Is await really the right syntax?
Even with a higher precedence, await is a prefix operator and thus does not
chain well. Typical code is
array.asyncMap(f1).asyncFilter(f2).asyncReduce(f3)
await forces you to write something like:
await (await (await array.asyncMap(f1)).asyncFilter(f2)).asyncReduce(f3)
A postfix, or even better, infix, operator plays much nicer. For example,
the concurrency strawman ! proposal:
array!asyncMap(f1)!asyncFilter(f2)!asyncReduce(f3)
I've been writing lots of code like this with streamline.js:
array.asyncMap(_, f1).asyncFilter(_, f2).asyncReduce(_, f3)
A little more verbose and hackier than the ! operator but it chains well.
This makes a big difference in usability.
Bruno
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