43 lines
1.3 KiB
Markdown
43 lines
1.3 KiB
Markdown
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---
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id: functions
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title: Functions
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---
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## Defining a function
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Body of a function consists of two parts, the first part (**`block {}`** or **`begin ... end`**) - normally consists of logic *(flow conditions, variable declarations, etc.)*, and the second part (**`with ...`**) usually defines the return value of your function.
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<!--DOCUSAURUS_CODE_TABS-->
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<!--Pascaligo-->
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```Pascal
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const availableSupply: nat = 15n;
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const totalSupply: nat = 100n;
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function calculatePrice(const available: nat; const total: nat): nat is
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begin
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const price: nat = total / available
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end with price
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const price: nat = calculatePrice(availableSupply, totalSupply);
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```
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<!--END_DOCUSAURUS_CODE_TABS-->
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### Functions without an explicit body (shorter syntax)
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A short hand syntax for the same function as above can inline the price calculation directly into the return statement.
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While this approach can have it's benefits, it can decrease readability.
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<!--DOCUSAURUS_CODE_TABS-->
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<!--Pascaligo-->
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```Pascal
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const availableSupply: nat = 15n;
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const totalSupply: nat = 100n;
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function calculatePrice(const available: nat; const total: nat): nat is
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block { skip } with total / available
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const price: nat = calculatePrice(availableSupply, totalSupply);
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```
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<!--END_DOCUSAURUS_CODE_TABS-->
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