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The sethaselement, setintersection, and setunion functions are defined in the cty stdlib. Making them available in Terraform will make it easier to work with sets, and complement the currently-Terraform-specific setproduct function. In the long run setproduct should probably move into the cty stdlib too, but since it was submitted as a Terraform function originally we'll leave it here now for simplicity's sake and reorganize later.
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layout, page_title, sidebar_current, description
| layout | page_title | sidebar_current | description |
|---|---|---|---|
| functions | setintersection - Functions - Configuration Language | docs-funcs-collection-setintersection | The setintersection function takes multiple sets and produces a single set containing only the elements that all of the given sets have in common. |
setintersection Function
The setintersection function takes multiple sets and produces a single set
containing only the elements that all of the given sets have in common.
In other words, it computes the
intersection of the sets.
setintersection(sets...)
Examples
> setintersection(["a", "b"], ["b", "c"], ["b", "d"])
[
"b",
]
The given arguments are converted to sets, so the result is also a set and the ordering of the given elements is not preserved.
Related Functions
sethaselementtests whether a given set contains a given element value.setproductcomputes the cartesian product of multiple sets.setunioncomputes the union of multiple sets.