Get the value of the only entry in a hash

Question

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Access the first property of an object

I have a hash h decoded from JSON, and it contains only one entry. I don't care (and I don't need to know) about the key for this entry, but just want to get its corresponding value.

What is the fastest method?

score 2 · Accepted Answer · answered Oct 29 '12 at 19:58

2

It would be much, much nicer if you knew what the key was, but if not, this should work

var value;
for (var key in h){
    value = h[key];
    break;
}

answered Oct 29 '12 at 19:58

Adam Rackis

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when you say 'nicer', you mean in terms of performance or something else? – ChrisG Oct 29 '12 at 20:03
2

In terms of code quality. In terms of performance I can't imagine it making the least difference. – Adam Rackis Oct 29 '12 at 20:03

Get the value of the only entry in a hash

1 Answers1