Node.js access the value of variable from another function

Question

How do i get the value of myObject.myname, myObject.myage from the function getval? It returns undefined when i console.log it. Btw I'm using node js. Thanks.

    var post = http.request(options, function(res) {
        res.setEncoding('utf8');
        res.on('data', function (data) {
        console.log('Response: ' + data);

    var myObject = JSON.parse(data);

        console.log('----------------------------------------------');
        console.log(myObject.myname);
        console.log(myObject.myage);
        console.log('----------------------------------------------');
        });
    });

    function getVal() {
        //some code here
        console.log(myObject.myname);
        console.log(myObject.myage);
    }

Quentin · Accepted Answer · 2014-02-05 09:12:26Z

2

Declare myObject outside the anonymous function you pass to request (var myObject) instead of inside it. At present it is a local variable.
Call getVal() after the HTTP response has been received (otherwise it won't have been set yet). At present you aren't calling it at all.

answered Feb 5, 2014 at 9:12

Quentin

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Comments

Emilio Rodriguez · Accepted Answer · 2014-02-05 09:11:26Z

0

There is a scope issue, can you try this instead?

var myObject = {};
var post = http.request(options, function(res) {
    res.setEncoding('utf8');
    res.on('data', function (data) {
    console.log('Response: ' + data);

    myObject = JSON.parse(data);

    console.log('----------------------------------------------');
    console.log(myObject.myname);
    console.log(myObject.myage);
    console.log('----------------------------------------------');
    });
});

function getVal() {
    //some code here
    console.log(myObject.myname);
    console.log(myObject.myage);
}

answered Feb 5, 2014 at 9:11

Emilio Rodriguez

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2 Comments

Joenel de Asis Over a year ago

By the way myObject contains myname, myage, and etc.

Emilio Rodriguez Over a year ago

That should be no problem provided the object is declared in a scope which is accessible by getVal

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