Function chain

Executes Comparators in order and returns the first non-zero result.

Example

Sort objects first by age and then by name

const personComparator = chain<Person>(
  mappingComparator(numberComparator)(p => p.age),
  mappingComparator(stringComparator)(p => p.name)
);

const array: Person[] = [
  { age: 1, name: "B" },
  { age: 1, name: "A" }
];

array.sort(personComparator);
console.log(array); // [{age:1, name:"A"}, {age:1, name:"B"}]

Returns

the result of the first Comparator that is not 0, or else 0