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by tubthumper8 769 days ago
Some languages do this already but with a designated placeholder, like

    filter(_.price < 10)
That may not work because plain underscore is already a valid identifier but another placeholder could potentially be used and no need for the parser backtracking / function insertion (which I don't like the idea of, there may be cases where an undeclared identifier was a bug and it shouldn't be turned into a function)