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* You cannot define a variable without declaring it first. |
* You cannot define a variable without declaring it first. |
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* Before a variable can be used, it must be defined. |
* Before a variable can be used, it must be defined. |
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Functions work the same way. You can declare a function without defining what it does. |
Functions work the same way. You can declare a function without defining what it does. |
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// The function foo was declared. It takes an integer as an argument and returns an integer. |
// The function foo was declared. It takes an integer as an argument and returns an integer. |
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// What it actually does is currently unknown but can be defined later.</lang> |
// What it actually does is currently unknown but can be defined later.</lang> |
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==Citation== |
==Citation== |
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