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src/variables/result.md

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+# Result
+
+The `result` variable is a special variable that serves as an implicit return. This is useful because in most cases, the control flow semantics of the `return` statement are unneeded. `result` is initialized with the default value for a given return type, so the the following code it starts as `0`, before being initialized to `number`
+
+``` nimrod
+proc expr(number, power: int): int =
+  result = number
+  for i in 1..power:
+    result *= number
+```
+
+A common gotcha is declaring a variable called result and expecting it to have the same semantics.
+
+``` nimrod
+proc unexpected(): int =
+  var result = 5
+  result += 5
+
+echo unexpected()  # Prints 0, not 10
+```