Coding Variables

How are variables created?

• label=value;

• var label = value;

• var value;

• var label;

What does the following lines of code do?

1) var size = 100;

2) background("skyblue");

3) fill("yellow");

4)ellipse(400, 0, size, size);

• Create a yellow ellipse in the top left corner.

• Create a yellow ellipse in the top right corner.

• There was an error due to the size in line 4.

• None of the following answers.

Debug the following lines of code:

1) var 2bugs = 15;

2) fill("red");

3) ellipse(200, 200, bugs, bugs);

• Line 1: label can't start with a number

• Line 3: labels aren't the same as line 1

• Line 1: the declaration of variables isn't done correctly

• There is nothing to fix

Compare how to use variables in coding versus in math class.

Determine the difference between = and ==.

• = means gets the value

  == means comment

• == means gets the value

  = means comment

• = means gets the value

  == means equal to

• They are the same thing