how to find the props in obj with variable name in javascript

Question

I am passing my string to the below function.

$scope.sort= function(query){
    console.log(query); // results "name";

    $scope.resultset.sort(function(a, b) {
    return parseFloat(b.query) - parseFloat(a.query);  //results undefined;
    });
};

where b and a are my objects in resultset Array.

How to find the props in obj with variable name?

Answer 1

I suppose you mean accessing an object property with a dynamic name.

In javascript, you can access any object propert with an array-like notation:

b.query

is equivalent to :

b["query"]

So you could do :

var property = "query";
var value = b[property];