instance method
Hash#[]
(K arg0) -> V
self[key] → object
hash.c
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VALUE
rb_hash_aref(VALUE hash, VALUE key)
{
st_data_t val;
if (hash_stlike_lookup(hash, key, &val)) {
return (VALUE)val;
}
else {
return rb_hash_default_value(hash, key);
}
}
Searches for a hash key equivalent to the given key; see Hash Key Equivalence.
If the key is found, returns its value:
Example
{foo: 0, bar: 1, baz: 2}
h[:bar] # => 1
Otherwise, returns a default value (see Hash Default).
Related: []=; see also Methods for Fetching.