JSFiddle - React, Tailwind, and code Playground

JavaScript

function HasStores(state) {
    var statehasstores = false;

    $(stores).each(function (index, store){
        if(state == store.state && store.category == "meyers"){
            statehasstores = true;
            return false; //break
        }
    });

    return statehasstores;
}

var stores = [{state:"A", category:"meyers"},
              {state:"B", category:"meyers"},
              {state:"C", category:"nocat"}
             ];

alert("A: " + HasStores("A") + "\n" +
      "B: " + HasStores("B") + "\n" +
      "C: " + HasStores("C"));