Created
September 23, 2019 10:20
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| function asyncOnce(promiseFn) { | |
| let data = null; | |
| let promise = null; | |
| return function returnOnce(...args) { | |
| if (!promise) { | |
| promise = promiseFn(...args).then((promiseReturn) => { data = promiseReturn; }) | |
| } | |
| return data; | |
| } | |
| } |
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