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by mattbierner
2985 days ago
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From a language design perspective, fat arrows make parsing unnecessarily complicated because you cannot distinguish "(a, b, c)" from "(a, b, c) => ..." without looking ahead or backtracking. Certainly not difficult to solve, but this choice makes extending arrow syntax more difficult and the fact that a production called `CoverParenthesizedExpressionAndArrowParameterList` exists in the language grammar is a pretty ugly IMO |
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