You can use a subscript to reference the object:
> var obj = {
'ア' : 'testing',
'ダ' : '2015-5-15',
'ル' : 123,
'ト' : 'Good'
};
> undefined
> obj['ア']
> "testing"
You should also not that object keys and values in JavaScript objects are separated by :
(colons) not =>
(fat commas)