Using Variables

Question 1

What is the line of code that will prompt “Hello, world” and

Answer 1

alert(“Hello, world”);

Question 2

What line in the HTML webpage points to the JS you wrote that triggers the “Hello, world” promote?

Question 3

What line of code would assign the variable ‘name’ and value? How would you use that in the “hello” prompt?

Answer 3

1) var name = prompt(“What is your name”);

2) alert(“Hello “ + name);

Question 4

After what input does the code continue on to display the “Hello” + name prompt?

Answer 4

When the user provides an input. Essentially the code stops until the user puts ANYTHING.

Question 5

Variables are just ______ that hold information that you can ___ ___ in later lines of ode

Answer 5

Containers / Call Back

Question 6

Create a variable for the year, month and day.

Answer 6

var year = 2014;
var month = December;
var day = 10;

Question 7

What is the shortest way to write define variables for year, month and day?

Answer 7

var year = 2014, month = December, day = 10;

Question 8

What is the assignment operator for variables?

Answer 8

” = “

Question 9

What is wrong with the following variable? var name = 26Darius;

Answer 9

You can not start a variable with a number.

Question 10

What the only 4 elements you can use when defining a variable?

Answer 10

Letters
Numbers
+
_ (underscore)