Linter rule - prefer interpolation

This rule finds uses of the concat function that can be replaced by string interpolation.

Use the following value in the Bicep configuration file to customize rule settings:

prefer-interpolation

Use string interpolation instead of the concat function.

The following example fails this test because the concat function is used.

param suffix string = '001'
var vnetName = concat('vnet-', suffix)

You can fix it by replacing concat with string interpolation. The following example passes this test.

param suffix string = '001'
var vnetName = 'vnet-${suffix}'

Optionally, you can use Quickfix to replace the concat with string interpolation:

For more information about the linter, see Use Bicep linter.