The FILTER_CALLBACK filter calls a user defined function to filter the value.This filter gives us full control over the data filteringThe specified functions must be in an associative array with the name "options". See example belowName: "callback" ID-number: 1024...
Finally, you can ensure that whatever value is passed as the third argument is in fact a proper function, by doing this: function mySandwich(param1, param2, callback) { console.log('Started eating my sandwich. It has: ' + param1 + ', ' + param2); if (callback && typeof(callbac...
After we save it, we can look at it by going toAll Documentsand from there by selecting it. If we look at it in greater detail, we can see that Cloudant had added a revision value (_rev). Using this revision, Cloudant will track changes of document. There is a button called{} JSO...