[ruslan_mart]

var prices = [ 
        {name: 'Bed', price: 900},
        {name: 'Table', price: 400}    
], _prices = {};

prices.forEach(function(el) {
   _prices[el.name] = el;
});

prices = _prices;

alert( prices.Table.price );

var prices = {
   bed: 900,
   table: 200
};

alert(prices.table);