Week 3.2

What is the Document Object Model (DOM)?

• A way of representing the structure and content of a web document using objects

• A web browser

• A programming language

• A database

What programming language are we using in class to manipulate the DOM?

• Python

• Ruby

• JavaScript

• PHP

How does a programmer turn pseudocode into a working program?

• By copying and pasting the pseudocode into a text editor

• By translating each pseudocode instruction into JavaScript code

• By running the pseudocode through a compiler

• By using a pseudocode-to-code conversion tool

Which symbol is used for logical equality in JavaScript?

• =

• ==

• !=

• /=

What is the difference between "=" and "==" in JavaScript?

• "=" is an assignment operator, while "==" is a comparison operator.

• "=" is a comparison operator, while "==" is an assignment operator.

• Both "=" and "==" are comparison operators.

• Both "=" and "==" are assignment operators.

What is the correct syntax for an "if" statement in JavaScript?

• if {condition} then {code to execute}

• if (condition) {code to execute}

• if [condition] {code to execute}

• if {code to execute} (condition)

Which of the following code snippets contains an error in the "if" statement logic test?

• if (x > 5) {alert("x is greater than 5");}

• if (x < 5) {alert("x is less than 5");}

• if (x = 5) {alert("x is equal to 5");}

• if (x == 5) {alert("x is equal to 5");}

What is the purpose of the logic test in an "if" statement?

• To define a variable

• To execute code

• To evaluate a condition and determine whether to execute code or not

• To assign a value to a variable

What is the difference between sequencing and selection in flow control?

• Sequencing involves multiple steps, while selection involves choosing between different options.

• Sequencing involves choosing between different options, while selection involves multiple steps.

• Sequencing and selection are the same thing.

• None of the above.

What does iteration involve in flow control?

• Repeating a set of instructions.

• Choosing between different options

• Steps in sequence.

• None of the above