John Larsen – författare

This study seeks to help inform federal and state policymakers, energy producers, investors, and consumers about the potential energy market impacts of state and federal policy decisions associated with the Clean Power Plan as proposed. The report outlines the potential electric power sector and broader energy market impacts of policy design options and implementation choices by modeling the Clean Power Plan. In addition to mapping out the impacts on the electric power sector and consumers, the report also assesses the impact of the Clean Power Plan on potential changes in natural gas and coal production at the national and regional level.

This study seeks to help inform federal and state policymakers, energy producers, investors, and consumers about the potential energy market impacts of state and federal policy decisions associated with the Clean Power Plan as proposed. The report outlines the potential electric power sector and broader energy market impacts of policy design options and implementation choices by modeling the Clean Power Plan. In addition to mapping out the impacts on the electric power sector and consumers, the report also assesses the impact of the Clean Power Plan on potential changes in natural gas and coal production at the national and regional level.

The dramatic, high-stakes account of Artemis II, the first human journey into deep space in fifty years, told from the perspective of Canadian astronaut Jeremy HansenThe historic Artemis II mission was celebrated around the world and broke the record for the farthest distance humans have ever travelled from Earth. Jeremy Hansen and his crew mates viewed parts of the moon never before seen by human eyes, journeyed a total of 1,126,922 kilometres, took the next step in space travel—and won the hearts of everyone back home on Earth in the process. Now, Earthrise gives readers a passenger-seat view into the daring deep-space journey and the long years of intense training, grit, and perseverance Hansen needed to prepare for lift-off and fulfill his lifelong dream of becoming an astronaut.A riveting and intimate account of the iconic achievement of Artemis II, Earthrise—written by author John Larsen and based on extensive interviews he conducted with Hansen—is a testament to what can be achieved with unity, teamwork, and a bold belief in humanity’s ability to reach for the stars.

Build stylish, slick, and speedy-to-load user interfaces in React without writing custom classes. React Hooks are a new category of functions that help you to manage state, lifecycle and side effects within functional components.  React Hooks in Action teaches you to use pre-built hooks like useState, useReducer and useEffect, and to build your own hooks. Your code will be more reusable, require less boilerplate, and you’ll instantly be a more effective React developer.   About the technology   React Hooks promise to make React programmers even more productive. Hooks are a collection of pre-built and custom functions that give you a simpler API for working with key React functionalities. Hooks cleanly encapsulate side effects, make it easier to reuse components between projects, and result in less code overall. These new features represent a fundamental evolution in how the React library functions, so even experienced React developers will want to get up to speed with Hooks.   About the book   React Hooks in Action shows you how to use Hooks to make your codebase simpler and more reusable, and your applications faster and more responsive. You’ll build a resource booking example application chapter by chapter, learning how to develop components with local, shared, and application states. You’ll discover different approaches to data fetching, including using Concurrent Mode and Suspense to improve user experience, and explore third party hooks in the evolving React ecosystem.   What's inside Create a Redux store and interact with it via Hooks Use code-splitting to improve the responsiveness of your apps Build functional components that can update their own state Manage component side effects Use the React Suspense API to improve the user experience of page and data loading About the reader   For front-end web developers experienced with React.   About the author   John Larsen is the author of  Get Programming with JavaScript. He was a mathematics and computing teacher for 25 years. He has an MA in mathematics and an MSc in information technology, and an ongoing interest in educational research. A web developer since 2000, he uses JavaScript end-to-end for server-side and client-side programming.

React Hooks in Action teaches you to write fast and reusable React components using Hooks.Summary Build stylish, slick, and speedy-to-load user interfaces in React without writing custom classes. React Hooks are a new category of functions that help you to manage state, lifecycle, and side effects within functional components. React Hooks in Action teaches you to use pre-built hooks like useState, useReducer and useEffect to build your own hooks. Your code will be more reusable, require less boilerplate, and you’ll instantly be a more effective React developer. About the technology Get started with React Hooks and you’ll soon have code that’s better organized and easier to maintain. React Hooks are targeted JavaScript functions that let you reuse and share functionality across components. Use them to split components into smaller functions, manage state and side effects, and access React features without classes—all without having to rearrange your component hierarchy. About the book React Hooks in Action teaches you to write fast and reusable React components using Hooks. You’ll start by learning to create component code with Hooks. Next, you’ll implement a resource booking application that demonstrates managing local state, application state, and side effects like fetching data. Code samples and illustrations make learning Hooks easy. What's inside     Build function components that access React features     Manage local, shared, and application state     Explore built-in, custom, and third-party hooks     Load, update, and cache data with React Query     Improve page and data loading with code-splitting and React Suspense About the reader For beginning to intermediate React developers. About the author John Larsen has been a teacher and web developer for over 20 years, creating apps for education and helping students learn to code. He is the author of Get Programming with JavaScript. Table of Contents PART 1 1 React is evolving 2 Managing component state with useState hook 3 Managing component state with useReducer hook 4 Working with side effects 5 Managing component state with useRef hook 6 Managing application state 7 Managing performance with useMemo 8 Managing state with the Context API 9 Creating your own hooks 10 Using third party hooks PART 2 11 Code splitting with Suspense 12 Integrating data-fetching with Suspense 13 Experimenting with useTransition, useDeferredValue and SuspenseList

SummaryGet Programming with JavaScript is a hands-on introduction to programming for readers who have never programmed. You''ll be writing your own web apps, games, and programs in no time! Foreword by Remy Sharp.Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications.About the BookAre you ready to start writing your own web apps, games, and programs? You’re in the right place! Get Programming with JavaScript is a hands-on introduction to programming for readers who have never written a line of code. Since you’re just getting started, this friendly book offers you lots of examples backed by careful explanations. As you go along, you’ll find exercises to check your understanding and plenty of opportunities to practice your new skills. You don’t need any­thing special to follow the examples—just the text editor and web browser already installed on your computer. We even give you links to working online code so you can see how everything should look live on your screen.What’s InsideAll the basics—objects, functions, responding to users, and moreThink like a coder and design your own programsCreate a text-based adventure gameEnhance web pages with JavaScriptRun your programs in a web browserFour bonus chapters available onlineAbout the ReaderNo experience required! All you need is a web browser and an internet connection.About the AuthorJohn Larsen is a mathematics and computing teacher with an interest in educational research. He has an MA in mathematics and an MSc in information technology. He started programming in 1982, writing simple programs for teaching mathematics in 1993, building websites in 2001, and developing data-driven web-based applications for education in 2006.Table of Contents

PART 1 CORE CONCEPTS ON THE CONSOLE

Programming, JavaScript, and JS BinVariables: storing data in your programObjects: grouping your dataFunctions: code on demandArguments: passing data to functionsReturn values: getting data from functionsObject arguments: functions working with objectsArrays: putting data into listsConstructors: building objects with functionsBracket notation: flexible property names

PART 2 ORGANIZING YOUR PROGRAMS

Scope: hiding informationConditions: choosing code to runModules: breaking a program into piecesModels: working with dataViews: displaying dataControllers: linking models and views

PART 3 JAVASCRIPT IN THE BROWSER

HTML: building web pagesControls: getting user inputTemplates: filling placeholders with dataXHR: loading dataConclusion: get programming with JavaScript

BONUS ONLINE CHAPTERS

Node: running JavaScript outside the browserExpress: building an APIPolling: repeating requests with XHRSocket.IO: real-time messaging

Sagohjälten Odysseus är född cirka 1260 f.kr på den tidigare ön Od på Norra Själland därav namnet Odisse på grekiska Odysseus.Han bor nära öarna Same och Samos den dubbla ön Samsø.Vid sin hemkomst efter kriget går han i land vid den härliga källan Aretusa det är Tuse å i Ods härad.Det höga berget Parnas (Od.19-411,431) är klinten Fornæs på Djursland.Han har plundrat den nordtyska stad Wismar som heter Ismaros i Odysséen.En storm drivar honom dit från Troja det är staden Bergen på ön Rügen till fajakernas borg på Östergarnsholm öster om Gotland.Samma storm drivar Menelaos upp till Faros ön Fårö som heter Farøø på 1300-tallet.Han var kund på gudinnan Kirkes bordell på ön Ajaje det är ön Eire (Irland).Den trojanska hästen är den samma som den nordiska åttabente hästen Sleipner.Iliaden Bråvallaslaget och det irska epos Invasionernes bok är samma krig.Hela Iliaden finns på hällristningen i Fossum i Tanumshede.Boken har 41 färgfoton och 16 från Fossum med bra och tydliga förklaringar som gör denna bok till en fantastisk guide när du står vid hällristningen. Du ser från vänster: Den gudomligt vackra Helene (Od.4-304). Diomedes och guden Ares med vingar den stora Akilles (Egil) som får en pil i sin häl - det dör han av. Hektor med sin 6 meter långa lans mot kamphundar som äter lik. Nederst Odysseus, Diomedes som har fått en pil i höger fot (Il.11-377) och Ajas. Inne i mitten tre sårade krigare sida om sida och stödda på sina spjut (Il.14-37).Boken är på rolig och lättläst danska.