ios - How to translate this Objective-C Code into Swift -

i new swift , trying convert line of code objective-c swift. here's objective-c code:

first off, objective c code terms , locations this:

nsstring *term = [[nsuserdefaults standarduserdefaults] valueforkey:@"term"] ?: defaultterm; nsstring *location = [[nsuserdefaults standarduserdefaults] valueforkey:@"location"] ?: defaultlocation; 

i translated swift (which i'm not sure how account ?: defaultterm)

    var term: anyobject? = nsuserdefaults.standarduserdefaults().valueforkey("term");     var location: anyobject? = nsuserdefaults.standarduserdefaults().valueforkey("location");     var apisample:ypapisample = ypapisample(); 

and query in objective-c: [apisample querytopbusinessinfoforterm:term location:location completionhandler:^(nsdictionary *topbusinessjson, nserror *error) {

when type swift code, comes out this

apisample.querytopbusinessinfoforterm(term, location: location) { (topbusinessjson, error) -> void in         code     } 

i tried removing -> , void doesn't seem it.

does work?

// cast results come userdefaults  var term: string? = nsuserdefaults.standarduserdefaults().valueforkey("term") as? string var location: string? = nsuserdefaults.standarduserdefaults().valueforkey("location") as? string   apisample.querytopbusinessinfoforterm(term, location: location, completionhandler: { (topbusinessjson: [nsobject: anyobject]!, error: nserror!) -> void in         //code     })