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Function: toMaxBy()

toMaxBy<Value>(fn): OptionalReducer<Value>

Returns an optional reducer that finds the maximum value of the values it receives based on the fn Compare function.

Use when composing reducers. Prefer maxBy for direct use on iterables.

Type Parameters​

• Value

Parameters​

• fn: Compare<Value>

Returns​

OptionalReducer<Value>

Example​

console.log(
  pipe(
    [`sloth`, `more sloth`, `sleep`, `some sloth`],
    map(string => [string.length, string]),
    reduce(toGrouped(toMaxBy((s1, s2) => s1.localeCompare(s2)), toMap())),
  ),
)
//=> Map(2) { 5 => 'sloth', 10 => 'some sloth' }

Defined in​

statistics.d.ts:418