This one came to my attention recently. [linter.structured-data.org][1]


  [1]: http://linter.structured-data.org
I like that it generates a preview when the Google Rich Snippet tool reports &quot;Insufficient data to generate the preview.&quot; The structured-data tool also generates a more structured, almost graphical result, which makes the results a bit easier to understand.

The [**microdata-tool**](http://krofdrakula.github.com/microdata-tool/) jQuery plugin.

Included in your markup it displays the metadata it is able to extract. Thus it&#39;s ideal for using it offline or on localhost. 
Although it&#39;s work in progress, it supports many (if not all, I&#39;m not sure) of the schema.org metadata.

[Mida][1] supports the full schema.org standard and would therefore be worth taking a look at.


  [1]: http://lawrencewoodman.github.com/mida/

You can try Bings Validator now: [https://ssl.bing.com/webmaster/diagnostics/markup/validator][1]


  [1]: https://ssl.bing.com/webmaster/diagnostics/markup/validator

`X` is a 2D array. I want to have a new variable `Y` that which has the same value as the array `X`. Moreover, **any further manipulations with Y should not influence the value of the X.** 

It seems to me so natural to use `y = x`. But it does not work with arrays. If I do it this way and then changes y, the x will be changed too. I found out that the problem can be solved like that: `y = x[:]`

But it does not work with 2D array. For example:

    x = [[1,2],[3,4]]
    y = x[:]
    y[0][0]= 1000
    print x

returns `[ [1000, 2], [3, 4] ]`. It also does not help if I replace `y=x[:]` by `y = x[:][:]`.

Does anybody know what is a proper and simple way to do it?

    




How to make a copy of a 2D array in Python?

I need to make sure that a process is running before moving on with a method.

The statement is:

    Process.Start(&quot;popup.exe&quot;);

Can you do a WAIT command or set a delay on this value?

C# - Making a Process.Start wait until the process has start-up

Does anyone know of a good tool to test Schema.org ([http://schema.org/][1]) markup?

The Google Rich Snippet tool does not support it properly. Even with the correct markup given, it says &quot;Insufficient data to generate the preview.&quot;

**update:** Now the [Google Rich Snippet tool][2] supports some [schema.org][1] markups.


  [1]: http://schema.org/
  [2]: http://www.google.com/webmasters/tools/richsnippets
  [3]: http://schema.org/

Tool for testing Schema.org markup

Does anyone know of a good tool to test Schema.org (<a href="http://schema.org/" target="_blank" rel="noopener noreferrer">http://schema.org/</a>) markup?
The Google Rich Snippet tool does not support it properly. Even with the correct markup given, it says "Insufficient data to generate the preview."
update: Now the <a href="http://www.google.com/webmasters/tools/richsnippets" target="_blank" rel="noopener noreferrer">Google Rich Snippet tool</a> supports some <a href="http://schema.org/" target="_blank" rel="noopener noreferrer">schema.org</a> markups.

How to check if an element exist with web driver?

Is using a try catch really the only possible way?

    boolean present;
    try {
       driver.findElement(By.id(&quot;logoutLink&quot;));
       present = true;
    } catch (NoSuchElementException e) {
       present = false;
    }

WebDriver: check if an element exists?

This is a question which is asked frequently in different forms, and often obtains &quot;lol you&#39;re not doing it properly&quot; responses. Pretty sure that&#39;s because there&#39;s a common sense scenario people (including me) are trying to use as an implementation, and the solution is not obvious (if you&#39;ve not done it before).

Would accept an answer which &quot;lets the fly out of the bottle&quot;.

Given

    project/
        __init__.py
        /code
            __init__.py
            sut.py
        /tests
            __init__.py
            test_sut.py

Where tests_sut.py starts:

    import code.sut
    
Running nosetests in the root dir leads to:
 
    ImportError: No module named code.sut

Avenues traveled:

a) do a relative using 

    from ..code import sut

b) add root of project to PYTHONPATH

c) use the 

    sys.path.append

to add the .. path before the imports at the start of each test module.

d) just remember to do a 

    setup.py 

on the project to install the modules into the site-packages before running tests.

&lt;hr/&gt;

So the requirement is to have tests located beneath the test package root which have access to the project. Each of the above don&#39;t feel &quot;natural&quot; to me, have proved problematic or seem like too much hard work!

In java this works, but basically by dint of your build tool / IDE placing all your classes on the classpath. Perhaps the issue is I&#39;m expecting &quot;magic&quot; from Python? Have noted in the Flask webframework tests, option d) seems to be preferred.

In any case, statements below recommending a preferred solution would remove the feeling of &quot;unnaturalness&quot; in my own.

Python imports for tests using nose - what is best practice for imports of modules above current package

What is the best way to write junit tests for interfaces so they can be used for the concrete implementing classes?

e.g. You have this interface and implementing classes:

    public interface MyInterface {
        /** Return the given value. */
        public boolean myMethod(boolean retVal);
    }
    
    public class MyClass1 implements MyInterface {
        public boolean myMethod(boolean retVal) {
            return retVal;
        }
    }
    
    public class MyClass2 implements MyInterface {
        public boolean myMethod(boolean retVal) {
            return retVal;
        }
    }

How would you write a test against the interface so you can use it for the class?

Possibility 1:

    public abstract class MyInterfaceTest {
        public abstract MyInterface createInstance();
        
        @Test
        public final void testMyMethod_True() {
            MyInterface instance = createInstance();
            assertTrue(instance.myMethod(true));
        }

        @Test
        public final void testMyMethod_False() {
            MyInterface instance = createInstance();
            assertFalse(instance.myMethod(false));
        }
    }
    
    public class MyClass1Test extends MyInterfaceTest {
        public MyInterface createInstance() {
            return new MyClass1();
        }
    }
    
    public class MyClass2Test extends MyInterfaceTest {
        public MyInterface createInstance() {
            return new MyClass2();
        }
    }

Pro:

 - Need only one method to be implemented

Con:

 - Dependencies and mock objects of class under test have to be the same for all tests

Possibility 2:

    public abstract class MyInterfaceTest
        public void testMyMethod_True(MyInterface instance) {
            assertTrue(instance.myMethod(true));
        }

        public void testMyMethod_False(MyInterface instance) {
            assertFalse(instance.myMethod(false));
        }
    }
    
    public class MyClass1Test extends MyInterfaceTest {
        @Test
        public void testMyMethod_True() {
            MyClass1 instance = new MyClass1();
            super.testMyMethod_True(instance);
        }
        
        @Test
        public void testMyMethod_False() {
            MyClass1 instance = new MyClass1();
            super.testMyMethod_False(instance);
        }
    }
    
    public class MyClass2Test extends MyInterfaceTest {
        @Test
        public void testMyMethod_True() {
            MyClass1 instance = new MyClass2();
            super.testMyMethod_True(instance);
        }
        
        @Test
        public void testMyMethod_False() {
            MyClass1 instance = new MyClass2();
            super.testMyMethod_False(instance);
        }
    }

Pro:

 - fine granualtion for each test including dependencies and mock objects

Con:

 - Each implementing test class requires to write additional test methods

Which possibility would you prefer or what other way do you use?

How to write junit tests for interfaces?

I googled to find the assert methods list. But it seems like this documentation is very well hidden. Does anyone know where it is?

Where are the Assertion Methods list from Django TestCase?

I&#39;ve tried several examples found online, but with no luck.  I am looking to confirm the confirm message of a delete link.  The last attempt was the code below, but that resulted in an Capybara::NotSupportedByDriverError error.

    def confirm_dialog
      page.evaluate_script(&#39;window.confirm = function() { return true; }&#39;)
    end

How do I confirm a javascript popup with Capybara?

I fail to see what makes YAML any less of a markup language than XML. The purpose of a markup language is to define the structure of a document, and YAML does exactly that (YAML stands for **YAML ain&#39;t markup language**).

What YAML should instead stand for is, *Yet another markup language*.

If YAML ain&#39;t markup language, what is it?

I&#39;m trying to author a few paragraphs with Jade, but finding it difficult when there are links  inside a paragraph.

The best I can come up with, and I&#39;m wondering if there&#39;s a way to do it with less markup:

    p
      span.
       this is the start
       of the para.
      a(href=&quot;http://example.com&quot;) a link
      span.
        and this is the rest of
        the paragraph.

Jade: Links inside a paragraph

I have a page made up of various &quot;sections&quot; like videos, a newsfeed etc.. I am a bit confused how to represent these with HTML5. Currently I have them as HTML5 `&lt;section&gt;`s, but on further inspection it looks they the more correct tag would be `&lt;article&gt;`. Could anyone shed some light on this for me? 

None of these things are blog posts or &quot;documents&quot; in the true sense of the word so it&#39;s kind of hard to see which element to apply.

Cheers

EDIT: I have opted to use the `article` tag since it seems to be a container tag for unrelated elements which I guess my &quot;sections&quot; are. The actual tagname article however seems to be rather misleading and although they are saying HTML5 has been developed with greater consideration for web *applications*, I find a lot of the tags to be more blog-centric / document based.

Anyway thanks for your answers it appears to be fairly subjective.

Section vs Article HTML5

I am not too familiar with the lightweight markup language used by github when updating README files.

Where are the resources which I can read up on how to write the appropriate markup syntax for my open source library&#39;s README/wiki files?

And is there a tool which I can &quot;review my docs locally in my browser&quot; before pushing the updated README to my github repository?

Working with README.md on github.com

When both, href and ng-click attributes are defined:

    &lt;a href=&quot;#&quot; ng-click=&quot;logout()&quot;&gt;Sign out&lt;/a&gt;

the `href` attribute takes precedence over ng-click.

I am looking for a way to raise priority of ng-click.

`href` is required for Twitter Bootstrap, I can&#39;t remove it.

href overrides ng-click in Angular.js

I have searched for a long time across the internet and stackoverflow for an answer to this question, and I have found links that say that you should not put meta tags in the body:

 - [https://stackoverflow.com/questions/7293366/using-microdatas-meta-tag-in-html5][1]
 - [https://stackoverflow.com/questions/3126926/passing-meta-data-in-body-part][2]
 - [https://stackoverflow.com/questions/9820239/meta-tags-in-body][3]

while the schema.org website clearly shows the meta tags being nested directly in the body [http://schema.org/AggregateRating][4]

Just look at the example that is posted there


&lt;!-- language: lang-html --&gt;

     Customer reviews:
    
      &lt;div itemprop=&quot;reviews&quot; itemscope itemtype=&quot;http://schema.org/Review&quot;&gt;
        &lt;span itemprop=&quot;name&quot;&gt;Not a happy camper&lt;/span&gt; -
        by &lt;span itemprop=&quot;author&quot;&gt;Ellie&lt;/span&gt;,
        &lt;meta itemprop=&quot;datePublished&quot; content=&quot;2011-04-01&quot;&gt;April 1, 2011
        &lt;div itemprop=&quot;reviewRating&quot; itemscope itemtype=&quot;http://schema.org/Rating&quot;&gt;
          &lt;meta itemprop=&quot;worstRating&quot; content = &quot;1&quot;&gt;
          &lt;span itemprop=&quot;ratingValue&quot;&gt;1&lt;/span&gt;/
          &lt;span itemprop=&quot;bestRating&quot;&gt;5&lt;/span&gt;stars
        &lt;/div&gt;
        &lt;span itemprop=&quot;description&quot;&gt;The lamp burned out and now I have to replace
        it. &lt;/span&gt;
      &lt;/div&gt;
 

     &lt;div itemprop=&quot;reviews&quot; itemscope itemtype=&quot;http://schema.org/Review&quot;&gt;
        &lt;span itemprop=&quot;name&quot;&gt;Value purchase&lt;/span&gt; -
        by &lt;span itemprop=&quot;author&quot;&gt;Lucas&lt;/span&gt;,
        &lt;meta itemprop=&quot;datePublished&quot; content=&quot;2011-03-25&quot;&gt;March 25, 2011
        &lt;div itemprop=&quot;reviewRating&quot; itemscope itemtype=&quot;http://schema.org/Rating&quot;&gt;
          &lt;meta itemprop=&quot;worstRating&quot; content = &quot;1&quot;/&gt;
          &lt;span itemprop=&quot;ratingValue&quot;&gt;4&lt;/span&gt;/
          &lt;span itemprop=&quot;bestRating&quot;&gt;5&lt;/span&gt;stars
        &lt;/div&gt;
        &lt;span itemprop=&quot;description&quot;&gt;Great microwave for the price. It is small and
        fits in my apartment.&lt;/span&gt;
      &lt;/div&gt;

If you were to keep the meta tags in the `&lt;head&gt;`, then how would you relate these two dates to their reviews?
`&lt;meta itemprop=&quot;datePublished&quot; content=&quot;2011-04-01&quot;&gt;`
`&lt;meta itemprop=&quot;datePublished&quot; content=&quot;2011-03-25&quot;&gt;`

This is causing confusion and I would like to know how to do it properly.


  [1]: https://stackoverflow.com/questions/7293366/using-microdatas-meta-tag-in-html5
  [2]: https://stackoverflow.com/questions/3126926/passing-meta-data-in-body-part
  [3]: https://stackoverflow.com/questions/9820239/meta-tags-in-body
  [4]: http://schema.org/AggregateRating

Do you put Schema Microdata meta tags in the html body?

I have been wondering which of those formats is &quot;best&quot;? Schema.org, Microdata, and RDFa are bit of a pain to implement. They can break validation and require quite an effort to put into documents.

JSON-LD is, at last for me, a way better to implement structured data. But does it work? What level of support is there for it (at least by Google)?

Microdata, RDFa or JSON-LD Appropriate or best usage?

I am looking to use JSON-LD for schema on a website. (Schema meaning schema.org data.) I know how to write the data but my question is is there a prefered location in my code to insert this data? In other words, should the JSON-LD always be in the `head`, `body`, etc.?

Schema.org - JSON-LD - Where to Place?

I&#39;m curious about the best practice for applying JSON-LD onto a site for schema.org.

If I have a page with an `Article` and I also want to define `WebSite` on my page, I would have this:

    &lt;script type=&quot;application/ld+json&quot;&gt;
    {
        &quot;@context&quot;: &quot;http://schema.org&quot;,
        &quot;@type&quot;: &quot;WebSite&quot;,
        &quot;url&quot;: &quot;http://www.example.com/&quot;,
        &quot;potentialAction&quot;: {
          &quot;@type&quot;: &quot;SearchAction&quot;,
          &quot;target&quot;: &quot;http://www.example.com/search?&amp;q={query}&quot;,
          &quot;query-input&quot;: &quot;required&quot;
        }
    }
    &lt;/script&gt;

    &lt;!- … --&gt;

    &lt;script type=&quot;application/ld+json&quot;&gt;
    {
      &quot;@context&quot;: &quot;http://schema.org&quot;,
      &quot;@type&quot;: &quot;Article&quot;,
      &quot;author&quot;: &quot;John Doe&quot;,
      &quot;interactionCount&quot;: [
        &quot;UserTweets:1203&quot;,
        &quot;UserComments:78&quot;
      ],
      &quot;name&quot;: &quot;How to Tie a Reef Knot&quot;
    }
    &lt;/script&gt;

Is this correct or wrong? Is there any benefit or need to merge these into the same script or array of items?

Best JSON-LD practices: using multiple &lt;script&gt; elements?

I haven&#39;t found a clear and updated answer, even after googling for a few hours, so here it goes:

1. I am aware of the advantages and disadvantages of both Microdata and JSON-LD. I also know that Microdata was dropped from W3C (and consequently from the browsers&#39; API). What I&#39;m not sure about is that how it will affect any site where Microdata is used specifically for SEO purpose.

2. Does Google support JSON-LD for SERPs? What format does it recommend to use? I am looking for updated answers - not from 2011 or 2012 (if they are still applicable though, feel free to post it).

3. What is more appropriate for a dynamic site with lots of contents (think: 50000 videos, images etc): JSON-LD, Microdata or RDFa? Why?

Content Type	Original Author	Original Content on Stackoverflow
Question	Thiago Diniz	View Question on Stackoverflow
Solution 1 - Testing	Justin Nafe	View Answer on Stackoverflow
Solution 2 - Testing	arne_	View Answer on Stackoverflow
Solution 3 - Testing	Lawrence Woodman	View Answer on Stackoverflow
Solution 4 - Testing	SEO Freelancer	View Answer on Stackoverflow

Tool for testing Schema.org markup

Testing Problem Overview

Testing Solutions

Solution 1 - Testing

Solution 2 - Testing

Solution 3 - Testing

Solution 4 - Testing

C# - Making a Process.Start wait until the process has start-up

How to make a copy of a 2D array in Python?

Attributions