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Merge pull request #3345 from kevinwucodes/patch-1

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add clarity to destructuring assignments with leading comma
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chriseth 2017-12-19 12:39:28 +01:00 committed by GitHub
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docs/control-structures.rst
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@ -295,6 +295,7 @@ Solidity internally allows tuple types, i.e. a list of objects of potentially di
// the rest of the values are discarded. // the rest of the values are discarded.
(data.length,) = f(); // Sets the length to 7 (data.length,) = f(); // Sets the length to 7
// The same can be done on the left side. // The same can be done on the left side.
// If the tuple begins in an empty component, the beginning values are discarded.
(,data[3]) = f(); // Sets data[3] to 2 (,data[3]) = f(); // Sets data[3] to 2
// Components can only be left out at the left-hand-side of assignments, with // Components can only be left out at the left-hand-side of assignments, with
// one exception: // one exception: