How to handle hyphen/minus sign in json?

62 New Member

Hello All.
I am new to json and need to work with some json output generated by code which is outside my control. I was trying out some simple alert examples.

Noticed that the hyphen or minus sign runs into problems. While this seems JavaScript wise logical (variable names cannot have operators), I don't know how to handle them.

Here is my made up example that does not work:

Expand|Select|Wrap|Line Numbers

 
<html>

<head>

<script language="JavaScript">

var o={

  "parent-object":   {

    "child-object01":     {

      "name": "Anne"

    },

    "child-object02":     {

      "name": "John"

    },

    "child-object03":     {

      "name": "Julia"

    },

    "name": "Andrew"

  }

};
 
</script>

</head>

<body>

    <a onclick="javascript:alert(o.parent-object.child-object01.name);">Click me</a>

</body>

If I replace all hyphens with underscores, then the alert does display "Anne".

How does one handle such cases when the json input cannot be changed ?
I tried searching on bytes for an answer, but the closest match I found was for double quotes. Here is the link to it:
http://bytes.com/topic/javascript/answers/911058-json-object-escape-sequence-double-quotes-problem

May 14 '11 #1

Subscribe Reply

16587

JKing

1,206

Recognized Expert Top Contributor

Hello,

If you access the JSON object like it is an associative array you can work around this.

Expand|Select|Wrap|Line Numbers

 
<html>

<head>

<script language="JavaScript">

var o={

  "parent-object":   {

    "child-object01":     {

      "name": "Anne"

    },

    "child-object02":     {

      "name": "John"

    },

    "child-object03":     {

      "name": "Julia"

    },

    "name": "Andrew"

  }

};
 
</script>

</head>

<body>

    <a onclick="javascript:alert(o['parent-object']['child-object01']['name']);">Click me</a>

</body>

May 15 '11 #2

paragpdoke

New Member

Perfect! Many thanks JKing.
Regards,
Parag Doke

May 15 '11 #3

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