example
| // import it! | |
| const { promisify } = require("util") | |
| // turn your ordinary func into a promise func! | |
| const doublePromise = promisify(double) | |
| // use it! | |
| doublePromise(14).then(res => { | |
| console.log(res) | |
| }).catch(err => console.log(err)) |
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