Enumerator::Lazy#select

() { (Elem) -> ::boolish } -> ::Array[Elem]

() -> ::Enumerator[Elem, ::Array[Elem]]

lazy.select { |obj| block } → lazy_enumerator

static VALUE
lazy_select(VALUE obj)
{
    if (!rb_block_given_p()) {
        rb_raise(rb_eArgError, "tried to call lazy select without a block");
    }

    return lazy_add_method(obj, 0, 0, Qnil, Qnil, &lazy_select_funcs);
}

Like Enumerable#select, but chains operation to be lazy-evaluated.

See also #reject #slice_after #map #slice_before also in 4.1 · 4.0 · 3.3 · 3.2 · 3.1 · 3.0

‹ prev#reject next ›#slice_after