CODEWITHSUNDEEP
node.jssocket.io
NorrPL
NorrPL

Reputation: 79

Node.js and socket.on data

i have problem with data and socket.io in node.js. It's possible to get data outside socket.on function? Example:

var newdata=new Array();
$(document).ready(function(){


socket.on('Select', function(data){


    //console.log(data.products[0][1]);
    for(i=0; i<data.products[0].length; i++)
    {
        newdata.push(data.products[0][i]);

    }
       console.log(newdata); //array with objects
});


console.log(newdata); //undefined - here i want to get data

Upvotes: 1

Views: 921

Answers (1)

simdrouin
simdrouin

Reputation: 1018

You have to use a callback function in this case, because socket.on is being called asynchronously.

For example, declare a function like this:

function processData(newdata) {
  console.log(newdata);
}

Then inside your socket.on('Select', function (data) { ... }); you can call processData(newdata), like below:

function processData(newdata) {
  console.log(newdata);
}

$(document).ready(function(){


    socket.on('Select', function(data){

        for(i=0; i<data.products[0].length; i++)
        {
            newdata.push(data.products[0][i]);
        }

        processData(newdata);
    });
});

Upvotes: 2

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