This question is probably better asked in the mongodb user group.
Coming to the question you could use this option for a workaround
var arr = [/^John/,/^Rahel/, /^George/]
collection.find({name::{$in:arr}})
On Thu, Feb 27, 2014 at 3:29 PM, Shruti Patankar
<[email protected]>wrote:
> Hi,
>
> I need to traverse an array, and compare value of the array with the
> values in mongodb. However, I want to match a pattern starting with array
> value and not the exact value. For example: arr[0] is "John", I want to
> find all values in mongodb users table whose name start with "John". For
> this, I can write a query as "collection.find({name*:/^John/*})".
> However, if I want to do this query in a loop for all the elements of array
> "arr", how can that be achieved?
>
>
> var arr=[];
> arr=["John","Rahel","George"];
>
> MongoClient.connect('mongodb://127.0.0.1:27017/MyDatabase', function(err,
> db){
> var collection = db.collection('users'); // Assume that numbers is a table
> in mongodb
> for(var i=0;i<arr.length;i++)
> {
>
>
> collection.find({name*:/^arg[i]/*}).toArray(function(err, result)
> {
> //do something
> }
>
> }
> }
>
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