Closure Syntax

Closures are created with vertical bars: |..| ...

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Speaker Notes

This slide should take about 3 minutes.
  • The arguments go between the |..|. The body can be surrounded by { .. }, but if it is a single expression these can be omitted.

  • Argument types are optional, and are inferred if not given. The return type is also optional, but can only be written if using { .. } around the body.

  • The examples are both lambdas – they do not capture anything from their environment. We will see captures next.