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Node.Js 562 Background
Eloquent JavaScript 3rd edition Marijn Haverbeke Copyright © 2018 by Marijn Haverbeke This work is licensed under a Creative Commons attribution-noncommercial license (http://creativecommons.org/licenses/by-nc/3.0/). All code in the book may also be considered licensed under an MIT license (https: //eloquentjavascript.net/code/LICENSE). The illustrations are contributed by various artists: Cover and chap- ter illustrations by Madalina Tantareanu. Pixel art in Chapters 7 and 16 by Antonio Perdomo Pastor. Regular expression diagrams in Chap- ter 9 generated with regexper.com by Jeff Avallone. Village photograph in Chapter 11 by Fabrice Creuzot. Game concept for Chapter 16 by Thomas Palef. The third edition of Eloquent JavaScript was made possible by 325 financial backers. You can buy a print version of this book, with an extra bonus chapter in- cluded, printed by No Starch Press at http://a-fwd.com/com=marijhaver- 20&asin-com=1593279507. i Contents Introduction 1 On programming .......................... 2 Why language matters ....................... 4 What is JavaScript? ......................... 9 Code, and what to do with it ................... 11 Overview of this book ........................ 12 Typographic conventions ...................... 13 1 Values, Types, and Operators 15 Values ................................. 16 Numbers ............................... 17 Strings ................................ 21 Unary operators ........................... 24 Boolean values ............................ 25 Empty values ............................ -
Cpu) the Part of a Computer Which Carries out the General-Purpose Instructions of Programs, Includ- Ing Arithmetic, Logic, Control and Input/Output Operations
GLOSSARY 3 3.1 computers central processing unit (cpu) The part of a computer which carries out the general-purpose instructions of programs, includ- ing arithmetic, logic, control and input/output operations. graphics processing unit (gpu) The part of a computer which is designed to quickly produce images and animations such as in a user interface. Its electronic circuitry is far more efficient than a cpu at processing large blocks of visual data in parallel. hardware All the physical parts of a computer, as opposed to its data and software. Hardware components include memory, processors and input/output devices, usually all connected via a main circuit board called the motherboard. input/output (i/o) The communication between a computer and the outside world, such as a human or another computer. Input devices include the mouse, keyboard, touchscreen, cameras, sensors (accelerometers, ambient light sensors), storage devices and routers. Output devices include screens, printers, speakers, storage devices and routers. memory Computer components which record and store data. Mod- ern computers have fast, small and more expensive memory called random access memory (ram) close to the cpu, and slower, cheaper memory called persistent storage further away. ram is used to store data temporarily so operating system (os) Software which manages the relationship that programs can between hardware and application programs, and supports a user use it; it no longer interface for users to control applications. Operating systems stores data when it has no power. This is include OS X, Windows, Linux, Android and iOS. why some operating systems lose your software Sets of rules or instructions, but different from algorithms work when you in that they are written in precise language a computer can don’t save it. -
National Open University of Nigeria School of Science and Technology Course Code: Cit 462 Course Title: Web Server Technology
CIT 462 MODULE 4 NATIONAL OPEN UNIVERSITY OF NIGERIA SCHOOL OF SCIENCE AND TECHNOLOGY COURSE CODE: CIT 462 COURSE TITLE: WEB SERVER TECHNOLOGY 118 CIT 462 WEB SERVER TECHNOLOGY COURSE GUIDE CIT 462 WEB SERVER TECHNOLOGY Course Team Mr. O. O. Adekunle (Course Developer/ Writer)- NOUN Dr.O. Osunade (Course Editor)-UI 119 CIT 462 MODULE 4 NATIONAL OPEN UNIVERSITY OF NIGERIA National Open University of Nigeria Headquarters 14/16 Ahmadu Bello Way Victoria Island, Lagos Abuja Office 5 Dar es Salaam Street Off Aminu Kano Crescent Wuse II, Abuja e-mail:[email protected] URL: www.nou.edu.ng Published by National Open University of Nigeria Printed 2014 ISBN: 978-058-600-8 All Rights Reserved 120 CIT 462 WEB SERVER TECHNOLOGY CONTENTS PAGE Introduction……………………………………………………….. iv What you will Learn in this Course……………………………… iv Course Aims ……………………………………………………... iv Course Objectives………………………………………………… iv Working through the Course…………………………………….. v Course Materials………………………………………………….. v Study Units……………………………………………………….. vi Textbooks and References……………………………………….. vi Assignment File………………………………………………….. vii Assessment……………………………………………………….. viii Tutor-Marked Assignment……………………………………….. viii Final Examination and Grading………………………………….. viii Presentation Schedule……………………………………………. viii Course Marking Scheme…………………………………………. ix Course Overview…………………………………………………. ix How to Get the Most from this Course…………………………... x Facilitators/ Tutors and Tutorials………………………………… xi Summary…………………………………………………………. xi 121 CIT 462 MODULE 4 INTRODUCTION You are expected to read this study guide carefully at the start of this semester. It contains important information about this course. If you need more clarifications, please consult one of the teaching staff. This course material will provide you an in-depth knowledge you will need in order to complete the course. The code for this course is CIT 462 and the course title is Web Server Technology. -
Javascript for Impatient Programmers (ES2021 Edition)
2 JavaScript for impatient programmers (ES2021 edition) Dr. Axel Rauschmayer 2021 “An exhaustive resource, yet cuts out the fluff that clutters many programming books – with explanations that are understandable and to the point, as promised by the title! The quizzes and exercises are a very useful feature to check and lock in your knowledge. And you can definitely tear through the book fairly quickly, to get up and running in JavaScript.” — Pam Selle, thewebivore.com “The best introductory book for modern JavaScript.” — Tejinder Singh, Senior Software Engineer, IBM “This is JavaScript. No filler. No frameworks. No third-party libraries. If you want to learn JavaScript, you need this book.” — Shelley Powers, Software Engineer/Writer Copyright © 2021 by Dr. Axel Rauschmayer Cover by Fran Caye All rights reserved. This book or any portion thereof may not be reproduced or used in any manner whatsoever without the express written permission of the publisher except for the use of brief quotations in a book review or scholarly journal. ISBN 978-1-09-121009-7 exploringjs.com Contents I Background 9 1 Beforeyoubuythebook 11 1.1 About the content ............................... 11 1.2 Previewing and buying this book ...................... 12 1.3 About the author ............................... 12 1.4 Acknowledgements .............................. 13 2 FAQ: book and supplementary material 15 2.1 Howtoreadthisbook ............................ 15 2.2 I own a digital version ............................ 16 2.3 I own the print version ............................ 17 2.4 Notations and conventions .......................... 17 3 History and evolution of JavaScript 19 3.1 How JavaScript was created ......................... 19 3.2 Standardizing JavaScript ........................... 20 3.3 Timeline of ECMAScript versions ..................... -
A Modern Introduction to Programming
Eloquent JavaScript A Modern Introduction to Programming Marijn Haverbeke Copyright © 2014 by Marijn Haverbeke This work is licensed under a Creative Commons attribution-noncommercial license (http://creativecommons.org/licenses/by-nc/3.0/). All code in the book may also be considered licensed under an MIT license (http://opensource.org/licenses/ MIT). The illustrations are contributed by various artists: Cover by Wasif Hyder. Computer (introduction) and unicycle people (Chapter 21) by Max Xiantu. Sea of bits (Chapter 1) and weresquirrel (Chapter 4) by Margarita Martínez and José Menor. Octopuses (Chapter 2 and 4) by Jim Tierney. Object with on/off switch (Chapter 6) by Dyle MacGregor. Regular expression diagrams in Chapter 9 generated with regexper.com by Jeff Avallone. Game concept for Chapter 15 by Thomas Palef. Pixel art in Chapter 16 by Antonio Perdomo Pastor. The second edition of Eloquent JavaScript was made possible by 454 financial backers. You can buy a print version of this book, with an extra bonus chapter included, printed by No Starch Press at http://www.amazon.com/gp/product/1593275846/ref=as_ li_qf_sp_asin_il_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=1593275846&linkCode= as2&tag=marijhaver-20&linkId=VPXXXSRYC5COG5R5. i Contents On programming .............................. 2 Why language matters ........................... 3 What is JavaScript? ............................. 6 Code, and what to do with it ....................... 7 Overview of this book ............................ 8 Typographic conventions .........................