28 lines
892 B
Markdown
28 lines
892 B
Markdown
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---
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layout: "docs"
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page_title: "Functions - Configuration Language"
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sidebar_current: "configuration-functions"
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description: |-
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The HCL language has a number of built-in functions that can be called
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from within expressions to transform and combine values.
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---
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# Built-in Functions
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The HCL language includes a number of built-in functions that you can
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call from within expressions to transform and combine values. The general
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syntax for function calls is a function name followed by comma-separated
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arguments in parentheses:
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```hcl
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max(5, 12, 9)
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```
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For more details on syntax, see
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[_Function Calls_](./expressions.html#function-calls)
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on the Expressions page.
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The HCL language does not support user-defined functions, and so only
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the functions built in to the language are available for use. The navigation
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for this section includes a list of all of the available built-in functions.
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