This small function provides the functionality to flatten an array in JavaScript without the use of its built-in Array.flat function. It uses a reducer to recursively pull out all node values and push them into a flat array.
const arrayFlat = require('array-flat')
const flattenedArray = arrayFlat([[1, 2, [3]], 4])
This will result in a flattened array.
yarn test
This package is released under the the MIT License.