instance method

Kernel#Hash

[K, V] (nil | [ ] _empty) -> ::Hash[K, V]

[K, V] (::hash[K, V] hash_like) -> ::Hash[K, V]

Hash(object) → object or new_hash

static VALUE
rb_f_hash(VALUE obj, VALUE arg)
{
    return rb_Hash(arg);
}

Returns a hash converted from object.

If object is:
- A hash, returns object.
- An empty array or nil, returns an empty hash.
Otherwise, if object.to_hash returns a hash, returns that hash.
Otherwise, returns TypeError.

Examples:

Example

Hash({foo: 0, bar: 1}) # => {:foo=>0, :bar=>1}
Hash(nil)              # => {}
Hash([])               # => {}

See also #gsub #Integer #global_variables #iterator? also in 4.1 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0