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schangxiang@126.com
2025-09-19 18966e02fb573c7e2bb0c6426ed792b38b910940
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# p-defer [![Build Status](https://travis-ci.org/sindresorhus/p-defer.svg?branch=master)](https://travis-ci.org/sindresorhus/p-defer)
 
> Create a deferred promise
 
[**Don't use this unless you know what you're doing!**](https://github.com/petkaantonov/bluebird/wiki/Promise-anti-patterns#the-deferred-anti-pattern) Prefer the `Promise` constructor.
 
 
## Install
 
```
$ npm install --save p-defer
```
 
 
## Usage
 
```js
const pDefer = require('p-defer');
 
function delay(ms) {
    const deferred = pDefer();
    setTimeout(deferred.resolve, ms, '🦄');
    return deferred.promise;
}
 
delay(100).then(console.log);
//=> '🦄'
```
 
*The above is just an example. Use [`delay`](https://github.com/sindresorhus/delay) if you need to delay a promise.*
 
 
## API
 
### pDefer()
 
Returns an `Object` with a `promise` property and functions to `resolve()` and `reject()`.
 
 
## Related
 
- [More…](https://github.com/sindresorhus/promise-fun)
 
 
## License
 
MIT © [Sindre Sorhus](https://sindresorhus.com)