prototype.next source
_.prototype.next()
Gets the next value on a wrapped object following the iterator protocol.
Returns (Object)
Returns the next iterator value.
Example
var wrapped = _([1, 2]);
wrapped.next();
// => { 'done': false, 'value': 1 }
wrapped.next();
// => { 'done': false, 'value': 2 }
wrapped.next();
// => { 'done': true, 'value': undefined }