how to created array global? in nodejs

Question

do i need to keep each link in a array within "request({..})", and then display it or work on the outside of "request({..})", this would be my code but does not work, any idea?

var request = require("request");
var cheerio = require("cheerio");
var arrayLinks = [];
request({
    uri: "http://www.some-url.com",
}, function(error, response, body) {
    var $ = cheerio.load(body);
    $("a").each(function() {
    var link = $(this);
    arrayLinks.push(link.attr("href"));
    });
});
arrayLinks.forEach(function(link){console.log(link)});

Sergey Rura · Accepted Answer · 2013-05-17 05:42:20Z

2

For example:

var request = require("request");
var cheerio = require("cheerio");
var arrayLinks = [];
request({
    uri: "http://www.some-url.com",
}, function(error, response, body) {
    // Some logic.
    linkTheArray()
});

function linkTheArray() {
     arrayLinks.forEach(function(link){console.log(link)});
}

Now you can run it after the request is done. There is one other way, but it is pretty ugly. You can run a timeout function, until you get some data in the array

answered May 17, 2013 at 5:42

Sergey Rura

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1 Comment

opmeitle Over a year ago

Now I understood it, thank you for your explanation was more clear with example.

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