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combinate ​

ts
function combinate<const T>(
    arr: readonly T[],
): readonly (readonly [T, T])[]

Returns an array with the non-repeating combination of the items.

Example ​

ts
arr.combinate([]) // []
arr.combinate([10]) // []
ts
arr.combinate([10, 20, 30, 40, 50]) /* [
    [10, 20],
    [10, 30],
    [10, 40],
    [10, 50],
    [20, 30],
    [20, 40],
    [20, 50],
    [30, 40],
    [30, 50],
    [40, 50],
] */