How to Break Out of an `input.Scan()` Loop in Go?

Escaping the Input.Scan() Conundrum

In the realm of Go programming, the input.Scan() function stands tall as a facilitator for input retrieval from the console. However, when it comes to breaking out of the input loop, a dilemma arises for developers. The absence of an "end" keyword warrants a closer examination of the code and documentation.

According to the documentation, input.Scan() perpetuates its search for input until it encounters the end of the input or an error. The notion of an empty line terminating the scan puzzles developers, leading to questions about the necessity of an "if" clause to jump out of the loop.

To unravel this enigma, let us delve into the intricacies of the default scanner function: ScanLines. This function tenders each line of text it encounters, omitting any trailing end-of-line markers. An empty line is not cause for alarm as the scanner placidly returns it.

Furthermore, the scanner holds a secret weapon: fetching the last non-empty line of input, even if it lacks a newline. This adeptness ensures that text extending beyond the terminal's width does not evade the scanner's grasp. However, an empty line does not signal the end of the stream.

To achieve the coveted exit strategy, users must employ an alternative method. Typing Ctrl-D, a universal symbol for an end-of-file scenario, severs the connection and brings the scanner's journey to a graceful end.

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