mirror of https://github.com/coder/coder.git
21 lines
455 B
Go
21 lines
455 B
Go
package cryptorand
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import (
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"golang.org/x/xerrors"
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)
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// Element returns a random element of the slice. An error will be returned if
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// the slice has no elements in it.
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func Element[T any](s []T) (out T, err error) {
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if len(s) == 0 {
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return out, xerrors.New("slice must have at least one element")
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}
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i, err := Intn(len(s))
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if err != nil {
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return out, xerrors.Errorf("generate random integer from 0-%v: %w", len(s), err)
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}
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return s[i], nil
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}
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