Module: util/allocateHats/maxByFirstDiffering
Functions
maxByFirstDiffering
▸ maxByFirstDiffering<T>(arr, fns): T | undefined
Given an array of items and a list of functions that return a number for each item, return the item that has the maximum value according to the mathematical lexicographic order. Ie, first narrows down to items that share the maximum value for the first function, then of those remaining, narrows down to those that have the maximum value for the second, etc. Whenever there is only 1 item remaining, that item is returned. If the list is empty, undefined is returned.
example maxByFirstDiffering([{a: 1, b: 1}, {a: 1, b: 2}], [({a}) => a, ({b}) =>
b]) === {a: 1, b: 2}
Type parameters
| Name |
|---|
T |
Parameters
| Name | Type | Description |
|---|---|---|
arr | T[] | The array to find the max value of |
fns | (item: T) => number[] | A list of functions that return a number for each item in the array |
Returns
T | undefined
The item in the array that has the maximum value, or undefined if array is empty or all items are removed