This worked for me.

application.properties, used jdbc-url instead of url:

datasource.apidb.jdbc-url=jdbc:mysql://localhost:3306/apidb?useSSL=false
datasource.apidb.username=root
datasource.apidb.password=123
datasource.apidb.driver-class-name=com.mysql.jdbc.Driver

Configuration class:

@Configuration
@EnableJpaRepositories(
        entityManagerFactoryRef = "fooEntityManagerFactory",
        basePackages = {"com.buddhi.multidatasource.foo.repository"}
)
public class FooDataSourceConfig {

    @Bean(name = "fooDataSource")
    @ConfigurationProperties(prefix = "datasource.foo")
    public HikariDataSource dataSource() {
        return DataSourceBuilder.create().type(HikariDataSource.class).build();
    }

    @Bean(name = "fooEntityManagerFactory")
    public LocalContainerEntityManagerFactoryBean fooEntityManagerFactory(
            EntityManagerFactoryBuilder builder,
            @Qualifier("fooDataSource") DataSource dataSource
    ) {
        return builder
                .dataSource(dataSource)
                .packages("com.buddhi.multidatasource.foo.model")
                .persistenceUnit("fooDb")
                .build();
    }
}

I also have the same error. I have updated the jackson library version and error has gone.

<!-- Jackson to convert Java object to Json -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.9.4</version>
        </dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.9.4</version>
        </dependency>
    </dependencies>

and also check your data classes that have you created getters and setters for all the properties.

None of the above helped for me.

I am using Kubernetes on Google Cloud with tesla k-80 gpu.

Follow along this guide to ensure you installed everything correctly: https://cloud.google.com/kubernetes-engine/docs/how-to/gpus

I was missing few important things:

1. Installing NVIDIA GPU device drivers On your NODES. To do this use:

For COS node:

kubectl apply -f https://raw.githubusercontent.com/GoogleCloudPlatform/container-engine-accelerators/master/nvidia-driver-installer/cos/daemonset-preloaded.yaml

For UBUNTU node:

kubectl apply -f https://raw.githubusercontent.com/GoogleCloudPlatform/container-engine-accelerators/master/nvidia-driver-installer/ubuntu/daemonset-preloaded.yaml

Make sure an update was rolled to your nodes. Restart them if upgrades are off.

2. I use this image nvidia/cuda:10.1-base-ubuntu16.04 in my docker

3. You have to set gpu limit! This is the only way the node driver can communicate with the pod. In your yaml configuration add this under your container:

   resources:
     limits:
       nvidia.com/gpu: 1
   

For the Collatz problem, you can get a significant boost in performance by caching the "tails". This is a time/memory trade-off. See: memoization (https://en.wikipedia.org/wiki/Memoization). You could also look into dynamic programming solutions for other time/memory trade-offs.

Example python implementation:

import sys

inner_loop = 0

def collatz_sequence(N, cache):
    global inner_loop

    l = [ ]
    stop = False
    n = N

    tails = [ ]

    while not stop:
        inner_loop += 1
        tmp = n
        l.append(n)
        if n <= 1:
            stop = True  
        elif n in cache:
            stop = True
        elif n % 2:
            n = 3*n + 1
        else:
            n = n // 2
        tails.append((tmp, len(l)))

    for key, offset in tails:
        if not key in cache:
            cache[key] = l[offset:]

    return l

def gen_sequence(l, cache):
    for elem in l:
        yield elem
        if elem in cache:
            yield from gen_sequence(cache[elem], cache)
            raise StopIteration

if __name__ == "__main__":
    le_cache = {}

    for n in range(1, 4711, 5):
        l = collatz_sequence(n, le_cache)
        print("{}: {}".format(n, len(list(gen_sequence(l, le_cache)))))

    print("inner_loop = {}".format(inner_loop))

This is what worked for me. Issue is earlier I didn't set Content Type(header) when I used exchange method.

MultiValueMap<String, String> map = new LinkedMultiValueMap<String, String>();
map.add("param1", "123");
map.add("param2", "456");
map.add("param3", "789");
map.add("param4", "123");
map.add("param5", "456");

HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);

final HttpEntity<MultiValueMap<String, String>> entity = new HttpEntity<MultiValueMap<String, String>>(map ,
        headers);
JSONObject jsonObject = null;

try {
    RestTemplate restTemplate = new RestTemplate();
    ResponseEntity<String> responseEntity = restTemplate.exchange(
            "https://url", HttpMethod.POST, entity,
            String.class);

    if (responseEntity.getStatusCode() == HttpStatus.CREATED) {
        try {
            jsonObject = new JSONObject(responseEntity.getBody());
        } catch (JSONException e) {
            throw new RuntimeException("JSONException occurred");
        }
    }
  } catch (final HttpClientErrorException httpClientErrorException) {
        throw new ExternalCallBadRequestException();
  } catch (HttpServerErrorException httpServerErrorException) {
        throw new ExternalCallServerErrorException(httpServerErrorException);
  } catch (Exception exception) {
        throw new ExternalCallServerErrorException(exception);
    } 

ExternalCallBadRequestException and ExternalCallServerErrorException are the custom exceptions here.

Note: Remember HttpClientErrorException is thrown when a 4xx error is received. So if the request you send is wrong either setting header or sending wrong data, you could receive this exception.

I had a semicolon at the end, and gave me this error.

This is not valid TypeScript code. You can not have method invocations in the body of a class.

// INVALID CODE
export class AppComponent {
  public n: number = 1;
  setTimeout(function() {
    n = n + 10;
  }, 1000);
}

Instead move the setTimeout call to the constructor of the class. Additionally, use the arrow function => to gain access to this.

export class AppComponent {
  public n: number = 1;

  constructor() {
    setTimeout(() => {
      this.n = this.n + 10;
    }, 1000);
  }

}

In TypeScript, you can only refer to class properties or methods via this. That's why the arrow function => is important.

I managed to fix it finally. The problem is not related to HikariCP. The problem persisted because of some complex methods in REST controllers executing multiple changes in DB through JPA repositories. For some reasons calls to these interfaces resulted in a growing number of "freezed" active connections, exhausting the pool. Either annotating these methods as @Transactional or enveloping all the logic in a single call to transactional service method seem to solve the problem.

You also need to be sure that returned bean is not empty (and can be serialized by Jackson). In my particular case I tried to return an instance of an object without getters and setters and without any jackson annotation and with fields equals to null. I got following message:

com.fasterxml.jackson.databind.JsonMappingException:
    No serializer found for class com.foo.bar.Baz and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) )

The in operator only works on objects. You are using it on a string. Make sure your value is an object before you using $.each. In this specific case, you have to parse the JSON:

$.each(JSON.parse(myData), ...);

I did experience this problem because I did not set the platform correctly.

So in my macOS app I had the platform set to:

platform :ios

instead of

platform :osx

The MySQL dependency should be like the following syntax in the pom.xml file.

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.21</version>
    </dependency>

Make sure the syntax, groupId, artifactId, Version has included in the dependancy.

I also had the same problem. I use "Postman" for JSON request. The code itself is not wrong. I simply set the content type to JSON (application/json) and it worked, as you can see on the image below

The error is:

Can not deserialize instance of java.lang.String out of START_ARRAY token at [Source: line: 1, column: 1095] (through reference chain: JsonGen["platforms"])

In JSON, platforms look like this:

"platforms": [
    {
        "platform": "iphone"
    },
    {
        "platform": "ipad"
    },
    {
        "platform": "android_phone"
    },
    {
        "platform": "android_tablet"
    }
]

So try change your pojo to something like this:

private List platforms;

public List getPlatforms(){
    return this.platforms;
}

public void setPlatforms(List platforms){
    this.platforms = platforms;
}

EDIT: you will need change mobile_networks too. Will look like this:

private List mobile_networks;

public List getMobile_networks() {
    return mobile_networks;
}

public void setMobile_networks(List mobile_networks) {
    this.mobile_networks = mobile_networks;
}

Resolve issue Immediate, It's related to internal security

We, SnippetBucket.com working for enterprise linux RedHat, found httpd server don't allow proxy to run, neither localhost or 127.0.0.1, nor any other external domain.

As investigate in server log found

[error] (13)Permission denied: proxy: AJP: attempt to connect to
   10.x.x.x:8069 (virtualhost.virtualdomain.com) failed

Audit log found similar port issue

type=AVC msg=audit(1265039669.305:14): avc:  denied  { name_connect } for  pid=4343 comm="httpd" dest=8069 
scontext=system_u:system_r:httpd_t:s0 tcontext=system_u:object_r:port_t:s0 tclass=tcp_socket

Due to internal default security of linux, this cause, now to fix (temporary)

 /usr/sbin/setsebool httpd_can_network_connect 1

Resolve Permanent Issue

/usr/sbin/setsebool -P httpd_can_network_connect 1

Future readers.

I have had the best luck figuring out these issues....using this method:

private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(MyDaoObject.class);

@Transactional
public void save(MyObject item) {


    try {
         /* this is whatever code you have already...this is just an example */
        entityManager.persist(item);
        entityManager.flush();
    }
    catch(Exception ex)
    {
        /* below works in conjunction with concrete logging framework */
        logger.error(ex.getMessage(), ex);
        throw ex;
    }
}

Now, slf4j is just a fascade (interfaces, adapter)..... you need a concrete.

When picking log4j2, you want to persist the

%throwable

So you are not flying blind, you can see %throwable at the below URL (on how you defined %throwable so it shows up in the logging. If you're not using log4j2 as the concrete, you'll have to figure out your logging framework's version of %throwable)

https://www.baeldung.com/log4j2-appenders-layouts-filters

That %throwable, when logged, will have the actual SQL exception in it.

if throwable is giving you a fuss, you can do this (the below is NOT great since it does recursive log calls)

@Transactional
public void save(MyObject item) {


    try {
         /* this is whatever code you have already...this is just an example */
        entityManager.persist(item);
        entityManager.flush();
    catch(Exception ex)
    {
        logger.error(ex.getMessage(), ex);
        //throw ex;
        Throwable thr = ex;
        /* recursive logging warning !!! could perform very poorly, not for production....alternate idea is to use Stringbuilder and log the stringbuilder result */
        while (null != thr) {
            logger.error(thr.getMessage(), thr);
            thr = thr.getCause();
        }
    }
}

In my case the following solved the problem:

1. Downloading the "32-bit Oracle Data Access Components (ODAC) with Oracle Developer Tools for Visual Studio" from http://www.oracle.com/technetwork/topics/dotnet/utilsoft-086879.html
2. Then adding reference oracle.dataaccess.dll to the bin file by browsing the file location or just from the refence list in .NET tab.

Total programmatic approach to set rounded corners and add random background color to a View. I have not tested the code, but you get the idea.

 GradientDrawable shape =  new GradientDrawable();
 shape.setCornerRadius( 8 );

 // add some color
 // You can add your random color generator here
 // and set color
 if (i % 2 == 0) {
  shape.setColor(Color.RED);
 } else {
  shape.setColor(Color.BLUE);
 }

 // now find your view and add background to it
 View view = (LinearLayout) findViewById( R.id.my_view );
 view.setBackground(shape);

Here we are using gradient drawable so that we can make use of GradientDrawable#setCornerRadius because ShapeDrawable DOES NOT provide any such method.

I've faced with SIGSEGV on Android 4.4.4 (Nexuses, Samsungs) And it turned out that fatal error was in parsing null String using DecimalFormat

 static DecimalFormat decimalFormat = new DecimalFormat("###,###.###");
 void someMethod(String value) {
...
    Number number = decimalFormat.parse(value);//value is null, SIGSEGV will happen`
...
}

On Android > 21 it was handled successfully with try/catch

When you have everything #included, an unresolved external symbol is often a missing * or & in the declaration or definition of a function.

HttpClient 4.4 suffered from a bug in this area relating to validating possibly stale connections before returning to the requestor. It didn't validate whether a connection was stale, and this then results in an immediate NoHttpResponseException.

This issue was resolved in HttpClient 4.4.1. See this JIRA and the release notes

I had the same problem in my grails project. The Bug was, that i overwrite the getter method of a collection field. This returned always a new version of the collection in other thread.

class Entity {
    List collection

    List getCollection() {
        return collection.unique()
    }
}

The solution was to rename the getter method:

class Entity {
    List collection

    List getUniqueCollection() {
        return collection.unique()
    }
}

The best thing is to actually use the kernel makefile to install the module:

Here is are snippets to add to your Makefile

around the top add:

PWD=$(shell pwd)
VER=$(shell uname -r)
KERNEL_BUILD=/lib/modules/$(VER)/build
# Later if you want to package the module binary you can provide an INSTALL_ROOT
# INSTALL_ROOT=/tmp/install-root

around the end add:

install:
        $(MAKE) -C $(KERNEL_BUILD) M=$(PWD) \
           INSTALL_MOD_PATH=$(INSTALL_ROOT) modules_install

and then you can issue

    sudo make install

this will put it either in /lib/modules/$(uname -r)/extra/

or /lib/modules/$(uname -r)/misc/

and run depmod appropriately

I'm using zip.js and it seems to be quite useful. It's worth a look!

Check the Unzip demo, for example.

Ok, when you know for sure other applications that used the same process worked; on your new application make sure you have the data access reference and the three dll files...

I downloaded ODAC1120320Xcopy_32bit this from the Oracle site:

http://www.oracle.com/technetwork/database/windows/downloads/utilsoft-087491.html

Reference: Oracle.DataAccess.dll (ODAC1120320Xcopy_32bit\odp.net4\odp.net\bin\4\Oracle.DataAccess.dll)

Include these 3 files within your project:

• oci.dll (ODAC1120320Xcopy_32bit\instantclient_11_2\oci.dll)
• oraociei11.dll (ODAC1120320Xcopy_32bit\instantclient_11_2\oraociei11.dll)
• OraOps11w.dll (ODAC1120320Xcopy_32bit\odp.net4\bin\OraOps11w.dll)

When I tried to create another application with the correct reference and files I would receive that error message.

The fix: Highlighted all three of the files and selected "Copy To Output" = Copy if newer. I did copy if newer since one of the dll's is above 100MB and any updates I do will not copy those files again.

I also ran into a registry error, this fixed it.

public void updateRegistryForOracleNLS()
{
    RegistryKey oracle = Registry.LocalMachine.CreateSubKey(@"SOFTWARE\ORACLE");
    oracle.SetValue("NLS_LANG", "AMERICAN_AMERICA.WE8MSWIN1252");
}

For the Oracle nls_lang list, see this site: https://docs.oracle.com/html/B13804_02/gblsupp.htm

After that, everything worked smooth.

I hope it helps.

Here's what I did to solve this problem that persisted for 3 long hours:

1. Under Oracle home located at C:\oracle\product\11.2.0 I had a folder called client_1 where I had previously installed ODP.NET bits for Windows 64 bits.

2. Later while trying to debug my ASP.NET Web API app with Visual Studio 2012, I kept getting this error message: The provider is not compatible with the version of Oracle client.

3. Searching Google I found that this was happening because I was using ODP.NET 64 bits. Then I grabbed ODP.NET for Windows 32 bits and installed it but I kept getting the same error message.

4. SOLUTION: deleted the folder client_1 and resinstalled ODP.NET 32 bits. Somewhat the installer was mixing bits from the 64 bit version with the 32 bit version. Go figure...

5. Now I'm happy again and I can open a new OracleConnection. FINALLY! :)

There are two points to considerate.

1) This source code worked for me:

private static string Execute(string credentials, string scriptDir, string scriptFilename)
{ 
  Process process = new Process();
  process.StartInfo.UseShellExecute = false;
  process.StartInfo.WorkingDirectory = scriptDir;
  process.StartInfo.RedirectStandardOutput = true;
  process.StartInfo.FileName = "sqlplus";
  process.StartInfo.Arguments = string.Format("{0} @{1}", credentials, scriptFilename);
  process.StartInfo.CreateNoWindow = true;

  process.Start();
  string output = process.StandardOutput.ReadToEnd();
  process.WaitForExit();

  return output;
}

I set the working directory to the script directory, so that sub scripts within the script also work.

Call it e.g. as Execute("usr/pwd@service", "c:\myscripts", "script.sql")

2) You have to finalize your SQL script with the statement EXIT;

Another reason that it's a good idea to write both declarations and definitions in header files is for readability. Suppose there's such a template function in Utility.h:

template <class T>
T min(T const& one, T const& theOther);

And in the Utility.cpp:

#include "Utility.h"
template <class T>
T min(T const& one, T const& other)
{
    return one < other ? one : other;
}

This requires every T class here to implement the less than operator (<). It will throw a compiler error when you compare two class instances that haven't implemented the "<".

Therefore if you separate the template declaration and definition, you won't be able to only read the header file to see the ins and outs of this template in order to use this API on your own classes, though the compiler will tell you in this case about which operator needs to be overridden.

The solution of Rob Stevenson-Legget is slow because he doesn't bind his values but he uses string.Format( ).

When you ask Oracle to execute a sql statement it starts with calculating the has value of this statement. After that it looks in a hash table whether it already knows this statement. If it already knows it statement it can retrieve its execution path from this hash table and execute this statement really fast because Oracle has executed this statement before. This is called the library cache and it doesn't work properly if you don't bind your sql statements.

For example don't do:

int n;

    for (n = 0; n < 100000; n ++)
    {
      mycommand.CommandText = String.Format("INSERT INTO [MyTable] ([MyId]) VALUES({0})", n + 1);
      mycommand.ExecuteNonQuery();
    }

but do:

      OracleParameter myparam = new OracleParameter();
      int n;

      mycommand.CommandText = "INSERT INTO [MyTable] ([MyId]) VALUES(?)";
      mycommand.Parameters.Add(myparam);

      for (n = 0; n < 100000; n ++)
      {
        myparam.Value = n + 1;
        mycommand.ExecuteNonQuery();
      }

Not using parameters can also cause sql injection.

I think the key is to copy the module to the standard paths.

Once that is done, modprobe only accepts the module name, so leave off the path and ".ko" extension.

BindingFlags.NonPublic will not return any results by itself. As it turns out, combining it with BindingFlags.Instance does the trick.

MethodInfo dynMethod = this.GetType().GetMethod("Draw_" + itemType, 
    BindingFlags.NonPublic | BindingFlags.Instance);

The article previously mentioned is good. http://forums.oracle.com/forums/thread.jspa?threadID=191750 (as far as it goes)

If this is not something that runs frequently (don't do it on your home page), you can turn off connection pooling.

There is one other "gotcha" that is not mentioned in the article. If the first thing you try to do with the connection is call a stored procedure, ODP will HANG!!!! You will not get back an error condition to manage, just a full bore HANG! The only way to fix it is to turn OFF connection pooling. Once we did that, all issues went away.

Pooling is good in some situations, but at the cost of increased complexity around the first statement of every connection.

If the error handling approach is so good, why don't they make it an option for ODP to handle it for us????

Here is a generic solution using a helper method. This can also handle an enum of any underlying type (byte, sbyte, uint, long, etc.)

Helper Method:

static IEnumerable<object> GetEnum<T>() {
    var type    = typeof(T);
    var names   = Enum.GetNames(type);
    var values  = Enum.GetValues(type);
    var pairs   =
        Enumerable.Range(0, names.Length)
        .Select(i => new {
                Name    = names.GetValue(i)
            ,   Value   = values.GetValue(i) })
        .OrderBy(pair => pair.Name);
    return pairs;
}//method

View Model:

public IEnumerable<object> EnumSearchTypes {
    get {
        return GetEnum<SearchTypes>();
    }
}//property

ComboBox:

<ComboBox
    SelectedValue       ="{Binding SearchType}"
    ItemsSource         ="{Binding EnumSearchTypes}"
    DisplayMemberPath   ="Name"
    SelectedValuePath   ="Value"
/>

It may seem weird, but I got started writing code by automating the tasks and data analysis at my former job. This was accomplished by recording then studying the code an Excel macro generated. Of course this approach assumes you can learn via VB.

If you are using the background image for the rounded corners then I would rather increase the padding style of the main div to give enough room for the rounded corners of the background image to be visible.

Try increasing the padding of the main div style:

#mainWrapperDivWithBGImage 
{   
    background: url("myImageWithRoundedCorners.jpg") no-repeat scroll 0 0 transparent;   
    height: 248px;   
    margin: 0;   
    overflow: hidden;   
    padding: 10px 10px;   
    width: 996px; 
}

P.S: I assume the rounded corners have a radius of 10px.

Here is a little one-liner that will let you know if your current branch incorporates or is out of data from a remote origin/master branch:

$ git fetch && git branch -r --merged | grep -q origin/master && echo Incorporates origin/master || echo Out of date from origin/master

I came across this question when working on a feature branch and frequently wanting to make sure that I have the most recent work incorporated into my own separate working branch.

To generalize this test I have added the following alias to my ~/.gitconfig:

[alias]
   current = !git branch -r --merged | grep -q $1 && echo Incorporates $1 || echo Out of date from $1 && :

Then I can call:

$ git current origin/master

to check if I am current.

Installing ASP.NET Core Runtime Hosting Bundle solved the issue for me. Source: 500.19 Internal Server Error (0x8007000d)

Wouldn't you just do:

srand(time(NULL));
int r = ( rand() % 6 ) + 1;

% is the modulus operator. Essentially it will just divide by 6 and return the remainder... from 0 - 5

As an extension to John Galt's answer -

For the following DataFrame,

   customer  item1   item2   item3
0         1  apple    milk  tomato
1         2  water  orange  potato
2         3  juice   mango   chips

If you want to get a list of dictionaries including the index values, you can do something like,

df.to_dict('index')

Which outputs a dictionary of dictionaries where keys of the parent dictionary are index values. In this particular case,

{0: {'customer': 1, 'item1': 'apple', 'item2': 'milk', 'item3': 'tomato'},
 1: {'customer': 2, 'item1': 'water', 'item2': 'orange', 'item3': 'potato'},
 2: {'customer': 3, 'item1': 'juice', 'item2': 'mango', 'item3': 'chips'}}

There is a solution to this if you really need a static access to the current context. In Startup.Configure(….)

app.Use(async (httpContext, next) =>
{
    CallContext.LogicalSetData("CurrentContextKey", httpContext);
    try
    {
        await next();
    }
    finally
    {
        CallContext.FreeNamedDataSlot("CurrentContextKey");
    }
});

And when you need it you can get it with :

HttpContext context = CallContext.LogicalGetData("CurrentContextKey") as HttpContext;

I hope that helps. Keep in mind this workaround is when you don’t have a choice. The best practice is to use de dependency injection.

This is caused by the limited support for the MP4 format within the video tag in Firefox. Support was not added until Firefox 21, and it is still limited to Windows 7 and above. The main reason for the limited support revolves around the royalty fee attached to the mp4 format.

Check out Supported media formats and Media formats supported by the audio and video elements directly from the Mozilla crew or the following blog post for more information:

http://pauljacobson.org/2010/01/22/2010122firefox-and-its-limited-html-5-video-support-html/

for me adding / worked at the end of location of folder. Hence, if you are copying into folder, don't forget to put /

How do I check a variable if it's null or undefined...

Is the variable null:

if (a === null)
// or
if (a == null) // but see note below

...but note the latter will also be true if a is undefined.

Is it undefined:

if (typeof a === "undefined")
// or
if (a === undefined)
// or
if (a == undefined) // but see note below

...but again, note that the last one is vague; it will also be true if a is null.

Now, despite the above, the usual way to check for those is to use the fact that they're falsey:

if (!a) {
    // `a` is falsey, which includes `undefined` and `null`
    // (and `""`, and `0`, and `NaN`, and [of course] `false`)
}

This is defined by ToBoolean in the spec.

...and what is the difference between the null and undefined?

They're both values usually used to indicate the absence of something. undefined is the more generic one, used as the default value of variables until they're assigned some other value, as the value of function arguments that weren't provided when the function was called, and as the value you get when you ask an object for a property it doesn't have. But it can also be explicitly used in all of those situations. (There's a difference between an object not having a property, and having the property with the value undefined; there's a difference between calling a function with the value undefined for an argument, and leaving that argument off entirely.)

null is slightly more specific than undefined: It's a blank object reference. JavaScript is loosely typed, of course, but not all of the things JavaScript interacts with are loosely typed. If an API like the DOM in browsers needs an object reference that's blank, we use null, not undefined. And similarly, the DOM's getElementById operation returns an object reference — either a valid one (if it found the DOM element), or null (if it didn't).

Interestingly (or not), they're their own types. Which is to say, null is the only value in the Null type, and undefined is the only value in the Undefined type.

What is the difference between "==" and "==="

The only difference between them is that == will do type coercion to try to get the values to match, and === won't. So for instance "1" == 1 is true, because "1" coerces to 1. But "1" === 1 is false, because the types don't match. ("1" !== 1 is true.) The first (real) step of === is "Are the types of the operands the same?" and if the answer is "no", the result is false. If the types are the same, it does exactly what == does.

Type coercion uses quite complex rules and can have surprising results (for instance, "" == 0 is true).

More in the spec:

• Abstract Equality Comparison (==, also called "loose" equality)
• Strict Equality Comparison (===)

To manually generate a Certificate, you need a Certificate Signing Request (CSR) file from your Mac. To create a CSR file, follow the instructions below to create one using Keychain Access.

Create a CSR file. In the Applications folder on your Mac, open the Utilities folder and launch Keychain Access.

Within the Keychain Access drop down menu, select Keychain Access > Certificate Assistant > Request a Certificate from a Certificate Authority.

In the Certificate Information window, enter the following information: In the User Email Address field, enter your email address. In the Common Name field, create a name for your private key (e.g., John Doe Dev Key). The CA Email Address field should be left empty. In the "Request is" group, select the "Saved to disk" option. Click Continue within Keychain Access to complete the CSR generating process.

You also have to delete the local branch:

git branch -d 6796

Another way is to prune all stale branches from your local repository. This will delete all local branches that already have been removed from the remote:

git remote prune origin --dry-run

I was also getting same issue as i tried using value 0 in non-based indexing,i.e starting with 1, not with zero

There is an easier way to find a min integer in array list:

int min = array.get(0);
        for (int i : array){
            min = min < i ? min : i;
        }

You could also consider using getting the indexes of last elements in each specified dimensions using this as following;

int x = ary.GetUpperBound(0);
int y = ary.GetUpperBound(1);

Keep in mind that this gets the value of index as 0-based.

Try just:

powershell.exe -noexit D:\Work\SQLExecutor.ps1 -gettedServerName "MY-PC"

shutil.copy and shutil.copy2 are copying files.

shutil.copytree copies a folder with all the files and all subfolders. shutil.copytree is using shutil.copy2 to copy the files.

So the analog to cp -r you are saying is the shutil.copytree because cp -r targets and copies a folder and its files/subfolders like shutil.copytree. Without the -r cp copies files like shutil.copy and shutil.copy2 do.

The same can be applied to a scenario where the data has been normalized, but now you want a table to have values found in a third table. The following will allow you to update a table with information from a third table that is liked by a second table.

UPDATE t1
LEFT JOIN
 t2
ON 
 t2.some_id = t1.some_id
LEFT JOIN
 t3 
ON
 t2.t3_id = t3.id
SET 
 t1.new_column = t3.column;

This would be useful in a case where you had users and groups, and you wanted a user to be able to add their own variation of the group name, so originally you would want to import the existing group names into the field where the user is going to be able to modify it.

cat files.txt | awk '{ total += $1} END {print total}'

You can use the awk to do the same it even skips the non integers

$ cat files.txt
1
2.3
3.4
ew
1

$ cat files.txt | awk '{ total += $1} END {print total}'
7.7

or you can use ls command and calculate human readable output

$ ls -l | awk '{ sum += $5} END  {hum[1024^3]="Gb"; hum[1024^2]="Mb"; hum[1024]="Kb"; for (x=1024^3; x>=1024; x/=1024) { if (sum>=x) { printf "%.2f %s\n",sum/x,hum[x]; break; } } if (sum<1024) print "1kb"; }'
15.69 Mb

$ ls -l *.txt | awk '{ sum += $5} END  {hum[1024^3]="Gb"; hum[1024^2]="Mb"; hum[1024]="Kb"; for (x=1024^3; x>=1024; x/=1024) { if (sum>=x) { printf "%.2f %s\n",sum/x,hum[x]; break; } } if (sum<1024) print "1kb"; }'
2.10 Mb

PyInstaller will create a single .exe file with no dependencies; use the --onefile option. It does this by packing all the needed shared libs into the executable, and unpacking them before it runs, just as you describe (EDIT: py2exe also has this feature, see minty's answer)

I use the version of PyInstaller from svn, since the latest release (1.3) is somewhat outdated. It's been working really well for an app which depends on PyQt, PyQwt, numpy, scipy and a few more.

Once you have removed your duplicate(s):

ALTER TABLE dbo.yourtablename
  ADD CONSTRAINT uq_yourtablename UNIQUE(column1, column2);

or

CREATE UNIQUE INDEX uq_yourtablename
  ON dbo.yourtablename(column1, column2);

Of course, it can often be better to check for this violation first, before just letting SQL Server try to insert the row and returning an exception (exceptions are expensive).

http://www.sqlperformance.com/2012/08/t-sql-queries/error-handling

http://www.mssqltips.com/sqlservertip/2632/checking-for-potential-constraint-violations-before-entering-sql-server-try-and-catch-logic/

If you want to prevent exceptions from bubbling up to the application, without making changes to the application, you can use an INSTEAD OF trigger:

CREATE TRIGGER dbo.BlockDuplicatesYourTable
 ON dbo.YourTable
 INSTEAD OF INSERT
AS
BEGIN
  SET NOCOUNT ON;

  IF NOT EXISTS (SELECT 1 FROM inserted AS i 
    INNER JOIN dbo.YourTable AS t
    ON i.column1 = t.column1
    AND i.column2 = t.column2
  )
  BEGIN
    INSERT dbo.YourTable(column1, column2, ...)
      SELECT column1, column2, ... FROM inserted;
  END
  ELSE
  BEGIN
    PRINT 'Did nothing.';
  END
END
GO

But if you don't tell the user they didn't perform the insert, they're going to wonder why the data isn't there and no exception was reported.

EDIT here is an example that does exactly what you're asking for, even using the same names as your question, and proves it. You should try it out before assuming the above ideas only treat one column or the other as opposed to the combination...

USE tempdb;
GO

CREATE TABLE dbo.Person
(
  ID INT IDENTITY(1,1) PRIMARY KEY,
  Name NVARCHAR(32),
  Active BIT,
  PersonNumber INT
);
GO

ALTER TABLE dbo.Person 
  ADD CONSTRAINT uq_Person UNIQUE(PersonNumber, Active);
GO

-- succeeds:
INSERT dbo.Person(Name, Active, PersonNumber)
  VALUES(N'foo', 1, 22);
GO

-- succeeds:
INSERT dbo.Person(Name, Active, PersonNumber)
  VALUES(N'foo', 0, 22);
GO

-- fails:
INSERT dbo.Person(Name, Active, PersonNumber)
  VALUES(N'foo', 1, 22);
GO

Data in the table after all of this:

ID   Name   Active PersonNumber
---- ------ ------ ------------
1    foo    1      22
2    foo    0      22

Error message on the last insert:

Msg 2627, Level 14, State 1, Line 3 Violation of UNIQUE KEY constraint 'uq_Person'. Cannot insert duplicate key in object 'dbo.Person'. The statement has been terminated.

timer.scheduleAtFixedRate( new Task(), 1000,3000); 

Definitively:

template<class T>
T ror(T x, unsigned int moves)
{
  return (x >> moves) | (x << sizeof(T)*8 - moves);
}

If you need this procedure for variable fieldnames instead of id this might be helpful:

DROP PROCEDURE IF EXISTS update_auto_increment;
DELIMITER //
CREATE PROCEDURE update_auto_increment (_table VARCHAR(128), _fieldname VARCHAR(128))
BEGIN
    DECLARE _max_stmt VARCHAR(1024);
    DECLARE _stmt VARCHAR(1024);    
    SET @inc := 0;

    SET @MAX_SQL := CONCAT('SELECT IFNULL(MAX(',_fieldname,'), 0) + 1 INTO @inc FROM ', _table);
    PREPARE _max_stmt FROM @MAX_SQL;
    EXECUTE _max_stmt;
    DEALLOCATE PREPARE _max_stmt;

    SET @SQL := CONCAT('ALTER TABLE ', _table, ' AUTO_INCREMENT =  ', @inc);
    PREPARE _stmt FROM @SQL;
    EXECUTE _stmt;
    DEALLOCATE PREPARE _stmt;
END //
DELIMITER ;

CALL update_auto_increment('your_table_name', 'autoincrement_fieldname');

If you go to references, click on the Entity Framework, view properties It will tell you the version number.

switch

 <androidx.appcompat.widget.SwitchCompat
     android:layout_centerVertical="true"
     android:layout_alignParentRight="true"
     app:track="@drawable/track"
     android:thumb="@drawable/thumb"
     android:id="@+id/switch1"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content" />

thumb.xml

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

    <item android:state_checked="false"
        android:drawable="@drawable/switch_thumb_false"/>

    <item android:state_checked="true"
        android:drawable="@drawable/switch_thumb_true"/>

</selector>

track.xml

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


    <item android:state_checked="false">
        <shape android:shape="rectangle">

            <size android:width="24dp" android:height="12dp" />
            <solid android:color="#EFE0BB" />
            <corners android:radius="6dp" />
        </shape>
    </item>

    <item android:state_checked="true">

        <shape android:shape="rectangle">

            <size android:width="24dp" android:height="12dp" />
            <solid android:color="@color/colorPrimary" />
            <corners android:radius="6dp" />
        </shape>
    </item>

</selector>

switch_thumb_true.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">

    <item>
        <shape android:shape="oval">
            <solid android:color="#EFE0BB" />
            <size
                android:width="10dp"
                android:height="10dp" />
            <stroke
                android:width="2dp"
                android:color="@color/colorPrimary" />
        </shape>
    </item>
</layer-list>

switch_thumb_false.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">

    <item >
        <shape android:shape="oval">
            <solid android:color="@color/colorPrimary"/>
            <size android:height="12dp"
                android:width="12dp"/>
            <stroke android:color="#EFE0BB"
                android:width="2dp"/>
        </shape>
    </item>

</layer-list>

I would suggest to use this extension method to chunk the source list to the sub-lists by specified chunk size:

/// <summary>
/// Helper methods for the lists.
/// </summary>
public static class ListExtensions
{
    public static List<List<T>> ChunkBy<T>(this List<T> source, int chunkSize) 
    {
        return source
            .Select((x, i) => new { Index = i, Value = x })
            .GroupBy(x => x.Index / chunkSize)
            .Select(x => x.Select(v => v.Value).ToList())
            .ToList();
    }
}

For example, if you chunk the list of 18 items by 5 items per chunk, it gives you the list of 4 sub-lists with the following items inside: 5-5-5-3.

Check if your project files are read-only. Remove the read-only property by right clicking on the project folder and select properties. In the properties screen remove the read-only checkbox. I came across the same problem, and this solved it for me.

Add one line of code after setContentView() in onCreate()

public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_flag);
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}

@wdavo is correct. The same is also true for functions.

If you override a base function, like Update, then in your subclass you need:

new void Update()
{
  //do stufff
}

Without the new at the start of the function decleration you will get the warning flag.

In Python instead of language enforcing something, people use naming conventions e.g __method for private methods and using _method for protected methods.

So in same manner you can simply declare the constant as all caps e.g.

MY_CONSTANT = "one"

If you want that this constant never changes, you can hook into attribute access and do tricks, but a simpler approach is to declare a function

def MY_CONSTANT():
    return "one"

Only problem is everywhere you will have to do MY_CONSTANT(), but again MY_CONSTANT = "one" is the correct way in python(usually).

You can also use namedtuple to create constants:

>>> from collections import namedtuple
>>> Constants = namedtuple('Constants', ['pi', 'e'])
>>> constants = Constants(3.14, 2.718)
>>> constants.pi
3.14
>>> constants.pi = 3
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: can't set attribute

You should use the flex or flex-basis property rather than width. Read more on MDN.

.flexbox .red {
  flex: 0 0 25em;
}

The flex CSS property is a shorthand property specifying the ability of a flex item to alter its dimensions to fill available space. It contains:

flex-grow: 0;     /* do not grow   - initial value: 0 */
flex-shrink: 0;   /* do not shrink - initial value: 1 */
flex-basis: 25em; /* width/height  - initial value: auto */

A simple demo shows how to set the first column to 50px fixed width.

.flexbox {_x000D_
  display: flex;_x000D_
}_x000D_
.red {_x000D_
  background: red;_x000D_
  flex: 0 0 50px;_x000D_
}_x000D_
.green {_x000D_
  background: green;_x000D_
  flex: 1;_x000D_
}_x000D_
.blue {_x000D_
  background: blue;_x000D_
  flex: 1;_x000D_
}

<div class="flexbox">_x000D_
  <div class="red">1</div>_x000D_
  <div class="green">2</div>_x000D_
  <div class="blue">3</div>_x000D_
</div>

See the updated codepen based on your code.

exit(); can be use to go for the next validation.

Here is code to render arbitrary HTML into a canvas:

function render_html_to_canvas(html, ctx, x, y, width, height) {
    var xml = html_to_xml(html);
    xml = xml.replace(/\#/g, '%23');
    var data = "data:image/svg+xml;charset=utf-8,"+'<svg xmlns="http://www.w3.org/2000/svg" width="'+width+'" height="'+height+'">' +
                        '<foreignObject width="100%" height="100%">' +
                        xml+
                        '</foreignObject>' +
                        '</svg>';

    var img = new Image();
    img.onload = function () {
        ctx.drawImage(img, x, y);
    }
    img.src = data;
}

function html_to_xml(html) {
    var doc = document.implementation.createHTMLDocument('');
    doc.write(html);

    // You must manually set the xmlns if you intend to immediately serialize     
    // the HTML document to a string as opposed to appending it to a
    // <foreignObject> in the DOM
    doc.documentElement.setAttribute('xmlns', doc.documentElement.namespaceURI);

    // Get well-formed markup
    html = (new XMLSerializer).serializeToString(doc.body);
    return html;
}

example:

const ctx = document.querySelector('canvas').getContext('2d');
const html = `
<p>this
<p>is <span style="color:red; font-weight: bold;">not</span>
<p><i>xml</i>!
<p><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAABWElEQVQ4jZ2Tu07DQBBFz9jjvEAQqAlQ0CHxERQ0/AItBV9Ew8dQUNBQIho6qCFE4Nhex4u85OHdWAKxzfWsx0d3HpazdGITA4kROjl0ckFrnYJmQlJrKsQZxFOIMyEqIMpADGhSZpikB1hAGsovdxABGuepC/4L0U7xRTG/riG3J8fuvdifPKnmasXp5c2TB1HNPl24gNTnpeqsgmj1eFgayoHvRDWbLBOKJbn9WLGYflCCpmM/2a4Au6/PTjdH+z9lCJQ9vyeq0w/ve2kA3vaOnI6k4Pz+0Y24yP3Gapy+Bw6qdfsCRZfWSWgclCCVXTZu5LZFXKJJ2sepW2KYNCENB3U5pw93zLoDjNK6E7rTFcgbkGYJtiLckxCiw4W1OURsxUE5BokQiQj3JIToVtKwlhsurq+YDYbMBjuU/W3KtT3xIbrpAD7E60lwQohuaMtP8ldI0uMbGfC1r1zyWPUAAAAASUVORK5CYII=">`;
render_html_to_canvas(html, ctx, 0, 0, 300, 150);


function render_html_to_canvas(html, ctx, x, y, width, height) {
  var data = "data:image/svg+xml;charset=utf-8," + '<svg xmlns="http://www.w3.org/2000/svg" width="' + width + '" height="' + height + '">' +
    '<foreignObject width="100%" height="100%">' +
    html_to_xml(html) +
    '</foreignObject>' +
    '</svg>';

  var img = new Image();
  img.onload = function() {
    ctx.drawImage(img, x, y);
  }
  img.src = data;
}

function html_to_xml(html) {
  var doc = document.implementation.createHTMLDocument('');
  doc.write(html);

  // You must manually set the xmlns if you intend to immediately serialize     
  // the HTML document to a string as opposed to appending it to a
  // <foreignObject> in the DOM
  doc.documentElement.setAttribute('xmlns', doc.documentElement.namespaceURI);

  // Get well-formed markup
  html = (new XMLSerializer).serializeToString(doc.body);
  return html;
}

<canvas></canvas>

You can use BinaryReader to read each of the bytes, then use BitConverter.ToString(byte[]) to find out how each is represented in binary.

You can then use this representation and write it to a file.

If you use Matlab, the function ispolycw returns true if the polygon vertices are in clockwise order.

Super easy (you may have to focus on the input element)

inputEl = getElementById('inputId');
var temp = inputEl.value;
inputEl.value = '';
inputEl.value = temp;

the following worked for me

a_tag = soup.find_all("div",class_='full tabpublist')

goals:

1. use https connections
2. verify SSL chains
3. do not deal with cacerts
4. add certificate in runtime
5. do not lose certificates from cacerts

How to do it:

1. define own keystore
2. put certificate into keystore
3. redefine SSL default context with our custom class
4. ???
5. profit

My Keystore wrapper file:

public class CertificateManager {

    private final static Logger logger = Logger.getLogger(CertificateManager.class);

    private String keyStoreLocation;
    private String keyStorePassword;
    private X509TrustManager myTrustManager;
    private static KeyStore myTrustStore;

    public CertificateManager(String keyStoreLocation, String keyStorePassword) throws Exception {
        this.keyStoreLocation = keyStoreLocation;
        this.keyStorePassword = keyStorePassword;
        myTrustStore = createKeyStore(keyStoreLocation, keyStorePassword);
    }

    public void addCustomCertificate(String certFileName, String certificateAlias)
            throws Exception {
        TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
        tmf.init((KeyStore) null);
        Certificate certificate = myTrustStore.getCertificate(certificateAlias);
        if (certificate == null) {
            logger.info("Certificate not exists");
            addCertificate(certFileName, certificateAlias);
        } else {
            logger.info("Certificate exists");
        }
        tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
        tmf.init(myTrustStore);
        for (TrustManager tm : tmf.getTrustManagers()) {
            if (tm instanceof X509TrustManager) {
                setMytrustManager((X509TrustManager) tm);
                logger.info("Trust manager found");
                break;
            }
        }
    }

    private InputStream fullStream(String fname) throws IOException {
        ClassLoader classLoader = getClass().getClassLoader();
        InputStream resource = classLoader.getResourceAsStream(fname);
        try {
            if (resource != null) {
                DataInputStream dis = new DataInputStream(resource);
                byte[] bytes = new byte[dis.available()];
                dis.readFully(bytes);
                return new ByteArrayInputStream(bytes);
            } else {
                logger.info("resource not found");
            }
        } catch (Exception e) {
            logger.error("exception in certificate fetching as resource", e);
        }
        return null;
    }

    public static KeyStore createKeyStore(String keystore, String pass) throws Exception {
        try {
            InputStream in = CertificateManager.class.getClass().getResourceAsStream(keystore);
            KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
            keyStore.load(in, pass.toCharArray());
            logger.info("Keystore was created from resource file");
            return keyStore;
        } catch (Exception e) {
            logger.info("Fail to create keystore from resource file");
        }

        File file = new File(keystore);
        KeyStore keyStore = KeyStore.getInstance("JKS");
        if (file.exists()) {
            keyStore.load(new FileInputStream(file), pass.toCharArray());
            logger.info("Default keystore loaded");
        } else {
            keyStore.load(null, null);
            keyStore.store(new FileOutputStream(file), pass.toCharArray());
            logger.info("New keystore created");
        }
        return keyStore;
    }

    private void addCertificate(String certFileName, String certificateAlias) throws CertificateException,
            IOException, KeyStoreException, NoSuchAlgorithmException {
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        InputStream certStream = fullStream(certFileName);
        Certificate certs = cf.generateCertificate(certStream);
        myTrustStore.setCertificateEntry(certificateAlias, certs);
        FileOutputStream out = new FileOutputStream(getKeyStoreLocation());
        myTrustStore.store(out, getKeyStorePassword().toCharArray());
        out.close();
        logger.info("Certificate pushed");
    }

    public String getKeyStoreLocation() {
        return keyStoreLocation;
    }

    public String getKeyStorePassword() {
        return keyStorePassword;
    }
    public X509TrustManager getMytrustManager() {
        return myTrustManager;
    }
    public void setMytrustManager(X509TrustManager myTrustManager) {
        this.myTrustManager = myTrustManager;
    }
}

This class will create keystore if necessary, and will be able to manage certificates inside of it. Now class for SSL context:

public class CustomTrustManager implements X509TrustManager {

    private final static Logger logger = Logger.getLogger(CertificateManager.class);

    private static SSLSocketFactory socketFactory;
    private static CustomTrustManager instance = new CustomTrustManager();
    private static List<CertificateManager> register = new ArrayList<>();

    public static CustomTrustManager getInstance() {
        return instance;
    }

    private X509TrustManager defaultTm;

    public void register(CertificateManager certificateManager) {
        for(CertificateManager manager : register) {
            if(manager == certificateManager) {
                logger.info("Certificate manager already registered");
                return;
            }
        }
        register.add(certificateManager);
        logger.info("New Certificate manager registered");
    }

    private CustomTrustManager() {
        try {
            String algorithm = TrustManagerFactory.getDefaultAlgorithm();
            TrustManagerFactory tmf = TrustManagerFactory.getInstance(algorithm);

            tmf.init((KeyStore) null);
            boolean found = false;
            for (TrustManager tm : tmf.getTrustManagers()) {
                if (tm instanceof X509TrustManager) {
                    defaultTm = (X509TrustManager) tm;
                    found = true;
                    break;
                }
            }
            if(found) {
                logger.info("Default trust manager found");
            } else {
                logger.warn("Default trust manager was not found");
            }

            SSLContext sslContext = SSLContext.getInstance("TLS");
            sslContext.init(null, new TrustManager[]{this}, null);
            SSLContext.setDefault(sslContext);
            socketFactory = sslContext.getSocketFactory();
            HttpsURLConnection.setDefaultSSLSocketFactory(socketFactory);


            logger.info("Custom trust manager was set");
        } catch (NoSuchAlgorithmException | KeyManagementException | KeyStoreException e) {
            logger.warn("Custom trust manager can't be set");
            e.printStackTrace();
        }
    }

    @Override
    public X509Certificate[] getAcceptedIssuers() {
        List<X509Certificate> out = new ArrayList<>();
        if (defaultTm != null) {
            out.addAll(Arrays.asList(defaultTm.getAcceptedIssuers()));
        }
        int defaultCount = out.size();
        logger.info("Default trust manager contain " + defaultCount + " certficates");
        for(CertificateManager manager : register) {
            X509TrustManager customTrustManager = manager.getMytrustManager();
            X509Certificate[] issuers = customTrustManager.getAcceptedIssuers();
            out.addAll(Arrays.asList(issuers));
        }
        logger.info("Custom trust managers contain " + (out.size() - defaultCount) + " certficates");
        X509Certificate[] arrayOut = new X509Certificate[out.size()];
        return out.toArray(arrayOut);
    }

    @Override
    public void checkServerTrusted(X509Certificate[] chain,
                                   String authType) throws CertificateException {
        for(CertificateManager certificateManager : register) {
            X509TrustManager customTrustManager = certificateManager.getMytrustManager();
            try {
                customTrustManager.checkServerTrusted(chain, authType);
                logger.info("Certificate chain (server) was aproved by custom trust manager");
                return;
            } catch (Exception e) {
            }
        }
        if (defaultTm != null) {
            defaultTm.checkServerTrusted(chain, authType);
            logger.info("Certificate chain (server) was aproved by default trust manager");
        } else {
            logger.info("Certificate chain (server) was rejected");
            throw new CertificateException("Can't check server trusted certificate.");
        }
    }

    @Override
    public void checkClientTrusted(X509Certificate[] chain,
                                   String authType) throws CertificateException {
        try {
            if (defaultTm != null) {
                defaultTm.checkClientTrusted(chain, authType);
                logger.info("Certificate chain (client) was aproved by default trust manager");
            } else {
                throw new NullPointerException();
            }
        } catch (Exception e) {
            for(CertificateManager certificateManager : register) {
                X509TrustManager customTrustManager = certificateManager.getMytrustManager();
                try {
                    customTrustManager.checkClientTrusted(chain, authType);
                    logger.info("Certificate chain (client) was aproved by custom trust manager");
                    return;
                } catch (Exception e1) {
                }
            }
            logger.info("Certificate chain (client) was rejected");
            throw new CertificateException("Can't check client trusted certificate.");
        }
    }

    public SSLSocketFactory getSocketFactory() {
        return socketFactory;
    }
}

This class made as singleton, because only one defaultSSL context allowed. So, now usage:

            CertificateManager certificateManager = new CertificateManager("C:\\myapplication\\mykeystore.jks", "changeit");
            String certificatePath = "C:\\myapplication\\public_key_for_your_ssl_service.crt";
            try {
                certificateManager.addCustomCertificate(certificatePath, "alias_for_public_key_for_your_ssl_service");
            } catch (Exception e) {
                log.error("Can't add custom certificate");
                e.printStackTrace();
            }
            CustomTrustManager.getInstance().register(certificateManager);

Possibly, it will not work with this settings, because I keep certificate file inside of resource folder, so my path is not absolute. But generally, it work perfectly.

In some cases of which I can't remember why but $('#selectlist').val() won't always return the correct item value, so I use $('#selectlist option:selected').val() instead.

Just type the following commands from console.

cd /your_project
heroku restart

OMG I Got A Quick File Move Command form CMD

1)Command will move All Files and Sub Folders into another location in 1 second .

check command

C:\user>move "your source path " "your destination path" 

Hint : For move all Files and Sub folders

C:\user>move "f:\wamp\www" "f:\wapm_3.2\www\old Projects"

check image

you can see that it's before i try some other code that was not working due to more than 1 files and folder was there. when i try to execute code that is under line by red color then all folder move in 1 second.

now check this image. here Total 6.7GB data moved in 1 second... you can check date of post and move as well as Folder name.

i will soon make a windows app that will do same..

Use This chunk of code..

.card::-webkit-scrollbar {
  display: none;
}

If you have run "netstat -a -b -n" (from an elevated command prompt) and you don't see "sqlservr.exe" at all then either your SQL Server service is not running or its TCP/IP network library is disabled.

Run SQL Server Configuration Manager (Start | All Programs | Microsoft SQL Server 2008 | Configuration Tools).

Navigate to SQL Server Services. In the right-hand pane look for SQL Server (). Is it stopped? If so, start it.

Navigate to SQL Server Network Configuration (or SQL Server Network Configuration (32-bit) as appropriate) then Protocols for . In the right-hand pane look for "TCP/IP". Is it disabled? If so, enable it, then restart the SQL Server service.

Note that he Instance ID will be MSSQLSERVER for the default instance.

Please also note that you don't have to enable the TCP/IP network library to connect a client to the service. Clients can also connect through the Shared Memory network library (if the client is on the same machine) or the Named Pipes network library.

Here is a vanilla Java answer:

import java.net.http.HttpClient;
import java.net.http.HttpResponse;
import java.net.http.HttpRequest;
import java.net.http.HttpRequest.BodyPublishers;

...
HttpClient client = HttpClient.newHttpClient();
HttpRequest request = HttpRequest.newBuilder()
  .uri(targetUrl)
  .header("Content-Type", "application/json")
  .POST(BodyPublishers.ofString(requestBody))
  .build();
HttpResponse response = client.send(request, HttpResponse.BodyHandlers.ofString());
String responseString = (String) response.body();

Add below code to following files.

app.component.ts

<input type="text" [(ngModel)]="fname" >
{{fname}}
export class appcomponent {
fname:any;
}

app.module.ts

import {FormsModule} from '@angular/forms';
@NgModule({
imports: [ BrowserModule,FormsModule ],
declarations: [ AppComponent],
bootstrap:    [ AppComponent ]
})

Hope this helps

where row.name.StartsWith(q, true, System.Globalization.CultureInfo.CurrentCulture)

Throwable.printStackTrace() writes the stack trace to System.err PrintStream. The System.err stream and the underlying standard "error" output stream of the JVM process can be redirected by

• invoking System.setErr() which changes the destination pointed to by System.err.
• or by redirecting the process' error output stream. The error output stream may be redirected to a file/device
  • whose contents may be ignored by personnel,
  • the file/device may not be capable of log rotation, inferring that a process restart is required to close the open file/device handle, before archiving the existing contents of the file/device.
  • or the file/device actually discards all data written to it, as is the case of /dev/null.

Inferring from the above, invoking Throwable.printStackTrace() constitutes valid (not good/great) exception handling behavior, only

• if you do not have System.err being reassigned throughout the duration of the application's lifetime,
• and if you do not require log rotation while the application is running,
• and if accepted/designed logging practice of the application is to write to System.err (and the JVM's standard error output stream).

In most cases, the above conditions are not satisfied. One may not be aware of other code running in the JVM, and one cannot predict the size of the log file or the runtime duration of the process, and a well designed logging practice would revolve around writing "machine-parseable" log files (a preferable but optional feature in a logger) in a known destination, to aid in support.

Finally, one ought to remember that the output of Throwable.printStackTrace() would definitely get interleaved with other content written to System.err (and possibly even System.out if both are redirected to the same file/device). This is an annoyance (for single-threaded apps) that one must deal with, for the data around exceptions is not easily parseable in such an event. Worse, it is highly likely that a multi-threaded application will produce very confusing logs as Throwable.printStackTrace() is not thread-safe.

There is no synchronization mechanism to synchronize the writing of the stack trace to System.err when multiple threads invoke Throwable.printStackTrace() at the same time. Resolving this actually requires your code to synchronize on the monitor associated with System.err (and also System.out, if the destination file/device is the same), and that is rather heavy price to pay for log file sanity. To take an example, the ConsoleHandler and StreamHandler classes are responsible for appending log records to console, in the logging facility provided by java.util.logging; the actual operation of publishing log records is synchronized - every thread that attempts to publish a log record must also acquire the lock on the monitor associated with the StreamHandler instance. If you wish to have the same guarantee of having non-interleaved log records using System.out/System.err, you must ensure the same - the messages are published to these streams in a serializable manner.

Considering all of the above, and the very restricted scenarios in which Throwable.printStackTrace() is actually useful, it often turns out that invoking it is a bad practice.

Extending the argument in the one of the previous paragraphs, it is also a poor choice to use Throwable.printStackTrace in conjunction with a logger that writes to the console. This is in part, due to the reason that the logger would synchronize on a different monitor, while your application would (possibly, if you don't want interleaved log records) synchronize on a different monitor. The argument also holds good when you use two different loggers that write to the same destination, in your application.

Try this, to make sure you configured CORS correctly:

[EnableCors(origins: "*", headers: "*", methods: "*")]

Still not working? Check HTTP headers presence.

You were almost there:

You just need to append the li to ul and voila!

So just add

ul.appendChild(li);

to the end of your function so the end function will be like this:

function function1() {
  var ul = document.getElementById("list");
  var li = document.createElement("li");
  li.appendChild(document.createTextNode("Element 4"));
  ul.appendChild(li);
}

Guava has a very powerful searching capabilities when it comes to such type of problems. For example, if your area searching an object based on one of it properties you may consider:

Iterables.tryFind(listOfCats, new Predicate<Cat>(){
    @Override
    boolean apply(@Nullable Cat input) {
        return "tom".equalsIgnoreCase(input.name());
    }
}).or(new Cat("Tom"));

in case it's possible that the Tom cat is not in the listOfCats, it will be returned, thus allowing you to avoid NPE.

This one $("#yourDiv").load(" #yourDiv > *"); is the best if you are planning to just reload a <div>

Make sure to use an id and not a class. Also, remember to paste <script src="https://code.jquery.com/jquery-3.5.1.js"></script> in the <head> section of the html file, if you haven't already. In opposite case it won't work.

Quick Overview: index and find

Next to the find method there is as well index. find and index both yield the same result: returning the position of the first occurrence, but if nothing is found index will raise a ValueError whereas find returns -1. Speedwise, both have the same benchmark results.

s.find(t)    #returns: -1, or index where t starts in s
s.index(t)   #returns: Same as find, but raises ValueError if t is not in s

Additional knowledge: rfind and rindex:

In general, find and index return the smallest index where the passed-in string starts, and rfind and rindex return the largest index where it starts Most of the string searching algorithms search from left to right, so functions starting with r indicate that the search happens from right to left.

So in case that the likelihood of the element you are searching is close to the end than to the start of the list, rfind or rindex would be faster.

s.rfind(t)   #returns: Same as find, but searched right to left
s.rindex(t)  #returns: Same as index, but searches right to left

Source: Python: Visual QuickStart Guide, Toby Donaldson

Default usage

el.addEventListener('input', function () {
    fn();
});

But, if you want to fire event when you change inputs value manualy via JS you should use custom event(any name, like 'myEvent' \ 'ev' etc.) IF you need to listen forms 'change' or 'input' event and you change inputs value via JS - you can name your custom event 'change' \ 'input' and it will work too.

var event = new Event('input');
el.addEventListener('input', function () { 
  fn();
});
form.addEventListener('input', function () { 
  anotherFn();
});


el.value = 'something';
el.dispatchEvent(input);

https://developer.mozilla.org/en-US/docs/Web/Guide/Events/Creating_and_triggering_events

If you're using Django you can use this. Yes i'm aware OP did not ask for django, but i ran across this question looking for a Django solution, didn't find one, and put it here for the next boy/gal that looks for it.

# It's available for v1.7+
# https://github.com/django/django/blob/stable/1.7.x/django/utils/module_loading.py
from django.utils.module_loading import import_string

Klass = import_string('path.to.module.Klass')
func = import_string('path.to.module.func')
var = import_string('path.to.module.var')

Keep in mind, if you want to import something that doesn't have a ., like re or argparse use:

re = __import__('re')

C++11 standard on == for std::vector

Others have mentioned that operator== does compare vector contents and works, but here is a quote from the C++11 N3337 standard draft which I believe implies that.

We first look at Chapter 23.2.1 "General container requirements", which documents things that must be valid for all containers, including therefore std::vector.

That section Table 96 "Container requirements" which contains an entry:

Expression   Operational semantics
===========  ======================
a == b       distance(a.begin(), a.end()) == distance(b.begin(), b.end()) &&
             equal(a.begin(), a.end(), b.begin())

The distance part of the semantics means that the size of both containers are the same, but stated in a generalized iterator friendly way for non random access addressable containers. distance() is defined at 24.4.4 "Iterator operations".

Then the key question is what does equal() mean. At the end of the table we see:

Notes: the algorithm equal() is defined in Clause 25.

and in section 25.2.11 "Equal" we find its definition:

template<class InputIterator1, class InputIterator2>
bool equal(InputIterator1 first1, InputIterator1 last1,
           InputIterator2 first2);

template<class InputIterator1, class InputIterator2,
class BinaryPredicate>
bool equal(InputIterator1 first1, InputIterator1 last1,
           InputIterator2 first2, BinaryPredicate pred);

1 Returns: true if for every iterator i in the range [first1,last1) the following corresponding conditions hold: *i == *(first2 + (i - first1)), pred(*i, *(first2 + (i - first1))) != false. Otherwise, returns false.

In our case, we care about the overloaded version without BinaryPredicate version, which corresponds to the first pseudo code definition *i == *(first2 + (i - first1)), which we see is just an iterator-friendly definition of "all iterated items are the same".

Similar questions for other containers:

• how to compare two std::set?

you can achieve it using SimpleDateFormat, which is meant to format date and times.

Calendar cal = Calendar.getInstance();
System.out.println(new SimpleDateFormat("MMM").format(cal.getTime()));

If you wish to convert a Pandas DataFrame to a table (list of lists) and include the header column this should work:

import pandas as pd
def dfToTable(df:pd.DataFrame) -> list:
    return [list(df.columns)] + df.values.tolist()

Usage (in REPL):

>>> df = pd.DataFrame(
             [["r1c1","r1c2","r1c3"],["r2c1","r2c2","r3c3"]]
             , columns=["c1", "c2", "c3"])
>>> df
     c1    c2    c3
0  r1c1  r1c2  r1c3
1  r2c1  r2c2  r3c3
>>> dfToTable(df)
[['c1', 'c2', 'c3'], ['r1c1', 'r1c2', 'r1c3'], ['r2c1', 'r2c2', 'r3c3']]

Another tricky solution is to name elements of list and attach it:

list_name = list(
    head(iris),
    head(swiss),
    head(airquality)
    )

names(list_name) <- paste("orca", seq_along(list_name), sep="")
attach(list_name)

orca1
#   Sepal.Length Sepal.Width Petal.Length Petal.Width Species
# 1          5.1         3.5          1.4         0.2  setosa
# 2          4.9         3.0          1.4         0.2  setosa
# 3          4.7         3.2          1.3         0.2  setosa
# 4          4.6         3.1          1.5         0.2  setosa
# 5          5.0         3.6          1.4         0.2  setosa
# 6          5.4         3.9          1.7         0.4  setosa

This is the error line:

if (called_from.equalsIgnoreCase("add")) {  --->38th error line

This means that called_from is null. Simple check if it is null above:

String called_from = getIntent().getStringExtra("called");

if(called_from == null) {
    called_from = "empty string";
}
if (called_from.equalsIgnoreCase("add")) {
    // do whatever
} else {
    // do whatever
}

That way, if called_from is null, it'll execute the else part of your if statement.

Create a file ~/.curlrc with the following content

cacert=/etc/ssl/certs/ca-certificates.crt

as follows

echo "cacert=/etc/ssl/certs/ca-certificates.crt" >> ~/.curlrc

Try this:

var count =0;

$('input[name="radioGroup"]').each(function(){
  if (this.checked)
    {
      count++;
    }
});

If any of radio button checked than you will get 1

You can't modify the collection, not even the values. You could save these cases and remove them later. It would end up like this:

Dictionary<string, int> colStates = new Dictionary<string, int>();
// ...
// Some code to populate colStates dictionary
// ...

int OtherCount = 0;
List<string> notRelevantKeys = new List<string>();

foreach (string key in colStates.Keys)
{

    double Percent = colStates[key] / colStates.Count;

    if (Percent < 0.05)
    {
        OtherCount += colStates[key];
        notRelevantKeys.Add(key);
    }
}

foreach (string key in notRelevantKeys)
{
    colStates[key] = 0;
}

colStates.Add("Other", OtherCount);

You should do:

try:
    value_index = my_list.index(value)
except:
    value_index = -1;

Not sure if there is universally accepted standard but my own preferences are;

• constructors first
• static methods next, if there is a main method, always before other static methods
• non static methods next, usually in order of the significance of the method followed by any methods that it calls. This means that public methods that call other class methods appear towards the top and private methods that call no other methods usually end up towards the bottom
• standard methods like toString, equals and hashcode next
• getters and setters have a special place reserved right at the bottom of the class

You can use the below sample, also you dont need the else clause to print nothing!

 <?php if ( ($cart->count_product) > 0) { ?>
           <div class="my_class">
               <?php print $cart->count_product; ?> 
           </div>
 <?php } ?>

Take a closer look at the ?axis documentation. If you look at the description of the labels argument, you'll see that it is:

"a logical value specifying whether (numerical) annotations are 
to be made at the tickmarks,"

So, just change it to true, and you'll get your tick labels.

x <- seq(10,200,10)
y <- runif(x)
plot(x,y,xaxt='n')
axis(side = 1, at = x,labels = T)
# Since TRUE is the default for labels, you can just use axis(side=1,at=x)

Be careful that if you don't stretch your window width, then R might not be able to write all your labels in. Play with the window width and you'll see what I mean.

It's too bad that you had such trouble finding documentation! What were your search terms? Try typing r axis into Google, and the first link you will get is that Quick R page that I mentioned earlier. Scroll down to "Axes", and you'll get a very nice little guide on how to do it. You should probably check there first for any plotting questions, it will be faster than waiting for a SO reply.

Open folder path of Android application, open src folder then Add your image in /res/drawable folder

I fixed in the below way with typescript

1. Define and initialize firest

pageNumbers: number[] = [];

2. than populate it

   for (let i = 1; i < 201; i++) {
       this.pageNumbers.push(i);
   }
   

A functional approach:

a = [1,"A", 34, -123, "Hello", 12]
b = [0, 2, 5]

from operator import itemgetter

print(list(itemgetter(*b)(a)))
[1, 34, 12]

ES6 version:

["Foo", "bar"].sort((a, b) => a.localeCompare(b, 'en', { sensitivity: 'base' }))

Source: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/localeCompare

Arrays are special objects in java, they have a simple attribute named length which is final.

There is no "class definition" of an array (you can't find it in any .class file), they're a part of the language itself.

10.7. Array Members

The members of an array type are all of the following:

• The public final field length, which contains the number of components of the array. length may be positive or zero.

• The public method clone, which overrides the method of the same name in class Object and throws no checked exceptions. The return type of the clone method of an array type T[] is T[].

  A clone of a multidimensional array is shallow, which is to say that it creates only a single new array. Subarrays are shared.

• All the members inherited from class Object; the only method of Object that is not inherited is its clone method.

Resources:

• JLS - Arrays

I ran into an issue very similar to the original question that took me a little while to resolve.

Just incase anyone else is working on an MVC application and finds their way into this thread, make sure that you have a wildcard mapping to the appropriate .Net aspnet_isapi.dll defined. As soon as I did this, my app_offline.htm started behaving as expected.

IIS 6 Configuration Steps

On IIS Application Properties, select virtual Directory tab.

Under Application Settings, click the Configuration button.

Under Wildcard application maps, click the Insert button.

Enter C:\WINDOWS\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll, click OK.

There is a comprehensive list of tools on the PostgreSQL Wiki:

https://wiki.postgresql.org/wiki/PostgreSQL_Clients

And of course PostgreSQL itself comes with pgAdmin, a GUI tool for accessing Postgres databases.

67

Reserved.objects.filter(client=client_id).order_by('-check_in')

'-' is indicates Descending order and for Ascending order just give class attribute

Switch to text-mode

M-x text-mode

Highlight block to indent

Indent

C+M \

Switch back to whatever mode..

If you install the application on your device via adb install you should look for the reinstall option which should be -r. So if you do adb install -r you should be able to install without uninstalling before.

The proper way to do it is by find the sine of the angle using the cross product, and the cosine of the angle using the dot product and combine the two with the Atan2() function.

In C# this is

public struct Vector2
{
    public double X, Y;

    /// <summary>
    /// Returns the angle between two vectos
    /// </summary>
    public static double GetAngle(Vector2 A, Vector2 B)
    {
        // |A·B| = |A| |B| COS(?)
        // |A×B| = |A| |B| SIN(?)

        return Math.Atan2(Cross(A,B), Dot(A,B));
    }

    public double Magnitude { get { return Math.Sqrt(Dot(this,this)); } }

    public static double Dot(Vector2 A, Vector2 B)
    {
        return A.X*B.X+A.Y*B.Y;
    }
    public static double Cross(Vector2 A, Vector2 B)
    {
        return A.X*B.Y-A.Y*B.X;
    }
}
class Program
{
    static void Main(string[] args)
    {
        Vector2 A=new Vector2() { X=5.45, Y=1.12};
        Vector2 B=new Vector2() { X=-3.86, Y=4.32 };

        double angle=Vector2.GetAngle(A, B) * 180/Math.PI;
        // angle = 120.16850967865749
    }
}

See test case above in GeoGebra.

Normally, there's no need to set fields to null. I'd always recommend disposing unmanaged resources however.

From experience I'd also advise you to do the following:

• Unsubscribe from events if you no longer need them.
• Set any field holding a delegate or an expression to null if it's no longer needed.

I've come across some very hard to find issues that were the direct result of not following the advice above.

A good place to do this is in Dispose(), but sooner is usually better.

In general, if a reference exists to an object the garbage collector (GC) may take a couple of generations longer to figure out that an object is no longer in use. All the while the object remains in memory.

That may not be a problem until you find that your app is using a lot more memory than you'd expect. When that happens, hook up a memory profiler to see what objects are not being cleaned up. Setting fields referencing other objects to null and clearing collections on disposal can really help the GC figure out what objects it can remove from memory. The GC will reclaim the used memory faster making your app a lot less memory hungry and faster.

There is indeed a Groovier Way.

if(members){
    //Some work
}

does everything if members is a collection. Null check as well as empty check (Empty collections are coerced to false). Hail Groovy Truth. :)

I prefer echo. using pure bash:

cat file | while read line; do echo ${line}$string; done

The error message suggests this is not a supported feature in the query language. But you can save a DataFrame in any format as usual through the RDD interface (df.rdd.saveAsTextFile). Or you can check out https://github.com/databricks/spark-csv.

You have to modify the php.ini files in your xampp folder. Three files in three different places need to be changed.

Follow the following steps to enable curl library with XAMPP in Windows:

Step 1:

Browse and open the following 3 files

C:\Program Files\xampp\apache\bin\php.ini
C:\Program Files\xampp\php\php.ini
C:\Program Files\xampp\php\php4\php.ini

Step 2:

Uncomment the following line in your php.ini file by removing the semicolon (;).

;extension=php_curl.dll

After that it will look something like something below-

extension=php_curl.dll

Step 3:

Restart your Apache server.

Step 4:

Check your phpinfo() to see whether curl has properly enabled or not.

Enjoy using curl() library.

In a normal array you have to shuffle down all the array entries above 2 and then resize it using the Resize method. You might be better off using an ArrayList.

Me faced same problem, I got a solution using below technic. Copy the btn_check.xml from android-sdk/platforms/android-#(version)/data/res/drawable to your project's drawable folder and change the 'on' and 'off' image states to your custom images.
Then your xml will just need android:button="@drawable/btn_check"

<CheckBox
    android:button="@drawable/btn_check"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:checked="true" />

If you want to use different default Android icons, you can use:

android:button="@android:drawable/..."

if you have some other scripts that conflicts with jQuery wrap your code with this

(function($) {
    //here is your code
})(jQuery);

The warning is telling you what is wrong. The problem is that brew is kept in /usr/local/bin

So, you can try /usr/local/bin/brew doctor

To fix it permanently alter your bash profile (.bashrc or .profile in your home directory) and add the following line:

export PATH=/usr/local/bin:$PATH

git pull origin master --allow-unrelated-histories

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

refer here

Here is 2018 updated solution as described in the Mozilla Development Resources

TO ENCODE FROM UNICODE TO B64

function b64EncodeUnicode(str) {
    // first we use encodeURIComponent to get percent-encoded UTF-8,
    // then we convert the percent encodings into raw bytes which
    // can be fed into btoa.
    return btoa(encodeURIComponent(str).replace(/%([0-9A-F]{2})/g,
        function toSolidBytes(match, p1) {
            return String.fromCharCode('0x' + p1);
    }));
}

b64EncodeUnicode('? à la mode'); // "4pyTIMOgIGxhIG1vZGU="
b64EncodeUnicode('\n'); // "Cg=="

TO DECODE FROM B64 TO UNICODE

function b64DecodeUnicode(str) {
    // Going backwards: from bytestream, to percent-encoding, to original string.
    return decodeURIComponent(atob(str).split('').map(function(c) {
        return '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2);
    }).join(''));
}

b64DecodeUnicode('4pyTIMOgIGxhIG1vZGU='); // "? à la mode"
b64DecodeUnicode('Cg=='); // "\n"

One danger with params Keyword is, if after Calls to the Method have been coded,

1. someone accidentally / intentionally removes one/more required Parameters from the Method Signature, and
2. one/more required Parameters immediately prior to the params Parameter prior to the Signature change were Type-Compatible with the params Parameter,

those Calls will continue to compile with one/more Expressions previously intended for required Parameters being treated as the optional params Parameter. I just ran into the worst possible case of this: the params Parameter was of Type object[].

This is noteworthy because developers are used to the compiler slapping their wrists with the much, much more common scenario where Parameters are removed from a Method with all required Parameters (because the # of Parameters expected would change).

For me, it's not worth the shortcut. (Type)[] without params will work with 0 to infinity # of Parameters without needing Overrides. Worst case is you'll have to add a , new (Type) [] {} to Calls where it doesn't apply.

Btw, imho, the safest (and most readable practice) is to:

1. pass via Named Parameters (which we can now do even in C# ~2 decades after we could in VB ;P) (because:

   1.1. it's the only way that guarantees prevention of unintended values passed to Parameters after Parameter order, Compatible-Type and/or count change after Calls have been coded,

   1.2. it reduces those chances after a Parameter meaning change, because the likely new identifier name reflecting the new meaning is right next to the value being passed to it,

   1.3. it avoids having to count commas and jump back & forth from Call to Signature to see what Expression is being passed for what Parameter, and

   1.3.1. By the way, this reason alone should be plenty (in terms of avoiding frequent error-prone violations of the DRY Principle just to read the code not to mention also modify it), but this reason can be exponentially more important if there are one/more Expressions being Passed that themselves contain commas, i.e. Multi-Dimensional Array Refs or Multi-Parameter Function Calls. In that case, you couldn't even use (which even if you could, would still be adding an extra step per Parameter per Method Call) a Find All Occurrences in a Selection feature in your editor to automate the comma-counting for you.

   1.4. if you must use Optional Parameters (params or not), it allows you to search for Calls where a particular Optional Parameter is Passed (and therefore, most likely is not or at least has the possibility of being not the Default Value),

(NOTE: Reasons 1.2. and 1.3. can ease and reduce chances of error even on coding the initial Calls not to mention when Calls have to be read and/or changed.))

and

2. do so ONE - PARAMETER - PER - LINE for better readability (because:

   2.1. it's less cluttered, and

   2.2. it avoids having to scroll right & back left (and having to do so PER - LINE, since most mortals can't read the left part of multiple lines, scroll right and read the right part)).

   2.3. it's consistent with the "Best Practice" we've already evolved into for Assignment Statements, because every Parameter Passed is in essence an Assignment Statement (assigning a Value or Reference to a Local Variable). Just like those who follow the latest "Best Practice" in Coding Style wouldn't dream of coding multiple Assignment Statements per line, we probably shouldn't (and won't once "Best Practice" catches up to my "genius" ;P ) do so when Passing Parameters.

NOTES:

1. Passing in Variables whose names mirror the Parameters' doesn't help when:

   1.1. you're passing in Literal Constants (i.e. a simple 0/1, false/true or null that even "'Best Practices'" may not require you use a Named Constant for and their purpose can't be easily inferred from the Method name),

   1.2. the Method is significantly lower-level / more generic than the Caller such that you would not want / be able to name your Variables the same/similar to the Parameters (or vice versa), or

   1.3. you're re-ordering / replacing Parameters in the Signature that may result in prior Calls still Compiling because the Types happen to still be compatible.

2. Having an auto-wrap feature like VS does only eliminates ONE (#2.2) of the 8 reasons I gave above. Prior to as late as VS 2015, it did NOT auto-indent (!?! Really, MS?!?) which increases severity of reason #2.1.

VS should have an option that generates Method Call snippets with Named Parameters (one per line of course ;P) and a compiler option that requires Named Parameters (similar in concept to Option Explicit in VB which, btw, the requirement of was prolly once thought equally as outrageous but now is prolly required by "'Best Practices'"). In fact, "back in my day" ;), in 1991 just months into my career, even before I was using (or had even seen) a language with Named Parameters, I had the anti-sheeple / "just cuz you can, don't mean you should" / don't blindly "cut the ends of the roast" sense enough to simulate it (using in-line comments) without having seen anyone do so. Not having to use Named Parameters (as well other syntax that save "'precious'" source code keystrokes) is a relic of the Punch Card era when most of these syntaxes started. There's no excuse for that with modern hardware and IDE's and much more complex software where readability is much, Much, MUCH more important. "Code is read much more often than is written". As long as you're not duplicating non-auto-updated code, every keystroke saved is likely to cost exponentially more when someone (even yourself) is trying to read it later.

For MS IE 10 you'll probably find you need to do the following:

-ms-overflow-style: none

See the following:

https://msdn.microsoft.com/en-us/library/hh771902(v=vs.85).aspx

I use numpy.fromiter to invert a 8-greyscale bitmap, yet no signs of side-effects

import Image
import numpy as np

im = Image.load('foo.jpg')
im = im.convert('L')

arr = np.fromiter(iter(im.getdata()), np.uint8)
arr.resize(im.height, im.width)

arr ^= 0xFF  # invert
inverted_im = Image.fromarray(arr, mode='L')
inverted_im.show()

I think so.. it's possible to 'bind' custom events, like(from: http://docs.jquery.com/Events/bind#typedatafn):

 $("p").bind("myCustomEvent", function(e, myName, myValue){
      $(this).text(myName + ", hi there!");
      $("span").stop().css("opacity", 1)
               .text("myName = " + myName)
               .fadeIn(30).fadeOut(1000);
    });
    $("button").click(function () {
      $("p").trigger("myCustomEvent", [ "John" ]);
    });

When using TFS, step 2 is actually to rename the folder in source control and then get the latest before reopening the solution.

If you want to avoid the mess of the case statement being in your query twice, you may want to place it in a User-Defined-Function.

Sorry, but SQL Server would not render the dataset before the Group By clause so the column alias is not available. You could use it in the Order By.

Series is a one-dimensional labeled array capable of holding any data type (integers, strings, floating point numbers, Python objects, etc.). The axis labels are collectively referred to as the index. The basic method to create a Series is to call:

s = pd.Series(data, index=index)

DataFrame is a 2-dimensional labeled data structure with columns of potentially different types. You can think of it like a spreadsheet or SQL table, or a dict of Series objects.

 d = {'one' : pd.Series([1., 2., 3.], index=['a', 'b', 'c']),
 two' : pd.Series([1., 2., 3., 4.], index=['a', 'b', 'c', 'd'])}
 df = pd.DataFrame(d)

Just install http-server globally

npm install -g http-server

where ever you need to run a html file run the command http-server For ex: your html file is in /home/project/index.html you can do /home/project/$ http-server

That will give you a link to accessyour webpages: http-server Starting up http-server, serving ./ Available on: http://127.0.0.1:8080 http://192.168.0.106:8080

In case you want to write fallback code, decoding from base64 has been present in iOS since the very beginning by caveat of NSURL:

NSURL *URL = [NSURL URLWithString:
      [NSString stringWithFormat:@"data:application/octet-stream;base64,%@",
           base64String]];

return [NSData dataWithContentsOfURL:URL];

Here's a couple of pure css helper classes which lets you handle any kind of toggle content right in your html.

It works with any element you need to switch. Whatever your layout is you just put it inside a couple of elements with the .if-collapsed and .if-not-collapsed classes within the toggle element.

The only catch is that you have to make sure you put the desired initial state of the toggle. If it's initially closed, then put a collapsed class on the toggle.

It also requires the :not selector, it doesn't work on IE8.

HTML example:

<a class="btn btn-primary collapsed" data-toggle="collapse" href="#collapseExample">
  <!--You can put any valid html inside these!-->
  <span class="if-collapsed">Open</span>
  <span class="if-not-collapsed">Close</span>
</a>
<div class="collapse" id="collapseExample">
  <div class="well">
    ...
  </div>
</div>

Less version:

[data-toggle="collapse"] {
    &.collapsed .if-not-collapsed {
         display: none;
    }
    &:not(.collapsed) .if-collapsed {
         display: none;
    }
}

CSS version:

[data-toggle="collapse"].collapsed .if-not-collapsed {
  display: none;
}
[data-toggle="collapse"]:not(.collapsed) .if-collapsed {
  display: none;
}

You'll get this error as well if you are verifying that an extension method of an interface is called.

For example if you are mocking:

var mockValidator = new Mock<IValidator<Foo>>();
mockValidator
  .Verify(validator => validator.ValidateAndThrow(foo, null));

You will get the same exception because .ValidateAndThrow() is an extension on the IValidator<T> interface.

public static void ValidateAndThrow<T>(this IValidator<T> validator, T instance, string ruleSet = null)...

your have to comment that line in ~/.bashrc:

#export PATH=/home/jolth/miniconda3/bin:$PATH

and run:

source ~/.bashrc

In a servlet based artifact, such as @WebServlet, @WebFilter and @WebListener, you can grab a "plain vanilla" JSF @ManagedBean @RequestScoped by:

Bean bean = (Bean) request.getAttribute("beanName");

and @ManagedBean @SessionScoped by:

Bean bean = (Bean) request.getSession().getAttribute("beanName");

and @ManagedBean @ApplicationScoped by:

Bean bean = (Bean) getServletContext().getAttribute("beanName");

Note that this prerequires that the bean is already autocreated by JSF beforehand. Else these will return null. You'd then need to manually create the bean and use setAttribute("beanName", bean).

If you're able to use CDI @Named instead of the since JSF 2.3 deprecated @ManagedBean, then it's even more easy, particularly because you don't anymore need to manually create the beans:

@Inject
private Bean bean;

Note that this won't work when you're using @Named @ViewScoped because the bean can only be identified by JSF view state and that's only available when the FacesServlet has been invoked. So in a filter which runs before that, accessing an @Injected @ViewScoped will always throw ContextNotActiveException.

Only when you're inside @ManagedBean, then you can use @ManagedProperty:

@ManagedProperty("#{bean}")
private Bean bean;

Note that this doesn't work inside a @Named or @WebServlet or any other artifact. It really works inside @ManagedBean only.

If you're not inside a @ManagedBean, but the FacesContext is readily available (i.e. FacesContext#getCurrentInstance() doesn't return null), you can also use Application#evaluateExpressionGet():

FacesContext context = FacesContext.getCurrentInstance();
Bean bean = context.getApplication().evaluateExpressionGet(context, "#{beanName}", Bean.class);

which can be convenienced as follows:

@SuppressWarnings("unchecked")
public static <T> T findBean(String beanName) {
    FacesContext context = FacesContext.getCurrentInstance();
    return (T) context.getApplication().evaluateExpressionGet(context, "#{" + beanName + "}", Object.class);
}

and can be used as follows:

Bean bean = findBean("bean");

See also:

• Backing beans (@ManagedBean) or CDI Beans (@Named)?

In case anyone wants an alternative method...

If it is the last subdirectory in the path, you can use this one-liner:

cd "c:\directory\subdirectory\filename.exe\..\.." && dir /ad /b /s

This would return the following:

c:\directory\subdirectory

The .... drops back to the previous directory. /ad shows only directories /b is a bare format listing /s includes all subdirectories. This is used to get the full path of the directory to print.

export a=$(script.sh)

Hope this helps. Note there are no spaces between variable and =. To echo the output

echo $a

Write code on xml file.

<Button android:width="wrap_content"
        android:height="wrap_content"
        android:id="@+id/button"
        android:text="Click"/>

Write Code in your java file

Button button=(Button)findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener()
    {
        @Override
        public void onClick(View v)
        {
            startActivity(new Intent(getApplicationContext(),Secondclass.class));
           /* if you want to finish the first activity then just call
            finish(); */
        }
    });

Try this (I've used Home controller and Index View):

return RedirectToAction("Index", "Home");

The first part of your question is easy. As already pointed out, cut accepts omission of either the starting or the ending index of a column range, interpreting this as meaning either “from the start to column n (inclusive)” or “from column n (inclusive) to the end,” respectively:

$ printf 'this:is:a:test' | cut -d: -f-2
this:is
$ printf 'this:is:a:test' | cut -d: -f3-
a:test

It also supports combining ranges. If you want, e.g., the first 3 and the last 2 columns in a row of 7 columns:

$ printf 'foo:bar:baz:qux:quz:quux:quuz' | cut -d: -f-3,6-
foo:bar:baz:quux:quuz

However, the second part of your question can be a bit trickier depending on what kind of input you’re expecting. If by “last n columns” you mean “last n columns (regardless of their indices in the overall row)” (i.e. because you don’t necessarily know how many columns you’re going to find in advance) then sadly this is not possible to accomplish using cut alone. In order to effectively use cut to pull out “the last n columns” in each line, the total number of columns present in each line must be known beforehand, and each line must be consistent in the number of columns it contains.

If you do not know how many “columns” may be present in each line (e.g. because you’re working with input that is not strictly tabular), then you’ll have to use something like awk instead. E.g., to use awk to pull out the last 2 “columns” (awk calls them fields, the number of which can vary per line) from each line of input:

$ printf '/a\n/a/b\n/a/b/c\n/a/b/c/d\n' | awk -F/ '{print $(NF-1) FS $(NF)}'
/a
a/b
b/c
c/d

Normally, it is included. However, as @ngn999 said, if your python has been built from source manually, you'll have to add it.

Here is an example of a script that will setup an encapsulated version (virtual environment) of Python3 in your user directory with an encapsulated version of sqlite3.

INSTALL_BASE_PATH="$HOME/local"
cd ~
mkdir build
cd build
[ -f Python-3.6.2.tgz ] || wget https://www.python.org/ftp/python/3.6.2/Python-3.6.2.tgz
tar -zxvf Python-3.6.2.tgz

[ -f sqlite-autoconf-3240000.tar.gz ] || wget https://www.sqlite.org/2018/sqlite-autoconf-3240000.tar.gz
tar -zxvf sqlite-autoconf-3240000.tar.gz

cd sqlite-autoconf-3240000
./configure --prefix=${INSTALL_BASE_PATH}
make
make install

cd ../Python-3.6.2
LD_RUN_PATH=${INSTALL_BASE_PATH}/lib configure
LDFLAGS="-L ${INSTALL_BASE_PATH}/lib"
CPPFLAGS="-I ${INSTALL_BASE_PATH}/include"
LD_RUN_PATH=${INSTALL_BASE_PATH}/lib make
./configure --prefix=${INSTALL_BASE_PATH}
make
make install

cd ~
LINE_TO_ADD="export PATH=${INSTALL_BASE_PATH}/bin:\$PATH"
if grep -q -v "${LINE_TO_ADD}" $HOME/.bash_profile; then echo "${LINE_TO_ADD}" >> $HOME/.bash_profile; fi
source $HOME/.bash_profile

Why do this? You might want a modular python environment that you can completely destroy and rebuild without affecting your managed package installation. This would give you an independent development environment. In this case, the solution is to install sqlite3 modularly too.

Here's a minimal answer that shows your example working:

<html>
<head>
<title>hello.world.animate()</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"
    type="text/javascript"></script>
<style type="text/css">
#coolDiv {
    position: absolute;
    top: 0;
    right: 0;
    width: 200px;
    background-color: #ccc;
}
</style>
<script type="text/javascript">
$(document).ready(function() {
    // this way works fine for Firefox, but 
    // Chrome and Safari can't do it.
    $("#coolDiv").animate({'left':0}, "slow");
    // So basically if you *start* with a right position
    // then stick to animating to another right position
    // to do that, get the window width minus the width of your div:
$("#coolDiv").animate({'right':($('body').innerWidth()-$('#coolDiv').width())}, 'slow');
    // sorry that's so ugly!
});
</script>
</head>
<body>
    <div style="" id="coolDiv">HELLO</div>
</body>
</html>

Original Answer:

You have:

$("#coolDiv").animate({"left":"0px", "slow");

Corrected:

$("#coolDiv").animate({"left":"0px"}, "slow");

Documentation: http://api.jquery.com/animate/

This is a pretty common issue. The solution is to loop backwards:

for (var i = Auction.auctions.length - 1; i >= 0; i--) {
    Auction.auctions[i].seconds--;
    if (Auction.auctions[i].seconds < 0) { 
        Auction.auctions.splice(i, 1);
    }
}

It doesn't matter if you're popping them off of the end because the indices will be preserved as you go backwards.

Here a simple function that use variable arguments:

final static
public int[] merge(final int[] ...arrays ) {
    int size = 0;
    for ( int[] a: arrays )
        size += a.length;

        int[] res = new int[size];

        int destPos = 0;
        for ( int i = 0; i < arrays.length; i++ ) {
            if ( i > 0 ) destPos += arrays[i-1].length;
            int length = arrays[i].length;
            System.arraycopy(arrays[i], 0, res, destPos, length);
        }

        return res;
}

To use:

int[] array1 = {1,2,3};
int[] array2 = {4,5,6};
int[] array3 = {7,8,9};
int[] array1and2and3 = merge(array1, array2, array3);
for ( int x: array1and2and3 ) 
    System.out.print( String.format("%3d", x) );

I don't know if it would work, but maybe you could break the page into columns using the multicol package.

\usepackage{multicol}

\begin{document}
\begin{multicols}{2}[Your list here]
\end{multicols}

So, this is an old post, however I think I can contribute something to it.

You can always do something like this:

package com.dyna.test;  

import java.io.File;  
import java.lang.reflect.Constructor;  

public class DynamicClass{  

  @SuppressWarnings("unchecked")  
  public Object castDynamicClass(String className, String value){  
    Class<?> dynamicClass;  

    try  
    {  
      //We get the actual .class object associated with the specified name  
      dynamicClass = Class.forName(className);  



    /* We get the constructor that received only 
     a String as a parameter, since the value to be used is a String, but we could
easily change this to be "dynamic" as well, getting the Constructor signature from
the same datasource we get the values from */ 


      Constructor<?> cons =  
        (Constructor<?>) dynamicClass.getConstructor(new Class<?>[]{String.class});  

      /*We generate our object, without knowing until runtime 
 what type it will be, and we place it in an Object as 
 any Java object extends the Object class) */  
      Object object = (Object) cons.newInstance(new Object[]{value});  

      return object;  
    }  
    catch (Exception e)  
    {  
      e.printStackTrace();  
    }  
    return null;  
  }  

  public static void main(String[] args)  
  {   
    DynamicClass dynaClass = new DynamicClass();  

    /* 
 We specify the type of class that should be used to represent 
 the value "3.0", in this case a Double. Both these parameters 
 you can get from a file, or a network stream for example. */  
    System.out.println(dynaClass.castDynamicClass("java.lang.Double", "3.0"));  

    /* 
We specify a different value and type, and it will work as 
 expected, printing 3.0 in the above case and the test path in the one below, as the Double.toString() and 
 File.toString() would do. */  
    System.out.println(dynaClass.castDynamicClass("java.io.File", "C:\\testpath"));  
  }  

Of course, this is not really dynamic casting, as in other languages (Python for example), because java is a statically typed lang. However, this can solve some fringe cases where you actually need to load some data in different ways, depending on some identifier. Also, the part where you get a constructor with a String parameter could be probably made more flexible, by having that parameter passed from the same data source. I.e. from a file, you get the constructor signature you want to use, and the list of values to be used, that way you pair up, say, the first parameter is a String, with the first object, casting it as a String, next object is an Integer, etc, but somehwere along the execution of your program, you get now a File object first, then a Double, etc.

In this way, you can account for those cases, and make a somewhat "dynamic" casting on-the-fly.

Hope this helps anyone as this keeps turning up in Google searches.

As I answered here, you can remove spines from all your plots through style settings (style sheet or rcParams):

import matplotlib as mpl

mpl.rcParams['axes.spines.left'] = False
mpl.rcParams['axes.spines.right'] = False
mpl.rcParams['axes.spines.top'] = False
mpl.rcParams['axes.spines.bottom'] = False

-- Change the starting value of the sequence

ALTER SEQUENCE project_id_seq RESTART 3000;

Same but dynamic :

SELECT SETVAL('project_id_seq', (SELECT MAX(id) + 1 FROM project));

I agree the use of a SELECT is disturbing but it works.

Source: https://kylewbanks.com/blog/Adding-or-Modifying-a-PostgreSQL-Sequence-Auto-Increment

var seconds = 0;
setInterval(function () {
  seconds++;
}, 1000);

There you go, now you have a variable counting seconds elapsed. Since I don't know the context, you'll have to decide whether you want to attach that variable to an object or make it global.

Set interval is simply a function that takes a function as it's first parameter and a number of milliseconds to repeat the function as it's second parameter.

You could also solve this by saving and comparing times.

EDIT: This answer will provide very inconsistent results due to things such as the event loop and the way browsers may choose to pause or delay processing when a page is in a background tab. I strongly recommend using the accepted answer.

My app was transitioned to Xcode 5 seamlessly because it can still build with the original iOS Deployment Target that you set in the project (5.1 in my case). If the new SDK doesn't cause some insurmountable problem, then why not build using it? Surely there are many improvements under the hood.

For example, I will much prefer to use Xcode 5 instead of Xcode 4.6.3. Why? I'll get a lot more battery life because the UI scrolling of text/code areas in Xcode 5 no longer chews up an entire CPU thread.

This works for me:

 "jest": {
    "collectCoverage": true,
    "coverageReporters": ["json", "html"]
  },
  "scripts": {
    "test": "jest  --coverage"
  },

Run:

yarn/npm test

When you read in the year month day hour minutes with something like nextInt() it leaves rest of the line in the parser/buffer (even if it is blank) so when you call nextLine() you are reading the rest of this first line.

I suggest you to use scan.next() instead of scan.nextLine().

Here's an alternative solution.

If you're doing a lot of changes to the DOM (add/removing elements and classes), there could be several things that need to be "reset." Rather than clearing each element when the modal closes, you could reset the entire modal everytime it's reopened.

Sample code:

(function(){

    var template = null

    $('.modal').on('show.bs.modal', function (event) {
        if (template == null) {
            template = $(this).html()
        } else {
            $(this).html(template)
        }
        // other initialization here, if you want to
    })

})()

You can still write your initial state in HTML without worrying too much about what will happen to it later. You can write your UI JS code without worrying about having to clean up later. Each time the modal is relaunched it will be reset to the exact same state it was in the first time.

Edit: Here's a version that should handle multiple modals (I haven't tested it)...

(function(){

    $('.modal').on('show.bs.modal', function (event) {
        if (!$(this).data('template')) {
            $(this).data('template', $(this).html())
        } else {
            $(this).html($this.data('template'))
        }
        // other initialization here, if you want to
    })

})()

Yes, since Base64 encodes binary data into ASCII strings using a limited set of characters, you can simply check it with this regular expression:

/^[A-Za-z0-9\=\+\/\s\n]+$/s

which will assure the string only contains A-Z, a-z, 0-9, '+', '/', '=', and whitespace.

I really hope this helps somebody (who looks to the final answers first as myself):

I continuously tried to type in

docker push user/repo/tag

Instead

docker push user/repo:tag

Since I also made my tag like this:

docker tag image user/repo/tag

...all hell broke lose.

I sincirely hope you don't repeat my mistake. I wasted like 30 mins on this...

Looks like it is a known problem with EdmGen: http://social.msdn.microsoft.com/forums/en-US/adodotnetentityframework/thread/12aaac4d-2be8-44f3-9448-d7c659585945/

Can't you do this with just one heap? Update: no. See the comment.

Invariant: After reading 2*n inputs, the min-heap holds the n largest of them.

Loop: Read 2 inputs. Add them both to the heap, and remove the heap's min. This reestablishes the invariant.

So when 2n inputs have been read, the heap's min is the nth largest. There'll need to be a little extra complication to average the two elements around the median position and to handle queries after an odd number of inputs.

To connect from the localhost you need to add '--net host':

docker run --name some-postgres --net host -e POSTGRES_PASSWORD=mysecretpassword -d -p 5432:5432 postgres

You can access the server directly without using exec from your localhost, by using:

psql -h localhost -p 5432 -U postgres

A small addition to the solutions before: object_id(@TableName) works only if you are in the default schema.

(Select id from sysobjects where name = @TableName)

works in any schema provided @tableName is unique.

This is a variant of the list comprehension answer given by @psun.

By switching the output value, you can actually extract the matching pattern from the list comprehension (something not possible with the any() approach by @Lauritz-v-Thaulow)

extensionsToCheck = ['.pdf', '.doc', '.xls']
url_string = 'http://.../foo.doc'

print [extension for extension in extensionsToCheck if(extension in url_string)]

['.doc']`

You can furthermore insert a regular expression if you want to collect additional information once the matched pattern is known (this could be useful when the list of allowed patterns is too long to write into a single regex pattern)

print [re.search(r'(\w+)'+extension, url_string).group(0) for extension in extensionsToCheck if(extension in url_string)]

['foo.doc']

Tried the above but the option to amend the permission was not available for the htdocs folder,

My solution was:

1. Open applications folder
2. Locate XAMPP folder
3. Right click, get info (as described above)
4. In pop-up window locate the 'sharing & permission' section
5. Click the 'locked' padlock symbol
6. Enter admin password
7. Change 'Everyone' permissions to read & write
8. In the get info window still, select the 'cog' icon' drop down option at the very bottom and select 'Apply to enclosed items' this will adjust the permission across all sub-folders as well.
9. Re-lock the padlock symbol
10. Close the 'Get Info' window.

Task complete, this will now allow you to populate sub-folders within the htdocs folder as needed to populate your website(s).

You need to provide a valid strict weak ordering comparison for the type stored in the queue, Person in this case. The default is to use std::less<T>, which resolves to something equivalent to operator<. This relies on it's own stored type having one. So if you were to implement

bool operator<(const Person& lhs, const Person& rhs); 

it should work without any further changes. The implementation could be

bool operator<(const Person& lhs, const Person& rhs)
{
  return lhs.age < rhs.age;
}

If the the type does not have a natural "less than" comparison, it would make more sense to provide your own predicate, instead of the default std::less<Person>. For example,

struct LessThanByAge
{
  bool operator()(const Person& lhs, const Person& rhs) const
  {
    return lhs.age < rhs.age;
  }
};

then instantiate the queue like this:

std::priority_queue<Person, std::vector<Person>, LessThanByAge> pq;

Concerning the use of std::greater<Person> as comparator, this would use the equivalent of operator> and have the effect of creating a queue with the priority inverted WRT the default case. It would require the presence of an operator> that can operate on two Person instances.

Maybe this code helps:

var chunk_size = 10;_x000D_
var arr = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17];_x000D_
var groups = arr.map( function(e,i){ _x000D_
     return i%chunk_size===0 ? arr.slice(i,i+chunk_size) : null; _x000D_
}).filter(function(e){ return e; });_x000D_
console.log({arr, groups})

Try the following:

 for i in {1..600}; do echo wget http://example.com/search/link$(($i % 5)); done

The $(( )) syntax does an arithmetic evaluation of the contents.

Use this:

$('a[href^="#"]').on('click', function(event) {

    var target = $( $(this).attr('href') );

    if( target.length ) {
        event.preventDefault();
        $('html, body').animate({
            scrollTop: target.offset().top
        }, 500);
    }

});

write.csv(t, "t.csv", row.names=FALSE)

From ?write.csv:

row.names: either a logical value indicating whether the row names of
          ‘x’ are to be written along with ‘x’, or a character vector
          of row names to be written.

if you have ID or any specific field in your item, you can use filter(). its act like Where().

<a class="btn" ng-click="remove(item)">Delete</a>

in controller:

$scope.remove = function(item) { 
  $scope.bdays = $scope.bdays.filter(function (element) {
                    return element.ID!=item.ID
                });
}

thePlayers[i] = new Player(i); I just deleted the i inside Player(i); and it worked.

so the code line should be:

thePlayers[i] = new Player9();

You can certainly us the a Select Agregation statement as Postulated by Ben James, However This will result in a view with as many columns as you have tables. An alternate method may be as follows:

SELECT COUNT(user_table.id) AS TableCount,'user_table' AS TableSource FROM user_table
UNION SELECT COUNT(cat_table.id) AS TableCount,'cat_table' AS TableSource FROM cat_table
UNION SELECT COUNT(course_table.id) AS TableCount, 'course_table' AS TableSource From course_table;

The Nice thing about an approch like this is that you can explicitly write the Union statements and generate a view or create a temp table to hold values that are added consecutively from a Proc cals using variables in place of your table names. I tend to go more with the latter, but it really depends on personal preference and application. If you are sure the tables will never change, you want the data in a single row format, and you will not be adding tables. stick with Ben James' solution. Otherwise I'd advise flexibility, you can always hack a cross tab struc.

In such cases, you can convert the values of enum to a List and stream through it. Something like below examples. I would recommend using filter().

Using ForEach:

List<Category> category = Arrays.asList(Category.values());
category.stream().forEach(eachCategory -> {
            if(eachCategory.toString().equals("3")){
                String name = eachCategory.name();
            }
        });

Or, using Filter:

When you want to find with code:

List<Category> categoryList = Arrays.asList(Category.values());
Category category = categoryList.stream().filter(eachCategory -> eachCategory.toString().equals("3")).findAny().orElse(null);

System.out.println(category.toString() + " " + category.name());

When you want to find with name:

List<Category> categoryList = Arrays.asList(Category.values());
Category category = categoryList.stream().filter(eachCategory -> eachCategory.name().equals("Apple")).findAny().orElse(null);

System.out.println(category.toString() + " " + category.name());

Hope it helps! I know this is a very old post, but someone can get help.

The original question concerns infinity. So, why not use

#define Infinity  ((double)(42 / 0.0))

according to the IEEE definition? You can negate that of course.

I had the same problem yesterday, but I did it in a very clean way which works for both client side and server side validation.

Condition: Based on the value of other property in the model, you want to make another property required. Here is the code:

public class RequiredIfAttribute : RequiredAttribute
{
  private String PropertyName { get; set; }
  private Object DesiredValue { get; set; }

  public RequiredIfAttribute(String propertyName, Object desiredvalue)
  {
    PropertyName = propertyName;
    DesiredValue = desiredvalue;
  }

  protected override ValidationResult IsValid(object value, ValidationContext context)
  {
    Object instance = context.ObjectInstance;
    Type type = instance.GetType();
    Object proprtyvalue = type.GetProperty(PropertyName).GetValue(instance, null);
    if (proprtyvalue.ToString() == DesiredValue.ToString())
    {
      ValidationResult result = base.IsValid(value, context);
      return result;
    }
    return ValidationResult.Success;
  }
}

PropertyName is the property on which you want to make your condition
DesiredValue is the particular value of the PropertyName (property) for which your other property has to be validated for required

Say you have the following:

public enum UserType
{
  Admin,
  Regular
}

public class User
{
  public UserType UserType {get;set;}

  [RequiredIf("UserType",UserType.Admin,
              ErrorMessageResourceName="PasswordRequired", 
              ErrorMessageResourceType = typeof(ResourceString))]
  public string Password { get; set; }
}

At last but not the least, register adapter for your attribute so that it can do client side validation (I put it in global.asax, Application_Start)

DataAnnotationsModelValidatorProvider.RegisterAdapter(typeof(RequiredIfAttribute),
                                                      typeof(RequiredAttributeAdapter));

EDITED

Some people was complaining that the client side fires no matter what or it does not work. So I modified the above code to do conditional client side validation with Javascript as well. For this case you don't need to register adapter

 public class RequiredIfAttribute : ValidationAttribute, IClientValidatable
    {
        private String PropertyName { get; set; }
        private Object DesiredValue { get; set; }
        private readonly RequiredAttribute _innerAttribute;

        public RequiredIfAttribute(String propertyName, Object desiredvalue)
        {
            PropertyName = propertyName;
            DesiredValue = desiredvalue;
            _innerAttribute = new RequiredAttribute();
        }

        protected override ValidationResult IsValid(object value, ValidationContext context)
        {
            var dependentValue = context.ObjectInstance.GetType().GetProperty(PropertyName).GetValue(context.ObjectInstance, null);

            if (dependentValue.ToString() == DesiredValue.ToString())
            {
                if (!_innerAttribute.IsValid(value))
                {
                    return new ValidationResult(FormatErrorMessage(context.DisplayName), new[] { context.MemberName });
                }
            }
            return ValidationResult.Success;
        }

        public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
        {
            var rule = new ModelClientValidationRule
            {
                ErrorMessage = ErrorMessageString,
                ValidationType = "requiredif",
            };
            rule.ValidationParameters["dependentproperty"] = (context as ViewContext).ViewData.TemplateInfo.GetFullHtmlFieldId(PropertyName);
            rule.ValidationParameters["desiredvalue"] = DesiredValue is bool ? DesiredValue.ToString().ToLower() : DesiredValue;

            yield return rule;
        }
    }

And finally the javascript ( bundle it and renderit...put it in its own script file)

$.validator.unobtrusive.adapters.add('requiredif', ['dependentproperty', 'desiredvalue'], function (options) {
    options.rules['requiredif'] = options.params;
    options.messages['requiredif'] = options.message;
});

$.validator.addMethod('requiredif', function (value, element, parameters) {
    var desiredvalue = parameters.desiredvalue;
    desiredvalue = (desiredvalue == null ? '' : desiredvalue).toString();
    var controlType = $("input[id$='" + parameters.dependentproperty + "']").attr("type");
    var actualvalue = {}
    if (controlType == "checkbox" || controlType == "radio") {
        var control = $("input[id$='" + parameters.dependentproperty + "']:checked");
        actualvalue = control.val();
    } else {
        actualvalue = $("#" + parameters.dependentproperty).val();
    }
    if ($.trim(desiredvalue).toLowerCase() === $.trim(actualvalue).toLocaleLowerCase()) {
        var isValid = $.validator.methods.required.call(this, value, element, parameters);
        return isValid;
    }
    return true;
});

You need obviously the unobstrusive validate jQuery to be included as requirement

> and < is a character entity reference for the > and < character in HTML.

It is not possible to use the less than (<) or greater than (>) signs in your file, because the browser will mix them with tags.

for these difficulties you can use entity names(>) and entity numbers(<).

You can use the std::string::find() function to find the position of your string delimiter, then use std::string::substr() to get a token.

Example:

std::string s = "scott>=tiger";
std::string delimiter = ">=";
std::string token = s.substr(0, s.find(delimiter)); // token is "scott"

• The find(const string& str, size_t pos = 0) function returns the position of the first occurrence of str in the string, or npos if the string is not found.

• The substr(size_t pos = 0, size_t n = npos) function returns a substring of the object, starting at position pos and of length npos.

If you have multiple delimiters, after you have extracted one token, you can remove it (delimiter included) to proceed with subsequent extractions (if you want to preserve the original string, just use s = s.substr(pos + delimiter.length());):

s.erase(0, s.find(delimiter) + delimiter.length());

This way you can easily loop to get each token.

Complete Example

std::string s = "scott>=tiger>=mushroom";
std::string delimiter = ">=";

size_t pos = 0;
std::string token;
while ((pos = s.find(delimiter)) != std::string::npos) {
    token = s.substr(0, pos);
    std::cout << token << std::endl;
    s.erase(0, pos + delimiter.length());
}
std::cout << s << std::endl;

Output:

scott
tiger
mushroom

Use prop() instead of attr() to set the value of checked. Also use :checkbox in find method instead of input and be specific.

Live Demo

$("#news_list tr").click(function() {
    var ele = $(this).find('input');
    if(ele.is(':checked')){
        ele.prop('checked', false);
        $(this).removeClass('admin_checked');
    }else{
        ele.prop('checked', true);
        $(this).addClass('admin_checked');
    }
});

Use prop instead of attr for properties like checked

As of jQuery 1.6, the .attr() method returns undefined for attributes that have not been set. To retrieve and change DOM properties such as the checked, selected, or disabled state of form elements, use the .prop() method

I have had the same problem, and here's how I solved it: I added the plugin "org.eclipse.core.runtime" in the "plugins" section on the "configuration" tab of the .product editor. I set it's start level to default and auto-start to true. I removed other plugins. My reasoning was this: Eclipse is complaining that the org.eclipse.core.runtime isn't started, so let's make sure that it does start, and that it's the only plugin that's starting.

My application ran fine after I did this. I then inspected the config.ini to see what changed, and saw that org.eclipse.core.runtime was now changed to org.eclipse.core.runtime@start. This is consistent with BalusC's suggestion, I just did it from the .product editor.

It would be more correct to say that stdin, stdout, and stderr are "I/O streams" rather than files. As you've noticed, these entities do not live in the filesystem. But the Unix philosophy, as far as I/O is concerned, is "everything is a file". In practice, that really means that you can use the same library functions and interfaces (printf, scanf, read, write, select, etc.) without worrying about whether the I/O stream is connected to a keyboard, a disk file, a socket, a pipe, or some other I/O abstraction.

Most programs need to read input, write output, and log errors, so stdin, stdout, and stderr are predefined for you, as a programming convenience. This is only a convention, and is not enforced by the operating system.

Also got the same error when using ajax.

If you're using ajax to render forms with select2, the input_html class must be different from those NOT rendered using ajax. Not quite sure why it works this way though.

you can also set environment variables in the script itself, rather than passing region_name parameter

os.environ['AWS_DEFAULT_REGION'] = 'your_region_name'

case sensitivity may matter.

On linux, /etc/apache2/mods-enabled/php5.conf dans php5.load exists. If not, enables this modules (may require to sudo apt-get install libapache2-mod-php5).

When something in the state has changed and you need to call a side effect (like a request to api - get, put, post, delete). So you need to call componentDidUpdate() because componentDidMount() is already called.

After calling side effect in componentDidUpdate(), you can set the state to new value based on the response data in the then((response) => this.setState({newValue: "here"})). Please make sure that you need to check prevProps or prevState to avoid infinite loop because when setting state to a new value, the componentDidUpdate() will call again.

There are 2 places to call a side effect for best practice - componentDidMount() and componentDidUpdate()

Yes,

$date = 'July 25 2010';
echo date('d/m/Y', strtotime($date));

The m formats the month to its numerical representation there.

Using CMD you can run your python scripts as long as the installed python is added to the path with the following line:

C: \ Python27;

The (27) is example referring to version 2.7, add as per your version.

Path to system path:

Control Panel => System and Security => System => Advanced Settings => Advanced => Environment Variables.

Under "User Variables," append the PATH variable to the path of the Python installation directory (As above).

Once this is done, you can open a CMD where your scripts are saved, or manually navigate through the CMD.

To run the script enter:

C: \ User \ X \ MyScripts> python ScriptName.py

I am using this approach and it is working fine:

 public class PushNotification
 {
     private static readonly ILog Logger = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
        // firebase
     private static Uri FireBasePushNotificationsURL = new Uri("https://fcm.googleapis.com/fcm/send");
     private static string ServerKey = ConfigurationManager.AppSettings["FIREBASESERVERKEY"];

     public static async Task<bool> SendPushNotification(List<SendNotificationModel> notificationData)
     {
         try
         {
             bool sent = false;         
             foreach (var data in notificationData)
             {
                 var messageInformation = new Message()
                 {
                     notification = new Notification()
                     {
                         title = data.Title,
                         text = data.Message,
                         ClickAction = "FCM_PLUGIN_ACTIVITY"
                      },
                      data = data.data,
                      priority="high",
                      to =data.DeviceId
                 };
                 string jsonMessage = JsonConvert.SerializeObject(messageInformation);

                 //Create request to Firebase API
                 var request = new HttpRequestMessage(HttpMethod.Post, FireBasePushNotificationsURL);

                 request.Headers.TryAddWithoutValidation("Authorization", "key=" + ServerKey);
                 request.Content = new StringContent(jsonMessage, Encoding.UTF8, "application/json");

                 HttpResponseMessage result;
                 using (var client = new HttpClient())
                 {
                     result = await client.SendAsync(request);
                     sent =  result.IsSuccessStatusCode;
                 }             
             }

                return sent;
         }
         catch(Exception ex)
         {
             Logger.Error(ex);
             return false;
          }
    }
 }

After having read many answers and comments to this question, I was left with the impression that one either has to use the Joda time or else take into account some peculiarities with the daylight saving time etc. Since I didn't want to do either of these, I ended up writing a few lines of code to calculate the difference between two dates without using any date or time related Java classes.

In the code below the numbers of year, month and day are the same as in real life. For example in December 24th 2015, the year = 2015, the month = 12 and the day = 24.

I want to share this code in case someone else wants to use it. There are 3 methods: 1) A method to find out whether a given year is a leap year 2) A method to calculate the number of a given day in relation to January 1st of a given year 3) A method to calculate the number of days between any two dates using the method 2 (number of the end date minus number of the start date).

Here are the methods:

1)

public static boolean isLeapYear (int year) {
    //Every 4. year is a leap year, except if the year is divisible by 100 and not by 400
    //For example 1900 is not a leap year but 2000 is

    boolean result = false;

    if (year % 4 == 0) {
        result = true;
    }
    if (year % 100 == 0) {
        result = false;
    }
    if (year % 400 == 0) {
        result = true;
    }

    return result;

}

2)

public static int daysGoneSince (int yearZero, int year, int month, int day) {
    //Calculates the day number of the given date; day 1 = January 1st in the yearZero

    //Validate the input
    if (year < yearZero || month < 1 || month > 12 || day < 1 || day > 31) {
        //Throw an exception
        throw new IllegalArgumentException("Too many or too few days in month or months in year or the year is smaller than year zero");
    }
    else if (month == 4 || month == 6 || month == 9 || month == 11) {//Months with 30 days
        if (day == 31) {
            //Throw an exception
            throw new IllegalArgumentException("Too many days in month");
        }
    }
    else if (month == 2) {//February 28 or 29
        if (isLeapYear(year)) {
            if (day > 29) {
                //Throw an exception
                throw new IllegalArgumentException("Too many days in month");
            }
        }
        else if (day > 28) {
            //Throw an exception
            throw new IllegalArgumentException("Too many days in month");
        }
    }

    //Start counting days
    int days = 0;

    //Days in the target month until the target day
    days = days + day;

    //Days in the earlier months in the target year
    for (int i = 1; i < month; i++) {
        switch (i) {
            case 1: case 3: case 5:
            case 7: case 8: case 10:
            case 12:
                days = days + 31;
                break;
            case 2:
                days = days + 28;
                if (isLeapYear(year)) {
                    days = days + 1;
                }
                break;
            case 4: case 6: case 9: case 11:
                days = days + 30;
                break;
        }
    }

    //Days in the earlier years
    for (int i = yearZero; i < year; i++) {
        days = days + 365;
        if (isLeapYear(i)) {
            days = days + 1;
        }
    }

    return days;

}

3)

public static int dateDiff (int startYear, int startMonth, int startDay, int endYear, int endMonth, int endDay) {

    int yearZero;

    //daysGoneSince presupposes that the first argument be smaller or equal to the second argument
    if (10000 * startYear + 100 * startMonth + startDay > 10000 * endYear + 100 * endMonth + endDay) {//If the end date is earlier than the start date
        yearZero = endYear;
    }
    else {
        yearZero = startYear;
    }

    return daysGoneSince(yearZero, endYear, endMonth, endDay) - daysGoneSince(yearZero, startYear, startMonth, startDay);

}

As an aside, it is always a good practice (and possibly a solution for this type of issue) to delete a large number of rows by using batches:

WHILE EXISTS (SELECT 1 
              FROM   YourTable 
              WHERE  <yourCondition>) 
  DELETE TOP(10000) FROM YourTable 
  WHERE  <yourCondition>

Many languages have variables, which are of a specific type and have a value. Python does not have variables; it has objects, and you use names to refer to these objects.

In other languages, when you say:

a = 1

then a (typically integer) variable changes its contents to the value 1.

In Python,

a = 1

means “use the name a to refer to the object 1”. You can do the following in an interactive Python session:

>>> type(1)
<type 'int'>

The function type is called with the object 1; since every object knows its type, it's easy for type to find out said type and return it.

Likewise, whenever you define a function

def funcname(param1, param2):

the function receives two objects, and names them param1 and param2, regardless of their types. If you want to make sure the objects received are of a specific type, code your function as if they are of the needed type(s) and catch the exceptions that are thrown if they aren't. The exceptions thrown are typically TypeError (you used an invalid operation) and AttributeError (you tried to access an inexistent member (methods are members too) ).

since your form has a field called 'q', leaving it blank still sends an empty string.

try

if 'q' in request.GET and request.GET['q'] != "" :
     message
else
     error message

In VirtualBox you should add custom resolution via the command:

VBoxManage setextradata "VM name" "CustomVideoMode1" "800x480x16"

instead of editing a .vbox file.

This solution works fine for me!

This will give you a very compact list of all messages for any specified time.

git log --since=1/11/2011 --until=28/11/2011 --no-merges --format=%B > CHANGELOG.TXT

File paths in the DB is definitely the way to go - I've heard story after story from customers with TB of images that it became a nightmare trying to store any significant amount of images in a DB - the performance hit alone is too much.

Very simple code with Bootstrap and JQuery without any additionnal javascript code :

HTML :

<div class="dropdown">
  <button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
    Dropdown button
  </button>
  <form class="dropdown-menu" aria-labelledby="dropdownMenuButton">
    <label class="dropdown-item"><input type="checkbox" name="" value="one">First checkbox</label>
    <label class="dropdown-item"><input type="checkbox" name="" value="two">Second checkbox</label>
    <label class="dropdown-item"><input type="checkbox" name="" value="three">Third checkbox</label>
  </form>
</div>

CSS :

.dropdown-menu label {
  display: block;
}

https://codepen.io/funkycram/pen/joVYBv

<RadioButton
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/radio"
    android:buttonTint="@color/my_color"/>

All button will change color, the circle box and the central check.

To access the first and last elements, try.

var nodes = div.querySelectorAll('[move_id]');
var first = nodes[0];
var last = nodes[nodes.length- 1];

For robustness, add index checks.

Yes, the order of nodes is pre-order depth-first. DOM's document order is defined as,

There is an ordering, document order, defined on all the nodes in the document corresponding to the order in which the first character of the XML representation of each node occurs in the XML representation of the document after expansion of general entities. Thus, the document element node will be the first node. Element nodes occur before their children. Thus, document order orders element nodes in order of the occurrence of their start-tag in the XML (after expansion of entities). The attribute nodes of an element occur after the element and before its children. The relative order of attribute nodes is implementation-dependent.

Either you need

std::function<void(Foo*)> f = &Foo::doSomething;

so that you can call it on any instance, or you need to bind a specific instance, for example this

std::function<void(void)> f = std::bind(&Foo::doSomething, this);

In my case the underlying system account through which the package was running was locked out. Once we got the system account unlocked and reran the package, it executed successfully. The developer said that he got to know of this while debugging wherein he directly tried to connect to the server and check the status of the connection.

I tried all above but nothing helps, at last i just figured out that under setting >> apps, device still has an entry for uninstalled application as disabled, i just uninstalled from there and it starts working.

:) might be useful for someone

This related to these 2 topics below, I want get both GetHtmlErrorMessage and Session on Error page.

Session is null after ResponseRewrite

Why is HttpContext.Session null when redirectMode = ResponseRewrite

I tried and see solution which no need Server.Transfer() or Response.Redirect()

First: remove ResponseRewrite in web.config

Web.config

<customErrors defaultRedirect="errorHandler.aspx" mode="On" />

Then Global.asax

    void Application_Error(object sender, EventArgs e)
    {
         if(Context.IsCustomErrorEnabled)
         {     
            Exception ex = Server.GetLastError();
            Application["TheException"] = ex; //store the error for later
         }
    }

Then errorHandler.aspx.cs

        protected void Page_Load(object sender, EventArgs e)
            {       
                string htmlErrorMessage = string.Empty ;
                Exception ex = (Exception)Application["TheException"];
                string yourSessionValue = HttpContext.Current.Session["YourSessionId"].ToString();

                //continue with ex to get htmlErrorMessage 
                if(ex.GetHtmlErrorMessage() != null){              
                    htmlErrorMessage = ex.GetHtmlErrorMessage();
                }   
                // continue your code
            }

For references

http://www.developer.com/net/asp/article.php/3299641/ServerTransfer-Vs-ResponseRedirect.htm

You can write your own rule!

 // add the rule here
 $.validator.addMethod("valueNotEquals", function(value, element, arg){
  return arg !== value;
 }, "Value must not equal arg.");

 // configure your validation
 $("form").validate({
  rules: {
   SelectName: { valueNotEquals: "default" }
  },
  messages: {
   SelectName: { valueNotEquals: "Please select an item!" }
  }  
 });

tl;dr

You asked:

I was looking for a one-liner like:

Ask and ye shall receive. Convert from terrible legacy class Date to its modern replacement, Instant.

myJavaUtilDate.toInstant().toString()

2020-05-05T19:46:12.912Z

java.time

In Java 8 and later we have the new java.time package built in (Tutorial). Inspired by Joda-Time, defined by JSR 310, and extended by the ThreeTen-Extra project.

The best solution is to sort your date-time objects rather than strings. But if you must work in strings, read on.

An Instant represents a moment on the timeline, basically in UTC (see class doc for precise details). The toString implementation uses the DateTimeFormatter.ISO_INSTANT format by default. This format includes zero, three, six or nine digits digits as needed to display fraction of a second up to nanosecond precision.

String output = Instant.now().toString(); // Example: '2015-12-03T10:15:30.120Z'

If you must interoperate with the old Date class, convert to/from java.time via new methods added to the old classes. Example: Date::toInstant.

myJavaUtilDate.toInstant().toString()

You may want to use an alternate formatter if you need a consistent number of digits in the fractional second or if you need no fractional second.

Another route if you want to truncate fractions of a second is to use ZonedDateTime instead of Instant, calling its method to change the fraction to zero.

Note that we must specify a time zone for ZonedDateTime (thus the name). In our case that means UTC. The subclass of ZoneID, ZoneOffset, holds a convenient constant for UTC. If we omit the time zone, the JVM’s current default time zone is implicitly applied.

String output = ZonedDateTime.now( ZoneOffset.UTC ).withNano( 0 ).toString();  // Example: 2015-08-27T19:28:58Z

About java.time

The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date, Calendar, & SimpleDateFormat.

To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.

The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.

You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.* classes. Hibernate 5 & JPA 2.2 support java.time.

Where to obtain the java.time classes?

• Java SE 8, Java SE 9, Java SE 10, Java SE 11, and later - Part of the standard Java API with a bundled implementation.
  • Java 9 adds some minor features and fixes.
• Java SE 6 and Java SE 7
  • Most of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
• Android
  • Later versions of Android bundle implementations of the java.time classes.
  • For earlier Android (<26), the ThreeTenABP project adapts ThreeTen-Backport (mentioned above). See How to use ThreeTenABP….

Joda-Time

UPDATE: The Joda -Time project is now in maintenance mode, with the team advising migration to the java.time classes.

I was looking for a one-liner

Easy if using the Joda-Time 2.3 library. ISO 8601 is the default formatting.

Time Zone

In the code example below, note that I am specifying a time zone rather than depending on the default time zone. In this case, I'm specifying UTC per your question. The Z on the end, spoken as "Zulu", means no time zone offset from UTC.

Example Code

// import org.joda.time.*;

String output = new DateTime( DateTimeZone.UTC );

Output…

2013-12-12T18:29:50.588Z

If your OS is Unix base use this code:

import os
def check_process(name):
    output = []
    cmd = "ps -aef | grep -i '%s' | grep -v 'grep' | awk '{ print $2 }' > /tmp/out"
    os.system(cmd % name)
    with open('/tmp/out', 'r') as f:
        line = f.readline()
        while line:
            output.append(line.strip())
            line = f.readline()
            if line.strip():
                output.append(line.strip())

    return output

Then call it and pass it a process name to get all PIDs.

>>> check_process('firefox')
['499', '621', '623', '630', '11733']

Here is a summary of my understanding after reading what others have posted:

Important!

Base64 encoding is not meant to provide security

Base64 encoding is not meant to compress data

Why do we use Base64

Base64 is a text representation of data that consists of only 64 characters which are the alphanumeric characters (lowercase and uppercase), +, / and =. These 64 characters are considered ‘safe’, that is, they can not be misinterpreted by legacy computers and programs unlike characters such as <, > \n and many others.

Change

private ArrayList finishingOrder;

//Make an ArrayList to hold RaceCar objects to determine winners
finishingOrder = Collections.synchronizedCollection(new ArrayList(numberOfRaceCars)

to

private List finishingOrder;

//Make an ArrayList to hold RaceCar objects to determine winners
finishingOrder = Collections.synchronizedList(new ArrayList(numberOfRaceCars)

List is a supertype of ArrayList so you need to specify that.

Otherwise, what you're doing seems fine. Other option is you can use Vector, which is synchronized, but this is probably what I would do.

it sometimes occurs when we use a custom adapter in any activity of fragment . and we return null object i.e null view so the activity gets confused which view to load , so that is why this exception occurs

shows the position where to change the view

The default console handler is attached to the root logger, which is a parent of all other loggers including yours. So I see two ways to solve your problem:

If this is only affects this particular class of yours, the simplest solution would be to disable passing the logs up to the parent logger:

logger.setUseParentHandlers(false);

If you want to change this behaviour for your whole app, you could remove the default console handler from the root logger altogether before adding your own handlers:

Logger globalLogger = Logger.getLogger("global");
Handler[] handlers = globalLogger.getHandlers();
for(Handler handler : handlers) {
    globalLogger.removeHandler(handler);
}

Note: if you want to use the same log handlers in other classes too, the best way is to move the log configuration into a config file in the long run.

"Better" is subjective.

querySelector is the newer feature.

getElementById is better supported than querySelector.

querySelector is better supported than getElementsByClassName.

querySelector lets you find elements with rules that can't be expressed with getElementById and getElementsByClassName

You need to pick the appropriate tool for any given task.

(In the above, for querySelector read querySelector / querySelectorAll).

same as above where user-defined guards were used but this time with an arrow function predicate

interface A {
  member:string;
}

const check = (p: any): p is A => p.hasOwnProperty('member');

var foo: any = { member: "foobar" };
if (check(foo))
    alert(foo.member);

var c = {'a':'A', 'b':'B', 'c':'C'};
var count = 0;
for (var i in c) {
   if (c.hasOwnProperty(i)) count++;
}

alert(count);

package be.fery.annotation;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.PrePersist;

@Entity
public class User {
    @Id
    private Long id;

    @Column(name = "ADDRESS_ID")
    private Address address;

    @PrePersist
    public void doStuff(){

    }
}

And a testing class:

    package be.fery.annotation;

import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.lang.reflect.Method;

public class AnnotationIntrospector {

    public AnnotationIntrospector() {
        super();
    }

    public Annotation[] findClassAnnotation(Class<?> clazz) {
        return clazz.getAnnotations();
    }

    public Annotation[] findMethodAnnotation(Class<?> clazz, String methodName) {

        Annotation[] annotations = null;
        try {
            Class<?>[] params = null;
            Method method = clazz.getDeclaredMethod(methodName, params);
            if (method != null) {
                annotations = method.getAnnotations();
            }
        } catch (SecurityException e) {
            e.printStackTrace();
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
        }
        return annotations;
    }

    public Annotation[] findFieldAnnotation(Class<?> clazz, String fieldName) {
        Annotation[] annotations = null;
        try {
            Field field = clazz.getDeclaredField(fieldName);
            if (field != null) {
                annotations = field.getAnnotations();
            }
        } catch (SecurityException e) {
            e.printStackTrace();
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
        }
        return annotations;
    }

    /**
     * @param args
     */
    public static void main(String[] args) {
        AnnotationIntrospector ai = new AnnotationIntrospector();
        Annotation[] annotations;
        Class<User> userClass = User.class;
        String methodDoStuff = "doStuff";
        String fieldId = "id";
        String fieldAddress = "address";

        // Find class annotations
        annotations = ai.findClassAnnotation(be.fery.annotation.User.class);
        System.out.println("Annotation on class '" + userClass.getName()
                + "' are:");
        showAnnotations(annotations);

        // Find method annotations
        annotations = ai.findMethodAnnotation(User.class, methodDoStuff);
        System.out.println("Annotation on method '" + methodDoStuff + "' are:");
        showAnnotations(annotations);

        // Find field annotations
        annotations = ai.findFieldAnnotation(User.class, fieldId);
        System.out.println("Annotation on field '" + fieldId + "' are:");
        showAnnotations(annotations);

        annotations = ai.findFieldAnnotation(User.class, fieldAddress);
        System.out.println("Annotation on field '" + fieldAddress + "' are:");
        showAnnotations(annotations);

    }

    public static void showAnnotations(Annotation[] ann) {
        if (ann == null)
            return;
        for (Annotation a : ann) {
            System.out.println(a.toString());
        }
    }

}

Hope it helps...

;-)

The error message is pretty straightforward: getComputedStyle expects an Element as its first argument, and something else was passed to it.

If what you are really asking for is help with debugging your skin, you should make more of an effort to isolate the error.

Objective C:

[[NSString alloc] initWithData:nsdata encoding:NSASCIIStringEncoding];

Swift:

let str = String(data: data, encoding: .ascii)

To solve, you need to import Private Certificate (PFX).

If you don't have PFX, use OpenSSL to generate it:

• Download&Install OpenSSL

• Open command line and run:

  openssl pkcs12 -export -in public_certificate.cer -inkey server.key -out private_certificate.pfx

Than, install private_certificate.pfx (right click -> Install Certificate).

Now, your certificate does not disappear anymore and you can bind Website over SSL.

A great resource: https://blog.lextudio.com/the-whole-story-of-server-certificate-disappears-in-iis-7-7-5-8-8-5-10-0-after-installing-it-why-b66e802baa38

This workedfor me

    <groupId>jstl</groupId>
    <artifactId>jstl</artifactId>
    <version>1.2</version>

I modified the code of Nikola Milicevic a little bit so it also remove comment block if code is already commented:

on run {input, parameters}
    repeat with anInput in input
        if "/*" is in anInput then
            set input to replaceText("/*", "", input as string)
            set input to replaceText("*/", "", input as string)

            return input
            exit repeat
        end if
    end repeat
    return "/*" & (input as string) & "*/"
end run

on replaceText(find, replace, textString)
    set prevTIDs to AppleScript's text item delimiters
    set AppleScript's text item delimiters to find
    set textString to text items of textString
    set AppleScript's text item delimiters to replace
    set textString to "" & textString
    set AppleScript's text item delimiters to prevTIDs
    return textString
end replaceText

Hope this will help someone.

You missed the * in front of NgIf (like we all have, dozens of times):

<div *ngIf="answer.accepted">&#10004;</div>

Without the *, Angular sees that the ngIf directive is being applied to the div element, but since there is no * or <template> tag, it is unable to locate a template, hence the error.

If you get this error with Angular v5:

Error: StaticInjectorError[TemplateRef]:
  StaticInjectorError[TemplateRef]:
    NullInjectorError: No provider for TemplateRef!

You may have <template>...</template> in one or more of your component templates. Change/update the tag to <ng-template>...</ng-template>.

go to information_schema database there you will find 'tables' table then select it;

Mysql>use information_schema; Mysql> select table_name,engine from tables;

Basically, I think the answer is NO, there is no easy way. Use decimal or hexadecimal constants - they are simple and clear. @RoyTinkers answer is also good - use a comment.

int someHexFlag = 0x010; // 000000010000
int someDecFlag = 8;     // 000000001000

The others answers here present several useful work-a rounds, but I think they aren't better then the simple answer. C# language designers probably considered a '0b' prefix unnecessary. HEX is easy to convert to binary, and most programmers are going to have to know the DEC equivalents of 0-8 anyways.

Also, when examining values in the debugger, they will be displayed has HEX or DEC.

Following your comment posted to ceejayoz's answer, two things are messed up a litte:

1. $first is not an array, it's a string. Replace $first = $first[0] . "%" by $first .= "%". Just for simplicity. (PHP string operators)

2. The string being compared with LIKE operator should be quoted. Replace LIKE ".$first."") by LIKE '".$first."'"). (MySQL String Comparison Functions)

This is really obscure but works. 7za.exe is standalone version of 7zip and is available with install package.

# get files to be send
$logFiles = Get-ChildItem C:\Logging\*.* -Include *.log | where {$_.Name -match $yesterday} 

foreach ($logFile in $logFiles)
{
    Write-Host ("Processing " + $logFile.FullName)

    # compress file
    & ./7za.exe a -mmt=off ($logFile.FullName + ".7z") $logFile.FullName

}

Try this:

INSERT INTO `center_course_fee` (`fk_course_id`,`fk_center_code`,`course_fee`) VALUES ('69', '4920153', '6000') ON DUPLICATE KEY UPDATE `course_fee` = '6000';

I found this code working:

from distutils.dir_util import copy_tree

# copy subdirectory example
fromDirectory = "/a/b/c"
toDirectory = "/x/y/z"

copy_tree(fromDirectory, toDirectory)

Reference:

• Python 2: https://docs.python.org/2/distutils/apiref.html#distutils.dir_util.copy_tree
• Python 3: https://docs.python.org/3/distutils/apiref.html#distutils.dir_util.copy_tree

I've just wrote a tiny sample app using JQuery 1.4.1 and UI 1.8rc1. All I did was specify the constructor as:

var theDialog = $(".mydialog").dialog({
        autoOpen: false,
        resizable: false,
        modal: true,
        width:'auto'
});

I know you said that this makes it take up 100% width of the browser window but it works sweet here, tested in FF3.6, Chrome and IE8.

I'm not making AJAX calls, just manually changing the HTML of the dialog but don't think that will cause any probs. Could some other css setting be knocking this out?

The only problem with this is that it makes the width off-centre but I found this support ticket where they supply a workaround of placing the dialog('open') statement in a setTimeout to fix the problem.

Here is the contents of my head tag:

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.1/jquery.min.js"></script>
<script type="text/javascript" src="jquery-ui.min.js"></script>
<link href="jquery-ui.css" rel="stylesheet" type="text/css" />
<script type="text/javascript">
    $(function(){
        var theDialog = $(".mydialog").dialog({
            autoOpen: false,
            resizable: false,
            modal: true,
            width: 'auto'
        });

        $('#one').click(function(){
            theDialog.html('some random text').dialog('open');
        });

        $('#two').click(function(){
            theDialog.html('<ul><li>Apple</li><li>Orange</li><li>Banana</li><li>Strawberry</li><li>long text string to see if width changes</li></ul>').dialog('open');
        });

        $('#three').click(function(){
            //this is only call where off-centre is noticeable so use setTimeout
            theDialog.html('<img src="./random.gif" width="500px" height="500px" />');
            setTimeout(function(){ theDialog.dialog('open') }, 100);;
        });
     });
</script>

I downloaded the js and css for Jquery UI from http://jquery-ui.googlecode.com/files/jquery-ui-1.8rc1.zip. and the body:

<div class='mydialog'></div>
<a href='#' id='one'>test1</a>
<a href='#' id='two'>test2</a>
<a href='#' id='three'>test3</a>

Making use of the tricks in "Getting the last argument passed to a shell script" we can make a simple shell function that should work no matter how many files you want to move:

# Bash only
mvdir() { mkdir -p "${@: -1}" && mv "$@"; }

# Other shells may need to search for the last argument
mvdir() { for last; do true; done; mkdir -p "$last" && mv "$@"; }

Decision tree between ES5, ES6 and TypeScript

Do you mind having a build step?

• Yes - Use ES5
• No - keep going

Do you want to use types?

• Yes - Use TypeScript
• No - Use ES6

More Details

ES5 is the JavaScript you know and use in the browser today it is what it is and does not require a build step to transform it into something that will run in today's browsers

ES6 (also called ES2015) is the next iteration of JavaScript, but it does not run in today's browsers. There are quite a few transpilers that will export ES5 for running in browsers. It is still a dynamic (read: untyped) language.

TypeScript provides an optional typing system while pulling in features from future versions of JavaScript (ES6 and ES7).

Note: a lot of the transpilers out there (i.e. babel, TypeScript) will allow you to use features from future versions of JavaScript today and exporting code that will still run in today's browsers.

The blocksize is usually selected to maximize the "occupancy". Search on CUDA Occupancy for more information. In particular, see the CUDA Occupancy Calculator spreadsheet.

Like everybody's saying, they're pretty much entirely different.

However, if you need a scripting language for your Java application, Javascript is actually a really good choice. There are ways to get Javascript running in the JVM and you can access and manipulate Java classes pretty seamlessly once you do.

You can list breakpoints with:

info break

This will list all breakpoints. Then a breakpoint can be deleted by its corresponding number:

del 3

For example:

 (gdb) info b
 Num     Type           Disp Enb Address    What
  3      breakpoint     keep y   0x004018c3 in timeCorrect at my3.c:215
  4      breakpoint     keep y   0x004295b0 in avi_write_packet atlibavformat/avienc.c:513
 (gdb) del 3
 (gdb) info b
 Num     Type           Disp Enb Address    What
  4      breakpoint     keep y   0x004295b0 in avi_write_packet atlibavformat/avienc.c:513

Date.now() returns a unix timestamp in milliseconds.

const now = Date.now(); // Unix timestamp in milliseconds_x000D_
console.log( now );

Prior to ECMAScript5 (I.E. Internet Explorer 8 and older) you needed to construct a Date object, from which there are several ways to get a unix timestamp in milliseconds:

console.log( +new Date );_x000D_
console.log( (new Date).getTime() );_x000D_
console.log( (new Date).valueOf() );

I finally found the way to do what the OP wanted. It's as simple as:

git log --graph [branchname]

The command will display all commits that are reachable from the provided branch in the format of graph. But, you can easily filter all commits on that branch by looking at the commits graph whose * is the first character in the commit line.

For example, let's look at the excerpt of git log --graph master on cakephp GitHub repo below:

D:\Web Folder\cakephp>git log --graph master
*   commit 8314c2ff833280bbc7102cb6d4fcf62240cd3ac4
|\  Merge: c3f45e8 0459a35
| | Author: José Lorenzo Rodríguez <[email protected]>
| | Date:   Tue Aug 30 08:01:59 2016 +0200
| |
| |     Merge pull request #9367 from cakephp/fewer-allocations
| |
| |     Do fewer allocations for simple default values.
| |
| * commit 0459a35689fec80bd8dca41e31d244a126d9e15e
| | Author: Mark Story <[email protected]>
| | Date:   Mon Aug 29 22:21:16 2016 -0400
| |
| |     The action should only be defaulted when there are no patterns
| |
| |     Only default the action name when there is no default & no pattern
| |     defined.
| |
| * commit 80c123b9dbd1c1b3301ec1270adc6c07824aeb5c
| | Author: Mark Story <[email protected]>
| | Date:   Sun Aug 28 22:35:20 2016 -0400
| |
| |     Do fewer allocations for simple default values.
| |
| |     Don't allocate arrays when we are only assigning a single array key
| |     value.
| |
* |   commit c3f45e811e4b49fe27624b57c3eb8f4721a4323b
|\ \  Merge: 10e5734 43178fd
| |/  Author: Mark Story <[email protected]>
|/|   Date:   Mon Aug 29 22:15:30 2016 -0400
| |
| |       Merge pull request #9322 from cakephp/add-email-assertions
| |
| |       Add email assertions trait
| |
| * commit 43178fd55d7ef9a42706279fa275bb783063cf34
| | Author: Jad Bitar <[email protected]>
| | Date:   Mon Aug 29 17:43:29 2016 -0400
| |
| |     Fix `@since` in new files docblocks
| |

As you can see, only commits 8314c2ff833280bbc7102cb6d4fcf62240cd3ac4 and c3f45e811e4b49fe27624b57c3eb8f4721a4323b have the * being the first character in the commit lines. Those commits are from the master branch while the other four are from some other branches.

Use

runas /savecred /profile /user:Administrator whateveryouwanttorun.cmd

It will ask for the password the first time only. It will not ask for password again, unless the password is changed, etc.

I seem to recall reading this article more than once, and the answer is only close to what I need.

Usually when I think I'm going to need a DO WHILE in T-SQL it's because I'm iterating a cursor, and I'm looking largely for optimal clarity (vs. optimal speed). In T-SQL that seems to fit a WHILE TRUE / IF BREAK.

If that's the scenario that brought you here, this snippet may save you a moment. Otherwise, welcome back, me. Now I can be certain I've been here more than once. :)

DECLARE Id INT, @Title VARCHAR(50)
DECLARE Iterator CURSOR FORWARD_ONLY FOR
SELECT Id, Title FROM dbo.SourceTable
OPEN Iterator
WHILE 1=1 BEGIN
    FETCH NEXT FROM @InputTable INTO @Id, @Title
    IF @@FETCH_STATUS < 0 BREAK
    PRINT 'Do something with ' + @Title
END
CLOSE Iterator
DEALLOCATE Iterator

Unfortunately, T-SQL doesn't seem to offer a cleaner way to singly-define the loop operation, than this infinite loop.

You can try with:

route -n get default

It is not the same as GNU/Linux's route -n (or even ip route show) but is useful for checking the default route information. Also, you can check the route that packages will take to a particular host. E.g.

route -n get www.yahoo.com

The output would be similar to:

   route to: 98.137.149.56
destination: default
       mask: 128.0.0.0
    gateway: 5.5.0.1
  interface: tun0
      flags: <UP,GATEWAY,DONE,STATIC,PRCLONING>
 recvpipe  sendpipe  ssthresh  rtt,msec    rttvar  hopcount      mtu     expire
       0         0         0         0         0         0      1500         0

IMHO netstat -nr is what you need. Even MacOSX's Network utility app(*) uses the output of netstat to show routing information.

I hope this helps :)

(*) You can start Network utility with open /Applications/Utilities/Network\ Utility.app