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58 lines
1.3 KiB
58 lines
1.3 KiB
# p-try [](https://travis-ci.org/sindresorhus/p-try) |
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> Start a promise chain |
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[How is it useful?](http://cryto.net/~joepie91/blog/2016/05/11/what-is-promise-try-and-why-does-it-matter/) |
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## Install |
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``` |
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$ npm install p-try |
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``` |
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## Usage |
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```js |
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const pTry = require('p-try'); |
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(async () => { |
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try { |
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const value = await pTry(() => { |
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return synchronousFunctionThatMightThrow(); |
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}); |
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console.log(value); |
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} catch (error) { |
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console.error(error); |
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} |
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})(); |
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``` |
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## API |
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### pTry(fn, ...arguments) |
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Returns a `Promise` resolved with the value of calling `fn(...arguments)`. If the function throws an error, the returned `Promise` will be rejected with that error. |
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Support for passing arguments on to the `fn` is provided in order to be able to avoid creating unnecessary closures. You probably don't need this optimization unless you're pushing a *lot* of functions. |
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#### fn |
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The function to run to start the promise chain. |
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#### arguments |
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Arguments to pass to `fn`. |
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## Related |
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- [p-finally](https://github.com/sindresorhus/p-finally) - `Promise#finally()` ponyfill - Invoked when the promise is settled regardless of outcome |
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- [More…](https://github.com/sindresorhus/promise-fun) |
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## License |
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MIT © [Sindre Sorhus](https://sindresorhus.com)
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