Function sliceIntervals

slice an array (or string) at the provided flattened 2-tuple of interval indexes.

Example

const arr = Array(100).map((v, i) => i) // === [0, 1, 2, ..., 99]
const slices: Intervals = [0, 10, 20, 30, 90, undefined, 15, -15]
sliceIntervals(arr, slices) // === [[0, 1, 2, ..., 9], [20, 21, ..., 29], [90, ..., 99], [15, ..., 84]]
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