Here is a solution using functions plot(), polygon() and lines().

 set.seed(1234)
 df <- data.frame(x =1:10,
                 F =runif(10,1,2),
                 L =runif(10,0,1),
                 U =runif(10,2,3))


 plot(df$x, df$F, ylim = c(0,4), type = "l")
 #make polygon where coordinates start with lower limit and 
 # then upper limit in reverse order
 polygon(c(df$x,rev(df$x)),c(df$L,rev(df$U)),col = "grey75", border = FALSE)
 lines(df$x, df$F, lwd = 2)
 #add red lines on borders of polygon
 lines(df$x, df$U, col="red",lty=2)
 lines(df$x, df$L, col="red",lty=2)

Now use example data provided by OP in another question:

   Lower <- c(0.418116841, 0.391011834, 0.393297710,
        0.366144073,0.569956636,0.224775521,0.599166016,0.512269587,
        0.531378573, 0.311448219, 0.392045751,0.153614913, 0.366684097,
        0.161100849,0.700274810,0.629714150, 0.661641288, 0.533404093,
        0.412427559, 0.432905333, 0.525306427,0.224292061,
        0.28893064,0.099543648, 0.342995605,0.086973739,0.289030388,
        0.081230826,0.164505624, -0.031290586,0.148383474,0.070517523,0.009686605,
        -0.052703529,0.475924192,0.253382210, 0.354011010,0.130295355,0.102253218,
        0.446598823,0.548330752,0.393985810,0.481691632,0.111811248,0.339626541,
        0.267831909,0.133460254,0.347996621,0.412472322,0.133671128,0.178969601,0.484070587,
        0.335833224,0.037258467, 0.141312363,0.361392799,0.129791998,
        0.283759439,0.333893418,0.569533076,0.385258093,0.356201955,0.481816148,
        0.531282473,0.273126565,0.267815691,0.138127486,0.008865700,0.018118398,0.080143484,
        0.117861634,0.073697418,0.230002398,0.105855042,0.262367348,0.217799352,0.289108011,
        0.161271889,0.219663224,0.306117717,0.538088622,0.320711912,0.264395149,0.396061543,
        0.397350946,0.151726970,0.048650180,0.131914718,0.076629840,0.425849394,
        0.068692279,0.155144797,0.137939059,0.301912657,-0.071415593,-0.030141781,0.119450922,
        0.312927614,0.231345972)

 Upper.limit <- c(0.6446223,0.6177311, 0.6034427, 0.5726503,
      0.7644718, 0.4585430, 0.8205418, 0.7154043,0.7370033,
      0.5285199, 0.5973728, 0.3764209, 0.5818298,
      0.3960867,0.8972357, 0.8370151, 0.8359921, 0.7449118,
      0.6152879, 0.6200704, 0.7041068, 0.4541011, 0.5222653,
      0.3472364, 0.5956551, 0.3068065, 0.5112895, 0.3081448,
      0.3745473, 0.1931089, 0.3890704, 0.3031025, 0.2472591,
      0.1976092, 0.6906118, 0.4736644, 0.5770463, 0.3528607,
      0.3307651, 0.6681629, 0.7476231, 0.5959025, 0.7128883,
      0.3451623, 0.5609742, 0.4739216, 0.3694883, 0.5609220,
      0.6343219, 0.3647751, 0.4247147, 0.6996334, 0.5562876,
      0.2586490, 0.3750040, 0.5922248, 0.3626322, 0.5243285,
      0.5548211, 0.7409648, 0.5820070, 0.5530232, 0.6863703,
      0.7206998, 0.4952387, 0.4993264, 0.3527727, 0.2203694,
      0.2583149, 0.3035342, 0.3462009, 0.3003602, 0.4506054,
      0.3359478, 0.4834151, 0.4391330, 0.5273411, 0.3947622,
      0.4133769, 0.5288060, 0.7492071, 0.5381701, 0.4825456,
      0.6121942, 0.6192227, 0.3784870, 0.2574025, 0.3704140,
      0.2945623, 0.6532694, 0.2697202, 0.3652230, 0.3696383,
      0.5268808, 0.1545602, 0.2221450, 0.3553377, 0.5204076,
      0.3550094)

  Fitted.values<- c(0.53136955, 0.50437146, 0.49837019,
  0.46939721, 0.66721423, 0.34165926, 0.70985388, 0.61383696,
  0.63419092, 0.41998407, 0.49470927, 0.26501789, 0.47425695,
  0.27859380, 0.79875525, 0.73336461, 0.74881668, 0.63915795,
  0.51385774, 0.52648789, 0.61470661, 0.33919656, 0.40559797,
  0.22339000, 0.46932536, 0.19689011, 0.40015996, 0.19468781,
  0.26952645, 0.08090917, 0.26872696, 0.18680999, 0.12847285,
  0.07245286, 0.58326799, 0.36352329, 0.46552867, 0.24157804,
  0.21650915, 0.55738088, 0.64797691, 0.49494416, 0.59728999,
  0.22848680, 0.45030036, 0.37087676, 0.25147426, 0.45445930,
  0.52339711, 0.24922310, 0.30184215, 0.59185198, 0.44606040,
  0.14795374, 0.25815819, 0.47680880, 0.24621212, 0.40404398,
  0.44435727, 0.65524894, 0.48363255, 0.45461258, 0.58409323,
  0.62599114, 0.38418264, 0.38357103, 0.24545011, 0.11461756,
  0.13821664, 0.19183886, 0.23203127, 0.18702881, 0.34030391,
  0.22090140, 0.37289121, 0.32846615, 0.40822456, 0.27801706,
  0.31652008, 0.41746184, 0.64364785, 0.42944100, 0.37347037,
  0.50412786, 0.50828681, 0.26510696, 0.15302635, 0.25116438,
  0.18559609, 0.53955941, 0.16920626, 0.26018389, 0.25378867,
  0.41439675, 0.04157232, 0.09600163, 0.23739430, 0.41666762,
  0.29317767)

Assemble into a data frame (no x provided, so using indices)

 df2 <- data.frame(x=seq(length(Fitted.values)),
                    fit=Fitted.values,lwr=Lower,upr=Upper.limit)
 plot(fit~x,data=df2,ylim=range(c(df2$lwr,df2$upr)))
 #make polygon where coordinates start with lower limit and then upper limit in reverse order
 with(df2,polygon(c(x,rev(x)),c(lwr,rev(upr)),col = "grey75", border = FALSE))
 matlines(df2[,1],df2[,-1],
          lwd=c(2,1,1),
          lty=1,
          col=c("black","red","red"))

Indeed, the compiler doesn't know how to convert this anonymous type (the new { x.ServerName, x.ProcessID, x.Username } part) to a PInfo object.

var dataset = entities.processlists
    .Where(x => x.environmentID == environmentid && x.ProcessName == processname && x.RemoteIP == remoteip && x.CommandLine == commandlinepart)
    .Select(x => new { x.ServerName, x.ProcessID, x.Username }).ToList();

This gives you a list of objects (of anonymous type) you can use afterwards, but you can't return that or pass that to another method.

If your PInfo object has the right properties, it can be like this :

var dataset = entities.processlists
    .Where(x => x.environmentID == environmentid && x.ProcessName == processname && x.RemoteIP == remoteip && x.CommandLine == commandlinepart)
    .Select(x => new PInfo 
                 { 
                      ServerName = x.ServerName, 
                      ProcessID = x.ProcessID, 
                      UserName = x.Username 
                 }).ToList();

Assuming that PInfo has at least those three properties.

Both query allow you to fetch only the wanted columns, but using an existing type (like in the second query) allows you to send this data to other parts of your app.

PDO driver for PostgreSQL is now included in the debian package php5-dev. The above steps using Pecl no longer works.

The best solution is toString (as stated above):

function getRealObjectType(obj: {}): string {
    return Object.prototype.toString.call(obj).match(/\[\w+ (\w+)\]/)[1].toLowerCase();
}

FAIR WARNING: toString considers NaN a number so you must manually safeguard later with Number.isNaN(value).

The other solution suggested, using Object.getPrototypeOf fails with null and undefined

As mentioned in other answers, you can use set to list all the environment variables or use

set [environment_variable] to get a specific variable with its value.

set [environment_variable]= can be used to remove a variable from the workspace.

Use break.

Unrelated to your question, I see in your code the line:

Violated = !(name.firstname == null) ? false : true;

In this line, you take a boolean value (name.firstname == null). Then, you apply the ! operator to it. Then, if the value is true, you set Violated to false; otherwise to true. So basically, Violated is set to the same value as the original expression (name.firstname == null). Why not use that, as in:

Violated = (name.firstname == null);

Part of the answer to 'handle' the 'Sequence has no elements' Exception in VB is to test for empty

If Not (myMap Is Nothing) Then
' execute code
End if

Where MyMap is the sequence queried returning empty/null. FYI

1. The .git at the end of the repository name is just a convention. Typically, on git servers repositories are kept in directories named project.git. The git client and protocol honours this convention by testing for project.git when only project is specified.

2. git://[email protected]/peter/first_app.git is not a valid git url. git repositories can be identified and accessed via various url schemes specified here. [email protected]:peter/first_app.git is the ssh url mentioned on that page.

3. git is flexible. It allows you to track your local branch against almost any branch of any repository. While master (your local default branch) tracking origin/master (the remote default branch) is a popular situation, it is not universal. Many a times you may not want to do that. This is why the first git push is so verbose. It tells git what to do with the local master branch when you do a git pull or a git push.

4. The default for git push and git pull is to work with the current branch's remote. This is a better default than origin master. The way git push determines this is explained here.

git is fairly elegant and comprehensible but there is a learning curve to walk through.

To hide text from html use text-indent property in css

.classname {
 text-indent: -9999px;
 white-space: nowrap; 
}

/* for dynamic text you need to add white-space, so your applied css will not disturb. nowrap means text will never wrap to the next line, the text continues on the same line until a <br> tag is encountered

Example for Transaction

begin tran tt

Your sql statements

if error occurred rollback tran tt else commit tran tt

As long as you have not executed commit tran tt , data will not be changed

Here is the official documentation of ArrayList.get().

Anyway it is very simple, for example

ArrayList list = new ArrayList();
list.add("1");
list.add("2");
list.add("3");
String str = (String) list.get(0); // here you get "1" in str

If you have a SSHClient, you can also use open_sftp():

import paramiko


# lets say you have SSH client...
client = paramiko.SSHClient()

sftp = client.open_sftp()

# then you can use upload & download as shown above
...

For cases of appending to end of existing string:

string = "Sec_"
string += "C_type"
print(string)

results in

Sec_C_type

If you're looking for a way to immutably change the collection (as I was when I found your question), you might take a look at immutability-helper, a library forked from the original React util. In your case, you would accomplish what you mentioned via the following:

var update = require('immutability-helper')
var arr = [{id: 1, name: "Person 1"}, {id:2, name:"Person 2"}]
var newArray = update(arr, { 0: { name: { $set: 'New Name' } } })
//=> [{id: 1, name: "New Name"}, {id:2, name:"Person 2"}]

You can use CURL for this purpose see the example code:

$url = "your url";    
$content = json_encode("your data to be sent");

$curl = curl_init($url);
curl_setopt($curl, CURLOPT_HEADER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HTTPHEADER,
        array("Content-type: application/json"));
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $content);

$json_response = curl_exec($curl);

$status = curl_getinfo($curl, CURLINFO_HTTP_CODE);

if ( $status != 201 ) {
    die("Error: call to URL $url failed with status $status, response $json_response, curl_error " . curl_error($curl) . ", curl_errno " . curl_errno($curl));
}


curl_close($curl);

$response = json_decode($json_response, true);

You could use CAST or CONVERT:

SELECT CAST(MyVarcharCol AS INT) FROM Table

SELECT CONVERT(INT, MyVarcharCol) FROM Table

This answer will work to get just the text for any HTML element.

This first parameter "node" is the element to get the text from. The second parameter is optional and if true will add a space between the text within elements if no space would otherwise exist there.

function getTextFromNode(node, addSpaces) {
    var i, result, text, child;
    result = '';
    for (i = 0; i < node.childNodes.length; i++) {
        child = node.childNodes[i];
        text = null;
        if (child.nodeType === 1) {
            text = getTextFromNode(child, addSpaces);
        } else if (child.nodeType === 3) {
            text = child.nodeValue;
        }
        if (text) {
            if (addSpaces && /\S$/.test(result) && /^\S/.test(text)) text = ' ' + text;
            result += text;
        }
    }
    return result;
}

This works perfectly for me

<span>
    <input  type="file" 
            style="visibility:hidden; width: 1px;" 
            id='${multipartFilePath}' name='${multipartFilePath}'  
            onchange="$(this).parent().find('span').html($(this).val().replace('C:\\fakepath\\', ''))"  /> <!-- Chrome security returns 'C:\fakepath\'  -->
    <input class="btn btn-primary" type="button" value="Upload File.." onclick="$(this).parent().find('input[type=file]').click();"/> <!-- on button click fire the file click event -->
    &nbsp;
    <span  class="badge badge-important" ></span>
</span>

if you are using same date format and have select query where date in oracle :

   select count(id) from Table_name where TO_DATE(Column_date)='07-OCT-2015';

To_DATE provided by oracle

I'm not sure if your problem is being caused by the same reason that mine was, but I too was experiencing a hanging "npm install" and was able to fix it.

In my case, I wanted to install typescript locally in the project:

npm i typescript --save-dev

For some reason this was conflicting with a global install of typescript that I had, and the shell was just hanging forever instead of finishing or erroring...

I fixing it by first removing the globally installed typescript with the -g global flag:

npm uninstall typescript -g

After doing this the first command worked!

Ref and Out Parameters:

The out and the ref parameters are used to return values in the same variable, that you pass as an argument of a method. These both parameters are very useful when your method needs to return more than one value.

You must assigned value to out parameter in calee method body, otherwise the method won't get compiled.

Ref Parameter : It has to be initialized before passing to the Method. The ref keyword on a method parameter causes a method to refer to the same variable that was passed as an input parameter for the same method. If you do any changes to the variable, they will be reflected in the variable.

int sampleData = 0; 
sampleMethod(ref sampleData);

Ex of Ref Parameter

public static void Main() 
{ 
 int i = 3; // Variable need to be initialized 
 sampleMethod(ref i );  
}

public static void sampleMethod(ref int sampleData) 
{ 
 sampleData++; 
} 

Out Parameter : It is not necessary to be initialized before passing to Method. The out parameter can be used to return the values in the same variable passed as a parameter of the method. Any changes made to the parameter will be reflected in the variable.

 int sampleData; 
 sampleMethod(out sampleData);

Ex of Out Parameter

public static void Main() 
{ 
 int i, j; // Variable need not be initialized 
 sampleMethod(out i, out j); 
} 
public static int sampleMethod(out int sampleData1, out int sampleData2) 
{ 
 sampleData1 = 10; 
 sampleData2 = 20; 
 return 0; 
} 

Is it correct to do the following?

IF EXISTS(SELECT *
          FROM   dbo.Scores)
  DROP TABLE dbo.Scores

No. That will drop the table only if it contains any rows (and will raise an error if the table does not exist).

Instead, for a permanent table you can use

IF OBJECT_ID('dbo.Scores', 'U') IS NOT NULL 
  DROP TABLE dbo.Scores; 

Or, for a temporary table you can use

IF OBJECT_ID('tempdb.dbo.#TempTableName', 'U') IS NOT NULL
  DROP TABLE #TempTableName; 

SQL Server 2016+ has a better way, using DROP TABLE IF EXISTS …. See the answer by @Jovan.

I think what you are trying to achieve can simply be done like this :

While you are compiling the coffeescript, use the "-b" parameter.

-b / --bare Compile the JavaScript without the top-level function safety wrapper.

So something like this : coffee -b --compile somefile.coffee whatever.js

This will output your code just like in the CoffeeScript.org site.

If you have a backup SQL file then you can easily Restore it. Just follow the instructions, given in the below

1. At first, create a database using pgAdmin or whatever you want (for example my_db is our created db name)
2. Now Open command line window
3. Go to Postgres bin folder. For example:  cd "C:\ProgramFiles\PostgreSQL\pg10\bin"
4. Enter the following command to restore your database: psql.exe -U postgres -d my_db -f D:\Backup\backup_file_name.sql 

Type password for your postgres user if needed and let Postgres to do its work. Then you can check the restore process.

Are you using Windows Forms? If you've added the image using the Properties/Resources UI, you get access to the image from generated code, so you can simply do this:

var bmp = new Bitmap(WindowsFormsApplication1.Properties.Resources.myimage);

I would like to share an answer that also demonstrates approach using the Android SDK provided by the Ubuntu repository:

Install Android SDK

sudo apt-get install android-sdk

Export environmental variables

export ANDROID_HOME="/usr/lib/android-sdk/"
export PATH="${PATH}:${ANDROID_HOME}tools/:${ANDROID_HOME}platform-tools/"

I guess this will help you.

JSONObject jsonObj = new JSONObject(jsonStr);

JSONArray ja_data = jsonObj.getJSONArray("data");
int length = jsonObj.length();
for(int i=0; i<length; i++) {
  JSONObject jsonObj = ja_data.getJSONObject(i);
  Toast.makeText(this, jsonObj.getString("Name"), Toast.LENGTH_LONG).show();

  // getting inner array Ingredients
  JSONArray ja = jsonObj.getJSONArray("Ingredients");
  int len = ja.length();

  ArrayList<String> Ingredients_names = new ArrayList<>();
  for(int j=0; j<len; j++) {
    JSONObject json = ja.getJSONObject(j);
    Ingredients_names.add(json.getString("name"));
  }
}

try .\properties\files\ListStopWords.txt

1. Make sure that you have Office runtime installed on the server.
2. If you are using Windows Server 2008 then using office interops is a lenghty configuration and here are the steps.

Better is to move to Open XML or you can configure as below

• Install MS Office Pro Latest (I used 2010 Pro)
• Create User ExcelUser. Assign WordUser with Admin Group
• Go to Computer -> Manage
• Add User with below options
• User Options Password Never Expires
• Password Cannot Be Change

Com+ Configuration

• Go to Control Panel - > Administrator -> Component Services -> DCOM Config
• Open Microsoft Word 97 - 2003 Properties
• General -> Authentication Level : None
• Security -> Customize all 3 permissions to allow everyone
• Identity -> This User -> Use ExcelUser /password
• Launch the Excel App to make sure everything is fine

3.Change the security settings of Microsoft Excel Application in DCOM Config.

Controlpanel --> Administrative tools-->Component Services -->computers --> myComputer -->DCOM Config --> Microsoft Excel Application.

Right click to get properties dialog. Go to Security tab and customize permissions

See the posts here: Error while creating Excel object , Excel manipulations in WCF using COM

Look in your settings.xml (or, possibly your project's parent or corporate parent POM) for the <repositories> element. It will look something like the below.

<repositories>
    <repository>
        <id>central</id>
        <url>http://gotoNexus</url>
        <snapshots>
            <enabled>true</enabled>
            <updatePolicy>always</updatePolicy>
        </snapshots>
        <releases>
            <enabled>true</enabled>
            <updatePolicy>daily</updatePolicy>
        </releases>
    </repository>
</repositories>

Note the <updatePolicy> element. The example tells Maven to contact the remote repo (Nexus in my case, Maven Central if you're not using your own remote repo) any time Maven needs to retrieve a snapshot artifact during a build, checking to see if there's a newer copy. The metadata is required for this. If there is a newer copy Maven downloads it to your local repo.

In the example, for releases, the policy is daily so it will check during your first build of the day. never is also a valid option, as described in Maven settings docs.

Plugins are resolved separately. You may have repositories configured for those as well, with different update policies if desired.

<pluginRepositories>
    <pluginRepository>
        <id>central</id>
        <url>http://gotoNexus</url>
        <snapshots>
            <enabled>true</enabled>
            <updatePolicy>daily</updatePolicy>
        </snapshots>
        <releases>
            <enabled>true</enabled>
            <updatePolicy>never</updatePolicy>
        </releases>
    </pluginRepository>
</pluginRepositories>

Someone else mentioned the -o option. If you use that, Maven runs in "offline" mode. It knows it has a local repo only, and it won't contact the remote repo to refresh the artifacts no matter what update policies you use.

Answer above is not suitable for complicate Linq expression. All you need is:

// set up the "main query"
var test = from p in _db.test select _db.test;
// if str1 is not null, add a where-condition
if(str1 != null)
{
    test = test.Where(p => p.test == str);
}

Another way is using a ResourceBundle. Basically you get the bundle using its name without the '.properties'

private static final ResourceBundle resource = ResourceBundle.getBundle("config");

And you recover any value using this:

private final String prop = resource.getString("propName");

Inspired by the equation style provided in this answer, a more generic approach (more than one predictor + latex output as option) can be:

print_equation= function(model, latex= FALSE, ...){
    dots <- list(...)
    cc= model$coefficients
    var_sign= as.character(sign(cc[-1]))%>%gsub("1","",.)%>%gsub("-"," - ",.)
    var_sign[var_sign==""]= ' + '

    f_args_abs= f_args= dots
    f_args$x= cc
    f_args_abs$x= abs(cc)
    cc_= do.call(format, args= f_args)
    cc_abs= do.call(format, args= f_args_abs)
    pred_vars=
        cc_abs%>%
        paste(., x_vars, sep= star)%>%
        paste(var_sign,.)%>%paste(., collapse= "")

    if(latex){
        star= " \\cdot "
        y_var= strsplit(as.character(model$call$formula), "~")[[2]]%>%
            paste0("\\hat{",.,"_{i}}")
        x_vars= names(cc_)[-1]%>%paste0(.,"_{i}")
    }else{
        star= " * "
        y_var= strsplit(as.character(model$call$formula), "~")[[2]]        
        x_vars= names(cc_)[-1]
    }

    equ= paste(y_var,"=",cc_[1],pred_vars)
    if(latex){
        equ= paste0(equ," + \\hat{\\varepsilon_{i}} \\quad where \\quad \\varepsilon \\sim \\mathcal{N}(0,",
                    summary(MetamodelKdifEryth)$sigma,")")%>%paste0("$",.,"$")
    }
    cat(equ)
}

The model argument expects an lm object, the latex argument is a boolean to ask for a simple character or a latex-formated equation, and the ... argument pass its values to the format function.

I also added an option to output it as latex so you can use this function in a rmarkdown like this:

```{r echo=FALSE, results='asis'}
print_equation(model = lm_mod, latex = TRUE)
```

Now using it:

df <- data.frame(x = c(1:100))
df$y <- 2 + 3 * df$x + rnorm(100, sd = 40)
df$z <- 8 + 3 * df$x + rnorm(100, sd = 40)
lm_mod= lm(y~x+z, data = df)

print_equation(model = lm_mod, latex = FALSE)

This code yields: y = 11.3382963933174 + 2.5893419 * x + 0.1002227 * z

And if we ask for a latex equation, rounding the parameters to 3 digits:

print_equation(model = lm_mod, latex = TRUE, digits= 3)

This yields:

• Debug: fine-grained statements concerning program state, typically used for debugging;

• Info: informational statements concerning program state, representing program events or behavior tracking;

• Warn: statements that describe potentially harmful events or states in the program;

• Error: statements that describe non-fatal errors in the application; this level is used quite often for logging handled exceptions;

• Fatal: statements representing the most severe of error conditions, assumedly resulting in program termination.

Found on http://www.beefycode.com/post/Log4Net-Tutorial-pt-1-Getting-Started.aspx

user287724's answer gives the following example of the book and author relationship:

A book however is written by an author, and the author could have written multiple books. But the book needs to be written by an author it cannot exist without an author. Therefore the relationship between the book and the author is an identifying relationship.

This is a very confusing example and is definitely not a valid example for an identifying relationship.

Yes, a book can not be written without at least one author, but the author(it's foreign key) of the book is NOT IDENTIFYING the book in the books table!

You can remove the author (FK) from the book row and still can identify the book row by some other field (ISBN, ID, ...etc) , BUT NOT the author of the book!!

I think a valid example of an identifying relationship would be the relationship between (products table) and a (specific product details table) 1:1

products table
+------+---------------+-------+--------+
|id(PK)|Name           |type   |amount  |
+------+---------------+-------+--------+
|0     |hp-laser-510   |printer|1000    |
+------+---------------+-------+--------+
|1     |viewsonic-10   |screen |900     |
+------+---------------+-------+--------+
|2     |canon-laser-100|printer|200     |
+------+---------------+-------+--------+

printers_details table
+--------------+------------+---------+---------+------+
|Product_ID(FK)|manufacturer|cartridge|color    |papers|
+--------------+------------+---------+---------+------+
|0             |hp          |CE210    |BLACK    |300   |
+--------------+------------+---------+---------+------+
|2             |canon       |MKJ5     |COLOR    |900   |
+--------------+------------+---------+---------+------+
* please note this is not real data

In this example the Product_ID in the printers_details table is considered a FK references the products.id table and ALSO a PK in the printers_details table , this is an identifying relationship because the Product_ID(FK) in the printers table IS IDENTIFYING the row inside the child table, we can't remove the product_id from the child table because we can't identify the row any more because we lost it's primary key

If you want to put it in 2 lines:

an identifying relationship is the relationship when the FK in the child table is considered a PK(or identifier) in the child table while still references the parent table

Another example may be when you have 3 tables (imports - products - countries) in an imports and exports for some country database

The import table is the child that has these fields(the product_id(FK), the country_id(FK) , the amount of the imports , the price , the units imported , the way of transport(air, sea) ) we may use the (product_id, thecountry_id`) to identify each row of the imports "if they all in the same year" here the both columns can compose together a primary key in the child table(imports) and also referencing there parent tables.

Please I'm happy I finally understand the concept of the identifying relationship and non identifying relationship, so please don't tell me I'm wrong with all of these vote ups for a completely invalid example

Yes logically a book can't be written without an author but a book can be identified without the author,In fact it can't be identified with the author!

You can 100% remove the author from the book row and still can identify the book!.

Use herDatabase
GO ; 

Code says to execute the instructions above the GO marker. My default database is myDatabase, so instead of using myDatabase GO and makes current query to use herDatabase

to your surprise, you do need to declare variable for workbook and worksheet in excel 2007 or later version. Just add single line expression.

Sub kl()

    Set ws = ThisWorkbook.Sheets("name")
    ws.select
End Sub

Remove everything else and enjoy. But why to select a sheet? selection of sheets is now old fashioned for calculation and manipulation. Just add formula like this

Sub kl()

    Set ws = ThisWorkbook.Sheets("name")
    ws.range("cell reference").formula = "your formula"
'OR in case you are using copy paste formula, just use 'insert or formula method instead of ActiveSheet.paste e.g.:
   ws.range("your cell").formula
'or
   ws.colums("your col: one col e.g. "A:A").insert
'if you need to clear the previous value, just add the following above insert line
   ws.columns("your column").delete

End Sub

If you take a look at the official docs, you'll see right below append, extend. That's what your looking for.

There's also itertools.chain if you are more interested in efficient iteration than ending up with a fully populated data structure.

We are working on a framework for strict REST services, check out http://prestans.googlecode.com

Its in early Alpha at the moment, we are testing against mod_wsgi and Google's AppEngine.

Looking for testers and feedback. Thanks.

Try this:

str.replace(/\s/g, "X")

You can use the diff-tree command with the -c flag. This command shows you what files have changed in the merge commit.

git diff-tree -c {merged_commit_sha}

I got the -c flag's description from Git-Scm:

This flag changes the way a merge commit is displayed (which means it is useful only when the command is given one , or --stdin). It shows the differences from each of the parents to the merge result simultaneously instead of showing pairwise diff between a parent and the result one at a time (which is what the -m option does). Furthermore, it lists only files which were modified from all parents.

Give a different alias

SELECT  Convert(varchar,A.InsertDate,103) as converted_Tran_Date from table as A
order by A.InsertDate 

Maybe std::ostream_iterator and std::ostringstream:

#include <vector>
#include <string>
#include <algorithm>
#include <sstream>
#include <iterator>
#include <iostream>

int main()
{
  std::vector<int> vec;
  vec.push_back(1);
  vec.push_back(4);
  vec.push_back(7);
  vec.push_back(4);
  vec.push_back(9);
  vec.push_back(7);

  std::ostringstream oss;

  if (!vec.empty())
  {
    // Convert all but the last element to avoid a trailing ","
    std::copy(vec.begin(), vec.end()-1,
        std::ostream_iterator<int>(oss, ","));

    // Now add the last element with no delimiter
    oss << vec.back();
  }

  std::cout << oss.str() << std::endl;
}

date_part(text, timestamp)

e.g.

date_part('month', timestamp '2001-02-16 20:38:40'),
date_part('year', timestamp '2001-02-16 20:38:40') 

http://www.postgresql.org/docs/8.0/interactive/functions-datetime.html

Since aa is the set/object that might be null, can you check aa == null ?

(aa / xx might be interchangeable (a typo in the question); the original question talks about xx but only defines aa)

i.e.

select new {
    AssetID = x.AssetID,
    Status = aa == null ? (bool?)null : aa.Online; // a Nullable<bool>
}

or if you want the default to be false (not null):

select new {
    AssetID = x.AssetID,
    Status = aa == null ? false : aa.Online;
}

Update; in response to the downvote, I've investigated more... the fact is, this is the right approach! Here's an example on Northwind:

        using(var ctx = new DataClasses1DataContext())
        {
            ctx.Log = Console.Out;
            var qry = from boss in ctx.Employees
                      join grunt in ctx.Employees
                          on boss.EmployeeID equals grunt.ReportsTo into tree
                      from tmp in tree.DefaultIfEmpty()
                      select new
                             {
                                 ID = boss.EmployeeID,
                                 Name = tmp == null ? "" : tmp.FirstName
                        };
            foreach(var row in qry)
            {
                Console.WriteLine("{0}: {1}", row.ID, row.Name);
            }
        }

And here's the TSQL - pretty much what we want (it isn't ISNULL, but it is close enough):

SELECT [t0].[EmployeeID] AS [ID],
    (CASE
        WHEN [t2].[test] IS NULL THEN CONVERT(NVarChar(10),@p0)
        ELSE [t2].[FirstName]
     END) AS [Name]
FROM [dbo].[Employees] AS [t0]
LEFT OUTER JOIN (
    SELECT 1 AS [test], [t1].[FirstName], [t1].[ReportsTo]
    FROM [dbo].[Employees] AS [t1]
    ) AS [t2] ON ([t0].[EmployeeID]) = [t2].[ReportsTo]
-- @p0: Input NVarChar (Size = 0; Prec = 0; Scale = 0) []
-- Context: SqlProvider(Sql2008) Model: AttributedMetaModel Build: 3.5.30729.1

QED?

This is what worked for me:

In the build.gradle file, setting the minSdkVersion under defaultConfig:

Good Luck...

When you pass a lambda to sort, you need to return an integer, not a boolean. So your code should instead read as follows:

xs.sort(lambda x,y: cmp(len(x), len(y)))

Note that cmp is a builtin function such that cmp(x, y) returns -1 if x is less than y, 0 if x is equal to y, and 1 if x is greater than y.

Of course, you can instead use the key parameter:

xs.sort(key=lambda s: len(s))

This tells the sort method to order based on whatever the key function returns.

EDIT: Thanks to balpha and Ruslan below for pointing out that you can just pass len directly as the key parameter to the function, thus eliminating the need for a lambda:

xs.sort(key=len)

And as Ruslan points out below, you can also use the built-in sorted function rather than the list.sort method, which creates a new list rather than sorting the existing one in-place:

print(sorted(xs, key=len))

If you want to do it by ClassName you could do:

<script type="text/javascript">
function hideTd(className){
    var elements;

    if (document.getElementsByClassName)
    {
        elements = document.getElementsByClassName(className);
    }
    else
    {
        var elArray = [];
        var tmp = document.getElementsByTagName(elements);  
        var regex = new RegExp("(^|\\s)" + className+ "(\\s|$)");
        for ( var i = 0; i < tmp.length; i++ ) {

            if ( regex.test(tmp[i].className) ) {
                elArray.push(tmp[i]);
            }
        }

        elements = elArray;
    }

    for(var i = 0, i < elements.length; i++) {
       if( elements[i].textContent == ''){
          elements[i].style.display = 'none';
       } 
    }

  }
</script>

Set column as unique in SQL Server from the GUI:

They really make you run around the barn to do it with the GUI:

Make sure your column does not violate the unique constraint before you begin.

1. Open SQL Server Management Studio.
2. Right click your Table, click "Design".
3. Right click the column you want to edit, a popup menu appears, click Indexes/Keys.
4. Click the "Add" Button.
5. Expand the "General" tab.
6. Make sure you have the column you want to make unique selected in the "columns" box.
7. Change the "Type" box to "Unique Key".
8. Click "Close".
9. You see a little asterisk in the file window, this means changes are not yet saved.
10. Press Save or hit Ctrl+s. It should save, and your column should be unique.

Or set column as unique from the SQL Query window:

alter table location_key drop constraint pinky;
alter table your_table add constraint pinky unique(yourcolumn);

Changes take effect immediately:

Command(s) completed successfully.

git commit -C HEAD --amend will do what you want. The -C option takes the metadata from another commit.

1. A keystore contains private keys. You only need this if you are a server, or if the server requires client authentication.

2. A truststore contains CA certificates to trust. If your server’s certificate is signed by a recognized CA, the default truststore that ships with the JRE will already trust it (because it already trusts trustworthy CAs), so you don’t need to build your own, or to add anything to the one from the JRE.

Source

Go to project folder in command prompt or in Project Terminal.

Run cmd : ng g c componentname

I implemented a rooted tree as a dictionary {child:parent}. So for instance with the root node 0, a tree might look like that:

tree={1:0, 2:0, 3:1, 4:2, 5:3}

This structure made it quite easy to go upward along a path from any node to the root, which was relevant for the problem I was working on.

I had this problem with bundles having incorrect path's to images and CssRewriteUrlTransform not resolving relative parent paths .. correctly (there was also problem with external resources like webfonts). That's why I wrote this custom transform (appears to do all of the above correctly):

public class CssRewriteUrlTransform2 : IItemTransform
{
    public string Process(string includedVirtualPath, string input)
    {
        var pathParts = includedVirtualPath.Replace("~/", "/").Split('/');
        pathParts = pathParts.Take(pathParts.Count() - 1).ToArray();
        return Regex.Replace
        (
            input,
            @"(url\(['""]?)((?:\/??\.\.)*)(.*?)(['""]?\))",
            m => 
            {
                // Somehow assigning this to a variable is faster than directly returning the output
                var output =
                (
                    // Check if it's an aboslute url or base64
                    m.Groups[3].Value.IndexOf(':') == -1 ?
                    (
                        m.Groups[1].Value +
                        (
                            (
                                (
                                    m.Groups[2].Value.Length > 0 ||
                                    !m.Groups[3].Value.StartsWith('/')
                                )
                            ) ?
                            string.Join("/", pathParts.Take(pathParts.Count() - m.Groups[2].Value.Count(".."))) :
                            ""
                        ) +
                        (!m.Groups[3].Value.StartsWith('/') ? "/" + m.Groups[3].Value : m.Groups[3].Value) +
                        m.Groups[4].Value
                    ) :
                    m.Groups[0].Value
                );
                return output;
            }
        );
    }
}

Edit: I didn't realize it, but I used some custom extension methods in the code. The source code of those is:

/// <summary>
/// Based on: http://stackoverflow.com/a/11773674
/// </summary>
public static int Count(this string source, string substring)
{
    int count = 0, n = 0;

    while ((n = source.IndexOf(substring, n, StringComparison.InvariantCulture)) != -1)
    {
        n += substring.Length;
        ++count;
    }
    return count;
}

public static bool StartsWith(this string source, char value)
{
    if (source.Length == 0)
    {
        return false;
    }
    return source[0] == value;
}

Of course it should be possible to replace String.StartsWith(char) with String.StartsWith(string).

Just in case you have a preference for how negative numbers are formatted:

p "%x" % -1   #=> "..f"
p -1.to_s(16) #=> "-1"

git-bash reports fatal: Unable to create <Path to git repo>/.git/index.lock: File exists.

Deleting index.lock makes the error go away.

You can use negated character classes to exclude certain characters: for example [^abcde] will match anything but a,b,c,d,e characters.

Instead of specifying all the characters literally, you can use shorthands inside character classes: [\w] (lowercase) will match any "word character" (letter, numbers and underscore), [\W] (uppercase) will match anything but word characters; similarly, [\d] will match the 0-9 digits while [\D] matches anything but the 0-9 digits, and so on.

If you use PHP you can take a look at the regex character classes documentation.

You have to use new operator here to instantiate. For example:

Contacts.add(new Data(name, address, contact));

I just hit this issue myself, and neither this nor any of the other answers on the net solved my issue. For me it was a strange one whereby the virtual directory had been created on a different branch in another source control server (basically, we upgraded from TFS 2010 to 2013) and the solution somehow remembered it's mapping.

Anyway, I clicked the "Create Virtual Directory" button again, in the Properties of the Service project. It gave me a message about being mapped to a different folder and would I like to update it. I clicked yes, and that fixed the issue.

$("#selectsearch").change(function() {
  var action = $(this).val() == "people" ? "user" : "content";
  $("#search-form").attr("action", "/search/" + action);
});

If you use Python 3.6 (possibly 3.5 or later), it doesn't give that error to me anymore. I had a similar issue, because I was using v3.4, but it went away after I uninstalled and reinstalled.

We can get a list of files inside a folder on the file system using various golang standard library functions.

1. filepath.Walk
2. ioutil.ReadDir
3. os.File.Readdir

package main

import (
    "fmt"
    "io/ioutil"
    "log"
    "os"
    "path/filepath"
)

func main() {
    var (
        root  string
        files []string
        err   error
    )

    root := "/home/manigandan/golang/samples"
    // filepath.Walk
    files, err = FilePathWalkDir(root)
    if err != nil {
        panic(err)
    }
    // ioutil.ReadDir
    files, err = IOReadDir(root)
    if err != nil {
        panic(err)
    }
    //os.File.Readdir
    files, err = OSReadDir(root)
    if err != nil {
        panic(err)
    }

    for _, file := range files {
        fmt.Println(file)
    }
}

1. Using filepath.Walk

The path/filepath package provides a handy way to scan all the files in a directory, it will automatically scan each sub-directories in the directory.

func FilePathWalkDir(root string) ([]string, error) {
    var files []string
    err := filepath.Walk(root, func(path string, info os.FileInfo, err error) error {
        if !info.IsDir() {
            files = append(files, path)
        }
        return nil
    })
    return files, err
}

2. Using ioutil.ReadDir

ioutil.ReadDir reads the directory named by dirname and returns a list of directory entries sorted by filename.

func IOReadDir(root string) ([]string, error) {
    var files []string
    fileInfo, err := ioutil.ReadDir(root)
    if err != nil {
        return files, err
    }

    for _, file := range fileInfo {
        files = append(files, file.Name())
    }
    return files, nil
}

3. Using os.File.Readdir

Readdir reads the contents of the directory associated with file and returns a slice of up to n FileInfo values, as would be returned by Lstat, in directory order. Subsequent calls on the same file will yield further FileInfos.

func OSReadDir(root string) ([]string, error) {
    var files []string
    f, err := os.Open(root)
    if err != nil {
        return files, err
    }
    fileInfo, err := f.Readdir(-1)
    f.Close()
    if err != nil {
        return files, err
    }

    for _, file := range fileInfo {
        files = append(files, file.Name())
    }
    return files, nil
}

Benchmark results.

Get more details on this Blog Post

Even this works.

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true" android:drawable="@color/dim_orange_btn_pressed" />
    <item android:state_focused="true" android:drawable="@color/dim_orange_btn_pressed" />
    <item android:drawable="@android:color/white" />
</selector>

I added the android:drawable attribute to each item, and their values are colors.

By the way, why do they say that color is one of the attributes of selector? They don't write that android:drawable is required.

Color State List Resource

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
    <item
        android:color="hex_color"
        android:state_pressed=["true" | "false"]
        android:state_focused=["true" | "false"]
        android:state_selected=["true" | "false"]
        android:state_checkable=["true" | "false"]
        android:state_checked=["true" | "false"]
        android:state_enabled=["true" | "false"]
        android:state_window_focused=["true" | "false"] />
</selector>

Workstation has some features that Player lacks, such as teams (groups of VMs connected by private LAN segments) and multi-level snapshot trees. It's aimed at power users and developers; they even have some hooks for using a debugger on the host to debug code in the VM (including kernel-level stuff). The core technology is the same, though.

This should be

$endOfCycle=date('Y-m-d', strtotime("+30 days"));

strtotime

expects to be given a string containing a US English date format and will try to parse that format into a Unix timestamp (the number of seconds since January 1 1970 00:00:00 UTC), relative to the timestamp given in now, or the current time if now is not supplied.

while

date

Returns a string formatted according to the given format string using the given integer timestamp or the current time if no timestamp is given.

See the manual pages for:

• http://www.php.net/manual/en/function.strtotime.php
• http://www.php.net/manual/en/function.date.php

File modification:

ls -t

Inode change:

ls -tc

File access:

ls -tu

"Newest" one at the bottom:

ls -tr

None of this is a creation time. Most Unix filesystems don't support creation timestamps.

If you don't wan't to use ng-model there is ng-value you can try.

Here's the fiddle for this: http://jsfiddle.net/Rg9sG/1/

<form id="yourFormName" >
<input type="text" value="" id="val1">
<input type="text" value="" id="val2">
<input type="text" value="" id="val3">
<button type="button" onclick="yourFunction()"> Check </button>
</form>
<script type="text/javascript">
function yourFunction()
{
  var elements = document.querySelectorAll("#yourFormName input[type=text]")
  console.log(elements);
  for (var i = 0; i<elements.length; i++ )
  {
    var check = document.getElementById(elements[i].id).value);
    console.log(check);
    // write your logic here
  }
}
</script>

This is the code I use for creating an index sheet.

Sub CreateIndexSheet()
    Dim wSheet As Worksheet
    ActiveWorkbook.Sheets.Add(Before:=Worksheets(1)).Name = "Contents" 'Call whatever you like
    Range("A1").Select
    Application.ScreenUpdating = False 'Prevents seeing all the flashing as it updates the sheet
    For Each wSheet In Worksheets
        ActiveSheet.Hyperlinks.Add Anchor:=Selection, Address:="", SubAddress:="'" & wSheet.Name & "'" & "!A1", TextToDisplay:=wSheet.Name
        ActiveCell.Offset(1, 0).Select 'Moves down a row
    Next
    Range("A1").EntireColumn.AutoFit
    Range("A1").EntireRow.Delete 'Remove content sheet from content list
    Application.ScreenUpdating = True
End Sub

select P.*,
A.Street,
A.City,
A.State
from Preson P
inner join Address A on P.id=A.Person_id
where A.Zip=97229
Order by A.Street,A.City,A.State

$(".nav li").click(function() {
    if ($(".nav li").removeClass("active")) {
        $(this).removeClass("active");
    }
    $(this).addClass("active");
});

This is what I came up with. It checks if the "li" element has the class of active, if it doesn't it skips the remove class part. I'm a bit late to the party, but hope this helps. :)

public List<Student> findStudentByReports(Date startDate, Date endDate) {
    System.out.println("call findStudentMethd******************with this pattern"
                    + startDate
                    + endDate
                    + "*********************************************");

    return em
            .createQuery(
                    "' select attendence from Attendence attendence where attendence.admissionDate BETWEEN : startDate '' AND endDate ''"
                            + "'")
            .setParameter("startDate", startDate, TemporalType.DATE)
            .setParameter("endDate", endDate, TemporalType.DATE)
            .getResultList();

}

I have it. Try the following:

<html>
<head>
<style type='text/css'>

    ol { counter-reset: item; }

    li { display: block; }

    li:before { content: counter(item) ")"; counter-increment: item; 
        display: inline-block; width: 50px; }

</style>
</head>
<body>
<ol>
    <li>Something</li>
    <li>Something</li>
    <li>Something</li>
    <li>Something</li>
    <li>Something</li>
    <li>Something</li>
    <li>Something</li>
    <li>Something</li>
    <li>Something</li>
    <li>Something</li>
    <li>Something</li>
    <li>Something</li>
</ol>
</body>

The catch is that this definitely won't work on older or less compliant browsers: display: inline-block is a very new property.

None of the 'overflow' solutions worked for me. I'm coding a parallax effect with JavaScript using jQuery. In Chrome and Safari on OSX the elastic/rubber-band effect was messing up my scroll numbers, since it actually scrolls past the document's height and updates the window variables with out-of-boundary numbers. What I had to do was check if the scrolled amount was larger than the actual document's height, like so:

$(window).scroll(
    function() {
        if ($(window).scrollTop() + $(window).height() > $(document).height()) return;
        updateScroll(); // my own function to do my parallaxing stuff
    }
);

In an IRB context, you can use the following to get the files in the current directory:

file_names = `ls`.split("\n")

You can make this work on other directories too:

file_names = `ls ~/Documents`.split("\n")

You could use:

DELETE FROM tableName
where your_date_column < '2009-01-01';

but Keep in mind that the above is really

DELETE FROM tableName
    where your_date_column < '2009-01-01 00:00:00';

Not

 DELETE FROM tableName
        where your_date_column < '2009-01-01 11:59';

Just use plt.tight_layout() before plt.show(). It works well.

You should be able to set these via the attr() or prop() functions in jQuery as shown below:

jQuery (< 1.7):

// This will disable just the div
$("#dcacl").attr('disabled','disabled');

or

// This will disable everything contained in the div
$("#dcacl").children().attr("disabled","disabled");

jQuery (>= 1.7):

// This will disable just the div
$("#dcacl").prop('disabled',true);

or

// This will disable everything contained in the div
$("#dcacl").children().prop('disabled',true);

or

//  disable ALL descendants of the DIV
$("#dcacl *").prop('disabled',true);

Javascript:

// This will disable just the div
document.getElementById("dcalc").disabled = true;

or

// This will disable all the children of the div
var nodes = document.getElementById("dcalc").getElementsByTagName('*');
for(var i = 0; i < nodes.length; i++){
     nodes[i].disabled = true;
}

I was able to slightly improve Jai's answer to work in the case of you having more than one button dropdown with a pretty good presentation that works with bootstrap 3:

Code for The Button

<div class="btn-group">
  <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">
    Option: <span class="selection">Option 1</span><span class="caret"></span>
  </button>
  <ul class="dropdown-menu" role="menu">
    <li><a href="#">Option 1</a></li>
    <li><a href="#">Option 2</a></li>
    <li><a href="#">Option 3</a></li>
  </ul>
</div>

JQuery Snippet

$(".dropdown-menu li a").click(function(){

  $(this).parents(".btn-group").find('.selection').text($(this).text());
  $(this).parents(".btn-group").find('.selection').val($(this).text());

});

I also added a 5px margin-right to the "selection" class.

Get number of threads using jstack

jstack <PID> | grep 'java.lang.Thread.State' | wc -l

The result of the above code is quite different from top -H -p <PID> or ps -o nlwp <PID> because jstack gets only threads from created by the application.

In other words, jstack will not get GC threads

I tried all of the suggestions above and none of them worked for me, they changed the clientWidth and clientHeight not the actual width and height.

The jQuery docs for $().width and height methods says: "Note that .width("value") sets the content width of the box regardless of the value of the CSS box-sizing property."

The css approach did the same thing so I had to use the $().attr() methods instead.

_canvas.attr('width', 100);
_canvas.attr('height', 200);

I don't know is this affect me because I was trying to resize a element and it is some how different or not.

There isn't direct support for COUNT(DISTINCT {x})), but you can simulate it from an IGrouping<,> (i.e. what group by returns); I'm afraid I only "do" C#, so you'll have to translate to VB...

 select new
 {
     Foo= grp.Key,
     Bar= grp.Select(x => x.SomeField).Distinct().Count()
 };

Here's a Northwind example:

    using(var ctx = new DataClasses1DataContext())
    {
        ctx.Log = Console.Out; // log TSQL to console
        var qry = from cust in ctx.Customers
                  where cust.CustomerID != ""
                  group cust by cust.Country
                  into grp
                  select new
                  {
                      Country = grp.Key,
                      Count = grp.Select(x => x.City).Distinct().Count()
                  };

        foreach(var row in qry.OrderBy(x=>x.Country))
        {
            Console.WriteLine("{0}: {1}", row.Country, row.Count);
        }
    }

The TSQL isn't quite what we'd like, but it does the job:

SELECT [t1].[Country], (
    SELECT COUNT(*)
    FROM (
        SELECT DISTINCT [t2].[City]
        FROM [dbo].[Customers] AS [t2]
        WHERE ((([t1].[Country] IS NULL) AND ([t2].[Country] IS NULL)) OR (([t1]
.[Country] IS NOT NULL) AND ([t2].[Country] IS NOT NULL) AND ([t1].[Country] = [
t2].[Country]))) AND ([t2].[CustomerID] <> @p0)
        ) AS [t3]
    ) AS [Count]
FROM (
    SELECT [t0].[Country]
    FROM [dbo].[Customers] AS [t0]
    WHERE [t0].[CustomerID] <> @p0
    GROUP BY [t0].[Country]
    ) AS [t1]
-- @p0: Input NVarChar (Size = 0; Prec = 0; Scale = 0) []
-- Context: SqlProvider(Sql2008) Model: AttributedMetaModel Build: 3.5.30729.1

The results, however, are correct- verifyable by running it manually:

        const string sql = @"
SELECT c.Country, COUNT(DISTINCT c.City) AS [Count]
FROM Customers c
WHERE c.CustomerID != ''
GROUP BY c.Country
ORDER BY c.Country";
        var qry2 = ctx.ExecuteQuery<QueryResult>(sql);
        foreach(var row in qry2)
        {
            Console.WriteLine("{0}: {1}", row.Country, row.Count);
        }

With definition:

class QueryResult
{
    public string Country { get; set; }
    public int Count { get; set; }
}

This code (example) :

    Chronology ch1 = GregorianChronology.getInstance();     Chronology ch2 = ISOChronology.getInstance();      DateTime dt = new DateTime("2013-12-31T22:59:21+01:00",ch1);     DateTime dt2 = new DateTime("2013-12-31T22:59:21+01:00",ch2);      System.out.println(dt);     System.out.println(dt2);      boolean b = dt.equals(dt2);      System.out.println(b); 

Will print :

2013-12-31T16:59:21.000-05:00 2013-12-31T16:59:21.000-05:00 false 

You are probably comparing two DateTimes with same date but different Chronology.

Here's a simple example with no jQuery. Use URL.createObjectURL, which

creates a DOMString containing a URL representing the object given in the parameter

Then, you can simply set the src of the image to that url:

window.addEventListener('load', function() {
  document.querySelector('input[type="file"]').addEventListener('change', function() {
      if (this.files && this.files[0]) {
          var img = document.querySelector('img');
          img.onload = () => {
              URL.revokeObjectURL(img.src);  // no longer needed, free memory
          }

          img.src = URL.createObjectURL(this.files[0]); // set src to blob url
      }
  });
});

<input type='file' />
<br><img id="myImg" src="#">

Short and universal approach

If you want to check any array if it has falsy values (like false, undefined, null or empty strings) you can just use every() method like this:

array.every(function(element) {return !!element;}); // returns true or false

For example:

['23', null, 2, {key: 'value'}].every(function(element) {return !!element;}); // returns false

['23', '', 2, {key: 'value'}].every(function(element) {return !!element;}); // returns false

['23', true, 2, {key: 'value'}].every(function(element) {return !!element;}); // returns true

If you need to get a first index of falsy value, you can do it like this:

let falsyIndex; 

if(!['23', true, 2, null, {key: 'value'}].every(function(element, index) {falsyIndex = index; return !!element;})) {
  console.log(falsyIndex);
} // logs 3

If you just need to check a falsy value of an array for a given index you can just do it like this:

if (!!array[index]) {
  // array[index] is a correct value
}
else {
  // array[index] is a falsy value
}

I know you asked for GET and POST but I will provide CRUD since others may need this just in case: (this was tested in Python 3.7)

#!/usr/bin/env python3
import http.client
import json

print("\n GET example")
conn = http.client.HTTPSConnection("httpbin.org")
conn.request("GET", "/get")
response = conn.getresponse()
data = response.read().decode('utf-8')
print(response.status, response.reason)
print(data)


print("\n POST example")
conn = http.client.HTTPSConnection('httpbin.org')
headers = {'Content-type': 'application/json'}
post_body = {'text': 'testing post'}
json_data = json.dumps(post_body)
conn.request('POST', '/post', json_data, headers)
response = conn.getresponse()
print(response.read().decode())
print(response.status, response.reason)


print("\n PUT example ")
conn = http.client.HTTPSConnection('httpbin.org')
headers = {'Content-type': 'application/json'}
post_body ={'text': 'testing put'}
json_data = json.dumps(post_body)
conn.request('PUT', '/put', json_data, headers)
response = conn.getresponse()
print(response.read().decode(), response.reason)
print(response.status, response.reason)


print("\n delete example")
conn = http.client.HTTPSConnection('httpbin.org')
headers = {'Content-type': 'application/json'}
post_body ={'text': 'testing delete'}
json_data = json.dumps(post_body)
conn.request('DELETE', '/delete', json_data, headers)
response = conn.getresponse()
print(response.read().decode(), response.reason)
print(response.status, response.reason)

This link says it better than I could and helped in my decision making. I usually opt for an int as a primary key, unless I have a specific need not to and I also let SQL server auto-generate/maintain this field unless I have some specific reason not to. In reality, performance concerns need to be determined based on your specific app. There are many factors at play here including but not limited to expected db size, proper indexing, efficient querying, and more. Although people may disagree, I think in many scenarios you will not notice a difference with either option and you should choose what is more appropriate for your app and what allows you to develop easier, quicker, and more effectively (If you never complete the app what difference does the rest make :).

https://web.archive.org/web/20120812080710/http://databases.aspfaq.com/database/what-should-i-choose-for-my-primary-key.html

P.S. I'm not sure why you would use a Composite PK or what benefit you believe that would give you.

You most likely had the files staged.

git add src/file/to/ignore

To undo the staged files,

git reset HEAD

This will unstage the files allowing for the following git command to execute successfully.

git update-index --assume-unchanged src/file/to/ignore

The only way you can get it fancier is with MetaWhere.

MetaWhere has a newer cousin which is called Squeel which allows code like this:

GroupUser.where{user_id != me}

It goes without saying, that if this is the only refactor you are going to make, it is not worth using a gem and I would just stick with what you got. Squeel is useful in situations where you have many complex queries interacting with Ruby code.

building on an answer from another posting.. I've come up with a more generic way to build out a list, utilizing dynamic retrieval with Json.NET version 12.x

using Newtonsoft.Json;

static class JsonObj
{
    /// <summary>
    /// Deserializes a json file into an object list
    /// Author: Joseph Poirier 2/26/2019
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="fileName"></param>
    /// <returns></returns>
    public static List<T> DeSerializeObject<T>(string fileName)
    {
        List<T> objectOut = new List<T>();

        if (string.IsNullOrEmpty(fileName)) { return objectOut; }

        try
        {
            // reading in full file as text
            string ss = File.ReadAllText(fileName);

            // went with <dynamic> over <T> or <List<T>> to avoid error..
            //  unexpected character at line 1 column 2
            var output = JsonConvert.DeserializeObject<dynamic>(ss);

            foreach (var Record in output)
            {
                foreach (T data in Record)
                {
                    objectOut.Add(data);
                }
            }
        }
        catch (Exception ex)
        {
            //Log exception here
            Console.Write(ex.Message);
        }

        return objectOut;
    }
}

call to process

{
        string fname = "../../Names.json"; // <- your json file path

        // for alternate types replace string with custom class below
        List<string> jsonFile = JsonObj.DeSerializeObject<string>(fname);
}

or this call to process

{
        string fname = "../../Names.json"; // <- your json file path

        // for alternate types replace string with custom class below
        List<string> jsonFile = new List<string>();
        jsonFile.AddRange(JsonObj.DeSerializeObject<string>(fname));
}

Whevever you get a problem like this just go to the man page for the function in question and it will tell you what header you are missing, e.g.

$ man memset

MEMSET(3)                BSD Library Functions Manual                MEMSET(3)

NAME
     memset -- fill a byte string with a byte value

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <string.h>

     void *
     memset(void *b, int c, size_t len);

Note that for C++ it's generally preferable to use the proper equivalent C++ headers, <cstring>/<cstdio>/<cstdlib>/etc, rather than C's <string.h>/<stdio.h>/<stdlib.h>/etc.

To be able to use std::unordered_map (or one of the other unordered associative containers) with a user-defined key-type, you need to define two things:

1. A hash function; this must be a class that overrides operator() and calculates the hash value given an object of the key-type. One particularly straight-forward way of doing this is to specialize the std::hash template for your key-type.

2. A comparison function for equality; this is required because the hash cannot rely on the fact that the hash function will always provide a unique hash value for every distinct key (i.e., it needs to be able to deal with collisions), so it needs a way to compare two given keys for an exact match. You can implement this either as a class that overrides operator(), or as a specialization of std::equal, or – easiest of all – by overloading operator==() for your key type (as you did already).

The difficulty with the hash function is that if your key type consists of several members, you will usually have the hash function calculate hash values for the individual members, and then somehow combine them into one hash value for the entire object. For good performance (i.e., few collisions) you should think carefully about how to combine the individual hash values to ensure you avoid getting the same output for different objects too often.

A fairly good starting point for a hash function is one that uses bit shifting and bitwise XOR to combine the individual hash values. For example, assuming a key-type like this:

struct Key
{
  std::string first;
  std::string second;
  int         third;

  bool operator==(const Key &other) const
  { return (first == other.first
            && second == other.second
            && third == other.third);
  }
};

Here is a simple hash function (adapted from the one used in the cppreference example for user-defined hash functions):

namespace std {

  template <>
  struct hash<Key>
  {
    std::size_t operator()(const Key& k) const
    {
      using std::size_t;
      using std::hash;
      using std::string;

      // Compute individual hash values for first,
      // second and third and combine them using XOR
      // and bit shifting:

      return ((hash<string>()(k.first)
               ^ (hash<string>()(k.second) << 1)) >> 1)
               ^ (hash<int>()(k.third) << 1);
    }
  };

}

With this in place, you can instantiate a std::unordered_map for the key-type:

int main()
{
  std::unordered_map<Key,std::string> m6 = {
    { {"John", "Doe", 12}, "example"},
    { {"Mary", "Sue", 21}, "another"}
  };
}

It will automatically use std::hash<Key> as defined above for the hash value calculations, and the operator== defined as member function of Key for equality checks.

If you don't want to specialize template inside the std namespace (although it's perfectly legal in this case), you can define the hash function as a separate class and add it to the template argument list for the map:

struct KeyHasher
{
  std::size_t operator()(const Key& k) const
  {
    using std::size_t;
    using std::hash;
    using std::string;

    return ((hash<string>()(k.first)
             ^ (hash<string>()(k.second) << 1)) >> 1)
             ^ (hash<int>()(k.third) << 1);
  }
};

int main()
{
  std::unordered_map<Key,std::string,KeyHasher> m6 = {
    { {"John", "Doe", 12}, "example"},
    { {"Mary", "Sue", 21}, "another"}
  };
}

How to define a better hash function? As said above, defining a good hash function is important to avoid collisions and get good performance. For a real good one you need to take into account the distribution of possible values of all fields and define a hash function that projects that distribution to a space of possible results as wide and evenly distributed as possible.

This can be difficult; the XOR/bit-shifting method above is probably not a bad start. For a slightly better start, you may use the hash_value and hash_combine function template from the Boost library. The former acts in a similar way as std::hash for standard types (recently also including tuples and other useful standard types); the latter helps you combine individual hash values into one. Here is a rewrite of the hash function that uses the Boost helper functions:

#include <boost/functional/hash.hpp>

struct KeyHasher
{
  std::size_t operator()(const Key& k) const
  {
      using boost::hash_value;
      using boost::hash_combine;

      // Start with a hash value of 0    .
      std::size_t seed = 0;

      // Modify 'seed' by XORing and bit-shifting in
      // one member of 'Key' after the other:
      hash_combine(seed,hash_value(k.first));
      hash_combine(seed,hash_value(k.second));
      hash_combine(seed,hash_value(k.third));

      // Return the result.
      return seed;
  }
};

And here’s a rewrite that doesn’t use boost, yet uses good method of combining the hashes:

namespace std
{
    template <>
    struct hash<Key>
    {
        size_t operator()( const Key& k ) const
        {
            // Compute individual hash values for first, second and third
            // http://stackoverflow.com/a/1646913/126995
            size_t res = 17;
            res = res * 31 + hash<string>()( k.first );
            res = res * 31 + hash<string>()( k.second );
            res = res * 31 + hash<int>()( k.third );
            return res;
        }
    };
}

My take on this for future people watching this:

This could also happen if you're using: <? instead of <?php.

The below command worked for me :

conda install -c anaconda numpy

In addition to what is listed above, I had to enable both TCP and UDP ports for SQLExpress to connect remotely. Because I have three different instances on my development machine, I enable 1430-1435 for both TCP and UDP.

Mouse.Click();

Microsoft.VisualStudio.TestTools.UITesting

decodeURIComponent will decode URI special markers such as &, ?, #, etc, decodeURI will not.

using the top answer produces a warning about making changes to a copy of a df slice. Assuming that you have other columns, a better way to do this is to pass a dictionary:
df.fillna({'A': 'NA', 'B': 'NA'}, inplace=True)

Whenever you encounter an error with this message use my_string.encode().

^{(where my_string is the string you're passing to a function/method).}

The encode method of str objects returns the encoded version of the string as a bytes object which you can then use. In this specific instance, socket methods such as .send expect a bytes object as the data to be sent, not a string object.

Since you have an object of type str and you're passing it to a function/method that expects an object of type bytes, an error is raised that clearly explains that:

TypeError: a bytes-like object is required, not 'str'

So the encode method of strings is needed, applied on a str value and returning a bytes value:

>>> s = "Hello world"
>>> print(type(s))
<class 'str'>
>>> byte_s = s.encode()
>>> print(type(byte_s))
<class 'bytes'>
>>> print(byte_s)
b"Hello world"

Here the prefix b in b'Hello world' denotes that this is indeed a bytes object. You can then pass it to whatever function is expecting it in order for it to run smoothly.

You could use an immutable struct

public struct Data
{
    public Data(int intValue, string strValue)
    {
        IntegerData = intValue;
        StringData = strValue;
    }

    public int IntegerData { get; private set; }
    public string StringData { get; private set; }
}

var list = new List<Data>();

Or a KeyValuePair<int, string>

using Data = System.Collections.Generic.KeyValuePair<int, string>
...
var list = new List<Data>();
list.Add(new Data(12345, "56789"));

Here is a method that is supported by nearly all browsers:

if (sessionStorage.getItem('reloaded') != null) {
    console.log('page was reloaded');
} else {
    console.log('page was not reloaded');
}

sessionStorage.setItem('reloaded', 'yes'); // could be anything

It uses SessionStorage to check if the page is opened the first time or if it is refreshed.

I use and like Rapid PHP.

You can use my highlight script from https://github.com/kepkin/dev-shell-essentials

It's better than grep cause you can highlight each match with it's own color.

$ command_here | highlight green "input" | highlight red "output"

If you want to list/ array of integers easiest way to do this is accept the comma(,) separated list of string and convert it to list of integers.Do not forgot to mention [FromUri] attriubte.your url look like:

...?ID=71&accountID=1,2,3,289,56

public HttpResponseMessage test([FromUri]int ID, [FromUri]string accountID)
{
    List<int> accountIdList = new List<int>();
    string[] arrAccountId = accountId.Split(new char[] { ',' });
    for (var i = 0; i < arrAccountId.Length; i++)
    {
        try
        {
           accountIdList.Add(Int32.Parse(arrAccountId[i]));
        }
        catch (Exception)
        {
        }
    }
}

I suppose repr function can help you:

s = 't\n'
repr(s)
"'t\\n'"
repr(s)[1:-1]
't\\n'

Try:

insert into account_type_standard (account_type_Standard_id, tax_status_id, recipient_id)
select account_type_standard_seq.nextval,
       ts.tax_status_id, 
       ( select r.recipient_id
         from recipient r
         where r.recipient_code = ?
       )
from tax_status ts
where ts.tax_status_code = ?

My project is .NET ASP Core 2 MVC Angular 4 template with Bootstrap 4. Adding "sticky-top" into main app component html (i.e. app.component.html) on the first row worked, as follows:

<div class='row sticky-top'>_x000D_
    <div class='col-sm-12'>_x000D_
        <nav-menu-top></nav-menu-top>_x000D_
    </div>_x000D_
</div>_x000D_
<div class="row">_x000D_
    <div class='col-sm-3'>_x000D_
        <nav-menu></nav-menu>_x000D_
    </div>_x000D_
    <div class='col-sm-9 body-content'>_x000D_
        <router-outlet></router-outlet>_x000D_
    </div>_x000D_
</div>

Is that the convention or did I oversimplify this?

public class ConcreteClassModel : BaseModel
{
... rest of class

public bool InersectsWith(ConcreteClassModel crm)
    {
        return !(this.StartDateDT > crm.EndDateDT || this.EndDateDT < crm.StartDateDT);
    }
}

[TestClass]
public class ConcreteClassTest
{
    [TestMethod]
    public void TestConcreteClass_IntersectsWith()
    {
        var sutPeriod = new ConcreteClassModel() { StartDateDT = new DateTime(2016, 02, 01), EndDateDT = new DateTime(2016, 02, 29) };

        var periodBeforeSutPeriod = new ConcreteClassModel() { StartDateDT = new DateTime(2016, 01, 01), EndDateDT = new DateTime(2016, 01, 31) };
        var periodWithEndInsideSutPeriod = new ConcreteClassModel() { StartDateDT = new DateTime(2016, 01, 10), EndDateDT = new DateTime(2016, 02, 10) };
        var periodSameAsSutPeriod = new ConcreteClassModel() { StartDateDT = new DateTime(2016, 02, 01), EndDateDT = new DateTime(2016, 02, 29) };

        var periodWithEndDaySameAsStartDaySutPeriod = new ConcreteClassModel() { StartDateDT = new DateTime(2016, 01, 01), EndDateDT = new DateTime(2016, 02, 01) };
        var periodWithStartDaySameAsEndDaySutPeriod = new ConcreteClassModel() { StartDateDT = new DateTime(2016, 02, 29), EndDateDT = new DateTime(2016, 03, 31) };
        var periodEnclosingSutPeriod = new ConcreteClassModel() { StartDateDT = new DateTime(2016, 01, 01), EndDateDT = new DateTime(2016, 03, 31) };

        var periodWithinSutPeriod = new ConcreteClassModel() { StartDateDT = new DateTime(2016, 02, 010), EndDateDT = new DateTime(2016, 02, 20) };
        var periodWithStartInsideSutPeriod = new ConcreteClassModel() { StartDateDT = new DateTime(2016, 02, 10), EndDateDT = new DateTime(2016, 03, 10) };
        var periodAfterSutPeriod = new ConcreteClassModel() { StartDateDT = new DateTime(2016, 03, 01), EndDateDT = new DateTime(2016, 03, 31) };

        Assert.IsFalse(sutPeriod.InersectsWith(periodBeforeSutPeriod), "sutPeriod.InersectsWith(periodBeforeSutPeriod) should be false");
        Assert.IsTrue(sutPeriod.InersectsWith(periodWithEndInsideSutPeriod), "sutPeriod.InersectsWith(periodEndInsideSutPeriod)should be true");
        Assert.IsTrue(sutPeriod.InersectsWith(periodSameAsSutPeriod), "sutPeriod.InersectsWith(periodSameAsSutPeriod) should be true");

        Assert.IsTrue(sutPeriod.InersectsWith(periodWithEndDaySameAsStartDaySutPeriod), "sutPeriod.InersectsWith(periodWithEndDaySameAsStartDaySutPeriod) should be true");
        Assert.IsTrue(sutPeriod.InersectsWith(periodWithStartDaySameAsEndDaySutPeriod), "sutPeriod.InersectsWith(periodWithStartDaySameAsEndDaySutPeriod) should be true");
        Assert.IsTrue(sutPeriod.InersectsWith(periodEnclosingSutPeriod), "sutPeriod.InersectsWith(periodEnclosingSutPeriod) should be true");

        Assert.IsTrue(sutPeriod.InersectsWith(periodWithinSutPeriod), "sutPeriod.InersectsWith(periodWithinSutPeriod) should be true");
        Assert.IsTrue(sutPeriod.InersectsWith(periodWithStartInsideSutPeriod), "sutPeriod.InersectsWith(periodStartInsideSutPeriod) should be true");
        Assert.IsFalse(sutPeriod.InersectsWith(periodAfterSutPeriod), "sutPeriod.InersectsWith(periodAfterSutPeriod) should be false");
    }
}

Thanks for the above answers which help me code the above for an MVC project.

Note StartDateDT and EndDateDT are dateTime types

OS Debian 10 + nginx. In my case, i unlinked the "default" page as:

1. cd/etc/nginx/sites-enabled
2. unlink default
3. service nginx restart

Thanks , but i found an alternative solution using ffmpeg:

def save():
    os.system("ffmpeg -r 1 -i img%01d.png -vcodec mpeg4 -y movie.mp4")

But thank you for your help :)

you can use process class it's very easy. use this namespace

using System.Diagnostics;

if you want to make a button to get active window.

private void button1_Click(object sender, EventArgs e)
    {            
       Process currentp = Process.GetCurrentProcess();
       TextBox1.Text = currentp.MainWindowTitle;  //this textbox will be filled with active window.
    }

Looking at your example, I think this is what you want:

var dict = TableObj.ToDictionary(t => t.Key, t=> t.TimeStamp);

Both projects aim to make it easier to deploy & manage applications inside containers in your datacenter or cloud.

In order to deploy applications on top of Mesos, one can use Marathon or Kubernetes for Mesos.

Marathon is a cluster-wide init and control system for running Linux services in cgroups and Docker containers. Marathon has a number of different canary deploy features and is a very mature project.

Marathon runs on top of Mesos, which is a highly scalable, battle tested and flexible resource manager. Marathon is proven to scale and runs in many production environments.

The Mesos and Mesosphere technology stack provides a cloud-like environment for running existing Linux workloads, but it also provides a native environment for building new distributed systems.

Mesos is a distributed systems kernel, with a full API for programming directly against the datacenter. It abstracts underlying hardware (e.g. bare metal or VMs) away and just exposes the resources. It contains primitives for writing distributed applications (e.g. Spark was originally a Mesos App, Chronos, etc.) such as Message Passing, Task Execution, etc. Thus, entirely new applications are made possible. Apache Spark is one example for a new (in Mesos jargon called) framework that was built originally for Mesos. This enabled really fast development - the developers of Spark didn't have to worry about networking to distribute tasks amongst nodes as this is a core primitive in Mesos.

To my knowledge, Kubernetes is not used inside Google in production deployments today. For production, Google uses Omega/Borg, which is much more similar to the Mesos/Marathon model. However the great thing about using Mesos as the foundation is that both Kubernetes and Marathon can run on top of it.

More resources about Marathon:

https://mesosphere.github.io/marathon/

Video: https://www.youtube.com/watch?v=hZNGST2vIds

on my windows machine 8 machine running IIS 8 I can run the batch file just by putting the bats name and forgettig the path to it. Or by putting the bat in c:\windows\system32 don't ask me how it works but it does. LOL

$test=shell_exec("C:\windows\system32\cmd.exe /c $streamnumX.bat");

You can't solve it. Simply answer1.sum()==0, and you can't perform a division by zero.

This happens because answer1 is the exponential of 2 very large, negative numbers, so that the result is rounded to zero.

nan is returned in this case because of the division by zero.

Now to solve your problem you could:

• go for a library for high-precision mathematics, like mpmath. But that's less fun.
• as an alternative to a bigger weapon, do some math manipulation, as detailed below.
• go for a tailored scipy/numpy function that does exactly what you want! Check out @Warren Weckesser answer.

Here I explain how to do some math manipulation that helps on this problem. We have that for the numerator:

exp(-x)+exp(-y) = exp(log(exp(-x)+exp(-y)))
                = exp(log(exp(-x)*[1+exp(-y+x)]))
                = exp(log(exp(-x) + log(1+exp(-y+x)))
                = exp(-x + log(1+exp(-y+x)))

where above x=3* 1089 and y=3* 1093. Now, the argument of this exponential is

-x + log(1+exp(-y+x)) = -x + 6.1441934777474324e-06

For the denominator you could proceed similarly but obtain that log(1+exp(-z+k)) is already rounded to 0, so that the argument of the exponential function at the denominator is simply rounded to -z=-3000. You then have that your result is

exp(-x + log(1+exp(-y+x)))/exp(-z) = exp(-x+z+log(1+exp(-y+x)) 
                                   = exp(-266.99999385580668)

which is already extremely close to the result that you would get if you were to keep only the 2 leading terms (i.e. the first number 1089 in the numerator and the first number 1000 at the denominator):

exp(3*(1089-1000))=exp(-267)

For the sake of it, let's see how close we are from the solution of Wolfram alpha (link):

Log[(exp[-3*1089]+exp[-3*1093])/([exp[-3*1000]+exp[-3*4443])] -> -266.999993855806522267194565420933791813296828742310997510523

The difference between this number and the exponent above is +1.7053025658242404e-13, so the approximation we made at the denominator was fine.

The final result is

'exp(-266.99999385580668) = 1.1050349147204485e-116

From wolfram alpha is (link)

1.105034914720621496.. × 10^-116 # Wolfram alpha.

and again, it is safe to use numpy here too.

With Eloquent its very easy to retrieve relational data. Checkout the following example with your scenario in Laravel 5.

We have three models:

1) Article (belongs to user and category)

2) Category (has many articles)

3) User (has many articles)

1) Article.php

<?php

namespace App\Models;
 use Eloquent;

class Article extends Eloquent{

    protected $table = 'articles';

    public function user()
    {
        return $this->belongsTo('App\Models\User');
    }

    public function category()
    {
        return $this->belongsTo('App\Models\Category');
    }

}

2) Category.php

<?php

namespace App\Models;

use Eloquent;

class Category extends Eloquent
{
    protected $table = "categories";

    public function articles()
    {
        return $this->hasMany('App\Models\Article');
    }

}

3) User.php

<?php

namespace App\Models;
use Eloquent;

class User extends Eloquent
{
    protected $table = 'users';

    public function articles()
    {
        return $this->hasMany('App\Models\Article');
    }

}

You need to understand your database relation and setup in models. User has many articles. Category has many articles. Articles belong to user and category. Once you setup the relationships in Laravel, it becomes easy to retrieve the related information.

For example, if you want to retrieve an article by using the user and category, you would need to write:

$article = \App\Models\Article::with(['user','category'])->first();

and you can use this like so:

//retrieve user name 
$article->user->user_name  

//retrieve category name 
$article->category->category_name

In another case, you might need to retrieve all the articles within a category, or retrieve all of a specific user`s articles. You can write it like this:

$categories = \App\Models\Category::with('articles')->get();

$users = \App\Models\Category::with('users')->get();

You can learn more at http://laravel.com/docs/5.0/eloquent

Simplest solution would be to use tool which allows you to directly specify ranges, like gnu shuf

shuf -i1-10 -n1

If you want to use $RANDOM, it would be more precise to throw out the last 8 numbers in 0...32767, and just treat it as 0...32759, since taking 0...32767 mod 10 you get the following distribution

0-8 each: 3277 
8-9 each: 3276

So, slightly slower but more precise would be

while :; do ran=$RANDOM; ((ran < 32760)) && echo $(((ran%10)+1)) && break; done 

Add an object to an array

class App extends React.Component {
  state = {
  value: ""
  };

items = [
  {
    id: 0,
    title: "first item"
  },
  {
    id: 1,
    title: "second item"
  },
  {
    id: 2,
    title: "third item"
  }
];

handleChange = e => {
  this.setState({
    value: e.target.value
  });
};

handleAddItem = () => {
  if (this.state.value === "") return;
  const item = new Object();
  item.id = this.items.length;
  item.title = this.state.value;
  this.items.push(item);
  this.setState({
    value: ""
  });

  console.log(this.items);
};

render() {
  const items = this.items.map(item => <p>{item.title}</p>);
  return (
    <>
      <label>
        <input
          value={this.state.value}
          type="text"
          onChange={this.handleChange}
        />
        <button onClick={this.handleAddItem}>Add item</button>
      </label>
      <h1>{items}</h1>
    </>
  );
}
}

ReactDOM.render(<App />, document.getElementById("root"));

I've created library to traverse and edit deep nested JS objects. Check out API here: https://github.com/dominik791

You can also play with the library interactively using demo app: https://dominik791.github.io/obj-traverse-demo/

Examples of usage: You should always have root object which is the first parameter of each method:

var rootObj = {
  name: 'rootObject',
  children: [
    {
      'name': 'child1',
       children: [ ... ]
    },
    {
       'name': 'child2',
       children: [ ... ]
    }
  ]
};

The second parameter is always the name of property that holds nested objects. In above case it would be 'children'.

The third parameter is an object that you use to find object/objects that you want to find/modify/delete. For example if you're looking for object with id equal to 1, then you will pass { id: 1} as the third parameter.

And you can:

1. findFirst(rootObj, 'children', { id: 1 }) to find first object with id === 1
2. findAll(rootObj, 'children', { id: 1 }) to find all objects with id === 1
3. findAndDeleteFirst(rootObj, 'children', { id: 1 }) to delete first matching object
4. findAndDeleteAll(rootObj, 'children', { id: 1 }) to delete all matching objects

replacementObj is used as the last parameter in two last methods:

1. findAndModifyFirst(rootObj, 'children', { id: 1 }, { id: 2, name: 'newObj'}) to change first found object with id === 1 to the { id: 2, name: 'newObj'}
2. findAndModifyAll(rootObj, 'children', { id: 1 }, { id: 2, name: 'newObj'}) to change all objects with id === 1 to the { id: 2, name: 'newObj'}

I think we can do this with one line simple command

for i in `grep -rl eth0 . 2> /dev/null`; do sed -i ‘s/eth0/eth1/’ $i; done

Refer to this page.

You really should have multiple input, e.g. one for firstname, middle names, lastname and another one for age. If you want to have some fun though you could try:

>>> input_given="join smith 25"
>>> chars="".join([i for i in input_given if not i.isdigit()])
>>> age=input_given.translate(None,chars)
>>> age
'25'
>>> name=input_given.replace(age,"").strip()
>>> name
'join smith'

This would of course fail if there is multiple numbers in the input. a quick check would be:

assert(age in input_given)

and also:

assert(len(name)<len(input_given))

There is another hack I use and never saw in any StackOverflow response : using "src" attribute of an image will yield the complete base path of your site. For instance :

var dummy = new Image;
dummy.src = '$';                  // using '' will fail on some browsers
var root = dummy.src.slice(0,-1); // remove trailing '$'

On an URL like http://domain.com/somesite/index.html, root will be set to http://domain.com/somesite/. This also works for localhost or any valid base URL.

Note that this will cause a failed HTTP request on the $ dummy image. You can use an existing image instead to avoid this, with only slight code changes.

Another variant uses a dummy link, with no side effect on HTTP requests :

var dummy = document.createElement ('a');
dummy.href = '';
var root = dummy.href;

I did not test it on every browser, though.

The only solution that worked for me was this command :

docker-compose build --no-cache

This will automatically pull fresh image from repo and won't use the cache version that is prebuild with any parameters you've been using before.

I deleted some unused imports and it fixed the problem for me. You can't not find a Class if you never look for it in the first place.

Use:

git remote add upstream ORIGINAL_REPOSITORY_URL

This will set your upstream to the repository you forked from. Then do this:

git fetch upstream      

This will fetch all the branches including master from the original repository.

Merge this data in your local master branch:

git merge upstream/master

Push the changes to your forked repository i.e. to origin:

git push origin master

Voila! You are done with the syncing the original repository.

Here is one case that worked for me if we need to convert .cer to .crt, though both of them are contextually same

openssl pkcs12 -in identity.p12 -nokeys -out mycertificate.crt

where we should have a valid private key (identity.p12) PKCS 12 format, this one i generated from keystore (.jks file) provided by CA (Certification Authority) who created my certificate.

I had the same error message but the solution is different.

The compiler parses the file from top to bottom.

Make sure a struct is defined BEFORE using it into another:

typedef struct
{
    char name[50];
    wheel_t wheels[4]; //wrong, wheel_t is not defined yet
} car_t;

typedef struct
{
    int weight;
} wheel_t;

It was a firewall issue. There was a hardware firewall that was blocking access to almost all ports. (Turning off software firewall / SELinux bla bla had no effect)

Then I scanned the open ports and used the port that was open.

If you are facing the same problem, Run the following command

sudo nmap -T Aggressive -A -v 127.0.0.1 -p 1-65000

It will scan for all the open ports on your system. Any port that is open can be accessed from outside.

Ref.: http://www.go2linux.org/which_service_or_program_is_listening_on_port

As of jQuery 1.6 you should now call prop:

$target.prop("tagName")

See http://api.jquery.com/prop/

I have run the following below and it passes all the test cases...

It makes use of the different way in which parseFloat and Number handle their inputs...

function IsNumeric(_in) {
    return (parseFloat(_in) === Number(_in) && Number(_in) !== NaN);
}

Adding onto @JoelEtherton's solution to fix a newly found security vulnerability. This vulnerability happens if users request HTTP and are redirected to HTTPS, but the sessionid cookie is set as secure on the first request to HTTP. That is now a security vulnerability, according to McAfee Secure.

This code will only secure cookies if request is using HTTPS. It will expire the sessionid cookie, if not HTTPS.

    // this code will mark the forms authentication cookie and the
    // session cookie as Secure.
    if (Request.IsSecureConnection)
    {
        if (Response.Cookies.Count > 0)
        {
            foreach (string s in Response.Cookies.AllKeys)
            {
                if (s == FormsAuthentication.FormsCookieName || s.ToLower() == "asp.net_sessionid")
                {
                    Response.Cookies[s].Secure = true;
                }
            }
        }
    }
    else
    {
        //if not secure, then don't set session cookie
        Response.Cookies["asp.net_sessionid"].Value = string.Empty;
        Response.Cookies["asp.net_sessionid"].Expires = new DateTime(2018, 01, 01);
    }

In my case the problem was about permissions. I use Ubuntu 19.04 When running Android Studio in root user it would prompt my phone about permission requirements. But with normal user it won't do this.

So the problem was about adb not having enough permission. I made my user owner of Android folder on home directory.

sudo chown -R orkhan ~/Android

You can use SwiftGif from this link

Usage:

imageView.loadGif(name: "jeremy")

One different and easy approach: iterating rows

Using iterows

 df1 = pd.DataFrame() # Creating an empty dataframe
 for index,i in df.iterrows():
    df1.loc[index, 'A'] = df.loc[index, 'A']
    df1.loc[index, 'B'] = df.loc[index, 'B']
    df1.head()

If running on Windows try running R or R Studio as administrator to avoid Windows OS file system constraints.

Use services.msc or (Start > Control Panel > Administrative Tools > Services) to find the service in question. Double-click to see the service name and the path to the executable.

Check the exe version information for a clue as to the owner of the service, and use Add/Remove programs to do a clean uninstall if possible.

Failing that, from the command prompt:

sc stop servicexyz
sc delete servicexyz

No restart should be required.

Using @vivek's hint I develop an utils class based on Swift 3, hope you appreciate!

import Foundation
import UIKit

public enum PreferenceType: String {

    case about = "General&path=About"
    case accessibility = "General&path=ACCESSIBILITY"
    case airplaneMode = "AIRPLANE_MODE"
    case autolock = "General&path=AUTOLOCK"
    case cellularUsage = "General&path=USAGE/CELLULAR_USAGE"
    case brightness = "Brightness"
    case bluetooth = "Bluetooth"
    case dateAndTime = "General&path=DATE_AND_TIME"
    case facetime = "FACETIME"
    case general = "General"
    case keyboard = "General&path=Keyboard"
    case castle = "CASTLE"
    case storageAndBackup = "CASTLE&path=STORAGE_AND_BACKUP"
    case international = "General&path=INTERNATIONAL"
    case locationServices = "LOCATION_SERVICES"
    case accountSettings = "ACCOUNT_SETTINGS"
    case music = "MUSIC"
    case equalizer = "MUSIC&path=EQ"
    case volumeLimit = "MUSIC&path=VolumeLimit"
    case network = "General&path=Network"
    case nikePlusIPod = "NIKE_PLUS_IPOD"
    case notes = "NOTES"
    case notificationsId = "NOTIFICATIONS_ID"
    case phone = "Phone"
    case photos = "Photos"
    case managedConfigurationList = "General&path=ManagedConfigurationList"
    case reset = "General&path=Reset"
    case ringtone = "Sounds&path=Ringtone"
    case safari = "Safari"
    case assistant = "General&path=Assistant"
    case sounds = "Sounds"
    case softwareUpdateLink = "General&path=SOFTWARE_UPDATE_LINK"
    case store = "STORE"
    case twitter = "TWITTER"
    case facebook = "FACEBOOK"
    case usage = "General&path=USAGE"
    case video = "VIDEO"
    case vpn = "General&path=Network/VPN"
    case wallpaper = "Wallpaper"
    case wifi = "WIFI"
    case tethering = "INTERNET_TETHERING"
    case blocked = "Phone&path=Blocked"
    case doNotDisturb = "DO_NOT_DISTURB"

}

enum PreferenceExplorerError: Error {
    case notFound(String)
}

open class PreferencesExplorer {

    // MARK: - Class properties -

    static private let preferencePath = "App-Prefs:root"

    // MARK: - Class methods -

    static func open(_ preferenceType: PreferenceType) throws {
        let appPath = "\(PreferencesExplorer.preferencePath)=\(preferenceType.rawValue)"
        if let url = URL(string: appPath) {
            if #available(iOS 10.0, *) {
                UIApplication.shared.open(url, options: [:], completionHandler: nil)
            } else {
               UIApplication.shared.openURL(url)
            }
        } else {
            throw PreferenceExplorerError.notFound(appPath)
        }
    }

}

This is very helpful since that API's will change for sure and you can refactor once and very fast!

Ensure 'idm.url' is set in property file and the property file is loaded

If you're using CakePHP 1.3, you can put this in your views to output the SQL:

<?php echo $this->element('sql_dump'); ?>

So you could create a view called 'sql', containing only the line above, and then call this in your controller whenever you want to see it:

$this->render('sql');

(Also remember to set your debug level to at least 2 in app/config/core.php)

Source

If you are using IPython, then you need to type "foo??"

In [19]: foo??
Signature: foo(arg1, arg2)
Source:
def foo(arg1,arg2):
    #do something with args
    a = arg1 + arg2
    return a

File:      ~/Desktop/<ipython-input-18-3174e3126506>
Type:      function

I just used getLocaleString() function for my application. It should adapt the timeformat common to the locale, so no +0200 etc. Ofcourse, there will be less possibility for controlling the width of your string then.

var str = (new Date(1400167800)).toLocaleString();

I face Similar problem now I understand we have some more option : varStatus="loop", Here will be loop will variable which will hold the index of lop.

It can use for use to read for Zeor base index or 1 one base index.

${loop.count}` it will give 1 starting base index.

${loop.index} it will give 0 base index as normal Index of array start from 0.

For Example :

<c:forEach var="currentImage" items="${cityBannerImages}" varStatus="loop">
<picture>
   <source srcset="${currentImage}" media="(min-width: 1000px)"></source>
   <source srcset="${cityMobileImages[loop.count]}" media="(min-width:600px)"></source>
   <img srcset="${cityMobileImages[loop.count]}" alt=""></img>
</picture>
</c:forEach>

For more Info please refer this link

Another option is CSVLogger: https://keras.io/callbacks/#csvlogger. It creates a csv file appending the result of each epoch. Even if you interrupt training, you get to see how it evolved.

Macros in Notepad++ are just a bunch of encoded operations: you start recording, operate on the buffer, perhaps activating menus, stop recording then play the macro.
After investigation, I found out they are saved in the file shortcuts.xml in the Macros section. For example, I have there:

<Macro name="Trim Trailing and save" Ctrl="no" Alt="yes" Shift="yes" Key="83">
    <Action type="1" message="2170" wParam="0" lParam="0" sParam=" " />
    <Action type="1" message="2170" wParam="0" lParam="0" sParam=" " />
    <Action type="1" message="2170" wParam="0" lParam="0" sParam=" " />
    <Action type="0" message="2327" wParam="0" lParam="0" sParam="" />
    <Action type="0" message="2327" wParam="0" lParam="0" sParam="" />
    <Action type="2" message="0" wParam="42024" lParam="0" sParam="" />
    <Action type="2" message="0" wParam="41006" lParam="0" sParam="" />
</Macro>

I haven't looked at the source, but from the look, I would say we have messages sent to Scintilla (the editing component, perhaps type 0 and 1), and to Notepad++ itself (probably activating menu items).
I don't think it will record actions in dialogs (like search/replace).

Looking at Scintilla.iface file, we can see that 2170 is the code of ReplaceSel (ie. insert string is nothing is selected), 2327 is Tab command, and Resource Hacker (just have it handy...) shows that 42024 is "Trim Trailing Space" menu item and 41006 is "Save".
I guess action type 0 is for Scintilla commands with numerical params, type 1 is for commands with string parameter, 2 is for Notepad++ commands.

Problem: Scintilla doesn't have a "Replace all" command: it is the task of the client to do the iteration, with or without confirmation, etc.
Another problem: it seems type 1 action is limited to 1 char (I edited manually, when exiting N++ it was truncated).
I tried some tricks, but I fear such task is beyond the macro capabilities.

Maybe that's where SciTE with its Lua scripting ability (or Programmer's Notepad which seems to be scriptable with Python) has an edge... :-)

[EDIT] Looks like I got the above macro from this thread or a similar place... :-) I guess the first lines are unnecessary (side effect or recording) but they were good examples of macro code anyway.

Looking for a super simple solution:

SUBSTRING([Phone], CHARINDEX('(', [Phone], 1)+1, 3)
       + SUBSTRING([Phone], CHARINDEX(')', [Phone], 1)+1, 3)
       + SUBSTRING([Phone], CHARINDEX('-', [Phone], 1)+1, 4) AS Phone

You want an outer join for this (and you need to use person as the "driving" table)

SELECT person.person_id, COUNT(appointment.person_id) AS "number_of_appointments"
FROM person 
  LEFT JOIN appointment ON person.person_id = appointment.person_id
GROUP BY person.person_id;

The reason why this is working, is that the outer (left) join will return NULL for those persons that do not have an appointment. The aggregate function count() will not count NULL values and thus you'll get a zero.

If you want to learn more about outer joins, here is a nice tutorial: http://sqlzoo.net/wiki/Using_Null

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.

If you are really about to work on multi-gigabyte text files then do not use PowerShell. Even if you find a way to read it faster processing of huge amount of lines will be slow in PowerShell anyway and you cannot avoid this. Even simple loops are expensive, say for 10 million iterations (quite real in your case) we have:

# "empty" loop: takes 10 seconds
measure-command { for($i=0; $i -lt 10000000; ++$i) {} }

# "simple" job, just output: takes 20 seconds
measure-command { for($i=0; $i -lt 10000000; ++$i) { $i } }

# "more real job": 107 seconds
measure-command { for($i=0; $i -lt 10000000; ++$i) { $i.ToString() -match '1' } }

UPDATE: If you are still not scared then try to use the .NET reader:

$reader = [System.IO.File]::OpenText("my.log")
try {
    for() {
        $line = $reader.ReadLine()
        if ($line -eq $null) { break }
        # process the line
        $line
    }
}
finally {
    $reader.Close()
}

UPDATE 2

There are comments about possibly better / shorter code. There is nothing wrong with the original code with for and it is not pseudo-code. But the shorter (shortest?) variant of the reading loop is

$reader = [System.IO.File]::OpenText("my.log")
while($null -ne ($line = $reader.ReadLine())) {
    $line
}

compiler gives error because when assigning mValue=0 compiler find assignment operator=(int ) for compile time binding but it's not present in the string class. if we type cast following statement to char like mValue=(char)0 then its compile successfully because string class contain operator=(char) method.

please note, if you use $filter like this:

$scope.failedSubjects = $filter('filter')($scope.results.subjects, {'grade':'C'});

and you happened to have another grade for, Oh I don't know, CC or AC or C+ or CCC it pulls them in to. you need to append a requirement for an exact match:

$scope.failedSubjects = $filter('filter')($scope.results.subjects, {'grade':'C'}, true);

This really killed me when I was pulling in some commission details like this:

var obj = this.$filter('filter')(this.CommissionTypes, { commission_type_id: 6}))[0];

only get called in for a bug because it was pulling in the commission ID 56 rather than 6.

Adding the true forces an exact match.

var obj = this.$filter('filter')(this.CommissionTypes, { commission_type_id: 6}, true))[0];

Yet still, I prefer this (I use typescript, hence the "Let" and =>):

let obj = this.$filter('filter')(this.CommissionTypes, (item) =>{ 
             return item.commission_type_id === 6;
           })[0];

I do that because, at some point down the road, I might want to get some more info from that filtered data, etc... having the function right in there kind of leaves the hood open.

Here is a simple function which does exactly this :

#include <windows.h>
#include <string>

bool dirExists(const std::string& dirName_in)
{
  DWORD ftyp = GetFileAttributesA(dirName_in.c_str());
  if (ftyp == INVALID_FILE_ATTRIBUTES)
    return false;  //something is wrong with your path!

  if (ftyp & FILE_ATTRIBUTE_DIRECTORY)
    return true;   // this is a directory!

  return false;    // this is not a directory!
}

I know this is solved and the question was asked long time ago, but as I'm dealing with a similar problem, I would like to give a totally different approach to this:

For arrays it says "An array is an ordered collection of values." at http://www.json.org/ - but objects ("An object is an unordered set of name/value pairs.") aren't ordered.

I wonder why that object is in an array - that implies an order that's not there.

{
"items":
[
    {
        "WR":"qwe",
        "QU":"asd",
        "QA":"end",
        "WO":"hasd",
        "NO":"qwer"
    },
]
}

So a solution would be to put the keys in a "real" array and add the data as objects to each key like this:

{
"items":
[
    {"WR": {"data": "qwe"}},
    {"QU": {"data": "asd"}},
    {"QA": {"data": "end"}},
    {"WO": {"data": "hasd"}},
    {"NO": {"data": "qwer"}}
]
}

So this is an approach that tries to rethink the original modelling and its intent. But I haven't tested (and I wonder) if all involved tools would preserve the order of that original JSON array.

This other approach works well for me:

$("#myModal").on("show.bs.modal", function(e) {
    var link = $(e.relatedTarget);
    $(this).find(".modal-body").load(link.attr("href"));
});

$('#datetimepicker').datetimepicker({ 
    minView: 2, 
    pickTime: false, 
    language: 'pt-BR' 
});

Please try if it works for you as well

You can do this in IE:

<script language="VBScript">
Sub myAlert(title, content)
      MsgBox content, 0, title
End Sub
</script>

<script type="text/javascript">
myAlert("My custom title", "Some content");
</script>

(Although, I really wish you couldn't.)

If you're missing core dumps for binaries on RHEL and when using abrt, make sure that /etc/abrt/abrt-action-save-package-data.conf

contains

ProcessUnpackaged = yes

This enables the creation of crash reports (including core dumps) for binaries which are not part of installed packages (e.g. locally built).

thisTag = _tags.FirstOrDefault(t => t.Key == tag);

is an inefficient and a little bit strange way to find something by key in a dictionary. Looking things up for a Key is the basic function of a Dictionary.

The basic solution would be:

if (_tags.Containskey(tag)) { string myValue = _tags[tag]; ... }

But that requires 2 lookups.

TryGetValue(key, out value) is more concise and efficient, it only does 1 lookup. And that answers the last part of your question, the best way to do a lookup is:

string myValue;
if (_tags.TryGetValue(tag, out myValue)) { /* use myValue */ }

VS 2017 update, for C# 7 and beyond we can declare the result variable inline:

if (_tags.TryGetValue(tag, out string myValue))
{
    // use myValue;
}
// use myValue, still in scope, null if not found

You could add \singlespacing near the beginning of your table. See the setspace instructions for more options.

You will have to assign both left and right property 0 value for margin: auto to center the logo.

So in this case:

#logo {
  background:red;
  height:50px;
  position:absolute;
  width:50px;
  left: 0;
  right: 0;
  margin: 0 auto;
}

You might also want to set position: relative for #header.

This works because, setting left and right to zero will horizontally stretch the absolutely positioned element. Now magic happens when margin is set to auto. margin takes up all the extra space(equally on each side) leaving the content to its specified width. This results in content becoming center aligned.

The outfile should be in binary mode.

outFile = open('output.xml', 'wb')

I'm using react-native CLI and I just restart rn-cli, ctrl+c to stop the process then npx react-native start

u can do it simply like this

   public ActionResult Delete(int? id)
    {
        using (var db = new RegistrationEntities())
        {
            Models.RegisterTable Obj = new Models.RegisterTable();
            Registration.DAL.RegisterDbTable personalDetail = db.RegisterDbTable.Find(id);
            if (personalDetail == null)
            {
                return HttpNotFound();
            }
            else
            {
                Obj.UserID = personalDetail.UserID;
                Obj.FirstName = personalDetail.FName;
                Obj.LastName = personalDetail.LName;
                Obj.City = personalDetail.City;

            }
            return View(Obj);
        }
    }


    [HttpPost, ActionName("Delete")]

    public ActionResult DeleteConfirmed(int? id)
    {
        using (var db = new RegistrationEntities())
        {
            Registration.DAL.RegisterDbTable personalDetail = db.RegisterDbTable.Find(id);
            db.RegisterDbTable.Remove(personalDetail);
            db.SaveChanges();
            return RedirectToAction("where u want it to redirect");
        }
    }

model

 public class RegisterTable
{

    public int UserID
    { get; set; }


    public string FirstName
    { get; set; }


    public string LastName
    { get; set; }


    public string Password
    { get; set; }


    public string City
    { get; set; }

} 

view from which u will call it

 <table class="table">
    <tr>
        <th>
            FirstName
        </th>
        <th>
            LastName
        </th>

        <th>
            City
        </th>
        <th></th>
    </tr>

    @foreach (var item in Model)
    {
        <tr>
            <td> @item.FirstName </td>
            <td> @item.LastName </td>
            <td> @item.City</td>
            <td>
                <a href="@Url.Action("Edit", "Registeration", new { id = item.UserID })">Edit</a> |
                <a href="@Url.Action("Details", "Registeration", new { id = item.UserID })">Details</a> |
                <a href="@Url.Action("Delete", "Registeration", new { id = item.UserID })">Delete</a>

            </td>
        </tr>

    }

</table>

i hope this will be easy for u to understand

Instead of Tick event, use Elapsed event.

timer.Elapsed += new EventHandler(TimerEventProcessor);

and change the signiture of TimerEventProcessor method;

private void TimerEventProcessor(object sender, ElapsedEventArgs e)
{
  label1.Text = _counter.ToString();
  _counter += 1;
}

When using kill -3 one should see the thread dump in the standard output. Most of the application servers write the standard output to a separate file. You should find it there when using kill -3. There are multiple ways of getting thread dumps:

• kill -3 <PID>: Gives output to standard output.
• If one has access to the console window where server is running, one can use Ctrl+Break combination of keys to generate the stack trace on STDOUT.

• For hotspot VM's we can also use jstack command to generate a thread dump. It’s a part of the JDK. Syntax is as follows:

  Usage:
  
  jstack [-l] <pid> (to connect to running process)
  jstack -F [-m] [-l] <pid>(to connect to a hung process)
  
   - For JRockit JVM we can use JRCMD command which comes with JDK Syntax: 
     jrcmd <jrockit pid> [<command> [<arguments>]] [-l] [-f file] [-p] -h]
  

From the jQuery API: with the setting of dataType, If none is specified, jQuery will try to infer it with $.parseJSON() based on the MIME type (the MIME type for JSON text is "application/json") of the response (in 1.4 JSON will yield a JavaScript object).

Or you can set the dataType to json to convert it automatically.

Here is the cleanest approach I've found:

require("child_process").spawn('bash', ['./script.sh'], {
  cwd: process.cwd(),
  detached: true,
  stdio: "inherit"
});

A loose analogy is, "Meteor is to Node as Rails is to Ruby." It's a large, opinionated framework that uses Node on the server. Node itself is just a low-level framework providing functions for sending and receiving HTTP requests and performing other I/O.

Meteor is radically ambitious: By default, every page it serves is actually a Handlebars template that's kept in sync with the server. Try the Leaderboard example: You create a template that simply says "List the names and scores," and every time any client changes a name or score, the page updates with the new data—not just for that client, but for everyone viewing the page.

Another difference: While Node itself is stable and widely used in production, Meteor is in a "preview" state. There are serious bugs, and certain things that don't fit with Meteor's data-centric conceptual model (such as animations) are very hard to do.

If you love playing with new technologies, give Meteor a spin. If you want a more traditional, stable web framework built on Node, take a look at Express.

You can try This way

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.itclanbd.spaceusers">

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity android:name=".Login_Activity"
        android:screenOrientation="portrait">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

You need to include "Main class" attribute in Manisfest.mf file in Jar

For example: Main-Class: MyClassName

Second thing, To add Manifest file in Your jar, You can manually create file in your workspace folder, and refresh in Eclipse Project explorer.

While exporting, Eclipse will create a Jar which will include your manifest.

Cheers !!

IISReset stops and restarts the entire web server (including non-ASP.NET apps)
Recycling an app pool will only affect applications running in that app pool.
Editing the web.config in a web application only affects that web application (recycles just that app).
Editing the machine.config on the machine will recycle all app pools running.

IIS will monitor the /bin directory of your application. Whenever a change is detected in those dlls, it will recycle the app and re-load those new dlls. It also monitors the web.config & machine.config in the same way and performs the same action for the applicable apps.

To avoid problems with layout_* params not being properly used, you need to make sure that when you inflate your custom layout that you specify a correct ViewGroup as a parent.

Many examples pass null here, but instead you can pass the existing Toast ViewGroup as your parent.

val toast = Toast.makeText(this, "", Toast.LENGTH_LONG)
val layout = LayoutInflater.from(this).inflate(R.layout.view_custom_toast, toast.view.parent as? ViewGroup?)
toast.view = layout
toast.show()

Here we replace the existing Toast view with our custom view. Once you have a reference to your layout "layout" you can then update any images/text views that it may contain.

This solution also prevents any "View not attached to window manager" crashes from using null as a parent.

Also, avoid using ConstraintLayout as your custom layout root, this seems to not work when used inside a Toast.

You can check your eav_attributes table to find the relevant attribute IDs for each image role, such as;

Then you can use those to set whichever role to any other role for all products like so;

UPDATE catalog_product_entity_varchar AS `v` INNER JOIN (SELECT `value`,`entity_id` FROM `catalog_product_entity_varchar` WHERE `attribute_id`=86) AS `j` ON `j`.`entity_id`=`v`.entity_id SET `v`.`value`=j.`value` WHERE `v`.attribute_id = 85 AND `v`.`entity_id`=`j`.`entity_id`

The above will set all your 'base' roles to the 'small' image of the same product.

Use the DateTime.SpecifyKind static method.

Creates a new DateTime object that has the same number of ticks as the specified DateTime, but is designated as either local time, Coordinated Universal Time (UTC), or neither, as indicated by the specified DateTimeKind value.

Example:

DateTime dateTime = DateTime.Now;
DateTime other = DateTime.SpecifyKind(dateTime, DateTimeKind.Utc);

Console.WriteLine(dateTime + " " + dateTime.Kind); // 6/1/2011 4:14:54 PM Local
Console.WriteLine(other + " " + other.Kind);       // 6/1/2011 4:14:54 PM Utc

Checklist:

1. Are you using the right private key .pem file?

2. Are its permissions set correctly? (My Amazon-brand AMIs work with 644, but Red hat must be at least 600 or 400. Don't know about Ubuntu.)

3. Are you using the right username in your ssh line? Amazon-branded = "ec2-user", Red Hat = "root", Ubuntu = "ubuntu". User can be specified as "ssh -i pem usename@hostname" OR "ssh -l username -i pem hostname"

I often use row_number() as a quick way to discard duplicate records from my select statements. Just add a where clause. Something like...

select a,b,rn 
  from (select a, b, row_number() over (partition by a,b order by a,b) as rn           
          from table) 
 where rn=1;

Just check your preinstall scripts if you have one. Sometimes to restrict the versions of node and npm one needs to run a project.

If that's the case you need to install semver manually via npm install -g semver

Use the regular Expression below in to validate a string to make sure it contains numbers, letters, or space only:

[a-zA-Z0-9 ]

function insertOrdered(array, elem) {
    let _array = array;
    let i = 0;
    while ( i < array.length && array[i] < elem ) {i ++};
    _array.splice(i, 0, elem);
    return _array;
}

You can use matplotlib for this. matplotlib has a mplot3d module that will do exactly what you want.

from matplotlib import pyplot
from mpl_toolkits.mplot3d import Axes3D
import random


fig = pyplot.figure()
ax = Axes3D(fig)

sequence_containing_x_vals = list(range(0, 100))
sequence_containing_y_vals = list(range(0, 100))
sequence_containing_z_vals = list(range(0, 100))

random.shuffle(sequence_containing_x_vals)
random.shuffle(sequence_containing_y_vals)
random.shuffle(sequence_containing_z_vals)

ax.scatter(sequence_containing_x_vals, sequence_containing_y_vals, sequence_containing_z_vals)
pyplot.show()

The code above generates a figure like:

For very large files I'd do something like this

string tempFile = Path.GetTempFileName();

using(var sr = new StreamReader("file.txt"))
using(var sw = new StreamWriter(tempFile))
{
    string line;

    while((line = sr.ReadLine()) != null)
    {
         if(line != "removeme")
             sw.WriteLine(line);
    }
}

File.Delete("file.txt");
File.Move(tempFile, "file.txt");

Update I originally wrote this back in 2009 and I thought it might be interesting with an update. Today you could accomplish the above using LINQ and deferred execution

var tempFile = Path.GetTempFileName();
var linesToKeep = File.ReadLines(fileName).Where(l => l != "removeme");

File.WriteAllLines(tempFile, linesToKeep);

File.Delete(fileName);
File.Move(tempFile, fileName);

The code above is almost exactly the same as the first example, reading line by line and while keeping a minimal amount of data in memory.

A disclaimer might be in order though. Since we're talking about text files here you'd very rarely have to use the disk as an intermediate storage medium. If you're not dealing with very large log files there should be no problem reading the contents into memory instead and avoid having to deal with the temporary file.

File.WriteAllLines(fileName, 
    File.ReadLines(fileName).Where(l => l != "removeme").ToList());

Note that The .ToList is crucial here to force immediate execution. Also note that all the examples assume the text files are UTF-8 encoded.

I got this error in an Ubuntu Docker container. I believe the cause was that the container was missing CA certs. To fix it, I had to run:

apt-get update
apt-get install ca-certificates

Sure enough, for me, it was the hotfixes. In Add/Remove Programs, check the "Show Updates" box, and remove ALL of the Hotfixes associated with your version of VS2008. Then try the "Change/Remove" button - it should now proceed without a hitch.

Well, it did for me, anyway... ;-)

Don't do it inside the loop. Make a list, then combine them outside the loop.

datalist = list()

for (i in 1:5) {
    # ... make some data
    dat <- data.frame(x = rnorm(10), y = runif(10))
    dat$i <- i  # maybe you want to keep track of which iteration produced it?
    datalist[[i]] <- dat # add it to your list
}

big_data = do.call(rbind, datalist)
# or big_data <- dplyr::bind_rows(datalist)
# or big_data <- data.table::rbindlist(datalist)

This is a much more R-like way to do things. It can also be substantially faster, especially if you use dplyr::bind_rows or data.table::rbindlist for the final combining of data frames.

Another approach which uses LINQ:

 var list = str.Split(' ').Where(s => !string.IsNullOrWhiteSpace(s));
 str = string.Join(" ", list);

If you want to view readme.txt in your repository without checking it out:

$ svn cat http://svn.red-bean.com/repos/test/readme.txt
This is a README file. You should read this.

Tip: If your working copy is out of date (or you have local modifications) and you want to see the HEAD revision of a file in your working copy, svn cat will automatically fetch the HEAD revision when you give it a path:

$ cat foo.c
This file is in my local working copy and has changes that I've made.

$ svn cat foo.c
Latest revision fresh from the repository!

Source

This runs on page load.

<script type="text/javascript">
    $(function () {
        $("#header").focus();
    });
</script>

SWIFT 3

To add a gradient layer on your view

• Bind your view outlet

  @IBOutlet var YOURVIEW : UIView!
  

• Define the CAGradientLayer()

  var gradient = CAGradientLayer()
  

• Here is the code you have to write in your viewDidLoad

  YOURVIEW.layoutIfNeeded()

  gradient.startPoint = CGPoint(x: CGFloat(0), y: CGFloat(1)) gradient.endPoint = CGPoint(x: CGFloat(1), y: CGFloat(0)) gradient.frame = YOURVIEW.bounds gradient.colors = [UIColor.red.cgColor, UIColor.green.cgColor] gradient.colors = [ UIColor(red: 255.0/255.0, green: 56.0/255.0, blue: 224.0/255.0, alpha: 1.0).cgColor,UIColor(red: 86.0/255.0, green: 13.0/255.0, blue: 232.0/255.0, alpha: 1.0).cgColor,UIColor(red: 16.0/255.0, green: 173.0/255.0, blue: 245.0/255.0, alpha: 1.0).cgColor] gradient.locations = [0.0 ,0.6 ,1.0] YOURVIEW.layer.insertSublayer(gradient, at: 0)

The short answer is yes, yes there is a way to get around mysql_real_escape_string(). #For Very OBSCURE EDGE CASES!!!

The long answer isn't so easy. It's based off an attack demonstrated here.

The Attack

So, let's start off by showing the attack...

mysql_query('SET NAMES gbk');
$var = mysql_real_escape_string("\xbf\x27 OR 1=1 /*");
mysql_query("SELECT * FROM test WHERE name = '$var' LIMIT 1");

In certain circumstances, that will return more than 1 row. Let's dissect what's going on here:

1. Selecting a Character Set

   mysql_query('SET NAMES gbk');
   

   For this attack to work, we need the encoding that the server's expecting on the connection both to encode ' as in ASCII i.e. 0x27 and to have some character whose final byte is an ASCII \ i.e. 0x5c. As it turns out, there are 5 such encodings supported in MySQL 5.6 by default: big5, cp932, gb2312, gbk and sjis. We'll select gbk here.

   Now, it's very important to note the use of SET NAMES here. This sets the character set ON THE SERVER. If we used the call to the C API function mysql_set_charset(), we'd be fine (on MySQL releases since 2006). But more on why in a minute...

2. The Payload

   The payload we're going to use for this injection starts with the byte sequence 0xbf27. In gbk, that's an invalid multibyte character; in latin1, it's the string ¿'. Note that in latin1 and gbk, 0x27 on its own is a literal ' character.

   We have chosen this payload because, if we called addslashes() on it, we'd insert an ASCII \ i.e. 0x5c, before the ' character. So we'd wind up with 0xbf5c27, which in gbk is a two character sequence: 0xbf5c followed by 0x27. Or in other words, a valid character followed by an unescaped '. But we're not using addslashes(). So on to the next step...

3. mysql_real_escape_string()

   The C API call to mysql_real_escape_string() differs from addslashes() in that it knows the connection character set. So it can perform the escaping properly for the character set that the server is expecting. However, up to this point, the client thinks that we're still using latin1 for the connection, because we never told it otherwise. We did tell the server we're using gbk, but the client still thinks it's latin1.

   Therefore the call to mysql_real_escape_string() inserts the backslash, and we have a free hanging ' character in our "escaped" content! In fact, if we were to look at $var in the gbk character set, we'd see:

   ?' OR 1=1 /*

   Which is exactly what the attack requires.

4. The Query

   This part is just a formality, but here's the rendered query:

   SELECT * FROM test WHERE name = '?' OR 1=1 /*' LIMIT 1
   

Congratulations, you just successfully attacked a program using mysql_real_escape_string()...

The Bad

It gets worse. PDO defaults to emulating prepared statements with MySQL. That means that on the client side, it basically does a sprintf through mysql_real_escape_string() (in the C library), which means the following will result in a successful injection:

$pdo->query('SET NAMES gbk');
$stmt = $pdo->prepare('SELECT * FROM test WHERE name = ? LIMIT 1');
$stmt->execute(array("\xbf\x27 OR 1=1 /*"));

Now, it's worth noting that you can prevent this by disabling emulated prepared statements:

$pdo->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);

This will usually result in a true prepared statement (i.e. the data being sent over in a separate packet from the query). However, be aware that PDO will silently fallback to emulating statements that MySQL can't prepare natively: those that it can are listed in the manual, but beware to select the appropriate server version).

The Ugly

I said at the very beginning that we could have prevented all of this if we had used mysql_set_charset('gbk') instead of SET NAMES gbk. And that's true provided you are using a MySQL release since 2006.

If you're using an earlier MySQL release, then a bug in mysql_real_escape_string() meant that invalid multibyte characters such as those in our payload were treated as single bytes for escaping purposes even if the client had been correctly informed of the connection encoding and so this attack would still succeed. The bug was fixed in MySQL 4.1.20, 5.0.22 and 5.1.11.

But the worst part is that PDO didn't expose the C API for mysql_set_charset() until 5.3.6, so in prior versions it cannot prevent this attack for every possible command! It's now exposed as a DSN parameter.

The Saving Grace

As we said at the outset, for this attack to work the database connection must be encoded using a vulnerable character set. utf8mb4 is not vulnerable and yet can support every Unicode character: so you could elect to use that instead—but it has only been available since MySQL 5.5.3. An alternative is utf8, which is also not vulnerable and can support the whole of the Unicode Basic Multilingual Plane.

Alternatively, you can enable the NO_BACKSLASH_ESCAPES SQL mode, which (amongst other things) alters the operation of mysql_real_escape_string(). With this mode enabled, 0x27 will be replaced with 0x2727 rather than 0x5c27 and thus the escaping process cannot create valid characters in any of the vulnerable encodings where they did not exist previously (i.e. 0xbf27 is still 0xbf27 etc.)—so the server will still reject the string as invalid. However, see @eggyal's answer for a different vulnerability that can arise from using this SQL mode.

Safe Examples

The following examples are safe:

mysql_query('SET NAMES utf8');
$var = mysql_real_escape_string("\xbf\x27 OR 1=1 /*");
mysql_query("SELECT * FROM test WHERE name = '$var' LIMIT 1");

Because the server's expecting utf8...

mysql_set_charset('gbk');
$var = mysql_real_escape_string("\xbf\x27 OR 1=1 /*");
mysql_query("SELECT * FROM test WHERE name = '$var' LIMIT 1");

Because we've properly set the character set so the client and the server match.

$pdo->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
$pdo->query('SET NAMES gbk');
$stmt = $pdo->prepare('SELECT * FROM test WHERE name = ? LIMIT 1');
$stmt->execute(array("\xbf\x27 OR 1=1 /*"));

Because we've turned off emulated prepared statements.

$pdo = new PDO('mysql:host=localhost;dbname=testdb;charset=gbk', $user, $password);
$stmt = $pdo->prepare('SELECT * FROM test WHERE name = ? LIMIT 1');
$stmt->execute(array("\xbf\x27 OR 1=1 /*"));

Because we've set the character set properly.

$mysqli->query('SET NAMES gbk');
$stmt = $mysqli->prepare('SELECT * FROM test WHERE name = ? LIMIT 1');
$param = "\xbf\x27 OR 1=1 /*";
$stmt->bind_param('s', $param);
$stmt->execute();

Because MySQLi does true prepared statements all the time.

Wrapping Up

If you:

• Use Modern Versions of MySQL (late 5.1, all 5.5, 5.6, etc) AND mysql_set_charset() / $mysqli->set_charset() / PDO's DSN charset parameter (in PHP = 5.3.6)

OR

• Don't use a vulnerable character set for connection encoding (you only use utf8 / latin1 / ascii / etc)

You're 100% safe.

Otherwise, you're vulnerable even though you're using mysql_real_escape_string()...

i have tried this one and it worked for me. hope it works for others too.

1. Open build.gradle module file
2. downgrade you sdkversion from 25 to 24 or 23
3. add 'multiDexEnabled true'
4. comment this line : compile 'com.android.support:appcompat-v7:25.1.0' (if it's in 'dependencies')
5. Sync your project and ready to go.

Here i have attached screenshot to explain things. Go through this steps

happy to help.

thanks.

To "loop" and take advantage of Spark's parallel computation framework, you could define a custom function and use map.

def customFunction(row):

   return (row.name, row.age, row.city)

sample2 = sample.rdd.map(customFunction)

or

sample2 = sample.rdd.map(lambda x: (x.name, x.age, x.city))

The custom function would then be applied to every row of the dataframe. Note that sample2 will be a RDD, not a dataframe.

Map may be needed if you are going to perform more complex computations. If you just need to add a simple derived column, you can use the withColumn, with returns a dataframe.

sample3 = sample.withColumn('age2', sample.age + 2)

First step:

pip uninstall numpy
pip uninstall opencv-python

Second step:

pip install numpy
pip install opencv-python

You can easily verify a certificate chain with openssl. The fullchain will include the CA cert so you should see details about the CA and the certificate itself.

openssl x509 -in fullchain.pem -text -noout

there's nothing wrong with using CHAR like that.. I think your problem is that you have a space in your tablename. It should be: charteredflight or chartered_flight..

From .NET 2.0 you shouldn't need to do this. If you do not explicitly set the Proxy property on a web request it uses the value of the static WebRequest.DefaultWebProxy. If you wanted to change the proxy being used by all subsequent WebRequests, you can set this static DefaultWebProxy property.

The default behaviour of WebRequest.DefaultWebProxy is to use the same underlying settings as used by Internet Explorer.

If you wanted to use different proxy settings to the current user then you would need to code

WebRequest webRequest = WebRequest.Create("http://stackoverflow.com/");
webRequest.Proxy = new WebProxy("http://proxyserver:80/",true);

or

WebRequest.DefaultWebProxy = new WebProxy("http://proxyserver:80/",true);

You should also remember the object model for proxies includes the concept that the proxy can be different depending on the destination hostname. This can make things a bit confusing when debugging and checking the property of webRequest.Proxy. Call

webRequest.Proxy.GetProxy(new Uri("http://google.com.au")) to see the actual details of the proxy server that would be used.

There seems to be some debate about whether you can set webRequest.Proxy or WebRequest.DefaultWebProxy = null to prevent the use of any proxy. This seems to work OK for me but you could set it to new DefaultProxy() with no parameters to get the required behaviour. Another thing to check is that if a proxy element exists in your applications config file, the .NET Framework will NOT use the proxy settings in Internet Explorer.

The MSDN Magazine article Take the Burden Off Users with Automatic Configuration in .NET gives further details of what is happening under the hood.

There's also a pretty handy tool called binwalk, written in python, which provides for binary pattern matching (and quite a lot more besides). Here's how you would search for a binary string, which outputs the offset in decimal and hex (from the docs):

$ binwalk -R "\x00\x01\x02\x03\x04" firmware.bin
DECIMAL     HEX         DESCRIPTION
--------------------------------------------------------------------------
377654      0x5C336     Raw string signature

Let's say your primary key is an Integer and the object you save is "ticket", then you can get it like this. When you save the object, a Serializable id is always returned

Integer id = (Integer)session.save(ticket);

I would normally handle this on the server-side of things (meaning PHP, ASP.NET, etc). The idea is that when the page is loaded, the server-side controls the mechanism (perhaps by setting a CSS value) that is reflected in the resulting HTML the client sees.

Your initial page is a complete HTML page containing a form, the contents of which are posted to insert.php when the submit button is clicked, but insert.php needs to process the form's contents and do something with them, like add them to a database, or output them to a new page. Your current insert.php just outputs the contents of the title field, so your browser tries to interpret that as an HTML page, and fails, obviously, because it isn't valid HTML (i.e. it isn't contained in an 'HTML' tag, etc.).

Your insert.php needs to output the necessary HTML, and insert the form data in there somewhere.

For example:

<?php 

   $title = $_POST["title"];
   $price = $_POST["price"];

  echo '<html xmlns="http://www.w3.org/1999/xhtml">';
  echo '<head>';
  echo '<meta http-equiv="content-type" content="text/html; charset=utf-8" />';
  echo '<title>';
  echo $title;
  echo '</title>';
  echo '</head>';
  echo '<body>';
  echo 'Hello, world.';
  echo '</body>';

 ?>

MySQL ORDER BY Sorting alphanumeric on correct order

example:

SELECT `alphanumericCol` FROM `tableName` ORDER BY 
  SUBSTR(`alphanumericCol` FROM 1 FOR 1), 
  LPAD(lower(`alphanumericCol`), 10,0) ASC

output:

1
2
11
21
100
101
102
104
S-104A
S-105
S-107
S-111