node.js - How to sanitize array values in mongoose schema? -

i have following schema:

var schema = new mongoose.schema({  }, {strict: "throw"});  adschema.add({    files: {     type: [string] // ^\d{1,2}:[\w-]{7,14}$/    } }); 

when new model saved mongodb database need sanitize files field values correspond ^\d{1,2}:[\w-]{7,14}$/ , drop other don't.

what base place sanitize?