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14 lines
324 B
Plaintext
14 lines
324 B
Plaintext
total := 0.0
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loop {
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("Total: ", total, ". Type a number to change.").concat.println
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().read_line.try(
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(line) -> line.trim.parse_float.try(
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(n) -> &total = (total, n).sum
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() -> "Not a number".eprintln
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)
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// CTRL+D, so return a 1-tuple to break from the loop
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() -> (())
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)
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}
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"Goodbye.".println
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