deno.land / x / rambda@v9.1.1 / source / filterAsync.js

filterAsync.js
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import { isArray } from './_internals/isArray.js'import { filter } from './filter.js'import { mapAsync } from './mapAsync.js'
export function filterAsyncFn(predicate, listOrObject){ return new Promise((resolve, reject) => { mapAsync(predicate, listOrObject) .then(predicateResult => { if (isArray(predicateResult)){ const filtered = listOrObject.filter((_, i) => predicateResult[ i ])
return resolve(filtered) } const filtered = filter((_, prop) => predicateResult[ prop ], listOrObject)
return resolve(filtered) }) .catch(reject) })}
export function filterAsync(predicate, listOrObject){ if (arguments.length === 1){ return async _listOrObject => filterAsyncFn(predicate, _listOrObject) }
return new Promise((resolve, reject) => { filterAsyncFn(predicate, listOrObject).then(resolve) .catch(reject) })}
rambda

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Tagged at
2 months ago