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30 lines
603 B
Markdown
30 lines
603 B
Markdown
---
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layout: "language"
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page_title: "keys - Functions - Configuration Language"
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sidebar_current: "docs-funcs-collection-keys"
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description: |-
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The keys function returns a list of the keys in a given map.
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---
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# `keys` Function
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`keys` takes a map and returns a list containing the keys from that map.
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The keys are returned in lexicographical order, ensuring that the result will
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be identical as long as the keys in the map don't change.
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## Examples
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```
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> keys({a=1, c=2, d=3})
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[
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"a",
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"c",
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"d",
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]
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```
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## Related Functions
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* [`values`](./values.html) returns a list of the _values_ from a map.
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