February 29, 2024

Troubleshooting an Anonymous Function Error in Elixir's IEX

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Source: reddit.com

A new Elixir user, theandreblaze, shared an issue they faced while working with the IEX shell. After defining an anonymous function intended to calculate a value, they tried invoking it using just the variable name. However, in Elixir, invoking anonymous functions stored in variables requires using the `.` syntax. The correct usage would be `lambda.(140.0, 10)`. This is a common hiccup for those new to Elixir and serves as an engaging learning experience for understanding the language's nuances around function invocation.

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