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Nim / Procedures

proc

Learn proc in Nim with a construct-specific explanation, unique example, engineering boundary, and mastery check.

10 min read • Intermediate

proc is a focused Nim topic inside Procedures. This lesson explains the construct itself, the state or value it operates on, and the observable result it produces.

Read the example as a small executable experiment. Identify the exact syntax that belongs to proc, then change one input and predict the result before running it.

Topic-specific example

nim-03-01-proc.nim
nim Try It Live 
proc double(x:int):int = x*2
echo double(4)
Edge case / engineering note

proc has rules that are easy to miss when the example is copied mechanically. Check the feature-specific boundary shown by this construct: scope, mutability, evaluation order, type constraints, lifetime, error behavior, compile-time restrictions, or resource cleanup where applicable.

Content source & attribution
Original Syntaxis Content · Original Syntaxis Content

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