Programs & Examples On #Ansi sql

Something no one seems to have noted yet is readability. Having…

CONVERT(SomeType,
    SomeReallyLongExpression
    + ThatMayEvenSpan
    + MultipleLines
    )

…may be easier to understand than…

CAST(SomeReallyLongExpression
    + ThatMayEvenSpan
    + MultipleLines
    AS SomeType
    )

To concatenate all the project manager names from projects that have multiple project managers write:

SELECT a.project_id,a.project_name,Stuff((SELECT N'/ ' + first_name + ', '+last_name FROM projects_v 
where a.project_id=project_id
 FOR
 XML PATH(''),TYPE).value('text()[1]','nvarchar(max)'),1,2,N''
) mgr_names
from projects_v a
group by a.project_id,a.project_name

This is what works for me.

tar -cvf my_dir.tar.gz -C /my_dir/ $(find /my_dir/ -maxdepth 1 -printf '%P ')

You could also use

tar -cvf my_dir.tar.gz -C /my_dir/ $(find /my_dir/ -mindepth 1 -maxdepth 1 -printf '%P ')

In the first command, find returns a list of files and sub-directories of my_dir. However, the directory my_dir is itself included in that list as '.' The -printf parameter removes the full path including that '.' and also all crlf However the space in the format string '%P ' of printf leaves a remnant in the list of files and sub-directories of my_dir and can be seen by a leading space in the result of the find command.

That will not be a problem for TAR but if you want to fix this, add -mindepth 1 as in the second command.

Objective-C:

NSString *str = @"test string";
NSData *data = [NSKeyedArchiver archivedDataWithRootObject:str];
NSString *thatStr = [NSKeyedUnarchiver unarchiveObjectWithData:data];

Swift:

let str = "test string"
let data = NSKeyedArchiver.archivedData(withRootObject: str)
let thatStr = NSKeyedUnarchiver.unarchiveObject(with: data) as! String

If I understand correctly you want to change the CSS style of an element by clicking an item in a ul list. Am I right?

HTML:

<div class="results" style="background-color:Red;">
</div>

 <ul class="colors-list">
     <li>Red</li>
     <li>Blue</li>
     <li>#ffee99</li>
 </ul>

jquery

$('.colors-list li').click(function(e){
    var color = $(this).text();
    $('.results').css('background-color',color);
});

Note that jquery can use addClass, removeClass and toggleClass if you want to use classes rather than inline styling. This means that you can do something like that:

$('.results').addClass('selected');

And define the 'selected' styling in the CSS.

Working example: http://jsfiddle.net/uuJmP/

You define a boolean value with default of true, and then inside an IE conditional comment, set the value to false, and use the value of this to determine whether your advanced code should run. Something like:

<script type="text/javascript">var runFancy = true;</script>
<!--[if IE]>
<script type="text/javascript">
    runFancy = false;
    //any other IE specific stuff here
</script>
<![endif]-->
<script type="text/javascript">
    if (runFancy) {
         //do your code that works with sane browsers
    }
</script>

you can use:

IF(@PreviousStartDate IS NULL OR @PreviousStartDate = '')

Simplified from use compared with my earlier answer with a bool default of non-destructive merge if existing or overwrite entirely if true rather than using an enum. It still suits my own needs without any fancier code ever being required:

using System.Collections.Generic;
using System.Linq;

public static partial class Extensions
{
    public static void Merge<K, V>(this IDictionary<K, V> target, IDictionary<K, V> source, bool overwrite = false)
    {
        source.ToList().ForEach(_ => {
            if ((!target.ContainsKey(_.Key)) || overwrite)
                target[_.Key] = _.Value;
        });
    }
}

1) Update conda

Run the anaconda prompt as administrator

conda update -n base -c defaults conda

2) Create an environment for python new version say, 3.6

conda create --name py36 python=3.6

3) Activate the new environment

conda activate py36

4) Upgrade pip

pip install --upgrade pip

5) Install tensorflow

pip install https://testpypi.python.org/packages/db/d2/876b5eedda1f81d5b5734277a155fa0894d394a7f55efa9946a818ad1190/tensorflow-0.12.1-cp36-cp36m-win_amd64.whl

If it doesn't work

If you have problem with wheel at the environment location, or pywrap_tensorflow problem,

 pip install tensorflow --upgrade --force-reinstall

Add

t1.Join();    // Wait until thread t1 finishes

after you start it, but that won't accomplish much as it's essentialy the same result as running on the main thread!

I can highly recommended reading Joe Albahari's Threading in C# free e-book, if you want to gain an understanding of threading in .NET.

Based on OP detailed needs explained in comments, a more appropriate solution exists. The OP states he wishes to add custom data in its logs with log4net, data related to requests.

Rather than wrapping each log4net call into a custom centralized log call which handles retrieving request related data (on each log call), log4net features context dictionaries for setting up custom additional data to log. Using those dictionnaries allows to position your request log data for current request at BeginRequest event, then to dismiss it at EndRequest event. Any log in between will benefit from those custom data.

And things that do not happen in a request context will not try to log request related data, eliminating the need to test for request availability. This solution matches the principle Arman McHitaryan was suggesting in his answer.

For this solution to work, you will also need some additional configuration on your log4net appenders in order for them to log your custom data.

This solution can be easily implemented as a custom log enhancement module. Here is sample code for it:

using System;
using System.Web;
using log4net;
using log4net.Core;

namespace YourNameSpace
{
    public class LogHttpModule : IHttpModule
    {
        public void Dispose()
        {
            // nothing to free
        }

        private const string _ipKey = "IP";
        private const string _urlKey = "URL";
        private const string _refererKey = "Referer";
        private const string _userAgentKey = "UserAgent";
        private const string _userNameKey = "userName";

        public void Init(HttpApplication context)
        {
            context.BeginRequest += WebAppli_BeginRequest;
            context.PostAuthenticateRequest += WebAppli_PostAuthenticateRequest;
            // All custom properties must be initialized, otherwise log4net will not get
            // them from HttpContext.
            InitValueProviders(_ipKey, _urlKey, _refererKey, _userAgentKey,
                _userNameKey);
        }

        private void InitValueProviders(params string[] valueKeys)
        {
            if (valueKeys == null)
                return;
            foreach(var key in valueKeys)
            {
                GlobalContext.Properties[key] = new HttpContextValueProvider(key);
            }
        }

        private void WebAppli_BeginRequest(object sender, EventArgs e)
        {
            var currContext = HttpContext.Current;
            currContext.Items[_ipKey] = currContext.Request.UserHostAddress;
            currContext.Items[_urlKey] = currContext.Request.Url.AbsoluteUri;
            currContext.Items[_refererKey] = currContext.Request.UrlReferrer != null ? 
                currContext.Request.UrlReferrer.AbsoluteUri : null;
            currContext.Items[_userAgentKey] = currContext.Request.UserAgent;
        }

        private void WebAppli_PostAuthenticateRequest(object sender, EventArgs e)
        {
            var currContext = HttpContext.Current;
            // log4net doc states that %identity is "extremely slow":
            // http://logging.apache.org/log4net/release/sdk/log4net.Layout.PatternLayout.html
            // So here is some custom retrieval logic for it, so bad, especialy since I
            // tend to think this is a missed copy/paste in that documentation.
            // Indeed, we can find by inspection in default properties fetch by log4net a
            // log4net:Identity property with the data, but it looks undocumented...
            currContext.Items[_userNameKey] = currContext.User.Identity.Name;
        }
    }

    // General idea coming from 
    // http://piers7.blogspot.fr/2005/12/log4net-context-problems-with-aspnet.html
    // We can not use log4net ThreadContext or LogicalThreadContext with asp.net, since
    // asp.net may switch thread while serving a request, and reset the call context
    // in the process.
    public class HttpContextValueProvider : IFixingRequired
    {
        private string _contextKey;
        public HttpContextValueProvider(string contextKey)
        {
            _contextKey = contextKey;
        }

        public override string ToString()
        {
            var currContext = HttpContext.Current;
            if (currContext == null)
                return null;
            var value = currContext.Items[_contextKey];
            if (value == null)
                return null;
            return value.ToString();
        }

        object IFixingRequired.GetFixedObject()
        {
            return ToString();
        }
    }
}

Add it to your site, IIS 7+ conf sample:

<system.webServer>
  <!-- other stuff removed ... -->
  <modules>
    <!-- other stuff removed ... -->
    <add name="LogEnhancer" type="YourNameSpace.LogHttpModule, YourAssemblyName" preCondition="managedHandler" />
    <!-- other stuff removed ... -->
  </modules>
  <!-- other stuff removed ... -->
</system.webServer>

And set up appenders to log those additional properties, sample config:

<log4net>
  <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
    <!-- other stuff removed ... -->
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date [%thread] %-5level %logger - %message - %property%newline%exception" />
    </layout>
  </appender>
  <appender name="SqlAppender" type="log4net.Appender.AdoNetAppender">
    <!-- other stuff removed ... -->
    <commandText value="INSERT INTO YourLogTable ([Date],[Thread],[Level],[Logger],[UserName],[Message],[Exception],[Ip],[Url],[Referer],[UserAgent]) VALUES (@log_date, @thread, @log_level, @logger, @userName, @message, @exception, @Ip, @Url, @Referer, @UserAgent)" />
    <!-- other parameters removed ... -->
    <parameter>
      <parameterName value="@userName" />
      <dbType value="String" />
      <size value="255" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%property{userName}" />
      </layout>
    </parameter>
    <parameter>
      <parameterName value="@Ip"/>
      <dbType value="String" />
      <size value="255" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%property{Ip}" />
      </layout>
    </parameter>
    <parameter>
      <parameterName value="@Url"/>
      <dbType value="String" />
      <size value="255" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%property{Url}" />
      </layout>
    </parameter>
    <parameter>
      <parameterName value="@Referer"/>
      <dbType value="String" />
      <size value="255" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%property{Referer}" />
      </layout>
    </parameter>
    <parameter>
      <parameterName value="@UserAgent"/>
      <dbType value="String" />
      <size value="255" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%property{UserAgent}" />
      </layout>
    </parameter>
  </appender>
  <!-- other stuff removed ... -->
</log4net>

SQL is Structured Query Language

MySQL is a relational database management system. You can submit SQL queries to the MySQL database to store, retrieve, modify or delete data.

#include <sstream> and use the fully qualified name i.e. std::stringstream ss;

Why don't you use the indexOf method of javascript arrays?

Check this out: MDN indexOf Arrays

Simply do:

carBrands.indexOf(car1);

It will return you the index (position in the array) of car1. It will return -1 if car1 was not found in the array.

http://jsfiddle.net/Fraximus/r154cd9o

Edit: Note that in the question, the requirements are to check for the same object referenced in the array, and NOT a new object. Even if the new object is identical in content to the object in the array, it is still a different object. As mentioned in the comments, objects are passed by reference in JS and the same object can exist multiple times in multiple structures.
If you want to create a new object and check if the array contains objects identical to your new one, this answer won't work (Julien's fiddle below), if you want to check for that same object's existence in the array, then this answer will work. Check out the fiddles here and in the comments.

To create a user with sudo privileges is to put the user into /etc/sudoers, or make the user a member of a group specified in /etc/sudoers. And to make it password-less is to additionally specify NOPASSWD in /etc/sudoers.

Example of /etc/sudoers:

## Allow root to run any commands anywhere
root    ALL=(ALL)       ALL

## Allows people in group wheel to run all commands
%wheel  ALL=(ALL)       ALL

## Same thing without a password
%wheel  ALL=(ALL)       NOPASSWD: ALL

And instead of fiddling with /etc/sudoers file, we can create a new file in /etc/sudoers.d/ directory since this directory is included by /etc/sudoers by default, which avoids the possibility of breaking existing sudoers file, and also eliminates the dependency on the content inside of /etc/sudoers.

To achieve above in Ansible, refer to the following:

- name: sudo without password for wheel group
  copy:
    content: '%wheel ALL=(ALL:ALL) NOPASSWD:ALL'
    dest: /etc/sudoers.d/wheel_nopasswd
    mode: 0440

You may replace %wheel with other group names like %sudoers or other user names like deployer.

If I imagined that you set android:configChanges in manifest.xml and create several directory for several language such as: values-fr OR values-nl, I could suggest this code(In Activity class):

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    Button btn = (Button) findViewById(R.id.btn);
    btn.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // change language by onclick a button
             Configuration newConfig = new Configuration();
             newConfig.locale = Locale.FRENCH;
             onConfigurationChanged(newConfig);
        }
    });
}

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);

    getBaseContext().getResources().updateConfiguration(newConfig, getBaseContext().getResources().getDisplayMetrics());
    setContentView(R.layout.main);
    setTitle(R.string.app_name);

    // Checks the active language
    if (newConfig.locale == Locale.ENGLISH) {
        Toast.makeText(this, "English", Toast.LENGTH_SHORT).show();
    } else if (newConfig.locale == Locale.FRENCH){
        Toast.makeText(this, "French", Toast.LENGTH_SHORT).show();
    }
}

I tested this code, It is correct.

A lot has been said previously, but back to the roots, in a more technical way:

1. IEnumerable is a collection of objects in memory that you can enumerate - an in-memory sequence that makes it possible to iterate through (makes it way easy for within foreach loop, though you can go with IEnumerator only). They reside in the memory as is.
2. IQueryable is an expression tree that will get translated into something else at some point with ability to enumerate over the final outcome. I guess this is what confuses most people.

They obviously have different connotations.

IQueryable represents an expression tree (a query, simply) that will be translated to something else by the underlying query provider as soon as release APIs are called, like LINQ aggregate functions (Sum, Count, etc.) or ToList[Array, Dictionary,...]. And IQueryable objects also implement IEnumerable, IEnumerable<T> so that if they represent a query the result of that query could be iterated. It means IQueryable don't have to be queries only. The right term is they are expression trees.

Now how those expressions are executed and what they turn to is all up to so called query providers (expression executors we can think them of).

In the Entity Framework world (which is that mystical underlying data source provider, or the query provider) IQueryable expressions are translated into native T-SQL queries. Nhibernate does similar things with them. You can write your own one following the concepts pretty well described in LINQ: Building an IQueryable Provider link, for example, and you might want to have a custom querying API for your product store provider service.

So basically, IQueryable objects are getting constructed all the way long until we explicitly release them and tell the system to rewrite them into SQL or whatever and send down the execution chain for onward processing.

As if to deferred execution it's a LINQ feature to hold up the expression tree scheme in the memory and send it into the execution only on demand, whenever certain APIs are called against the sequence (the same Count, ToList, etc.).

The proper usage of both heavily depends on the tasks you're facing for the specific case. For the well-known repository pattern I personally opt for returning IList, that is IEnumerable over Lists (indexers and the like). So it is my advice to use IQueryable only within repositories and IEnumerable anywhere else in the code. Not saying about the testability concerns that IQueryable breaks down and ruins the separation of concerns principle. If you return an expression from within repositories consumers may play with the persistence layer as they would wish.

A little addition to the mess :) (from a discussion in the comments)) None of them are objects in memory since they're not real types per se, they're markers of a type - if you want to go that deep. But it makes sense (and that's why even MSDN put it this way) to think of IEnumerables as in-memory collections whereas IQueryables as expression trees. The point is that the IQueryable interface inherits the IEnumerable interface so that if it represents a query, the results of that query can be enumerated. Enumeration causes the expression tree associated with an IQueryable object to be executed. So, in fact, you can't really call any IEnumerable member without having the object in the memory. It will get in there if you do, anyways, if it's not empty. IQueryables are just queries, not the data.

Worst case will arise when both n and m are consecutive Fibonacci numbers.

gcd(Fn,Fn-1)=gcd(Fn-1,Fn-2)=?=gcd(F1,F0)=1 and nth Fibonacci number is 1.618^n, where 1.618 is the Golden ratio.

So, to find gcd(n,m), number of recursive calls will be T(logn).

- What is @objc inference? What is going on?

In Swift 3, the compiler infers @objc in a number of places so you wouldn't have to. In other words, it makes sure to add @objc for you!

In Swift 4, the compiler no longer does this (as much). You now must add @objc explicitly.

By default, if you have a pre-Swift 4 project, you will get warnings about this. In a Swift 4 project, you will get build errors. This is controlled via the SWIFT_SWIFT3_OBJC_INFERENCE build setting. In a pre-Swift 4 project this is set to On. I would recommend to set this to Default (or Off), which is now the default option on a new project.

It will take some time to convert everything, but since it's the default for Swift 4, it's worth doing it.

- How do I stop the compiler warnings/errors?

There are two ways to go about converting your code so the compiler doesn't complain.

One is to use @objc on each function or variable that needs to be exposed to the Objective-C runtime:

@objc func foo() {

}

The other is to use @objcMembers by a Class declaration. This makes sure to automatically add @objc to ALL the functions and variables in the class. This is the easy way, but it has a cost, for example, it can increase the size of your application by exposing functions that did not need to be exposed.

@objcMembers class Test {

}

- What is @objc and why is it necessary?

If you introduce new methods or variables to a Swift class, marking them as @objc exposes them to the Objective-C runtime. This is necessary when you have Objective-C code that uses your Swift class, or, if you are using Objective-C-type features like Selectors. For example, the target-action pattern: button.addTarget(self, action:#selector(didPressButton), for:.touchUpInside)

- Why would I not mark everything @objc?

There are negatives that come with marking something as @objc:

• Increased application binary size
• No function overloading

Please keep in mind that this is a very high-level summary and that it is more complicated than I wrote. I would recommend reading the actual proposal for more information.

Sources:

• https://github.com/apple/swift-evolution/blob/master/proposals/0160-objc-inference.md
• https://developer.apple.com/library/content/documentation/Swift/Conceptual/BuildingCocoaApps/WritingSwiftClassesWithObjective-CBehavior.html#//apple_ref/doc/uid/TP40014216-CH5-ID86

1. Solution Explorer
2. Your app Right Clik
3. Propatis
4. Security
5. Unchek (Enable ClickOnce Security Settings) Thats Solve..... __:)
6. https://i.stack.imgur.com/62nKZ.png See

[enter image description here]

A solution supporting all possible notations, including the scientific notation with both uppercase and lowercase exponents (e.g., 12.00e4):

if (( $(bc -l <<< "${value1/e/E} < ${value2/e/E}") ))
then
    echo "$value1 is below $value2"
fi 

Since, String is immutable in Java, so the left and right String have to be copied into the new String for every pair of concatenation. So, better go for the placeholder.

maybe you forget to add parameter dataType:'json' in your $.ajax

$.ajax({
   type: "POST",
   dataType: "json",
   url: url,
   data: { get_member: id },
   success: function( response ) 
   { 
     //some action here
   },
   error: function( error )
   {
     alert( error );
   }
});

Try using the ISO string

var isodate = new Date().toISOString()

See also: method definition at MDN.

JPanel p=new JPanel();  
GridBagLayout layout=new GridBagLayout(); 
p.setLayout(layout); 
GridBagConstraints gbc = new GridBagConstraints();
gbc.fill=GridBagConstraints.HORIZONTAL; 
gbc.gridx=0;   
gbc.gridy=0;   
p2.add("",gbc);

As others have mentioned, this occurs when you have multiple copies of the same class in your build path - including bin/ in your classpath is one way to guarantee this problem.

For me, this occurred when I had added android-support-v4.jar to my libs/ folder, and somehow eclipse added a second copy to bin/classes/android-support-v4.jar.

Deleting the extra copy in bin/classes solved the problem - unsure why Eclipse made a copy there.

You can test for this with

grep -r YourOffendingClassName YourApp | grep jar

use def variable, when you want to compare any String. Use below code for that type of comparison.

def variable name = null

SQL query give you some return. Use function with return type def.

def functionname(def variablename){

return variable name

}

if ("$variable name" == "true"){

}

(EDIT: As pointed out by the OP, the using a java.net.Authenticator is required too. I'm updating my answer accordingly for the sake of correctness.)

(EDIT#2: As pointed out in another answer, in JDK 8 it's required to remove basic auth scheme from jdk.http.auth.tunneling.disabledSchemes property)

For authentication, use java.net.Authenticator to set proxy's configuration and set the system properties http.proxyUser and http.proxyPassword.

final String authUser = "user";
final String authPassword = "password";
Authenticator.setDefault(
  new Authenticator() {
    @Override
    public PasswordAuthentication getPasswordAuthentication() {
      return new PasswordAuthentication(authUser, authPassword.toCharArray());
    }
  }
);

System.setProperty("http.proxyUser", authUser);
System.setProperty("http.proxyPassword", authPassword);

System.setProperty("jdk.http.auth.tunneling.disabledSchemes", "");

You have the :nth-child() pseudo-class:

table tr:nth-child(odd) td{
    ...
}
table tr:nth-child(even) td{
    ...
}

In the early days of :nth-child() its browser support was kind of poor. That's why setting class="odd" became such a common technique. In late 2013 I'm glad to say that IE6 and IE7 are finally dead (or sick enough to stop caring) but IE8 is still around — thankfully, it's the only exception.

I end up here while googling for the problem with not printable character. I use MySQL UTF-8 general_ci and deal with polish language. For problematic strings I have to procced as follows:

text=text.replace('\xc2\xa0', ' ')

It is just fast workaround and you probablly should try something with right encoding setup.

*SQL solution

Suppose you have a review table which has primary key "id".

SELECT * FROM review WHERE id = 1555
UNION ALL
SELECT * FROM review WHERE NOT EXISTS ( SELECT * FROM review where id = 1555 ) AND id = 1

if table doesn't have review with 1555 id then this query will provide a review of id 1.

You can also use RequestDispacher and pass on the data along with the jsp page you want.

request.setAttribute("MyData", data);
RequestDispatcher rd = request.getRequestDispatcher("page.jsp");
rd.forward(request, response);

It's also possible to avoid specifying the properties altogether.

#box {
  transition: 0.4s;
  position: absolute;
  border: 1px solid darkred;
  bottom: 20px; left: 20px;
  width: 200px; height: 200px;
  opacity: 0;
}

#box.on {
  opacity: 1;
  height: 300px;
  width: 500px;
 }

Well, you can create your own type - but a DateTime always has a full date and time. You can't even have "just a date" using DateTime - the closest you can come is to have a DateTime at midnight.

You could always ignore the year though - or take the current year:

// Consider whether you want DateTime.UtcNow.Year instead
DateTime value = new DateTime(DateTime.Now.Year, month, day);

To create your own type, you could always just embed a DateTime within a struct, and proxy on calls like AddDays etc:

public struct MonthDay : IEquatable<MonthDay>
{
    private readonly DateTime dateTime;

    public MonthDay(int month, int day)
    {
        dateTime = new DateTime(2000, month, day);
    }

    public MonthDay AddDays(int days)
    {
        DateTime added = dateTime.AddDays(days);
        return new MonthDay(added.Month, added.Day);
    }

    // TODO: Implement interfaces, equality etc
}

Note that the year you choose affects the behaviour of the type - should Feb 29th be a valid month/day value or not? It depends on the year...

Personally I don't think I would create a type for this - instead I'd have a method to return "the next time the program should be run".

From my experiences the first few frames that are captured when using:

frame = cvQueryFrame( capture );

Tend to be blank. You may want to wait a short while(about 3 seconds) and then try to capture the image.

If you just run openssl in your terminal it should present the openSSL shell. My first clue to knowing that I didn't have mode_ssl was when I got the following error after adding SSLEngine on in my virtualhost file:

Invalid command 'SSLEngine', perhaps misspelled or defined by a module not included in the server configuration

In centos I just had to install it via yum install mod_ssl

var arr = [1,2,2,3,4,5,5,5,6,7,7,8,9,10,10];

function squash(arr){
    var tmp = [];
    for(var i = 0; i < arr.length; i++){
        if(tmp.indexOf(arr[i]) == -1){
        tmp.push(arr[i]);
        }
    }
    return tmp;
}

console.log(squash(arr));

Working Example http://jsfiddle.net/7Utn7/

Compatibility for indexOf on old browsers

I don't believe that there is a formal limit here, and I'm pretty sure there isn't any hard limit specified in the RFC either, as you found.

I think that some pretty common limitations for subject lines in general (not just e-mail) are:

• 80 Characters
• 128 Characters
• 256 Characters

Obviously, you want to come up with something that is reasonable. If you're writing an e-mail client, you may want to go with something like 256 characters, and obviously test thoroughly against big commercial servers out there to make sure they serve your mail correctly.

Hope this helps!

Since you are using JSON.NET, personally I would go with serialization so that you can have Intellisense support for your object. You'll need a class that represents your JSON structure. You can build this by hand, or you can use something like json2csharp to generate it for you:

e.g.

public class Person
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
}

public class RootObject
{
    public List<Person> People { get; set; }
}

Then, you can simply call JsonConvert's methods to deserialize the JSON into an object:

RootObject instance = JsonConvert.Deserialize<RootObject>(json);

Then you have Intellisense:

var firstName = instance.People[0].FirstName;
var lastName = instance.People[0].LastName;

In a maven project create a file src/main/resources/application.yml with the following content:

spring.profiles: integration
# use local or embedded mongodb at localhost:27017
---
spring.profiles: production
spring.data.mongodb.uri: mongodb://<user>:<passwd>@<host>:<port>/<dbname>

Spring Boot will automatically use this file to configure your application. Then you can start your spring boot application either with the integration profile (and use your local MongoDB)

java -jar -Dspring.profiles.active=integration your-app.jar

or with the production profile (and use your production MongoDB)

java -jar -Dspring.profiles.active=production your-app.jar

There is a nice open source CodeFormatter plugin, which(along reindenting) can beautify dirty code even all of it is in single line.

function negative(n) {
  return n < 0;
}

Your regex should work fine for string numbers, but this is probably faster. (edited from comment in similar answer above, conversion with +n is not needed.)

I appreciate this is an old post, but it may be useful for people to know that the Azure Migration Wizard (available on Codeplex - can't link to is as Codeplex is at the moment I'm typing this) will do this easily.

Also possible like this

<button type="submit" class="icon-search icon-large"></button>

You can easily create your own serializer

var car = new Car() { Name = "Ford", Owner = "John Smith" };
string json = Serialize(car);

string Serialize<T>(T o)
{
    var attr = o.GetType().GetCustomAttribute(typeof(JsonObjectAttribute)) as JsonObjectAttribute;

    var jv = JValue.FromObject(o);

    return new JObject(new JProperty(attr.Title, jv)).ToString();
}

You need to use ng-disabled directive

<input data-ng-model="userInf.username" 
       class="span12 editEmail" 
       type="text" 
       placeholder="[email protected]" 
       pattern="[^@]+@[^@]+\.[a-zA-Z]{2,6}" 
       required 
       ng-disabled="<expression to disable>" />

Objects do not necessarily have names in Python, so you can't get the name.

It's not unusual for objects to have a __name__ attribute in those cases that they do have a name, but this is not a part of standard Python, and most built in types do not have one.

When you create a variable, like the x, y, z above then those names just act as "pointers" or "references" to the objects. The object itself does not know what name you are using for it, and you can not easily (if at all) get the names of all references to that object.

Update: However, functions do have a __name__ (unless they are lambdas) so, in that case you can do:

dict([(t.__name__, t) for t in fun_list])

I would recommend reviewing this page on How to Write Go Code

It documents both how to structure your project in a go build friendly way, and also how to write tests. Tests do not need to be a cmd using the main package. They can simply be TestX named functions as part of each package, and then go test will discover them.

The structure suggested in that link in your question is a bit outdated, now with the release of Go 1. You no longer would need to place a pkg directory under src. The only 3 spec-related directories are the 3 in the root of your GOPATH: bin, pkg, src . Underneath src, you can simply place your project mypack, and underneath that is all of your .go files including the mypack_test.go

go build will then build into the root level pkg and bin.

So your GOPATH might look like this:

~/projects/
    bin/
    pkg/
    src/
      mypack/
        foo.go
        bar.go
        mypack_test.go

export GOPATH=$HOME/projects

$ go build mypack
$ go test mypack

Update: as of >= Go 1.11, the Module system is now a standard part of the tooling and the GOPATH concept is close to becoming obsolete.

The equivalent would be class SortedDictionary<TKey, TValue> in the System.Collections.Generic namespace.

If you don't care about the order the class Dictionary<TKey, TValue> in the System.Collections.Generic namespace would probably be sufficient.

Use the axis argument:

>> numpy.sum(a, axis=0)
  array([18, 22, 26])

Reference:https://docs.microsoft.com/en-us/sql/t-sql/functions/newid-transact-sql?view=sql-server-2017

-- Creating a table using NEWID for uniqueidentifier data type.

CREATE TABLE cust  
(  
 CustomerID uniqueidentifier NOT NULL  
   DEFAULT newid(),  
 Company varchar(30) NOT NULL,  
 ContactName varchar(60) NOT NULL,   
 Address varchar(30) NOT NULL,   
 City varchar(30) NOT NULL,  
 StateProvince varchar(10) NULL,  
 PostalCode varchar(10) NOT NULL,   
 CountryRegion varchar(20) NOT NULL,   
 Telephone varchar(15) NOT NULL,  
 Fax varchar(15) NULL  
);  
GO  
-- Inserting 5 rows into cust table.  
INSERT cust  
(CustomerID, Company, ContactName, Address, City, StateProvince,   
 PostalCode, CountryRegion, Telephone, Fax)  
VALUES  
 (NEWID(), 'Wartian Herkku', 'Pirkko Koskitalo', 'Torikatu 38', 'Oulu', NULL,  
 '90110', 'Finland', '981-443655', '981-443655')  
,(NEWID(), 'Wellington Importadora', 'Paula Parente', 'Rua do Mercado, 12', 'Resende', 'SP',  
 '08737-363', 'Brasil', '(14) 555-8122', '')  
,(NEWID(), 'Cactus Comidas para Ilevar', 'Patricio Simpson', 'Cerrito 333', 'Buenos Aires', NULL,   
 '1010', 'Argentina', '(1) 135-5555', '(1) 135-4892')  
,(NEWID(), 'Ernst Handel', 'Roland Mendel', 'Kirchgasse 6', 'Graz', NULL,  
 '8010', 'Austria', '7675-3425', '7675-3426')  
,(NEWID(), 'Maison Dewey', 'Catherine Dewey', 'Rue Joseph-Bens 532', 'Bruxelles', NULL,  
 'B-1180', 'Belgium', '(02) 201 24 67', '(02) 201 24 68');  
GO

Comment This Line in gradle.properties

android.useAndroidX=true

None of the above was suitable, without calling session_start() in all php files that depend on $Session variables they will not be included. The Notice is so annoying and quickly fill up the Error_log. The only solution that I can find that works is this....

    error_reporting(E_ALL ^ E_NOTICE);
    session_start();

A Bad fix , but it works.

I found following way which can be used if you KNOW name of lock

select IS_USED_LOCK('lockname');

however i not found any info about how to list all names.

From http://www.programmersheaven.com/download/49349/download.aspx

private static <K, V> Map<K, V> sortByValue(Map<K, V> map) {
    List<Entry<K, V>> list = new LinkedList<>(map.entrySet());
    Collections.sort(list, new Comparator<Object>() {
        @SuppressWarnings("unchecked")
        public int compare(Object o1, Object o2) {
            return ((Comparable<V>) ((Map.Entry<K, V>) (o1)).getValue()).compareTo(((Map.Entry<K, V>) (o2)).getValue());
        }
    });

    Map<K, V> result = new LinkedHashMap<>();
    for (Iterator<Entry<K, V>> it = list.iterator(); it.hasNext();) {
        Map.Entry<K, V> entry = (Map.Entry<K, V>) it.next();
        result.put(entry.getKey(), entry.getValue());
    }

    return result;
}

This site might help you out with all of that:

http://herz-fischler.ca/MATLAB/section15.html

This is the only thing I've found for JavaScript formatting in Dreamweaver. Not many options, but it seems to work well.

JavaScript source format extension for dreamweaver: Adobe CFusion

I had a problem like this whereby I had specified the width of my Window, but had the height set to Auto. The child DockPanel had it's VerticalAlignment set to Top and the Window had it's VerticalContentAlignment set to Top, yet the Window would still be much taller than the contents.

Using Snoop, I discovered that the ContentPresenter within the Window (part of the Window, not something I had put there) has it's VerticalAlignment set to Stretch and can't be changed without retemplating the entire Window!

After a lot of frustration, I discovered the SizeToContent property - you can use this to specify whether you want the Window to size vertically, horizontally or both, according to the size of the contents - everything is sizing nicely now, I just can't believe it took me so long to find that property!

You can use this syntax:

#!/bin/bash

echo " Write in your age: "
read age

if [[ "$age" -le 7 || "$age" -ge 65 ]] ; then
    echo " You can walk in for free "
elif [[ "$age" -gt 7 && "$age" -lt 65 ]] ; then
    echo " You have to pay for ticket "
fi

You can use JSONPath

Doing something like this:

results = JSONPath(null, TestObj, "$..[?(@.id=='A')]")

Note that JSONPath returns an array of results

(I have not tested the expression "$..[?(@.id=='A')]" btw. Maybe it needs to be fine-tuned with the help of a browser console)

Use this code to create suitable parameter from your type:

private SqlParameter GenerateTypedParameter(string name, object typedParameter)
{
    DataTable dt = new DataTable();

    var properties = typedParameter.GetType().GetProperties().ToList();
    properties.ForEach(p =>
    {
        dt.Columns.Add(p.Name, Nullable.GetUnderlyingType(p.PropertyType) ?? p.PropertyType);
    });
    var row = dt.NewRow();
    properties.ForEach(p => { row[p.Name] = (p.GetValue(typedParameter) ?? DBNull.Value); });
    dt.Rows.Add(row);

    return new SqlParameter
    {
        Direction = ParameterDirection.Input,
        ParameterName = name,
        Value = dt,
        SqlDbType = SqlDbType.Structured
    };
}

The way I'm doing it now is basically like this:

The HTML:

<textarea id="myText">
    Lorem ipsum...
</textarea>
<button onclick="sendMail(); return false">Send</button>

The Javascript:

function sendMail() {
    var link = "mailto:[email protected]"
             + "[email protected]"
             + "&subject=" + encodeURIComponent("This is my subject")
             + "&body=" + encodeURIComponent(document.getElementById('myText').value)
    ;
    
    window.location.href = link;
}

This, surprisingly, works rather well. The only problem is that if the body is particularly long (somewhere over 2000 characters), then it just opens a new email but there's no information in it. I suspect that it'd be to do with the maximum length of the URL being exceeded.

This answer will cover most of the scenario. I can across this situation when user try to copy paste the phone number

  $('#help_number').keyup(function(){
    $(this).val().match(/\d+/g).join("")
  });

Explanation:

str= "34%^gd 5-67 6-6ds"

str.match(/\d+/g)

It will give a array of string as output >> ["34", "56766"]

str.match(/\d+/g).join("")

join will convert and concatenate that array data into single string

output >> "3456766"

In my example I need the output as 209-356-6788 so I used replace

  $('#help_number').keyup(function(){
    $(this).val($(this).val().match(/\d+/g).join("").replace(/(\d{3})\-?(\d{3})\-?(\d{4})/,'$1-$2-$3'))
  });

If you wish to create a pdf from php, pdflib will help you (as some others suggested).

Else, if you want to convert an HTML page to PDF via PHP, you'll find a little trouble outta here.. For 3 years I've been trying to do it as best as I can.

So, the options I know are:

DOMPDF : php class that wraps the html and builds the pdf. Works good, customizable (if you know php), based on pdflib, if I remember right it takes even some CSS. Bad news: slow when the html is big or complex.

HTML2PS: same as DOMPDF, but this one converts first to a .ps (ghostscript) file, then, to whatever format you need (pdf, jpg, png). For me is little better than dompdf, but has the same speed problem.. but, better compatibility with CSS.

Those two are php classes, but if you can install some software on the server, and access it throught passthru() or system(), give a look to these too:

wkhtmltopdf: based on webkit (safari's wrapper), is really fast and powerful.. seems like this is the best one (atm) for converting html pages to pdf on the fly; taking only 2 seconds for a 3 page xHTML document with CSS2. It is a recent project, anyway, the google.code page is often updated.

htmldoc : This one is a tank, it never really stops/crashes.. the project looks dead since 2007, but anyway if you don't need CSS compatibility this can be nice for you.

The easiest way is to use LINQ's Union method:

var aUb = A.Union(B).ToList();

<!DOCTYPE html>
<html>
<head>
<title>set caret position</title>
<script type="application/javascript">
//<![CDATA[
window.onload = function ()
{
 setCaret(document.getElementById('input1'), 13, 13)
}

function setCaret(el, st, end)
{
 if (el.setSelectionRange)
 {
  el.focus();
  el.setSelectionRange(st, end);
 }
 else
 {
  if (el.createTextRange)
  {
   range = el.createTextRange();
   range.collapse(true);
   range.moveEnd('character', end);
   range.moveStart('character', st);
   range.select();
  }
 }
}
//]]>
</script>
</head>
<body>

<textarea id="input1" name="input1" rows="10" cols="30">Happy kittens dancing</textarea>

<p>&nbsp;</p>

</body>
</html>

A more elegant and simple solution is to use

git stash

It will return to the most resent local version of the branch and also save your changes in stash, so if you like to undo this action do:

git stash apply

Let's assume ], is the character where we wanted to break at

1. Open notePad++
2. Open Find window Ctrl+F
3. Switch to Replace Tab
4. Choose Search Mode to Extended
5. Type ], in Find What field
6. Type \nin Replace with field
7. Hit Replace All
8. Boom

If you think your volume is a "network drive", it will be easier. To edit the file located in this drive, you just need to turn on another machine and connect to this network drive, then edit the file like normal.

How to do that purely with docker (without FTP/SSH ...)?

1. Run a container that has an editor (VI, Emacs). Search Docker hub for "alpine vim"

Example:

docker run -d --name shared_vim_editor \
 -v <your_volume>:/home/developer/workspace \
jare/vim-bundle:latest

2. Run the interactive command:

docker exec -it -u root shared_vim_editor /bin/bash

Hope this helps.

Laravel has inbuilt support for multiple database systems, you need to provide connection details in config/database.php file

return [
    'default' => env('DB_CONNECTION', 'mysql'),

    'connections' => [
        'mysql' => [
            'driver' => 'mysql',
            'host' => env('DB_HOST', '127.0.0.1'),
            'port' => env('DB_PORT', '3306'),
            'database' => env('DB_DATABASE', 'forge'),
            'username' => env('DB_USERNAME', 'forge'),
            'password' => env('DB_PASSWORD', ''),
            'charset' => 'utf8',
            'collation' => 'utf8_unicode_ci',
            'prefix' => '',
            'strict' => false,
            'engine' => null,
        ],
'mysqlOne' => [
            'driver' => 'mysql',
            'host' => env('DB_HOST_ONE', '127.0.0.1'),
            'port' => env('DB_PORT', '3306'),
            'database' => env('DB_DATABASE_ONE', 'forge'),
            'username' => env('DB_USERNAME_ONE', 'forge'),
            'password' => env('DB_PASSWORD_ONE', ''),
            'charset' => 'utf8',
            'collation' => 'utf8_unicode_ci',
            'prefix' => '',
            'strict' => false,
            'engine' => null,
        ],
];

Once you have this you can create two base model class for each connection and define the connection name in those models

//BaseModel.php
protected $connection = 'mysql';

//BaseModelOne.php
protected $connection = 'mysqlOne';

You can extend these models to create more models for tables in each DB.

To answer the question in the title, a direct way to tell if a variable is a scalar is to try to convert it to a float. If you get TypeError, it's not.

N = [1, 2, 3]
try:
    float(N)
except TypeError:
    print('it is not a scalar')
else:
    print('it is a scalar')

you can also use:

<td style="visibility:hidden;">
or
<td style="visibility:collapse;">

The difference between them that "hidden" hides the cell but it holds the space but with "collapse" the space is not held like display:none. This is significant when hidding a whole column or row.

1. Go to the Graph API Explorer
2. Choose your app from the dropdown menu
3. Click "Get Access Token"
4. Choose the manage_pages permission (you may need the user_events permission too, not sure)
5. Now access the me/accounts connection and copy your page's access_token
6. Click on your page's id
7. Add the page's access_token to the GET fields
8. Call the connection you want (e.g.: PAGE_ID/events)

Basically there's a program to accomplish that, called "mail". The subject of the email can be specified with a -s and a list of address with -t. You can write the text on your own with the echo command:

echo "This will go into the body of the mail." | mail -s "Hello world" [email protected]

or get it from other files too:

mail -s "Hello world" [email protected] < /home/calvin/application.log

mail doesn't support the sending of attachments, but Mutt does:

echo "Sending an attachment." | mutt -a file.zip -s "attachment" [email protected]

Note that Mutt's much more complete than mail. You can find better explanation here

PS: thanks to @slhck who pointed out that my previous answer was awful. ;)

For Dart check "Line length" property in Settings.

See String formatting in C# for some example uses of String.Format

Actually a better example of formatting int

String.Format("{0:00000}", 15);          // "00015"

or use String Interpolation:

$"{15:00000}";                           // "00015"

You have extra brackets in Hours property;

public  object Hours { get; set; }}

First of all, don't use char* or char[N]. Use std::string, then everything else becomes so easy!

Examples,

std::string s = "Hello";
std::string greet = s + " World"; //concatenation easy!

Easy, isn't it?

Now if you need char const * for some reason, such as when you want to pass to some function, then you can do this:

some_c_api(s.c_str(), s.size()); 

assuming this function is declared as:

some_c_api(char const *input, size_t length);

Explore std::string yourself starting from here:

• Documentation of std::string

Hope that helps.

the time(NULL) function will return the number of seconds elapsed since 01/01/1970 at 00:00. And because, that function is called at different time in your program, it will always be different Time in C++

In my experience, in an armeabi-v7a mobile, when both armeabi and armeabi-v7a directories are present in the apk, the .so files in armeabi directory won't be linked, although the .so files in armeabi WILL be linked in the same armeabi-v7a mobile, if armeabi-v7a is not present.

A new option is Jexus Manager for IIS Express,

https://blog.lextudio.com/2014/10/jexus-manager-for-iis-express/

It is just the management tool you know how to use.

What you're using here are not arrays, but lists (of lists).

If you want multidimensional arrays in Python, you can use Numpy arrays. You'd need to know the shape in advance.

For example:

 import numpy as np
 arr = np.empty((3, 2), dtype=object)
 arr[0, 1] = 'abc'

You need to make TestGetMethod async too and attach await in front of GetIdList(); will unwrap the task to List<int>, So if your helper function is returning Task make sure you have await as you are calling the function async too.

public Task<List<int>> TestGetMethod()
{
    return GetIdList();
}    

async Task<List<int>> GetIdList()
{
    using (HttpClient proxy = new HttpClient())
    {
        string response = await proxy.GetStringAsync("www.test.com");
        List<int> idList = JsonConvert.DeserializeObject<List<int>>();
        return idList;
    }
}

Another option

public async void TestGetMethod(List<int> results)
{
    results = await GetIdList(); // await will unwrap the List<int>
}

Because your question is phrased regarding your error message and not whatever your function is trying to accomplish, I will address the error.

- is the 'binary operator' your error is referencing, and either CurrentDay or MA (or both) are non-numeric.

A binary operation is a calculation that takes two values (operands) and produces another value (see wikipedia for more). + is one such operator: "1 + 1" takes two operands (1 and 1) and produces another value (2). Note that the produced value isn't necessarily different from the operands (e.g., 1 + 0 = 1).

R only knows how to apply + (and other binary operators, such as -) to numeric arguments:

> 1 + 1
[1] 2
> 1 + 'one'
Error in 1 + "one" : non-numeric argument to binary operator

When you see that error message, it means that you are (or the function you're calling is) trying to perform a binary operation with something that isn't a number.

EDIT:

Your error lies in the use of [ instead of [[. Because Day is a list, subsetting with [ will return a list, not a numeric vector. [[, however, returns an object of the class of the item contained in the list:

> Day <- Transaction(1, 2)["b"]
> class(Day)
[1] "list"
> Day + 1
Error in Day + 1 : non-numeric argument to binary operator

> Day2 <- Transaction(1, 2)[["b"]]
> class(Day2)
[1] "numeric"
> Day2 + 1
[1] 3

Transaction, as you've defined it, returns a list of two vectors. Above, Day is a list contain one vector. Day2, however, is simply a vector.

Wrap your all statements in !IsPostBack condition on page load.

protected void Page_Load(object sender, EventArgs e)
{
   if(!IsPostBack)
   {
      // all statements
   }
}

This will fix your issue.

If you use Rails, Use classify. It handles edge cases well.

"app_user".classify # => AppUser
"user_links".classify   # => UserLink

Note:

This answer is specific to the description given in the question(it is not specific to the question title). If one is trying to convert a string to camel-case they should use Sergio's answer. The questioner states that he wants to convert app_user to AppUser (not App_user), hence this answer..

1. Open a command prompt as an Administrator.

2. Enter slmgr /upk and wait for this to complete. This will uninstall the current product key from Windows and put it into an unlicensed state.

3. Enter slmgr /cpky and wait for this to complete. This will remove the product key from the registry if it's still there.

4. Enter slmgr /rearm and wait for this to complete. This is to reset the Windows activation timers so the new users will be prompted to activate Windows when they put in the key.

This should put the system back to a pre-key state.

Hope this helps you out!

On Django 1.9, I tried django-admin runserver and got the same error, but when I used python manage.py runserver I got the intended result. This may solve this error for a lot of people!

There is no defined maximum size for HTTP POST requests. If you notice such a limit then it's an arbitrary limitation of your HTTP Server/Client.

You might get a better answer if you tell how big the XML is.

I saw a presentation on mongodb yesterday. I can definitely say that setup was "simple", as simple as unpacking it and firing it up. Done.

I believe that both mongodb and cassandra will run on virtually any regular linux hardware so you should not find to much barrier in that area.

I think in this case, at the end of the day, it will come down to which do you personally feel more comfortable with and which has a toolset that you prefer. As far as the presentation on mongodb, the presenter indicated that the toolset for mongodb was pretty light and that there werent many (they said any really) tools similar to whats available for MySQL. This was of course their experience so YMMV. One thing that I did like about mongodb was that there seemed to be lots of language support for it (Python, and .NET being the two that I primarily use).

The list of sites using mongodb is pretty impressive, and I know that twitter just switched to using cassandra.

(My answer is partially based on that from Yoank, and partially on a comment by Justin Time on another question.)

cout << endl << "Press <Enter> to continue...";
cin.ignore(numeric_limits<streamsize>::max(), '\n');
cin.get();

You can use select ... into ... to create and populate a temp table and then query the temp table to return the result.

select *
into #TempTable
from YourTable

select *
from #TempTable

Try this:

DateFormat.parse(String)

To install IMAP on PHP 7.0.32 on Ubuntu 16.04. Go to the given link and based on your area select link. In my case, I select a link from the Asia section. Then a file will be downloaded. just click on the file to install IMAP .Then restart apache

https://packages.ubuntu.com/xenial/all/php-imap/download.

to check if IMAP is installed check phpinfo file.incase of successful installation IMAP c-Client Version 2007f will be shown.

I had the same issue, and spent quite a bit of time trying to track down the solution. I had Anonymous Authentication set up at two different levels with two different users. Make sure that you're not overwriting your set up at a lower level.

Based on previous answers, here are reusable "procedures" and a usage example for calculating the elapsed time:

@echo off
setlocal

set starttime=%TIME%
echo Start Time: %starttime%

REM ---------------------------------------------
REM --- PUT THE CODE YOU WANT TO MEASURE HERE ---
REM ---------------------------------------------

set endtime=%TIME%
echo End Time: %endtime%
call :elapsed_time %starttime% %endtime% duration
echo Duration: %duration%

endlocal
echo on & goto :eof

REM --- HELPER PROCEDURES ---

:time_to_centiseconds
:: %~1 - time
:: %~2 - centiseconds output variable
setlocal
set _time=%~1
for /F "tokens=1-4 delims=:.," %%a in ("%_time%") do (
   set /A "_result=(((%%a*60)+1%%b %% 100)*60+1%%c %% 100)*100+1%%d %% 100"
)
endlocal & set %~2=%_result%
goto :eof

:centiseconds_to_time
:: %~1 - centiseconds
:: %~2 - time output variable
setlocal
set _centiseconds=%~1
rem now break the centiseconds down to hors, minutes, seconds and the remaining centiseconds
set /A _h=%_centiseconds% / 360000
set /A _m=(%_centiseconds% - %_h%*360000) / 6000
set /A _s=(%_centiseconds% - %_h%*360000 - %_m%*6000) / 100
set /A _hs=(%_centiseconds% - %_h%*360000 - %_m%*6000 - %_s%*100)
rem some formatting
if %_h% LSS 10 set _h=0%_h%
if %_m% LSS 10 set _m=0%_m%
if %_s% LSS 10 set _s=0%_s%
if %_hs% LSS 10 set _hs=0%_hs%
set _result=%_h%:%_m%:%_s%.%_hs%
endlocal & set %~2=%_result%
goto :eof

:elapsed_time
:: %~1 - time1 - start time
:: %~2 - time2 - end time
:: %~3 - elapsed time output
setlocal
set _time1=%~1
set _time2=%~2
call :time_to_centiseconds %_time1% _centi1
call :time_to_centiseconds %_time2% _centi2
set /A _duration=%_centi2%-%_centi1%
call :centiseconds_to_time %_duration% _result
endlocal & set %~3=%_result%
goto :eof

You should have a table with the list of emails to check. Then do this query:

SELECT E.Email, CASE WHEN U.Email IS NULL THEN 'Not Exists' ELSE 'Exists' END Status
FROM EmailsToCheck E
LEFT JOIN (SELECT DISTINCT Email FROM Users) U
ON E.Email = U.Email

JavaScript doesn’t support namespace by default. So if you create any element(function, method, object, variable) then it becomes global and pollute the global namespace. Let's take an example of defining two functions without any namespace,

function func1() {
    console.log("This is a first definition");

}
function func1() {
    console.log("This is a second definition");
}
func1(); // This is a second definition

It always calls the second function definition. In this case, namespace will solve the name collision problem.

I would use math package for getting the maximal value and minimal value :

func printMinMaxValue() {
    // integer max
    fmt.Printf("max int64 = %+v\n", math.MaxInt64)
    fmt.Printf("max int32 = %+v\n", math.MaxInt32)
    fmt.Printf("max int16 = %+v\n", math.MaxInt16)

    // integer min
    fmt.Printf("min int64 = %+v\n", math.MinInt64)
    fmt.Printf("min int32 = %+v\n", math.MinInt32)

    fmt.Printf("max flloat64= %+v\n", math.MaxFloat64)
    fmt.Printf("max float32= %+v\n", math.MaxFloat32)

    // etc you can see more int the `math`package
}

Ouput :

max int64 = 9223372036854775807
max int32 = 2147483647
max int16 = 32767
min int64 = -9223372036854775808
min int32 = -2147483648
max flloat64= 1.7976931348623157e+308
max float32= 3.4028234663852886e+38

Try this:

<?php
    $str = "This is some <b>bold</b> text.";
    echo htmlspecialchars($str);
?>

we can directly see the indexes on to the table if we know the index name with below :

select * from all_indexes where index_name= 'your index'

I have created a tool to orchestrate and launch backup of data and mysql containers, simply called docker-backup. There is even a ready-to-use image on the docker hub.

It's mainly written in Bash as it is mainly orchestration. It uses duplicity for the actual backup engine. You can currently backup to FTP(S) and Amazon S3.

The configuration is quite simple: write a config file in YAML describing what to backup and where, and here you go!

For data containers, it automatically mount the volumes shared by your container to backup and process it. For mysql containers, it links them and execute a mysqldump bundled with your container and process the result.

I wrote it because I use Docker-Cloud which is not up-to-date with recent docker-engine releases and because I wanted to embrace the Docker way by not including any process of backup inside my application containers.

TypeScript uses '<>' to surround casts, so the above becomes:

var script = <HTMLScriptElement>document.getElementsByName("script")[0];

However, unfortunately you cannot do:

var script = (<HTMLScriptElement[]>document.getElementsByName(id))[0];

You get the error

Cannot convert 'NodeList' to 'HTMLScriptElement[]'

But you can do :

(<HTMLScriptElement[]><any>document.getElementsByName(id))[0];

If you change the default project path, you must specify the location of the web.xml file, for example:

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-war-plugin</artifactId>
            <version>2.5</version>
            <configuration>
                <webXml>src\main\web\WEB-INF\web.xml</webXml>
            </configuration>
        </plugin>

I was working on same. Check below statement. Worked for me!!

SELECT * FROM [Schema].[Table] WHERE [Column] LIKE '%' + @Parameter + '%'

During the install of python make sure you have "Install for all users" selected. Uninstall python and do a custom install and check "Install for all users".

How about storing the new options in a variable, and then using .html(variable) to replace the data in the container?

mkdir()

creates only one directory at a time, if it is parent that one only. other wise it can create the sub directory(if the specified path is existed only) and do not create any directories in between any two directories. so it can not create smultiple directories in one directory

mkdirs()

create the multiple directories(in between two directories also) at a time.

You should be able to use join, which joins on the index as default. Given your desired result, you must use outer as the join type.

>>> df1.join(df2, how='outer')
            V1  V2
A 1/1/2012  12  15
  2/1/2012  14 NaN
  3/1/2012 NaN  21
B 1/1/2012  15  24
  2/1/2012   8   9
C 1/1/2012  17 NaN
  2/1/2012   9 NaN
D 1/1/2012 NaN   7
  2/1/2012 NaN  16

Signature: _.join(other, on=None, how='left', lsuffix='', rsuffix='', sort=False) Docstring: Join columns with other DataFrame either on index or on a key column. Efficiently Join multiple DataFrame objects by index at once by passing a list.

This might be useful for someone who has everything done right still facing issue. For them "above error may also cause due to ambiguous reference".

If your Controller contains

using System.Web.Mvc;

and also

using System.Web.Http;

It will create ambiguity and by default it will use MVC RouteConfig settings instead of WebApiConfig settings for routing. Make sure for WebAPI call you need System.Web.Http reference only

As @DSM points out, you can do this more directly using the vectorised string methods:

df['Date'].str[-4:].astype(int)

Or using extract (assuming there is only one set of digits of length 4 somewhere in each string):

df['Date'].str.extract('(?P<year>\d{4})').astype(int)

An alternative slightly more flexible way, might be to use apply (or equivalently map) to do this:

df['Date'] = df['Date'].apply(lambda x: int(str(x)[-4:]))
             #  converts the last 4 characters of the string to an integer

The lambda function, is taking the input from the Date and converting it to a year.
You could (and perhaps should) write this more verbosely as:

def convert_to_year(date_in_some_format):
    date_as_string = str(date_in_some_format)  # cast to string
    year_as_string = date_in_some_format[-4:] # last four characters
    return int(year_as_string)

df['Date'] = df['Date'].apply(convert_to_year)

Perhaps 'Year' is a better name for this column...

Using brew

Show current version

$ php -v

Change to different version
(eg. changing from 5.5.x to version 7.0.latest) :

$ brew unlink php55
$ brew install php70

Sometimes cleaning the server works. It worked for me many times.This is only applicable if the program worked earlier but suddenly it stops working.
Steps:
" Right click on Tomcat Server -> Clean. Then restart the server."

=== is not necessary. You know both values are strings so you dont need to compare types.

function do_check()_x000D_
{_x000D_
  var str1 = $("#textbox1").val();_x000D_
  var str2 = $("#textbox2").val();_x000D_
_x000D_
  if (str1 == str2)_x000D_
  {_x000D_
    $(":text").removeClass("incorrect");_x000D_
    alert("equal");_x000D_
  }_x000D_
  else_x000D_
  {_x000D_
    $(":text").addClass("incorrect");_x000D_
    alert("not equal");_x000D_
  }_x000D_
}

.incorrect_x000D_
{_x000D_
  background: #ff8888;_x000D_
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
_x000D_
<input id="textbox1" type="text">_x000D_
<input id="textbox2" type="text">_x000D_
_x000D_
<button onclick="do_check()">check</button>

Or, using your EOF markers, you need to quote the initial marker so expansion won't be done:

#-----v---v------
cat <<'EOF' >> brightup.sh
#!/bin/bash
curr=`cat /sys/class/backlight/intel_backlight/actual_brightness`
if [ $curr -lt 4477 ]; then
   curr=$((curr+406));
   echo $curr  > /sys/class/backlight/intel_backlight/brightness;
fi
EOF

IHTH

Layout

<LinearLayout 
    android:id="@+id/linearLayout"
    android:layout_width="300dp"
    android:gravity="center"
    android:layout_height="300dp"
    android:layout_centerInParent="true"
    android:background="@drawable/rounded_edge">
 </LinearLayout>

Drawable folder rounded_edge.xml

<shape 
xmlns:android="http://schemas.android.com/apk/res/android">
    <solid 
        android:color="@android:color/darker_gray">
    </solid>
    <stroke 
         android:width="0dp" 
         android:color="#424242">
    </stroke>
    <corners 
         android:topLeftRadius="100dip"
         android:topRightRadius="100dip"
         android:bottomLeftRadius="100dip"
         android:bottomRightRadius="100dip">
    </corners>
</shape>

Usual python3 log manager works for me with tensorflow==1.11.0:

import logging
logging.getLogger('tensorflow').setLevel(logging.INFO)

grep patterns are matched against individual lines so there is no way for a pattern to match a newline found in the input.

However you can find empty lines like this:

grep '^$' file
grep '^[[:space:]]*$' file # include white spaces 

find /home/test -regextype posix-extended -regex '^.*test\.log\.[0-9]{4}-[0-9]{2}-[0-9]{2}\.zip' -mtime +3

1. -name uses globular expressions, aka wildcards. What you want is -regex
2. To use intervals as you intend, you need to tell find to use Extended Regular Expressions via the -regextype posix-extended flag
3. You need to escape out the periods because in regex a period has the special meaning of any single character. What you want is a literal period denoted by \.
4. To match only those files that are greater than 3 days old, you need to prefix your number with a + as in -mtime +3.

Proof of Concept

$ find . -regextype posix-extended -regex '^.*test\.log\.[0-9]{4}-[0-9]{2}-[0-9]{2}\.zip'
./test.log.1234-12-12.zip

Used this for show text

var data = $('#id-selected-input').select2('data'); 
data.forEach(function (item) { 
    alert(item.text); 
})

A callback is commonly used in asynchronous programming, so you could create a method which handles the response from a web service. When you call the web service, you could pass the method to it so that when the web service responds, it call's the method you told it ... it "calls back".

In Java this can commonly be done through implementing an interface and passing an object (or an anonymous inner class) that implements it. You find this often with transactions and threading - such as the Futures API.

http://docs.oracle.com/javase/1.5.0/docs/api/java/util/concurrent/Future.html

There is also this way of specifying the viewmodel:

using Wpf = System.Windows;

public partial class App : Wpf.Application //your skeleton app already has this.
{
    protected override void OnStartup( Wpf.StartupEventArgs e ) //you need to add this.
    {
        base.OnStartup( e );
        MainWindow = new MainView();
        MainWindow.DataContext = new MainViewModel( e.Args );
        MainWindow.Show();
    }
}

<Rant>

All of the solutions previously proposed require that MainViewModel must have a parameterless constructor.

Microsoft is under the impression that systems can be built using parameterless constructors. If you are also under that impression, go ahead and use some of the other solutions.

For those that know that constructors must have parameters, and therefore the instantiation of objects cannot be left in the hands of magic frameworks, the proper way of specifying the viewmodel is the one I showed above.

</Rant>

Posting this to help someone.

Symptom:

channel 2: open failed: connect failed: Connection refused
debug1: channel 2: free: direct-tcpip:
   listening port 8890 for 169.254.76.1 port 8890,
   connect from ::1 port 52337 to ::1 port 8890, nchannels 8

My scenario; i had to use the remote server as a bastion host to connect elsewhere. Final Destination/Target: 169.254.76.1, port 8890. Through intermediary server with public ip: ec2-54-162-180-7.compute-1.amazonaws.com

SSH local port forwarding command:

ssh -i ~/keys/dev.tst -vnNT -L :8890:169.254.76.1:8890
[email protected]

What the problem was: There was no service bound on port 8890 in the target host. i had forgotten to start the service.

How did i trouble shoot:

SSH into bastion host and then do curl.

Hope this helps.

With Kotlin and using dp unit:

myView.updateLayoutParams {
    val pixels = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 200f, context.resources.displayMetrics)
    height = pixels.toInt()
}

Try this:

function someFunction(site)     
{     
    return site.replace(/\/$/, "");
} 

CLI has some limit when ouput is displayed. I suggest to export output into local file:

$hive -e 'show partitions table;' > partitions

Try:

output=$(ps -ef | awk '/siebsvc –s siebsrvr/ && !/awk/ { a++ } END { print a }'); echo $output

Wrapping your command in $( ) tells the shell to run that command, instead of attempting to set the command itself to the variable named "output". (Note that you could also use backticks `command`.)

I can highly recommend http://tldp.org/LDP/abs/html/commandsub.html to learn more about command substitution.

Also, as 1_CR correctly points out in a comment, the extra space between the equals sign and the assignment is causing it to fail. Here is a simple example on my machine of the behavior you are experiencing:

jed@MBP:~$ foo=$(ps -ef |head -1);echo $foo
UID PID PPID C STIME TTY TIME CMD

jed@MBP:~$ foo= $(ps -ef |head -1);echo $foo
-bash: UID: command not found
UID PID PPID C STIME TTY TIME CMD

timer = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(createEnemy), userInfo: nil, repeats: true)

And Create Fun By The Name createEnemy

fund createEnemy ()
{
do anything ////
}

Or you can do also:

$('.example').on('click', function(e) { 
   if( e.target != this ) 
       return false;

   // ... //
});

This approach from Microsoft works very well and provides the option to compare one list to another and switch them to get the difference in each. If you are comparing classes simply add your objects to two separate lists and then run the comparison.

http://msdn.microsoft.com/en-us/library/bb397894.aspx

I went threw the same problem. None of the answers above worked for me, but i ended finding the solution on my own. The ipa file wasn't created because there was library files (libXXX.a) in Target-> Build Phases -> Copy Bundle with resources

Hope it will help someone :)

Following the documentation of fopen:

``a'' Open for writing. The file is created if it does not exist. The stream is positioned at the end of the file. Subsequent writes to the file will always end up at the then cur- rent end of file, irrespective of any intervening fseek(3) or similar.

So if you pFile2=fopen("myfile2.txt", "a"); the stream is positioned at the end to append automatically. just do:

FILE *pFile;
FILE *pFile2;
char buffer[256];

pFile=fopen("myfile.txt", "r");
pFile2=fopen("myfile2.txt", "a");
if(pFile==NULL) {
    perror("Error opening file.");
}
else {
    while(fgets(buffer, sizeof(buffer), pFile)) {
        fprintf(pFile2, "%s", buffer);
    }
}
fclose(pFile);
fclose(pFile2);

The line function implementation should be:

void addStudent(struct student person) {

}

person is not a type but a variable, you cannot use it as the type of a function parameter.

Also, make sure your struct is defined before the prototype of the function addStudent as the prototype uses it.

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

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

This worked best for me:

import decimal
'%.2E' % decimal.Decimal('40800000000.00000000000000')
# 4.08E+10

Since I don't find a simple answer just adding more this will be JSP page. save this content to a jsp file once you run you can see the values of the selected displayed.

Update: save the file as test.jsp and run it on any web/app server

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<%@ page import="java.lang.*" %>
<%@ page import="java.io.*" %>
<% String[] a = request.getParameterValues("multiple");
if(a!=null)
{
for(int i=0;i<a.length;i++){
//out.println(Integer.parseInt(a[i])); //If integer
out.println(a[i]);
}}
%>
<html>
<body>
<form action="test.jsp" method="get">
<select name="multiple" multiple="multiple"><option value="1">1</option><option value="2">2</option><option value="3">3</option></select>
<input type="submit">
</form>
</body>
</html>

The Java compiler assumes that your input is UTF-8 encoded, either because you specified it to be or because it's your platform default encoding.

However, the data in your .java files is not actually encoded in UTF-8. The problem is probably the ¬ character. Make sure your editor (or IDE) of choice actually safes its file in UTF-8 encoding.

Later than my previous answer, but may be useful anyway; while gRaphaël Charting may be an outdated alternative, a more recent and nicer option may be http://chartjs.org - still without any Flash, with a MIT license, and a recently updated GitHub.

I've been using it myself since my last answer, so now I have some web apps with one and some with the other.

If you are starting a project anew, try with Chart.js first.

You don't want to list all 1000 object in your bucket at a time. A more robust solution will be to fetch a max of 10 objects at a time. You can do this with the withMaxKeys method.

The following code creates an S3 client, fetches 10 or less objects at a time and filters based on a prefix and generates a pre-signed url for the fetched object:

import com.amazonaws.HttpMethod;
import com.amazonaws.SdkClientException;
import com.amazonaws.auth.AWSStaticCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.services.s3.model.*;

import java.net.URL;
import java.util.Date;

/**
 * @author shabab
 * @since 21 Sep, 2020
 */
public class AwsMain {

    static final String ACCESS_KEY = "";
    static final String SECRET = "";
    static final Regions BUCKET_REGION = Regions.DEFAULT_REGION;
    static final String BUCKET_NAME = "";

    public static void main(String[] args) {
        BasicAWSCredentials awsCreds = new BasicAWSCredentials(ACCESS_KEY, SECRET);

        try {
            final AmazonS3 s3Client = AmazonS3ClientBuilder
                    .standard()
                    .withRegion(BUCKET_REGION)
                    .withCredentials(new AWSStaticCredentialsProvider(awsCreds))
                    .build();

            ListObjectsV2Request req = new ListObjectsV2Request().withBucketName(BUCKET_NAME).withMaxKeys(10);
            ListObjectsV2Result result;

            do {
                result = s3Client.listObjectsV2(req);

                result.getObjectSummaries()
                        .stream()
                        .filter(s3ObjectSummary -> {
                            return s3ObjectSummary.getKey().contains("Market-subscriptions/")
                                    && !s3ObjectSummary.getKey().equals("Market-subscriptions/");
                        })
                        .forEach(s3ObjectSummary -> {

                            GeneratePresignedUrlRequest generatePresignedUrlRequest =
                                    new GeneratePresignedUrlRequest(BUCKET_NAME, s3ObjectSummary.getKey())
                                            .withMethod(HttpMethod.GET)
                                            .withExpiration(getExpirationDate());

                            URL url = s3Client.generatePresignedUrl(generatePresignedUrlRequest);

                            System.out.println(s3ObjectSummary.getKey() + " Pre-Signed URL: " + url.toString());
                        });

                String token = result.getNextContinuationToken();
                req.setContinuationToken(token);

            } while (result.isTruncated());
        } catch (SdkClientException e) {
            e.printStackTrace();
        }

    }

    private static Date getExpirationDate() {
        Date expiration = new java.util.Date();
        long expTimeMillis = expiration.getTime();
        expTimeMillis += 1000 * 60 * 60;
        expiration.setTime(expTimeMillis);

        return expiration;
    }
}

Not to repeat what everyone already have said but keep the following cheat sheet handly for File manipulations:

1. System.IO.File.ReadAllBytes(filename);
2. File.Exists(filename)
3. Path.Combine(folderName, resOfThePath);
4. Path.GetFullPath(path); // converts a relative path to absolute one
5. Path.GetExtension(path);

Looks like the change() function is only called when you check a radio button, not when you uncheck it. The solution I used is to bind the change event to every radio button:

$("#r1, #r2, #r3").change(function () {

Or you could give all the radio buttons the same name:

$("input[name=someRadioGroup]:radio").change(function () {

Here's a working jsfiddle example (updated from Chris Porter's comment.)

Per @Ray's comment, you should avoid using names with . in them. Those names work in jQuery 1.7.2 but not in other versions (jsfiddle example.).

I had this problem, when I started ssh-agent, when it was already running. Gets confused. To see if this is the case, use

eval $(ssh-agent)

to see if this is the same as what you thought it should be. In my case, it was different than the one I just started.

To further verify if you have more than one ssh-agent running, you can review:

ps -ef | grep ssh

The theory (for the language lawyers and the mathematically inclined):

equals() (javadoc) must define an equivalence relation (it must be reflexive, symmetric, and transitive). In addition, it must be consistent (if the objects are not modified, then it must keep returning the same value). Furthermore, o.equals(null) must always return false.

hashCode() (javadoc) must also be consistent (if the object is not modified in terms of equals(), it must keep returning the same value).

The relation between the two methods is:

Whenever a.equals(b), then a.hashCode() must be same as b.hashCode().

In practice:

If you override one, then you should override the other.

Use the same set of fields that you use to compute equals() to compute hashCode().

Use the excellent helper classes EqualsBuilder and HashCodeBuilder from the Apache Commons Lang library. An example:

public class Person {
    private String name;
    private int age;
    // ...

    @Override
    public int hashCode() {
        return new HashCodeBuilder(17, 31). // two randomly chosen prime numbers
            // if deriving: appendSuper(super.hashCode()).
            append(name).
            append(age).
            toHashCode();
    }

    @Override
    public boolean equals(Object obj) {
       if (!(obj instanceof Person))
            return false;
        if (obj == this)
            return true;

        Person rhs = (Person) obj;
        return new EqualsBuilder().
            // if deriving: appendSuper(super.equals(obj)).
            append(name, rhs.name).
            append(age, rhs.age).
            isEquals();
    }
}

Also remember:

When using a hash-based Collection or Map such as HashSet, LinkedHashSet, HashMap, Hashtable, or WeakHashMap, make sure that the hashCode() of the key objects that you put into the collection never changes while the object is in the collection. The bulletproof way to ensure this is to make your keys immutable, which has also other benefits.

There seem to be multiple causes for this.

For mine, it was that the .csproj file contained references to two different versions of Microsoft.Bcl.Build.targets:

<Import Project="..\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets" Condition="Exists('..\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" />
<Target Name="EnsureBclBuildImported" BeforeTargets="BeforeBuild" Condition="'$(BclBuildImported)' == ''">
    <Error Condition="!Exists('..\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" Text="This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=317567." HelpKeyword="BCLBUILD2001" />
    <Error Condition="Exists('..\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" Text="The build restored NuGet packages. Build the project again to include these packages in the build. For more information, see http://go.microsoft.com/fwlink/?LinkID=317568." HelpKeyword="BCLBUILD2002" />
</Target>


<Import Project="..\packages\Microsoft.Bcl.Build.1.0.21\build\Microsoft.Bcl.Build.targets" Condition="Exists('..\packages\Microsoft.Bcl.Build.1.0.21\build\Microsoft.Bcl.Build.targets')" />
<Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
    <PropertyGroup>
        <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
    </PropertyGroup>
    <Error Condition="!Exists('..\packages\Microsoft.Bcl.Build.1.0.21\build\Microsoft.Bcl.Build.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.Bcl.Build.1.0.21\build\Microsoft.Bcl.Build.targets'))" />
</Target>

I removed the old reference, and it solved the problem.

Like the previous replies, I'm also suggesting xcopy. However, I would like to add to Hallgeir Engen's answer with the /exclude parameter. There seems to be a bug with the parameter preventing it from working with path names that are long or that contain spaces, as quotes will not work. The path names need to be in the "DOS"-format with "Documents" translating to "DOCUME~1" (according to this source).

So, if you want to use the \exclude parameter, there is a workaround here:

cd $(SolutionDir)
xcopy "source-relative-to-path-above" "destination-relative-to-path-above
/exclude:exclude-file-relative-path

Note that the source and destination paths can (and should, if they contain spaces) be within quotes, but not the path to the exclude file.

If you are looking for 1st Number with decimal as string has correct decimal places, you may try regexp_substr function like this:

regexp_substr('stack12.345overflow', '\.*[[:digit:]]+\.*[[:digit:]]*')

ln -s source_file target_file

http://unixhelp.ed.ac.uk/CGI/man-cgi?ln

It's better to use a semi-transparent .png.

Just open Photoshop, create a 2x2 pixel image (picking 1x1 can cause an Internet Explorer bug!), fill it with a green color and set the opacity in "Layers tab" to 60%. Then save it and make it a background image:

<p style="background: url(green.png);">any text</p>

It works cool, of course, except in lovely Internet Explorer 6. There are better fixes available, but here's a quick hack:

p {
    _filter: expression((runtimeStyle.backgroundImage != 'none') ? runtimeStyle.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src='+currentStyle.backgroundImage.split('\"')[1]+', sizingMethod=scale)' : runtimeStyle.filter,runtimeStyle.backgroundImage = 'none');
}

This should work just fine for you, so long as the function jsonp_callback is visible in the global scope:

function jsonp_callback(data) {
    // returning from async callbacks is (generally) meaningless
    console.log(data.found);
}

var url = "http://public-api.wordpress.com/rest/v1/sites/wtmpeachtest.wordpress.com/posts?callback=jsonp_callback";

$http.jsonp(url);

Full demo: http://jsfiddle.net/mattball/a4Rc2/ (disclaimer: I've never written any AngularJS code before)

Try this...

update [table_name] set [field_name] = 
replace([field_name],'[string_to_find]','[string_to_replace]');

import numpy as np
array_ = np.array([[1,2,3]])
add_row = np.array([[4,5,6]])

array_ = np.concatenate((array_, add_row), axis=0)

string URI = "site.com/mail.php";
using (WebClient client = new WebClient())
{
    System.Collections.Specialized.NameValueCollection postData = 
        new System.Collections.Specialized.NameValueCollection()
       {
              { "to", emailTo },  
              { "subject", currentSubject },
              { "body", currentBody }
       };
    string pagesource = Encoding.UTF8.GetString(client.UploadValues(URI, postData));
}

For what purpose?

• Quickest for an IF would be IF EXISTS (SELECT * FROM Table)...
• For a result set, SELECT TOP 1 1 FROM Table returns either zero or one rows
• For exactly one row with a count (0 or non-zero), SELECT COUNT(*) FROM Table

If you are using multiple flavors?

-make sure the resource file is not declared/added both in only one of the flavors and in main.

Example: a_layout_file.xml file containing the symbol variable(s)

src:

flavor1/res/layout/(no file)

flavor2/res/layout/a_layout_file.xml

main/res/layout/a_layout_file.xml

This setup will give the error: cannot find symbol variable, this is because the resource file can only be in both flavors or only in the main.

class Rectangle : public Area<int> {
};

Yes, I think performance-wise you might find a difference as bitwise left and right shift operations can be performed with a complexity of o(1) with a huge data set.

For example, calculating the power of 2 ^ n:

int value = 1;
while (exponent<n)
    {
       // Print out current power of 2
        value = value *2; // Equivalent machine level left shift bit wise operation
        exponent++;
         }
    }

Similar code with a bitwise left shift operation would be like:

value = 1 << n;

Moreover, performing a bit-wise operation is like exacting a replica of user level mathematical operations (which is the final machine level instructions processed by the microcontroller and processor).

I guess you could use curl and wget, but since Oracle requires you to check of some checkmarks this will be painfull to emulate with the tools mentioned. You would have to download the page with the license agreement and from looking at it figure out what request is needed to get to the actual download.

Of course you could simply start a browser, but this might not qualify as 'from the command line'. So you might want to look into lynx, a text based browser.

Assuming WinForms, the ForeColor property allows to change all the text in the TextBox (not just what you're about to add):

TextBox.ForeColor = Color.Red;

To only change the color of certain words, look at RichTextBox.

To install this product you can see this tutorial: OpenCV on Ubuntu

There are listed the packages you need. So, with:

# dpkg -l | grep libcv2
# dpkg -l | grep libhighgui2

and more listed in the url you can find which packages are installed.

With

# dpkg -L libcv2

you can check where are installed

This operative is used for all debian packages.

With python 3 you can use list_a[filter] to get True values. To get False values use list_a[~filter]

It's a pandas data-frame and it's using label base selection tool with df.loc and in it, there are two inputs, one for the row and the other one for the column, so in the row input it's selecting all those row values where the value saved in the column class is versicolor, and in the column input it's selecting the column with label class, and assigning Iris-versicolor value to them. So basically it's replacing all the cells of column class with value versicolor with Iris-versicolor.

Not saying this is the best way to go, but its good to have options. Necessitas is a project that ports Qt to android. It is still in its early stages and lacking full features, but for those who know Qt and don't wanna bother with the terrible lack of good tools for Android UI would be wise to at least consider using this.

For modern browsers, use td:nth-child(2) for the second td, and td:nth-child(3) for the third. Remember that these retrieve the second and third td for every row.

If you need compatibility with IE older than version 9, use sibling combinators or JavaScript as suggested by Tim. Also see my answer to this related question for an explanation and illustration of his method.

Just console.log('debug');

And run it you can see the log in the terminal/cd prompt .

Below I sum up Prateek Joshi's awesome explanation.

The theory:

• URI (uniform resource identifier) identifies a resource (text document, image file, etc)
• URL (uniform resource locator) is a subset of the URIs that include a network location
• URN (uniform resource name) is a subset of URIs that include a name within a given space, but no location

That is:

And for an example:

Also, if you haven't already, I suggest reading Roger Pate's answer.

Check out this solution. It worked for me..... Check the id of the button for which the error is raised...it may be the same in any one of the other page in your app. If yes, then change the id of them and then the app runs perfectly.

I was having two same button id's in two different XML codes....I changed the id. Now it runs perfectly!! Hope it works

Add to the release plugin config in the root-level pom.xml:

<configuration>
    <arguments>-Dmaven.javadoc.skip=true</arguments>
</configuration>

MySQL has 4 levels of collation: server, database, table, column. If you change the collation of the server, database or table, you don't change the setting for each column, but you change the default collations.

E.g if you change the default collation of a database, each new table you create in that database will use that collation, and if you change the default collation of a table, each column you create in that table will get that collation.

Quick example:

On Ubuntu, if you are interested, for instance, in Gmail then open the Terminal and type:

nslookup -q=mx gmail.com

You can use the following to make type="number" accept positive numbers only:

input type="number" step="1" pattern="\d+"

Just use Analyze | Inspect Code with appropriate inspection enabled (Unused declaration under Declaration redundancy group).

Using IntelliJ 11 CE you can now "Analyze | Run Inspection by Name ... | Unused declaration"

For an example of how Action<> is used.

Console.WriteLine has a signature that satisifies Action<string>.

    static void Main(string[] args)
    {
        string[] words = "This is as easy as it looks".Split(' ');

        // Passing WriteLine as the action
        Array.ForEach(words, Console.WriteLine);         
    }

Hope this helps

For i As Integer = 0 To 100
    bool = False
    For j As Integer = 0 To 100
        If check condition Then
            'if condition match
            bool = True
            Exit For 'Continue For
        End If
    Next
    If bool = True Then Continue For
Next

Just Reinstall JDK 1.7 it will work.

In Chrome when you load a website from some HTTP server both absolute paths (e.g. /images/sth.png) and relative paths to some upper level directory (e.g. ../images/sth.png) work.

But!

When you load (in Chrome!) a HTML document from local filesystem you cannot access directories above current directory. I.e. you cannot access ../something/something.sth and changing relative path to absolute or anything else won't help.

NaN means "Not a number." It's a special floating point value that means that the result of an operation was not defined or not representable as a real number.

See here for more explanation of this value.

I used the Google Apps Script method indexOf() and its results were wrong. So I wrote the small function Myindexof(), instead of indexOf:

function Myindexof(s,text)
{
  var lengths = s.length;
  var lengtht = text.length;
  for (var i = 0;i < lengths - lengtht + 1;i++)
  {
    if (s.substring(i,lengtht + i) == text)
      return i;
  }
  return -1;
}

var s = 'Hello!';
var text = 'llo';
if (Myindexof(s,text) > -1)
   Logger.log('yes');
else
   Logger.log('no');

A key feature of dynamic programming is the presence of overlapping subproblems. That is, the problem that you are trying to solve can be broken into subproblems, and many of those subproblems share subsubproblems. It is like "Divide and conquer", but you end up doing the same thing many, many times. An example that I have used since 2003 when teaching or explaining these matters: you can compute Fibonacci numbers recursively.

def fib(n):
  if n < 2:
    return n
  return fib(n-1) + fib(n-2)

Use your favorite language and try running it for fib(50). It will take a very, very long time. Roughly as much time as fib(50) itself! However, a lot of unnecessary work is being done. fib(50) will call fib(49) and fib(48), but then both of those will end up calling fib(47), even though the value is the same. In fact, fib(47) will be computed three times: by a direct call from fib(49), by a direct call from fib(48), and also by a direct call from another fib(48), the one that was spawned by the computation of fib(49)... So you see, we have overlapping subproblems.

Great news: there is no need to compute the same value many times. Once you compute it once, cache the result, and the next time use the cached value! This is the essence of dynamic programming. You can call it "top-down", "memoization", or whatever else you want. This approach is very intuitive and very easy to implement. Just write a recursive solution first, test it on small tests, add memoization (caching of already computed values), and --- bingo! --- you are done.

Usually you can also write an equivalent iterative program that works from the bottom up, without recursion. In this case this would be the more natural approach: loop from 1 to 50 computing all the Fibonacci numbers as you go.

fib[0] = 0
fib[1] = 1
for i in range(48):
  fib[i+2] = fib[i] + fib[i+1]

In any interesting scenario the bottom-up solution is usually more difficult to understand. However, once you do understand it, usually you'd get a much clearer big picture of how the algorithm works. In practice, when solving nontrivial problems, I recommend first writing the top-down approach and testing it on small examples. Then write the bottom-up solution and compare the two to make sure you are getting the same thing. Ideally, compare the two solutions automatically. Write a small routine that would generate lots of tests, ideally -- all small tests up to certain size --- and validate that both solutions give the same result. After that use the bottom-up solution in production, but keep the top-bottom code, commented out. This will make it easier for other developers to understand what it is that you are doing: bottom-up code can be quite incomprehensible, even you wrote it and even if you know exactly what you are doing.

In many applications the bottom-up approach is slightly faster because of the overhead of recursive calls. Stack overflow can also be an issue in certain problems, and note that this can very much depend on the input data. In some cases you may not be able to write a test causing a stack overflow if you don't understand dynamic programming well enough, but some day this may still happen.

Now, there are problems where the top-down approach is the only feasible solution because the problem space is so big that it is not possible to solve all subproblems. However, the "caching" still works in reasonable time because your input only needs a fraction of the subproblems to be solved --- but it is too tricky to explicitly define, which subproblems you need to solve, and hence to write a bottom-up solution. On the other hand, there are situations when you know you will need to solve all subproblems. In this case go on and use bottom-up.

I would personally use top-bottom for Paragraph optimization a.k.a the Word wrap optimization problem (look up the Knuth-Plass line-breaking algorithms; at least TeX uses it, and some software by Adobe Systems uses a similar approach). I would use bottom-up for the Fast Fourier Transform.

I know this doesn't help you, but I have to say that this is one of the reasons I jumped from XAMPP to WampServer. WampServer lets you install multiple versions of PHP, Apache and/or MySQL, and switch between them all via a menu option.

You need to provide a default value:

new_field = models.CharField(max_length=140, default='SOME STRING')

Optimum buffer size is related to a number of things: file system block size, CPU cache size and cache latency.

Most file systems are configured to use block sizes of 4096 or 8192. In theory, if you configure your buffer size so you are reading a few bytes more than the disk block, the operations with the file system can be extremely inefficient (i.e. if you configured your buffer to read 4100 bytes at a time, each read would require 2 block reads by the file system). If the blocks are already in cache, then you wind up paying the price of RAM -> L3/L2 cache latency. If you are unlucky and the blocks are not in cache yet, the you pay the price of the disk->RAM latency as well.

This is why you see most buffers sized as a power of 2, and generally larger than (or equal to) the disk block size. This means that one of your stream reads could result in multiple disk block reads - but those reads will always use a full block - no wasted reads.

Now, this is offset quite a bit in a typical streaming scenario because the block that is read from disk is going to still be in memory when you hit the next read (we are doing sequential reads here, after all) - so you wind up paying the RAM -> L3/L2 cache latency price on the next read, but not the disk->RAM latency. In terms of order of magnitude, disk->RAM latency is so slow that it pretty much swamps any other latency you might be dealing with.

So, I suspect that if you ran a test with different cache sizes (haven't done this myself), you will probably find a big impact of cache size up to the size of the file system block. Above that, I suspect that things would level out pretty quickly.

There are a ton of conditions and exceptions here - the complexities of the system are actually quite staggering (just getting a handle on L3 -> L2 cache transfers is mind bogglingly complex, and it changes with every CPU type).

This leads to the 'real world' answer: If your app is like 99% out there, set the cache size to 8192 and move on (even better, choose encapsulation over performance and use BufferedInputStream to hide the details). If you are in the 1% of apps that are highly dependent on disk throughput, craft your implementation so you can swap out different disk interaction strategies, and provide the knobs and dials to allow your users to test and optimize (or come up with some self optimizing system).

Socket connections in Android are the same as in Java: http://www.oracle.com/technetwork/java/socket-140484.html

Things you need to be aware of:

1. If phone goes to sleep your app will no longer execute, so socket will eventually timeout. You can prevent this with wake lock. This will eat devices battery tremendously - I know I wouldn't use that app.
2. If you do this constantly, even when your app is not active, then you need to use Service.
3. Activities and Services can be killed off by OS at any time, especially if they are part of an inactive app.

Take a look at AlarmManager, if you need scheduled execution of your code.

Do you need to run your code and receive data even if user does not use the app any more (i.e. app is inactive)?

Note: z-index only works on positioned elements (position:absolute, position:relative, or position:fixed). Use one of those.

Here is a possible solution:

From your first script, call your second script with the following line:

wscript.exe invis.vbs run.bat %*

Actually, you are calling a vbs script with:

• the [path]\name of your script
• all the other arguments needed by your script (%*)

Then, invis.vbs will call your script with the Windows Script Host Run() method, which takes:

• intWindowStyle : 0 means "invisible windows"
• bWaitOnReturn : false means your first script does not need to wait for your second script to finish

Here is invis.vbs:

set args = WScript.Arguments
num = args.Count

if num = 0 then
    WScript.Echo "Usage: [CScript | WScript] invis.vbs aScript.bat <some script arguments>"
    WScript.Quit 1
end if

sargs = ""
if num > 1 then
    sargs = " "
    for k = 1 to num - 1
        anArg = args.Item(k)
        sargs = sargs & anArg & " "
    next
end if

Set WshShell = WScript.CreateObject("WScript.Shell")

WshShell.Run """" & WScript.Arguments(0) & """" & sargs, 0, False

From Ruby 2.3.0 onward, you can combine the safe navigation operator (&.) with Numeric#nonzero?. &. returns nil if the instance was nil and nonzero? - if the number was 0:

if discount&.nonzero?
  # ...
end

Or postfix:

do_something if discount&.nonzero?

To find all the matching strings, use String's scan method.

str = "A 54mpl3 string w1th 7 numb3rs scatter36 ar0und"
str.scan(/\d+/)
#=> ["54", "3", "1", "7", "3", "36", "0"]

If you want, MatchData, which is the type of the object returned by the Regexp match method, use:

str.to_enum(:scan, /\d+/).map { Regexp.last_match }
#=> [#<MatchData "54">, #<MatchData "3">, #<MatchData "1">, #<MatchData "7">, #<MatchData "3">, #<MatchData "36">, #<MatchData "0">]

The benefit of using MatchData is that you can use methods like offset:

match_datas = str.to_enum(:scan, /\d+/).map { Regexp.last_match }
match_datas[0].offset(0)
#=> [2, 4]
match_datas[1].offset(0)
#=> [7, 8]

See these questions if you'd like to know more:

• "How do I get the match data for all occurrences of a Ruby regular expression in a string?"
• "Ruby regular expression matching enumerator with named capture support"
• "How to find out the starting point for each match in ruby"

Reading about special variables $&, $', $1, $2 in Ruby will be helpful too.

Just put your Images in Public Directory (public/...folder or direct images).
Public directory is by default rendered by laravel application.
Let's suppose I stored images in public/images/myimage.jpg.
Then in your HTML view, page like: (image.blade.php)

<img src="{{url('/images/myimage.jpg')}}" alt="Image"/>

Everyone talks here about some Java configuration stuff, JVM problems etc., in my case the error was not related to these topics at all and had a very trivial and easy to solve reason: I had a wrong annotation at my endpoint in my Controller (Spring Boot application).

Edit 2018-02-06: revision based on this comment

Edit: forgot to mention that this works on Python 2.7.x

There's multiprocesing.pool, and the following sample illustrates how to use one of them:

from multiprocessing.pool import ThreadPool as Pool
# from multiprocessing import Pool

pool_size = 5  # your "parallelness"

# define worker function before a Pool is instantiated
def worker(item):
    try:
        api.my_operation(item)
    except:
        print('error with item')

pool = Pool(pool_size)

for item in items:
    pool.apply_async(worker, (item,))

pool.close()
pool.join()

Now if you indeed identify that your process is CPU bound as @abarnert mentioned, change ThreadPool to the process pool implementation (commented under ThreadPool import). You can find more details here: http://docs.python.org/2/library/multiprocessing.html#using-a-pool-of-workers

It is just a name change. before_action is more specific, because it gets executed before an action.

The smart thing is not to write the crypto yourself but to use something like passlib: https://bitbucket.org/ecollins/passlib/wiki/Home

It is easy to mess up writing your crypto code in a secure way. The nasty thing is that with non crypto code you often immediately notice it when it is not working since your program crashes. While with crypto code you often only find out after it is to late and your data has been compromised. Therefor I think it is better to use a package written by someone else who is knowledgable about the subject and which is based on battle tested protocols.

Also passlib has some nice features which make it easy to use and also easy to upgrade to a newer password hashing protocol if an old protocol turns out to be broken.

Also just a single round of sha512 is more vulnerable to dictionary attacks. sha512 is designed to be fast and this is actually a bad thing when trying to store passwords securely. Other people have thought long and hard about all this sort issues so you better take advantage of this.

Numeral.js is a library I created that can can format numbers, currency, percentages and has support for localization.

numeral(0.7523).format('0%') // returns string "75%"

numeral.js

Have a look at the documentation for -[UIStoryboard instantiateViewControllerWithIdentifier:]. This allows you to instantiate a view controller from your storyboard using the identifier that you set in the IB Attributes Inspector:

EDITED to add example code:

UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:@"MainStoryboard"
                                                         bundle: nil];

MyViewController *controller = (MyViewController*)[mainStoryboard 
                    instantiateViewControllerWithIdentifier: @"<Controller ID>"];

final MessageDigest digest = MessageDigest.getInstance("SHA-1");
result = digest.digest(stringToHash.getBytes("UTF-8"));

// Another way to construct HEX, my previous post was only the method like your solution
StringBuilder sb = new StringBuilder();

for (byte b : result) // This is your byte[] result..
{
    sb.append(String.format("%02X", b));
}

String messageDigest = sb.toString();

I prefer this (below):

public class User
{
    public int Id { get; set; }
    public int? CountryId { get; set; }
    [ForeignKey("CountryId")]
    public virtual Country Country { get; set; }
}

Because EF was creating 2 foreign keys in the database table: CountryId, and CountryId1, but the code above fixed that.

This is the best way to make add images/screenshots of your app and keep your repository look clean.

Create a screenshot folder in your repository and add the images you want to display.

Now go to README.md and add this HTML code to form a table.

#### Flutter App Screenshots

<table>
  <tr>
    <td>First Screen Page</td>
     <td>Holiday Mention</td>
     <td>Present day in purple and selected day in pink</td>
  </tr>
  <tr>
    <td><img src="screenshots/Screenshot_1582745092.png" width=270 height=480></td>
    <td><img src="screenshots/Screenshot_1582745125.png" width=270 height=480></td>
    <td><img src="screenshots/Screenshot_1582745139.png" width=270 height=480></td>
  </tr>
 </table>

In the <td><img src="(COPY IMAGE PATH HERE)" width=270 height=480></td>

** To get the image path --> Go to the screenshot folder and open the image and on the right most side, you will find Copy path button.

You will get a table like this in your repository--->

From scipy.stats.linregress source. They use the average sum of squares method.

import numpy as np

x = np.array(x)
y = np.array(y)

# average sum of squares:
ssxm, ssxym, ssyxm, ssym = np.cov(x, y, bias=1).flat

r_num = ssxym
r_den = np.sqrt(ssxm * ssym)
r = r_num / r_den

if r_den == 0.0:
    r = 0.0
else:
    r = r_num / r_den

    if r > 1.0:
        r = 1.0
    elif r < -1.0:
        r = -1.0

Simple ASP.NET MVC subscription form with email textbox would be implemented like that:

Model

The data from the form is mapped to this model

public class SubscribeModel
{
    [Required]
    public string Email { get; set; }
}

View

View name should match controller method name.

@model App.Models.SubscribeModel

@using (Html.BeginForm("Subscribe", "Home", FormMethod.Post))
{
    @Html.TextBoxFor(model => model.Email)
    @Html.ValidationMessageFor(model => model.Email)
    <button type="submit">Subscribe</button>
}

Controller

Controller is responsible for request processing and returning proper response view.

public class HomeController : Controller
{
    public ActionResult Index()
    {
        return View();
    }

    [HttpPost]
    public ActionResult Subscribe(SubscribeModel model)
    {
        if (ModelState.IsValid)
        {
            //TODO: SubscribeUser(model.Email);
        }

        return View("Index", model);
    }
}

Here is my project structure. Please notice, "Home" views folder matches HomeController name.

According to the spec the expected form is <br> for HTML 5 but a closing slash is permitted.