method

keep_if

v1_9_2_180 - Show latest stable - 0 notes - Class: Array

keep_if() public

Deletes every element of self for which block evaluates to false. See also Array#select!

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

a = %w{ a b c d e f }
a.keep_if {|v| v =~ /[aeiou]/}   #=> ["a", "e"]

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static VALUE
rb_ary_keep_if(VALUE ary)
{
    RETURN_ENUMERATOR(ary, 0, 0);
    rb_ary_select_bang(ary);
    return ary;
}