JavaScript Functions Worksheet

Question 1

What is a function, and why would you ever want to use one in your code?

a function is something you can create if you have a large amount of a repeated promp that you can automate

Question 2

What do you call the values that get passed into a function?

arguments

Question 3

What is the 'body' of a function, and what are the characters that enclose the body of a function?

curly braces

Question 4

What does it mean to 'call', or 'invoke' a function (note that 'calling' and 'invoking' a function mean the same thing)?

to execute the code in the function

Question 5

If a function has more than one parameter, what character do you use to separate those parameters?

you use , to seperate those perams

Question 6

What is the problem with this code (explain the syntax error)?


function convertKilometersToMiles(km)
    return km * 0.6217;
}

no starting curly bracket

Question 7

In the code below, there are two functions being invoked. Which one returns a value? Explain why you know this.


const name = prompt("Enter your name");
alert("Hello " + name + "!");

alert does because the const name is just prompting you to enter your name

Coding Problems

Always test your work! Check the console log to make sure there are no errors.