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on this file was 9af201e, checked in by MBK <marija.karapandzova@…>, 12 days ago |
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Fix frontend appearance
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| 1 | # util.promisify
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| 2 | Polyfill for util.promisify in node versions < v8
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| 3 |
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| 4 | node v8.0.0 added support for a built-in `util.promisify`: https://github.com/nodejs/node/pull/12442/
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| 5 |
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| 6 | This package provides the built-in `util.promisify` in node v8.0.0 and later, and a replacement in other environments.
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| 7 |
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| 8 | ## Usage
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| 9 |
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| 10 | **Direct**
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| 11 | ```js
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| 12 | const promisify = require('util.promisify');
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| 13 | // Use `promisify` just like the built-in method on `util`
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| 14 | ```
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| 15 |
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| 16 | **Shim**
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| 17 | ```js
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| 18 | require('util.promisify/shim')();
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| 19 | // `util.promisify` is now defined
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| 20 | const util = require('util');
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| 21 | // Use `util.promisify`
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| 22 | ```
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| 23 |
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| 24 | Note: this package requires a native ES5 environment, and for `Promise` to be globally available. It will throw upon requiring it if these are not present.
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| 25 |
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| 26 | ## Promisifying modules
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| 27 |
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| 28 | If you want to promisify a whole module, like the `fs` module, you can use [`util.promisify-all`](https://www.npmjs.com/package/util.promisify-all).
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