I would like to read a little more about the + that is usually put in front of a hashref that helps to disambiguate from a code block.

When was it first introduced?

Who first introduced it (recommended it)?

How did people go around the issue before this was introduced? Any trivia or notes that comes to mind while using this syntax?

In reply to About the + in front of a hashref that disambiguates from a code block. by PoorLuzer

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