Wouldn't it be more useful to have an async `delay(milliseconds)` function, which simply takes a number (as an alternative to setTimeout), instead of having to pass in a function whose code is executed and then the code after it??? I have suggested that here before, but it happens to be a browser spec feature thing, not a core language thing (at least not yet) - since setTimeout itself is not yet in the core language, as far as I know
On Thu, 16 Nov 2017 at 16:50 Eugene Melnikov < [email protected]> wrote: > It’d be great to see native implementation of `waitFor` function. This > function is used a lot in test frameworks and sometimes it’s necessary to > wait something via polling. The syntax should be `await > waitFor(function/primitives, timeout)`. Once function in first argument > return anything except `false`, `null` or `undefined` next line of code > will be executed. Second argument means period of time in ms to run > function from first argument. Returned value of `waitFor` will be forwarded > from executed function. In case first argument if primitive the first > argument will be returned after delay specified in second argument. So it > will be easy to make simple delay `async waitFor(true, 1000)` instead of > `await new Promise(r => setTimeout(r, 1000))`. > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss >
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