v2.1.0

• The following functions retain richer type information about their arguments:

  • ifilter()
  • filter()
  • partition()

  For example, TypeScript will now know the following:

  const items = [3, 'hi', -7, 'foo', 13];
  
  function isNum(value: unknown): value is number {
      return typeof value === 'number';
  }
  
  const numbers: number[] = filter(items, isNum); // ✅
  
  const [numbers, strings] = partition(items, isNum); // ✅
  //     ^^^^^^^  ^^^^^^^ string[]
  //     number[]

• Add new find(iterable, pred) function, which is almost the same as first(iterable, pred) but behaves slightly more intuitive in the case where no predicate function is given.

• Fix bug in chunked() with size=1