method

any?

v1_9_3_392 - Show latest stable - Class: Enumerable

any?()

public

Passes each element of the collection to the given block. The method returns true if the block ever returns a value other than false or nil. If the block is not given, Ruby adds an implicit block of {|obj| obj} (that is any? will return true if at least one of the collection members is not false or nil.

%w{ant bear cat}.any? {|word| word.length >= 3}   #=> true
%w{ant bear cat}.any? {|word| word.length >= 4}   #=> true
[ nil, true, 99 ].any?                            #=> true

static VALUE
enum_any(VALUE obj)
{
    VALUE result = Qfalse;

    rb_block_call(obj, id_each, 0, 0, ENUMFUNC(any), (VALUE)&result);
    return result;
}

1Note

Using any? on Empty Arrays and Hashes

Alex · Aug 15, 20083 thanks

When applied to an empty array or hash, with or without a block, any? always returns false. That’s because with an empty collection, there are no values to process and return a true value.

any?

1Note

Using any? on Empty Arrays and Hashes

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