From Middle English magik, magyk, from Old French magique (noun and adjective), from Latin magicus (adjective), magica (noun use of feminine form of magicus), from Ancient Greek μαγικός (magikós, “magical”), from μάγος (mágos, “magus”). Ultimately from Old Iranian, probably derived from Proto-Indo-European *meh₂gʰ- (“to be able to, to help; power, sorcerer”). Displaced native Middle English dweomercraft (“magic, magic arts”) (from Old English dwimor (“phantom, illusion”) + cræft (“art”)), Old English galdorcræft (“magic, enchantment”), Old English drȳcræft (“magic, sorcery”).

Magic

TypeScript is a free and open source programming language developed and maintained by Microsoft. It is a strict syntactical superset of JavaScript and adds optional static typing to the language. It is designed for the development of large applications and transpiles to JavaScript. As it is a superset of JavaScript, existing JavaScript programs are also valid TypeScript programs.

TypeScript may be used to develop JavaScript applications for both client-side and server-side execution (as with Node.js or Deno). Multiple options are available for transpilation. The default TypeScript Compiler can be used, or the Babel compiler can be invoked to convert TypeScript to JavaScript.

TypeScript supports definition files that can contain type information of existing JavaScript libraries, much like C++ header files can describe the structure of existing object files. This enables other programs to use the values defined in the files as if they were statically typed TypeScript entities. There are third-party header files for popular libraries such as jQuery, MongoDB, and D3.js. TypeScript headers for the Node.js basic modules are also available, allowing development of Node.js programs within TypeScript.

The TypeScript compiler is itself written in TypeScript and compiled to JavaScript. It is licensed under the Apache License 2.0. TypeScript is included as a first-class programming language in Microsoft Visual Studio 2013 Update 2 and later, alongside C# and other Microsoft languages. An official extension also allows Visual Studio 2012 to support TypeScript. Anders Hejlsberg, lead architect of C# and creator of Delphi and Turbo Pascal, has worked on the development of TypeScript.

Typescript

A linked list is a sequence of data structures, which are connected together via links.

Linked List is a sequence of links which contains items. Each link contains a connection to another link. Linked list is the second most-used data structure after array. Following are the important terms to understand the concept of Linked List.

Link − Each link of a linked list can store a data called an element.

Next − Each link of a linked list contains a link to the next link called Next.

LinkedList − A Linked List contains the connection link to the first link called First.

Linked List Representation
Linked list can be visualized as a chain of nodes, where every node points to the next node.

Linked List

Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus.

Most people infected with the virus will experience mild to moderate respiratory illness and recover without requiring special treatment. However, some will become seriously ill and require medical attention. Older people and those with underlying medical conditions like cardiovascular disease, diabetes, chronic respiratory disease, or cancer are more likely to develop serious illness. Anyone can get sick with COVID-19 and become seriously ill or die at any age. 

The best way to prevent and slow down transmission is to be well informed about the disease and how the virus spreads. Protect yourself and others from infection by staying at least 1 metre apart from others, wearing a properly fitted mask, and washing your hands or using an alcohol-based rub frequently. Get vaccinated when it’s your turn and follow local guidance.

The virus can spread from an infected person’s mouth or nose in small liquid particles when they cough, sneeze, speak, sing or breathe. These particles range from larger respiratory droplets to smaller aerosols. It is important to practice respiratory etiquette, for example by coughing into a flexed elbow, and to stay home and self-isolate until you recover if you feel unwell.

Covid 

SAND IS BOTH abundant and rare. Earth has vast deserts of the stuff, of course, but not the kind that’s in such high demand that sand mafias are killing for it. That special variety is a critical component of the concrete used in buildings and infrastructure, the production of which has skyrocketed exponentially over the last few decades. That has come at a significant climate cost: The industry now accounts for 8 percent of global carbon emissions.

Sand is also at the center of a strange climate story. Climate change is destroying Greenland’s ice sheet, producing an extraordinary amount of meltwater. (Even if we somehow totally stopped emissions today, Greenland’s melting could still contribute nearly a foot of sea-level rise.) And in a twist of fate, that meltwater is loaded with the right kind of sand for concrete production, which causes more warming and more melting. Great plumes of glacial sediment are swirling along the coast, actually adding land along the edges of the island. Even though Greenland is only three times the size of Texas, its ice sheet is the source of 8 percent of suspended river sediments flowing into the oceans. 

The country now has to figure out whether exploiting that valuable, abundant resource on a wider scale would be environmentally, socially, and economically tenable. “It is quite controversial—we're saying Greenland can benefit from climate change,” says Mette Bendixen, a geographer at McGill University in Canada, who’s studying the idea. “Contrary to most of the other parts of the Arctic coast, Greenland is not eroding. It's in fact growing bigger, because the ice sheet is melting. So you can think of the ice sheet as a tap that pours out not only water, but also all the sediment.”
That sediment is special, indeed. Desert sand from, say, the Sahara is no good for making concrete because it’s too rounded and uniform. Over millennia, winds push those grains around, polishing them. If you make concrete out of such sand, “it's almost like building with marbles,” says Bendixen. “You want particles that are more angular in shape, not rounded. And that type of material is exactly what you get from rivers, for example, or material that has been deposited by glaciers.”

As Greenland’s ice sheet—which covers 700,000 square miles and is up to 10,000 feet thick—rubs against the land, it grinds up sediment, including sand, fine silt, and larger chunks of gravel. And as the ice melts, torrents of water carry all that debris to the sea, while the pounding of the rivers themselves further erodes the landscape. Compared to the thousands of years that sand spends rolling around the Sahara and becoming rounded, the particles coming off Greenland are fresher. They’re more angular and more diversely shaped. Instead of acting like marbles, they fit together like pieces of a jigsaw puzzle, which is good for concrete.
Greenland already harvests its sand for local, small-scale concrete production, since importing sand would be prohibitively expensive. This is limited to domestic companies, who have to win non-exclusive permits after passing environmental review by the government’s scientific advisers. They can also apply to export the sand, but that requires additional licensing. “We are basically also open for sand extraction aiming at export, but then it will be treated like any other mining activity,” says Kim Zinck-Jørgensen, of the Greenland government’s Mineral Licence and Safety Authority. “And for that you'll have a much greater setup with regulations and also environmental impact assessments, social impact assessments.” 

Currently, dredging boats suck up sediment along the coast and filter out the sand, which is then brought back onshore. But if Greenland decides to scale up sand extraction for export, that would mean big ships would have to haul the stuff away to international ports. “It's important to stress that if you extract whatever natural resource, there will be environmental consequences,” says Bendixen. “But really, here the environmental consequences can be super broad.”

For one, those big ships will also be bringing in ballast, or the water they’ve collected from elsewhere and stored in their hulls for balance. If that ballast is released off the coast of Greenland, it may introduce invasive species. And, of course, dredging coastal sediments would further endanger underwater native creatures—and on land, increased mining operations might scare away the game that Inuit hunters rely on. (Greenland’s population is about 90 percent indigenous Inuit. The Greenland branch of the Inuit Circumpolar Council, an NGO representing Inuit peoples, declined to comment for this story.) 

Interestingly, though, last month Bendixen and her colleagues published a survey of Greenlanders about their opinions on sand extraction. They found that 84 percent of adult residents are in favor of it, and three-quarters want it to be a national project. “It turns out that the vast majority of Greenlanders think that it should be primarily a Greenlandic enterprise,” says Rasmus Leander Nielsen, a political scientist at the University of Greenland, who did the survey with Bendixen. “Maybe you could have some smaller-scale, Greenlandic-led companies that could start off. And then eventually, when the business case is more favorable, then we could go into a larger export.”

About that business case: While the global demand for sand has gone wild, the economics of exported Greenland sand aren’t yet clear. A company would have to pay to run the local operations and foot the shipping costs to get the resource off the island. Those will be considerable, since sand is heavy and takes up a lot of room in a ship. 

The Greenland government recently worked with a consultancy that did an assessment, finding that exporting the sand to Europe isn’t economically feasible at the moment. “Whether it's feasible to export it further on to the Middle East, I don't know,” says Thomas Lauridsen, chief adviser to Greenland’s Ministry of Mineral Resources and Justice. “But we will then be in competition with European companies that will dredge sand in Europe or closer to the customer.” 

Lauridsen adds that it’s up to the private sector to determine whether selling Greenland’s sand is cost-effective or not. And that export cost calculus may change in the future. “By 2100, the demand for sand is going to rise 300 percent, and the price 400 percent,” says Bendixen. “So we don't have to look that much farther into the future to start seeing a different calculation here in terms of whether it's worthwhile.”

Yes, a world with more sand harvesting for making more concrete would also mean more carbon emissions, more warming, and more melting of Greenland’s ice sheet. But, Bendixen says, all that glacial sand need not go exclusively toward concrete. Coastal communities are increasingly clamoring for sand to hold back rising seas, a fortification known as beach nourishment. “Just think of the irony in using the sand for beach nourishment to mitigate sea-level rise,” says Bendixen, “which is caused by—to a large extent—the melting of the Greenland ice sheet!” 

[Source: wired.com]

Greenland’s Melting Glaciers

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.

gycfyt

Like Merge Sort, QuickSort is a Divide and Conquer algorithm. It picks an element as a pivot and partitions the given array around the picked pivot. There are many different versions of quickSort that pick pivot in different ways. 

Always pick the first element as a pivot.
Always pick the last element as a pivot (implemented below)
Pick a random element as a pivot.
Pick median as the pivot.
The key process in quickSort is a partition(). The target of partitions is, given an array and an element x of an array as the pivot, put x at its correct position in a sorted array and put all smaller elements (smaller than x) before x, and put all greater elements (greater than x) after x. All this should be done in linear time.

Quick Sort

Indira Gandhi Delhi Technical University for Women (IGDTUW), is an all women's university located in New Delhi, India on the heritage campus at Kashmere Gate, Delhi. It was founded as the Indira Gandhi Institute of Technology in 1998. In May 2013 it gained autonomy and became the first women's technical university in India established by Govt. of Delhi.[2] The university offers BBA and BTech, MTech, and PhD programs in four branches of engineering i.e. in the field of Computer Science and Engineering, Electronics and Communication Engineering, Mechanical and Automation Engineering and Information Technology.[2] The university also offers 5 years program in Bachelors of Architecture (B.Arch.) and a 2-year post graduate program in M. Plan (Urban Planning).

IGDTUW

MongoDB is a source-available cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with optional schemas. MongoDB is developed by MongoDB Inc. and licensed under the Server Side Public License (SSPL) which is deemed non-free by several distributions.10gen software company began developing MongoDB in 2007 as a component of a planned platform as a service product. In 2009, the company shifted to an open-source development model, with the company offering commercial support and other services. In 2013, 10gen changed its name to MongoDB Inc.
On October 20, 2017, MongoDB became a publicly traded company, listed on NASDAQ as MDB with an IPO price of $24 per share.
MongoDB is a global company with US headquarters in New York City and International headquarters in Dublin.

On October 30, 2019, MongoDB teamed up with Alibaba Cloud, who will offer its customers a MongoDB-as-a-service solution. Customers can use the managed offering from BABA's global data centers.

MongoDB

Delhi Technological University (DTU), formerly known as the Delhi College of Engineering (DCE) is a state university in Rohini, Delhi, India. It was established in 1941 as Delhi Polytechnic. In 1952, it started giving degrees after being affiliated with the University of Delhi. The institute has been under the Government of Delhi since 1963 and was affiliated with the University of Delhi from 1952 to 2009. In 2009, the college was given university status, thus changing its name to Delhi Technological University.

Delhi Technological University 

Naruto is a Japanese  series written and illustrated by . It tells the story of , a young  who seeks recognition from his peers and dreams of becoming the Hokage, the leader of his village. The story is told in two parts – the first set in Naruto's pre-teen years, and the second in his teens. The series is based on two  by Kishimoto: Karakuri (1995), which earned Kishimoto an honorable mention in 's monthly Hop Step Award the following year, and Naruto (1997).

Naruto was serialized in Shueisha's magazine,  from 1999 to 2014, and released in  (book) form in 72 volumes. The manga was adapted into an  television series produced by  and , which broadcast 220 episodes in Japan from 2002 to 2007; the English  of the series aired on  and  from 2005 to 2009. , a sequel to the original series, premiered in Japan in 2007, and ended in 2017, after 500 episodes. The English dub was broadcast on  from 2009 to 2011, airing the first 98 episodes, and then switched over to 's  programming block in January 2014, starting over from the first episode. The English dub is still airing weekly on Adult Swim to this day. Viz Media began streaming the anime series on their streaming service  in December 2012 on 99 episodes, and ended in March 2016, after 338 episodes. Besides the anime series, Pierrot has developed eleven movies and twelve  (OVAs). Other Naruto-related merchandise includes , video games, and trading cards developed by several companies.

 licensed the manga and anime for North American production and serialized Naruto in their digital  magazine. The anime series began airing in the United States and Canada in 2005, and in the United Kingdom and Australia in 2006 and 2007, respectively. The films and most OVAs from the series were also released by Viz, with the first film premiering in movie theaters. The story of Naruto continues with Naruto's son, , in : Boruto wishes to create his own ninja way instead of following his father's.

Naruto is one of the  in history having 250 million copies in circulation worldwide in 47 countries and regions, with 153 million copies in Japan alone and remaining 97 million copies elsewhere. It has become one of Viz Media's best-selling manga series; their English translations of the volumes have appeared on  and  bestseller list several times, and the seventh volume won a  in 2006. Reviewers praised the manga's character development, strong storylines, and well-executed fight scenes, though some felt the fight scenes slowed the story down. Critics noted that the manga, which has a  theme, makes use of cultural references from  and .

Naruto

Next.js is an open-source web development framework built on top of Node.js enabling React-based web applications functionalities such as server-side rendering and generating static websites. React documentation mentions Next.js among "Recommended Toolchains" advising it to developers as a solution when "Building a server-rendered website with Node.js". Where traditional React apps can only render their content in the client-side browser, Next.js extends this functionality to include applications rendered on the server-side.Next.js is a React framework that enables several extra features, including server-side rendering and generating static websites. React is a JavaScript library that is traditionally used to build web applications rendered in the client's browser with JavaScript. Developers recognize several problems with this strategy however, such as not catering to users who do not have access to JavaScript or have disabled it, potential security issues, significantly extended page loading times, and it can harm the site's overall search engine optimization. Frameworks such as Next.js sidestep these problems by allowing some or all of the website to be rendered on the server-side before being sent to the client. Next.js is one of the most popular frameworks for React. It is one of several recommended "toolchains" available when starting a new app, all of which provide a layer of abstraction to aid in common tasks.Next.js requires Node.js and can be initialized using Node Package Manager.

Google has donated to the Next.js project, contributing 43 pull requests in 2019, where they helped in pruning unused JavaScript, reducing loading time, and adding improved metrics. As of March 2020, the framework is used by many large websites, including Netflix, GitHub, Uber, Ticketmaster, and Starbucks.In early 2020, it was announced that Vercel had secured twenty-one million dollars in Series A funding to support improvements to the software. The framework's original author, Guillermo Rauch, is currently the CEO of Vercel, and the project's lead developer is Tim Neutkens.

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