Web Development Tutorial 9 Quiz Review

Identify the syntax to set the time delay for time-delayed commands.

• SettimeOut(delay);

• Setinterval(interval);

• setTimeout(“command”, delay);

• setInterval(“command”, interval);

Answer explanation

w3schools:

https://www.w3schools.com/jsref/met_win_settimeout.asp

​ (a)   programming distributes the load to prevent a server from getting overloaded with program-related requests.

• Client-side
• Server-side
• Inductive
• Object-oriented

Answer explanation

Client-side programming distributes the load so that one server is not overloaded with program-related requests; it tends to be more responsive because users do not have to wait for a response from a remote server.

Identify a command that displays a dialog box containing the message “Hello World!”

• Window.alert(“Hello World!”);

• Window.Alert(“Hello World!”);

• window.Alert(“Hello World!”);

• window.alert(“Hello World!”);

Answer explanation

Javascript is case sensitive.

So window.alert() is different than Window.alert(), etc.

function function_name(parameters)

{

    commands

}

Is the correct format for a function

• True

• False

Answer explanation

Note: it does not matter where you place the { and } brackets.

I prefer to put them on separate lines so they're easy to pair up when debugging the code.

Use the ​ (a)   attribute to ensure that JavaScript code runs only after the page has completed loading.

• defer
• async
• time
• interval

Answer explanation

The ​ (a)   function returns a Boolean value of true if the value is not numeric.

• isNaN()
• isNum()
• isNotNum()
• isBool()

Answer explanation

The term "intrinsic" means what when speaking about Javascript objects?

• built-in

• event-driven

• cosmetic

• functional

Answer explanation

​ (a)   are treated as variables ​ (b)   a function

• Parameters
• within
• outside
• Methods

Answer explanation

To break a text string into several lines, which means that the text string continues on the next line, the _____ character should be used.

• backslash \

• slash /

• pipe |

• ampersand &

Answer explanation

Note: if you type a very long line, Dreamweaver will use a "soft" break/wrap.

The text will be wrapped so it fits in the current window but there will be no line numbers for the wrapped text.

If you want to put an explicit break in your code, use the backslash character: \

You can find it above the ENTER key.

The ​ (a)   keyword send a value from a function back to the code that called the function.

• return
• send
• complete
• caller

Answer explanation