Review variables

Review: Variables is a text page that capstones the first section on variables.

The page covers the steps involved in using a variable with examples:

  1. Declare it: var myVariable;
  2. Assign initial value: myVariable = 20;
  3. Declare and assign value in one line: var myVariable = 20;
  4. Re-assign value: myVariable = 21;

Spoiler alert: variables are often used with a loop where the value gets reassigned each time the loop runs again.

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