Question

Creates a new sequence whose values have the specified type, as determined by the typeof operator.

Signature

Sequence.ofType = function(type) { /*...*/ }

Sequence.ofType = function ofType(type) {
  return this.filter(function(e) { return typeof e === type; });
}

Name	Type(s)	Description
type	string	The type of elements to include from the underlying sequence, i.e. where typeof [element] === [type].
returns	Sequence	The new sequence, comprising elements of the specified type.

Examples

Lazy([1, 2, 'foo', 'bar']).ofType('number')  // sequence: [1, 2]
Lazy([1, 2, 'foo', 'bar']).ofType('string')  // sequence: ['foo', 'bar']
Lazy([1, 2, 'foo', 'bar']).ofType('boolean') // sequence: []