Function interpolate

[interpolate] is similar to [concat] but is designed to be used as a tagged template expression. i.e.:

     // 'server' and 'loadBalancer' are both resources that expose [Output] properties.
     let val: Output<string> = pulumi.interpolate `http://${server.hostname}:${loadBalancer.port}`
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As with [concat] the 'placeholders' between ${} can be any Inputs. i.e. they can be [Promise]s, [Output]s, or just plain JavaScript values.