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omarkdev/es2019_array_flat_specify_deep.js

Created February 20, 2020 20:16
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es2019_array_flat_specify_deep.js
const arr1 = ['a', ['b', ['c']], 1, [2, [3, [4, [5]]]]];
const arr1Flatted1 = arr1.flat();
// ["a", "b", Array(1), 1, 2, Array(2)]
const arr1Flatted2 = arr1.flat(2);
// ["a", "b", "c", 1, 2, 3, Array(2)]
const arr1FlattedInfinity = arr1.flat(Infinity);
// ["a", "b", "c", 1, 2, 3, 4, 5]
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