Object iterator

[mykael22000]

Can we get a simple loop mechanism to iterate over the properties of a javascript object?

<<for $ix in $jvar>>
  <<print $jvar[$ix]>>
<<endfor>

This would make it a lot easier and more efficient to process arrays and dictionaries.

If $jvar isn't a java script object, there should be an error message.
If $jvar is a proper array, $ix should run over just the valid numerical keys (0 to $jvar.length - 1)
Otherwise $ix run through the complete list of properties defined for the object.

[greyelf]

The format of the 'for' example you have suggested normally would have $ix equal to the current array element's 'value' not it's 'index'.

But otherwise a good idea.

[mykael22000]

It's important to get the key - think this is what you are saying. For arrays it doesn't matter so much, but for non-arrays the data in the key may be significant and not present in the data object.

[greyelf]

Plain arrays are indexed using an integer. eg $list[2]
Associative arrays use object based keys, normally strings. eg. $list['name']

If you want to loop through the keys of an Associative array I would suggest:

for $key in Object.keys($list)

[mykael22000]

OK, that would be a good way of doing it. Just have to remember to put a copy in the wiki if it gets implemented.