Dynamic deep selection for a JavaScript object

Question

With a single property this is fairly easy:

var jsonobj = {
    \"test\": \"ok\"
}
var propname = \"test\";
// Will alert \"ok\"
alert(jsonobj[propname]);
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Answer 1

You can write a little function to split the string and then access each piece in turn. For example:

function getProperty(propname, object)
{
    var props = propname.split('.');
    var obj = object;
    for (var i=0; i

Obviously it nees a little extra coding to check for null objects, valid properties, etc.