Ali,
Here's what I did:
$ npm install cheerio request
>
> $ npm init
> <snip>
>
> $ cat package.json
> <snip>
> "dependencies": {
> "cheerio": "^0.19.0",
> "request": "^2.54.0"
> },
> <snip>
>
> $ node .
> { [Function]
> fn:
> { constructor: [Circular],
> _originalRoot:
> { type: 'root',
> name: 'root',
> attribs: {},
> children: [Object],
> next: null,
> prev: null,
> parent: null } },
> load: [Function],
> html: [Function],
> xml: [Function],
> text: [Function],
> parseHTML: [Function],
> root: [Function],
> contains: [Function],
> _root:
> { type: 'root',
> name: 'root',
> attribs: {},
> children: [ [Object], [Object], [Object] ],
> next: null,
> prev: null,
> parent: null },
> _options:
> { withDomLvl1: true,
> normalizeWhitespace: false,
> xmlMode: false,
> decodeEntities: true } }
> { [Function]
> fn:
> { constructor: [Circular],
> _originalRoot:
> { type: 'root',
> name: 'root',
> attribs: {},
> ...
>
No error, maybe check your package versions.
Cheers,
On Sat, Mar 28, 2015 at 8:13 AM, Ali Reza <[email protected]> wrote:
> I try to crawl into website pages. here my sample code , i used
> stackoverflow just for test i dont want crawl stackoverflow.
>
> i this code i want get every link in page and push in an array after that
> go to every link and search for Node (it's just test.)
>
> here is my code :
>
> var request = require('request');
> var cheerio = require('cheerio');
>
>
> var siteUrl = "
> http://stackoverflow.com/unanswered/tagged/?page=1&tab=votes";;
> var queue = [];
> request(siteUrl, function(error, response, html){
> if(!error){
> var $ = cheerio.load(html);
>
> // Extract All links in page
>
> $('.question-summary').each(function(){
> var url =
> $(this).children().last().children().first().children().first().attr('href');
> queue.push("http://stackoverflow.com"+url);
> });
>
>
> }
> // Search For Node.js on every question.
> var i,
> item;
>
> for(i = 3; i < queue.length; i++) {
> item = queue[i];
> request(item, function(error, response, html){
> var page = cheerio.load(html);
> console.log(page);
> });
> }
>
> })
>
>
> after i run this code give this error :
>
> typeerror cannot read property 'parent' of undefined
>
> i think there something wrong with cheerio , but i dont know how fix this.
>
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M. +33 6 59 60 32 58
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