flatten

function flatten<T>(arr: T[][]): T[]

Flattens a nested array by one level.

const arr = [[1, 2], [3, 4], [5]];
const flattened = Utils.flatten(arr);
console.log(flattened); // [1, 2, 3, 4, 5]

Parameter	Type	Optional	Description
arr	T[]	❌	The array to flatten

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