nodejs use local variable into object title

Question

I'm wondering why my variables do not recognized into my object title? I'm using query variable like this :

var query_type = req.query.type; // age (12)
var query_search = req.query.search; // name (robert)

var map = {
    query_type : query_search 
}

When I try to print the map, the output has something wrong.

console.dir(map);
{query_type : "robert"}

Why my query_type do not recognize in my object? I want to print like below :

{"age" : "robert"}

It's unclear why that output was unexpected, you want `{ [query_type]: query_search }`. — jonrsharpe, Mar 06 '19 at 08:00
or Possible duplicate of https://stackoverflow.com/questions/11508463/javascript-set-object-key-by-variable — AZ_, Mar 06 '19 at 08:02

score 0 · Answer 1 · answered Mar 06 '19 at 08:16

0

You need to use a dynamic property name with square bracket notation:

var map = {
    [query_type]: query_search
};

answered Mar 06 '19 at 08:16

Jack Bashford

1 Answers1