...JavaScript is the most popular scripting language on the internet, and works in all major browsers, such as Internet Explorer, Firefox, Chrome, Opera, and Safari. [pic] What You Should Already Know Before you continue you should have a basic understanding of the following: • HTML / XHTML If you want to study these subjects first, find the tutorials on our Home page. [pic] What is JavaScript? • JavaScript was designed to add interactivity to HTML pages • JavaScript is a scripting language • A scripting language is a lightweight programming language • JavaScript is usually embedded directly into HTML pages • JavaScript is an interpreted language (means that scripts execute without preliminary compilation) • Everyone can use JavaScript without purchasing a license [pic] Are Java and JavaScript the same? NO! Java and JavaScript are two completely different languages in both concept and design! Java (developed by Sun Microsystems) is a powerful and much more complex programming language - in the same category as C and C++. [pic] What can a JavaScript do? • JavaScript gives HTML designers a programming tool - HTML authors are normally not programmers, but JavaScript is a scripting language with a very simple syntax! Almost anyone can put small "snippets" of code into their HTML pages • JavaScript can put dynamic text into an HTML page - A JavaScript statement like this: document.write("" + name + "") can write...
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...11 ASP.NET In this chapter you will: o o o o o o Learn about client/server architecture Study server-side scripting Create ASP .NET applications Learn about object collections Study ASP .NET’s core objects Create a guest book CHAPTER Y our Web browser is a client in the client/server environment of the Web. Up to this point, this book has focused on client-side JavaScript development in Web browsers. For you to develop a full complement of Web development skills, you also need to understand the server side of the Web— in particular, how server-side scripting fits into Web development. In this chapter, you will study server-side scripting with ASP.NET. But before getting into server-side scripting, it’s helpful to set the stage by reviewing the fundamentals of client/server architecture. 507 508 Chapter 11 ASP.NET CLIENT/SERVER ARCHITECTURE There are many definitions of the term’s client and server. In traditional client/server architecture, the server is usually some sort of database from which a client requests information. A server fulfills a request for information by managing the request or serving the requested information to the client—hence the term, client/server. A system consisting of a client and a server is known as a two-tier system. One of the primary roles of the client, or front end, in a two-tier system is the presentation of an interface to the user.The user interface gathers information from the user, submits it to a server, or back...
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...interface gathers information from the user, submits it to a server, or back end, then receives, formats, and presents the results. . What does the middle tier do in a three-tier architecture? The middle tier handles the interaction between the web browser client and the data storage tier. Essentially, the client tier makes a request of a database on a web server. The processing tier performs any necessary processing or calculations based on the request from the client tier, and then reads information from or writes information to the data storage tier. The processing tier also handles the return of any information to the client tier. . What is ECMAScript? Why was it created? ECMAScript is an international, standardized version of JavaScript. It was...
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...Selenium Reference Concepts A command is what tells Selenium what to do. Selenium commands come in three 'flavors': Actions, Accessors and Assertions. Each command call is one line in the test table of the form: |command |target |value | Actions are commands that generally manipulate the state of the application. They do things like "click this link" and "select that option". If an Action fails, or has an error, the execution of the current test is stopped. Many Actions can be called with the "AndWait" suffix, e.g. "clickAndWait". This suffix tells Selenium that the action will cause the browser to make a call to the server, and that Selenium should wait for a new page to load. Accessors examine the state of the application and store the results in variables, e.g. "storeTitle". They are also used to automatically generate Assertions. Assertions are like Accessors, but they verify that the state of the application conforms to what is expected. Examples include "make sure the page title is X" and "verify that this checkbox is checked". All Selenium Assertions can be used in 3 modes: "assert", "verify", and "waitFor". For example, you can "assertText", "verifyText" and "waitForText". When an "assert" fails, the test is aborted. When a "verify" fails, the test will continue execution, logging the failure. This allows a single "assert" to ensure that the application is on the correct page, followed by a bunch of "verify" assertions to test form field values...
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...Introduction to Javascript JavaScript has been around for several years now, in many different flavors. The main benefit of Javascript is to add additional interaction between the website and its visitors with just a little extra work by the web developer. Javascript allows industrious web masters to get more out of their website than HTML and CSS can provide. By definition, JavaScript is a client-side scripting language. This means the web surfer's browser will be running the script. The opposite of client-side is server-side, which occurs in a language like PHP. PHP scripts are run by the web hosting server. How To Write JavaScript If you have ever used CSS before, you will find the whole part about including JavaScript will be a lot simpler to grasp. Here are Tizag's three important steps you should always follow when creating or using someone else's JavaScript code: 1. Use the script tag to tell the browser you are using JavaScript. 2. Write or download some JavaScript 3. Test the script! There are so many different things that can go wrong with a script, be it human error, browser compatibility issues, or operating system differences. So, when using JavaScript, be sure that you test your script out on a wide variety of systems and most importantly, on different web browsers. Your First JavaScript Script To follow the classic examples of many programming tutorials, let's use JavaScript to print out "Hello World" to the browser. I know this isn't very interesting...
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...while achieving the highest quality in both media. The joining of these two great programs empowers Web developers to perform advanced Web-production tasks such as JavaScript rollovers, animations, sliced images and image maps with the advanced features of ImageReady. Not only that, but ImageReady will write the JavaScript and HTML to make your task even easier! Adobe-standard User Interface Photoshop and ImageReady are seamlessly integrated. The menu structure, tool boxes and palettes common to all of Adobe’s professional graphics programs are present. This eases the learning curve, thus allowing the user to concentrate on creating graphics. Workflow is enhanced with the addition of a nifty little Jump To icon on the toolbox of both programs. The Jump To button whisks both you and your graphic between programs while preserving all edits, effects, layers, attributes and history. Edits in one program may be easily undone in the other via the preserved history palette. Powerful JavaScript Rollover Effects Complex rollover effects are a snap in ImageReady. ImageReady’s built in Actions will add instant rollover effects creating interactive buttons for an entire navigation system in a matter of minutes. And again, it will write the HTML and the JavaScript; no need for you to write a single line of JavaScript code. Make some changes to your buttons after you’ve saved the HTML file? Not a problem, the Update HTML feature is all you need to put a new image and updated HTML...
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...ArcGIS viewer for Flex vs. Silverlight vs. Using HTML 5 for ArcGIS Both ArcGIS viewer for Flex and Silverlight are both applications that make it possible for users to create their own web GIS applications and make them available for intranet and Internet use by using a web serve. The viewer for flex is produced by Adobe and has been around longer than the viewer for Silverlight which is produced by Microsoft; thus, there may be more valuable resource available for flex viewer than for Silverlight viewer (widgets for flex viewer, add-ins for Silverlight). Flex web applications can be developed by using any IDE that supports adobe flex (i.e., Eclipse and Adobe Flash Builder). Silverlight applications can be developed with any .NET programming language (C#, etc.); or software can be used in the form of Microsoft Visual Studio. Developing a Flex viewer widget, however, appears to be much easier than developing an add-in for Silverlight viewer. To develop a Flex widget, you use ArcGIS API for Flex (using the same framework for extending the viewer and developing your own applications from scratch). With the Silverlight viewer, you need to use a separate application, ArcGIS Extensibility SDK for Silverlight, which looks a bit more complex to me compared to ArcGIS API for Silverlight because it follows the Model View ViewModel (MVVM) pattern. With the Silverlight viewer, appears to let end users modify symbology of layers in the created web applications without modifying the original...
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...Answer | | | | | Selected Answer: | <script language="javascript"> | Correct Answer: | <!--Hide from old browsers--> | | | | | * Question 3 0 out of 0.5 points | | | Which of the following is true regarding naming conventions for functions?Answer | | | | | Selected Answer: | it must include a period | Correct Answer: | it must begin with a letter or an underscore | | | | | * Question 4 0 out of 0.5 points | | | Which of the following objects represents a set of characters?Answer | | | | | Selected Answer: | set | Correct Answer: | string | | | | | * Question 5 0 out of 0.5 points | | | Which of the following is not a valid JavaScript variable name?Answer | | | | | Selected Answer: | Prices | Correct Answer: | Zip.Code | | | | | * Question 6 0.5 out of 0.5 points | | | A(n) ____ variable is one whose value is available only in the function in which it is defined.Answer | | | | | Selected Answer: | local | Correct Answer: | local | | | | | * Question 7 0 out of 0.5 points | | | ____ data types are variables that hold characters or a combination of letters, numbers, or symbols.Answer | | | | | Selected Answer: | Symbol | Correct Answer: | String | | | | | * Question 8 0 out of 0.5 points | | | A(n) ____ function is JavaScript code written to perform certain tasks repeatedly.Answer | | | | ...
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...in detail why. In order to take a test you have to click through several pages of text which all have timers associated to them. For example, a full page of text may be a 2 minute timer which prevents you from continuing until you have stayed on the page for a minimum of 2 minutes. This is an attempt to make sure you actually read the content on each page. It is very annoying, and painful. If you have to wait for all of the timers I’m guessing it will probably take 8 hours to complete the online driving school. After waiting for about 10 minutes I realized I better find a solution to this. I viewed the page source and noticed the timer is client side based javascript. Great news, lets disable Javascript in the browser! In Firefox click on Tools -> Options… -> Content tab, uncheck the ‘Enable Javascript’ checkbox, click Ok. Voila, no more timers!! If you ever get a blank page while taking this...
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...Gjhgjkhjkljljkl;jk; Javascript JavaScript is the most popular scripting language on the internet, and works in all major browsers, such as Internet Explorer, Firefox, Chrome, Opera, and Safari. [pic] What You Should Already Know Before you continue you should have a basic understanding of the following: • HTML / XHTML If you want to study these subjects first, find the tutorials on our Home page. [pic] What is JavaScript? • JavaScript was designed to add interactivity to HTML pages • JavaScript is a scripting language • A scripting language is a lightweight programming language • JavaScript is usually embedded directly into HTML pages • JavaScript is an interpreted language (means that scripts execute without preliminary compilation) • Everyone can use JavaScript without purchasing a license [pic] Are Java and JavaScript the same? NO! Java and JavaScript are two completely different languages in both concept and design! Java (developed by Sun Microsystems) is a powerful and much more complex programming language - in the same category as C and C++. [pic] What can a JavaScript do? • JavaScript gives HTML designers a programming tool - HTML authors are normally not programmers, but JavaScript is a scripting language with a very simple syntax! Almost anyone can put small "snippets" of code into their HTML pages • JavaScript can put dynamic text into an HTML page - A JavaScript statement like this: document...
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...University of Phoenix WEB/238 May 29, 2012 Tanisha D. Jackson Web Development and the Use of Javascript Creating a Website and presenting it online to users across the world has become a regular occurrence over the past few decades. Web pages belong to companies with services to sell, and others, to individuals with information to share. The basic Web site is built with HTML, and then creatively enhanced with CSS. To create a visually expressive Web site that can attract thousands of visitors each day you need to use more than HTML and decide what the site contains. There are different languages that can be used to add a sense of style to your site, some of the possible devices are JavaScript, Java, DOM, and AJAX. In the following paper our team will discuss a few examples of how each can be used in Web development. Comparison of Java and JavaScript Java and JavaScript are both object-oriented languages (Burns, 2012). Knowing how to use one language often becomes confusing when attempting to learn the other. Some of the differences between the two are that Java applets can create stand-alone applications that work across platforms running as standalone programs. However, JavaScript cannot create these stand-alone applications and reside on an Internet browser. A programmer must compile Java code before the program can run. This requires an outside program just to compile the code. A compiler turns Java code into machine...
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...is the first installment of a two-part series that introduces advanced JavaScript techniques in Windows Internet Explorer 8. Web applications have come a long way since the birth of the static Web page. Today, Web developers need improved programming functionality, flexibility, and features to enable them to build the next generation of Web applications. The Internet Explorer Web platform provides many of the features and functionality necessary to build those applications. Where the Web platform's built-in support ends, JavaScript, the principle scripting language used on the Web, is often used to code innovative new features that supplement the Web platform, cater to Web site specific scenarios, normalize differences between browsers, and so on. To further empower Web developers with the programming tools necessary to build new JavaScript scenarios that innovate, extend, and build-upon the Web platform, Internet Explorer 8 offers a collection of features that extend some of JavaScript's advanced functionality into the Document Object Model (DOM). This article provides an overview of JavaScript prototype inheritance and introduces the DOM prototypes feature available in Internet Explorer 8; Part 2 introduces a new type of JavaScript property called an accessor property (or getter/setter property). Prototypes in JavaScript To begin a discussion of DOM prototypes, it is crucial to understand the JavaScript notion of "prototypes." Simply put, a prototype is like a class object...
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... Give the syntax of do..while statement. do { text += "The number is " + i; i++; } while (i < 10); 2. Explain how an image could be accessed by name and by array number. You can access an image by name by simply putting the name between quotes. To access an image by number you must first give each image a number in the image array. The images should be numbered in the order that they appear in the source code. var document.images=new Array (3) document.images[0]="ImageOne.png" document.images[1]="ImageTwo.png" 3. Write a function that uses substring method of String object to get the 'Scr' part of the string 'JavaScript'. Also use the length property and write the length of the string 'JavaScript' and use the charAt method to get the 'S' from 'JavaScript' and write that. var str="JavaScript"; document.write(str.substring(4,7)+" "); 4. Explain how a Date object's instance is created and used. Also describe any three methods of the Date object. Data objects are used by the destination application either the client or the server. A data object in the destination application is one end of a connection between the source application and the destination application. A data object in the destination application is used to access and interact with the data in the data source. There are two common situations where a data object is needed. The first situation is when data is dropped in your application using drag and drop. The second situation...
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...COMP101 – Problem Solving with Computing Homework - WEEK 12 [30 points] This is further review of some of the material from Chapter 6, some simple steps in coding using JavaScript and the repl.it website, and lectures from class. No credit for answers that are copies or near verbatim transcripts – please use your own words[1] and document sources where appropriate. Chapter 7 Answer the following questions: 1. JavaScript Debugging Exercises [1 point each, 5 points total] The snippets of JavaScript below contain syntax errors and/or logic errors. Identify the errors and insert your corrected code. a. function main() { var num1 = getNumber(); var num2 = getNumber(); } function getNumber() { var input = Number(prompt("Enter a number")); } main(); b. function main() { var total = 0; for (var ctr = 0; ctr < 10; ctr++) { total = computeTotal(total); } } function computeTotal(total, ctr) { total = total + ctr; return total; } main(); c. function main() { var playerName1; var playerName2; playerName1, playerName2 = getPlayerNames(); } function getPlayerNames() { var name1 = prompt("Enter the name of player1"); return name1; var name2 = prompt("Enter the name of player2"); return name2; } main(); d. module main() ...
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...sADOBE® INTRODUCTION TO SCRIPTING © Copyright 2007 Adobe Systems Incorporated. All rights reserved. Introduction to Scripting for Windows® and Macintosh®. NOTICE: All information contained herein is the property of Adobe Systems Incorporated. No part of this publication (whether in hardcopy or electronic form) may be reproduced or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written consent of Adobe Systems Incorporated. The software described in this document is furnished under license and may only be used or copied in accordance with the terms of such license. This publication and the information herein is furnished AS IS, is subject to change without notice, and should not be construed as a commitment by Adobe Systems Incorporated. Adobe Systems Incorporated assumes no responsibility or liability for any errors or inaccuracies, makes no warranty of any kind (express, implied, or statutory) with respect to this publication, and expressly disclaims any and all warranties of merchantability, fitness for particular purposes, and noninfringement of third party rights. Any references to company names in sample templates are for demonstration purposes only and are not intended to refer to any actual organization. Adobe®, the Adobe logo, Illustrator®, InDesign®, and Photoshop® are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries. Apple®...
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