find with string functions

[andineck]

I started using mingo. It's been really great so far.
What I am missing (or don't understand to do) is, finding documents with string functions like: contains, startsWith, endsWith.

How do I do this more elegant (contains):

var result = Query.find(npm.rows, {$where: 'this.id.indexOf("express") !== -1'}).all();
// or
var result = Query.find(npm.rows, {id: /mocha/g}).all();

[kofrasa]

I believe the regular expression variant is clearer and more elegant.

[andineck]

is there also an elegant way without RegExp?
I have to serialize the query object and reqular expressions are cumbersome for this use case.
Is there a way to mixin functions like: contains, startsWith, endsWith.

[kofrasa]

I decided to exclude special operators not found in the original MongoDB implementation. However, there is room for a feature that would allow registering custom operators. I did not think it would be necessary. With such a feature, that would mean loading up your custom operators into Mingo before running your serialized query.

[andineck]

makes sense, thx for the explanation.

[kofrasa]

Although this may long be overdue, I would like to say that Custom Operators are available now.