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<td>number<td>1, -31, 0.023<td>The ''number'' variable holds any type of number, either an integer or a real number.</td>
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<td>string<td>"Hello World!"<td>The ''string'' variable type stores a string of characters, typically making up either a word or sentence. ''string'' variables can also be assigned empty strings.
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<td>function<td>any user defined function<td>A function is one of the basic building blocks of most programming languages including JavaScript. Functions are used to break up a script into clean, reusable modules. Functions are covered in a later chapter.</td>
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