Comments (4)
According to the example, it does resolve promises before actually calling:
https://github.com/cujojs/when/blob/master/docs/api.md#fncall
from when.
@rkaw92 I can only see this:
A parallel to the Function.prototype.call function, that gives promise-awareness to the function given as first argument.
which means that it converts a function call into a promise. but am not sure wheather this function may return a promise itself.
from when.
Yup:
const fn = require('when/function');
function getNumberPromise() {
return Promise.resolve(123);
}
fn.call(getNumberPromise).then(function(value) {
console.log('value: %d', value);
})
It's like when.try
in this regard, apparently.
from when.
@rkaw92 Thats right when.try
is the same method and the doc say:
Calls f with the supplied arguments, returning a promise for the result. The arguments may be promises, in which case, f will be called after they have fulfilled. The returned promise will fulfill with the successful result of calling f. If any argument is a rejected promise, or if f fails by throwing or returning a rejected promise, the returned promise will also be rejected.
Seems like f
may return a promise.
from when.
Related Issues (20)
- Cannot resolve module 'vertx' HOT 9
- JSPM build (SystemJS builder) failing on [email protected] HOT 3
- Does not work in NodeJS (ReactJS Native) HOT 12
- Visual Studio debugger breakes from adding When to WebPack bundle. HOT 13
- 3.7.7 breakes the build on Windows HOT 2
- no such file or directory .... es6-shim/makePromise HOT 2
- Global rejection events completely broken in a bundled environment (eg. Webpack)
- When not working in Jasmine tests
- when.reduce UnhandledPromiseRejectionWarning HOT 4
- Misleading unhandled rejection warning when using when.settle HOT 10
- npm install ! has errors HOT 1
- Usage hello world example fails with TypeError HOT 3
- Binding context to promise chain HOT 2
- Add react-native support HOT 2
- File 404 when try to use in browser environment
- Promise.js first function never runs HOT 2
- RTE TypeError after production build HOT 4
- Current project status HOT 1
- npm install failing with 404 error code
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from when.