Setting and getting global variable in JavaScript using jQuery

Question

I am trying to work out why I am getting undefined data type on printName(). So how we can update a global variable trough a function (like a Setter) function and get access the updated value via other functions if needed.

$(function () {
    var name;

    function setName() {
        name = "TestName";
    }

    function printName() {
        alert(name);
    }
    printName();
});

You don't call the setName function.

Ram
– Ram

2014-03-16 07:48:34 +00:00
Commented Mar 16, 2014 at 7:48 — Ram
– Ram, Commented Mar 16, 2014 at 7:48

T J · Accepted Answer · 2014-03-16 07:48:21Z

1

Because you haven't set the name using setName(). function. in other words you never called setName()

answered Mar 16, 2014 at 7:48

T J

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Comments

XciA · Accepted Answer · 2014-03-16 07:57:14Z

1

$(function () {
    var name;

function setName() {
    name = "TestName";
}

function printName() {
    alert(name);
}
    setName();
    printName();
});

answered Mar 16, 2014 at 7:57

XciA

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