Andreas Wahlin wrote:
> I suppose this touches on off topic, but ... is it possible to remove
> an entry completely from a JSON hash?
>
> say I have
> {
> firstString: 'first',
> secondString: 'second'
> }
>
> and evaluate this into a json object, and I want to remove
> firstString, could I do something like
> json.remove(json.firstString);
> ?
>
You could do a regex replace on the "JSON string" before it's eval'd (so
that the property never gets added to the object);
e.g.
<script type="text/javascript">
var jsonStr = "{ firstString: 'first', secondString: 'second',
thirdString: 'third' }";
eval("var json = " + jsonStr.replace(/,?\s?secondString:\s?'.*?'/, ''));
if(typeof(json.secondString) == 'undefined')
alert('worked');
</script>
While this would result in "json" being an object with properties
"firstString" and "thirdString", it would probably be easier (and not
reliant on a potentially faulty regEx) to just delete the property from
the eval'd object via;
delete json.secondString;
~ Brice
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