scraperwiki.save_var equivalent in scraperwiki.js

[zarino]

See Paul's suggestion in sensiblecodeio/scraperwiki-python#35 for rationale.

The interface should be the same in both Python and JavaScript.

The JavaScript version would look something like:

// saves latest_id and 14 into SQLite DB
scraperwiki.var["latest_id"] = 14

// logs "14"
console.log(scraperwiki.var["latest_id"])

[zarino]

It looks like traditional JavaScript doesn't let you define 'catch-all' setters, making it somewhat difficult to fire off events (like saving to a database) when items are added to your dictionary-like object: http://stackoverflow.com/questions/7891937/is-it-possible-to-implement-dynamic-getters-setters-in-javascript

We could probably use object.defineProperty() if we were happy for scraperwiki.js to drop IE8 support. But we're not.

[drj11]

Not a high enough priority.