You see the two empty -D entries in the g++ command line? They're causing the problem. You must have values in the -D items e.g. -DWIN32

if you're insistent on using something like -D$(SYSTEM) -D$(ENVIRONMENT) then you can use something like:

SYSTEM ?= generic
ENVIRONMENT ?= generic

in the makefile which gives them default values.

Your output looks to be missing the all important output:

<command-line>:0:1: error: macro names must be identifiers
<command-line>:0:1: error: macro names must be identifiers

just to clarify, what actually got sent to g++ was -D -DWindows_NT, i.e. define a preprocessor macro called -DWindows_NT; which is of course not a valid identifier (similarly for -D -I.)

Somewhere in your code there is a line #include <string>. This by itself tells you that the program is written in C++. So using g++ is better than gcc.

For the missing library: you should look around in the file system if you can find a file called libl.so. Use the locate command, try /usr/lib, /usr/local/lib, /opt/flex/lib, or use the brute-force find / | grep /libl.

Once you have found the file, you have to add the directory to the compiler command line, for example:

g++ -o scan lex.yy.c -L/opt/flex/lib -ll

You are specifying the -i option:

-i, --include

(HTTP) Include the HTTP-header in the output. The HTTP-header includes things like server-name, date of the document, HTTP-version and more...

Simply remove that option from your command line:

response=$(curl -sb -H "Accept: application/json" "http://host:8080/some/resource")

If you DELETE the branch after merging it, just be aware that all hyperlinks, URLs, and references of your DELETED branch will be BROKEN.

Based on the answer by Korakot Chaovavanich, I created the function below to download all files needed within a Colab instance.

from google.colab import files
def getLocalFiles():
    _files = files.upload()
    if len(_files) >0:
       for k,v in _files.items():
         open(k,'wb').write(v)
getLocalFiles()

You can then use the usual 'import' statement to import your local files in Colab. I hope this helps

Don't use more commands than necessary, leave away tail, grep and cut. You can do this with only (a simple) awk

PS: giving a block-size en print only de persentage is a bit silly ;-) So leave also away the "-B MB"

df . |awk -F'[multiple field seperators]' '$NF=="Last field must be exactly --> mounted patition" {print $(NF-number from last field)}'

in your case, use:

df . |awk -F'[ %]' '$NF=="/" {print $(NF-2)}'

output: 81

If you want to show the percent symbol, you can leave the -F'[ %]' away and your print field will move 1 field further back

df . |awk '$NF=="/" {print $(NF-1)}'

output: 81%

Arrange them in the order you wants to show. Suppose, you wanna show view 1 on top of view 2. Then write view 2 code then write view 1 code. If you cant does this ordering, then call bringToFront() to the root view of the layout you wants to bring in front.

Android Studio automatically creates a Gradle wrapper in the root of your project, which is how it invokes Gradle. The wrapper is basically a script that calls through to the actual Gradle binary and allows you to keep Gradle up to date, which makes using version control easier. To run a Gradle command, you can simply use the gradlew script found in the root of your project (or gradlew.bat on Windows) followed by the name of the task you want to run. For instance, to build a debug version of your Android application, you can run ./gradlew assembleDebug from the root of your repository. In a default project setup, the resulting apk can then be found in app/build/outputs/apk/app-debug.apk. On a *nix machine, you can also just run find . -name '*.apk' to find it, if it's not there.

Adding to the above. You use the Dispatch timer if you want the tick events marshalled back to the UI thread. Otherwise I would use System.Timers.Timer.

Using just simple loops:

public static void compareSortOrder (List<String> sortOrder, List<String> listToCompare){
        int currentSortingLevel = 0;
        for (int i=0; i<listToCompare.size(); i++){
            System.out.println("Item from list: " + listToCompare.get(i));
            System.out.println("Sorting level: " + sortOrder.get(currentSortingLevel));
            if (listToCompare.get(i).equals(sortOrder.get(currentSortingLevel))){

            } else {
                try{
                    while (!listToCompare.get(i).equals(sortOrder.get(currentSortingLevel)))
                        currentSortingLevel++;
                    System.out.println("Changing sorting level to next value: " + sortOrder.get(currentSortingLevel));
                } catch (ArrayIndexOutOfBoundsException e){

                }

            }
        }
    }

And sort order in List

public static List<String> ALARMS_LIST = Arrays.asList(
            "CRITICAL",
            "MAJOR",
            "MINOR",
            "WARNING",
            "GOOD",
            "N/A");

You could make it absolute and put zeros to top and bottom that is:

#fullHeightDiv {
    position: absolute;
    top: 0;
    bottom: 0;
}

The ! at the end of an object says the object is an optional and to unwrap if it can otherwise returns a nil. This is often used to trap errors that would otherwise crash the program.

Use FileUtils from Apache commons.

listFiles

public static Collection<File> listFiles(File directory,
                                         String[] extensions,
                                         boolean recursive)
Finds files within a given directory (and optionally its subdirectories) which match an array of extensions.
Parameters:
directory - the directory to search in
extensions - an array of extensions, ex. {"java","xml"}. If this parameter is null, all files are returned.
recursive - if true all subdirectories are searched as well
Returns:
an collection of java.io.File with the matching files

filter_by is used for simple queries on the column names using regular kwargs, like

db.users.filter_by(name='Joe')

The same can be accomplished with filter, not using kwargs, but instead using the '==' equality operator, which has been overloaded on the db.users.name object:

db.users.filter(db.users.name=='Joe')

You can also write more powerful queries using filter, such as expressions like:

db.users.filter(or_(db.users.name=='Ryan', db.users.country=='England'))

To help other bug-hunters. I had this error because the function didn't exist.

I had a spelling error.

Here is a single-liner of how you can delete ALL browser network cache using Cache.delete()

caches.keys().then((keyList) => Promise.all(keyList.map((key) => caches.delete(key))))

Works on Chrome 40+, Firefox 39+, Opera 27+ and Edge.

Add these two lines near the top of your batch file, all stdout and stderr after will be redirected to log.txt:

if not "%1"=="STDOUT_TO_FILE"  %0 STDOUT_TO_FILE %*  >log.txt 2>&1
shift /1

In HTML:

<a href="index.php?link=home" name="home">home</a>

Then in PHP:

if(isset($_GET['link'])){$_SESSION['link'] = $_GET['link'];}

Adapting @LainIwakura's answer for modern CMake syntax with imported targets, this would be:

set(Boost_USE_STATIC_LIBS OFF) 
set(Boost_USE_MULTITHREADED ON)  
set(Boost_USE_STATIC_RUNTIME OFF) 
find_package(Boost 1.45.0 COMPONENTS filesystem regex) 

if(Boost_FOUND)
    add_executable(progname file1.cxx file2.cxx) 
    target_link_libraries(progname Boost::filesystem Boost::regex)
endif()

Note that it is not necessary anymore to specify the include directories manually, since it is already taken care of through the imported targets Boost::filesystem and Boost::regex.
regex and filesystem can be replaced by any boost libraries you need.

I couldn't get the compiler (x64 version) to use the sysroot until I added SET(CMAKE_SYSROOT $ENV{HOME}/raspberrypi/rootfs) to pi.cmake.

change the default node version with nvm alias default 10.15.3 *

(replace mine version with your default version number)

you can check your default lists with nvm list

"Once upon a time there were three little pigs".Split(" ") | ForEach {
    "$_ is a token"
 }

The key is $_, which stands for the current variable in the pipeline.

About the code you found online:

% is an alias for ForEach-Object. Anything enclosed inside the brackets is run once for each object it receives. In this case, it's only running once, because you're sending it a single string.

$_.Split(" ") is taking the current variable and splitting it on spaces. The current variable will be whatever is currently being looped over by ForEach.

Where it says "Accept requests from these HTTP referrers (websites) (Optional)" you don't need to have any referrer listed. So click the X beside localhost on this page but continue to use your key.

It should then work after a few minutes.

Changes made can sometimes take a few minutes to take effect so wait a few minutes before testing again.

cURL > 7.18.0 has an option --data-urlencode which solves this problem. Using this, I can simply send a POST request as

curl -d name=john --data-urlencode passwd=@31&3*J https://www.mysite.com

using conditional expressions for conciseness for python >= 2.5

def prenext(l,v) : 
   i=l.index(v)
   return l[i-1] if i>0 else None,l[i+1] if i<len(l)-1 else None


# example
x=range(10)
prenext(x,3)
>>> (2,4)
prenext(x,0)
>>> (None,2)
prenext(x,9)
>>> (8,None)

Mutable is for marking specific attribute as modifiable from within const methods. That is its only purpose. Think carefully before using it, because your code will probably be cleaner and more readable if you change the design rather than use mutable.

http://www.highprogrammer.com/alan/rants/mutable.html

So if the above madness isn't what mutable is for, what is it for? Here's the subtle case: mutable is for the case where an object is logically constant, but in practice needs to change. These cases are few and far between, but they exist.

Examples the author gives include caching and temporary debugging variables.

Put a global variable to generate the ids.

<script>
    $(function(){
        // Variable to get ids for the checkboxes
        var idCounter=1;
        $("#btn1").click(function(){
            var val = $("#txtAdd").val();
            $("#divContainer").append ( "<label for='chk_" + idCounter + "'>" + val + "</label><input id='chk_" + idCounter + "' type='checkbox' value='" + val + "' />" );
            idCounter ++;
        });
    });
</script>
<div id='divContainer'></div>
<input type="text" id="txtAdd" /> 
<button id="btn1">Click</button>

A more "duck typing" way is to use respond_to? this way "integer-like" or "string-like" classes can also be used

if(s.respond_to?(:match) && s.match(".com")){
  puts "It's a .com"
else
  puts "It's not"
end

If you want to exclude the sub-directories, you can use

git diff <ref1>..<ref2> -- $(git diff <ref1>..<ref2> --name-only | grep -v /)

The MessageBox in the Extended WPF Toolkit is very nice. It's at Microsoft.Windows.Controls.MessageBox after referencing the toolkit DLL. Of course this was released Aug 9 2011 so it would not have been an option for you originally. It can be found at Github for everyone out there looking around.

Take a look at

http://www.anujvarma.com/svn-cleanup-failedprevious-operation-has-not-finished-run-cleanup-if-it-was-interrupted/

Summary of fix from above link (Thanks to Anuj Varma)

1. Install sqlite command-line shell (sqlite-tools-win32) from http://www.sqlite.org/download.html

2. sqlite3 .svn/wc.db "select * from work_queue"

The SELECT should show you your offending folder/file as part of the work queue. What you need to do is delete this item from the work queue.

3. sqlite3 .svn/wc.db "delete from work_queue"

That’s it. Now, you can run cleanup again – and it should work. Or you can proceed directly to the task you were doing before being prompted to run cleanup (adding a new file etc.)

You can also combine the p3p.xml and policy.xml files as such:

/home/ubuntu/sites/shared/w3c/p3p.xml

<META xmlns="http://www.w3.org/2002/01/P3Pv1">
  <POLICY-REFERENCES>
    <POLICY-REF about="#policy1">
      <INCLUDE>/</INCLUDE>
      <COOKIE-INCLUDE/>
    </POLICY-REF>
  </POLICY-REFERENCES>
  <POLICIES>
    <POLICY discuri="" name="policy1">
      <ENTITY>
        <DATA-GROUP>
          <DATA ref="#business.name"></DATA> 
          <DATA ref="#business.contact-info.online.email"></DATA> 
        </DATA-GROUP>
      </ENTITY>
      <ACCESS>
        <nonident/>
      </ACCESS>
      <!-- if the site has a dispute resolution procedure that it follows, a DISPUTES-GROUP should be included here -->
      <STATEMENT>
        <PURPOSE>
          <current/>
          <admin/>
          <develop/>
        </PURPOSE>
        <RECIPIENT>
          <ours/>
        </RECIPIENT>
        <RETENTION>
          <indefinitely/>
        </RETENTION>
        <DATA-GROUP>
          <DATA ref="#dynamic.clickstream"/>
          <DATA ref="#dynamic.http"/>
        </DATA-GROUP>
      </STATEMENT>
    </POLICY>
  </POLICIES>
</META>

I found the easiest way to add a header is proxy through Apache and use mod_headers, as such:

<VirtualHost *:80>
  ServerName mydomain.com

  DocumentRoot /home/ubuntu/sites/shared/w3c/

  ProxyRequests off
  ProxyPass /w3c/ !
  ProxyPass / http://127.0.0.1:8080/
  ProxyPassReverse / http://127.0.0.1:8080/
  ProxyPreserveHost on

  Header add p3p 'P3P:policyref="/w3c/p3p.xml", CP="NID DSP ALL COR"'
</VirtualHost>

So we proxy all requests except those to /w3c/p3p.xml to our application server.

You can test it all with the W3C validator

You can use Boost numeric_cast.

This throws an exception if the source value is out of range of the destination type, but it doesn't detect loss of precision when converting to double.

Whatever function you use, though, you should decide what you want to happen in the case where the value in the size_t is greater than INT_MAX. If you want to detect it use numeric_cast or write your own code to check. If you somehow know that it cannot possibly happen then you could use static_cast to suppress the warning without the cost of a runtime check, but in most cases the cost doesn't matter anyway.

lowercase-with-hyphens is the style I most often see on GitHub.*

lowercase_with_underscores is probably the second most popular style I see.

The former is my preference because it saves keystrokes.

^{* Anecdotal; I haven't collected any data.}

If you are using Rails there's also remove.

E.g. "Testmessage".remove("message") yields "Test".

Warning: this method removes all occurrences

In my case it was because it was being backed up my a background process which started before I opened Access. It isn't normally a problem if it have the database open when the backup starts.

In case someone is interested in passing arguments to cmd.exe and running the python script in a Virtual Environment, these are the steps I used:

On the Notepad++ -> Run -> Run , I enter the following:

cmd /C cd $(CURRENT_DIRECTORY) && "PATH_to_.bat_file" $(FULL_CURRENT_PATH)

Here I cd into the directory in which the .py file exists, so that it enables accessing any other relevant files which are in the directory of the .py code.

And on the .bat file I have:

@ECHO off
set File_Path=%1

call activate Venv
python %File_Path%
pause

The parentheses are poorly placed.

You need to use:

doThrow(new Exception()).when(mockedObject).methodReturningVoid(...);
                                          ^

and NOT use:

doThrow(new Exception()).when(mockedObject.methodReturningVoid(...));
                                                                   ^

This is explained in the documentation

There is a command-line tool called XSD2DB, that generates database from xsd-files, available at sourceforge.

window.location = '/';

Should usually do the trick, but it depends on your sites directories. This will work for your example

The version of the pom.xml should be valid

<groupId>com.amazonaws.lambda</groupId>
<artifactId>lambda</artifactId>
<version>2.2.4 SNAPSHOT</version>
<packaging>jar</packaging>

This version should not be like 2.2.4. etc

All the plugins listed above have a serious problem - they are using the virtual folders implemented via WordPress Taxonomy API, while X4 Media Library is using the real physical folders located in your wp-content/uploads directory on the server.

What happens when you put some images to the folder using any plugin listed above? Because of they are using the virtual folders, the destinition folder is represented as a taxonomy tag in the database, so they just assign the folder's tag to moved files.

There are no real modifications happened on your physical disk, in the wp-content/uploads directory. You can see that images URL didn't change when you move them to another folder.

Alternatively, with X4 Media Library if you put some files to the folder they will really be moved to that physical folder on your disk, in the wp-content/uploads directory, and the images URL will be changed automatically.

Moreover, this plugin will make sure that all the links associated with these images in all your Posts, Pages and other custom types will be updated automatically.

For me it was the JDK that was not set up correctly. I found a solution that I documented here: https://stackoverflow.com/a/40127871/808723

A web application's context path is the directory that contains the web application's WEB-INF directory. It can be thought of as the 'home' of the web app. Often, when writing web applications, it can be important to get the actual location of this directory in the file system, since this allows you to do things such as read from files or write to files.

This location can be obtained via the ServletContext object's getRealPath() method. This method can be passed a String parameter set to File.separator to get the path using the operating system's file separator ("/" for UNIX, "\" for Windows).

This is for a string array:

string.Join(delimiter, array);

This is for a List<string>:

string.Join(delimiter, list.ToArray());

And this is for a list of custom objects:

string.Join(delimiter, list.Select(i => i.Boo).ToArray());

You need to have the private key of the signing certificate in the keychain along with the public key. Have you created the certificate using the same Mac (keychain) ?

Solution #1:

• Revoke the signing certificate (reset) from apple developer portal
• Create the signing certificate again on the same mac (keychain). Then you will have the private key for the signing certificate!

Solution #2:

• Export the signing identities from the origin xCode
• Import the signing on your xCode

Apple documentation: https://developer.apple.com/library/content/documentation/IDEs/Conceptual/AppDistributionGuide/MaintainingCertificates/MaintainingCertificates.html

// Use any date you want, for the purpose of this example we use 1980-08-03.
var myDate = new DateTime(1980,8,3);
var lastDayOfMonth = new DateTime(myDate.Year, myDate.Month, DateTime.DaysInMonth(myDate.Year, myDate.Month));

I always use object literals

{id: 1, speaker:"john", country: "au"}

The following example demonstrates how to POST a JSON via WebClient.UploadString Method:

var vm = new { k = "1", a = "2", c = "3", v=  "4" };
using (var client = new WebClient())
{
   var dataString = JsonConvert.SerializeObject(vm);
   client.Headers.Add(HttpRequestHeader.ContentType, "application/json");
   client.UploadString(new Uri("http://www.contoso.com/1.0/service/action"), "POST", dataString);
}

Prerequisites: Json.NET library

I picked up random samples and tested it against the 100,000 items as below:

let array=[]
for (var i=1;i<100000;i++){

 let j= Math.floor(Math.random() * i) + 1
  array.push({"name":"Joe"+j, "age":j})
}

And here the performance result for each:

  Vlad Bezden Time:         === > 15ms
  Travis J Time: 25ms       === > 25ms 
  Niet the Dark Absol Time: === > 30ms
  Arun Saini Time:          === > 31ms
  Mrchief Time:             === > 54ms
  Ivan Nosov Time:          === > 14374ms

Also, I want to mention, since the items are generated randomly, the second place was iterating between Travis and Niet.

Exponentiation by squaring.

int ipow(int base, int exp)
{
    int result = 1;
    for (;;)
    {
        if (exp & 1)
            result *= base;
        exp >>= 1;
        if (!exp)
            break;
        base *= base;
    }

    return result;
}

This is the standard method for doing modular exponentiation for huge numbers in asymmetric cryptography.

git log --numstat just gives you only the numbers

When you want to access an element, you have to first dereference your pointer, and then index the element you want (which is also dereferncing). i.e. you need to do:

printf("\nvalue:%c", (*ptr)[0]); , which is the same as *((*ptr)+0)

Note that working with pointer to arrays are not very common in C. instead, one just use a pointer to the first element in an array, and either deal with the length as a separate element, or place a senitel value at the end of the array, so one can learn when the array ends, e.g.

char arr[5] = {'a','b','c','d','e',0}; 
char *ptr = arr; //same as char *ptr = &arr[0]

printf("\nvalue:%c", ptr[0]);

Or you can try to add in local name resolution (hosts file found in the directory etc in most operating systems, details differ) something like this:

192.168.1.1 Linksys 

and next

var req = https.request({ 
    host: 'Linksys', 
    port: 443,
    path: '/',
    method: 'GET'
...

will work.

OS : Win10, Visual Studio 2015

Solution : Go to control panel ---> uninstall program ---MSvisual studio ----> change ---->organize = repair

and repair it. Note that you must connect to internet until repairing finish.

Good luck.

Regarding the " I couldn't get the SSIS import / export to work as I got the error 'Failure inserting into the read-only column "id"'. This can be gotten around by specifying in the mapping screen that you do want to allow Identity elements to be inserted.

After that, everything worked fine using SQL Import/Export wizard to copy from Azure to local database.

I only had SQL Import/Export Wizard that comes with SQL Server 2008 R2 (worked fine), and Visual Studio 2012 Express to create local database.

The data.table package has its IDate class and functionalities similar to lubridate or the zoo package. You could do:

dt = data.table(
  Name = c('Joe', 'Amy', 'John'),
  JoiningDate = c('12/31/09', '10/28/09', '05/06/10'),
  AmtPaid = c(1000, 100, 200)
)

require(data.table)
dt[ , JoiningDate := as.IDate(JoiningDate, '%m/%d/%y') ]

"I want to store a hierarchy of objects as a tree"

C++11 has come and gone and they still didn't see a need to provide a std::tree, although the idea did come up (see here). Maybe the reason they haven't added this is that it is trivially easy to build your own on top of the existing containers. For example...

template< typename T >
struct tree_node
   {
   T t;
   std::vector<tree_node> children;
   };

A simple traversal would use recursion...

template< typename T >
void tree_node<T>::walk_depth_first() const
   {
   cout<<t;
   for ( auto & n: children ) n.walk_depth_first();
   }

If you want to maintain a hierarchy and you want it to work with STL algorithms, then things may get complicated. You could build your own iterators and achieve some compatibility, however many of the algorithms simply don't make any sense for a hierarchy (anything that changes the order of a range, for example). Even defining a range within a hierarchy could be a messy business.

If you are using a strongly-typed dataset then you should do this:

If Not ediTransactionRow.Ispay_id1Null Then
    'Do processing here
End If

You are getting the error because a strongly-typed data set retrieves the underlying value and exposes the conversion through the property. For instance, here is essentially what is happening:

Public Property pay_Id1 Then
   Get
     return DirectCast(me.GetValue("pay_Id1", short)
   End Get
   'Abbreviated for clarity
End Property

The GetValue method is returning DBNull which cannot be converted to a short.

In the case where you handle the auth yourself (i.e don't use a provider like Auth0), the following may work:

1. Issue JWT token with relatively short expiry, say 15min.
2. Application checks token expiry date before any transaction requiring a token (token contains expiry date). If token has expired, then it first asks API to 'refresh' the token (this is done transparently to the UX).
3. API gets token refresh request, but first checks user database to see if a 'reauth' flag has been set against that user profile (token can contain user id). If the flag is present, then the token refresh is denied, otherwise a new token is issued.
4. Repeat.

The 'reauth' flag in the database backend would be set when, for example, the user has reset their password. The flag gets removed when the user logs in next time.

In addition, let's say you have a policy whereby a user must login at least once every 72hrs. In that case, your API token refresh logic would also check the user's last login date from the user database and deny/allow the token refresh on that basis.

In your last block you have a comma after 'lang', followed immediately with a function. This is not valid json.

EDIT

It appears that the readme was incorrect. I had to to pass an array with the string 'twitter'.

var converter = new Showdown.converter({extensions: ['twitter']}); converter.makeHtml('whatever @meandave2020'); // output "<p>whatever <a href="http://twitter.com/meandave2020">@meandave2020</a></p>" 

I submitted a pull request to update this.

There are a bunch of different ways depending on how far along you are and which branch(es) you want them on.

Let's take a classic mistake:

$ git checkout master
... pause for coffee, etc ...
... return, edit a bunch of stuff, then: oops, wanted to be on develop

So now you want these changes, which you have not yet committed to master, to be on develop.

1. If you don't have a develop yet, the method is trivial:

   $ git checkout -b develop
   

   This creates a new develop branch starting from wherever you are now. Now you can commit and the new stuff is all on develop.

2. You do have a develop. See if Git will let you switch without doing anything:

   $ git checkout develop
   

   This will either succeed, or complain. If it succeeds, great! Just commit. If not (error: Your local changes to the following files would be overwritten ...), you still have lots of options.

   The easiest is probably git stash (as all the other answer-ers that beat me to clicking post said). Run git stash save or git stash push,¹ or just plain git stash which is short for save / push:

   $ git stash
   

   This commits your code (yes, it really does make some commits) using a weird non-branch-y method. The commits it makes are not "on" any branch but are now safely stored in the repository, so you can now switch branches, then "apply" the stash:

   $ git checkout develop
   Switched to branch 'develop'
   $ git stash apply
   

   If all goes well, and you like the results, you should then git stash drop the stash. This deletes the reference to the weird non-branch-y commits. (They're still in the repository, and can sometimes be retrieved in an emergency, but for most purposes, you should consider them gone at that point.)

The apply step does a merge of the stashed changes, using Git's powerful underlying merge machinery, the same kind of thing it uses when you do branch merges. This means you can get "merge conflicts" if the branch you were working on by mistake, is sufficiently different from the branch you meant to be working on. So it's a good idea to inspect the results carefully before you assume that the stash applied cleanly, even if Git itself did not detect any merge conflicts.

Many people use git stash pop, which is short-hand for git stash apply && git stash drop. That's fine as far as it goes, but it means that if the application results in a mess, and you decide you don't want to proceed down this path, you can't get the stash back easily. That's why I recommend separate apply, inspect results, drop only if/when satisfied. (This does of course introduce another point where you can take another coffee break and forget what you were doing, come back, and do the wrong thing, so it's not a perfect cure.)

¹The save in git stash save is the old verb for creating a new stash. Git version 2.13 introduced the new verb to make things more consistent with pop and to add more options to the creation command. Git version 2.16 formally deprecated the old verb (though it still works in Git 2.23, which is the latest release at the time I am editing this).

Nice Explanation from http://www.programmerinterview.com/index.php/data-structures/dfs-vs-bfs/

An example of BFS

Here’s an example of what a BFS would look like. This is something like Level Order Tree Traversal where we will use QUEUE with ITERATIVE approach (Mostly RECURSION will end up with DFS). The numbers represent the order in which the nodes are accessed in a BFS:

In a depth first search, you start at the root, and follow one of the branches of the tree as far as possible until either the node you are looking for is found or you hit a leaf node ( a node with no children). If you hit a leaf node, then you continue the search at the nearest ancestor with unexplored children.

An example of DFS

Here’s an example of what a DFS would look like. I think post order traversal in binary tree will start work from the Leaf level first. The numbers represent the order in which the nodes are accessed in a DFS:

Differences between DFS and BFS

Comparing BFS and DFS, the big advantage of DFS is that it has much lower memory requirements than BFS, because it’s not necessary to store all of the child pointers at each level. Depending on the data and what you are looking for, either DFS or BFS could be advantageous.

For example, given a family tree if one were looking for someone on the tree who’s still alive, then it would be safe to assume that person would be on the bottom of the tree. This means that a BFS would take a very long time to reach that last level. A DFS, however, would find the goal faster. But, if one were looking for a family member who died a very long time ago, then that person would be closer to the top of the tree. Then, a BFS would usually be faster than a DFS. So, the advantages of either vary depending on the data and what you’re looking for.

One more example is Facebook; Suggestion on Friends of Friends. We need immediate friends for suggestion where we can use BFS. May be finding the shortest path or detecting the cycle (using recursion) we can use DFS.

This thread does not have enough solutions to choose from, thus here my solution, it does not require tools like sed or awk :

grep '^\[section\]' -A 999 config.ini | tail -n +2  | grep -B 999 '^\[' | head -n -1 | grep '^key' | cut -d '=' -f 2 

If your are to expect sections with more than 999 lines, feel free to adapt the example above. Note that you may want to trim the resulting value, to remove spaces or a comment string after the value. Remove the ^ if you need to match keys that do not start at the beginning of the line, as in the example of the question. Better, match explicitly for white spaces and tabs, in such a case.

If you have multiple values in a given section you want to read, but want to avoid reading the file multiple times:

CONFIG_SECTION=$(grep '^\[section\]' -A 999 config.ini | tail -n +2  | grep -B 999 '^\[' | head -n -1)

KEY1=$(echo ${CONFIG_SECTION} | tr ' ' '\n' | grep key1 | cut -d '=' -f 2)
echo "KEY1=${KEY1}"
KEY2=$(echo ${CONFIG_SECTION} | tr ' ' '\n' | grep key2 | cut -d '=' -f 2)
echo "KEY2=${KEY2}"

When your development target is not supporting any UIControl

In my case i was using StackView in a project with development target 8.0. This error can happen if your development target is not supporting any UIControl.

When you set incorrect target

In below line if you leave default target "target" instead of self then Segmentation fault 11 occurs.

shareBtn.addTarget(self, action: #selector(ViewController.share(_:)), for: .touchUpInside)

For WAMP, this is what finally worked for me.
While it is similar to others, the solutions mentioned on this page, and other locations on the web did not work. Some "minor" detail differed.
Either the location to save the PEM file mattered, but was not specified clearly enough.
Or WHICH php.ini file to be edited was incorrect. Or both.
I'm running a 2020 installation of WAMP 3.2.0 on a Windows 10 machine.

Link to get the pem file:

http://curl.haxx.se/ca/cacert.pem
Copy the entire page and save it as: cacert.pem, in the location mentioned below.

Save the PEM file in this location

<wamp install directory>\bin\php\php<version>\extras\ssl
eg saved file and path: "T:\wamp64\bin\php\php7.3.12\extras\ssl\cacert.pem"

*(I had originally saved it elsewhere (and indicated the saved location in the php.ini file, but that did not work). There might, or might not be, other locations also work. This was the recommended location - I do not know why.)

WHERE
<wamp install directory> = path to your WAMP installation.
eg: T:\wamp64\

<php version> of php that WAMP is running: (to find out, goto: WAMP icon tray -> PHP <version number>
if the version number shown is 7.3.12, then the directory would be: php7.3.12)
eg: php7.3.12

Which php.ini file to edit

To open the proper php.ini file for editing, goto: WAMP icon tray -> PHP -> php.ini.
eg: T:\wamp64\bin\apache\apache2.4.41\bin\php.ini
NOTE: it is NOT the file in the php directory!

Update:
While it looked like I was editing the file: T:\wamp64\bin\apache\apache2.4.41\bin\php.ini,
it was actually editing that file's symlink target: T:/wamp64/bin/php/php7.3.12/phpForApache.ini.

Note that if you follow the above directions, you are NOT editing a php.ini file directly. You are actually editing a phpForApache.ini file. (a post with info about symlinks)

If you read the comments at the top of some of the php.ini files in various WAMP directories, it specifically states to NOT EDIT that particular file.
Make sure that the file you do open for editing does not include this warning.

Installing the extension Link Shell Extension allowed me to see the target of the symlink in the file Properites window, via an added tab. here is an SO answer of mine with more info about this extension.

If you run various versions of php at various times, you may need to save the PEM file in each relevant php directory.

The edits to make in your php.ini file:

Paste the path to your PEM file in the following locations.

• uncomment ;curl.cainfo = and paste in the path to your PEM file.
  eg: curl.cainfo = "T:\wamp64\bin\php\php7.3.12\extras\ssl\cacert.pem"

• uncomment ;openssl.cafile= and paste in the path to your PEM file.
  eg: openssl.cafile="T:\wamp64\bin\php\php7.3.12\extras\ssl\cacert.pem"

Credits:

While not an official resource, here is a link back to the YouTube video that got the last of the details straightened out for me: https://www.youtube.com/watch?v=Fn1V4yQNgLs.

I think there is something missing from the AWS documentation in http://docs.aws.amazon.com/lambda/latest/dg/setup-awscli.html, it did not mention that you should edit the file ~/.aws/config to add your username profile. There are two ways to do this:

1. edit ~/.aws/config or

2. aws configure --profile "your username"

This is the best way to solve this problem.

  if($("#checkbox").is(":checked")){

  // Do something here /////

  };

React Native provides a .measure(...) method which takes a callback and calls it with the offsets and width/height of a component:

myComponent.measure( (fx, fy, width, height, px, py) => {

    console.log('Component width is: ' + width)
    console.log('Component height is: ' + height)
    console.log('X offset to frame: ' + fx)
    console.log('Y offset to frame: ' + fy)
    console.log('X offset to page: ' + px)
    console.log('Y offset to page: ' + py)
})

Example...

The following calculates the layout of a custom component after it is rendered:

class MyComponent extends React.Component {
    render() {
        return <View ref={view => { this.myComponent = view; }} />
    }
    componentDidMount() {
        // Print component dimensions to console
        this.myComponent.measure( (fx, fy, width, height, px, py) => {
            console.log('Component width is: ' + width)
            console.log('Component height is: ' + height)
            console.log('X offset to frame: ' + fx)
            console.log('Y offset to frame: ' + fy)
            console.log('X offset to page: ' + px)
            console.log('Y offset to page: ' + py)
        })        
    }
}

Bug notes

• Note that sometimes the component does not finish rendering before componentDidMount() is called. If you are getting zeros as a result from measure(...), then wrapping it in a setTimeout should solve the problem, i.e.:

  setTimeout( myComponent.measure(...), 0 )
  

I encountered this problem because the dataset was filtered wrongly and the resultant data frame was empty. Even the following caused the error to show:

ggplot(df, aes(x="", y = y, fill=grp))

because df was empty.

string s = "9quali52ty3";
foreach(char c in s)
{
  Console.WriteLine((int)c);
}

I think this may solve your problem:

1. in config/application.rb:

   config.autoload_paths << Rails.root.join('lib')
   

   and keep the right naming convention in lib.

   in lib/foo.rb:

   class Foo
   end
   

   in lib/foo/bar.rb:

   class Foo::Bar
   end
   

2. if you really wanna do some monkey patches in file like lib/extensions.rb, you may manually require it:

   in config/initializers/require.rb:

   require "#{Rails.root}/lib/extensions" 
   

P.S.

• Rails 3 Autoload Modules/Classes by Bill Harding.

• And to understand what does Rails exactly do about auto-loading?
  read Rails autoloading — how it works, and when it doesn't by Simon Coffey.

I would like to refer a previous question, Because I have faced same problem and solved by this solution. First of all a constraint is always built with a Hash value in it's name. So problem is this HASH is varies in different Machine or Database. For example DF__Companies__IsGlo__6AB17FE4 here 6AB17FE4 is the hash value(8 bit). So I am referring a single script which will be fruitful to all

DECLARE @Command NVARCHAR(MAX)
     declare @table_name nvarchar(256)
     declare @col_name nvarchar(256)
     set @table_name = N'ProcedureAlerts'
     set @col_name = N'EmailSent'

     select @Command ='Alter Table dbo.ProcedureAlerts Drop Constraint [' + ( select d.name
     from 
         sys.tables t
         join sys.default_constraints d on d.parent_object_id = t.object_id
         join sys.columns c on c.object_id = t.object_id
                               and c.column_id = d.parent_column_id
     where 
         t.name = @table_name
         and c.name = @col_name) + ']'

    --print @Command
    exec sp_executesql @Command

It will drop your default constraint. However if you want to create it again you can simply try this

ALTER TABLE [dbo].[ProcedureAlerts] ADD DEFAULT((0)) FOR [EmailSent]

Finally, just simply run a DROP command to drop the column.

You can calculate the offset of the element and then compare that with the scroll value like:

$(window).scroll(function() {
   var hT = $('#scroll-to').offset().top,
       hH = $('#scroll-to').outerHeight(),
       wH = $(window).height(),
       wS = $(this).scrollTop();
   if (wS > (hT+hH-wH)){
       console.log('H1 on the view!');
   }
});

Check this Demo Fiddle

Updated Demo Fiddle no alert -- instead FadeIn() the element

Updated code to check if the element is inside the viewport or not. Thus this works whether you are scrolling up or down adding some rules to the if statement:

   if (wS > (hT+hH-wH) && (hT > wS) && (wS+wH > hT+hH)){
       //Do something
   }

Demo Fiddle

John Conde does all the right procedures in his method but doesn't satisfy the final step in your question which is to format the result to your specifications.

This code (Demo) will display the raw difference, expose the trouble with trying to immediately format the raw difference, display my preparation steps, and finally present the correctly formatted result:

$datetime1 = new DateTime('2017-04-26 18:13:06');
$datetime2 = new DateTime('2011-01-17 17:13:00');  // change the millenium to see output difference
$diff = $datetime1->diff($datetime2);

// this will get you very close, but it will not pad the digits to conform with your expected format
echo "Raw Difference: ",$diff->format('%y years %m months %d days %h hours %i minutes %s seconds'),"\n";

// Notice the impact when you change $datetime2's millenium from '1' to '2'
echo "Invalid format: ",$diff->format('%Y-%m-%d %H:%i:%s'),"\n";  // only H does it right

$details=array_intersect_key((array)$diff,array_flip(['y','m','d','h','i','s']));

echo '$detail array: ';
var_export($details);
echo "\n";

array_map(function($v,$k)
    use(&$r)
    {
        $r.=($k=='y'?str_pad($v,4,"0",STR_PAD_LEFT):str_pad($v,2,"0",STR_PAD_LEFT));
        if($k=='y' || $k=='m'){$r.="-";}
        elseif($k=='d'){$r.=" ";}
        elseif($k=='h' || $k=='i'){$r.=":";}
    },$details,array_keys($details)
);
echo "Valid format: ",$r; // now all components of datetime are properly padded

Output:

Raw Difference: 6 years 3 months 9 days 1 hours 0 minutes 6 seconds
Invalid format: 06-3-9 01:0:6
$detail array: array (
  'y' => 6,
  'm' => 3,
  'd' => 9,
  'h' => 1,
  'i' => 0,
  's' => 6,
)
Valid format: 0006-03-09 01:00:06

Now to explain my datetime value preparation:

$details takes the diff object and casts it as an array. array_flip(['y','m','d','h','i','s']) creates an array of keys which will be used to remove all irrelevant keys from (array)$diff using array_intersect_key().

Then using array_map() my method iterates each value and key in $details, pads its left side to the appropriate length with 0's, and concatenates the $r (result) string with the necessary separators to conform with requested datetime format.

If nothing works try Import app folder not the Git root while opening Android Project and Error will be gone

This should do it:

<style>
body {
    background:url(bg.jpg) fixed no-repeat bottom right;
}
</style>

http://www.w3schools.com/cssref/pr_background-position.asp

You can create your own cursors and set them as the cursor using cursor: url('path-to-your-cursor');, or find Firefox's and copy them (bonus: a nice consistent look in every browser).

I'm just learning Schema. I'm using RELAX NG and using xmllint to validate. I'm getting frustrated by the errors coming out of xmlllint. I wish they were a little more informative.

If there is a wrong attribute in the XML then xmllint tells you the name of the unsupported attribute. But if you are missing an attribute in the XML you just get a message saying the element can not be validated.

I'm working on some very complicated XML with very complicated rules, and I'm new to this so tracking down which attribute is missing is taking a long time.

Update: I just found a java tool I'm liking a lot. It can be run from the command line like xmllint and it supports RELAX NG: https://msv.dev.java.net/

When formatting number to 2 decimal places you have two options TRUNCATE and ROUND. You are looking for TRUNCATE function.

Examples:

Without rounding:

TRUNCATE(0.166, 2)
-- will be evaluated to 0.16

TRUNCATE(0.164, 2)
-- will be evaluated to 0.16

docs: http://www.w3resource.com/mysql/mathematical-functions/mysql-truncate-function.php

With rounding:

ROUND(0.166, 2)
-- will be evaluated to 0.17

ROUND(0.164, 2)
-- will be evaluated to 0.16

docs: http://www.w3resource.com/mysql/mathematical-functions/mysql-round-function.php

This does in fact relate to the long standing issue at http://jira.mongodb.org/browse/SERVER-1243 where there are in fact a number of challenges to a clear syntax that supports "all cases" where mutiple array matches are found. There are in fact methods already in place that "aid" in solutions to this problem, such as Bulk Operations which have been implemented after this original post.

It is still not possible to update more than a single matched array element in a single update statement, so even with a "multi" update all you will ever be able to update is just one mathed element in the array for each document in that single statement.

The best possible solution at present is to find and loop all matched documents and process Bulk updates which will at least allow many operations to be sent in a single request with a singular response. You can optionally use .aggregate() to reduce the array content returned in the search result to just those that match the conditions for the update selection:

db.collection.aggregate([
    { "$match": { "events.handled": 1 } },
    { "$project": {
        "events": {
            "$setDifference": [
               { "$map": {
                   "input": "$events",
                   "as": "event",
                   "in": {
                       "$cond": [
                           { "$eq": [ "$$event.handled", 1 ] },
                           "$$el",
                           false
                       ]
                   }
               }},
               [false]
            ]
        }
    }}
]).forEach(function(doc) {
    doc.events.forEach(function(event) {
        bulk.find({ "_id": doc._id, "events.handled": 1  }).updateOne({
            "$set": { "events.$.handled": 0 }
        });
        count++;

        if ( count % 1000 == 0 ) {
            bulk.execute();
            bulk = db.collection.initializeOrderedBulkOp();
        }
    });
});

if ( count % 1000 != 0 )
    bulk.execute();

The .aggregate() portion there will work when there is a "unique" identifier for the array or all content for each element forms a "unique" element itself. This is due to the "set" operator in $setDifference used to filter any false values returned from the $map operation used to process the array for matches.

If your array content does not have unique elements you can try an alternate approach with $redact:

db.collection.aggregate([
    { "$match": { "events.handled": 1 } },
    { "$redact": {
        "$cond": {
            "if": {
                "$eq": [ { "$ifNull": [ "$handled", 1 ] }, 1 ]
            },
            "then": "$$DESCEND",
            "else": "$$PRUNE"
        }
    }}
])

Where it's limitation is that if "handled" was in fact a field meant to be present at other document levels then you are likely going to get unexepected results, but is fine where that field appears only in one document position and is an equality match.

Future releases ( post 3.1 MongoDB ) as of writing will have a $filter operation that is simpler:

db.collection.aggregate([
    { "$match": { "events.handled": 1 } },
    { "$project": {
        "events": {
            "$filter": {
                "input": "$events",
                "as": "event",
                "cond": { "$eq": [ "$$event.handled", 1 ] }
            }
        }
    }}
])

And all releases that support .aggregate() can use the following approach with $unwind, but the usage of that operator makes it the least efficient approach due to the array expansion in the pipeline:

db.collection.aggregate([
    { "$match": { "events.handled": 1 } },
    { "$unwind": "$events" },
    { "$match": { "events.handled": 1 } },
    { "$group": {
        "_id": "$_id",
        "events": { "$push": "$events" }
    }}        
])

In all cases where the MongoDB version supports a "cursor" from aggregate output, then this is just a matter of choosing an approach and iterating the results with the same block of code shown to process the Bulk update statements. Bulk Operations and "cursors" from aggregate output are introduced in the same version ( MongoDB 2.6 ) and therefore usually work hand in hand for processing.

In even earlier versions then it is probably best to just use .find() to return the cursor, and filter out the execution of statements to just the number of times the array element is matched for the .update() iterations:

db.collection.find({ "events.handled": 1 }).forEach(function(doc){ 
    doc.events.filter(function(event){ return event.handled == 1 }).forEach(function(event){
        db.collection.update({ "_id": doc._id },{ "$set": { "events.$.handled": 0 }});
    });
});

If you are aboslutely determined to do "multi" updates or deem that to be ultimately more efficient than processing multiple updates for each matched document, then you can always determine the maximum number of possible array matches and just execute a "multi" update that many times, until basically there are no more documents to update.

A valid approach for MongoDB 2.4 and 2.2 versions could also use .aggregate() to find this value:

var result = db.collection.aggregate([
    { "$match": { "events.handled": 1 } },
    { "$unwind": "$events" },
    { "$match": { "events.handled": 1 } },
    { "$group": {
        "_id": "$_id",
        "count": { "$sum": 1 }
    }},
    { "$group": {
        "_id": null,
        "count": { "$max": "$count" }
    }}
]);

var max = result.result[0].count;

while ( max-- ) {
    db.collection.update({ "events.handled": 1},{ "$set": { "events.$.handled": 0 }},{ "multi": true })
}

Whatever the case, there are certain things you do not want to do within the update:

1. Do not "one shot" update the array: Where if you think it might be more efficient to update the whole array content in code and then just $set the whole array in each document. This might seem faster to process, but there is no guarantee that the array content has not changed since it was read and the update is performed. Though $set is still an atomic operator, it will only update the array with what it "thinks" is the correct data, and thus is likely to overwrite any changes occurring between read and write.

2. Do not calculate index values to update: Where similar to the "one shot" approach you just work out that position 0 and position 2 ( and so on ) are the elements to update and code these in with and eventual statement like:

   { "$set": {
       "events.0.handled": 0,
       "events.2.handled": 0
   }}
   

   Again the problem here is the "presumption" that those index values found when the document was read are the same index values in th array at the time of update. If new items are added to the array in a way that changes the order then those positions are not longer valid and the wrong items are in fact updated.

So until there is a reasonable syntax determined for allowing multiple matched array elements to be processed in single update statement then the basic approach is to either update each matched array element in an indvidual statement ( ideally in Bulk ) or essentially work out the maximum array elements to update or keep updating until no more modified results are returned. At any rate, you should "always" be processing positional $ updates on the matched array element, even if that is only updating one element per statement.

Bulk Operations are in fact the "generalized" solution to processing any operations that work out to be "multiple operations", and since there are more applications for this than merely updating mutiple array elements with the same value, then it has of course been implemented already, and it is presently the best approach to solve this problem.

Update your Eclipse Android development tools. It worked for me.

There is a rather clever solution:

#define MACRO(X,Y)                         \
do {                                       \
  cout << "1st arg is:" << (X) << endl;    \
  cout << "2nd arg is:" << (Y) << endl;    \
  cout << "Sum is:" << ((X)+(Y)) << endl;  \
} while (0)

Now you have a single block-level statement, which must be followed by a semicolon. This behaves as expected and desired in all three examples.

1. you can create your own new network like --net="anyname"
2. this is done to isolate the services from different container.
3. suppose the same service are running in different containers, but the port mapping remains same, the first container starts well , but the same service from second container will fail. so to avoid this, either change the port mappings or create a network.

For those that implemented react js in some part of the website and encounter this issue. Just add a condition to check if the element exist on that page before you render the react component.

<div id="element"></div>

...

const someElement = document.getElementById("element")
    
if(someElement) {
  ReactDOM.render(<Yourcomponent />, someElement)
}

You can use an event on the cell change to fire a macro that does the following:

vNew = Range("cellChanged").value
Application.EnableEvents = False
Application.Undo
vOld = Range("cellChanged").value
Range("cellChanged").value = vNew
Application.EnableEvents = True 

The following is acceptable as well:

@GetMapping(path = { "/{pathVariable1}/{pathVariable1}/somePath", 
                     "/fixedPath/{some-name}/{some-id}/fixed" }, 
            produces = "application/json")

Same can be applied to @RequestMapping as well

You could also do something as follow

public enum DAY {MON, TUES, WED, THU, FRI, SAT, SUN};
EnumSet.allOf(DAY.class).stream().map(e -> e.name()).collect(Collectors.toList())

or

EnumSet.allOf(DAY.class).stream().map(DAY::name).collect(Collectors.toList())

The main reason why I stumbled across this question is that I wanted to write a generic validator that validates whether a given string enum name is valid for a given enum type (Sharing in case anyone finds useful).

For the validation, I had to use Apache's EnumUtils library since the type of enum is not known at compile time.

@SuppressWarnings({ "unchecked", "rawtypes" })
public static void isValidEnumsValid(Class clazz, Set<String> enumNames) {
    Set<String> notAllowedNames = enumNames.stream()
            .filter(enumName -> !EnumUtils.isValidEnum(clazz, enumName))
            .collect(Collectors.toSet());

    if (notAllowedNames.size() > 0) {
        String validEnumNames = (String) EnumUtils.getEnumMap(clazz).keySet().stream()
            .collect(Collectors.joining(", "));

        throw new IllegalArgumentException("The requested values '" + notAllowedNames.stream()
                .collect(Collectors.joining(",")) + "' are not valid. Please select one more (case-sensitive) "
                + "of the following : " + validEnumNames);
    }
}

I was too lazy to write an enum annotation validator as shown in here https://stackoverflow.com/a/51109419/1225551

Please note that there is a mistake in the url provided in this answer:

For a PUT mapping request: the url should be as follows:

http://localhost:9200/name_of_index/_mappings/document_type

and NOT

http://localhost:9200/name_of_index/document_type/_mappings

OpenCL is an effort to make a cross-platform library capable of programming code suitable for, among other things, GPUs. It allows one to write the code without knowing what GPU it will run on, thereby making it easier to use some of the GPU's power without targeting several types of GPU specifically. I suspect it's not as performant as native GPU code (or as native as the GPU manufacturers will allow) but the tradeoff can be worth it for some applications.

It's still in its relatively early stages (1.1 as of this answer), but has gained some traction in the industry - for instance it is natively supported on OS X 10.5 and above.

This is a way to see if any XML-files exists in that folder, yes.

To check for specific files use File.Exists(path), which will return a boolean indicating wheter the file at path exists.

You will need have to download InternetExplorer driver executable on your system, download it from the source (http://code.google.com/p/selenium/downloads/list) after download unzip it and put on the place of somewhere in your computer. In my example, I will place it to D:\iexploredriver.exe

Then you have write below code in your eclipse main class

   System.setProperty("webdriver.ie.driver", "D:/iexploredriver.exe");
   WebDriver driver = new InternetExplorerDriver();

db.Lead.find(

{"name": {'$regex' : '.*' + "Ravi" + '.*'}},
{
"$or": [{
    'added_by':"[email protected]"
}, {
    'added_by':"[email protected]"
}]
}

);

You cannot scroll images continuously using the HTML marquee tag - it must have JavaScript added for the continuous scrolling functionality.

There is a JavaScript plugin called crawler.js available on the dynamic drive forum for achieving this functionality. This plugin was created by John Davenport Scheuer and has been modified over time to suit new browsers.

I have also implemented this plugin into my blog to document all the steps to use this plugin. Here is the sample code:

<head>
    <script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
    <script src="assets/js/crawler.js" type="text/javascript" ></script>
</head>

<div id="mycrawler2" style="margin-top: -3px; " class="productswesupport">
    <img src="assets/images/products/ie.png" />
    <img src="assets/images/products/browser.png" />
    <img src="assets/images/products/chrome.png" />
    <img src="assets/images/products/safari.png" />
</div>

Here is the plugin configration:

marqueeInit({
    uniqueid: 'mycrawler2',
    style: {
    },
    inc: 5, //speed - pixel increment for each iteration of this marquee's movement
    mouse: 'cursor driven', //mouseover behavior ('pause' 'cursor driven' or false)
    moveatleast: 2,
    neutral: 150,
    savedirection: true,
    random: true
});

first run below commands as super user sudo code . --user-data-dir='.' it will open the visual code studio import the folder of your project and set the launch.json as below

{
    "version": "0.2.0",
    "configurations": [
        {
            "type": "node",
            "request": "launch",
            "name": "Launch Program",
            "program": "${workspaceFolder}/app/release/web.js",
            "outFiles": [
                "${workspaceFolder}/**/*.js"
            ],
            "runtimeExecutable": "/root/.nvm/versions/node/v8.9.4/bin/node"
        }
    ]
}

path of runtimeExecutable will be output of "which node" command.

Run the server in debug mode cheers

You might want indexOf

if (code.indexOf("ST1") >= 0) { ... }
else if (code.indexOf("ST2") >= 0) { ... }

It checks if contains is anywhere in the string variable code. This requires code to be a string. If you want this solution to be case-insensitive you have to change the case to all the same with either String.toLowerCase() or String.toUpperCase().

You could also work with a switch statement like

switch (true) {
    case (code.indexOf('ST1') >= 0):
        document.write('code contains "ST1"');
        break;
    case (code.indexOf('ST2') >= 0):
        document.write('code contains "ST2"');        
        break;        
    case (code.indexOf('ST3') >= 0):
        document.write('code contains "ST3"');
        break;        
    }?

In order to simulate the issue that you are facing, I created the following sample using SSIS 2008 R2 with SQL Server 2008 R2 backend. The example is based on what I gathered from your question. This example doesn't provide a solution but it might help you to identify where the problem could be in your case.

Created a simple CSV file with two columns namely order number and order date. As you had mentioned in your question, values of both the columns are qualified with double quotes (") and also the lines end with Line Feed (\n) with the date being the last column. The below screenshot was taken using Notepad++, which can display the special characters in a file. LF in the screenshot denotes Line Feed.

Created a simple table named dbo.Destination in the SQL Server database to populate the CSV file data using SSIS package. Create script for the table is given below.

CREATE TABLE [dbo].[Destination](
    [OrderNumber] [varchar](50) NULL,
    [OrderDate] [date] NULL
) ON [PRIMARY]
GO

On the SSIS package, I created two connection managers. SQLServer was created using the OLE DB Connection to connect to the SQL Server database. FlatFile is a flat file connection manager.

Flat file connection manager was configured to read the CSV file and the settings are shown below. The red arrows indicate the changes made.

Provided a name to the flat file connection manager. Browsed to the location of the CSV file and selected the file path. Entered the double quote (") as the text qualifier. Changed the Header row delimiter from {CR}{LF} to {LF}. This header row delimiter change also reflects on the Columns section.

No changes were made in the Columns section.

Changed the column name from Column0 to OrderNumber.

Changed the column name from Column1 to OrderDate and also changed the data type to date [DT_DATE]

Preview of the data within the flat file connection manager looks good.

On the Control Flow tab of the SSIS package, placed a Data Flow Task.

Within the Data Flow Task, placed a Flat File Source and an OLE DB Destination.

The Flat File Source was configured to read the CSV file data using the FlatFile connection manager. Below three screenshots show how the flat file source component was configured.

The OLE DB Destination component was configured to accept the data from Flat File Source and insert it into SQL Server database table named dbo.Destination. Below three screenshots show how the OLE DB Destination component was configured.

Using the steps mentioned in the below 5 screenshots, I added a data viewer on the flow between the Flat File Source and OLE DB Destination.

Before running the package, I verified the initial data present in the table. It is currently empty because I created this using the script provided at the beginning of this post.

Executed the package and the package execution temporarily paused to display the data flowing from Flat File Source to OLE DB Destination in the data viewer. I clicked on the run button to proceed with the execution.

The package executed successfully.

Flat file source data was inserted successfully into the table dbo.Destination.

Here is the layout of the table dbo.Destination. As you can see, the field OrderDate is of data type date and the package still continued to insert the data correctly.

This post even though is not a solution. Hopefully helps you to find out where the problem could be in your scenario.

What exactly IS unit testing? Is it built into code or run as separate programs? Or something else?

From MSDN: The primary goal of unit testing is to take the smallest piece of testable software in the application, isolate it from the remainder of the code, and determine whether it behaves exactly as you expect.

Essentially, you are writing small bits of code to test the individual bits of your code. In the .net world, you would run these small bits of code using something like NUnit or MBunit or even the built in testing tools in visual studio. In Java you might use JUnit. Essentially the test runners will build your project, load and execute the unit tests and then let you know if they pass or fail.

How do you do it?

Well it's easier said than done to unit test. It takes quite a bit of practice to get good at it. You need to structure your code in a way that makes it easy to unit test to make your tests effective.

When should it be done? Are there times or projects not to do it? Is everything unit-testable?

You should do it where it makes sense. Not everything is suited to unit testing. For example UI code is very hard to unit test and you often get little benefit from doing so. Business Layer code however is often very suitable for tests and that is where most unit testing is focused.

Unit testing is a massive topic and to fully get an understanding of how it can best benefit you I'd recommend getting hold of a book on unit testing such as "Test Driven Development by Example" which will give you a good grasp on the concepts and how you can apply them to your code.

Create system user some_user if it doesn't exist

if [[ $(getent passwd some_user) = "" ]]; then
    sudo adduser --no-create-home --force-badname --disabled-login --disabled-password --system some_user
fi

I just had the same problem and ran into this post. It actually helped me to get it running with the native Send-MailMessage command-let and here is my code:

$cred = Get-Credential
Send-MailMessage ....... -SmtpServer "smtp.gmail.com" -UseSsl -Credential $cred -Port 587 

However, in order to have Gmail allowing me to use the SMTP server, I had to log in into my Gmail account and under this link https://www.google.com/settings/security set the "Access for less secure apps" to "Enabled". Then finally it did work!!

I have spend few hours searching for a right library, but finally I wrote my own code :) You can read file (or database) with whatever tools you want and then apply the following routine to each line:

private static string[] SmartSplit(string line, char separator = ',')
{
    var inQuotes = false;
    var token = "";
    var lines = new List<string>();
    for (var i = 0; i < line.Length; i++) {
        var ch = line[i];
        if (inQuotes) // process string in quotes, 
        {
            if (ch == '"') {
                if (i<line.Length-1 && line[i + 1] == '"') {
                    i++;
                    token += '"';
                }
                else inQuotes = false;
            } else token += ch;
        } else {
            if (ch == '"') inQuotes = true;
            else if (ch == separator) {
                lines.Add(token);
                token = "";
                } else token += ch;
            }
    }
    lines.Add(token);
    return lines.ToArray();
}

input_list = ['foo','bar','baz']
for i in range(-1,-len(input_list)-1,-1)
    print(input_list[i])

i think this one is also simple way to do it... read from end and keep decrementing till the length of list, since we never execute the "end" index hence added -1 also

Another way is here

hash = {one: 1, two: 2}

hash.member?(:one)
#=> true

hash.member?(:five)
#=> false

Edit

The question has now superbly been answered by Julien Lebosquain. I would also like to extend his answer with ignoreCase, defaultValue and optional arguments, while adding TryParse and ParseOrDefault.

public abstract class ConstrainedEnumParser<TClass> where TClass : class
// value type constraint S ("TEnum") depends on reference type T ("TClass") [and on struct]
{
    // internal constructor, to prevent this class from being inherited outside this code
    internal ConstrainedEnumParser() {}
    // Parse using pragmatic/adhoc hard cast:
    //  - struct + class = enum
    //  - 'guaranteed' call from derived <System.Enum>-constrained type EnumUtils
    public static TEnum Parse<TEnum>(string value, bool ignoreCase = false) where TEnum : struct, TClass
    {
        return (TEnum)Enum.Parse(typeof(TEnum), value, ignoreCase);
    }
    public static bool TryParse<TEnum>(string value, out TEnum result, bool ignoreCase = false, TEnum defaultValue = default(TEnum)) where TEnum : struct, TClass // value type constraint S depending on T
    {
        var didParse = Enum.TryParse(value, ignoreCase, out result);
        if (didParse == false)
        {
            result = defaultValue;
        }
        return didParse;
    }
    public static TEnum ParseOrDefault<TEnum>(string value, bool ignoreCase = false, TEnum defaultValue = default(TEnum)) where TEnum : struct, TClass // value type constraint S depending on T
    {
        if (string.IsNullOrEmpty(value)) { return defaultValue; }
        TEnum result;
        if (Enum.TryParse(value, ignoreCase, out result)) { return result; }
        return defaultValue;
    }
}

public class EnumUtils: ConstrainedEnumParser<System.Enum>
// reference type constraint to any <System.Enum>
{
    // call to parse will then contain constraint to specific <System.Enum>-class
}

Examples of usage:

WeekDay parsedDayOrArgumentException = EnumUtils.Parse<WeekDay>("monday", ignoreCase:true);
WeekDay parsedDayOrDefault;
bool didParse = EnumUtils.TryParse<WeekDay>("clubs", out parsedDayOrDefault, ignoreCase:true);
parsedDayOrDefault = EnumUtils.ParseOrDefault<WeekDay>("friday", ignoreCase:true, defaultValue:WeekDay.Sunday);

Old

My old improvements on Vivek's answer by using the comments and 'new' developments:

• use TEnum for clarity for users
• add more interface-constraints for additional constraint-checking
• let TryParse handle ignoreCase with the existing parameter (introduced in VS2010/.Net 4)
• optionally use the generic default value (introduced in VS2005/.Net 2)
• use optional arguments(introduced in VS2010/.Net 4) with default values, for defaultValue and ignoreCase

resulting in:

public static class EnumUtils
{
    public static TEnum ParseEnum<TEnum>(this string value,
                                         bool ignoreCase = true,
                                         TEnum defaultValue = default(TEnum))
        where TEnum : struct,  IComparable, IFormattable, IConvertible
    {
        if ( ! typeof(TEnum).IsEnum) { throw new ArgumentException("TEnum must be an enumerated type"); }
        if (string.IsNullOrEmpty(value)) { return defaultValue; }
        TEnum lResult;
        if (Enum.TryParse(value, ignoreCase, out lResult)) { return lResult; }
        return defaultValue;
    }
}

You can't have a non-keyword argument after a keyword argument.

Make sure you re-arrange your function arguments like so:

def a(len1,til,hgt=len1,col=0):
    system('mode con cols='+len1,'lines='+hgt)
    system('title',til)
    system('color',col)

a(64,"hi",25,"0b")

Sure, being in master branch all you need to do is:

git merge <commit-id>

where commit-id is hash of the last commit from newbranch that you want to get in your master branch.

You can find out more about any git command by doing git help <command>. It that case it's git help merge. And docs are saying that the last argument for merge command is <commit>..., so you can pass reference to any commit or even multiple commits. Though, I never did the latter myself.

<script type="text/javascript">
var jvalue = 'this is javascript value';

<?php $abc = "<script>document.write(jvalue)</script>"?>   
</script>
<?php echo  'php_'.$abc;?>

I had similar issue. In my case on disabled elements was applied that aspNetDisabled class and all disabled controls had wrong colors. So, I used jquery to remove this class on every element/control I wont and everything works and looks great now.

This is my code for removing aspNetDisabled class:

$(document).ready(function () {

    $("span").removeClass("aspNetDisabled");
    $("select").removeClass("aspNetDisabled");
    $("input").removeClass("aspNetDisabled");

}); 

If installed via apt-get in Ubuntu 12.04, don't forget to chown -R mongodb:nogroup /path/to/new/directory. Also, change the configuration at /etc/mongodb.conf.

As a reminder, the mongodb-10gen package is now started via upstart, so the config script is in /etc/init/mongodb.conf

I just went through this, hope googlers find it useful :)

I know this is old, but here's the solution I came up with when I didn't like the ones I found.

-Loop through the array (Variant) adding each element and some divider to a string, unless it matches the one you want to remove -Then split the string on the divider

tmpString=""
For Each arrElem in GlobalArray
   If CStr(arrElem) = "removeThis" Then
      GoTo SkipElem
   Else
      tmpString =tmpString & ":-:" & CStr(arrElem)
   End If
SkipElem:
Next
GlobalArray = Split(tmpString, ":-:")

Obviously the use of strings creates some limitations, like needing to be sure of the information already in the array, and as-is this code makes the first array element blank, but it does what I need and with a little more work it could be more versatile.

also works if you do a "display: block;" on the td, destroying the td identity, but works!

cursor.execute(sql,array)

Only takes two arguments.
It will iterate the "array"-object and match ? in the sql-string.
(with sanity checks to avoid sql-injection)

I think you are editing something in the windows registry but that has no effect on the path.

Try this:

How to Add, Remove or Edit Environment variables in Windows 7

the variable of interest is the PATH

also you can type on the command line:

Set PATH=%PATH%;(your new path);

why do you ever want to use out?

To let others know that the variable will be initialized when it returns from the called method!

As mentioned above: "for an out parameter, the calling method is required to assign a value before the method returns."

example:

Car car;
SetUpCar(out car);
car.drive();  // You know car is initialized.

Use following command to untrack files

git rm --cached <file path>

This is sort of like finding a kind of integer log. There are bit-twiddling tricks, but I've made my own tool for this. The goal of course is for speed.

My realization is that the CPU has an automatic bit-detector already, used for integer to float conversion! So use that.

double ff=(double)(v|1);
return ((*(1+(uint32_t *)&ff))>>20)-1023;  // assumes x86 endianness

This version casts the value to a double, then reads off the exponent, which tells you where the bit was. The fancy shift and subtract is to extract the proper parts from the IEEE value.

It's slightly faster to use floats, but a float can only give you the first 24 bit positions because of its smaller precision.

To do this safely, without undefined behaviour in C++ or C, use memcpy instead of pointer casting for type-punning. Compilers know how to inline it efficiently.

// static_assert(sizeof(double) == 2 * sizeof(uint32_t), "double isn't 8-byte IEEE binary64");
// and also static_assert something about FLT_ENDIAN?

double ff=(double)(v|1);

uint32_t tmp;
memcpy(&tmp, ((const char*)&ff)+sizeof(uint32_t), sizeof(uint32_t));
return (tmp>>20)-1023;

Or in C99 and later, use a union {double d; uint32_t u[2];};. But note that in C++, union type punning is only supported on some compilers as an extension, not in ISO C++.

This will usually be slower than a platform-specific intrinsic for a leading-zeros counting instruction, but portable ISO C has no such function. Some CPUs also lack a leading-zero counting instruction, but some of those can efficiently convert integers to double. Type-punning an FP bit pattern back to integer can be slow, though (e.g. on PowerPC it requires a store/reload and usually causes a load-hit-store stall).

This algorithm could potentially be useful for SIMD implementations, because fewer CPUs have SIMD lzcnt. x86 only got such an instruction with AVX512CD

Another simplest way to connect is through an OdbcConnection using App.config file like this

  <appSettings>  
    <add key="Conn" value="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|MyDB.mdb;Persist Security Info=True"/>
  </appSettings>

MyDB.mdb is my database file and it is present in current primary application folder with main exe file.

if your mdf file has password then use like this

  <appSettings>
    <add key="Conn" value="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|MyDB.mdb;Persist Security Info=True;Jet OLEDB:Database Password=Admin$@123"/>
  </appSettings>

you can make it using js file and ajax call. while validating data using js file we can read the text of selected dropdown

$("#dropdownid").val();   for value
$("#dropdownid").text(); for selected value

catch these into two variables and take it as inputs to ajax call for a php file

$.ajax 
   ({
     url:"callingphpfile.php",//url of fetching php  
     method:"POST", //type 
     data:"val1="+value+"&val2="+selectedtext,
     success:function(data) //return the data     
     {

}

and in php you can get it as

    if (isset($_POST["val1"])) {
    $val1= $_POST["val1"] ;
}

if (isset($_POST["val2"])) {
  $selectedtext= $_POST["val1"];
}

I suspect the error is caused by this:

foreach (KeyValuePair<int, int> kvp in rankings)

rankings is a dictionary, which is IEnumerable. By using it in a foreach loop, you're specifying that you want each KeyValuePair from the dictionary in a deferred manner. That is, the next KeyValuePair is not returned until your loop iterates again.

But you're modifying the dictionary inside your loop:

rankings[kvp.Key] = rankings[kvp.Key] + 4;

which isn't allowed...so you get the exception.

You could simply do this

foreach (KeyValuePair<int, int> kvp in rankings.ToArray())

Use the library ngx-print.

Installing:

yarn add ngx-print
or
npm install ngx-print --save

Change your module:

import {NgxPrintModule} from 'ngx-print';
...
imports: [
    NgxPrintModule,
...

Template:

<div id="print-section">
  // print content
</div>
<button ngxPrint printSectionId="print-section">Print</button>

More details

IIS v10 (but this should be the same also for IIS 7.x)

Quick addition for people which are looking for respective max values

Max for maxAllowedContentLength is: UInt32.MaxValue 4294967295 bytes : ~4GB

Max for maxRequestLength is: Int32.MaxValue 2147483647 bytes : ~2GB

web.config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <system.web>
    <!-- ~ 2GB -->
    <httpRuntime maxRequestLength="2147483647" />
  </system.web>
  <system.webServer>
    <security>
      <requestFiltering>
        <!-- ~ 4GB -->
        <requestLimits maxAllowedContentLength="4294967295" />
      </requestFiltering>
    </security>
  </system.webServer>
</configuration>

On a Mac, I did the following:

1. Find it on o/s (I had already downloaded build tools for 19 and 20)

2. Press Ctrl-Open to allow apps from the internet

3. Move it from sdk/build-tools/android-4.4W folder to sdk/tools/. Whew.

If you need to handle lists of different sizes, worry not! The wonderful itertools module has you covered:

>>> from itertools import zip_longest
>>> list1 = [1,2,1]
>>> list2 = [2,1,2,3]
>>> [sum(x) for x in zip_longest(list1, list2, fillvalue=0)]
[3, 3, 3, 3]
>>>

In Python 2, zip_longest is called izip_longest.

See also this relevant answer and comment on another question.

Here a version that uses shuffle and streams

List<Direction> letters = Arrays.asList(Direction.values());
Collections.shuffle(letters);
return letters.stream().findFirst().get();

It's certainly possible to grab a screenshot using the .NET Framework. The simplest way is to create a new Bitmap object and draw into that using the Graphics.CopyFromScreen method.

Sample code:

using (Bitmap bmpScreenCapture = new Bitmap(Screen.PrimaryScreen.Bounds.Width, 
                                            Screen.PrimaryScreen.Bounds.Height))
using (Graphics g = Graphics.FromImage(bmpScreenCapture))
{
    g.CopyFromScreen(Screen.PrimaryScreen.Bounds.X,
                     Screen.PrimaryScreen.Bounds.Y,
                     0, 0,
                     bmpScreenCapture.Size,
                     CopyPixelOperation.SourceCopy);
}

Caveat: This method doesn't work properly for layered windows. Hans Passant's answer here explains the more complicated method required to get those in your screen shots.

Use '_blank'. It will not only open the link in a new tab but the state of the original webpage will also remain unaffected.

Try:

SqlConnection myConnection = new SqlConnection("Database=testDB;Server=Paul-PC\\SQLEXPRESS;Integrated Security=True;connect timeout = 30");

Details

Xcode 9.0.1, swift 4.0

Solutions

Data

import Foundation

let array = [0,1,2,3,4,5,6,7,8]

Solution 1

extension Int {

    func getString(prefix: Int) -> String {
        return "\(prefix)\(self)"
    }

    func getString(prefix: String) -> String {
        return "\(prefix)\(self)"
    }
}

for item in array {
    print(item.getString(prefix: 0))
}

for item in array {
    print(item.getString(prefix: "0x"))
}

Solution 2

for item in array {
    print(String(repeatElement("0", count: 2)) + "\(item)")
}

Solution 3

extension String {

    func repeate(count: Int, string: String? = nil) -> String {

        if count > 1 {
            let repeatedString = string ?? self
            return repeatedString + repeate(count: count-1, string: repeatedString)
        }
        return self
    }
}

for item in array {
    print("0".repeate(count: 3) + "\(item)")
}

Well, you can just sort the files first, and diff the sorted files.

sort file1 > file1.sorted
sort file2 > file2.sorted
diff file1.sorted file2.sorted

You can also filter the output to report lines in file2 which are absent from file1:

diff -u file1.sorted file2.sorted | grep "^+" 

As indicated in comments, you in fact do not need to sort the files. Instead, you can use a process substitution and say:

diff <(sort file1) <(sort file2)

For batch processing files in folder:

for i in *.wav; do ffmpeg -i "$i" -f mp3 "${i%}.mp3"; done

This script converts all "wav" files in folder to mp3 files and adds mp3 extension

ffmpeg have to be installed. (See other answers)

For a custom class to work properly in collections you'll have to implement/override the equals() methods of the class. For sorting also override compareTo().

See this article or google about how to implement those methods properly.

You can use the following:

Double bang !! property lookup

var a = !![]; // true
var a = !!null; // false

hasOwnProperty This is something that I used to use:

var myObject = {
  name: 'John',
  address: null
};
if (myObject.hasOwnProperty('address')) { // true
  // do something if it exists.
}

However, JavaScript decided not to protect the method’s name, so it could be tampered with.

var myObject = {
  hasOwnProperty: 'I will populate it myself!'
};

prop in myObject

var myObject = {
  name: 'John',
  address: null,
  developer: false
};
'developer' in myObject; // true, remember it's looking for exists, not value.

typeof

if (typeof myObject.name !== 'undefined') {
  // do something
}

However, it doesn't check for null.

I think this is the best way.

in operator

var myObject = {
  name: 'John',
  address: null
};

if('name' in myObject) {
  console.log("Name exists in myObject");
}else{
  console.log("Name does not exist in myObject");
}

result:

Name exists in myObject

Here is a link that goes into more detail on the in operator: Determining if an object property exists

I think you put the function in the $(document).ready....... The functions are always provided out the $(document).ready.......

You could loop through DataGridView using Rows property, like:

foreach (DataGridViewRow row in datagridviews.Rows)
{
   currQty += row.Cells["qty"].Value;
   //More code here
}

With Anaconda prompt python is available, but on any other command window, python is an unknown program. Apparently Anaconda installation does not update the path for python executable.

You should run your code in a following manner in order get your output,

python file_name.py user_name

SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
Calendar c = Calendar.getInstance();
c.setTime(new Date()); // Now use today date.
c.add(Calendar.DATE, 5); // Adding 5 days
String output = sdf.format(c.getTime());
System.out.println(output);

I woudl say:

1. Use whatever's easiest to read/understand for most people (so keys, usually, I'd argue)
2. Use whatever you decide consistently throught the whole code base.

This give 2 major advantages:

1. It's easier to spot "common" code so you can re-factor into functions/methiods.
2. It's easier for future developers to maintain.

I don't think it's more expensive to use keys over each, so no need for two different constructs for the same thing in your code.

To trim any set of characters from the beginning and end of a string, you can do the following code where @TrimPattern defines the characters to be trimmed. In this example, Space, tab, LF and CR characters are being trimmed:

Declare @Test nvarchar(50) = Concat (' ', char(9), char(13), char(10), ' ', 'TEST', ' ', char(9), char(10), char(13),' ', 'Test', ' ', char(9), ' ', char(9), char(13), ' ')

DECLARE @TrimPattern nvarchar(max) = '%[^ ' + char(9) + char(13) + char(10) +']%'

SELECT SUBSTRING(@Test, PATINDEX(@TrimPattern, @Test), LEN(@Test) - PATINDEX(@TrimPattern, @Test) - PATINDEX(@TrimPattern, LTRIM(REVERSE(@Test))) + 2)

Choose a valid timezone from the tzinfo database. They tend to take the form e.g. Africa/Gaborne and US/Eastern

Find the one which matches the city nearest you, or the one which has your timezone, then set your value of TIME_ZONE to match.

Chris Beeley is rigth, you only need the proportions by column. Using your data is:

 your_matrix<-( 
               rbind(
                       c(23,234,324), 
                       c(34,534,12), 
                       c(56,324,124), 
                       c(34,234,124),
                       c(123,534,654)
                    )
                )

 barplot(prop.table(your_matrix, 2) )

Gives:

You can use JavaScript Timing Events to call function after certain interval of time:

This shows the alert box after 3 seconds:

setInterval(function(){alert("Hello")},3000);

You can use two method of time event in javascript.i.e.

1. setInterval(): executes a function, over and over again, at specified time intervals
2. setTimeout() : executes a function, once, after waiting a specified number of milliseconds

If the files are not gigantic:

with open('newfile.txt','wb') as newf:
    for filename in list_of_files:
        with open(filename,'rb') as hf:
            newf.write(hf.read())
            # newf.write('\n\n\n')   if you want to introduce
            # some blank lines between the contents of the copied files

If the files are too big to be entirely read and held in RAM, the algorithm must be a little different to read each file to be copied in a loop by chunks of fixed length, using read(10000) for example.

Set Attributes in CodeBehind

textWeight.Attributes.Add("minimum", minValue.ToString());
textWeight.Attributes.Add("maximum", maxValue.ToString());

Result:

<input type="text" minimum="0" maximum="100" id="textWeight" value="2" name="textWeight">

By jQuery

    jQuery(document).ready(function () {

        var textWeight = $("input[type='text']#textWeight");

        textWeight.change(function () {

              var min = textWeight.attr("minimum");

              var max= textWeight.attr("maximum");

              var value = textWeight.val();

              if(val < min || val > max)
              {
                    alert("Your Message");

                    textWeight.val(min);
              }

        });
    });

In Debian NGINX environment i did the following.

Goto /etc/mysql/mysql.conf.d edit mysqld.cnf if you find log-error = /var/log/mysql/error.log add the following 2 lines bellow it.

general_log_file        = /var/log/mysql/mysql.log
general_log             = 1

To see the logs goto /var/log/mysql and tail -f mysql.log

Remember to comment these lines out once you are done with debugging if you are in production environment delete mysql.log as this log file will grow quickly and can be huge.

put .; at classpath value in beginning..it will start working...it happens because it searches the class file in classpath which is mentioned in path variable.

Another way of using pragma:

> table = "foo"
> cur.execute("SELECT group_concat(name, ', ') FROM pragma_table_info(?)", (table,))
> cur.fetchone()
('foo', 'bar', ...,)

To avoid an input with only spaces, use: "[a-zA-Z0-9]+[a-zA-Z0-9 ]+".

eg: abc | abc aBc | abc 123 AbC 938234

To ensure, for example, that a first AND last name are entered, use a slight variation like

"[a-zA-Z]+[ ][a-zA-Z]+"

eg: abc def

I needed something similar, and came up with using the :before (or :after) pseudoclasses:

#mydiv {
   background-color: #fbb;
   margin-top: 100px;
   position: relative;
}
#mydiv:before {
   content: "";
   background-color: #bfb;
   top: -100px;
   height: 100px;
   width: 100%;
   position: absolute;
}

JSFiddle

The possible reason can also be that you have not inherited Controller from ApiController. Happened with me took a while to understand the same.

Simply try to put attribute autocomplete with value "off" to input type.

<input type="password" autocomplete="off" name="password" id="password" />

I tried accepted answer and got message saying generated excel file is corrupted when trying to open. I was able to fix it by doing few modifications like adding below line end of the code.

workbookPart.Workbook.Save();

I have posted full code @ Export DataTable to Excel with Open XML in c#

I would check the DDL for the sequence in the schema. JPA Implementation is responsible only creation of the sequence with the correct allocation size. Therefore, if the allocation size is 50 then your sequence must have the increment of 50 in its DDL.

This case may typically occur with the creation of a sequence with allocation size 1 then later configured to allocation size 50 (or default) but the sequence DDL is not updated.

To link to a YouTube video so it plays in HD by default, use the following URL:

https://www.youtube.com/v/VIDEOID?version=3&vq=hd1080

Change VIDEOID to the YouTube video ID that you want to link to. When someone follows the link, it will display the highest-resolution available (up to 1080p) in full-screen mode. Unfortunately, vq=hd1080 does not work on the normal YouTube site (with comments and related videos).

You can get around this "limitation" by editing the .git/config on the destination server. Add the following to allow a git repository to be pushed to even if it is "checked out":

[receive]
denyCurrentBranch = warn

or

[receive]
denyCurrentBranch = false

The first will allow the push while warning of the possibility to mess up the branch, whereas the second will just quietly allow it.

This can be used to "deploy" code to a server which is not meant for editing. This is not the best approach, but a quick one for deploying code.

I think you want to cast your dt to a date and fix the format of your date literal:

SELECT *
FROM table
WHERE dt::date = '2011-01-01' -- This should be ISO-8601 format, YYYY-MM-DD

Or the standard version:

SELECT *
FROM table
WHERE CAST(dt AS DATE) = '2011-01-01' -- This should be ISO-8601 format, YYYY-MM-DD

The extract function doesn't understand "date" and it returns a number.

Bash has select for this purpose.

select result in Yes No Cancel
do
    echo $result
done

If you want to allow the user to browse for a file, you need to have an input type="file" The closest you could get to your requirement would be to place the input type="file" on the page and hide it. Then, trigger the click event of the input when the button is clicked:

#myFileInput {
    display:none;
}

<input type="file" id="myFileInput" />
<input type="button"
       onclick="document.getElementById('myFileInput').click()" 
       value="Select a File" />

Here's a working fiddle.

Note: I would not recommend this approach. The input type="file" is the mechanism that users are accustomed to using for uploading a file.

<input size="45" type="text" name="name">

The "size" specifies the visible width in characters of the element input.

You can also use the height and width from css.

<input type="text" name="name" style="height:100px; width:300px;">

Look at the google gson library. It provides a rich api for dealing with this and is very straightforward to use.

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <configuration>
                <layout>ZIP</layout> 
            </configuration>
        </plugin>
    </plugins>
</build>

java -Dloader.path=file:///absolute_path/external.jar -jar example.jar

Another pre-5.14 solution: http://www.perlmonks.org/?node_id=346719 (see japhy's post)

As his approach uses map, it also works well for arrays, but requires cascading map to produce a temporary array (otherwise the original would be modified):

my @orig = ('this', 'this sucks', 'what is this?');
my @list = map { s/this/that/; $_ } map { $_ } @orig;
# @orig unmodified

The thing you are missing is which encoding scheme is being used. There are different ways to encode binary numbers. Look into signed number representations. For 9 bits, the ranges and the amount of numbers that can be represented will differ depending on the system used.

Maybe specifying a width would work. When you position:absolute an element, it's width will shrink to the contents I believe.

Although micahtan's answer is good, it won't work in a static method. If you want to retrieve the name of the current type, this one should work everywhere:

string className = MethodBase.GetCurrentMethod().DeclaringType.Name;

1. bin/hadoop fs -get /hdfs/source/path /localfs/destination/path
2. bin/hadoop fs -copyToLocal /hdfs/source/path /localfs/destination/path
3. Point your web browser to HDFS WEBUI(namenode_machine:50070), browse to the file you intend to copy, scroll down the page and click on download the file.

If you want to pass in an array of Doctrine entities, try something like this (Symfony 3.0+):

protected $entities;
protected $selectedEntities;

public function __construct($entities = null, $selectedEntities = null)
{
    $this->entities = $entities;
    $this->selectedEntities = $selectedEntities;
}

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder->add('entities', 'entity', [
        'class' => 'MyBundle:MyEntity',
        'choices' => $this->entities,
        'property' => 'id',
        'multiple' => true,
        'expanded' => true,
        'data' => $this->selectedEntities,
    ]);
}

In English:

401

You are potentially allowed access but for some reason on this request you were denied. Such as a bad password? Try again, with the correct request you will get a success response instead.

403

You are not, ever, allowed. Your name is not on the list, you won't ever get in, go away, don't send a re-try request, it will be refused, always. Go away.

When granting a user access to a database there are a few considerations to be made with advantages and disadvantages in terms of usability and security. Here we have two options for authenticating and granting permission to users. The first is by giving everyone the sa (systems admin) account access and then restricting the permissions manually by retaining a list of the users in which you can grant or deny permissions as needed. This is also known as the SQL authentication method. There are major security flaws in this method, as listed below. The second and better option is to have the Active Directory (AD) handle all the necessary authentication and authorization, also known as Windows authentication. Once the user logs in to their computer the application will connect to the database using those Windows login credentials on the operating system.

The major security issue with using the SQL option is that it violates the principle of least privilege (POLP) which is to only give the user the absolutely necessary permissions they need and no more. By using the sa account you present serious security flaws. The POLP is violated because when the application uses the sa account they have access to the entire database server. Windows authentication on the other hand follows the POLP by only granting access to one database on the server.

The second issue is that there is no need for every instance of the application to have the admin password. This means any application is a potential attack point for the entire server. Windows only uses the Windows credentials to login to the SQL Server. The Windows passwords are stored in a repository as opposed to the SQL database instance itself and the authentication takes place internally within Windows without having to store sa passwords on the application.

A third security issue arises by using the SQL method involves passwords. As presented on the Microsoft website and various security forums, the SQL method doesn’t’ enforce password changing or encryption, rather they are sent as clear text over the network. And the SQL method doesn’t lockout after failing attempts thus allowing a prolonged attempt to break in. Active Directory however, uses Kerberos protocol to encrypt passwords while employing as well a password change system and lockout after failing attempts.

There are efficiency disadvantages as well. Since you will be requiring the user to enter the credentials every time they want to access the database users may forget their credentials.

If a user being removed you would have to remove his credentials from every instance of the application. If you have to update the sa admin password you would have to update every instance of the SQL server. This is time consuming and unsafe, it leaves open the possibility of a dismissed user retaining access to the SQL Server. With the Windows method none of these concerns arise. Everything is centralized and handled by the AD.

The only advantages of using the SQL method lie in its flexibility. You are able to access it from any operating system and network, even remotely. Some older legacy systems as well as some web-based applications may only support sa access.

The AD method also provides time-saving tools such as groups to make it easier to add and remove users, and user tracking ability.

Even if you manage to correct these security flaws in the SQL method, you would be reinventing the wheel. When considering the security advantages provided by Windows authentication, including password policies and following the POLP, it is a much better choice over the SQL authentication. Therefore it is highly recommended to use the Windows authentication option.

Swift 3

In Swift 3 there is addingPercentEncoding

let originalString = "test/test"
let escapedString = originalString.addingPercentEncoding(withAllowedCharacters: .urlHostAllowed)
print(escapedString!)

Output:

test%2Ftest

Swift 1

In iOS 7 and above there is stringByAddingPercentEncodingWithAllowedCharacters

var originalString = "test/test"
var escapedString = originalString.stringByAddingPercentEncodingWithAllowedCharacters(.URLHostAllowedCharacterSet())
println("escapedString: \(escapedString)")

Output:

test%2Ftest

The following are useful (inverted) character sets:

URLFragmentAllowedCharacterSet  "#%<>[\]^`{|}
URLHostAllowedCharacterSet      "#%/<>?@\^`{|}
URLPasswordAllowedCharacterSet  "#%/:<>?@[\]^`{|}
URLPathAllowedCharacterSet      "#%;<>?[\]^`{|}
URLQueryAllowedCharacterSet     "#%<>[\]^`{|}
URLUserAllowedCharacterSet      "#%/:<>?@[\]^`

If you want a different set of characters to be escaped create a set:
Example with added "=" character:

var originalString = "test/test=42"
var customAllowedSet =  NSCharacterSet(charactersInString:"=\"#%/<>?@\\^`{|}").invertedSet
var escapedString = originalString.stringByAddingPercentEncodingWithAllowedCharacters(customAllowedSet)
println("escapedString: \(escapedString)")

Output:

test%2Ftest%3D42

Example to verify ascii characters not in the set:

func printCharactersInSet(set: NSCharacterSet) {
    var characters = ""
    let iSet = set.invertedSet
    for i: UInt32 in 32..<127 {
        let c = Character(UnicodeScalar(i))
        if iSet.longCharacterIsMember(i) {
            characters = characters + String(c)
        }
    }
    print("characters not in set: \'\(characters)\'")
}

Both of the previous 2 answers have at least O(n) time complexity and the string conversion has O(n) space complexity too. Here's a solution for constant time and space:

num // 10 ** (int(math.log(num, 10)) - 1)

Function:

import math

def first_n_digits(num, n):
    return num // 10 ** (int(math.log(num, 10)) - n + 1)

Output:

>>> first_n_digits(123456, 1)
1
>>> first_n_digits(123456, 2)
12
>>> first_n_digits(123456, 3)
123
>>> first_n_digits(123456, 4)
1234
>>> first_n_digits(123456, 5)
12345
>>> first_n_digits(123456, 6)
123456

You will need to add some checks if it's possible that your input number has less digits than you want.

I tested "jenv" and other things like setting "JAVA_HOME" without success. Now i and endet up with following solution

function setJava {
    export JAVA_HOME="$(/usr/libexec/java_home -v $1)"
    launchctl setenv JAVA_HOME $JAVA_HOME
    sudo ln -nsf "$(dirname ${JAVA_HOME})/MacOS" /Library/Java/MacOS 
    java -version
}

(added to ~/.bashrc or ~/.bash.profile or ~/.zshrc)

And calling like that:

setJava 1.8

java_home will handle the wrong input. so you can't do something wrong. Maven and other stuff will pick up the right version now.

Try using Viewport Height

div {
    height:100vh; 
}

It is already discussed here in detail

The above answer by pl_rock is correct, the only thing I would add is to expect the ARG inside the Dockerfile if not you won't have access to it. So if you are doing

docker build -t essearch/ess-elasticsearch:1.7.6 --build-arg number_of_shards=5 --build-arg number_of_replicas=2 --no-cache .

Then inside the Dockerfile you should add

ARG number_of_replicas
ARG number_of_shards

I was running into this problem, so I hope I help someone (myself) in the future.

Doing this with a CSS Grid is pretty easy. The trick is to set the grid's height to 100vw, then assign one of the rows to 75vw, and the remaining one (optional) to 1fr. This gives you, from what I assume is what you're after, a ratio-locked resizing container.

Example here: https://codesandbox.io/s/21r4z95p7j

You can even utilize the bottom gutter space if you so choose, simply by adding another "item".

Edit: StackOverflow's built-in code runner has some side effects. Pop over to the codesandbox link and you'll see the ratio in action.

body {_x000D_
  margin: 0;_x000D_
  padding: 0;_x000D_
  background-color: #334;_x000D_
  color: #eee;_x000D_
}_x000D_
_x000D_
.main {_x000D_
  min-height: 100vh;_x000D_
  min-width: 100vw;_x000D_
  display: grid;_x000D_
  grid-template-columns: 100%;_x000D_
  grid-template-rows: 75vw 1fr;_x000D_
}_x000D_
_x000D_
.item {_x000D_
  background-color: #558;_x000D_
  padding: 2px;_x000D_
  margin: 1px;_x000D_
}_x000D_
_x000D_
.item.dead {_x000D_
  background-color: transparent;_x000D_
}

<html>_x000D_
  <head>_x000D_
    <title>Parcel Sandbox</title>_x000D_
    <meta charset="UTF-8" />_x000D_
    <link rel="stylesheet" href="src/index.css" />_x000D_
  </head>_x000D_
_x000D_
  <body>_x000D_
    <div id="app">_x000D_
      <div class="main">_x000D_
        <div class="item">Item 1</div>_x000D_
        <!-- <div class="item dead">Item 2 (dead area)</div> -->_x000D_
      </div>_x000D_
    </div>_x000D_
  </body>_x000D_
</html>

If you use form.close() in your form and set the FormClosing Event of your form and either use form.close() in this Event ,you fall in unlimited loop and Argument out of range happened and the solution is that change the form.close() with form.dispose() in Event of FormClosing. I hope this little tip help you!!!

If you know the target paper size, you can place your content in a DIV with that specific size and add a margin to that DIV to simulate the print margin. Unfortunately, I don't believe you have extra control over the print functionality apart from just show the print dialog box.

Of course, the problem is all about getting your height back. But how can you do that if you don't know the height ahead of time? Well, if you know what aspect ratio you want to give the container (and keep it responsive), you can get your height back by adding padding to another child of the container, expressed as a percentage.

You can even add a dummy div to the container and set something like padding-top: 56.25% to give the dummy element a height that is a proportion of the container's width. This will push out the container and give it an aspect ratio, in this case 16:9 (56.25%).

Padding and margin use the percentage of the width, that's really the trick here.

According to the documentation.

If you are running on the TensorFlow or CNTK backends, your code will automatically run on GPU if any available GPU is detected.

You can check what all devices are used by tensorflow by -

from tensorflow.python.client import device_lib
print(device_lib.list_local_devices())

Also as suggested in this answer

import tensorflow as tf
sess = tf.Session(config=tf.ConfigProto(log_device_placement=True))

This will print whether your tensorflow is using a CPU or a GPU backend. If you are running this command in jupyter notebook, check out the console from where you have launched the notebook.

If you are sceptic whether you have installed the tensorflow gpu version or not. You can install the gpu version via pip.

pip install tensorflow-gpu

You can also use display: inline-block. The advantage of this is that it will set the height and width like a block element but also set it inline so that you can have another a tag sitting right next to it, permitting the parent space.

You can find out more about display properties here

We can use odd and even CSS rules and jQuery method for alternate row colors

Using CSS

table tr:nth-child(odd) td{
           background:#ccc;
}
table tr:nth-child(even) td{
            background:#fff;
}

Using jQuery

$(document).ready(function()
{
  $("table tr:odd").css("background", "#ccc");
  $("table tr:even").css("background", "#fff");
});

table tr:nth-child(odd) td{_x000D_
           background:#ccc;_x000D_
}_x000D_
table tr:nth-child(even) td{_x000D_
            background:#fff;_x000D_
}

<table>_x000D_
  <tr>_x000D_
    <td>One</td>_x000D_
    <td>one</td>_x000D_
   </tr>_x000D_
  <tr>_x000D_
    <td>Two</td>_x000D_
    <td>two</td>_x000D_
  </tr>_x000D_
</table>

How come no-one seems to like repr?
python 3.7.2:

>>> int_list = [1, 2, 3, 4, 5]
>>> print(repr(int_list))
[1, 2, 3, 4, 5]
>>> 

Take care though, it's an explicit representation. An example shows:

#Print repr(object) backwards
>>> print(repr(int_list)[::-1])
]5 ,4 ,3 ,2 ,1[
>>> 

more info at pydocs-repr

if you want to add a global property, you can use:

    var styleEl = document.createElement('style'), styleSheet;
            document.head.appendChild(styleEl);
            styleSheet = styleEl.sheet;
            styleSheet.insertRule(".modal { position:absolute; bottom:auto; }", 0);

ko.applyBindings accepts a second parameter that is a DOM element to use as the root.

This would let you do something like:

<div id="one">
  <input data-bind="value: name" />
</div>

<div id="two">
  <input data-bind="value: name" />
</div>

<script type="text/javascript">
  var viewModelA = {
     name: ko.observable("Bob")
  };

  var viewModelB = {
     name: ko.observable("Ted")
  };

  ko.applyBindings(viewModelA, document.getElementById("one"));
  ko.applyBindings(viewModelB, document.getElementById("two"));
</script>

So, you can use this technique to bind a viewModel to the dynamic content that you load into your dialog. Overall, you just want to be careful not to call applyBindings multiple times on the same elements, as you will get multiple event handlers attached.

Change modifier from public to internal. .Net deliberately uses private modifier instead of the public, due to preventing any illegal access to your methods/properties/controls out of your project. In fact, public modifier can accessible wherever, so They are really dangerous. Any body out of your project can access to your methods/properties. But In internal modifier no body (other of your current project) can access to your methods/properties.

Suppose you are creating a project, which has some secret fields. So If these fields being accessible out of your project, it can be dangerous, and against to your initial ideas. As one good recommendation, I can say always use internal modifier instead of public modifier.

But some strange!

I must tell also in VB.Net while our methods/properties are still private, it can be accessible from other forms/class by calling form as a variable with no any problem else.

I don't know why in this programming language behavior is different from C#. As we know both are using same Platform and they claim they are almost same Back end Platform, but as you see, they still behave differently.

But I've solved this problem with two approaches. Either; by using Interface (Which is not a recommend, as you know, Interfaces usually need public modifier, and using a public modifier is not recommend (As I told you above)),

Or

Declare your whole Form in somewhere static class and static variable and there is still internal modifier. Then when you suppose to use that form for showing to users, so pass new Form() construction to that static class/variable. Now It can be Accessible every where as you wish. But you still need some thing more. You declare your element internal modifier too in Designer File of Form. While your Form is open, it can be accessible everywhere. It can work for you very well.

Consider This Example.

Suppose you want to access to a Form's TextBox.

So the first job is declaration of a static variable in a static class (The reason of static is ease of access without any using new keywork at future).

Second go to designer class of that Form which supposes to be accessed by other Forms. Change its TextBox modifier declaration from private to internal. Don't worry; .Net never change it again to private modifier after your changing.

Third when you want to call that form to open, so pass the new Form Construction to that static variable-->>static class.

Fourth; from any other Forms (wherever in your project) you can access to that form/control while From is open.

Look at code below (We have three object. 1- a static class (in our example we name it A)

2 - Any Form else which wants to open the final Form (has TextBox, in our example FormB).

3 - The real Form which we need to be opened, and we suppose to access to its internal TextBox1 (in our example FormC).

Look at codes below:

internal static class A
{
    internal static FormC FrmC;
}

FormB ...
{
    '(...)
    A.FrmC = new FormC();
    '(...)
}

FormC (Designer File) . . . 
{
     internal System.Windows.Forms.TextBox TextBox1;
}

You can access to that static Variable (here FormC) and its internal control (here Textbox1) wherever and whenever as you wish, while FormC is open.

Any Comment/idea let me know. I glad to hear from you or any body else about this topic more. Honestly I have had some problems regard to this mentioned problem in past. The best way was the second solution that I hope it can work for you. Let me know any new idea/suggestion.

extend class to AppCompatActivity instead of Activity

I needed to ensure values can still be entered with a comma instead of a point as a decimal separator. This seems to be an age-old problem. Background info can be found following these links:

• https://www.slightfuture.com/webdev/html5-input-number-localization.html
• https://codepen.io/aminimalanimal/full/bdOzRG

I finally solved it with a little bit of jQuery. Replacing the commas with dots onChange. This seems to be working good so far in latest Firefox, Chrome and Safari.

$('input[type=number]').each(function () {

  $(this).change(function () {

    var $replace = $(this).val().toString().replace(/,/g, '.');

    $(this).val($replace);

  })

});

select (select count() from tab1 where field like 'value') + (select count() from tab2 where field like 'value') count

In Java 8 the static Map pattern is even easier and is my preffered method. If you want to use the Enum with Jackson you can override toString and use that instead of name, then annotate with @JsonValue

public enum MyEnum {
    BAR,
    BAZ;
    private static final Map<String, MyEnum> MAP = Stream.of(MyEnum.values()).collect(Collectors.toMap(Enum::name, Function.identity()));
    public static MyEnum fromName(String name){
        return MAP.get(name);
    }
}

public enum MyEnumForJson {
    BAR("bar"),
    BAZ("baz");
    private static final Map<String, MyEnumForJson> MAP = Stream.of(MyEnumForJson.values()).collect(Collectors.toMap(Object::toString, Function.identity()));
    private final String value;

    MyEnumForJson(String value) {
        this.value = value;
    }

    @JsonValue
    @Override
    public String toString() {
        return value;
    }

    public static MyEnumForJson fromValue(String value){
        return MAP.get(value);
    }
}

I ran into this same problem when I wanted to enable SSL to a project hosted on IIS 8. Finally the tool I used was OpenSSL, after many days fighting with makecert commands.The certificate is generated in Debian, but I could import it seamlessly into IIS 7 and 8.

Download the OpenSSL compatible with your OS and this configuration file. Set the configuration file as default configuration of OpenSSL.

First we will generate the private key and certificate of Certification Authority (CA). This certificate is to sign the certificate request (CSR).

You must complete all fields that are required in this process.

1. openssl req -new -x509 -days 3650 -extensions v3_ca -keyout root-cakey.pem -out root-cacert.pem -newkey rsa:4096

You can create a configuration file with default settings like this: Now we will generate the certificate request, which is the file that is sent to the Certification Authorities.

The Common Name must be set the domain of your site, for example: public.organization.com.

2. openssl req -new -nodes -out server-csr.pem -keyout server-key.pem -newkey rsa:4096

Now the certificate request is signed with the generated CA certificate.

3. openssl x509 -req -days 365 -CA root-cacert.pem -CAkey root-cakey.pem -CAcreateserial -in server-csr.pem -out server-cert.pem

The generated certificate must be exported to a .pfx file that can be imported into the IIS.

4. openssl pkcs12 -export -out server-cert.pfx -inkey server-key.pem -in server-cert.pem -certfile root-cacert.pem -name "Self Signed Server Certificate"

In this step we will import the certificate CA.

5. In your server must import the CA certificate to the Trusted Root Certification Authorities, for IIS can trust the certificate to be imported. Remember that the certificate to be imported into the IIS, has been signed with the certificate of the CA.

   • Open Command Prompt and type mmc.
   • Click on File.
   • Select Add/Remove Snap in....
   • Double click on Certificates.
   • Select Computer Account and Next ->.
   • Select Local Computer and Finish.
   • Ok.
   • Go to Certificates -> Trusted Root Certification Authorities -> Certificates, rigth click on Certificates and select All Tasks -> Import ...

• Select Next -> Browse ...
• You must select All Files to browse the location of root-cacert.pem file.
• Click on Next and select Place all certificates in the following store: Trusted Root Certification Authorities.
• Click on Next and Finish.

With this step, the IIS trust on the authenticity of our certificate.

6. In our last step we will import the certificate to IIS and add the binding site.

   • Open Internet Information Services (IIS) Manager or type inetmgr on command prompt and go to Server Certificates.
   • Click on Import....
   • Set the path of .pfx file, the passphrase and Select certificate store on Web Hosting.

• Click on OK.

• Now go to your site on IIS Manager and select Bindings... and Add a new binding.

• Select https as the type of binding and you should be able to see the imported certificate.

• Click on OK and all is done.

I write a method to show the four corners of the data and monkey-patch to dataframe to do so:

def _sw(df, up_rows=10, down_rows=5, left_cols=4, right_cols=3, return_df=False):
    ''' display df data at four corners
        A,B (up_pt)
        C,D (down_pt)
        parameters : up_rows=10, down_rows=5, left_cols=4, right_cols=3
        usage:
            df = pd.DataFrame(np.random.randn(20,10), columns=list('ABCDEFGHIJKLMN')[0:10])
            df.sw(5,2,3,2)
            df1 = df.set_index(['A','B'], drop=True, inplace=False)
            df1.sw(5,2,3,2)
    '''
    #pd.set_printoptions(max_columns = 80, max_rows = 40)
    ncol, nrow = len(df.columns), len(df)

    # handle columns
    if ncol <= (left_cols + right_cols) :
        up_pt = df.ix[0:up_rows, :]         # screen width can contain all columns
        down_pt = df.ix[-down_rows:, :]
    else:                                   # screen width can not contain all columns
        pt_a = df.ix[0:up_rows,  0:left_cols]
        pt_b = df.ix[0:up_rows,  -right_cols:]
        pt_c = df[-down_rows:].ix[:,0:left_cols]
        pt_d = df[-down_rows:].ix[:,-right_cols:]

        up_pt   = pt_a.join(pt_b, how='inner')
        down_pt = pt_c.join(pt_d, how='inner')
        up_pt.insert(left_cols, '..', '..')
        down_pt.insert(left_cols, '..', '..')

    overlap_qty = len(up_pt) + len(down_pt) - len(df)
    down_pt = down_pt.drop(down_pt.index[range(overlap_qty)]) # remove overlap rows

    dt_str_list = down_pt.to_string().split('\n') # transfer down_pt to string list

    # Display up part data
    print up_pt

    start_row = (1 if df.index.names[0] is None else 2) # start from 1 if without index

    # Display omit line if screen height is not enought to display all rows
    if overlap_qty < 0:
        print "." * len(dt_str_list[start_row])

    # Display down part data row by row
    for line in dt_str_list[start_row:]:
        print line

    # Display foot note
    print "\n"
    print "Index :",df.index.names
    print "Column:",",".join(list(df.columns.values))
    print "row: %d    col: %d"%(len(df), len(df.columns))
    print "\n"

    return (df if return_df else None)
DataFrame.sw = _sw  #add a method to DataFrame class

Here is the sample:

>>> df = pd.DataFrame(np.random.randn(20,10), columns=list('ABCDEFGHIJKLMN')[0:10])

>>> df.sw()
         A       B       C       D  ..       H       I       J
0  -0.8166  0.0102  0.0215 -0.0307  .. -0.0820  1.2727  0.6395
1   1.0659 -1.0102 -1.3960  0.4700  ..  1.0999  1.1222 -1.2476
2   0.4347  1.5423  0.5710 -0.5439  ..  0.2491 -0.0725  2.0645
3  -1.5952 -1.4959  2.2697 -1.1004  .. -1.9614  0.6488 -0.6190
4  -1.4426 -0.8622  0.0942 -0.1977  .. -0.7802 -1.1774  1.9682
5   1.2526 -0.2694  0.4841 -0.7568  ..  0.2481  0.3608 -0.7342
6   0.2108  2.5181  1.3631  0.4375  .. -0.1266  1.0572  0.3654
7  -1.0617 -0.4743 -1.7399 -1.4123  .. -1.0398 -1.4703 -0.9466
8  -0.5682 -1.3323 -0.6992  1.7737  ..  0.6152  0.9269  2.1854
9   0.2361  0.4873 -1.1278 -0.2251  ..  1.4232  2.1212  2.9180
10  2.0034  0.5454 -2.6337  0.1556  ..  0.0016 -1.6128 -0.8093
..............................................................
15  1.4091  0.3540 -1.3498 -1.0490  ..  0.9328  0.3668  1.3948
16  0.4528 -0.3183  0.4308 -0.1818  ..  0.1295  1.2268  0.1365
17 -0.7093  1.3991  0.9501  2.1227  .. -1.5296  1.1908  0.0318
18  1.7101  0.5962  0.8948  1.5606  .. -0.6862  0.9558 -0.5514
19  1.0329 -1.2308 -0.6896 -0.5112  ..  0.2719  1.1478 -0.1459


Index : [None]
Column: A,B,C,D,E,F,G,H,I,J
row: 20    col: 10


>>> df.sw(4,2,3,4)
        A       B       C  ..       G       H       I       J
0 -0.8166  0.0102  0.0215  ..  0.3671 -0.0820  1.2727  0.6395
1  1.0659 -1.0102 -1.3960  ..  1.0984  1.0999  1.1222 -1.2476
2  0.4347  1.5423  0.5710  ..  1.6675  0.2491 -0.0725  2.0645
3 -1.5952 -1.4959  2.2697  ..  0.4856 -1.9614  0.6488 -0.6190
4 -1.4426 -0.8622  0.0942  .. -0.0947 -0.7802 -1.1774  1.9682
..............................................................
18  1.7101  0.5962  0.8948  .. -0.8592 -0.6862  0.9558 -0.5514
19  1.0329 -1.2308 -0.6896  .. -0.3954  0.2719  1.1478 -0.1459


Index : [None]
Column: A,B,C,D,E,F,G,H,I,J
row: 20    col: 10

retval.Direction = ParameterDirection.Output;

ParameterDirection.ReturnValue should be used for the "return value" of the procedure, not output parameters. It gets the value returned by the SQL RETURN statement (with the parameter named @RETURN_VALUE).

Instead of RETURN @b you should SET @b = something

By the way, return value parameter is always int, not string.

I use the following way to handle the many-to-many relationship where only foreign keys are involved.

So for inserting:

public void InsertStudentClass (long studentId, long classId)
{
    using (var context = new DatabaseContext())
    {
        Student student = new Student { StudentID = studentId };
        context.Students.Add(student);
        context.Students.Attach(student);

        Class class = new Class { ClassID = classId };
        context.Classes.Add(class);
        context.Classes.Attach(class);

        student.Classes = new List<Class>();
        student.Classes.Add(class);

        context.SaveChanges();
    }
}

For deleting,

public void DeleteStudentClass(long studentId, long classId)
{
    Student student = context.Students.Include(x => x.Classes).Single(x => x.StudentID == studentId);

    using (var context = new DatabaseContext())
    {
        context.Students.Attach(student);
        Class classToDelete = student.Classes.Find(x => x.ClassID == classId);
        if (classToDelete != null)
        {
            student.Classes.Remove(classToDelete);
            context.SaveChanges();
        }
    }
}

I think it's quite dangerous to rely on the order of the values in a enum and to assume that the first is always the default. This would be good practice if you are concerned about protecting the default value.

enum E
{
    Foo = 0, Bar, Baz, Quux
}

Otherwise, all it takes is a careless refactor of the order and you've got a completely different default.

The solution is very simple if we consider the type of the constant value, which should be "unsigned int" instead of "int".

Instead of:

setval(0)

Use:

setval(0u)

The suffix "u" tell the compiler this is a unsigned integer. Then, no conversion would be needed, and the call will be unambiguous.

Surprisingly no one told about this, which provides some !clarity:

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