区块链operation.unre,区块链opensea

近年来，区块链技术及其在金融领域的应用受到了越来越多的关注。区块链operation.unre和opensea是其中的两大重要组成部分。本文将对这两者进行详细的介绍，帮助读者更好地理解区块链技术。

区块链operation.unre是一种可操作的区块链技术，它在区块链系统中起着重要的作用。它可以被用来创建、实现和管理区块链网络中的操作。operation.unre通过分布式账本技术（DLT）来实现，它可以帮助用户跨越网络边界，确保交易安全可靠。此外，operation.unre还可以用于创建新的区块链应用，以及支持多个区块链网络之间的交互。

区块链opensea是一个基于区块链技术的去中心化交易平台，它可以帮助投资者以及开发者更好地管理他们的资产。opensea可以帮助用户在区块链上安全地进行交易，并且不受任何中心化机构的影响。使用opensea，用户可以轻松地创建自己的市场，以及发布和管理自己的资产。此外，opensea还支持智能合约，可以帮助用户更好地控制他们的资产，以及更加安全地进行交易。

区块链拓展是一种新兴的区块链技术，它可以帮助用户实现更多的功能。区块链拓展可以用来扩展原有的区块链系统，以支持更多的功能。区块链拓展可以用来创建新的应用，或者将现有的应用程序添加到区块链网络中。此外，区块链拓展还可以用来改善现有的区块链网络，以提高效率和安全性。区块链拓展的另一个优势是可以帮助用户更快地实现他们的目标，以及更好地管理他们的资产。

总之，区块链operation.unre，opensea和拓展是区块链技术的三大重要组成部分，它们可以帮助用户更好地理解区块链技术，并实现更多的功能。

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『一』 Is the competition for front-end development big in 2021? I want to learn front-end development, but I don’t know what the prospects are.

Front-end jobs will be easy to find in the next few years, for juniors The front-end competition is relatively large, but there are very few advanced front-end developers. The main reason is that the front-end threshold is low, but there are very few people who are proficient in various frameworks.

The front-end entry barrier is extremely low, reflected in HTML and CSS. Front-end development is no longer just about interactive experience. With the popularity of WEB software and HTML5 applets, it has gradually developed to focus on the development of more functions.

The web front-end has broad room for development. Websites such as apps, mini-programs, mobile terminals, and PC terminals require the development support of front-end technology to be completed. The technical threshold is relatively low and the demand is large. Salary is good. As long as it is a client interface on the Internet, it needs to be produced by the front end. The amount of programming in front-end development is not large, but it requires some programming. It is easy to get started, but it takes a process to learn in depth.

Graphics direction

The front-end is naturally inextricably linked to graphics. In addition to the visualization mentioned above, there is also the development of related 3D engines. The requirements for doing this industry are also very high. Graphics-related algorithms and 3D engine development all require graphics-related knowledge.

『二』Why do hackers set up servers widely and use other people’s mobile phones to mine?

Because it is safer to use other people’s mobile phones, so the Public Security Bureau Or it may not be easy for the security bureau to find the hacker's address.

"Mining theft" refers to hackers using your system resources to mine virtual currency without your consent. This mainly relies on the JavaScript code of the website. Hackers inject "mine-stealing" programs into the code. When you access these codes, the "mine-stealing" program will secretly run automatically.

Although Chrome is the most commonly used browser, Opera browser offers some interesting features that Chrome does not have. The latest version of the Opera browser automatically blocks ads, and it also has built-in protection against mining. This feature can prevent websites from running illegal mining scripts without authorization, which is not much different from ad blocking technology on web pages.

2. Use a cleaning program

If you are still worried after taking the above measures, you can install the Malwarebytes cleaning program on your computer and smartphone. Its computer version is completely It's free, but the premium version for mobile phones is paid. As more and more blockchain projects begin to use mobile phones for mining, if you don’t want your mobile phone to be used as a chicken, it is worth spending a little money.

You can still continue to protect your smartphone with antivirus software like Kaspersky.

『三』 What are the advantages of ipfs distribution? What is ipfs distribution?

ipfs distribution What is the use of ipfs and what are the ipfs distributed exchanges? ipfs is a decentralized peer-to-peer network that ensures that everyone can freely access and protect their assets. It is also a method of backing up digital collections. At the same time, many people do not know this. What are the advantages of ipfs? Let’s take a look with the editor. I hope this vertical article can help you.
What are the platforms that use ipfs service exchanges?
There are already many services using ipfs, covering a very wide range. Cryptocurrency rewards are used to encourage node operators to come here to host files. Although using ipfs does not want to be standard The website is so smooth and easy to use. For example, the filecoin exchange uses the ipfs service.
filecoin Exchange
A variety of advanced privacy protection algorithms, the software provides a complete identity verification mechanism, and highly optimized algorithm functions, providing a variety of professional currency circle trend analysis, allowing you to master the currency with one hand The latest news in the circle.
How to use ipfs nodes
ipfs is a web browser plug-in that can be used on Google, Edge, Firefox, and Opera, allowing you to interact with the ipfs desktop and installed ipfs nodes directly in the browser The advantage of using ipfs is that users do not have to worry about the platform or server hosting it failing and losing important digital assets.
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『四』 What to learn and how to learn front-end development

Learn front-end development, HTML, CSS and JavaScript are essentialLess often, HTML, as the core of web pages, is the standard language for making web pages, CSS is used to beautify pages, and JavaScript solves server-side languages. In addition, you also need to learn basic knowledge of website performance optimization, SEO, and server-side. Front-end learning and development recommends Guangdong embedded IT training. Click 0 yuan to get a trial course on front-end development

Technologies that need to be learned for front-end development:
1. Master basic web front-end development technologies: HTML, CSS, JavaScript, DOM, BOM, AJAX, etc., and understand them Compatibility on different browsers, rendering principles and existing bugs
2. Must master the basic knowledge of website performance optimization, SEO and server-side development technology
3. Must learn to use various web front-end development and testing Tools for assisted development
4. In addition to mastering technical knowledge, you must also master theoretical knowledge, including code maintainability, ease of use of components, hierarchical semantic templates and browser hierarchical support, etc.
5. In the future, web front-end development engineers will also study HTML5, web visual design, website color matching, website interaction design mode and other related technologies

If you want to know more about front-end development, it is recommended to consult Guangdong Embedded IT Training . Guangdong Embedded's current technology research and development directions are new technologies such as embedded, Internet of Things, intelligent manufacturing, blockchain, big data, cloud computing, artificial intelligence, network security, e-commerce, etc. It is highly professional and provides comprehensive IT technical services to the industry. and products to provide the country with more high-tech talents!

『五』What are the practical applications of Ethereum

Giten, Cent, Veil, etc.
01. Giten: A network that inspires open source developers. 02. Cent: A social network where you can make money by posting. 03. Veil: A trading platform for betting on real-world events. 04. CryptoKittes: A game for collecting and raising digital cats. 05. DAI: Stable cryptocurrency, 1 DAI corresponds to 1 US dollar. 06. Status chat tool, cryptocurrency wallet. 07. uPort: Secure identity and data management tool. 08. Brave: A secure web browser that earns money from watching ads. 09. Opera, Dapp browser and crypto wallet 10. EthereumNameService, the Ethereum name service ENS, creates a personalized name corresponding to the wallet address. 11. Civic: Secure identity and data management tool. 12. SelfKe: Self-managed identity system. 13. Alethio: Ethereum network analysis platform.
Ethereum is an open source blockchain public platform that allows everyone to freely develop smart contracts. Just like Android and Windows systems on the Internet, it provides a set of specialized script languages ​​that allow everyone to freely develop smart contracts on the blockchain. developed above.

『Lu』 "Official" summary of IPFS in 2021: becoming the backbone of Web3's mainstream momentum

Original text:

The popularity of Web3 applications has soared in 2021. The growth in use cases for the technology has also created greater demands on the infrastructure that supports them. IPFS has become an integral part of the solutions used by developers and users in the emerging Web3 ecosystem. Network Statistics: NFTs stored on IPFS: 15M+ Unique active IPFS nodes per week: 230K+ ipfs.io Gateway users per week: 3.7M+ ipfs.io Gateway requests per week: 805M+

2021 Cooperation Integration with

Having tools like IPFS and NFT Storage, Web3 Storage, and Estuary on the backend enables the project to offer decentralized storage capabilities as part of its product .

Let’s take a look at some of the most noteworthy applications:

1 Opensea integrates NFT.Storage for secure, platform-wide NFT persistence

OpenSea is one of the largest NFT marketplaces on the decentralized web. It has partnered with IPFS and FIlecoin to integrate NFT.Storage and allow users to “freeze” their NFT metadata. This process allows creators to truly decentralize their NFTs, putting power back into the hands of the creator rather than the custodian.

Now, OpenSea users can create immutable NFT data to be persistently stored on Filecoin’s blockchain, and complete retrieval of data through IPFS content ID. site. IPFS content addressing provides the perfect solution for NFT hosting by eliminating the possibility of “rug pulling” or misalignment of NFT metadata.

2 Brave adds native support for IPFS to its ongoing Web3 integration

After including its own cryptocurrency wallet, Brave continues to add Web3 capabilities to its desktop web browser by integrating IPFS. Now allows users to parse locally viaIPFS addresses to access content stored on the protocol.

The integration is the result of years of collaboration between the two teams, with the goal of making IPFS as accessible to end users as possible. This is a big step towards turning IPFS into a recognized internet standard that all browsers may eventually support.

3 Opera extends support for IPFS protocol addressing

Opera in 2020 Added support for IPFS to its Android browser for the first time this year. This year, it extended the same functionality to the browser for its Opera Touch iOS users, allowing them to navigate to ipfs:// and ipns:// addresses.

4 Pinata makes it easy for anyone to take advantage of IPFS

This fixed and The file management service allows users to store frequently referenced content on the blockchain in a simple and seamless way. Pinata makes full use of the IPFS fixed service API to publish content to the IPFS network, allowing CID-based decentralized storage and efficient retrieval.

5 ScalaShare brings secure file sharing to Web3 via IPFS

Internet File sharing between users started with P2P sharing, but ScalaShare brings this functionality to Web3 with the help of IPFS. This simple open source tool may become the file storage system of choice for those unwilling to hand over their data to large corporations.

6 Audius relies on CID to stream music on demand

Audius brings Web3 to Music streaming services have taken it in a new direction. Audius uses IPFS integration to store and retrieve data, ensuring there are no broken track links and all music is delivered to users without relying on a centralized server.

The CID for IPFS is key to ensuring that this music streaming service operates properly and continues to streamWeb3 infrastructure on top of popular Web 2.0 applications like TikTok.

7 Palm uses IPFS for storage on its sustainable NFT platform

This relatively new NFT studio recently partnered with IPFS. Palm has a sustainable architecture for generating NFTs. It uses a token-based economy to maintain an ecosystem with fast transaction times and low gas fees, all based on energy-saving technology. IPFS provides the solution it needs to ensure users always have access to their work.

8 Valist trusts IPFS for secure Web3 software distribution

Via website or App store distribution of software sometimes introduces security issues, as the 2020 SolarWinds attack demonstrated. Valist solves this problem by allowing development teams to distribute software in a Web3-native way. IPFS serves as Valist’s primary storage layer by providing a host of security guarantees out of the box.

9 Snapshots to ensure the DAO voting process is decentralized through IPFS

Popular DAOs Voting System Snapshot relies on IPFS as a core part of its infrastructure. It allows DAO members to reach consensus on specific protocol proposals through a decentralized voting process. Snapshots are one of the most commonly used tools in the growing space of community governance of everything from products to protocols

Technical Updates

2021 also saw several technical updates to the way IPFS works. The core of it is:

1 IPFS 0.11.0

This is for Go Developer's IPFS implementation. In addition to important fixes, the latest version also improves UnixFS sharding and PubSub experiments as well as support for Circuit-Relay v2. During the year, other improvements were made, such as:

Changes to the IPLD internal structure of go-ipfs make it easier to use non-UnixFS DAGs Provides a variety of new commands and configuration options Gateway support for downloading arbitrary IPLD graphs through the DAG export endpoint Custom DNS resolution Server supports individually packaged migration of non-ICANN DNSLink names Build WebUI for pinning services for Apple M1 hardware Supports remote pinning services for faster pinning and unpinning

2 JS IPFS 0.60.0

JS IPFS is a similar implementation based on JavaScript. It alleviates the problem of linking IPFS data with JavaScript applications, allowing developers to use it to access IPFS data natively. The latest version includes important bug fixes, and important improvements have been made throughout the year, such as:

ESM and CJS dual release A simpler globSource APIPubSub support resolution Browser connection restrictions Compressed output on ipfs.get switched from RSA to Ed25519Dag by default Import and export implemented better type definitions Enabled NAT UPnP Hole punching Added support for remote pinning services in ipfs-http-client

3 IPFS Cluster 0.14.1

Source code for setting up and running an IPFS cluster. This open source distribution opens up the world of IPFS to more users and developers. Over the course of the year, it received updates, including:

Improved speed at which pinsets can be listed More flexibility when migrating content to a new cluster CAR import support Batch fixed ingestion Automatic garbage collection of Badger data stores

To better understand why these improvements are important, be sure to check out this technical guide to IPFS.

Next steps for adoption

Although IPFS has made great strides in the last year, But there is still room for growth. New partnerships and advancements will be key to wider Web3 availability. As more and more mainstream usersAs users realize the need for a decentralized Internet, demand for tools such as IPFS will increase. We'll see what 2022 brings as they continue to enter the space.

『撒』 What is the relationship between ipfs and filecoin? Is there any friend who can explain the price of ipfs?

Filecoin is mainly to encourage everyone to contribute hard disk resources, because of the nature of IPFS It is to share your own storage space, that is, "shared hard drive". IPFS has been successfully used in browsers, data storage, file transfer, online video, social media, decentralized applications and other fields.

Its value:

Makes data storage safer and more convenient

Perfectly supports applications in the field

Reduces storage costs and Bandwidth cost

IPFS applications:

In the field of browser applications, Firefox, Google Chrome, IPSE, poseidon, Opera, Brave browsing The server has successively joined the IPFS ecosystem and supports distributed protocols including IPFS and other functions.

In the field of file transfer applications, file applications such as Partyshare, Pinata, and IPWB allow users to upload, download, and share files using IPFS.

In the field of content platform applications, content platforms such as Netflix, D.Tube, Dlive, Primas, Mediachain, and Ujomusic may use IPFS as a point-to-point CDN to help distribute containers faster, or allow users to use IPFS/Filecoin Basically watch/upload content information, or allow content information to be stored on IPFS, and obtain rewards through sharing/commenting and other operations.

In terms of social applications, social applications such as Indorse, Steepshot, 3Box, Peepeth, and AKASHA use IPFS technology to store data to ensure data security.

In the field of e-commerce (market) applications, Origin, Open Bazaar, Known Origin, etc. rely on blockchain IPFS technology to host product databases and supporting media on IPFS to ensure data security.

In addition, Textile, IKU, Eehlance, Peergos, Augur, Civic, Bradbvry, ethoFS, Play to Earn, Qri, Resume, Temporal, Other applications such as Terminal also support IPFS technology to improve and promote the healthy growth of their own ecology.

Note: In addition, please use the Internet to searchSearch for more relevant knowledge, web search - the value of both

『八』What is the prospect of the front-end in 2021

People who are familiar with front-end development should know that in recent years, Various front-end frameworks are emerging one after another, the H5 development model is becoming more and more popular, and the era of big front-end has arrived.
Various front-end technologies emerge every year, and quickly mastering the latest front-end technologies is an indispensable skill for every developer. Today I will talk to you about 5 trends in web development, hoping to bring you some useful information.
1. Intelligent chatbot Chatbot
Intelligent chatbot provides a new channel for user communication and service delivery. It is also called an intelligent agent because it often incorporates artificial intelligence technology.
Through artificial intelligence, all customers' questions and concerns can be solved in the best way, greatly improving customer service efficiency and satisfaction. In the next few years, smart chatbots for websites, especially transactional websites, will become popular around the world for the simple reason that they can increase conversion rates.
2. Progressive Web Applications
The main reason why APPs surpass the web is better performance, functionality and experience, and the goal of Progressive Web Applications (Progressive web
apps) is to provide Product experience close to APP. Progressive Web Apps provide the same features as mobile apps, such as offline support, etc., with the advantage that they are available everywhere without downloading from the App Store or Play Store.
Although progressive web applications are still inseparable from the browser, they are suitable for all users because these web applications are built and improved based on open web standards. This cross-platform and hot iteration attribute makes Web applications are more attractive than closed app development in a highly uncertain market environment.
3. Web development for the Internet of Things
We are entering a new era of front-end web design, and the design of the website needs to take into account the functions of smart devices. The Internet of Things will take e-commerce website design to the next level.
Internet of Things Web development emerged with the Web-based management of traditional software management. The purpose is to manage traditional controllable smart devices through Web means, and to display and control the technology of these smart devices through the media of the Web. Controlling these smart devices to do things that are not easy for humans to do, although this is still relatively far away at the moment.
4. Static website generator
Static website generator is used to develop archive websites based on simple text. In many cases, static websites created with static website generators have several advantages: faster loading times, better security, and easier traffic management.
5. Blockchain Web Development
/>Blockchain is in the implementation stage. The first thing that needs to be solved is the accessibility of blockchain applications, and Web3.0 technology will open the door to blockchain (closed systems like WeChat and Facebook will obviously not be disruptive). Third-party blockchain developers show mercy), Opera has even launched a blockchain browser. In the future, more and more web products will integrate blockchain applications (such as wallets and Dapps). Security and browser compatibility will be key issues of blockchain web development.

『九』 What are the trends in Web front-end development? How many do you know?

The article I want to share with you today is about what are the trends in Web front-end development? How many do you know? Everyone who is familiar with front-end development should know that in recent years, various front-end frameworks have emerged one after another, the H5 development model has become more and more popular, and the era of big front-end has arrived. Various front-end technologies emerge every year, and quickly mastering the latest front-end technologies is an indispensable skill for every developer. Today, let’s talk to you about 8 trends in web development, hoping to bring you some useful information. Come and take a look with the editor below! 1. Intelligent chat robot Chatbot intelligent chat robot provides a new channel for user communication and service delivery. It is also called an intelligent agent because it often incorporates artificial intelligence technology. Through artificial intelligence, all questions and concerns of customers can be solved in the best way, greatly improving customer service efficiency and satisfaction. In the next few years, smart chatbots for websites, especially transactional websites, will become popular around the world for the simple reason that they can increase conversion rates. 2. Single-page websites In the next few years, many website development trends will actually be based on the two basic principles of speed and convenience. In the near future, people without programming experience will be able to easily develop beautiful and easy-to-use websites for your business through specific design and development tools. For the concept of single-page websites, user experience is very important. In the next few years, with the addition of new Web standards and animation special effects, fast Web products like single-page websites will become popular. 3. Progressive Web Applications The main reason why APP surpasses the web is better performance, functions and experience, and the goal of Progressive Web Applications (Progressive Web Apps) is to provide a product experience close to APP. Progressive web apps offer the same features as mobile apps, such as offline support, etc., with the advantage that they are available everywhere without downloading from the AppStore or PlayStore app store. Although progressive web applications are still inseparable from the browser, they are suitable for all users because these web applications are built and improved based on open web standards. This cross-platform and hot iteration attribute makes web applications highly In an uncertain market environment, closed app development is more attractive. 4. Web development for the Internet of Things meWe are entering a new era of front-end web design, and the design of websites needs to take into account the functions of smart devices. The Internet of Things will take e-commerce website design to the next level. Internet of Things Web development emerged with the Web-based management of traditional software management. The purpose is to manage traditional controllable smart devices through Web means, display and control the technology of these smart devices through the media of the Web, and control these smart devices. To accomplish things that are not easy for humans to accomplish, although this is still relatively far away at present. 5. The era of multimedia interactive long text reading and fast reading is coming to an end. More and more users are beginning to favor high-quality long text content. The long text here does not refer to long articles, but is refined by multimedia video pictures, interactive elements, and text. Long content with exquisite formatting. The future interactive design of long content will make it easier for users to jump and mark from the content. 6. Java framework Java framework will maintain its dominance. More and more web developers are using Java frameworks as it is easier and more suitable for developing various features. More and more web developers are using Java frameworks to create cleaner, more responsive, and error-free sites. Closures, callbacks, RAILS and other functions are all implemented in a fast and reliable way. 7. Static website generator Static website generator is used to develop archive websites based on simple text. In many cases, static websites created with static website generators have several advantages: faster loading times, better security, and easier traffic management. 8. Blockchain Web Development Blockchain is in the implementation stage. The first thing that needs to be solved is the accessibility of blockchain applications, and Web3.0 technology will open the door to the blockchain (closed systems like WeChat and Facebook are obviously No mercy for disruptive third-party blockchain developers), Opera has even launched a blockchain browser. In the future, more and more web products will integrate blockchain applications (such as wallets and Dapps). Security and browser compatibility will be key issues of blockchain web development. Conclusion Website Web development technology is developing rapidly. Single-page websites and progressive web apps have emerged over the years and have gained huge popularity. Subsequent improvements in Java and PHP7 have also had a positive effect, and these will dominate Web development trends. The above is what the editor has shared with you today. What are the trends in web front-end development? Do you know a few articles? I hope this article can be helpful to friends who are working on web front-end and want to know more about web. Friends who have front-end knowledge, please remember to pay attention to the official website of Beida Jade Bird web front-end training. Finally, I wish you all the best in your work and become an excellent web front-end engineer.