Develop Reference

How to solve error while parsing HTML

I´m trying to get the elements from a web page in Google spreadsheet using:
function pegarAsCoisas() {
var html = UrlFetchApp.fetch("http://www.saosilvestre.com.br").getContentText();
var elements = XmlService.parse(html);
}
However I keep geting the error:
Error on line 2: Attribute name "itemscope" associated with an element type "html" must be followed by the ' = ' character. (line 4, file "")
How do I solve this? I want to get the H1 text from this site, but for other sites I´ll have to select other elements.
I know the method XmlService.parse(html) works for other sites, like Wikipedia. As you can see here.

The html isn't xml. And you don't need to try to parse it. You need to use string methods:
function pegarAsCoisas() {
var urlFetchReturn = UrlFetchApp.fetch("http://www.saosilvestre.com.br");
var html = urlFetchReturn.getContentText();
Logger.log('html.length: ' + html.length);
var index_OfH1 = html.indexOf('<h1');
var endingH1 = html.indexOf('</h1>');
Logger.log('index_OfH1: ' + index_OfH1);
Logger.log('endingH1: ' + endingH1);
var h1Content = html.slice(index_OfH1, endingH1);
var h1Content = h1Content.slice(h1Content.indexOf(">")+1);
Logger.log('h1Content: ' + h1Content);
};

The XMLService service works only with 100% correct XML content. It's not error tolerant. Google apps script used to have a tolerant service called XML service but it was deprecated. However, it still works and you can use that instead as explained here: GAS-XML

Technically HTML and XHTML are not the same. See What are the main differences between XHTML and HTML?
Regarding the OP code, the following works just fine
function pegarAsCoisas() {
var html = UrlFetchApp
.fetch('http://www.saosilvestre.com.br')
.getContentText();
Logger.log(html);
}
As was said on previous answers, other methods should be used instead of using the XmlService directly on the object returned by UrlFetchApp. You could try first to convert the web page source code from HTML to XHTML in order to be able to use the Xml Service Service (XmlService), use the Xml Service as it could work directly with HTML pages, or to handle the web page source code directly as a text file.
Related questions:
How to parse an HTML string in Google Apps Script without using XmlService?
What is the best way to parse html in google apps script

Try replace itemscope by itemscope = '':
function pegarAsCoisas() {
var html = UrlFetchApp.fetch("http://www.saosilvestre.com.br").getContentText();
html = replace("itemscope", "itemscope = ''");
var elements = XmlService.parse(html);
}
For more information, look here.

Error 0: No Error while using JavaScript for Automation in Evernote

I'm creating a Script for turning Evernote Notes into Omnifocus-Items, using Javascript for Automation. Currently, the script searches for items with a certain tag, which works great. Now, I want to unassign this tag or assign a different tag to ensure no Note gets added twice.
Looking into the Evernote Javascript for Automation Function Library in the Script Editor, I found the methods assign / unassign, which should do what I want - but I'm unable to use them.
This is a shortened version of my code:
Evernote = Application('Evernote');
var notes = Evernote.findNotes("tag:omni");
for(i = 0, len = notes.length; i < len; i++){
var note = notes[i];
// Add Tag inOmni
var tag = Evernote.Tag({name:'inOmni'});
Evernote.assign(tag, {to: note});
}
This gives me the ultra-useful error message Error 0: No error. I tried var tag = Evernote.Tag({name:'inOmni'}).make(); (using make()), which results in the script editor reminding me the tag "inOmni" already exists.
It seems like I need to get the actual Tag-Object for 'inOmni', but how can I do this?
Also, is there any documentation or sample code for Evernote JavaScript Automation?
I already asked this on Ask Different, but it didn't get any answers.

I know this topic is kinda stale… but still here's the code for creating an evernote.tag instance:
new_tag ​​= Application('Evernote').make({
new:'tag',
withProperties:{name: 'new tag name'}
})
All credit goes to E_Mattsan who wrote this blog post:
https://blog.emattsan.org/entry/20150926/1443270834

node_xslt documentation or examples not available

Hello,
I am new to xml, xsl, but I want to use node_xslt to Transform XML documents.
I have seen the nodejs page for this https://www.npmjs.com/package/node_xslt and https://developer.mozilla.org/en-US/docs/XSLT/PI_Parameters, but it does not contains any example, so can someone provide me some link or examples through which I can understand about this..

Thank you very much , I have got answer of my question,
The Link http://www.tutorialspoint.com/xslt/xslt_syntax.htm is very useful,
I have require to do just the following
var xslt = require('node_xslt');
var document = xslt.readXmlFile('path of xml file');
var stylesheet = xslt.readXsltFile('path of xslt file');
var transformedString = xslt.transform(stylesheet, document, []);
This will give us the HTML by using xml and xslt, can be check by print this..
console.log("transformedString>>>>" + transformedString);

How to get hyperlink ids in another html file

am doing a project it requires a web site.on this site i have to darw state diagram for hyperlinks.that is how the hyperlinks are attached to one another on a site.am using html.how to get hyperlink id in another html file.i know about document.getElementById.
Thanks inadvance

That would require a way to access another HTML file through AJAX, which is not possible if it isn't on your domain or if CORS isn't enabled.
There's however quite a few things you could do:
Use your own server-side as proxy for fetching the HTML file.
Do the processing on the server-side and let JavaScript plot the data.
Do everything on the server-side.
If you'd like to get the ID's of a link you should use a HTML parser. Modern browsers include a such, it's called DOMParser. You'd do something like this:
var parser = new DOMParser();
var doc = parser.parseFromString(yourHTMLSource, 'text/html');
var links = doc.getElementsByTagName('a');
for(var i = 0, length = links.length; i < length; i++) {
links[i].getAttribute('id'); // -> Returns the ID of the link, if any
}
As I remember it, IE doesn't support this, but has it's own module for HTML parsing with some different methods, but still relatively easy to use.

getting pictures into an array in javascript

im kinda new to javascript i mean i know the syntax but not so much the libraries.
i need some help to get some files (pictures) from a folder into an arry lets say:
var[] pictures = ?;
(the folder is in my project and contain some pictures)
so i can loop over them and diplay them on the page i did some search but i didnt find any guide on how to do this.
i realy want to understand on how to do this for future projects even a link to known guid you guys know we will be a big help.
if it help im using asp.net.

Well, there are a lot of ways to approach the problem, to me what you can do is (if you don't know the location of the images beforehand) make a service that returns the src of every image, store that in an array, and then show them in the page.
I believe you are using jQuery so you can make an ajax request like this:
jQuery.ajax({
url: /*path to*/"Service.asmx/getSources"
//options, check documentation
});
then, from asp, make a new service (Service.asmx in my case) and create a method that returns the location of the pictures (in my case the method is called getSources)
I recommend you use JSON (and jQuery.getJSON() method) so you can return a List<string>.
Lastly you can iterate or store the sources in an array, I'll put an example with the getJSON method
var sources = []
jQuery.getJSON("Service.asmx/getSources", function(data) {
for(var i = 0, len = data.length; i<len ; i++) {
sources.push(data[i]);//store every source in the array
}
});
once you have the sources you can display them like this fiddle
Tell me if it helped or if you need another solution.

If you want an array of pictures just to display them later, you can simply use:
var sources = [
"path/to/yourImage1.jpg",
"path/to/yourImage2.jpg",
// ...
"path/to/yourImageN.jpg",
];
var pics = [];
for(var i = 0; i < sources.length; i++) {
var pic = new Image();
pic.src = sources[i];
pics[i] = pic;
}