Chapter 3 Key Terms

Question 1

Array

Answer 1

A set of data represented by a single variable name.

Question 2

Array Literal

Answer 2

A single statement that declares an array variable and its content.

Question 3

Browser Test

Answer 3

A conditional statement that tests whether a feature of the JavaScript language is supported by the browser.

Question 4

Callback Function

Answer 4

A function that is passed as a parameter to another function or method.

Question 5

Conditional Statement

Answer 5

A special type of JavaScript statement used for making decisions.

Question 6

Controlling Flow

Answer 6

Changing the order in which JavaScript code is executed.

Question 7

Counter

Answer 7

A variable that is incremented or decremented with each iteration of a program loop.

Question 8

Decision Making

Answer 8

The process of choosing which code to execute at a given point in an application.

Question 9

Decision-making statement

Answer 9

A special type of JavaScript statement used for making decisions.

Question 10

Decision-making structure

Answer 10

A special type of JavaScript statement used for making decisions.

Question 11

Element

Answer 11

An individual value contained in an array or a page object marked within an HTML file.

Question 12

Fallthrough

Answer 12

A situation in which execution of a switch statement does not stop after the statements for a particular case label are executed, but continues evaluating the rest of the case labels in the list.

Question 13

HTML Collection Project

Answer 13

A group of HTML elements within the Document Object Model.

Question 14

Index

Answer 14

A number associated with an element in an array, which represents the element’s position within the array.

Question 15

Infinite Loop

Answer 15

A program loop than repeats without end.

Question 16

Iteration

Answer 16

Each repetition of a program loop.

Question 17

Matrix

Answer 17

Numbers stored in a rectangular grid of rows and columns.

Question 18

Multidimensional Array

Answer 18

A data structure in which two or more arrays are nested within one another.

Question 19

Nested decision-making structure

Answer 19

The type of structure created by nesting one decision-making statement within another decision-making statement.

Question 20

Posttest loop

Answer 20

A program loop in which the stopping condition is evaluated after the command block has been executed at least once.

Question 21

Pretest loop

Answer 21

A program loop in which the stopping condition is evaluated before each iteration of the command block.

Question 22

Program loop

Answer 22

A command block that is executed repeatedly until a stopping condition is met.

Question 23

Spaghetti code

Answer 23

A pejorative programming term that refers to convoluted or poorly written code.

Question 24

Sparse array

Answer 24

An array in which some array elements are left undefined so that the length of the array is not the same as the number of defined values.