CODEWITHSUNDEEP
javascriptstring
Only Bolivian Here
Only Bolivian Here

Reputation: 36733

Simple JavaScript empty string check, what does (an empty string) mean and why is it failing?

Here's my code:

$("#ddlCiudad").change(function () {
    var idCity = $("#ddlCiudad").val();
    $.getJSON("/ProductCheckout/GetPriceForLocation", { cityId: idCity, productId: idProduct, type: "land" },
        function (cityData) {

            console.log("Recieved json data.");                    

            landCost = cityData.LandCost;
            $("#billingshippingcost").text(landCost);
            console.log("Assigned value of LandCost");

            airCost = cityData.AirCost;
            console.log("Assigned value of AirCost");

            console.log(landCost); //Logs: 25,00
            console.log(airCost); //Logs: "(an empty string)"

            if (landCost == "") {
                $(".land").removeClass("land").addClass("land-disabled");
            }
            else {
                $(".land-disabled").removeClass("land-disabled").addClass("land");
            }

            if (airCost = "") {
                $(".air").removeClass("air").addClass("air-disabled");
            }
            else {
                $(".air-disabled").removeClass("air-disabled").addClass("air");
            }

        }
    );
});

That if statement is not being fired, any suggestions on why it's not firing?

Maybe an empty string isn't the same as "" in Javascript.

Upvotes: 0

Views: 404

Answers (1)

Richard Dalton
Richard Dalton

Reputation: 35793

Try:

if (!airCost) {
    $(".air").removeClass("air").addClass("air-disabled");
}
else {
    $(".air-disabled").removeClass("air-disabled").addClass("air");
}

Upvotes: 1

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