Type Alias Comparator<T>

Function that determines the order of two values.

A comparator returns one of the following:

• A negative number if a is less than b
• A positive number if a is greater than b
• Zero if the two arguments are equal

Typical usages for a comparator include:

• Sorting a list with Array.prototype.sort or Array.prototype.toSorted
• Finding the smallest or largest value using minWith or maxWith

There are some comparator functions built-in with JavaScript. For example:

• Intl.Collator.prototype.compare
• String.prototype.localeCompare