Скачать с ютуб Web3.js Tutorial for Beginners: Master Web3js Library в хорошем качестве

Web3.js Tutorial for Beginners: Master Web3js Library

In this Web3.js tutorial, you'll learn how to master Web3js library. Working with web3js on following topic: Account, Blockchain, Smart Contract and Transaction Master Blockchain Programming with JavaScript - Web3.js ☞ https://morioh.com/p/97b1336f6ec7 Build a DeFi App (Ethereum, Solidity, Web3.js & Truffle) ☞ https://morioh.com/p/ad5e2ccc651d Web3.js Tutorial for Beginners - Full Course ☞ https://morioh.com/p/369abf9bd837 What is Etherum ? Ethereum is an open source, globally decentralized computing infrastructure that executes programs called smart contracts. It uses a blockchain to synchronize and store the system’s state changes, along with a cryptocurrency called ether to meter and constrain execution resource costs. The Ethereum platform enables developers to build powerful decentralized applications with built-in economic functions. While providing high availability, auditability, transparency and neutrality, it also reduces or eliminates censorship, and reduces certain counterparty risks. What is a smart contract ? The term smart contract has been used over the years to describe a wide variety of different things. In the 1990s, cryptographer Nick Szabo coined the term and defined it as “a set of promises, specified in digital form, including protocols within which the parties perform on the other promises”. Since then, the concept of smart contracts has evolved, especially after the introduction of decentralized blockchain platforms with the invention of Bitcoin in 2009. In the context of Ethereum, the term is actually a bit of a misnomer, given that Ethereum smart contracts are neither smart nor legal contracts, but the term has stuck. In this book, we use the term “smart contract” to refer to immutable computer programs that run deterministically in the context of an Ethereum Virtual Machine as part of the Ethereum network protocol, i.e. on the decentralized Ethereum world computer. What is a DApp? A Decentralized Application, or DApp, is an application which is mostly or entirely decentralized. Consider all the possible aspects of an application that may be decentralized: Front-end software Back-end software (logic) Data storage Name resolution Message communications What is Web3.js ? web3.js is a collection of libraries which allow you to interact with a local or remote ethereum node, using a HTTP or IPC connection. You will learn installation the big picture network create web3 object local hosted with ganache remote hosted with infura account create new account get account balance wallet block chain block inspection subscribe block headers subscribe pending transactions contract create contract call method sub event transaction transaction deploy contract transaction send ether transaction write to smart contract Blockchain and Ethereum dapp right now are very hot technical trend. Developer with good skill of blockchain and Dapp very easy to get jobs with 6 figures. Are you interesting joining the huge innovation of Dapp ? #Web3 #Ethereum #Morioh Note: If you have any copyright issue with the content used in our channel or you find something that belongs to you, before you claim it to Youtube, SEND US A MESSAGE and the respective content will be DELETED right away. Thanks for understanding. ------------------------------------------------------------------------------------ Social Network for Developers: http://bit.ly/2R1Lw31 Developer's Store: http://bit.ly/2L27JNR Fanpage: http://bit.ly/2LyM4fJ