Chapter 4

Question 1

T/F Each time a program calls a procedure, the procedure is added to the top of the call stack, and then removed after it finishes executing

Answer 1

True

Question 2

T/F Syntax refers to the order in which various parts of a program run, or execute

Answer 2

False

Question 3

T/F For each error encountered, a browser’s console displays a line number and a description of the error

Answer 3

True

Question 4

T/F You log values to the console using the window.alert() method

Answer 4

False

Question 5

T/F A breakpoint is a designation added to a specific statement in a program that causes program execution to pause when it reaches that statement

Answer 5

True

Question 6

A(n) BLANK error occurs when the interpreter fails to recognize code

Answer 6

syntax

Question 7

A(n) BLANK error occurs when the JavaScript interpreter encounters a problem while a program is executing

Answer 7

run-time

Question 8

A(n) BLANK error is a flaw in a program’s design that prevents the program from running as you anticipate

Answer 8

logic

Question 9

When using console.log() method to trace bugs, it can be helpful to use a(n) BLANK

Answer 9

driver program

Question 10

The BLANK is the ordered list maintained by a JavaScript processor containing all the procedures that have been called but have not yet finished processing

Answer 10

call stack

Question 11

BLANK allows programs to handle errors as they occur in the execution of a program

Answer 11

Exception handling

Question 12

You enclose code that may contain an exception in a(n) BLANK statement

Answer 12

try

Question 13

You use a(n) BLANK statement within a try block to specify an error message

Answer 13

throw

Question 14

After you throw an error, you use a(n) BLANK to handle the error

Answer 14

catch() statement

Question 15

The rules of a programming language are known as its BLANK

Answer 15

syntax

Question 16

A program’s BLANK is the order in which various parts of the program run or execute

Answer 16

logic

Question 17

The console.log() debugging method results in messages being BLANK

Answer 17

displayed in the browser console

Question 18

The window.alert() debugging method results in messages being BLANK

Answer 18

displayed in dialog boxes

Question 19

The debugging tools built into modern browsers are especially useful in tracking down BLANK

Answer 19

syntax errors

Question 20

BLANK is the temporary suspension of program execution so you can monitor values and trace program execution

Answer 20

break mode

Question 21

After you evaluate code for exceptions, you can use a(n) BLANK to perform cleanup or necessary tasks

Answer 21

finally statement

Question 22

The BLANK JavaScript statement works like a breakpoint

Answer 22

debugger

Question 23

The BLANK JavaScript statement requests that processors remove some features from the language and require more stringent syntax for other features

Answer 23

“use strict”;

Question 24

An infinite loop is an example of a(n) BLANK error

Answer 24

logic

Question 25

Writing values directly to the console is known as BLANK

Answer 25

logging

Question 26

BLANK is the examination of individual statements in an executing program

Answer 26

tracing

Question 27

You implement custom error handling using the BLANK event

Answer 27

error

Question 28

BLANK is the process of tracing and resolving errors in a program

Answer 28

debugging