Using non-ASCII character as JavaScript object key [duplicate]

Question

I have the following object:

var obj = {
  'ア' : 'testing',
  'ダ' : '2015-5-15',
  'ル' : 123,
  'ト' : 'Good'
};

How do I access the values by its non-ASCII key (it's a Japanese character in this case)?

Can't use obj.ア or obj.'ア' for sure, which will give JavaScript parse error.

Is this JavaScript? That is not a proper JavaScript object: it's using => instead of : — jasonscript
– jasonscript, Commented Jun 19, 2015 at 3:03
You can only use dot notation if the property name is a valid variable name. — Felix Kling
– Felix Kling, Commented Jun 19, 2015 at 3:18

Hunter McMillen · Accepted Answer · 2015-06-19 03:03:58Z

8

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)

answered Jun 19, 2015 at 3:03

Hunter McMillen

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Comments

Cymen · Accepted Answer · 2019-04-09 13:46:33Z

5

You can use property accessors:

obj['ト']

Example:

var obj = {
  'ア': 'testing',
  'ダ': '2015-5-15',
  'ル': 123,
  'ト': 'Good'
};

console.log(obj['ト']);
> Good

MDN: Property Accessors

edited Apr 9, 2019 at 13:46

answered Jun 19, 2015 at 3:03

Cymen

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Comments

The KNVB · Accepted Answer · 2015-06-19 03:14:47Z

-2

How about this one:

    <!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
</head>
<body>
    <script language=javascript>
        var obj = {
'ア':'testing',
'ダ':'2015-5-15',
'ル':123,
'ト':'Good'
};
alert(obj.ア);
</script>
</body>
</html>

edited Jun 19, 2015 at 3:14

answered Jun 19, 2015 at 3:07

The KNVB

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2 Comments

Raptor Over a year ago

thanks, but this results in parse error in Casper JS.

Raptor Over a year ago

language attribute is deprecated for years. And CasperJS syntax is slightly different than normal JS.

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