Exam 6: Introducing Javascript

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MATCHING Identify the letter of the choice that best matches the phrase or definition. -Specific rules of grammar in the Javascript language

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E

When working with JavaScript,always ____ contained within the statement block.

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D

A(n)____________________ is a user-defined name for a memory location whose value can change over time.

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variable

When working with JavaScript,always place the ____ directly below the keyword to which it belongs.

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____ is an example of a JavaScript keyword.

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Method names are always followed by a parameter list,even though the list is sometimes empty.____________________

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It would be easier to enter the code that can display simple static text messages in a browser using HTML than to use the JavaScript document.write()method to display the same text messages.

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The syntax of the conditional statement in JavaScript is very important.The statement begins with the keyword if,and then a condition is specified within a pair of parentheses.____________________

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Case 6-2 Daniel is writing JavaScript code to see if the person visiting his Web site is using Microsoft Internet Explorer. -The condition being evaluated in this JavaScript code fragment from Daniel's site is: (navigator.appName == "Microsoft Internet Explorer") In this case,you are utilizing the appName ____ of the navigator object to determine the application name of the current Web browser.

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With JavaScript,the browser will convert the script into its equivalent machine-readable form called ____ code.

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The purpose of the ____ method is to allow a JavaScript program to display a special dialog box that will notify the user that an unexpected event has occurred or that some kind of user input is required.

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FIGURE 6-1 FIGURE 6-1    -Referring to Figure 6-1 above,the operators shown in the chart are often part of a JavaScript ____. -Referring to Figure 6-1 above,the operators shown in the chart are often part of a JavaScript ____.

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A keyword is recognized as part of the ____ definition.

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If you make the mistake of entering HTML tags within a JavaScript code block,your browser will still display them without error.

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The primary purpose of JavaScript is to generate text that will be inserted into the standard ____ text stream.

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In JavaScript,the opening curly brace ( { )indicates the beginning of a statement block,and the closing brace ( } )marks the end of that block.

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A JavaScript condition will always consist of two statements separated by a relational operator.____________________

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Programming languages must be converted from a human-readable form to a machine-readable form by a specialized piece of software called a ____.

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Case 6-1 Kate is new at her company, and has found some existing JavaScript that she would like to use on the company's Web site. -In the JavaScript below,Kate discovers that the lines labeled "input 1;input 2;and input 3;" are called the ____. If (< blank>) { Input 1; Input 2; Input 3; }

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In 1978,two employees of Bell Laboratories,Brian Kernighan and Dennis Ritchie,published a book titled The C Programming Language,and started the tradition to display the phrase ____.

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