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signum Function
Note: This page is about Terraform 0.12 and later. For Terraform 0.11 and earlier, see 0.11 Configuration Language: Interpolation Syntax.
signum determines the sign of a number, returning a number between -1 and
1 to represent the sign.
» Examples
> signum(-13)
-1
> signum(0)
0
> signum(344)
1