1berry/nodejs
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

doc: clarify usage of util.promisify.custom

Browse Source 
PR-URL: https://github.com/nodejs/node/pull/16134
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
This commit is contained in:
Shiya Luo 2017-10-09 18:46:14 -07:00 committed by James M Snell
parent 8d3e82fd6c
commit cc258af0e4
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
doc/api/util.md
View File

@ -525,6 +525,16 @@ console.log(promisified === doSomething[util.promisify.custom]);
This can be useful for cases where the original function does not follow the This can be useful for cases where the original function does not follow the
standard format of taking an error-first callback as the last argument. standard format of taking an error-first callback as the last argument.
For example, with a function that takes in `(foo, onSuccessCallback, onErrorCallback)`:
```js
doSomething[util.promisify.custom] = function(foo) {
return new Promise(function(resolve, reject) {
doSomething(foo, resolve, reject);
});
};
```
### util.promisify.custom ### util.promisify.custom
<!-- YAML <!-- YAML
added: v8.0.0 added: v8.0.0