IEx.Helpers.use_if_available

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Link to this macro

use_if_available(quoted_module, opts \\ [])

View Source (macro) (since 1.7.0)

Calls use/2 with the given arguments, but only if the module is available.

This lets you use the module in .iex.exs files (including ~/.iex.exs) without getting compile errors if you open a console where the module is not available.

Example

# In ~/.iex.exs
use_if_available(Phoenix.HTML)