Method: Enumerable#select

Defined in:

enum.c

#find_all {|obj| ... } ⇒ Array #select {|obj| ... } ⇒ Array #find_all ⇒ Object #select ⇒ Object

Returns an array containing all elements of enum for which the given block returns a true value.

If no block is given, an Enumerator is returned instead.

(1..10).find_all { |i|  i % 3 == 0 }   #=> [3, 6, 9]

[1,2,3,4,5].select { |num|  num.even?  }   #=> [2, 4]

See also Enumerable#reject.

Overloads:

• #find_all {|obj| ... } ⇒ Array

  Yields:

  • (obj)

  Returns:

  • (Array)
• #select {|obj| ... } ⇒ Array

  Yields:

  • (obj)

  Returns:

  • (Array)

# File 'enum.c', line 340

static VALUE
enum_find_all(VALUE obj)
{
    VALUE ary;

    RETURN_SIZED_ENUMERATOR(obj, 0, 0, enum_size);

    ary = rb_ary_new();
    rb_block_call(obj, id_each, 0, 0, find_all_i, ary);

    return ary;
}