Method: Array#select!

Defined in:

array.c

#select! {|element| ... } ⇒ self^? #select! ⇒ Object #filter! {|element| ... } ⇒ self^? #filter! ⇒ Object

With a block given, calls the block with each element of self; removes from self those elements for which the block returns false or nil.

Returns self if any elements were removed:

a = [:foo, 'bar', 2, :bam]
a.select! {|element| element.to_s.start_with?('b') } # => ["bar", :bam]

Returns nil if no elements were removed.

With no block given, returns a new Enumerator.

Related: see Methods for Deleting.

Overloads:

• #select! {|element| ... } ⇒ self^?

  Yields:

  • (element)

  Returns:

  • (self, nil)
• #filter! {|element| ... } ⇒ self^?

  Yields:

  • (element)

  Returns:

  • (self, nil)

# File 'array.c', line 3960

static VALUE
rb_ary_select_bang(VALUE ary)
{
    struct select_bang_arg args;

    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
    rb_ary_modify(ary);

    args.ary = ary;
    args.len[0] = args.len[1] = 0;
    return rb_ensure(select_bang_i, (VALUE)&args, select_bang_ensure, (VALUE)&args);
}