有没有办法从 Jquery Deferred/Promise 到 When-JS Promise
Is there a way to go from Jquery Deferred/Promise to When-JS Promise
我想在 jquery ajax 调用返回的承诺之外使用 When-JS 功能。有转换方案吗?
编辑 1
是的,Promises/A+ promises 就像 When promises 具有这种设计的功能,它们被构建为吸收 jQuery thenables。
为了将任何外部 thenable(如 jQuery promise)转换为 when promise,只需将其包装在 when
:
when($.get(...)).then(...
when(x)
- get a trusted promise for x
. If x
is a foreign thenable, a returns a promise that follows x
.
如何同化在the Promises/A+规范中有详细说明:
The promise resolution procedure is an abstract operation taking as input a promise and a value, which we denote as [[Resolve]](promise, x)
. If x
is a then
able, it attempts to make promise adopt the state of x
, under the assumption that x
behaves at least somewhat like a promise. Otherwise, it fulfills promise with the value x
.
我想在 jquery ajax 调用返回的承诺之外使用 When-JS 功能。有转换方案吗?
编辑 1
是的,Promises/A+ promises 就像 When promises 具有这种设计的功能,它们被构建为吸收 jQuery thenables。
为了将任何外部 thenable(如 jQuery promise)转换为 when promise,只需将其包装在 when
:
when($.get(...)).then(...
when(x)
- get a trusted promise forx
. Ifx
is a foreign thenable, a returns a promise that followsx
.
如何同化在the Promises/A+规范中有详细说明:
The promise resolution procedure is an abstract operation taking as input a promise and a value, which we denote as
[[Resolve]](promise, x)
. Ifx
is athen
able, it attempts to make promise adopt the state ofx
, under the assumption thatx
behaves at least somewhat like a promise. Otherwise, it fulfills promise with the valuex
.