JavaScript uCertify Chapter 4

Which type of error is typically a syntax error? (it usually appears when a web page or program is opening)

• Mathematical

• Load-time

• Run-time

• Logic

Why is it generally easier to debug run-time and load-time errors than to debug logic errors?

• Because logic errors are rarely caught by debugging tools

• Because run-time and load-time errors prevent the script from rendering at all

• Because syntax errors are rarely caught by debugging tools

• Because logic errors cause error alerts

You should always test your script on as many browsers as possible, and using as many resolutions as feasible. But at a minimum, you should test your Web pages:

(what are the most popular?)

• on Microsoft Internet Explorer and Mozilla Firefox.

• on Mozilla Firefox and Google Chrome.

• on Internet Explorer, Firefox, Chrome, and Safari.

• on Microsoft Internet Explorer.

Which of the following requires additional testing of the code and also helps to develop customized pages for different display sizes and methods of interaction?

• Mobile device

• Monitor resolution

• Video card quality

• Browser version

Which type of error causes no error alert in the browser?

• Load-time

• Run-time

• Logic

• Interpreter

Which type of error is typically caused by improper use of commands and usually causes an error alert?

• Load-time

• Run-time

• Logic

• Compiler

In JavaScript, what is a typical watchpoint?

• A logic error

• An infinite loop

• A syntax error

• An alert() method

The browsers in mobile devices perform differently because they are optimized for:

• inconsistent Internet connections and battery power consumption.

• small display monitors and touch screens.

• the Apple iOS operating system.

• the Google Chrome browser platform.

Which type of error occurs after the script has loaded and is running?

• Run-time

• Load-time

• Logic

• Interpreter

In programming, what term is used for the process of troubleshooting and repairing code that does not work properly or at all?

• Testing

• Compiling

• Interpreting

• Debugging