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૑Ә! ੗߄झ௼݀౟ ೞ ۰ݶ ঌইঠ ೡ Ѫٜ Head topics in Javascript, 2020

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੗߄झ௼݀౟ Javascript

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One of Most Popular Programming Languages

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https://octoverse.github.com/

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TIOBE programming community index is a measure of popularity of programming languages

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Javascript is running on many where

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https://en.wikipedia.org/wiki/JavaScript Initially only implemented client-side in web browsers, JavaScript engines are now embedded in many other types of host software, including server-side, databases, and in non-web programs, mobile and desktop applications.

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https://en.wikipedia.org/wiki/JavaScript Initially only implemented client-side in web browsers, JavaScript engines are now embedded in many other types of host software, including server-side, databases, and in non-web programs, mobile and desktop applications.

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https://en.wikipedia.org/wiki/JavaScript Initially only implemented client-side in web browsers, JavaScript engines are now embedded in many other types of host software, including server-side, databases, and in non-web programs, mobile and desktop applications.

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Community Driven Language

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ECMAScript/ES 20XX

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ECMAScript/ES 20XX == Javascript/JS

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https://en.wikipedia.org/wiki/JavaScript In November 1996, Netscape submitted JavaScript to ECMA International to carve out a standard specification, ... ECMAScript published in the first edition of the ECMA-262 standard in June 1997, ECMAScript 2 in June 1998, The release of ECMAScript 3 followed in December 1999, by 2003, the original ECMAScript 4 work was mothballed. The development of ECMAScript 4 was never completed. ... Alas, there was still turmoil between the various players ... While all of this was happening, the open source and developer communities set to work to revolutionize what could be done with JavaScript, in early 2009 to rename ECMAScript 3.1 to ECMAScript 5 and drive the language forward using an agenda that is known as Harmony. ECMAScript 5 was finally released in December 2009. In June 2011, ECMAScript 5.1 was released to fully align with the third edition of the ISO/IEC 16262 international standard. ECMAScript 2015 was released in June 2015. ECMAScript 2016 was released in June 2016. The current version is ECMAScript 2017, released in June 2017

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https://en.wikipedia.org/wiki/JavaScript In November 1996, Netscape submitted JavaScript to ECMA International to carve out a standard specification, ... ECMAScript published in the first edition of the ECMA-262 standard in June 1997, ECMAScript 2 in June 1998, The release of ECMAScript 3 followed in December 1999, by 2003, the original ECMAScript 4 work was mothballed. The development of ECMAScript 4 was never completed. ... Alas, there was still turmoil between the various players ... While all of this was happening, the open source and developer communities set to work to revolutionize what could be done with JavaScript, in early 2009 to rename ECMAScript 3.1 to ECMAScript 5 and drive the language forward using an agenda that is known as Harmony. ECMAScript 5 was finally released in December 2009. In June 2011, ECMAScript 5.1 was released to fully align with the third edition of the ISO/IEC 16262 international standard. ECMAScript 2015 was released in June 2015. ECMAScript 2016 was released in June 2016. The current version is ECMAScript 2017, released in June 2017

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Stage 0: Strawman, submitting ideas and review Stage 1: Proposal, formal proposal for the feature Stage 2: Draft, first version of what will be in the specification Stage 3: Candidate, the proposal is mostly finished Stage 4: Finished, the proposal is ready to be included in the standard ECMAScript/ES 20XX

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Compiling, to Javascript

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- TypeScript: TypeScript is a superset of JavaScript that compiles to clean JavaScript output - ReasonML: Simple, fast & type safe code that leverages the JavaScript & OCaml ecosystems - PureScript: A strongly-typed language that compiles to Javascript, written in and inspired by Haskell - ClosureScript, Elm ClojureScript

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- Superset of JavaScript that brings users optional static types and solid tooling - Designed for development of large applications and transcompiles to JavaScript - Maintained by Microsoft, Backed by Google (Angular and other project) - Support in many mature IDEs - Annotations and Compile-time type checking, Interfaces, Enumerated, Generics, Namespaces, Tuples, Async/await, Classes Modules ...

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࠳ۄ਋੷ Browsers

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Browser, the platform for Web Applications

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Blink V8 Webkit Nitro Gecko(Quantum) Spidermonkey Blink V8 Blink V8 Blink V8

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Web Assembly (aka, WASM)

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WebAssembly

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Javascript Source Code Ignition (JS Interpreter) TurboFan (Optimization Compiler) Deoptimize Optimize (Profile Data) Bytecode Optimized Code Collecting Information Profiling Data

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Liftoff (WebAssembly baseline compiler) Hot Swap Execution Immediately WASM TurboFan (Optimization Compiler) Off-thread Optimization

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https://developers.google.com/web/updates/2019/02/hotpath-with-wasm

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SharedArrayBuffer Threads Worker CPU Core WASM Instance Worker CPU Core WASM Instance Worker CPU Core WASM Instance https://www.youtube.com/watch?v=kZrl91SPSpc atomic.wait atomic.notify

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Threads in C https://github.com/ragingwind/wasm-hello-world/tree/master/clang-thread

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https://medium.com/google-earth/performance-of-web-assembly-a-thread-on-threading-54f62fd50cf7 Threads

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SIMD Single Instruction, Multiple Data

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https://hacks.mozilla.org/2019/08/webassembly-interface-types/

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Web Audio / Midi https://ryoyakawai.com/blog/2015/07/27/webmusic-hackathon-kyoto-en.html

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https://developer.mozilla.org/en-US/docs/Web/API/WebXR_Device_API

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Web Capabilities (aka, Fugu)

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https://goo.gle/fugu-api-tracker

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য೒ܻா੉࣌ Applications

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https://roadmap.sh/frontend

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Workflow, whole development process of Javascript Application

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Init Dev Build Deploy

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Framework, is a starting point, not a goal

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REACT NEXT.JS VUE.JS NUXT.JS PREACT ANGULAR EMBER (GLIMMER) GOOD OPTIONS WITH WORKFLOW SVELTE

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https://npmcharts.com/compare/react,angular,@angular/core,ember-cli,vue,@polymer/polymer,next,nuxt,preact

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- Best practices built with the framework - Zero configuration tooling - Customizable configs - Exporting static files - PWA supports - Optimized performance - Tutorials, books and videos for learning - Developer Experience

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Data Management, manage multiple pieces of state scattered across many components

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https://facebook.github.io/flux/docs/in-depth-overview.html State Management, Flux

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https://www.jahia.com/about-us/news-events/blog/introduction-to-graphql GraphQL

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Packages Manager

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2018

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2019

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2020

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Bundling, tighten up your application for serving in production-ready version

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https://speakerdeck.com/addyosmani/fast-by-default-modern-loading-best-practices

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Tools, Editing, Debugging, Auditing and Testing

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https://next-hnpwa.now.sh/ LIGHTHOUSE

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LIGHTHOUSE SCORE

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- Unit testing - E2E testing - UI Testing (Component) - Browser-side testing

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https://twitter.com/malweene/status/1177271711806427136/photo/1

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ࢲߡ-ࢎ੉٘ Server-Side

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- Node(node, Node.js) - V8 Engine for running Javascript out of browser - Light, fast, running on cross-platforms - Asynchronous I/O via libuv - Event-driven and Non-blocking I/O - Strong community, Node foundation and npm - Isomorphic (Universal) JavaScript Application

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- Deno - Ryan Dahl, Same creator of Node - V8 Engine for running Javascript out of browser - Security, Security - Typescript - Simple Module System - Efficient Performance powered by Rust

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JAMStack, serving pre-rendering files directly from a CDN, removing the requirement to run web servers

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Building and deploying modern websites and apps - GitHub Universe 2019 - YouTube

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Building and deploying modern websites and apps - GitHub Universe 2019 - YouTube

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1 2 3 4 5 6 https://github.com/sw-yx/smashingconf-ny-2019/blob/master/readme.md

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https://github.com/ragingwind/next-templates

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ݽ߄ੌҗ ؘझ௼఑ Mobile and Desktop

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Mobile Web Application, web application with a first-class mobile experience

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- App like - Secure - Installable - Offline working - Notification - Discoverable - Device features Progressive Web Apps

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https://speakerdeck.com/addyosmani/fast-by-default-modern-loading-best-practices

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https://speakerdeck.com/addyosmani/fast-by-default-modern-loading-best-practices

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https://speakerdeck.com/addyosmani/fast-by-default-modern-loading-best-practices

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https://speakerdeck.com/addyosmani/fast-by-default-modern-loading-best-practices

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https://speakerdeck.com/addyosmani/fast-by-default-modern-loading-best-practices

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https://speakerdeck.com/addyosmani/fast-by-default-modern-loading-best-practices

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https://speakerdeck.com/addyosmani/fast-by-default-modern-loading-best-practices

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https://speakerdeck.com/addyosmani/fast-by-default-modern-loading-best-practices

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- Accelerated Mobile Pages - Cached by a CDN - Optimised for fast loading - Opinionated Components and HTML

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Native Mobile App, w/ Javascript

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React Native Native Script Vue Native Ionic (Angular) Flutter (Dart)

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ؘझ௼఑ Desktop

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Electron Progressive Webapp

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Electron, the best way to make a desktop app in web technologies on multi-platform

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Practice on embedding Node.js into Atom Editor // Speaker Deck - https://goo.gl/ENyzp9

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PWA for Desktop

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https://developers.google.com/web/updates/2018/05/dpwa

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੗߄झ௼݀౟ ೠߣ ೧ ࠁࣁਃ Try it! Now!