžœ <section> โœ“
โœ˜ <div> โžœ <article> โœ“
โœ˜ <div> โžœ <aside> โœ“
โœ˜ <div> โžœ <main> โœ“
โœ˜ <div> โžœ <summary> โœ“
โœ˜ <div> โžœ <footer> โœ“

โ‡ฉ
We will discuss about

โžŠ What is Semantic HTML?
โž‹ Examples of Semantic Elements
โžŒ Benefits of using Semantic HTML
โžŒ.โž€ Improve site's SEO positioning
โžŒ.โž Help your site more accessible
โžŒ.โž‚ Closer to natural language, easier to maintain
โž Should we not use "div"?
โžŠ What is Semantic HTML?

โ Semantic HTML adds essential meaning to the web page rather than just presentation.

โ This lets web browsers, search engines, screen readers, RSS readers, and ultimately users understand it in a better way.
Read 14 tweets
Mar 8
Memorise JavaScript Array Methods in 11 Steps

โ‡ฉ
๐Ÿ“‹ TOC

โžŠ Static Methods
โž‹ Accepts -ve Index
โžŒ Returns Boolean
โž Returns Index
โžŽ Returns new Array
โž Modifies Existing Array
โž Iterates through entire Array
โž‘ Iterates Partially
โž’ Checks Elements "as it is"
โž“ Checks Elements custom way
โžŠโžŠ Accepts a callback
โžŠ Static Methods

โ of()
โ from()
โ isArray()
Read 15 tweets
Mar 7
10 HTML Tags and Attributes for SEO

โ‡ฉ
๐Ÿ“‹ Table of Contents

We will discuss about

โžŠ <title>
โž‹ <meta name = "description" >
โžŒ <h1> to <h6>
โž <img alt="...">
โžŽ <a rel="nofollow">
โž <meta name = "robots" >
โž <link rel = "canonical" >
โž‘ <meta name = "viewport" >
โž’ Open Graph Tags
โž“ Twitter Card Tags
๐Ÿ” Introduction

โ‘ When search engines crawl a website, it goes through all the HTML documents.

โ’ Various HTML tags and, attributes help search engine to determine what your content is about and, how to categorise it.

โ‘ So all these may affect how your website performs.
Read 16 tweets

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