javascript - how to pass a variable to a regex -

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i have find statement this

collsession.find({"venue.type": /.*mt.*/}).toarray(function (err, _clssession)         {             console.log(_clssession);         });

it giving answer.but need value of variable instead of harcoded value mt. how achieve ? thanks.

update tried "/."+searchterm+"./" not working.

instead of using inline syntax create regular expression, can use regexp object create 1 based on string

var searchphrase = "mt"; var regularexpression = new regexp(".*" + searchphrase + ".*"); collsession.find({"venue.type": regularexpression}) [...]

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