If you want to automatically stash your changes and unstash them for every rebase, you can do this:

git config --global rebase.autoStash true

hg status will show you all the new files, and then you can just rm them.

Normally I want to get rid of ignored and unversioned files, so:

hg status -iu                          # to show 
hg status -iun0 | xargs -r0 rm         # to destroy

And then follow that with:

hg update -C -r xxxxx

which puts all the versioned files in the right state for revision xxxx

To follow the Stack Overflow tradition of telling you that you don't want to do this, I often find that this "Nuclear Option" has destroyed stuff I care about.

The right way to do it is to have a 'make clean' option in your build process, and maybe a 'make reallyclean' and 'make distclean' too.

From your feature branch (e.g configUpdate) run:

git fetch
git rebase origin/master

Or the shorter form:

git pull --rebase

Why this works:

• git merge branchname takes new commits from the branch branchname, and adds them to the current branch. If necessary, it automatically adds a "Merge" commit on top.

• git rebase branchname takes new commits from the branch branchname, and inserts them "under" your changes. More precisely, it modifies the history of the current branch such that it is based on the tip of branchname, with any changes you made on top of that.

• git pull is basically the same as git fetch; git merge origin/master.

• git pull --rebase is basically the same as git fetch; git rebase origin/master.

So why would you want to use git pull --rebase rather than git pull? Here's a simple example:

• You start working on a new feature.

• By the time you're ready to push your changes, several commits have been pushed by other developers.

• If you git pull (which uses merge), your changes will be buried by the new commits, in addition to an automatically-created merge commit.

• If you git pull --rebase instead, git will fast forward your master to upstream's, then apply your changes on top.

Note: this answer is only valid for git v1.8 and older.

Most of this has been said in the other answers and comments, but here's a concise explanation:

• git fetch fetches all branch heads (or all specified by the remote.fetch config option), all commits necessary for them, and all tags which are reachable from these branches. In most cases, all tags are reachable in this way.
• git fetch --tags fetches all tags, all commits necessary for them. It will not update branch heads, even if they are reachable from the tags which were fetched.

Summary: If you really want to be totally up to date, using only fetch, you must do both.

It's also not "twice as slow" unless you mean in terms of typing on the command-line, in which case aliases solve your problem. There is essentially no overhead in making the two requests, since they are asking for different information.

Try this, it worked for me. In your terminal: git remote prune origin.

Tried and tested this works !

mkdir <directory name> ;  //Same directory name as the one you want to pull
cd <directory name>;
git remote add origin <GIT_URL>;
git checkout -b '<branch name>';
git config core.sparsecheckout true;
echo <directory name>/ >> .git/info/sparse-checkout;
git pull origin <pull branch name>

Hope this was helpful!

In my case I had a dual-boot system (Windows 10 and Linux) with project folder on NTFS disk. It turned out that on another update Windows 10 enabled by itself "fast startup" in its settings. After I've unchecked it in the Windows - the "error: cannot open .git/FETCH_HEAD: Permission denied" in Linux was gone.

You can edit the ~/.gitconfig file in your home folder. This is where all --global settings are saved.

Or, use git config --global --unset-all remote.origin.url and after run git fetch with repository url.

This helped me to get remote branch before merging it into other:

git fetch repo xyz:xyz
git checkout xyz

This answer aims to force an image pull in a situation where your node has already downloaded an image with the same name, therefore even though you push a new image to container registry, when you spin up some pods, your pod says "image already present".

For a case in Azure Container Registry (probably AWS and GCP also provides this):

1. You can look to your Azure Container Registry and by checking the manifest creation date you can identify what image is the most recent one.

2. Then, copy its digest hash (which has a format of sha256:xxx...xxx).

3. You can scale down your current replica by running command below. Note that this will obviously stop your container and cause downtime.

kubectl scale --replicas=0 deployment <deployment-name> -n <namespace-name>

4. Then you can get the copy of the deployment.yaml by running:

kubectl get deployments.apps <deployment-name> -o yaml > deployment.yaml

5. Then change the line with image field from <image-name>:<tag> to <image-name>@sha256:xxx...xxx, save the file.

6. Now you can scale up your replicas again. New image will be pulled with its unique digest.

Note: It is assumed that, imagePullPolicy: Always field is present in the container.

git pull origin master --allow-unrelated-histories

You might want to use this if your histories doesnt match and want to merge it anyway..

refer here

This worked for me.

git reset --hard ORIG_HEAD 

Undo a merge or pull:

$ git pull                         (1)
Auto-merging nitfol
CONFLICT (content): Merge conflict in nitfol
Automatic merge failed; fix conflicts and then commit the result.
$ git reset --hard                 (2)
$ git pull . topic/branch          (3)
Updating from 41223... to 13134...
Fast-forward
$ git reset --hard ORIG_HEAD       (4)

Checkout this: HEAD and ORIG_HEAD in Git for more.

clone: copying the remote server repository to your local machine.

pull: get new changes other have added to your local machine.

This is the difference.

Clone is generally used to get remote repo copy.

Pull is used to view other team mates added code, if you are working in teams.

unsigned int
randr(unsigned int min, unsigned int max)
{
       double scaled = (double)rand()/RAND_MAX;

       return (max - min +1)*scaled + min;
}

See here for other options.

Website URL:

http://www.example.com/?id=2

Code:

$id = intval($_GET['id']);
$results = mysql_query("SELECT * FROM next WHERE id=$id");    
while ($row = mysql_fetch_array($results))     
{       
    $url = $row['url'];
    echo $url; //Outputs: 2
}

I use the latest version of SSMS or sql server management studio. I have a SQL script (in query editor) which has about 100 lines of code. This is error I got in the query:

Msg 245, Level 16, State 1, Line 2
Conversion failed when converting the nvarchar value 'abcd' to data type int.

Solution - I had seen this kind of error before when I forgot to enclose a number (in varchar column) in single quotes.

As an aside, the error message is misleading. The actual error on line number 70 in the query editor and not line 2 as the error says!

I found paramiko to be a bit too low-level, and Fabric not especially well-suited to being used as a library, so I put together my own library called spur that uses paramiko to implement a slightly nicer interface:

import spur

shell = spur.SshShell(hostname="localhost", username="bob", password="password1")
result = shell.run(["echo", "-n", "hello"])
print result.output # prints hello

If you need to run inside a shell:

shell.run(["sh", "-c", "echo -n hello"])

Supervised learning:

A supervised learning algorithm analyzes the training data and produces an inferred function, which can be used for mapping new examples.

1. We provide training data and we know correct output for a certain input
2. We know relation between input and output

Categories of problem:

Regression: Predict results within a continuous output => map input variables to some continuous function.

Example:

Given a picture of a person, predict his age

Classification: Predict results in a discrete output => map input variables into discrete categories

Example:

Is this tumer cancerous?

Unsupervised learning:

Unsupervised learning learns from test data that has not been labeled, classified or categorized. Unsupervised learning identifies commonalities in the data and reacts based on the presence or absence of such commonalities in each new piece of data.

1. We can derive this structure by clustering the data based on relationships among the variables in the data.

2. There is no feedback based on the prediction results.

Categories of problem:

Clustering: is the task of grouping a set of objects in such a way that objects in the same group (called a cluster) are more similar (in some sense) to each other than to those in other groups (clusters)

Example:

Take a collection of 1,000,000 different genes, and find a way to automatically group these genes into groups that are somehow similar or related by different variables, such as lifespan, location, roles, and so on.

Popular use cases are listed here.

Difference between classification and clustering in data mining?

References:

Supervised_learning

Unsupervised_learning

machine-learning from coursera

towardsdatascience

Here are tests for a few methods:

%timeit np.where(np.isnan(df['b']))[0]
%timeit pd.isnull(df['b']).nonzero()[0]
%timeit np.where(df['b'].isna())[0]
%timeit df.loc[pd.isna(df['b']), :].index

And their corresponding timings:

333 µs ± 9.95 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)
280 µs ± 220 ns per loop (mean ± std. dev. of 7 runs, 1000 loops each)
313 µs ± 128 ns per loop (mean ± std. dev. of 7 runs, 1000 loops each)
6.84 ms ± 1.59 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)

It would appear that pd.isnull(df['DRGWeight']).nonzero()[0] wins the day in terms of timing, but that any of the top three methods have comparable performance.

What does the trick for me is:

1) Right click on wwwroot > Add > Client Side Library

2) Typed "bootstrap" on the search box

3) Select "Choose specific files"

4) Scroll down and select a folder. In my case I chose "twitter-bootstrap"

5) Check "css" and "js"

6) Click "Install".

A few seconds later I have all of them wwwroot folder. Do the same for all client side packages that you want to add.

After trying everything on the web for my issue, I needed to add in a small delay to the script before trying to load the box.

Even though I had put the line to load the box on the last possible line in the entire script. I just put a 500ms delay on it using

setTimeout(() => {  $('#modalID').modal('show'); }, 500);

Hope that helps someone in the future. 100% agree it's prob because I don't understand the flow of my scripts and load order. But this is the way I got around it

If you want to use justify align in Jupyter Notebook use the following syntax:

<p style='text-align: justify;'> Your Text </p>

For right alignment:

<p style='text-align: right;'> Your Text </p>

LocalDateTime does not contain Zone information. ZonedDatetime does.

If you want to convert LocalDateTime to UTC, you need to wrap by ZonedDateTime fist.

You can convert like the below.

LocalDateTime ldt = LocalDateTime.now();
System.out.println(ldt.toLocalTime());

ZonedDateTime ldtZoned = ldt.atZone(ZoneId.systemDefault());

ZonedDateTime utcZoned = ldtZoned.withZoneSameInstant(ZoneId.of("UTC"));

System.out.println(utcZoned.toLocalTime());

Methods can only declare local variables. That is why the compiler reports an error when you try to declare it as public.

In the case of local variables you can not use any kind of accessor (public, protected or private).

You should also know what the static keyword means. In method checkYourself, you use the Integer array locations.

The static keyword distinct the elements that are accessible with object creation. Therefore they are not part of the object itself.

public class Test { //Capitalized name for classes are used in Java
   private final init[] locations; //key final mean that, is must be assigned before object is constructed and can not be changed later. 

   public Test(int[] locations) {
      this.locations = locations;//To access to class member, when method argument has the same name use `this` key word. 
   }

   public boolean checkYourSelf(int value) { //This method is accessed only from a object.
      for(int location : locations) {
         if(location == value) {
            return true; //When you use key word return insied of loop you exit from it. In this case you exit also from whole method.
         }
      }
      return false; //Method should be simple and perform one task. So you can get more flexibility. 
   }
   public static int[] locations = {1,2,3};//This is static array that is not part of object, but can be used in it. 

   public static void main(String[] args) { //This is declaration of public method that is not part of create object. It can be accessed from every place.
      Test test = new Test(Test.locations); //We declare variable test, and create new instance (object) of class Test.  
      String result;
      if(test.checkYourSelf(2)) {//We moved outside the string
        result = "Hurray";        
      } else {
        result = "Try again"
      }
      System.out.println(result); //We have only one place where write is done. Easy to change in future.
   } 
}

This errors says your function is already defined ; which can mean :

• you have the same function defined in two files
• or you have the same function defined in two places in the same file
• or the file in which your function is defined is included two times (so, it seems the function is defined two times)

To help with the third point, a solution would be to use include_once instead of include when including your functions.php file -- so it cannot be included more than once.

Try out this url it is work for me

http://127.0.0.1:8080/apex/f?p=4950:1:1615033681376854

1. Windows->Services and restarted some of services(OracleJobSchedulerXE,OracleMTSRecoveryService,OracleServiceXE,OracleXEClrAgent,OracleXETNSListener) and it works for me.enter image description here

I prefer to rely on libraries whenever possible for this sort of operation. This makes me less likely to accidentally omit an important step (like mistake wolfsnipes made above). Some libraries are suggested above, but my favorite for this kind of thing is Google Guava. Guava has a class called Files which works nicely for this task:

// This is where the file goes.
File destination = new File("file.txt");
// This line isn't needed, but is really useful 
// if you're a beginner and don't know where your file is going to end up.
System.out.println(destination.getAbsolutePath());
try {
    Files.write(text, destination, Charset.forName("UTF-8"));
} catch (IOException e) {
    // Useful error handling here
}

This will prevent browser from auto playing audio.

HTML

<audio type="audio/wav" id="audio" autoplay="false" autostart="false"></audio>

jQuery

$('#audio').attr("src","path_to_audio.wav");
$('#audio').play();

The example provided by Mykhaylo Adamovych is very thorough and exposes most of the major features of JSch. I packaged this code (with attribution, of course) into an open-source library called Remote Session. I added JavaDoc and custom exceptions, and I also provided a facility to specify custom session parameters (RemoteConfig).

One feature that Mykhaylo's code doesn't demonstrate is how to provide an "identity" for remote system interactions. This is critical if you're going to execute commands that require super-user access (i.e. - sudo). Remote Session adds this capability in its SessionHolder.newSession() implementation:

RemoteConfig remoteConfig = RemoteConfig.getConfig();
Path keyPath = remoteConfig.getKeyPath();

if (keyPath == null) {
    throw new RemoteCredentialsUnspecifiedException();
}

String keyPass = remoteConfig.getString(RemoteSettings.SSH_KEY_PASS.key());
if (keyPass != null) {
    Path pubPath = keyPath.resolveSibling(keyPath.getFileName() + ".pub");
    jsch.addIdentity(keyPath.toString(), pubPath.toString(), keyPass.getBytes());
} else {
    jsch.addIdentity(keyPath.toString());
}

Note that this behavior is bypassed if the remote system URL includes credentials.

Another feature that Remote Session demonstrates is how to provide a known-hosts file:

if ( ! remoteConfig.getBoolean(RemoteSettings.IGNORE_KNOWN_HOSTS.key())) {
    Path knownHosts = keyPath.resolveSibling("known_hosts");
    if (knownHosts.toFile().exists()) {
        jsch.setKnownHosts(knownHosts.toString());
    }
}

Remote Session also adds a ChannelStream class that encapsulates input/output operation for the channel attached to this session. This provides the ability to accumulate the output from the remote session until a specified prompt is received:

private boolean appendAndCheckFor(String prompt, StringBuilder input, Logger logger) throws InterruptedException, IOException {
    String recv = readChannel(false);
    if ( ! ((recv == null) || recv.isEmpty())) {
        input.append(recv);
        if (logger != null) {
            logger.debug(recv);
        }
        if (input.toString().contains(prompt)) {
            return false;
        }
    }
    return !channel.isClosed();
}

Nothing too complicated, but this can greatly simplify the implementation of interactive remote operations.

I can offer only an example of the layout solution already pointed out.

layout(matrix(c(1,2), nrow = 1), widths = c(0.7, 0.3))
par(mar = c(5, 4, 4, 2) + 0.1)
plot(1:3, rnorm(3), pch = 1, lty = 1, type = "o", ylim=c(-2,2))
lines(1:3, rnorm(3), pch = 2, lty = 2, type="o")
par(mar = c(5, 0, 4, 2) + 0.1)
plot(1:3, rnorm(3), pch = 1, lty = 1, ylim=c(-2,2), type = "n", axes = FALSE, ann = FALSE)
legend(1, 1, c("group A", "group B"), pch = c(1,2), lty = c(1,2))

This is also MySQL Specific:

show fields from [tablename];

this doesnt just show the table names but it also pulls out all the info about the fields.

if you have already pushed your commit then. do

git checkout origin/<remote-branch> <filename>
git commit --amend

AND If you have not pushed the changes on the server you can use

git reset --soft HEAD~1

One of the most common reasons I see that error is when I am trying to display an alert dialog or progress dialog in an activity that is not in the foreground. Like when a background thread that displays a dialog box is running in a paused activity.

If you have ES9

(Meaning if your system: Chrome, Node.js, Firefox, etc supports Ecmascript 2019 or later)

Use the new yourString.matchAll( /your-regex/ ).

If you don't have ES9

If you have an older system, here's a function for easy copy and pasting

function findAll(regexPattern, sourceString) {
    let output = []
    let match
    // make sure the pattern has the global flag
    let regexPatternWithGlobal = RegExp(regexPattern,[...new Set("g"+regexPattern.flags)].join(""))
    while (match = regexPatternWithGlobal.exec(sourceString)) {
        // get rid of the string copy
        delete match.input
        // store the match data
        output.push(match)
    } 
    return output
}

example usage:

console.log(   findAll(/blah/g,'blah1 blah2')   ) 

outputs:

[ [ 'blah', index: 0 ], [ 'blah', index: 6 ] ]

There are two ways to do this. First is like this:

while True:             # Loop continuously
    inp = raw_input()   # Get the input
    if inp == "":       # If it is a blank line...
        break           # ...break the loop

The second is like this:

inp = raw_input()       # Get the input
while inp != "":        # Loop until it is a blank line
    inp = raw_input()   # Get the input again

Note that if you are on Python 3.x, you will need to replace raw_input with input.

From the man git-stash page:

The modifications stashed away by this command can be listed with git stash list, inspected with git stash show

show [<stash>]
       Show the changes recorded in the stash as a diff between the stashed state and
       its original parent. When no <stash> is given, shows the latest one. By default,
       the command shows the diffstat, but it will accept any format known to git diff
       (e.g., git stash show -p stash@{1} to view the second most recent stash in patch
       form).

To list the stashed modifications

git stash list

To show files changed in the last stash

git stash show

So, to view the content of the most recent stash, run

git stash show -p

To view the content of an arbitrary stash, run something like

git stash show -p stash@{1}

You can have both TortoiseSVN and the Apache Subversion command line tools installed. I usually install the Apache SVN tools from the VisualSVN download site: https://www.visualsvn.com/downloads/

Once installed, place the Subversion\bin in your set PATH. Then you will be able to use TortoiseSVN when you want to use the GUI, and you have the proper SVN command line tools to use from the command line.

Make a truth table and use SUMPRODUCT to get the values. Copy this into cell B1 on Sheet2 and copy down as far as you need:
=SUMPRODUCT(--($A1 = Sheet1!$A:$A), Sheet1!$B:$B)
the part that creates the truth table is:
--($A1 = Sheet1!$A:$A)
This returns an array of 0's and 1's. 1 when the values match and a 0 when they don't. Then the comma after that will basically do what I call "funny" matrix multiplication and will return the result. I may have misunderstood your question though, are there duplicate values in Column A of Sheet1?

Your problem is those pernicious double quotes.

SQL> CREATE TABLE "APC"."PS_TBL_DEPARTMENT_DETAILS"
  2  (
  3    "Company Code" VARCHAR2(255),
  4    "Company Name" VARCHAR2(255),
  5    "Sector_Code" VARCHAR2(255),
  6    "Sector_Name" VARCHAR2(255),
  7    "Business_Unit_Code" VARCHAR2(255),
  8    "Business_Unit_Name" VARCHAR2(255),
  9    "Department_Code" VARCHAR2(255),
 10    "Department_Name" VARCHAR2(255),
 11    "HR_ORG_ID" VARCHAR2(255),
 12    "HR_ORG_Name" VARCHAR2(255),
 13    "Cost_Center_Number" VARCHAR2(255),
 14    " " VARCHAR2(255)
 15  )
 16  /

Table created.

SQL>

Oracle SQL allows us to ignore the case of database object names provided we either create them with names all in upper case, or without using double quotes. If we use mixed case or lower case in the script and wrapped the identifiers in double quotes we are condemned to using double quotes and the precise case whenever we refer to the object or its attributes:

SQL> select count(*) from PS_TBL_DEPARTMENT_DETAILS
  2  where Department_Code = 'BAH'
  3  /
where Department_Code = 'BAH'
      *
ERROR at line 2:
ORA-00904: "DEPARTMENT_CODE": invalid identifier


SQL> select count(*) from PS_TBL_DEPARTMENT_DETAILS
  2  where "Department_Code" = 'BAH'
  3  /

  COUNT(*)
----------
         0

SQL>

tl;dr

don't use double quotes in DDL scripts

(I know most third party code generators do, but they are disciplined enough to put all their object names in UPPER CASE.)

The reverse is also true. If we create the table without using double-quotes …

create table PS_TBL_DEPARTMENT_DETAILS
( company_code VARCHAR2(255),
  company_name VARCHAR2(255),
  Cost_Center_Number VARCHAR2(255))
;

… we can reference it and its columns in whatever case takes our fancy:

select * from ps_tbl_department_details

… or

select * from PS_TBL_DEPARTMENT_DETAILS;

… or

select * from PS_Tbl_Department_Details
where COMAPNY_CODE = 'ORCL'
and cost_center_number = '0980'

For passing a single integer I agree with Reed Copsey's answer. If in the future you are going to pass more complicated constucts I personally like to pass all my variables as an Anonymous Type. It will look something like this:

foreach(int id in myIdsToCheck)
{
    Task.Factory.StartNew( (Object obj) => 
        {
           var data = (dynamic)obj;
           CheckFiles(data.id, theBlockingCollection,
               cancelCheckFile.Token, 
               TaskCreationOptions.LongRunning, 
               TaskScheduler.Default);
        }, new { id = id }); // Parameter value
}

You can learn more about it in my blog

• Navigate to Control Panel > Programs > Programs and Features and repair the IIS Express.
• Restart the visual studio.

To turn on the IIS is not recommended as other comments suggests if you are not using your system as a live server. For development purpose only IIS Express is adequate.

Python 3.6.8

from more_itertools import pairwise

class AssertionHelper:
    @classmethod
    def is_ascending(cls, data: iter) -> bool:
        for a, b in pairwise(data):
            if a > b:
                return False
        return True

    @classmethod
    def is_descending(cls, data: iter) -> bool:
        for a, b in pairwise(data):
            if a < b:
                return False
        return True

    @classmethod
    def is_sorted(cls, data: iter) -> bool:
        return cls.is_ascending(data) or cls.is_descending(data)

>>> AssertionHelper.is_descending((1, 2, 3, 4))
False
>>> AssertionHelper.is_ascending((1, 2, 3, 4))
True
>>> AssertionHelper.is_sorted((1, 2, 3, 4))
True

To get the actual scrollable height of the areas scrolled by the window scrollbar, I used $('body').prop('scrollHeight'). This seems to be the simplest working solution, but I haven't checked extensively for compatibility. Emanuele Del Grande notes on another solution that this probably won't work for IE below 8.

Most of the other solutions work fine for scrollable elements, but this works for the whole window. Notably, I had the same issue as Michael for Ankit's solution, namely, that $(document).prop('scrollHeight') is returning undefined.

Hash tables have higher constants than common map implementations, which become significant for small containers. Max size is 10, 100, or maybe even 1,000 or more? Constants are the same as ever, but O(log n) is close to O(k). (Remember logarithmic complexity is still really good.)

What makes a good hash function depends on your data's characteristics; so if I don't plan on looking at a custom hash function (but can certainly change my mind later, and easily since I typedef damn near everything) and even though defaults are chosen to perform decently for many data sources, I find the ordered nature of map to be enough of a help initially that I still default to map rather than a hash table in that case.

Plus that way you don't have to even think about writing a hash function for other (usually UDT) types, and just write op< (which you want anyway).

I am adding this answer for others who are still seeking a solution to this problem if you don't want to upload your app on playstore then temporarily there is a workaround for this problem.

Google is providing safety device verification api which you need to call only once in your application and after that your application will not be blocked by play protect:

Here are there the links:

https://developer.android.com/training/safetynet/attestation#verify-attestation-response

Link for sample code project:

https://github.com/googlesamples/android-play-safetynet

To add multiple columns and rows, we can also do a string concatenation. Not the best way, but it sure works.

             var resultstring='<table>';
      for(var j=0;j<arr.length;j++){
              //array arr contains the field names in this case
          resultstring+= '<th>'+ arr[j] + '</th>';
      }
      $(resultset).each(function(i, result) {
          // resultset is in json format
          resultstring+='<tr>';
          for(var j=0;j<arr.length;j++){
              resultstring+='<td>'+ result[arr[j]]+ '</td>';
          }
          resultstring+='</tr>';
      });
      resultstring+='</table>';
          $('#resultdisplay').html(resultstring);

This also allows you to add rows and columns to the table dynamically, without hardcoding the fieldnames.

Define in wp_config file.

/var/www/html/Your-Project-File/wp-config.php

define( 'FS_METHOD', 'direct' );

chown - changes ownership of files/dirs. Ie. owner of the file/dir changes to the specified one, but it doesn't modify permissions.

sudo chown -R www-data:www-data /var/www

The easiest single-line solution is to use

return new HttpResponseMessage( HttpStatusCode.OK ) {Content =  new StringContent( "Your message here" ) };

For serialized JSON content:

return new HttpResponseMessage( HttpStatusCode.OK ) {Content =  new StringContent( SerializedString, System.Text.Encoding.UTF8, "application/json" ) };

You can use rjust and ljust functions to add specific characters before or after a string to reach a specific length.

numStr = '69' 
numStr = numStr.rjust(5, '*')

The result is 69*****

And for the left:

numStr = '69' 
numStr = numStr.ljust(3, '#')

The result will be ###69

Also to add zeros you can simply use:

numstr.zfill(8)

Which gives you 69000000 as the result.

A lot of good answers but why not just use JSON.stringify(your_variable) ? Then take the contents via copy and paste (remove outer quotes). I posted this same answer also at: How to save the output of a console.log(object) to a file?

You can use generic code inspection via instanceof:

var e = document.getElementById('#my-element');
if (e instanceof HTMLInputElement) {}         // <input>
elseif (e instanceof HTMLSelectElement) {}    // <select>
elseif (e instanceof HTMLTextAreaElement) {}  // <textarea>
elseif (  ... ) {}                            // any interface

Look here for a complete list of interfaces.

User java.nio.Files to read all lines of file.

public String readFile() throws IOException {
        File fileToRead = new File("file path");
        List<String> fileLines = Files.readAllLines(fileToRead.toPath());
        return StringUtils.join(fileLines, StringUtils.EMPTY);
}

Shortest way:

(new Image()).src = "http:/track.me/image.gif";

One general way to construct set in iterative way like this:

aset = {e for e in alist}

Below query will help to find postgres configuration file.

postgres=# SHOW config_file;
             config_file
-------------------------------------
 /var/lib/pgsql/data/postgresql.conf
(1 row)

[root@node1 usr]# cd /var/lib/pgsql/data/
[root@node1 data]# ls -lrth
total 48K
-rw------- 1 postgres postgres    4 Nov 25 13:58 PG_VERSION
drwx------ 2 postgres postgres    6 Nov 25 13:58 pg_twophase
drwx------ 2 postgres postgres    6 Nov 25 13:58 pg_tblspc
drwx------ 2 postgres postgres    6 Nov 25 13:58 pg_snapshots
drwx------ 2 postgres postgres    6 Nov 25 13:58 pg_serial
drwx------ 4 postgres postgres   36 Nov 25 13:58 pg_multixact
-rw------- 1 postgres postgres  20K Nov 25 13:58 postgresql.conf
-rw------- 1 postgres postgres 1.6K Nov 25 13:58 pg_ident.conf
-rw------- 1 postgres postgres 4.2K Nov 25 13:58 pg_hba.conf
drwx------ 3 postgres postgres   60 Nov 25 13:58 pg_xlog
drwx------ 2 postgres postgres   18 Nov 25 13:58 pg_subtrans
drwx------ 2 postgres postgres   18 Nov 25 13:58 pg_clog
drwx------ 5 postgres postgres   41 Nov 25 13:58 base
-rw------- 1 postgres postgres   92 Nov 25 14:00 postmaster.pid
drwx------ 2 postgres postgres   18 Nov 25 14:00 pg_notify
-rw------- 1 postgres postgres   57 Nov 25 14:00 postmaster.opts
drwx------ 2 postgres postgres   32 Nov 25 14:00 pg_log
drwx------ 2 postgres postgres 4.0K Nov 25 14:00 global
drwx------ 2 postgres postgres   25 Nov 25 14:20 pg_stat_tmp

The if statements in your example are unnecessary. Just do it like this:

dosomething1 || exit 1

If you take Ville Laurikari's advice and use set -e then for some commands you may need to use this:

dosomething || true

The || true will make the command pipeline have a true return value even if the command fails so the the -e option will not kill the script.

1. Java provides lot of things with proper implementation lot of complexity can be avoided. This returns ms_MY.

   String key = "ms-MY";
   Locale locale = new Locale.Builder().setLanguageTag(key).build();
   

2. Apache Commons has LocaleUtils to help parse a string representation. This will return en_US

   String str = "en-US";
   Locale locale =  LocaleUtils.toLocale(str);
   System.out.println(locale.toString());
   

3. You can also use locale constructors.

   // Construct a locale from a language code.(eg: en)
   new Locale(String language)
   // Construct a locale from language and country.(eg: en and US)
   new Locale(String language, String country)
   // Construct a locale from language, country and variant.
   new Locale(String language, String country, String variant)
   

Please check this LocaleUtils and this Locale to explore more methods.

function getFileExtension(filename)
{
  var ext = /^.+\.([^.]+)$/.exec(filename);
  return ext == null ? "" : ext[1];
}

Tested with

"a.b"     (=> "b") 
"a"       (=> "") 
".hidden" (=> "") 
""        (=> "") 
null      (=> "")  

Also

"a.b.c.d" (=> "d")
".a.b"    (=> "b")
"a..b"    (=> "b")

Here's the code by Sinetheta converted to a jQuery plugin: Save below code to a js file.

$.fn.collapsible = function() {
    $(this).addClass("ui-accordion ui-widget ui-helper-reset");
    var headers = $(this).children("h3");
    headers.addClass("accordion-header ui-accordion-header ui-helper-reset ui-state-active ui-accordion-icons ui-corner-all");
    headers.append('<span class="ui-accordion-header-icon ui-icon ui-icon-triangle-1-s">');
    headers.click(function() {
        var header = $(this);
        var panel = $(this).next();
        var isOpen = panel.is(":visible");
        if(isOpen)  {
            panel.slideUp("fast", function() {
                panel.hide();
                header.removeClass("ui-state-active")
                    .addClass("ui-state-default")
                    .children("span").removeClass("ui-icon-triangle-1-s")
                        .addClass("ui-icon-triangle-1-e");
          });
        }
        else {
            panel.slideDown("fast", function() {
                panel.show();
                header.removeClass("ui-state-default")
                    .addClass("ui-state-active")
                    .children("span").removeClass("ui-icon-triangle-1-e")
                        .addClass("ui-icon-triangle-1-s");
          });
        }
    });
}; 

Refer it in your UI page and call similar to jQuery accordian call:

$("#accordion").collapsible(); 

Looks cleaner and avoids any classes to be added to the markup.

I think you will have fewer problems if you declared a Property that implements INotifyPropertyChanged, then databind IsChecked, SelectedIndex(using IValueConverter) and Fill(using IValueConverter) to it instead of using the Checked Event to toggle SelectedIndex and Fill.

Credit should go here: how to detect if a link was clicked when window.onbeforeunload is triggered?

Basically, the solution adds a listener to detect if a link or window caused the unload event to fire.

var link_was_clicked = false;
document.addEventListener("click", function(e) {
   if (e.target.nodeName.toLowerCase() === 'a') {
      link_was_clicked = true;
   }
}, true);

window.onbeforeunload = function(e) {
    if(link_was_clicked) {
        return;
    }
    return confirm('Are you sure?');
}

Change the type to submit and give it a name (and remove the useless onclick and flat out the 90's style uppercased tags/attributes).

<input type="submit" name="foo" value="A" />
<input type="submit" name="foo" value="B" />
...

The value will be available by $_POST['foo'] (if the parent <form> has a method="post").

If you want to do this with an easy macro, here's one:

#define REMOVE_SPACES(x) x.erase(std::remove(x.begin(), x.end(), ' '), x.end())

This assumes you have done #include <string> of course.

Call it like so:

std::string sName = " Example Name ";
REMOVE_SPACES(sName);
printf("%s",sName.c_str()); // requires #include <stdio.h>

I can think of a cheeky way to do it, I don't think this will be the best option but it will work.

Create the header as a separate table then place the other in a div and set a max size, then allow the scroll to come in by using overflow.

table {_x000D_
  width: 500px;_x000D_
}_x000D_
_x000D_
.scroll {_x000D_
  max-height: 60px;_x000D_
  overflow: auto;_x000D_
}

<table border="1">_x000D_
  <tr>_x000D_
  <th>head1</th>_x000D_
  <th>head2</th>_x000D_
  <th>head3</th>_x000D_
  <th>head4</th>_x000D_
  </tr>_x000D_
</table>_x000D_
<div class="scroll">_x000D_
  <table>_x000D_
    <tr><td>Text Text</td><td>Text Text</td><td>Text Text</td><td>Text Text</td></tr>_x000D_
    <tr><td>Text Text</td><td>Text Text</td><td>Text Text</td><td>Text Text</td></tr>_x000D_
    <tr><td>Text Text</td><td>Text Text</td><td>Text Text</td><td>Text Text</td></tr>_x000D_
    <tr><td>Text Text</td><td>Text Text</td><td>Text Text</td><td>Text Text</td></tr>_x000D_
    <tr><td>Text Text</td><td>Text Text</td><td>Text Text</td><td>Text Text</td></tr>_x000D_
    <tr><td>Text Text</td><td>Text Text</td><td>Text Text</td><td>Text Text</td></tr>_x000D_
    <tr><td>More Text</td><td>More Text</td><td>More Text</td><td>More Text</td></tr>_x000D_
    <tr><td>Text Text</td><td>Text Text</td><td>Text Text</td><td>Text Text</td></tr>_x000D_
    <tr><td>Even More Text Text</td><td>Even More Text Text</td><td>Even More Text Text</td><td>Even More Text Text</td></tr>_x000D_
  </table>_x000D_
</div>

follow the steps:(let I assuming you have chosen Android view) app>res>values>strings

<string name="app_name">Put your App's new name here</string>

A reproducible example:

the_plot <- function()
{
  x <- seq(0, 1, length.out = 100)
  y <- pbeta(x, 1, 10)
  plot(
    x,
    y,
    xlab = "False Positive Rate",
    ylab = "Average true positive rate",
    type = "l"
  )
}

James's suggestion of using pointsize, in combination with the various cex parameters, can produce reasonable results.

png(
  "test.png",
  width     = 3.25,
  height    = 3.25,
  units     = "in",
  res       = 1200,
  pointsize = 4
)
par(
  mar      = c(5, 5, 2, 2),
  xaxs     = "i",
  yaxs     = "i",
  cex.axis = 2,
  cex.lab  = 2
)
the_plot()
dev.off()

Of course the better solution is to abandon this fiddling with base graphics and use a system that will handle the resolution scaling for you. For example,

library(ggplot2)

ggplot_alternative <- function()
{
  the_data <- data.frame(
    x <- seq(0, 1, length.out = 100),
    y = pbeta(x, 1, 10)
  )

ggplot(the_data, aes(x, y)) +
    geom_line() +
    xlab("False Positive Rate") +
    ylab("Average true positive rate") +
    coord_cartesian(0:1, 0:1)
}

ggsave(
  "ggtest.png",
  ggplot_alternative(),
  width = 3.25,
  height = 3.25,
  dpi = 1200
)

Compilr seems to be going in that direction: http://compilr.com/teachers

I had the same problem. I was able to solve the problem from application side, under the following scenario:

JDK8, spring framework 4.2.4.RELEASE, apache tomcat 7.0.63, Oracle Database 11g Enterprise Edition 11.2.0.4.0

I used the database connection pooling apache tomcat-jdbc:

You can take the following configuration parameters as a reference:

<Resource name="jdbc/exampleDB"
      auth="Container"
      type="javax.sql.DataSource"
      factory="org.apache.tomcat.jdbc.pool.DataSourceFactory"
      testWhileIdle="true"
      testOnBorrow="true"
      testOnReturn="false"
      validationQuery="SELECT 1 FROM DUAL"
      validationInterval="30000"
      timeBetweenEvictionRunsMillis="30000"
      maxActive="100"
      minIdle="10"
      maxWait="10000"
      initialSize="10"
      removeAbandonedTimeout="60"
      removeAbandoned="true"
      logAbandoned="true"
      minEvictableIdleTimeMillis="30000"
      jmxEnabled="true"
      jdbcInterceptors="org.apache.tomcat.jdbc.pool.interceptor.ConnectionState;
        org.apache.tomcat.jdbc.pool.interceptor.StatementFinalizer"
      username="your-username"
      password="your-password"
      driverClassName="oracle.jdbc.driver.OracleDriver"
      url="jdbc:oracle:thin:@localhost:1521:xe"/>

This configuration was sufficient to fix the error. This works fine for me in the scenario mentioned above.

For more details about the setup apache tomcat-jdbc: https://tomcat.apache.org/tomcat-7.0-doc/jdbc-pool.html

Since 0.14 this method won't work, so I built a static component that will make this simple for you guys. You can just paste this in or reference it as a component.

This should be re-useable and it will allow you to add additional styles and properties as-if it were a standard <Image /> component

const BackgroundImage = ({ source, children, style, ...props }) => {
  return (
      <Image
        source={source}
        style={{flex: 1, width: null, height: null, ...style}}
        {...props}>
        {children}
      </Image>
  );
}

just paste this in and then you can use it like image and it should fit the entire size of the view it is in (so if it's the top view it will fill your screen.

<BackgroundImage source={require('../../assets/backgrounds/palms.jpg')}>
    <Scene styles={styles} {...store} />
</BackgroundImage>

Click here for a Preview Image

Your script is being executed before the body element has even loaded.

There are a couple ways to workaround this.

• Wrap your code in a DOM Load callback:

  Wrap your logic in an event listener for DOMContentLoaded.

  In doing so, the callback will be executed when the body element has loaded.

  document.addEventListener('DOMContentLoaded', function () {
      // ...
      // Place code here.
      // ...
  });
  

  Depending on your needs, you can alternatively attach a load event listener to the window object:

  window.addEventListener('load', function () {
      // ...
      // Place code here.
      // ...
  });
  

  For the difference between between the DOMContentLoaded and load events, see this question.

• Move the position of your <script> element, and load JavaScript last:

  Right now, your <script> element is being loaded in the <head> element of your document. This means that it will be executed before the body has loaded. Google developers recommends moving the <script> tags to the end of your page so that all the HTML content is rendered before the JavaScript is processed.

  <!DOCTYPE html>
  <html>
  <head></head>
  <body>
    <p>Some paragraph</p>
    <!-- End of HTML content in the body tag -->
  
    <script>
      <!-- Place your script tags here. -->
    </script>
  </body>
  </html>
  

If the slice is sorted, there is a binary search implemented in the sort package.

\App::call('App\Http\Controllers\MyController@getFoo')

You can try to add some time.sleep calls to your code.

It seems like the server side limits the amount of requests per timeunit (hour, day, second) as a security issue. You need to guess how many (maybe using another script with a counter?) and adjust your script to not surpass this limit.

In order to avoid your code from crashing, try to catch this error with try .. except around the urllib2 calls.

Probably the file is not in the path specified. '../../../' will move 3 step up to the directory in which the page is located and look for the js file in a folder named JS.

Also the language attribute is Deprecated.

See Scripts:

18.2.1 The SCRIPT element

language = cdata [CI]

Deprecated. This attribute specifies the scripting language of the contents of this element. Its value is an identifier for the language, but since these identifiers are not standard, this attribute has been deprecated in favor of type.

Edit

Try changing

<script src="../../../JS/Registration.js" language="javascript" type="text/javascript" /> 

to

<script src="../../../JS/Registration.js" language="javascript" type="text/javascript"></script>

library(DnE)
x<-rnorm(1000,0,1)
is.norm(x,10,0.05)

ES—Shorter

[...element.parentNode.children].indexOf(element);

The spread Operator is a shortcut for that

double[][] arr = new double[20][4];
Arrays.fill(arr[0], 0);
Arrays.fill(arr[1], 0);
Arrays.fill(arr[2], 0);
Arrays.fill(arr[3], 0);
Arrays.fill(arr[4], 0);
Arrays.fill(arr[5], 0);
Arrays.fill(arr[6], 0);
Arrays.fill(arr[7], 0);
Arrays.fill(arr[8], 0);
Arrays.fill(arr[9], 0);
Arrays.fill(arr[10], 0);
Arrays.fill(arr[11], 0);
Arrays.fill(arr[12], 0);
Arrays.fill(arr[13], 0);
Arrays.fill(arr[14], 0);
Arrays.fill(arr[15], 0);
Arrays.fill(arr[16], 0);
Arrays.fill(arr[17], 0);
Arrays.fill(arr[18], 0);
Arrays.fill(arr[19], 0);

a = 0    #1. global variable with respect to every function in program

def f():
    a = 0          #2. nonlocal with respect to function g
    def g():
        nonlocal a
        a=a+1
        print("The value of 'a' using nonlocal is ", a)
    def h():
        global a               #3. using global variable
        a=a+5
        print("The value of a using global is ", a)
    def i():
        a = 0              #4. variable separated from all others
        print("The value of 'a' inside a function is ", a)

    g()
    h()
    i()
print("The value of 'a' global before any function", a)
f()
print("The value of 'a' global after using function f ", a)

Yes, via extensions. Try Bookmarks extension on marketplace.visualstudio.com

Hit Ctrl+Shift+P and type the install extensions and press enter, then type Bookmark and press enter.

Next you may wish to customize what keys are used to make a bookmark and move to it. For that see this question.

I know you have asked for a clean solution, but here are two dirty once:

        static void diffYears1()
{
    SimpleDateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy");
    Calendar calendar1 = Calendar.getInstance(); // now
    String toDate = dateFormat.format(calendar1.getTime());

    Calendar calendar2 = Calendar.getInstance();
    calendar2.add(Calendar.DAY_OF_YEAR, -7000); // some date in the past
    String fromDate = dateFormat.format(calendar2.getTime());

    // just simply add one year at a time to the earlier date until it becomes later then the other one 
    int years = 0;
    while(true)
    {
        calendar2.add(Calendar.YEAR, 1);
        if(calendar2.getTimeInMillis() < calendar1.getTimeInMillis())
            years++;
        else
            break;
    }

    System.out.println(years + " years between " + fromDate + " and " + toDate);
}

static void diffYears2()
{
    SimpleDateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy");
    Calendar calendar1 = Calendar.getInstance(); // now
    String toDate = dateFormat.format(calendar1.getTime());

    Calendar calendar2 = Calendar.getInstance();
    calendar2.add(Calendar.DAY_OF_YEAR, -7000); // some date in the past
    String fromDate = dateFormat.format(calendar2.getTime());

    // first get the years difference from the dates themselves
    int years = calendar1.get(Calendar.YEAR) - calendar2.get(Calendar.YEAR);
    // now make the earlier date the same year as the later
    calendar2.set(Calendar.YEAR, calendar1.get(Calendar.YEAR));
    // and see if new date become later, if so then one year was not whole, so subtract 1 
    if(calendar2.getTimeInMillis() > calendar1.getTimeInMillis())
        years--;

    System.out.println(years + " years between " + fromDate + " and " + toDate);
}

Since some of the answers give here relate to setting up SMTP in general (and not just for @shinod particular issue where it had been working and stopped), I thought it would be helpful if I updated the answer because this is a lot simpler to do now than it used to be :-)

In PHP 4 the PEAR Mail package is typically already installed, and this really simple tutorial shows you the few lines of code that you need to add to your php file http://email.about.com/od/emailprogrammingtips/qt/PHP_Email_SMTP_Authentication.htm

Most hosting companies list the SMTP settings that you'll need. I use JustHost, and they list theirs at https://my.justhost.com/cgi/help/26 (under Outgoing Mail Server)

You need to set the height of every parent element of the one you want the height defined.

<html style="height: 100%;">
  <body style="height: 100%;">
    <div style="height: 100%;">
      <p>
        Make this division 100% height.
      </p>
    </div>
  </body>
</html>

Article.

JsFiddle example

Shallow copy:

Some members of the copy may reference the same objects as the original:

class X
{
private:
    int i;
    int *pi;
public:
    X()
        : pi(new int)
    { }
    X(const X& copy)   // <-- copy ctor
        : i(copy.i), pi(copy.pi)
    { }
};

Here, the pi member of the original and copied X object will both point to the same int.

Deep copy:

All members of the original are cloned (recursively, if necessary). There are no shared objects:

class X
{
private:
    int i;
    int *pi;
public:
    X()
        : pi(new int)
    { }
    X(const X& copy)   // <-- copy ctor
        : i(copy.i), pi(new int(*copy.pi))  // <-- note this line in particular!
    { }
};

Here, the pi member of the original and copied X object will point to different int objects, but both of these have the same value.

_{The default copy constructor (which is automatically provided if you don't provide one yourself) creates only shallow copies.}

Correction: Several comments below have correctly pointed out that it is wrong to say that the default copy constructor always performs a shallow copy (or a deep copy, for that matter). Whether a type's copy constructor creates a shallow copy, or deep copy, or something in-between the two, depends on the combination of each member's copy behaviour; a member's type's copy constructor can be made to do whatever it wants, after all.

Here's what section 12.8, paragraph 8 of the 1998 C++ standard says about the above code examples:

The implicitly defined copy constructor for class X performs a memberwise copy of its subobjects. [...] Each subobject is copied in the manner appropriate to its type: [...] [I]f the subobject is of scalar type, the builtin assignment operator is used.

Yes :). Try this:

DECLARE @text AS NVARCHAR(10)

SET @text = '100'
SELECT CASE WHEN ISNUMERIC(@text) = 1 THEN CAST(@text AS INT) ELSE NULL END
-- returns 100

SET @text = 'XXX'
SELECT CASE WHEN ISNUMERIC(@text) = 1 THEN CAST(@text AS INT) ELSE NULL END
-- returns NULL

ISNUMERIC() has a few issues pointed by Fedor Hajdu.

It returns true for strings like $ (is currency), , or . (both are separators), + and -.

Use the filename property like this:

uriContent = "data:application/octet-stream;filename=filename.txt," + 
              encodeURIComponent(codeMirror.getValue());
newWindow=window.open(uriContent, 'filename.txt');

EDIT:

Apparently, there is no reliable way to do this. See: Is there any way to specify a suggested filename when using data: URI?

Which alignment technique you use depends on your circumstances but the basic one is float: right;:

<input type="button" value="Click Me" style="float: right;">

You'll probably want to clear your floats though but that can be done with overflow:hidden on the parent container or an explicit <div style="clear: both;"></div> at the bottom of the container.

For example: http://jsfiddle.net/ambiguous/8UvVg/

Floated elements are removed from the normal document flow so they can overflow their parent's boundary and mess up the parent's height, the clear:both CSS takes care of that (as does overflow:hidden). Play around with the JSFiddle example I added to see how floating and clearing behave (you'll want to drop the overflow:hidden first though).

You need to use html helper, and you don't need to provide date format in model class. e.x :

@Html.TextBoxFor(m => m.ResgistrationhaseDate, "{0:dd/MM/yyyy}")

I wrote a very simple class for exporting to "Excel XML" aka SpreadsheetML. It's not quite as convenient for the end user as XSLX (depending on file extension and Excel version, they may get a warning message), but it's a lot easier to work with than XLS or XLSX.

http://github.com/elidickinson/php-export-data

Oracle has announced fix for Windows XP installation error

Oracle has decided to fix Windows XP installation. As of the JRE 8u25 release in 10/15/2014 the code of the installer has been changes so that installation on Windows XP is again possible.

However, this does not mean that Oracle is continuing to support Windows XP. They make no guarantee about current and future releases of JRE8 being compatible with Windows XP. It looks like it's a run at your own risk kind of thing.

See the Oracle blog post here.

You can get the latest JRE8 right off the Oracle downloads site.

Angular Concepts

• imports makes the exported declarations of other modules available in the current module
• declarations are to make directives (including components and pipes) from the current module available to other directives in the current module. Selectors of directives, components or pipes are only matched against the HTML if they are declared or imported.
• providers are to make services and values known to DI (dependency injection). They are added to the root scope and they are injected to other services or directives that have them as dependency.

A special case for providers are lazy loaded modules that get their own child injector. providers of a lazy loaded module are only provided to this lazy loaded module by default (not the whole application as it is with other modules).

For more details about modules see also https://angular.io/docs/ts/latest/guide/ngmodule.html

• exports makes the components, directives, and pipes available in modules that add this module to imports. exports can also be used to re-export modules such as CommonModule and FormsModule, which is often done in shared modules.

• entryComponents registers components for offline compilation so that they can be used with ViewContainerRef.createComponent(). Components used in router configurations are added implicitly.

TypeScript (ES2015) imports

import ... from 'foo/bar' (which may resolve to an index.ts) are for TypeScript imports. You need these whenever you use an identifier in a typescript file that is declared in another typescript file.

Angular's @NgModule() imports and TypeScript import are entirely different concepts.

See also jDriven - TypeScript and ES6 import syntax

Most of them are actually plain ECMAScript 2015 (ES6) module syntax that TypeScript uses as well.

If you’re using the Spring Framework then you can use the Spring Expression Language (SpEL) for that. I’ve wrote a small library that provides JSR-303 validator based on SpEL – it makes cross-field validations a breeze! Take a look at https://github.com/jirutka/validator-spring.

This will validate length and equality of the password fields.

@SpELAssert(value = "pass.equals(passVerify)",
            message = "{validator.passwords_not_same}")
public class MyBean {

    @Size(min = 6, max = 50)
    private String pass;

    private String passVerify;
}

You can also easily modify this to validate the password fields only when not both empty.

@SpELAssert(value = "pass.equals(passVerify)",
            applyIf = "pass || passVerify",
            message = "{validator.passwords_not_same}")
public class MyBean {

    @Size(min = 6, max = 50)
    private String pass;

    private String passVerify;
}

in parent.html:

<script type="text/javascript">
    $(document).ready(function () {
        var output = "data";
        var OpenWindow = window.open("child.html", "mywin", '');
        OpenWindow.dataFromParent = output; // dataFromParent is a variable in child.html
        OpenWindow.init();
    });
</script>

in child.html:

<script type="text/javascript">
    var dataFromParent;    
    function init() {
        document.write(dataFromParent);
    }
</script>

Simplest way to do is as follows:

git fetch && git checkout <branch_name>

var statuses = new[] { "A", "B", "C" };

var filteredOrders = from order in orders.Order
                             where statuses.Contains(order.StatusCode)
                             select order;

Swift 5 and above

   let attributedString = NSAttributedString(string:"targetString",
                                   attributes:[NSAttributedString.Key.foregroundColor: UIColor.lightGray,
                                               NSAttributedString.Key.font: UIFont(name: "Arial", size: 18.0) as Any])

Delete the data-target attribute from button type. Then add onClick="$('#your_modal_name').modal('show')" in the button tag. I hope it will work as I faced the same problem & I fixed the issue by calling the show class of modal via jQuery.

This type of problem can happen when you delete/move files around - in essence making changes to your directory structure. Subversion only checks for changes made in files already added to subversion, not changes made to the directory structure. Instead of using your OS's copy etc commands rather use svn copy etc. Please see http://svnbook.red-bean.com/en/1.7/svn.tour.cycle.html

Further, upon committing changes svn first stores a "summary" of changes in a todo list. Upon performing the svn operations in this todo list it locks the file to prevent other changes while these svn actions are performed. If the svn action is interrupted midway, say by a crash, the file will remain locked until svn could complete the actions in the todo list. This can be "reactivated" by using the svn cleanup command. Please see http://svnbook.red-bean.com/en/1.7/svn.tour.cleanup.html

This Code Is working Fine :

txtTimer.setText(String.format("%02d:%02d:%02d",(SecondsCounter/3600), ((SecondsCounter % 3600)/60), (SecondsCounter % 60)));

Let's use some java 8 feature:

IntStream.iterate(10, x -> x + 10).limit(5)
  .forEach(System.out::println);

If you need to store the numbers you can collect them into a collection eg:

List numbers = IntStream.iterate(10, x -> x + 10).limit(5)
  .boxed()
  .collect(Collectors.toList());

And some delay added:

IntStream.iterate(10, x -> x + 10).limit(5)
  .forEach(x -> {
    System.out.println(x);
    try {
      Thread.sleep(2000);
    } catch (InterruptedException e) {
      // Do something with the exception
    }  
  });

As other answers mention, as for python 3.7+, the dict is ordered by definition. Instead of subclassing OrderedDict we can subclass abc.collections.MutableSet or typing.MutableSet using the dict's keys to store our values.

class OrderedSet(typing.MutableSet[T]):
    """A set that preserves insertion order by internally using a dict."""

    def __init__(self, iterable: t.Iterator[T]):
        self._d = dict.fromkeys(iterable)

    def add(self, x: T) -> None:
        self._d[x] = None

    def discard(self, x: T) -> None:
        self._d.pop(x)

    def __contains__(self, x: object) -> bool:
        return self._d.__contains__(x)

    def __len__(self) -> int:
        return self._d.__len__()

    def __iter__(self) -> t.Iterator[T]:
        return self._d.__iter__()

Then just:

x = OrderedSet([1, 2, -1, "bar"])
x.add(0)
assert list(x) == [1, 2, -1, "bar", 0]

I put this code in a small library, so anyone can just pip install it.

Something like that should be what you need

private void button1_Click(object sender, RoutedEventArgs e)
{
    // Create OpenFileDialog 
    Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog();



    // Set filter for file extension and default file extension 
    dlg.DefaultExt = ".png";
    dlg.Filter = "JPEG Files (*.jpeg)|*.jpeg|PNG Files (*.png)|*.png|JPG Files (*.jpg)|*.jpg|GIF Files (*.gif)|*.gif"; 


    // Display OpenFileDialog by calling ShowDialog method 
    Nullable<bool> result = dlg.ShowDialog();


    // Get the selected file name and display in a TextBox 
    if (result == true)
    {
        // Open document 
        string filename = dlg.FileName;
        textBox1.Text = filename;
    }
}

It's possible to do with just one image file using the ColorFilter method. However, ColorFilter expects to work with ImageViews and not Buttons, so you have to transform your buttons into ImageViews. This isn't a problem if you're using images as your buttons anyway, but it's more annoying if you had text... Anyway, assuming you find a way around the problem with text, here's the code to use:

ImageView button = (ImageView) findViewById(R.id.button);
button.setColorFilter(0xFFFF0000, PorterDuff.Mode.MULTIPLY);

That applies a red overlay to the button (the color code is the hex code for fully opaque red - first two digits are transparency, then it's RR GG BB.).

You need to unicode each element of the list individually

[x.encode('utf-8') for x in tmp]

I would imagine the safest way would just be to parse for <>s, no? Loop through the entire string, and copy anything not enclosed in <>s to a new string.

Here is the puppet script with all the available puppet log functions.

log_levels.pp

node default {
  notice("try to run this script with -v and -d to see difference between log levels")
  notice("function documentation is available here: http://docs.puppetlabs.com/references/latest/function.html")
  notice("--------------------------------------------------------------------------")

  debug("this is debug. visible only with -d or --debug")
  info("this is info. visible only with -v or --verbose or -d or --debug")
  alert("this is alert. always visible")
  crit("this is crit. always visible")
  emerg("this is emerg. always visible")
  err("this is err. always visible")
  warning("and this is warning. always visible")
  notice("this is notice. always visible")
  #fail will break execution
  fail("this is fail. always visible. fail will break execution process")

}

Script output (on puppet 2.7):

NB: puppet 3.x colours may alter (all the errors will be printed in red)!

You do not sort entries in the Dictionary. Dictionary class in .NET is implemented as a hashtable - this data structure is not sortable by definition.

If you need to be able to iterate over your collection (by key) - you need to use SortedDictionary, which is implemented as a Binary Search Tree.

In your case, however the source structure is irrelevant, because it is sorted by a different field. You would still need to sort it by frequency and put it in a new collection sorted by the relevant field (frequency). So in this collection the frequencies are keys and words are values. Since many words can have the same frequency (and you are going to use it as a key) you cannot use neither Dictionary nor SortedDictionary (they require unique keys). This leaves you with a SortedList.

I don't understand why you insist on maintaining a link to the original item in your main/first dictionary.

If the objects in your collection had a more complex structure (more fields) and you needed to be able to efficiently access/sort them using several different fields as keys - You would probably need a custom data structure that would consist of the main storage that supports O(1) insertion and removal (LinkedList) and several indexing structures - Dictionaries/SortedDictionaries/SortedLists. These indexes would use one of the fields from your complex class as a key and a pointer/reference to the LinkedListNode in the LinkedList as a value.

You would need to coordinate insertions and removals to keep your indexes in sync with the main collection (LinkedList) and removals would be pretty expensive I'd think. This is similar to how database indexes work - they are fantastic for lookups but they become a burden when you need to perform many insetions and deletions.

All of the above is only justified if you are going to do some look-up heavy processing. If you only need to output them once sorted by frequency then you could just produce a list of (anonymous) tuples:

var dict = new SortedDictionary<string, int>();
// ToDo: populate dict

var output = dict.OrderBy(e => e.Value).Select(e => new {frequency = e.Value, word = e.Key}).ToList();

foreach (var entry in output)
{
    Console.WriteLine("frequency:{0}, word: {1}",entry.frequency,entry.word);
}

These are the necersary imports:

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

And this is a method that will allow you to read from a File by passing it the filename as a parameter like this: readFile("yourFile.txt");

String readFile(String fileName) throws IOException {
    BufferedReader br = new BufferedReader(new FileReader(fileName));
    try {
        StringBuilder sb = new StringBuilder();
        String line = br.readLine();

        while (line != null) {
            sb.append(line);
            sb.append("\n");
            line = br.readLine();
        }
        return sb.toString();
    } finally {
        br.close();
    }
}

After upgrading Spring boot to the latest version - 2.3.3.RELEASE. I also got this error - Cannot resolve org.springframework.boot:spring-boot-starter-test:unknown. Maven clean install, updating maven project, cleaning cache do not help.
The solution was adding version placeholder from spring boot parent pom:

 <dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-test</artifactId>
   <version>${spring-boot.version}</version>
   <scope>test</scope>
 </dependency>

For the second request, pause/wait, where you stop processing in Lua and continue to run your application, you need coroutines. You end up with some C code like this following:

Lthread=lua_newthread(L);
luaL_loadfile(Lthread, file);
while ((status=lua_resume(Lthread, 0) == LUA_YIELD) {
  /* do some C code here */
}

and in Lua, you have the following:

function try_pause (func, param)
  local rc=func(param)
  while rc == false do
    coroutine.yield()
    rc=func(param)
  end
end

function is_data_ready (data)
  local rc=true
  -- check if data is ready, update rc to false if not ready
  return rc
end

try_pause(is_data_ready, data)

from @Zzmilanzz's answer I used

try: #python3
    from urllib.request import urlopen
except: #python2
    from urllib2 import urlopen

Add the linked server first with

exec sp_addlinkedserver
@server = 'SNRJDI\SLAMANAGEMENT',
@srvproduct=N'',
@provider=N'SQLNCLI'

See http://msdn.microsoft.com/en-us/library/ms190479.aspx

add this config file

*************************************************************************************
<!--Configuration for file appender-->

<configuration>
  <configSections>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
  </configSections>
  <log4net>
    <appender name="FileAppender" type="log4net.Appender.FileAppender">
      <file value="logfile.txt" />
      <appendToFile value="true" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%d [%t] %-5p [%logger] - %m%n" />
      </layout>
    </appender>
    <root>
      <level value="DEBUG" />
      <appender-ref ref="FileAppender" />
    </root>
  </log4net>
</configuration>

*************************************************************************************

<!--Configuration for console appender-->


<configuration>

  <configSections>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,
        log4net" />
  </configSections>

  <log4net>
    <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender" >
      <layout type="log4net.Layout.PatternLayout">
        <param name="ConversionPattern" value="%d [%t] %-5p [%logger] - %m%n" />
      </layout>
    </appender>
   <root>
      <level value="ALL" />
      <appender-ref ref="ConsoleAppender" />
    </root>
  </log4net>
</configuration>

From the documentation for ast.literal_eval():

Safely evaluate an expression node or a string containing a Python expression. The string or node provided may only consist of the following Python literal structures: strings, numbers, tuples, lists, dicts, booleans, and None.

Decimal isn't on the list of things allowed by ast.literal_eval().

Just to simplify -

Entity framework doesn't support primitives. You either create a class to wrap it or add another property to format the list as a string:

public ICollection<string> List { get; set; }
public string ListString
{
    get { return string.Join(",", List); }
    set { List = value.Split(',').ToList(); }
}

Function:

public float simpleSimilarity(String u, String v) {
    String[] a = u.split(" ");
    String[] b = v.split(" ");

    long correct = 0;
    int minLen = Math.min(a.length, b.length);

    for (int i = 0; i < minLen; i++) {
        String aa = a[i];
        String bb = b[i];
        int minWordLength = Math.min(aa.length(), bb.length());

        for (int j = 0; j < minWordLength; j++) {
            if (aa.charAt(j) == bb.charAt(j)) {
                correct++;
            }
        }
    }

    return (float) (((double) correct) / Math.max(u.length(), v.length()));
}

Test:

String a = "This is the first string.";

String b = "this is not 1st string!";

// for exact string comparison, use .equals

boolean exact = a.equals(b);

// For similarity check, there are libraries for this
// Here I'll try a simple example I wrote

float similarity = simple_similarity(a,b);

<selector xmlns:android="http://schemas.android.com/apk/res/android" >    
    <item android:state_pressed="true" android:drawable="@drawable/YOUR DRAWABLE XML" /> 
    <item android:drawable="@drawable/YOUR DRAWABLE XML" />
</selector>

I just tested a couple paths using Excel 2013 on on Windows 7. I found the overall pathname limit to be 213 and the basename length to be 186. At least the error dialog for exceeding basename length is clear:

And trying to move a not-too-long basename to a too-long-pathname is also very clear:

The pathname error is deceptive, though. Quite unhelpful:

This is a lazy Microsoft restriction. There's no good reason for these arbitrary length limits, but in the end, it’s a real bug in the error dialog.

Ok the first issue with the div tag was easy enough: I just added a style="display:none;" to it and then before showing the dialog I added this in my dialog script:

$("#dialog").css("display", "inherit");

But for the post version I'm still out of luck.

I developed a software tool that opens (most) Pickle files directly in your browser (nothing is transferred so it's 100% private):

https://pickleviewer.com/

You can use the

getdate()

function which returns an array containing all elements of the date/time supplied:

$diff = abs($endDate - $startDate);
$my_t=getdate($diff);
print("$my_t[year] years, $my_t[month] months and $my_t[mday] days");

If your start and end dates are in string format then use

$startDate = strtotime($startDateStr);
$endDate = strtotime($endDateStr);

before the above code

You can add the model error on any property of your model, I suggest if there is nothing related to create a new property.

As an exemple we check if the email is already in use in DB and add the error to the Email property in the action so when I return the view, they know that there's an error and how to show it up by using

<%: Html.ValidationSummary(true)%>
<%: Html.ValidationMessageFor(model => model.Email) %>

and

ModelState.AddModelError("Email", Resources.EmailInUse);

You can use pigz instead of gzip, which does gzip compression on multiple cores. Instead of using the -z option, you would pipe it through pigz:

tar cf - paths-to-archive | pigz > archive.tar.gz

By default, pigz uses the number of available cores, or eight if it could not query that. You can ask for more with -p n, e.g. -p 32. pigz has the same options as gzip, so you can request better compression with -9. E.g.

tar cf - paths-to-archive | pigz -9 -p 32 > archive.tar.gz

A one-liner:

var encodedMsg = $('<div />').text(message).html();

See it work:

https://jsfiddle.net/TimothyKanski/wnt8o12j/

a negative index will count from the end of the list, so:

num_list[-9:]

"mxc" is right. fetchType just specifies when the relation should be resolved.

To optimize eager loading by using an outer join you have to add

@Fetch(FetchMode.JOIN)

to your field. This is a hibernate specific annotation.

BookTitle have a Composite key. so if the key of BookTitle is referenced as a foreign key you have to bring the complete composite key.

So to resolve the problem you need to add the complete composite key in the BookCopy. So add ISBN column as well. and they at the end.

foreign key (ISBN, Title) references BookTitle (ISBN, Title)

When you have to reload the file, you can erase the value of input. Next time you add a file, 'on change' event will trigger.

document.getElementById('my_input').value = null;
// ^ that just erase the file path but do the trick

In file Login.html:

<html>
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
  <title>Login Form</title>
</head>
<body>
  <section class="container">
    <div class="login">
      <h1>Login</h1>
      <form method="post" action="login.php">
        <p><input type="text" name="username" value="" placeholder="Username"></p>
        <p><input type="password" name="password" value="" placeholder="Password"></p>

        <p class="submit"><input type="submit" name="commit" value="Login"></p>
      </form>
    </div>
</body>
</html>

In file Login.php:

<?php
    $host="localhost"; // Host name
    $username=""; // MySQL username
    $password=""; // MySQL password
    $db_name=""; // Database name
    $tbl_name="members"; // Table name

    // Connect to the server and select a database.
    mysql_connect("$host", "$username", "$password") or die("cannot connect");
    mysql_select_db("$db_name") or die("cannot select DB");

    // Username and password sent from the form
    $username = $_POST['username'];
    $password = $_POST['password'];

    // To protect MySQL injection (more detail about MySQL injection)
    $username = stripslashes($username);
    $password = stripslashes($password);
    $username = mysql_real_escape_string($username);
    $password = mysql_real_escape_string($password);
    $sql = "SELECT * FROM $tbl_name WHERE username='$username' and password='$password'";
    $result = mysql_query($sql);

    // Mysql_num_row is counting the table rows
    $count=mysql_num_rows($result);

    // If the result matched $username and $password, the table row must be one row
    if($count == 1){
        session_start();
        $_SESSION['loggedin'] = true;
        $_SESSION['username'] = $username;
    }

In file Member.php:

session_start();
if (isset($_SESSION['loggedin']) && $_SESSION['loggedin'] == true) {
    echo "Welcome to the member's area, " . $_SESSION['username'] . "!";
}
else {
    echo "Please log in first to see this page.";
}

In MySQL:

CREATE TABLE `members` (
    `id` int(4) NOT NULL auto_increment,
    `username` varchar(65) NOT NULL default '',
    `password` varchar(65) NOT NULL default '',
    PRIMARY KEY (`id`)
) TYPE=MyISAM AUTO_INCREMENT=2 ;

In file Register.html:

<html>
    <head>
        <title>Sign-Up</title>
    </head>

    <body id="body-color">
        <div id="Sign-Up">
            <fieldset style="width:30%"><legend>Registration Form</legend>
                <table border="0">
                    <form method="POST" action="register.php">
                        <tr>
                            <td>UserName</td><td> <input type="text" name="username"></td>
                        </tr>

                        <tr>
                            <td>Password</td><td> <input type="password" name="password"></td>
                        </tr>

                        <tr>
                            <td><input id="button" type="submit" name="submit" value="Sign-Up"></td>
                        </tr>
                    </form>
                </table>
            </fieldset>
        </div>
    </body>
</html>

In file Register.php:

<?php
    define('DB_HOST', '');
    define('DB_NAME', '');
    define('DB_USER','');
    define('DB_PASSWORD', '');

    $con = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD) or die("Failed to connect to MySQL: " . mysql_error());
    $db = mysql_select_db(DB_NAME, $con) or die("Failed to connect to MySQL: " . mysql_error());

    $userName = $_POST['username'];
    $password = $_POST['password'];
    $query = "INSERT INTO members (username,password) VALUES ('$userName', '$password')";
    $data = mysql_query ($query) or die(mysql_error());
    if($data)
    {
        echo "Your registration is completed...";
    }
    else
    {
        echo "Unknown Error!"
    }

public void Letters(JTextField a) {
    a.addKeyListener(new KeyAdapter() {
        @Override
        public void keyTyped(java.awt.event.KeyEvent e) {
            char c = e.getKeyChar();
            if (Character.isDigit(c)) {
                e.consume();
            }
            if (Character.isLetter(c)) {
                e.setKeyChar(Character.toUpperCase(c));
            }
        }
    });
}

public void Numbers(JTextField a) {
    a.addKeyListener(new KeyAdapter() {
        @Override
        public void keyTyped(java.awt.event.KeyEvent e) {
            char c = e.getKeyChar();
            if (!Character.isDigit(c)) {
                e.consume();
            }
        }
    });
}

public void Caracters(final JTextField a, final int lim) {
    a.addKeyListener(new KeyAdapter() {
        @Override
        public void keyTyped(java.awt.event.KeyEvent ke) {
            if (a.getText().length() == lim) {
                ke.consume();
            }
        }
    });
}

Place your RaisedButton(...) in a SizedBox

SizedBox(
  width: double.infinity,
  child: RaisedButton(...),
)

I use following code to get Android id.

String android_id = Secure.getString(this.getContentResolver(),
            Secure.ANDROID_ID);

Log.d("Android","Android ID : "+android_id);

You can also use now() in Postgres. The problem is you can't add/subtract integers from timestamp or timestamptz. You can either do as Mark Byers suggests and subtract an interval, or use the date type which does allow you to add/subtract integers

SELECT now()::date + 100 AS date1, current_date - 100 AS date2

Position the cursor inside the class, then press ALT + Ins and select Getters and Setters from the contextual menu.

In my case there was a need for:

@Injectable({
    providedIn: 'root'  // <- ADD THIS
})
export class FooService { ...

instead of just:

@Injectable()
export class FooService { ...

Yes, there are a couple of differences, though in practical terms they're not usually big ones.

There's a fourth way, and as of ES2015 (ES6) there's two more. I've added the fourth way at the end, but inserted the ES2015 ways after #1 (you'll see why), so we have:

var a = 0;     // 1
let a = 0;     // 1.1 (new with ES2015)
const a = 0;   // 1.2 (new with ES2015)
a = 0;         // 2
window.a = 0;  // 3
this.a = 0;    // 4

Those statements explained

#1 var a = 0;

This creates a global variable which is also a property of the global object, which we access as window on browsers (or via this a global scope, in non-strict code). Unlike some other properties, the property cannot be removed via delete.

In specification terms, it creates an identifier binding on the object Environment Record for the global environment. That makes it a property of the global object because the global object is where identifier bindings for the global environment's object Environment Record are held. This is why the property is non-deletable: It's not just a simple property, it's an identifier binding.

The binding (variable) is defined before the first line of code runs (see "When var happens" below).

Note that on IE8 and earlier, the property created on window is not enumerable (doesn't show up in for..in statements). In IE9, Chrome, Firefox, and Opera, it's enumerable.

#1.1 let a = 0;

This creates a global variable which is not a property of the global object. This is a new thing as of ES2015.

In specification terms, it creates an identifier binding on the declarative Environment Record for the global environment rather than the object Environment Record. The global environment is unique in having a split Environment Record, one for all the old stuff that goes on the global object (the object Environment Record) and another for all the new stuff (let, const, and the functions created by class) that don't go on the global object.

The binding is created before any step-by-step code in its enclosing block is executed (in this case, before any global code runs), but it's not accessible in any way until the step-by-step execution reaches the let statement. Once execution reaches the let statement, the variable is accessible. (See "When let and const happen" below.)

#1.2 const a = 0;

Creates a global constant, which is not a property of the global object.

const is exactly like let except that you must provide an initializer (the = value part), and you cannot change the value of the constant once it's created. Under the covers, it's exactly like let but with a flag on the identifier binding saying its value cannot be changed. Using const does three things for you:

1. Makes it a parse-time error if you try to assign to the constant.
2. Documents its unchanging nature for other programmers.
3. Lets the JavaScript engine optimize on the basis that it won't change.

#2 a = 0;

This creates a property on the global object implicitly. As it's a normal property, you can delete it. I'd recommend not doing this, it can be unclear to anyone reading your code later. If you use ES5's strict mode, doing this (assigning to a non-existent variable) is an error. It's one of several reasons to use strict mode.

And interestingly, again on IE8 and earlier, the property created not enumerable (doesn't show up in for..in statements). That's odd, particularly given #3 below.

#3 window.a = 0;

This creates a property on the global object explicitly, using the window global that refers to the global object (on browsers; some non-browser environments have an equivalent global variable, such as global on NodeJS). As it's a normal property, you can delete it.

This property is enumerable, on IE8 and earlier, and on every other browser I've tried.

#4 this.a = 0;

Exactly like #3, except we're referencing the global object through this instead of the global window. This won't work in strict mode, though, because in strict mode global code, this doesn't have a reference to the global object (it has the value undefined instead).

Deleting properties

What do I mean by "deleting" or "removing" a? Exactly that: Removing the property (entirely) via the delete keyword:

window.a = 0;
display("'a' in window? " + ('a' in window)); // displays "true"
delete window.a;
display("'a' in window? " + ('a' in window)); // displays "false"

delete completely removes a property from an object. You can't do that with properties added to window indirectly via var, the delete is either silently ignored or throws an exception (depending on the JavaScript implementation and whether you're in strict mode).

Warning: IE8 again (and presumably earlier, and IE9-IE11 in the broken "compatibility" mode): It won't let you delete properties of the window object, even when you should be allowed to. Worse, it throws an exception when you try (try this experiment in IE8 and in other browsers). So when deleting from the window object, you have to be defensive:

try {
    delete window.prop;
}
catch (e) {
    window.prop = undefined;
}

That tries to delete the property, and if an exception is thrown it does the next best thing and sets the property to undefined.

This only applies to the window object, and only (as far as I know) to IE8 and earlier (or IE9-IE11 in the broken "compatibility" mode). Other browsers are fine with deleting window properties, subject to the rules above.

When var happens

The variables defined via the var statement are created before any step-by-step code in the execution context is run, and so the property exists well before the var statement.

This can be confusing, so let's take a look:

display("foo in window? " + ('foo' in window)); // displays "true"
display("window.foo = " + window.foo);          // displays "undefined"
display("bar in window? " + ('bar' in window)); // displays "false"
display("window.bar = " + window.bar);          // displays "undefined"
var foo = "f";
bar = "b";
display("foo in window? " + ('foo' in window)); // displays "true"
display("window.foo = " + window.foo);          // displays "f"
display("bar in window? " + ('bar' in window)); // displays "true"
display("window.bar = " + window.bar);          // displays "b"

Live example:

display("foo in window? " + ('foo' in window)); // displays "true"_x000D_
display("window.foo = " + window.foo);          // displays "undefined"_x000D_
display("bar in window? " + ('bar' in window)); // displays "false"_x000D_
display("window.bar = " + window.bar);          // displays "undefined"_x000D_
var foo = "f";_x000D_
bar = "b";_x000D_
display("foo in window? " + ('foo' in window)); // displays "true"_x000D_
display("window.foo = " + window.foo);          // displays "f"_x000D_
display("bar in window? " + ('bar' in window)); // displays "true"_x000D_
display("window.bar = " + window.bar);          // displays "b"_x000D_
_x000D_
function display(msg) {_x000D_
  var p = document.createElement('p');_x000D_
  p.innerHTML = msg;_x000D_
  document.body.appendChild(p);_x000D_
}

As you can see, the symbol foo is defined before the first line, but the symbol bar isn't. Where the var foo = "f"; statement is, there are really two things: defining the symbol, which happens before the first line of code is run; and doing an assignment to that symbol, which happens where the line is in the step-by-step flow. This is known as "var hoisting" because the var foo part is moved ("hoisted") to the top of the scope, but the foo = "f" part is left in its original location. (See Poor misunderstood var on my anemic little blog.)

When let and const happen

let and const are different from var in a couple of ways. The way that's relevant to the question is that although the binding they define is created before any step-by-step code runs, it's not accessible until the let or const statement is reached.

So while this runs:

display(a);    // undefined
var a = 0;
display(a);    // 0

This throws an error:

display(a);    // ReferenceError: a is not defined
let a = 0;
display(a);

The other two ways that let and const differ from var, which aren't really relevant to the question, are:

1. var always applies to the entire execution context (throughout global code, or throughout function code in the function where it appears), but let and const apply only within the block where they appear. That is, var has function (or global) scope, but let and const have block scope.

2. Repeating var a in the same context is harmless, but if you have let a (or const a), having another let a or a const a or a var a is a syntax error.

Here's an example demonstrating that let and const take effect immediately in their block before any code within that block runs, but aren't accessible until the let or const statement:

var a = 0;
console.log(a);
if (true)
{
  console.log(a); // ReferenceError: a is not defined
  let a = 1;
  console.log(a);
}

Note that the second console.log fails, instead of accessing the a from outside the block.

Off-topic: Avoid cluttering the global object (window)

The window object gets very, very cluttered with properties. Whenever possible, strongly recommend not adding to the mess. Instead, wrap up your symbols in a little package and export at most one symbol to the window object. (I frequently don't export any symbols to the window object.) You can use a function to contain all of your code in order to contain your symbols, and that function can be anonymous if you like:

(function() {
    var a = 0; // `a` is NOT a property of `window` now

    function foo() {
        alert(a);   // Alerts "0", because `foo` can access `a`
    }
})();

In that example, we define a function and have it executed right away (the () at the end).

A function used in this way is frequently called a scoping function. Functions defined within the scoping function can access variables defined in the scoping function because they're closures over that data (see: Closures are not complicated on my anemic little blog).

Discord doesn't allow colored text. Though, currently, you have two options to "mimic" colored text.

Option #1 (Markdown code-blocks)

Discord supports Markdown and uses highlight.js to highlight code-blocks. Some programming languages have specific color outputs from highlight.js and can be used to mimic colored output.

To use code-blocks, send a normal message in this format (Which follows Markdown's standard format).

```language
message
```

Languages that currently reproduce nice colors: prolog (red/orange), css (yellow).

Option #2 (Embeds)

Discord now supports Embeds and Webhooks, which can be used to display colored blocks, they also support markdown. For documentation on how to use Embeds, please read your lib's documentation.

(Embed Cheat-sheet)

According to the manual this should work:

Custom key/value method:

You can include an operator in the first parameter in order to control the comparison:

$this->db->where('name !=', $name);
$this->db->where('id <', $id);
Produces: WHERE name != 'Joe' AND id < 45

Search for $this->db->where(); and look at item #2.

To move up a directory, the quickest way would be to add an alias to ~/.bash_profile

alias ..='cd ..'

and then one would need only to type '..[return]'.

Visual Studio 2019 seems to cause this for me. I fixed it by generating the edmx model again in 2017.

Tested with Swift 4 and iOS 12:

import UIKit
import AVFoundation
class ViewController: UIViewController{
    var player: AVAudioPlayer!
    override func viewDidLoad() {
        super.viewDidLoad()
    }

    func playTone(number: Int) {
        let path = Bundle.main.path(forResource: "note\(number)", ofType : "wav")!
        let url = URL(fileURLWithPath : path)
        do {
            player = try AVAudioPlayer(contentsOf: url)
            print ("note\(number)")
            player.play()
        }
        catch {
            print (error)
        }
    }

    @IBAction func notePressed(_ sender: UIButton) {
        playTone(number: sender.tag)
    }
}

###### Use paramiko to connect to LINUX platform############
import paramiko

ip='server ip'
port=22
username='username'
password='password'
ssh=paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(ip,port,username,password)

--------Connection Established-----------------------------

######To run shell commands on remote connection###########
import paramiko

ip='server ip'
port=22
username='username'
password='password'
ssh=paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(ip,port,username,password)


stdin,stdout,stderr=ssh.exec_command(cmd)
outlines=stdout.readlines()
resp=''.join(outlines)
print(resp) # Output 

"shutdown() doesn't actually close the file descriptor—it just changes its usability. To free a socket descriptor, you need to use close()."1

If you want time in 00:00 format: I solved it like that:

select strftime('%H:%M',CAST ((julianday(FinishTime) - julianday(StartTime)) AS REAL),'12:00') from something

If you're trying to just count how many of your cells in a range are not blank try this:

=COUNTA(range)

Example: (assume that it starts from A1 downwards):

---------    
Something 
---------
Something
---------

---------
Something
---------

---------
Something
---------

=COUNTA(A1:A6) returns 4 since there are two blank cells in there.

Here is the example of one Object, For your case you have to use JSONArray.

public static final String JSON_STRING="{\"employee\":{\"name\":\"Sachin\",\"salary\":56000}}";  
try{  
   JSONObject emp=(new JSONObject(JSON_STRING)).getJSONObject("employee");  
   String empname=emp.getString("name");  
   int empsalary=emp.getInt("salary");  

   String str="Employee Name:"+empname+"\n"+"Employee Salary:"+empsalary;  
   textView1.setText(str);  

}catch (Exception e) {e.printStackTrace();}  
   //Do when JSON has problem.
}

I don't have time but tried to give an idea. If you still can't do it, then I will help.

For Autodidacts:

function BaseClass(toBePrivate){
    var morePrivates;
    this.isNotPrivate = 'I know';
    // add your stuff
}
var o = BaseClass.prototype;
// add your prototype stuff
o.stuff_is_never_private = 'whatever_except_getter_and_setter';


// MiddleClass extends BaseClass
function MiddleClass(toBePrivate){
    BaseClass.call(this);
    // add your stuff
    var morePrivates;
    this.isNotPrivate = 'I know';
}
var o = MiddleClass.prototype = Object.create(BaseClass.prototype);
MiddleClass.prototype.constructor = MiddleClass;
// add your prototype stuff
o.stuff_is_never_private = 'whatever_except_getter_and_setter';



// TopClass extends MiddleClass
function TopClass(toBePrivate){
    MiddleClass.call(this);
    // add your stuff
    var morePrivates;
    this.isNotPrivate = 'I know';
}
var o = TopClass.prototype = Object.create(MiddleClass.prototype);
TopClass.prototype.constructor = TopClass;
// add your prototype stuff
o.stuff_is_never_private = 'whatever_except_getter_and_setter';


// to be continued...

Create "instance" with getter and setter:

function doNotExtendMe(toBePrivate){
    var morePrivates;
    return {
        // add getters, setters and any stuff you want
    }
}

Using a decorator for measuring execution time for functions can be handy. There is an example at http://www.zopyx.com/blog/a-python-decorator-for-measuring-the-execution-time-of-methods.

Below I've shamelessly pasted the code from the site mentioned above so that the example exists at SO in case the site is wiped off the net.

import time                                                

def timeit(method):

    def timed(*args, **kw):
        ts = time.time()
        result = method(*args, **kw)
        te = time.time()

        print '%r (%r, %r) %2.2f sec' % \
              (method.__name__, args, kw, te-ts)
        return result

    return timed

class Foo(object):

    @timeit
    def foo(self, a=2, b=3):
        time.sleep(0.2)

@timeit
def f1():
    time.sleep(1)
    print 'f1'

@timeit
def f2(a):
    time.sleep(2)
    print 'f2',a

@timeit
def f3(a, *args, **kw):
    time.sleep(0.3)
    print 'f3', args, kw

f1()
f2(42)
f3(42, 43, foo=2)
Foo().foo()

// John

I have set up Volley as a separate Project. That way its not tied to any project and exist independently.

I also have a Nexus server (Internal repo) setup so I can access volley as
compile 'com.mycompany.volley:volley:1.0.4' in any project I need.

Any time I update Volley project, I just need to change the version number in other projects.

I feel very comfortable with this approach.

There's a problem with ef seeding db from Startup.Configure in 2.0 ... you can still do it with this work around. Tested and worked fine

https://garywoodfine.com/how-to-seed-your-ef-core-database/

First of all, I suggest to modify a bit your sql query:

 select * from shift 
 where shift.shiftid not in (select employeeshift.shiftid from employeeshift 
                             where employeeshift.empid = 57);

This query provides same functionality. If you want to get the same result with LINQ, you can try this code:

//Variable dc has DataContext type here
//Here we get list of ShiftIDs from employeeshift table
List<int> empShiftIds = dc.employeeshift.Where(p => p.EmpID = 57).Select(s => s.ShiftID).ToList();

//Here we get the list of our shifts
List<shift> shifts = dc.shift.Where(p => !empShiftIds.Contains(p.ShiftId)).ToList();

function extractKeyValue(obj, value) {
    return Object.keys(obj)[Object.values(obj).indexOf(value)];
}

Made for closure compiler to extract key name which will be unknown after compilation

More sexy version but using future Object.entries function

function objectKeyByValue (obj, val) {
  return Object.entries(obj).find(i => i[1] === val);
}

Is there a way to handle form post data in a Web Api controller?

The normal approach in ASP.NET Web API is to represent the form as a model so the media type formatter deserializes it. Alternative is to define the actions's parameter as NameValueCollection:

public void Post(NameValueCollection formData)
{
  var value = formData["key"];
}

Difference is clear In builder pattern, builder will create specific type of object for you. You have to tell what builder has to build. In factory pattern , using abstract class you are directly building the specific object.

Here builder class acts as mediator between main class and specific type classes. More abstraction.

In angular 7+ which has built-in pipe

{{ yourText | titlecase  }}

As a fallback solution, you could wrap your classes in a parent element like this:

<div>
    <div>This text should appear as normal</div>
    <p>This text should be blue.</p>
    <div>
        <!-- first-child / first-of-type starts from here -->
        <p class="myclass1">This text should appear red.</p>
        <p class="myclass2">This text should appear green.</p>
    </div>
</div>

Wifi is not available on the emulator if you are using below of API level 25.

When using an AVD with API level 25 or higher, the emulator provides a simulated Wi-Fi access point ("AndroidWifi"), and Android automatically connects to it.

More Information: https://developer.android.com/studio/run/emulator.html#wifi

You could use "child process" module of nodejs to execute any shell commands or scripts with in nodejs. Let me show you with an example, I am running a shell script(hi.sh) with in nodejs.

hi.sh

echo "Hi There!"

node_program.js

const { exec } = require('child_process');
var yourscript = exec('sh hi.sh',
        (error, stdout, stderr) => {
            console.log(stdout);
            console.log(stderr);
            if (error !== null) {
                console.log(`exec error: ${error}`);
            }
        });

Here, when I run the nodejs file, it will execute the shell file and the output would be:

Run

node node_program.js

output

Hi There!

You can execute any script just by mentioning the shell command or shell script in exec callback.

Hope this helps! Happy coding :)

http://www.refulz.com:8082/index.php#tab2?foo=789

Property    Result
------------------------------------------
host        www.refulz.com:8082
hostname    www.refulz.com
port        8082
protocol    http:
pathname    index.php
href        http://www.refulz.com:8082/index.php#tab2
hash        #tab2
search      ?foo=789

var x = $(location).attr('<property>');

This will work only if you have jQuery. For example:

<html>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"></script>
<script>
  $(location).attr('href');      // http://www.refulz.com:8082/index.php#tab2
  $(location).attr('pathname');  // index.php
</script>
</html>

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)

Provided you're working in node or a browser with BigInt support, this version cuts costs by saving the expensive string construction for the very end:

const zero = 0n
const shift = 8n

function asciiToBinary (str) {
  const len = str.length
  let n = zero
  for (let i = 0; i < len; i++) {
    n = (n << shift) + BigInt(str.charCodeAt(i))
  }
  return n.toString(2).padStart(len * 8, 0)
}

It's about twice as fast as the other solutions mentioned here including this simple es6+ implementation:

const toBinary = s => [...s]
  .map(x => x
    .codePointAt()
    .toString(2)
    .padStart(8,0)
  )
  .join('')

If you need to handle unicode characters, here's this guy:

const zero = 0n
const shift = 8n
const bigShift = 16n
const byte = 255n

function unicodeToBinary (str) {
  const len = str.length
  let n = zero
  for (let i = 0; i < len; i++) {
    const bits = BigInt(str.codePointAt(i))
    n = (n << (bits > byte ? bigShift : shift)) + bits
  }
  const bin = n.toString(2)
  return bin.padStart(8 * Math.ceil(bin.length / 8), 0)
}

This is how you initialize and also you can use List.Add() in case you want to make it more dynamic.

List<string> optionList = new List<string> {"AdditionalCardPersonAdressType"};
optionList.Add("AutomaticRaiseCreditLimit");
optionList.Add("CardDeliveryTimeWeekDay");

In this way, if you are taking values in from IO, you can add it to a dynamically allocated list.

Use an iterator.

List comprehension:

>>> si = iter(['abcd', 'e', 'fg', 'hijklmn', 'opq', 'r'])
>>> [c+next(si, '') for c in si]
['abcde', 'fghijklmn', 'opqr']

• Very efficient for memory usage.
• Exactly one traversal of s

Generator expression:

>>> si = iter(['abcd', 'e', 'fg', 'hijklmn', 'opq', 'r'])
>>> pair_iter = (c+next(si, '') for c in si)
>>> pair_iter # can be used in a for loop
<generator object at 0x4ccaa8>
>>> list(pair_iter) 
['abcde', 'fghijklmn', 'opqr']

• use as an iterator

Using map, str.__add__, iter

>>> si = iter(['abcd', 'e', 'fg', 'hijklmn', 'opq', 'r'])
>>> map(str.__add__, si, si)
['abcde', 'fghijklmn', 'opqr']

next(iterator[, default]) is available starting in Python 2.6

You need to set permission for the user controls .

1. Goto C:\Program Files\
2. Right click java folder, click properties. Select the security tab.
3. There, click on "Edit" button, which will pop up PERMISSIONS FOR JAVA window.
4. Click on Add, which will pop up a new window. In that, in the "Enter object name" box, Enter your user account name, and click okay(if already exist, skip this step).
5. Now in "PERMISSIONS OF JAVA" window, you will see several clickable options like CREATOR OWNER, SYSTEM, among them is your username. Click on it, and check mark the FULL CONTROL option in Permissions for sub window.
6. Finally, Hit apply and okay.

Along the same lines as some of the suggestions you would need to do at least the following:

• Load some CSS dynamically through JavaScript
• Craft some print-specific CSS rules
• Apply your fancy CSS rules through JavaScript

An example CSS could be as simple as this:

@media print {
  body * {
    display:none;
  }

  body .printable {
    display:block;
  }
}

Your JavaScript would then only need to apply the "printable" class to your target div and it will be the only thing visible (as long as there are no other conflicting CSS rules -- a separate exercise) when printing happens.

<script type="text/javascript">
  function divPrint() {
    // Some logic determines which div should be printed...
    // This example uses div3.
    $("#div3").addClass("printable");
    window.print();
  }
</script>

You may want to optionally remove the class from the target after printing has occurred, and / or remove the dynamically-added CSS after printing has occurred.

Below is a full working example, the only difference is that the print CSS is not loaded dynamically. If you want it to really be unobtrusive then you will need to load the CSS dynamically like in this answer.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
  <head>
    <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
    <title>Print Portion Example</title>
    <style type="text/css">
      @media print {
        body * {
          display:none;
        }

        body .printable {
          display:block;
        }
      }
    </style>
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
  </head>

  <body>
    <h1>Print Section Example</h1>
    <div id="div1">Div 1</div>
    <div id="div2">Div 2</div>
    <div id="div3">Div 3</div>
    <div id="div4">Div 4</div>
    <div id="div5">Div 5</div>
    <div id="div6">Div 6</div>
    <p><input id="btnSubmit" type="submit" value="Print" onclick="divPrint();" /></p>
    <script type="text/javascript">
      function divPrint() {
        // Some logic determines which div should be printed...
        // This example uses div3.
        $("#div3").addClass("printable");
        window.print();
      }
    </script>
  </body>
</html>

The answer sounds silly but if you get the above error and wanna run the pg_dump for earlier version go to bin directory of postgres and type

./pg_dump servername > out.sql ./ ignores the root and looks for pg_dump in current directory

I clicked ‘Cancel Running’, opened the Devices list, unpaired my iPhone, removed my USB cable and reconnected it, paired the iPhone, and then was asked on my iPhone to enter my passcode ("pin code"). Did this and then was finally able to pair my phone correctly.

Use linq and set the data table as Enumerable and select the fields from the data table field that matches what you are looking for.

Example

I want to get the currency Id and currency Name from the currency table where currency is local currency, and assign the currency id and name to a text boxes on the form:

DataTable dt = curData.loadCurrency();
            var curId = from c in dt.AsEnumerable()
                        where c.Field<bool>("LocalCurrency") == true
                        select c.Field<int>("CURID");

            foreach (int cid in curId)
            {
                txtCURID.Text = cid.ToString();
            }
            var curName = from c in dt.AsEnumerable()
                          where c.Field<bool>("LocalCurrency") == true
                          select c.Field<string>("CurName");
            foreach (string cName in curName)
            {
                txtCurrency.Text = cName.ToString();
            }

You can easily customize the android Navigation drawer once you know how its implemented. here is a nice tutorial where you can set it up.

This will be the structure of your mainXML:

<android.support.v4.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!-- Framelayout to display Fragments -->
    <FrameLayout
        android:id="@+id/frame_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <!-- Listview to display slider menu -->
    <ListView
        android:id="@+id/list_slidermenu"
        android:layout_width="240dp"
        android:layout_height="match_parent"
        android:layout_gravity="right"
        android:choiceMode="singleChoice"
        android:divider="@color/list_divider"
        android:dividerHeight="1dp"        
        android:listSelector="@drawable/list_selector"
        android:background="@color/list_background"/>
</android.support.v4.widget.DrawerLayout>

You can customize this listview to your liking by adding the header. And radiobuttons.

#Single line

'''
multi-line
comment
'''

"""
also, 
multi-line comment
"""

<br> is an HTML element. There isn't any ASCII code for it.

But, for line break sometimes 
 is used as the text code.

Or <br>

You can check the text code here.

I haven't done time test with this but it was fun to try. Basically convert two columns to one column of tuples. Now convert that to a dataframe, do 'value_counts()' which finds the unique elements and counts them. Fiddle with zip again and put the columns in order you want. You can probably make the steps more elegant but working with tuples seems more natural to me for this problem

b = pd.DataFrame({'A':['yes','yes','yes','yes','no','no','yes','yes','yes','no'],'B':['yes','no','no','no','yes','yes','no','yes','yes','no']})

b['count'] = pd.Series(zip(*[b.A,b.B]))
df = pd.DataFrame(b['count'].value_counts().reset_index())
df['A'], df['B'] = zip(*df['index'])
df = df.drop(columns='index')[['A','B','count']]

I believe that before we started using ES6, an approach with a single var declaration was neither good nor bad (in case if you have linters and 'use strict'. It was really a taste preference. But now things changed for me. These are my thoughts in favour of multiline declaration:

1. Now we have two new kinds of variables, and var became obsolete. It is good practice to use const everywhere until you really need let. So quite often your code will contain variable declarations with assignment in the middle of the code, and because of block scoping you quite often will move variables between blocks in case of small changes. I think that it is more convenient to do that with multiline declarations.

2. ES6 syntax became more diverse, we got destructors, template strings, arrow functions and optional assignments. When you heavily use all those features with single variable declarations, it hurts readability.

Try using %0A in the URL, just like you've used %20 instead of the space character.

If you also need to overwrite files with read only flag use this:

def copyDirTree(root_src_dir,root_dst_dir):
"""
Copy directory tree. Overwrites also read only files.
:param root_src_dir: source directory
:param root_dst_dir:  destination directory
"""
for src_dir, dirs, files in os.walk(root_src_dir):
    dst_dir = src_dir.replace(root_src_dir, root_dst_dir, 1)
    if not os.path.exists(dst_dir):
        os.makedirs(dst_dir)
    for file_ in files:
        src_file = os.path.join(src_dir, file_)
        dst_file = os.path.join(dst_dir, file_)
        if os.path.exists(dst_file):
            try:
                os.remove(dst_file)
            except PermissionError as exc:
                os.chmod(dst_file, stat.S_IWUSR)
                os.remove(dst_file)

        shutil.copy(src_file, dst_dir)

You can check if a element is disabled or not with this:

if($("#slcCausaRechazo").prop('disabled') == false)
{
//your code to realice 
}

It's a logic bomb, it keeps recreating itself and takes up all your CPU resources. It overloads your computer with too many processes and it forces it to shut down. If you make a batch file with this in it and start it you can end it using taskmgr. You have to do this pretty quickly or your computer will be too slow to do anything.

Theoretically you can't. Java memory model prevents it. However, because Java has to be implemented, there are some caveats you can use. Depends on what you can use:

• If you can use native, you can allocate memory that you don not relinquish later.

• If that is not available, there is a dirty little secret about java that not much people know. You can ask for a direct access array that is not managed by GC, and therefor can be easily used to make a memory leak. This is provided by DirectByteBuffer (http://download.oracle.com/javase/1.5.0/docs/api/java/nio/ByteBuffer.html#allocateDirect(int)).

• If you can't use any of those, you still can make a memory leak by tricking the GC. The JVM is implemented using a Generational garbage collection. What this means is that the heap is divided into areas: young, adults and elders. An object when its created starts at the young area. As he is used more and more, he progresses into adults up to elders. An object that reaches the eldery area most likely will not be garbaged collected. You cannot be sure that an object is leaked and if you ask for a stop and clean GC it may clean it but for a long period of time he will be leaked. More info at (http://java.sun.com/docs/hotspot/gc1.4.2/faq.html)

• Also, class objects are not required to be GC'ed. Might me a way to do it.

You can get data from post response Headers in this way (Angular 6):

import { HttpClient, HttpHeaders, HttpResponse } from '@angular/common/http';

const httpOptions = {
  headers: new HttpHeaders({ 'Content-Type': 'application/json' }),
  observe: 'response' as 'response'
};

this.http.post(link,body,httpOptions).subscribe((res: HttpResponse<any>) => {
  console.log(res.headers.get('token-key-name'));
})

Please note that Arrays.stream(arr) create a LongStream (or IntStream, ...) instead of Stream so the map function cannot be used to modify the type. This is why .mapToLong, mapToObject, ... functions are provided.

Take a look at why-cant-i-map-integers-to-strings-when-streaming-from-an-array

Here is example of using aggregation API. To complicate the case we're grouping by case-insensitive words from array property of the document.

db.articles.aggregate([
    {
        $match: {
            keywords: { $not: {$size: 0} }
        }
    },
    { $unwind: "$keywords" },
    {
        $group: {
            _id: {$toLower: '$keywords'},
            count: { $sum: 1 }
        }
    },
    {
        $match: {
            count: { $gte: 2 }
        }
    },
    { $sort : { count : -1} },
    { $limit : 100 }
]);

that give result such as

{ "_id" : "inflammation", "count" : 765 }
{ "_id" : "obesity", "count" : 641 }
{ "_id" : "epidemiology", "count" : 617 }
{ "_id" : "cancer", "count" : 604 }
{ "_id" : "breast cancer", "count" : 596 }
{ "_id" : "apoptosis", "count" : 570 }
{ "_id" : "children", "count" : 487 }
{ "_id" : "depression", "count" : 474 }
{ "_id" : "hiv", "count" : 468 }
{ "_id" : "prognosis", "count" : 428 }

This loops vertically but might work for you.

int rtn = 0;    
foreach(int[] L in lists){
    for(int i = 0; i<L.Length;i++){
          rtn = L[i];
      //Do something with rtn
    }
}

in asp.net mvc2 i use something like this:

return File(
    tempFile
    , "application/octet-stream"
    , HttpUtility.UrlPathEncode(fileName)
    );

I guess if you don't use mvc(2) you could just encode the filename using

HttpUtility.UrlPathEncode(fileName)

A rough description of how a system takes any recursive function and executes it using a stack:

This intended to show the idea without details. Consider this function that would print out nodes of a graph:

function show(node)
0. if isleaf(node):
1.  print node.name
2. else:
3.  show(node.left)
4.  show(node)
5.  show(node.right)

For example graph: A->B A->C show(A) would print B, A, C

Function calls mean save the local state and the continuation point so you can come back, and then jump the the function you want to call.

For example, suppose show(A) begins to run. The function call on line 3. show(B) means - Add item to the stack meaning "you'll need to continue at line 2 with local variable state node=A" - Goto line 0 with node=B.

To execute code, the system runs through the instructions. When a function call is encountered, the system pushes information it needs to come back to where it was, runs the function code, and when the function completes, pops the information about where it needs to go to continue.

I am a fan of Cmder, a package including clink, conemu, msysgit, and some cosmetic enhancements.

http://cmder.net/

https://github.com/cmderdev/cmder

https://chocolatey.org/packages/Cmder

Same Object Not Found problem here - both in Xampp as well as in Wamp. It turns out the root name of "phpmyadmin" was "PhpMyAdmin". I got rid of all the capitals, renaming the folder to "phpmyadmin", and after a couple of reloads phpmyadmin was working.

In addition to kieran's answer, apparently, modern browsers have an Object.keys function. In this case, you could do this:

Object.keys(jsonArray).length;

More details in this answer on How to list the properties of a javascript object

Set the value from code on showing the form, not in the design-timeProperties for the text box.

Private Sub UserForm_Activate()
    Me.txtDate.Value = Format(Date, "mm/dd/yy")
End Sub

The reason why Ng-Bind is better because,

When Your page is not Loaded or when your internet is slow or when your website loaded half, then you can see these type of issues (Check the Screen Shot with Read mark) will be triggered on Screen which is Completly weird. To avoid such we should use Ng-bind

Absolute positioning positions an element relative to its nearest positioned ancestor. So put position: relative on the container, then for child elements, top and left will be relative to the top-left of the container so long as the child elements have position: absolute. More information is available in the CSS 2.1 specification.

Remove [selected] from option tag:

<option *ngFor="let opt of question.options" [value]="opt.key">
  {{opt.selected+opt.value}}
</option>

And in your form builder add:

key: this.question.options.filter(val => val.selected === true).map(data => data.key)

This piece of code computes the transposed inverse of the matrix A:

double determinant =    +A(0,0)*(A(1,1)*A(2,2)-A(2,1)*A(1,2))
                        -A(0,1)*(A(1,0)*A(2,2)-A(1,2)*A(2,0))
                        +A(0,2)*(A(1,0)*A(2,1)-A(1,1)*A(2,0));
double invdet = 1/determinant;
result(0,0) =  (A(1,1)*A(2,2)-A(2,1)*A(1,2))*invdet;
result(1,0) = -(A(0,1)*A(2,2)-A(0,2)*A(2,1))*invdet;
result(2,0) =  (A(0,1)*A(1,2)-A(0,2)*A(1,1))*invdet;
result(0,1) = -(A(1,0)*A(2,2)-A(1,2)*A(2,0))*invdet;
result(1,1) =  (A(0,0)*A(2,2)-A(0,2)*A(2,0))*invdet;
result(2,1) = -(A(0,0)*A(1,2)-A(1,0)*A(0,2))*invdet;
result(0,2) =  (A(1,0)*A(2,1)-A(2,0)*A(1,1))*invdet;
result(1,2) = -(A(0,0)*A(2,1)-A(2,0)*A(0,1))*invdet;
result(2,2) =  (A(0,0)*A(1,1)-A(1,0)*A(0,1))*invdet;

Though the question stipulated non-singular matrices, you might still want to check if determinant equals zero (or very near zero) and flag it in some way to be safe.

This works:

function getBreakText($t) {
    return strtr($t, array('\\r\\n' => '<br>', '\\r' => '<br>', '\\n' => '<br>'));
}

Map<K,V> is an interface, HashMap<K,V> is a class that implements Map.

you can do

Map<Key,Value> map = new HashMap<Key,Value>();

Here you have a link to the documentation of each one: Map, HashMap.

Using the stat to figure out the last modification date of the file, date to figure out the current time and a liberal use of bashisms, one can do the test that you want based on the file's last modification time¹.

if [ "$(( $(date +"%s") - $(stat -c "%Y" $somefile) ))" -gt "7200" ]; then
   echo "$somefile is older then 2 hours"
fi

While the code is a bit less readable then the find approach, I think its a better approach then running find to look at a file you already "found". Also, date manipulation is fun ;-)

1. As Phil correctly noted creation time is not recorded, but use %Z instead of %Y below to get "change time" which may be what you want.

[Update]

For mac users, use stat -f "%m" $somefile instead of the Linux specific syntax above

I'm using Eclipse and I copied your code and got the same error. I then opened up the project properties->Java Build Path -> Libraries->Add External JARs... c:\jrun4\lib\sqlitejdbc-v056.jar Worked like a charm. You may need to restart your web server if you've just copied the .jar file.

I find the best (and least frustrating) path is to start with Allow from All, then, when you know it will work that way, scale it back to the more secure Allow from 127.0.0.1 or Allow from ::1 (localhost).

As long as your firewall is configured properly, Allow from all shouldn't cause any problems, but it is better to only allow from localhost if you don't need other computers to be able to access your site.

Don't forget to restart Apache whenever you make changes to httpd.conf. They will not take effect until the next start.

Hopefully this is enough to get you started, there is lots of documentation available online.

In IntelliJ 14 it has moved again somewhat down the menu.

Now we have it unter Editor -> General -> Appearance

It's actually really easy. Highlight the DATE column and make sure that its set as date in Excel. Highlight everything you want to change, Then go to [DATA]>[SORT]>[COLUMN] and set sorting by date. Hope it helps.

I like Surreal Dream's answer but I found that my "doneTyping" function would fire for every keypress, i.e. if you type "Hello" really quickly; instead of firing just once when you stop typing, the function would fire 5 times.

The problem was that the javascript setTimeout function doesn't appear to overwrite or kill the any old timeouts that have been set, but if you do it yourself it works! So I just added a clearTimeout call just before the setTimeout if the typingTimer is set. See below:

//setup before functions
var typingTimer;                //timer identifier
var doneTypingInterval = 5000;  //time in ms, 5 second for example

//on keyup, start the countdown
$('#myInput').on("keyup", function(){
    if (typingTimer) clearTimeout(typingTimer);                 // Clear if already set     
    typingTimer = setTimeout(doneTyping, doneTypingInterval);
});

//on keydown, clear the countdown 
$('#myInput').on("keydown", function(){
    clearTimeout(typingTimer);
});

//user is "finished typing," do something
function doneTyping () {
    //do something
}

N.B. I would have liked to have just added this as a comment to Surreal Dream's answer but I'm a new user and don't have enough reputation. Sorry!

In my case, I want to skip the Pods folder when cloning the project. I did step by step like below and it works for me. Hope it helps.

mkdir my_folder
cd my_folder
git init
git remote add origin -f <URL>
git config core.sparseCheckout true 
echo '!Pods/*\n/*' > .git/info/sparse-checkout
git pull origin master

Memo, If you want to skip more folders, just add more line in sparse-checkout file.

I definitely agree that this is perfect for an extension method, but I think it can be improved a bit.

public static string Remove(this string source, string remove,  int firstN)
    {
        if(firstN <= 0 || string.IsNullOrEmpty(source) || string.IsNullOrEmpty(remove))
        {
            return source;
        }
        int index = source.IndexOf(remove);
        return index < 0 ? source : source.Remove(index, remove.Length).Remove(remove, --firstN);
    }

This does a bit of recursion which is always fun.

Here is a simple unit test as well:

   [TestMethod()]
    public void RemoveTwiceTest()
    {
        string source = "look up look up look it up";
        string remove = "look";
        int firstN = 2;
        string expected = " up  up look it up";
        string actual;
        actual = source.Remove(remove, firstN);
        Assert.AreEqual(expected, actual);

    }

I had the same issue in VS2015. I have solved it by compiling the SDL2 sources in VS2015.

1. Go to http://libsdl.org/download-2.0.php and download SDL 2 source code.
2. Open SDL_VS2013.sln in VS2015. You will be asked to convert the projects. Do it.
3. Compile SDL2 project.
4. Compile SDL2main project.
5. Use the new generated output files SDL2main.lib, SDL2.lib and SDL2.dll in your SDL 2 project in VS2015.

If you use ==, php treats an empty string or array as null. To make the distinction between null and empty, either use === or is_null. So:

if($a === NULL) or if(is_null($a))

That pattern will create a new execution context (EC) in which any local variable objects (VO's) will live, and will likewise die when the EC exits. The only exception to this lifetime is for VO's which become part of a closure.

Please note that JavaScript has no magic "init" function. You might associate this pattern with such since most any self-respecting JS library (jQuery, YUI, etc.) will do this so that they don't pollute the global NS more than they need to.

A demonstration:

var x = 1; // global VO
(function(){        
    var x = 2; // local VO
})();
x == 1; // global VO, unchanged by the local VO

The 2nd set of "brackets" (those are actually called parens, or a set of parentheses), are simply to invoke the function expression directly preceding it (as defined by the prior set of parenthesis).

var results = list.GroupBy(x => x.Category)
            .Select(g => g.OrderBy(x => x.SortByProp).FirstOrDefault());

For those wondering how to do this for groups that are not necessarily sorted correctly, here's an expansion of this answer that uses method syntax to customize the sort order of each group and hence get the desired record from each.

Note: If you're using LINQ-to-Entities you will get a runtime exception if you use First() instead of FirstOrDefault() here as the former can only be used as a final query operation.

Rather than a brute force loop through the list (eg 1 to 10000), rather use an iterative search approach : The List needs to be sorted by the element to be tested.

Start search at the middle element size()/2 eg 5000 if search item greater than element at 5000, then test the element at the midpoint between the upper(10000) and midpoint(5000) - 7500

keep doing this until you reach the match (or use a brute force loop through once you get down to a smaller range (eg 20 items)

You can search a list of 10000 in around 13 to 14 tests, rather than potentially 9999 tests.

Use querySelector insted of getElementById();

var c = document.querySelector('#mainContent');
    c.appendChild(document.createElement('div'));

It looks like Angular has support for this now.

From the latest (v1.2.0) docs for $routeProvider.when(path, route):

path can contain optional named groups with a question mark (:name?)

If I invoke clone() method on array of Objects of type A, how will it clone its elements?

The elements of the array will not be cloned.

Will the copy be referencing to the same objects?

Yes.

Or will it call (element of type A).clone() for each of them?

No, it will not call clone() on any of the elements.

With new Android 11 you can debug your apps over WiFi without using an USB cable at all.

Quoting from Android Studio User Guide

Connect to a device over Wi-Fi (Android 11+)

Android 11 and higher support deploying and debugging your app wirelessly from your workstation using Android Debug Bridge (adb). For example, you can deploy your debuggable app to multiple remote devices without physically connecting your device via USB. This eliminates the need to deal with common USB connection issues, such as driver installation.

To use wireless debugging, you need to pair your device to your workstation using a pairing code. Your workstation and device must be connected to the same wireless network. To connect to your device, follow these steps:

1. On your workstation, update to the latest version of the SDK Platform-Tools.
2. On the device, enable developer options.
3. Enable the Wireless debugging option.
4. On the dialog that asks Allow wireless debugging on this network?, click Allow.
5. Select Pair device with pairing code. Take note of the pairing code, IP address, and port number displayed on the device (see image).
6. On your workstation, open a terminal and navigate to android_sdk/platform-tools.
7. Run adb pair ipaddr:port. Use the IP address and port number from step 5.
8. When prompted, enter the pairing code that you received in step 5. A message indicates that your device has been successfully paired.

    none
    Enter pairing code: 482924
    Successfully paired to 192.168.1.130:37099 [guid=adb-235XY] 

9. (For Linux or Microsoft Windows only) Run adb connect ipaddr:port. Use the IP address and port under Wireless debugging.

You can use lambda to pass a reference to the window object as argument to close_window function:

button = Button (frame, text="Good-bye.", command = lambda: close_window(window))

This works because the command attribute is expecting a callable, or callable like object. A lambda is a callable, but in this case it is essentially the result of calling a given function with set parameters.

In essence, you're calling the lambda wrapper of the function which has no args, not the function itself.

I'm not really sure if I got your question right. Maybe something like

public class CommentsController : Controller
{
    [HttpPost]
    public ActionResult WriteComment(CommentModel comment)
    {
        // Do the basic model validation and other stuff
        try
        {
            if (ModelState.IsValid )
            {
                 // Insert the model to database like:
                 db.Comments.Add(comment);
                 db.SaveChanges();

                 // Pass the comment's article id to the read action
                 return RedirectToAction("Read", "Articles", new {id = comment.ArticleID});
            }
        }
        catch ( Exception e )
        {
             throw e;
        }
        // Something went wrong
        return View(comment);

    }
}


public class ArticlesController : Controller
{
    // id is the id of the article
    public ActionResult Read(int id)
    {
        // Get the article from database by id
        var model = db.Articles.Find(id);
        // Return the view
        return View(model);
    }
}

If you're using version 3.x of Bootstrap, the correct way to do this now is:

$('#myModal').on('hidden.bs.modal', function (e) {
  // do something...
})

Scroll down to the events section to learn more.

http://getbootstrap.com/javascript/#modals-usage

This appears to remain unchanged for whenever version 4 releases (http://v4-alpha.getbootstrap.com/components/modal/#events), but if it does I'll be sure to update this post with the relevant information.