Programs & Examples On #Computer architecture

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#include <chrono>
#include <iostream>

int main()
{
    typedef std::chrono::high_resolution_clock Time;
    typedef std::chrono::milliseconds ms;
    typedef std::chrono::duration<float> fsec;
    auto t0 = Time::now();
    auto t1 = Time::now();
    fsec fs = t1 - t0;
    ms d = std::chrono::duration_cast<ms>(fs);
    std::cout << fs.count() << "s\n";
    std::cout << d.count() << "ms\n";
}

which for me prints out:

6.5e-08s
0ms

This code may help you. Use it in your oncreate method.

getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);

public class Car
{
     public Car(string model)
     {
        Console.WriteLine(model);
     }
}

public class Mercedes : Car
{
     public Mercedes(string model): base(model)
     {

     }
}

Usage:

Mercedes mercedes = new Mercedes("CLA Shooting Brake");

Output: CLA Shooting Brake

You can code the handler setup like this:

<area id="nose" shape="rect" coords="280,240,330,275" onmouseover="zoom.call(this)"/>

Then this in your handler will refer to the element. Now, I'll offer the caveat that I'm not 100% sure what happens when you've got a handler in an <area> tag, largely because I haven't seen an <area> tag in like a decade or so. I think it should give you the image tag, but that could be wrong.

edit — yes, it's wrong - you get the <area> tag, not the <img>. So you'll have to get that element's parent (the map), and then find the image that's using it (that is, the <img> whose "usemap" attribute refers to the map's name).

edit again — except it doesn't matter because you want the area's "id" durr. Sorry for not reading correctly.

Not only is the boolean datatype missing in Oracle's SQL (not PL/SQL), but they also have no clear recommendation about what to use instead. See this thread on asktom. From recommending CHAR(1) 'Y'/'N' they switch to NUMBER(1) 0/1 when someone points out that 'Y'/'N' depends on the English language, while e.g. German programmers might use 'J'/'N' instead.

The worst thing is that they defend this stupid decision just like they defend the ''=NULL stupidity.

Use a generator:

common = (x for x in list1 if x in list2)

The advantage here is that this will return in constant time (nearly instant) even when using huge lists or other huge iterables.

For example,

list1 =  list(range(0,10000000))
list2=list(range(1000,20000000))
common = (x for x in list1 if x in list2)

All other answers here will take a very long time with these values for list1 and list2.

You can then iterate the answer with

for i in common: print(i)

Or convert it to a list with

list(i)

<?php
//
// A very simple PHP example that sends a HTTP POST to a remote site
//

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL,"http://xxxxxxxx.xxx/xx/xx");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS,
            "dispnumber=567567567&extension=6");
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/x-www-form-urlencoded'));


// receive server response ...
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$server_output = curl_exec ($ch);

curl_close ($ch);

// further processing ....
if ($server_output == "OK") { ... } else { ... }

?>

zlib handles the deflate compression/decompression algorithm, but there is more than that in a ZIP file.

You can try libzip. It is free, portable and easy to use.

UPDATE: Here I attach quick'n'dirty example of libzip, with all the error controls ommited:

#include <zip.h>

int main()
{
    //Open the ZIP archive
    int err = 0;
    zip *z = zip_open("foo.zip", 0, &err);

    //Search for the file of given name
    const char *name = "file.txt";
    struct zip_stat st;
    zip_stat_init(&st);
    zip_stat(z, name, 0, &st);

    //Alloc memory for its uncompressed contents
    char *contents = new char[st.size];

    //Read the compressed file
    zip_file *f = zip_fopen(z, name, 0);
    zip_fread(f, contents, st.size);
    zip_fclose(f);

    //And close the archive
    zip_close(z);

    //Do something with the contents
    //delete allocated memory
    delete[] contents;
}

A little contribution to the two-bit-fool's answer:

As described on the table on droid phones "orientationchange" event gets fired earlier than "resize" event thus blocking the next resize call (because of the if statement). Width property is still not set.

A workaround though maybe not a perfect one could be to not fire the "orientationchange" event. That can be archived by wrapping "orientationchange" event binding in "if" statement:

if (!navigator.userAgent.match(/android/i))
{
    window.addEventListener("orientationchange", checkOrientation, false);
}

Hope it helps

(tests were done on Nexus S)

A better way for setting multiple options:

setIcon/setLogo method will only work if you have set DisplayOptions Try this -

actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_HOME | ActionBar.DISPLAY_SHOW_TITLE);
actionBar.setIcon(R.drawable.ic_launcher);

You can also set options for displaying LOGO(just add constant ActionBar.DISPLAY_USE_LOGO). More information - displayOptions

I'm trying to cobble together a good answer from all the posts, so help me edit this:

Here is a method of doing this, although it does transforming the strings, and is not Unicode friendly, it should be portable which is a plus:

bool caseInsensitiveStringCompare( const std::string& str1, const std::string& str2 ) {
    std::string str1Cpy( str1 );
    std::string str2Cpy( str2 );
    std::transform( str1Cpy.begin(), str1Cpy.end(), str1Cpy.begin(), ::tolower );
    std::transform( str2Cpy.begin(), str2Cpy.end(), str2Cpy.begin(), ::tolower );
    return ( str1Cpy == str2Cpy );
}

From what I have read this is more portable than stricmp() because stricmp() is not in fact part of the std library, but only implemented by most compiler vendors.

To get a truly Unicode friendly implementation it appears you must go outside the std library. One good 3rd party library is the IBM ICU (International Components for Unicode)

Also boost::iequals provides a fairly good utility for doing this sort of comparison.

On my machine:

C:\Program Files (x86)\OpenERP 6.1-20121026-233219\PostgreSQL\data

It is important to highlight that the Property (MaximumErrorCount) that needs to be changed must be set as more than 0 (which is the default) in the Package level and not in the specific control that is showing the error (I tried this and it does not work!)

Be sure that in the Properties Window, the Pull down menu is set to "Package", then look for the property MaximumErrorCount to change it.

A bit strange but nice. I use String and not BigDecimal

def round(x: Double)(p: Int): Double = {
    var A = x.toString().split('.')
    (A(0) + "." + A(1).substring(0, if (p > A(1).length()) A(1).length() else p)).toDouble
}

Even though this has been answered multiple times.

If restarting an activity from a fragment, I would do it like so:

new Handler().post(new Runnable() {

         @Override
         public void run()
         {
            Intent intent = getActivity().getIntent();
            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_NO_ANIMATION);
            getActivity().overridePendingTransition(0, 0);
            getActivity().finish();

            getActivity().overridePendingTransition(0, 0);
            startActivity(intent);
        }
    });

So you might be thinking this is a little overkill? But the Handler posting allows you to call this in a lifecycle method. I've used this in onRestart/onResume methods when checking if the state has changed between the user coming back to the app. (installed something).

Without the Handler if you call it in an odd place it will just kill the activity and not restart it.

Feel free to ask any questions.

Cheers, Chris

It depends on the kind of test double you want to interact with:

• If you don't use doNothing and you mock an object, the real method is not called
• If you don't use doNothing and you spy an object, the real method is called

In other words, with mocking the only useful interactions with a collaborator are the ones that you provide. By default functions will return null, void methods do nothing.

I found some useful information in a forum page, quoted below.
From this, mainly the sentences in bold formatting, my answer is:

• Make a bash (shell) script version of your .bat file (like other
  answers, with \ changed to / in file paths). For example:

  # File "example.command":
  #!/bin/bash
  java -cp  ".;./supportlibraries/Framework_Core.jar; ...etc.
  

• Then rename it to have the Mac OS file extension .command.
  That should make the script run using the Terminal app.

• If the app user is going to use a bash script version of the file on Linux
  or run it from the command line, they need to add executable rights
  (change mode bits) using this command, in the folder that has the file:

  chmod +rx [filename].sh
  #or:# chmod +rx [filename].command
  

The forum page question:

Good day, [...] I wondering if there are some "simple" rules to write an equivalent
of the Windows (DOS) bat file. I would like just to click on a file and let it run.

Info from some answers after the question:

Write a shell script, and give it the extension ".command". For example:

#!/bin/bash 
printf "Hello World\n" 

- Mar 23, 2010, Tony T1.

The DOS .BAT file was an attempt to bring to MS-DOS something like the idea of the UNIX script.
In general, UNIX permits you to make a text file with commands in it and run it by simply flagging
the text file as executable (rather than give it a specific suffix). This is how OS X does it.

However, OS X adds the feature that if you give the file the suffix .command, Finder
will run Terminal.app to execute it (similar to how BAT files work in Windows).

Unlike MS-DOS, however, UNIX (and OS X) permits you to specify what interpreter is used
for the script. An interpreter is a program that reads in text from a file and does something
with it. [...] In UNIX, you can specify which interpreter to use by making the first line in the
text file one that begins with "#!" followed by the path to the interpreter. For example [...]

#!/bin/sh
echo Hello World

- Mar 23, 2010, J D McIninch.

Also, info from an accepted answer for Equivalent of double-clickable .sh and .bat on Mac?:

On mac, there is a specific extension for executing shell
scripts by double clicking them: this is .command.

You can seek until the end, then compute the difference:

std::streampos fileSize( const char* filePath ){

    std::streampos fsize = 0;
    std::ifstream file( filePath, std::ios::binary );

    fsize = file.tellg();
    file.seekg( 0, std::ios::end );
    fsize = file.tellg() - fsize;
    file.close();

    return fsize;
}

The link below, gives a very good tutorial, about playing mp3 files from a windows form with c#:

http://www.daniweb.com/software-development/csharp/threads/292695/playing-mp3-in-c

This link will lead you to a topic, which contains a lot information about how to play an mp3 song, using Windows forms. It also contains a lot of other projects, trying to achieve the same thing:

http://social.msdn.microsoft.com/forums/en-US/csharpgeneral/thread/3dbfb9a3-4e14-41d1-afbb-1790420706fe

For example use this code for .mp3:

WMPLib.WindowsMediaPlayer wplayer = new WMPLib.WindowsMediaPlayer();

wplayer.URL = "My MP3 file.mp3";
wplayer.Controls.Play();

Then only put the wplayer.Controls.Play(); in the Button_Click event.

For example use this code for .wav:

System.Media.SoundPlayer player = new System.Media.SoundPlayer();

player.SoundLocation = "Sound.wav";
player.Play();

Put the player.Play(); in the Button_Click event, and it will work.

A comprehensive list of browser versions supporting the async parameter is available here

You can use \t to create a tab in a file.

So, over SMTP when a message is submitted, the SMTP envelope (sender, recipients, etc.) is different from the actual data of the message.

The Sender header is used to identify in the message who submitted it. This is usually the same as the From header, which is who the message is from. However, it can differ in some cases where a mail agent is sending messages on behalf of someone else.

The Return-Path header is used to indicate to the recipient (or receiving MTA) where non-delivery receipts are to be sent.

For example, take a server that allows users to send mail from a web page. So, [email protected] types in a message and submits it. The server then sends the message to its recipient with From set to [email protected]. The actual SMTP submission uses different credentials, something like [email protected]. So, the sender header is set to [email protected], to indicate the From header doesn't indicate who actually submitted the message.

In this case, if the message cannot be sent, it's probably better for the agent to receive the non-delivery report, and so Return-Path would also be set to [email protected] so that any delivery reports go to it instead of the sender.

If you are doing just that, a form submission to send e-mail, then this is probably a direct parallel with how you'd set the headers.

As the error message says, non-default argument til should not follow default argument hgt.

Changing order of parameters (function call also be adjusted accordingly) or making hgt non-default parameter will solve your problem.

def a(len1, hgt=len1, til, col=0):

->

def a(len1, hgt, til, col=0):

UPDATE

Another issue that is hidden by the SyntaxError.

os.system accepts only one string parameter.

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

always use 'r' to get a raw string when you want to avoid escape.

test_file=open(r'c:\Python27\test.txt','r')

This is old, just update new tidyverse workflow not mentioned above.

library(tidyverse)

jobsAFAM1 <- tibble(
    date = seq.Date(from = as.Date('2017-01-01'),by = 'day', length.out = 5),
    Percent.Change = runif(5, 0,1)
    ) %>% 
    mutate(serial='jobsAFAM1')
jobsAFAM2 <- tibble(
    date = seq.Date(from = as.Date('2017-01-01'),by = 'day', length.out = 5),
    Percent.Change = runif(5, 0,1)
    ) %>% 
    mutate(serial='jobsAFAM2')
jobsAFAM <- bind_rows(jobsAFAM1, jobsAFAM2)

ggplot(jobsAFAM, aes(x=date, y=Percent.Change, col=serial)) + geom_line()

@Chris Njuguna

tidyr::gather() is the one in tidyverse workflow to turn wide dataframe to long tidy layout, then ggplot could plot multiple serials.

I have found that at times even verifying the settings under Options --> Statement Completion (the answer above) doesn't work. In this case, saving and restarting Visual Studio will re-enable Intellisense.

Finally, this link has a list of other ways to troubleshoot Intellisense, broken down by language (for more specific errors).

http://msdn.microsoft.com/en-us/library/vstudio/ecfczya1(v=vs.100).aspx

Try this add picasso lib jar file

Picasso.with(context)
                .load(ImageURL)
                .resize(width,height).noFade().into(imageView);

Update for 2021:

A lot has changed in 8ish years. Gradle continues to be a great tool. Now there's a whole section in the docs dedicated to configuring Integration Tests. I recommend you read the docs now.

Original Answer:

This took me a while to figure out and the online resources weren't great. So I wanted to document my solution.

This is a simple gradle build script that has an intTest source set in addition to the main and test source sets:

apply plugin: "java"

sourceSets {
    // Note that just declaring this sourceset creates two configurations.
    intTest {
        java {
            compileClasspath += main.output
            runtimeClasspath += main.output
        }
    }
}

configurations {
    intTestCompile.extendsFrom testCompile
    intTestRuntime.extendsFrom testRuntime
}

task intTest(type:Test){
    description = "Run integration tests (located in src/intTest/...)."
    testClassesDir = project.sourceSets.intTest.output.classesDir
    classpath = project.sourceSets.intTest.runtimeClasspath
}

My good friend MSDN can explain it to you, with an example

Here is the code in case the link or content changes in the future:

using System;

class DynamicInstanceList
{
    private static string instanceSpec = "System.EventArgs;System.Random;" +
        "System.Exception;System.Object;System.Version";

    public static void Main()
    {
        string[] instances = instanceSpec.Split(';');
        Array instlist = Array.CreateInstance(typeof(object), instances.Length);
        object item;
        for (int i = 0; i < instances.Length; i++)
        {
            // create the object from the specification string
            Console.WriteLine("Creating instance of: {0}", instances[i]);
            item = Activator.CreateInstance(Type.GetType(instances[i]));
            instlist.SetValue(item, i);
        }
        Console.WriteLine("\nObjects and their default values:\n");
        foreach (object o in instlist)
        {
            Console.WriteLine("Type:     {0}\nValue:    {1}\nHashCode: {2}\n",
                o.GetType().FullName, o.ToString(), o.GetHashCode());
        }
    }
}

// This program will display output similar to the following: 
// 
// Creating instance of: System.EventArgs 
// Creating instance of: System.Random 
// Creating instance of: System.Exception 
// Creating instance of: System.Object 
// Creating instance of: System.Version 
// 
// Objects and their default values: 
// 
// Type:     System.EventArgs 
// Value:    System.EventArgs 
// HashCode: 46104728 
// 
// Type:     System.Random 
// Value:    System.Random 
// HashCode: 12289376 
// 
// Type:     System.Exception 
// Value:    System.Exception: Exception of type 'System.Exception' was thrown. 
// HashCode: 55530882 
// 
// Type:     System.Object 
// Value:    System.Object 
// HashCode: 30015890 
// 
// Type:     System.Version 
// Value:    0.0 
// HashCode: 1048575

In my case adding Preamble to file solved my problem:

var data = Encoding.UTF8.GetBytes(csv);
var result = Encoding.UTF8.GetPreamble().Concat(data).ToArray();
return File(new MemoryStream(result), "application/octet-stream", "data.csv");

You do not need to use {{ }} inside of ng-bind-html-unsafe:

<div ng-bind-html-unsafe="preview_data.preview.embed.html"></div>

Here's an example: http://plnkr.co/edit/R7JmGIo4xcJoBc1v4iki?p=preview

The {{ }} operator is essentially just a shorthand for ng-bind, so what you were trying amounts to a binding inside a binding, which doesn't work.

1. Like the rest of the users say it is easiest to do this with CURL.

2. If curl isn't available for you then maybe http://netevil.org/blog/2006/nov/http-post-from-php-without-curl

3. If that isn't possible you could write sockets yourself http://petewarden.typepad.com/searchbrowser/2008/06/how-to-post-an.html

From the official Laravel 5.2 Upgrade Notes:

If you are using the config:cache command during deployment, you must make sure that you are only calling the env function from within your configuration files, and not from anywhere else in your application.

If you are calling env from within your application, it is strongly recommended you add proper configuration values to your configuration files and call env from that location instead, allowing you to convert your env calls to config calls.

Reference: https://laravel.com/docs/5.2/upgrade#upgrade-5.2.0

This option was introduced in order to remove the need to deploy very large PIAs (Primary Interop Assemblies) for interop.

It simply embeds the managed bridging code used that allows you to talk to unmanaged assemblies, but instead of embedding it all it only creates the stuff you actually use in code.

Read more in Scott Hanselman's blog post about it and other VS improvements here.

As for whether it is advised or not, I'm not sure as I don't need to use this feature. A quick web search yields a few leads:

• Check your Embed Interop Types flag when doing Visual Studio extensibility work
• The Pain of deploying Primary Interop Assemblies

The only risk of turning them all to false is more deployment concerns with PIA files and a larger deployment if some of those files are large.

In package.json set flag --base-href to relative path:

"script": {
    "build": "ng build --base-href ./"
}

you may also like this

var Grp = Model.GroupBy(item => item.Order.Customer)
      .Select(group => new 
        { 
             Customer = Model.First().Customer, 
             CustomerId= group.Key,  
             Orders= group.ToList() 
       })
      .ToList();

I had the same problem, and the registry answers here didn't work.

I had a browser control in new version of my program that worked fine on XP, failed in Windows 7 (64 bit). The old version worked on both XP and Windows 7.

The webpage displayed in the browser uses some strange plugin for showing old SVG maps (I think its a Java applet).

Turns out the problem is related to DEP protection in Windows 7.

Old versions of dotnet 2 didn't set the DEP required flag in the exe, but from dotnet 2, SP 1 onwards it did (yep, the compiling behaviour and hence runtime behaviour of exe changed depending on which machine you compiled on, nice ...).

It is documented on a MSDN blog NXCOMPAT and the C# compiler. To quote : This will undoubtedly surprise a few developers...download a framework service pack, recompile, run your app, and you're now getting IP_ON_HEAP exceptions.

Adding the following to the post build in Visual Studio, turns DEP off for the exe, and everything works as expected:

all "$(DevEnvDir)..\tools\vsvars32.bat"
editbin.exe /NXCOMPAT:NO "$(TargetPath)"

• Editbin documentation
• Dumpbin /headers will display the DEP setting on a exe.

These are all a matter of convenience.

Basically, if the question were 'Do we need to use body-parser?' The answer is 'No'. We can come up with the same information from the client-post-request using a more circuitous route that will generally be less flexible and will increase the amount of code we have to write to get the same information.

This is kind of the same as asking 'Do we need to use express to begin with?' Again, the answer there is no, and again, really it all comes down to saving us the hassle of writing more code to do the basic things that express comes with 'built-in'.

On the surface - body-parser makes it easier to get at the information contained in client requests in a variety of formats instead of making you capture the raw data streams and figuring out what format the information is in, much less manually parsing that information into useable data.

send the WindowSettings as the parameter of the constructor of the DialogSettingsCancel and then on the button1_Click when yes is pressed call the close method of both of them.

public class DialogSettingsCancel
{
    WindowSettings parent;

    public DialogSettingsCancel(WindowSettings settings)
    {
        this.parent = settings;        
    }

    private void button1_Click(object sender, EventArgs e)
    {
        //Code to trigger when the "Yes"-button is pressed.
        this.parent.Close();
        this.Close();
    }
}

I think you've missed the point of access control.

A quick recap on why CORS exists: Since JS code from a website can execute XHR, that site could potentially send requests to other sites, masquerading as you and exploiting the trust those sites have in you(e.g. if you have logged in, a malicious site could attempt to extract information or execute actions you never wanted) - this is called a CSRF attack. To prevent that, web browsers have very stringent limitations on what XHR you can send - you are generally limited to just your domain, and so on.

Now, sometimes it's useful for a site to allow other sites to contact it - sites that provide APIs or services, like the one you're trying to access, would be prime candidates. CORS was developed to allow site A(e.g. paste.ee) to say "I trust site B, so you can send XHR from it to me". This is specified by site A sending "Access-Control-Allow-Origin" headers in its responses.

In your specific case, it seems that paste.ee doesn't bother to use CORS. Your best bet is to contact the site owner and find out why, if you want to use paste.ee with a browser script. Alternatively, you could try using an extension(those should have higher XHR privileges).

If you have installed Android Studio more than one time, the command prompt or PowerShell assigned on the first one and maybe you are running the second one. So, browse for Android Studio, if you have more than one installation, delete the first one. Then, download the Plugins in Android Studio by following theese steps.

Step 1:Studio --> File --> Settings --> Plugins --> Browse Repositories

Step 2: Search for Flutter and download it

Step 3: When you're done restart Android Studio.

You can use nodebrew. It can switch node versions too.

Append to ~/.bashrc a section like this:

if [ "$subshell" = 'true' ]
then
    # commands to execute only on a subshell
    date
fi
alias sub='subshell=true bash'

Then you can start the subshell with sub.

Now, you can take advantage of ES6 syntax and just do:

let array = [1, 2];
console.log([...array, 3]);

keeping the original array immutable.

All credits to @Martijn Pieters in the comments:

You can use the function last_insert_rowid():

The last_insert_rowid() function returns the ROWID of the last row insert from the database connection which invoked the function. The last_insert_rowid() SQL function is a wrapper around the sqlite3_last_insert_rowid() C/C++ interface function.

See this TechNet article: Runas command documentation

From a command prompt:

C:\> runas /user:<localmachinename>\administrator cmd

Or, if you're connected to a domain:

C:\> runas /user:<DomainName>\<AdministratorAccountName> cmd

I am use HeidiSQL is a useful and reliable tool designed for web developers using the popular MySQL server.

In HeidiSQL you can push shift + ctrl + f and you can find text on the server in all tables. This option is very usefully.

You could try something like this:

SELECT ...
FROM (
    SELECT f1,f2,f3 FROM table1
    UNION
    SELECT f1,f2,f3 FROM table2
)
WHERE ...

A ternary will suffice. change:

gotdata = dlist[1]

to

gotdata = dlist[1] if len(dlist) > 1 else 'null'

this is a shorter way of expressing

if len(dlist) > 1:
    gotdata = dlist[1]
else: 
    gotdata = 'null'

This doesn't sound intuitive but select the column you're having the issue with and use "text to column" and just press finish. This is the suggested answer from Excel help as well. For some reason in converts text to numbers.

I tend not to use the .on() syntax, if not necessary. For example you can migrate easier like this:

old:

$('.myButton').live('click', function);

new:

$('.myButton').click(function)

Here is a list of valid event handlers: https://api.jquery.com/category/forms/

That is because you are trying to access the plugin before it's loaded. You should try making a call to it when the DOM is loaded by surrounding it with this:

$(document).ready(function(){
    $("#colorpicker").colorpicker();
}

In the below mentioned link, ChromeDriver.exe for Windows 32 bit exist.

http://chromedriver.storage.googleapis.com/index.html?path=2.24/

It is working for me in Win7 64 bit.

According to the documentation return false; should do the job.

We can break the $.each() loop [..] by making the callback function return false.

Return false in the callback:

function callback(indexInArray, valueOfElement) {
  var booleanKeepGoing;

  this; // == valueOfElement (casted to Object)

  return booleanKeepGoing; // optional, unless false 
                           // and want to stop looping
}

BTW, continue works like this:

Returning non-false is the same as a continue statement in a for loop; it will skip immediately to the next iteration.

declare @DBRoleName varchar(40) = 'yourUserName'
SELECT 'GRANT ' + dbprm.permission_name + ' ON ' + OBJECT_SCHEMA_NAME(major_id) + '.' + OBJECT_NAME(major_id) + ' TO ' + dbrol.name + char(13) COLLATE Latin1_General_CI_AS
from sys.database_permissions dbprm
join sys.database_principals dbrol on
dbprm.grantee_principal_id = dbrol.principal_id
where dbrol.name = @DBRoleName

http://www.sqlserver-dba.com/2014/10/how-to-script-database-role-permissions-and-securables.html

I found this to be an excellent solution for generating a script to replicate access between environments

Not programming related, but I'll answer anyway. It's in /etc/hosts.

You can change it with a simple text editor such as nano.

(Obviously you would need a jailbroken iphone for this)

As wtsang02 said, using HTML is an expensive overhead. Just use the native solution. If you don't have to modify the string, just use SpannableString, not SpannableStringBuilder.

String boldText = "id";
String normalText = "name";
SpannableString str = new SpannableString(boldText + normalText);
str.setSpan(new StyleSpan(Typeface.BOLD), 0, boldText.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
textView.setText(str);

No, your algorithm works but your Write operation is misplaced within the outer loop.

int[] arr = { 800, 11, 50, 771, 649, 770, 240, 9 };

int temp = 0;

for (int write = 0; write < arr.Length; write++) {
    for (int sort = 0; sort < arr.Length - 1; sort++) {
        if (arr[sort] > arr[sort + 1]) {
            temp = arr[sort + 1];
            arr[sort + 1] = arr[sort];
            arr[sort] = temp;
        }
    }
}

for (int i = 0; i < arr.Length; i++)
    Console.Write(arr[i] + " ");

Console.ReadKey();

The way of changing the name for iOS and Android is clearly mentioned in the documentation as follows:

• Build and release an Android app
• Build and release an iOS app

But, the case of iOS after you change the Display Name from Xcode, you are not able to run the application in the Flutter way, like flutter run.

Because the Flutter run expects the app name as Runner. Even if you change the name in Xcode, it doesn't work.

So, I fixed this as follows:

Move to the location on your Flutter project, ios/Runner.xcodeproj/project.pbxproj, and find and replace all instances of your new name with Runner.

Then everything should work in the flutter run way.

But don't forget to change the name display name on your next release time. Otherwise, the App Store rejects your name.

Why use normal jquery ajax feature. Why not use jquery ajax form plugin, which post the form data by ajax to the form action link.

Check it here:

http://malsup.com/jquery/form/#getting-started

It is very easy to use and support several data formats including json, html xml etc. Checkout the example and you will find it very easy to use.

Thank you

My compact version:

<script type="text/javascript">
$(window).load(function () {
    var frame = $('iframe').get(0);
    if (frame != null) {
        var frmHead = $(frame).contents().find('head');
        if (frmHead != null) {
            frmHead.append($('style, link[rel=stylesheet]').clone()); // clone existing css link
            //frmHead.append($("<link/>", { rel: "stylesheet", href: "/styles/style.css", type: "text/css" })); // or create css link yourself
        }
    }   
});
</script>

However, sometimes the iframe is not ready on window loaded, so there is a need of using a timer.

Ready-to-use code (with timer):

<script type="text/javascript">
var frameListener;
$(window).load(function () {
    frameListener = setInterval("frameLoaded()", 50);
});
function frameLoaded() {
    var frame = $('iframe').get(0);
    if (frame != null) {
        var frmHead = $(frame).contents().find('head');
        if (frmHead != null) {
            clearInterval(frameListener); // stop the listener
            frmHead.append($('style, link[rel=stylesheet]').clone()); // clone existing css link
            //frmHead.append($("<link/>", { rel: "stylesheet", href: "/styles/style.css", type: "text/css" })); // or create css link yourself
        }
    }
}
</script>

...and jQuery link:

<script src="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.9.1.min.js" type="text/javascript"></script>

You'll have to use a favicon for your page. put this in the head-tag: <link rel="shortcut icon" href="/favicon.png" type="image/png">

where favicon.png is preferably a 16x16 png image.

source: Adding a favicon to a static HTML page

For all people who speak C, take a look at these two macros:

// calculate the size of 'output' buffer required for a 'input' buffer of length x during Base64 encoding operation
#define B64ENCODE_OUT_SAFESIZE(x) ((((x) + 3 - 1)/3) * 4 + 1) 

// calculate the size of 'output' buffer required for a 'input' buffer of length x during Base64 decoding operation
#define B64DECODE_OUT_SAFESIZE(x) (((x)*3)/4) 

Taken from here.

For switching to the database.

By:

use {your_database_name} example:

use friends

where friends is the name of your database.

Then write:

db.getCollectionNames()
show collections

This will give you the name of collections.

Change the port 80 to port 8080 and restart all services and access like localhost:8080/

It will work fine.

I had the same problem, but nothing above worked...try a really simple solution...

Back up your .htaccess file. Delete it from your root directory. Then try accessing those directories. Its likely that whatever rewrite conditions you had in your file were causing those access issues. The index page should be picked up automatically on most hosts. :P

The simplest solution is:

Install:

npm install --save @fortawesome/fontawesome-svg-core
npm install --save @fortawesome/free-solid-svg-icons
npm install --save @fortawesome/react-fontawesome

Import:

import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import { faThumbsUp } from '@fortawesome/free-solid-svg-icons';

Use:

<FontAwesomeIcon icon={ faThumbsUp }/>

• json.loads take a string as input and returns a dictionary as output.
• json.dumps take a dictionary as input and returns a string as output.

If you need to convert JSON data into a python object, it can do so with Python3, in one line without additional installations, using SimpleNamespace and object_hook:

from string

import json
from types import SimpleNamespace

string = '{"foo":3, "bar":{"x":1, "y":2}}'

# Parse JSON into an object with attributes corresponding to dict keys.
x = json.loads(string, object_hook=lambda d: SimpleNamespace(**d))

print(x.foo)
print(x.bar.x)
print(x.bar.y)

output:

3
1
2

from file:

JSON object: data.json

{
    "foo": 3,
    "bar": {
        "x": 1,
        "y": 2
    }
}

import json
from types import SimpleNamespace

with open("data.json") as fh:
    string = fh.read()

# Parse JSON into an object with attributes corresponding to dict keys.
x = json.loads(string, object_hook=lambda d: SimpleNamespace(**d))

print(x.foo)
print(x.bar.x)
print(x.bar.y)

output:

3
1
2

from requests

import json
from types import SimpleNamespace
import requests

r = requests.get('https://api.github.com/users/MilovanTomasevic')

# Parse JSON into an object with attributes corresponding to dict keys.
x = json.loads(r.text, object_hook=lambda d: SimpleNamespace(**d))

print(x.name)
print(x.company)
print(x.blog)

output:

Milovan Tomaševic
NLB
milovantomasevic.com

For more beautiful and faster access to JSON response from API, take a look at this response.

They are signals that application developers use. The kernel shouldn't ever send these to a process. You can send them using kill(2) or using the utility kill(1).

If you intend to use signals for synchronization you might want to check real-time signals (there's more of them, they are queued, their delivery order is guaranteed etc).

Use msexcel-builder. Install it with:

npm install msexcel-builder

Then:

// Create a new workbook file in current working-path 
var workbook = excelbuilder.createWorkbook('./', 'sample.xlsx')

// Create a new worksheet with 10 columns and 12 rows 
var sheet1 = workbook.createSheet('sheet1', 10, 12);

// Fill some data 
sheet1.set(1, 1, 'I am title');
for (var i = 2; i < 5; i++)
  sheet1.set(i, 1, 'test'+i);

// Save it 
workbook.save(function(ok){
  if (!ok) 
    workbook.cancel();
  else
    console.log('congratulations, your workbook created');
});

If you want to use the call operator, the arguments can be an array stored in a variable:

$prog = 'c:\windows\system32\cmd.exe'
$myargs = '/c','dir','/x'
& $prog $myargs

The call operator works with ApplicationInfo objects too.

$prog = get-command cmd
$myargs = -split '/c dir /x'
& $prog $myargs

I use the following vba code where filename is a string containing the filename I want, and Function RemoveSpecialCharactersAndTruncate is defined below:

worksheet1.Name = RemoveSpecialCharactersAndTruncate(filename)

'Function to remove special characters from file before saving

Private Function RemoveSpecialCharactersAndTruncate$(ByVal FormattedString$)
    Dim IllegalCharacterSet$
    Dim i As Integer
'Set of illegal characters
    IllegalCharacterSet$ = "*." & Chr(34) & "//\[]:;|=,"
    'Iterate through illegal characters and replace any instances
    For i = 1 To Len(IllegalCharacterSet) - 1
        FormattedString$ = Replace(FormattedString$, Mid(IllegalCharacterSet, i, 1), "")
    Next
    'Return the value capped at 31 characters (Excel limit)
    RemoveSpecialCharactersAndTruncate$ = Left(FormattedString$, _
                           Application.WorksheetFunction.Min(Len(FormattedString), 31))
End Function

If you're getting source in Content Use the following method

try
{
    var response = restClient.Execute<List<EmpModel>>(restRequest);

    var jsonContent = response.Content;

    var data = JsonConvert.DeserializeObject<List<EmpModel>>(jsonContent);

    foreach (EmpModel item in data)
    {
        listPassingData?.Add(item);
    }
}
catch (Exception ex)
{
    Console.WriteLine($"Data get mathod problem {ex} ");
}

You can't. You can use primitives (int, char, short, byte) and String (Strings in java 7 only) in switch. primitives can't be null.
Check i in separate condition before switch.

$(document).ready(function(){
                            var image = $("#fix_img");
                            var w = image.width();
                            var h = image.height();
                            var mr = 274/200;
                            var ir = w/h
                            if(ir > mr){
                                image.height(200);
                                image.width(200*ir);
                            } else{
                                image.width(274);
                                image.height(274/ir);
                            }
                        }); 

// This code helps to show image with 200*274 dimention

You can add property to your model as follows:

    public string DetailsClass { get { return Details.Count > 0 ? "show" : "hide" } }

and then your view will be simpler and will contain no logic at all:

    <div class="details @Model.DetailsClass"/>

This will work even with many classes and will not render class if it is null:

    <div class="@Model.Class1 @Model.Class2"/>

with 2 not null properties will render:

    <div class="class1 class2"/>

if class1 is null

    <div class=" class2"/>

If you're using Java 9, there's an easy way with less number of lines without needing to initialize or add method.

List<String> list = List.of("first", "second", "third");

This worked perfectly for me. Since this is for personal use, I used Firefox as my browser.

 Dim url As String
    url = "http://www.google.com"
    Process.Start("Firefox", url)

The below logic is the solution without modifying the original list

List<String> str1 = new ArrayList<String>();
str1.add("A");
str1.add("B");
str1.add("C");
str1.add("D");

List<String> str2 = new ArrayList<String>();
str2.add("D");
str2.add("E");

List<String> str3 = str1.stream()
                        .filter(item -> !str2.contains(item))
                        .collect(Collectors.toList());

str1 // ["A", "B", "C", "D"]
str2 // ["D", "E"]
str3 // ["A", "B", "C"]

select salary from EmployeeDetails order by salary desc limit 1 offset (n-1).

If you want to find 2nd highest than replace n with that 2.

try ppretty:

from ppretty import ppretty


class Animal(object):
    def __init__(self):
        self.legs = 2
        self.name = 'Dog'
        self.color= 'Spotted'
        self.smell= 'Alot'
        self.age  = 10
        self.kids = 0


print ppretty(Animal(), seq_length=10)

Output:

__main__.Animal(age = 10, color = 'Spotted', kids = 0, legs = 2, name = 'Dog', smell = 'Alot')

You have two issues in your code.. First you need reference to capture the element on click. Try adding another parameter to your function to reference this. Also active class is for li element initially while you are tryin to add it to "a" element in the function. try this..

<div class="row" style="padding-left:21px;">
 <ul class="nav nav-tabs" style="padding-left:40px;">
      <li class="active filter"><a href="#month" onclick="Data('month',this)">This Month</a></li>
      <li class="filter"><a href="#year" onclick="Data('year',this)">Year</a></li>
      <li class="filter"><a href="#last60"  onclick="Data('last60',this)">60 Days</a></li>
      <li class="filter"><a href="#last90"  onclick="Data('last90',this)">90 Days</a></li>
    </ul> 

</div>

<script>
  function Data(string,element)
    { 
      //1. get some data from server according to month year etc.,
      //2. unactive all the remaining li's and make the current clicked element active by adding "active" class to the element
      $('.filter').removeClass('active');

      $(element).parent().addClass('active') ;

    } 
</script>

It seems mysql handles the type casting gracefully with SELECT statements. The shop_id field is of type varchar but the select statements works

select * from shops where shop_id = 26244317283;

But when you try updating the fields

update stores set store_url = 'https://test-url.com' where shop_id = 26244317283;

It fails with error Truncated incorrect DOUBLE value: '1t5hxq9'

You need to put the shop_id 26244317283 in quotes '26244317283' for the query to work since the field is of type varchar not int

update stores set store_url = 'https://test-url.com' where shop_id = '26244317283';

You can fix the . form by using --exclude:

tar -czf workspace.tar.gz --exclude=workspace.tar.gz .

The selected answer would work for as long as you know the key itself that you want to delete but if it should be truly dynamic you would need to use the [] notation instead of the dot notation.

For example:

var keyToDelete = "key1";
var myObj = {"test": {"key1": "value", "key2": "value"}}

//that will not work.
delete myObj.test.keyToDelete 

instead you would need to use:

delete myObj.test[keyToDelete];

Substitute the dot notation with [] notation for those values that you want evaluated before being deleted.

On Edge

if(!NodeList.prototype.forEach) {
  NodeList.prototype.forEach = function(fn, scope) {
    for(var i = 0, len = this.length; i < len; ++i) {
      fn.call(scope, this[i], i, this);
    }
  }
}

function removeOptions(obj) {
    while (obj.options.length) {
        obj.remove(0);
    }
}

You cannot do this on multiple fields. You can also look for this.

In pyspark,SparkSql syntax:

where column_n like 'xyz%'

might not work.

Use:

where column_n RLIKE '^xyz' 

This works perfectly fine.

I do stuck with same problem at time of installing magento2 while it require ~7.3.0 but I have 7.4.1. So, I downgraded php version using this method.

Step 1: Download Php version from here nts version https://windows.php.net/downloads/releases/archives/ and paste this version to c:\xampp\ as named 'php71'

Step 2: Setup Virtual Host Environment and do some other changes. Go to "c:\xampp/\pache\conf\extra\httpd-vhosts.conf" and put code snippet at the end of line

<VirtualHost 127.0.0.1:80>
    DocumentRoot "C:/xampp/htdocs/magento/crashcourse/"
    ServerName magento2.test
    <Directory "C:/xampp/htdocs/magento/crashcourse/">
        Require all granted    
    </Directory>
    <FilesMatch "\.php$">
        SetHandler application/x-httpd-php71-cgi
    </FilesMatch>
</VirtualHost>

GO to "C:\Windows\System32\drivers\etc\hosts" then edit the file with using admin privileges then add the code at end of line.

127.0.0.1 magento2.test

Go to you Apache Config file "c:/xampp/apache/conf/extra/httpd-xampp.conf" and paste below code at end of the line

ScriptAlias /php71 "C:/xampp/php71"
Action application/x-httpd-php71-cgi /php71/php-cgi.exe
<Directory "C:/xampp/php71">
    AllowOverride None
    Options None
    Require all denied
    <Files "php-cgi.exe">
        Require all granted
    </Files>
    SetEnv PHPRC "C:/xampp/php71"
</Directory>

Now, all set. Go to url: http://magento2.test all work fine!

POJO = Plain Old Java Object. It has properties, getters and setters for respective properties. It may also override Object.toString() and Object.equals().

Java Beans : See Wiki link.

Normal Class : Any java Class.

I don't know if you ever found an answer to this but I DIDN'T need MAMP PRO to do this. Simply goto the correct path by following what others have said. It's something like...

MAMP-> bin-> php-> php(your php version)-> conf-> php.ini

The key here is where you're editing the file. I was making the mistake of editing the commented part of the ini file. You actually have to scroll down to LINE #472 where it says "display_errors = Off and change it to On. Hope this helps any

I have found another way to read an image size (more generic). You can use ImageIO class in cooperation with ImageReaders. Here is the sample code:

private Dimension getImageDim(final String path) {
    Dimension result = null;
    String suffix = this.getFileSuffix(path);
    Iterator<ImageReader> iter = ImageIO.getImageReadersBySuffix(suffix);
    if (iter.hasNext()) {
        ImageReader reader = iter.next();
        try {
            ImageInputStream stream = new FileImageInputStream(new File(path));
            reader.setInput(stream);
            int width = reader.getWidth(reader.getMinIndex());
            int height = reader.getHeight(reader.getMinIndex());
            result = new Dimension(width, height);
        } catch (IOException e) {
            log(e.getMessage());
        } finally {
            reader.dispose();
        }
    } else {
        log("No reader found for given format: " + suffix));
    }
    return result;
}

Note that getFileSuffix is method that returns extension of path without "." so e.g.: png, jpg etc. Example implementation is:

private String getFileSuffix(final String path) {
    String result = null;
    if (path != null) {
        result = "";
        if (path.lastIndexOf('.') != -1) {
            result = path.substring(path.lastIndexOf('.'));
            if (result.startsWith(".")) {
                result = result.substring(1);
            }
        }
    }
    return result;
}

This solution is very quick as only image size is read from the file and not the whole image. I tested it and there is no comparison to ImageIO.read performance. I hope someone will find this useful.

Using prepared statements with parametrised values is not simply another way to dynamically create a string of SQL. You create a prepared statement at the database, and then send the parameter values alone.

So what is probably sent to the database will be a PREPARE ..., then SET ... and finally EXECUTE ....

You won't be able to get some SQL string like SELECT * FROM ..., even if it would produce equivalent results, because no such query was ever actually sent to the database.

Just use $evalAsync instead of $apply.

You'll want to use a number of layout managers to help you achieve the basic results you want.

Check out A Visual Guide to Layout Managers for a comparision.

You could use a GridBagLayout but that's one of the most complex (and powerful) layout managers available in the JDK.

You could use a series of compound layout managers instead.

I'd place the graphics component and text area on a single JPanel, using a BorderLayout, with the graphics component in the CENTER and the text area in the SOUTH position.

I'd place the text field and button on a separate JPanel using a GridBagLayout (because it's the simplest I can think of to achieve the over result you want)

I'd place these two panels onto a third, master, panel, using a BorderLayout, with the first panel in the CENTER and the second at the SOUTH position.

But that's me

I have found else useful for dealing with a possibly incorrect config file:

try:
    value, unit = cfg['lock'].split()
except ValueError:
    msg = 'lock monitoring config must consist of two words separated by white space'
    self.log('warn', msg)
else:
     # get on with lock monitoring if config is ok

An exception reading the lock config disables lock monitoring and ValueErrors log a helpful warning message.

We started getting this error on the production server after deploying the application migrated from 4.6.1 to 4.7.2.

We noticed that the .NET framework 4.7.2 was not installed there. In order to solve this issue we did the following steps:

1. Installed the .NET Framework 4.7.2 from:

   https://support.microsoft.com/en-us/help/4054530/microsoft-net-framework-4-7-2-offline-installer-for-windows

2. Restarted the machine

3. Confirmed the .NET Framework version with the help of How do I find the .NET version?

Running the application again with the .Net Framework 4.7.2 version installed on the machine fixed the issue.

If you want to save a file to a particular DIRECTORY and FILENAME here is some simple example. It also checks to see if the directory has or has not been created.

import os.path
directory = './html/'
filename = "file.html"
file_path = os.path.join(directory, filename)
if not os.path.isdir(directory):
    os.mkdir(directory)
file = open(file_path, "w")
file.write(html)
file.close()

Hope this helps you!

Try the following

^([0-2][0-3]:[0-5][0-9])|(0?[0-9]:[0-5][0-9])$

Note: I was assuming the javascript regex engine. If it's different than that please let me know.

This guy appears to have succeeded in having over 1 million concurrent connections on a single Node.js server.

http://blog.caustik.com/2012/08/19/node-js-w1m-concurrent-connections/

It's not clear to me exactly how many ports he was using though.

Here are a couple of reasons for having different naming of C vs C++ headers:

• Automatic code formatting, you might have different guidelines for formatting C and C++ code. If the headers are separated by extension you can set your editor to apply the appropriate formatting automatically
• Naming, I've been on projects where there were libraries written in C and then wrappers had been implemented in C++. Since the headers usually had similar names, i.e. Feature.h vs Feature.hpp, they were easy to tell apart.
• Inclusion, maybe your project has more appropriate versions available written in C++ but you are using the C version (see above point). If headers are named after the language they are implemented in you can easily spot all the C-headers and check for C++ versions.

Remember, C is not C++ and it can be very dangerous to mix and match unless you know what you are doing. Naming your sources appropriately helps you tell the languages apart.

You can use this simple code in loop by incrementing count

cv2.imwrite("C:\Sharat\Python\Images\frame%d.jpg" % count, image)

images will be saved in the folder by name line frame0.jpg, frame1.jpg frame2.jpg etc..

I found the default JS date formatting didn't work.

So I used toLocaleString with options

const event = new Date();
const options = { dateStyle: 'short' };
const date = event.toLocaleString('en', options);

to get: DD/MM/YYYY format

See docs for more formatting options: https://www.w3schools.com/jsref/jsref_tolocalestring.asp

You can either use the prepareStatement method taking an additional int parameter

PreparedStatement ps = con.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS)

For some JDBC drivers (for example, Oracle) you have to explicitly list the column names or indices of the generated keys:

PreparedStatement ps = con.prepareStatement(sql, new String[]{"USER_ID"})

You can also call the show() function after each plot. e.g

   plt.plot(a)
   plt.show()
   plt.plot(b)
   plt.show()

I am going to give you a simplistic answer that hopefully will help you with VBA in general. The easiest way to learn how VBA works and how to reference and access elements is to record your macro then edit it in the VBA editor. This is how I learned VBA. It is based on visual basic so all the programming conventions of VB apply. Recording the macro lets you see how to access and do things.

you could use something like this:

var result = 0
Sheets("Sheet1").Select
result = Range("A1").Value * Range("B1").Value
Sheets("Sheet2").Select
Range("D1").Value = result

Alternatively you can also reference a cell using Cells(1,1).Value This way you can set variables and increment them as you wish. I think I am just not clear on exactly what you are trying to do but i hope this helps.

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings] "ProxySettingsPerUser"=dword:00000000

Use typings to access node functions from TypeScript:

typings install env~node --global

If you don't have typings install it:

npm install typings --global

The :: operator is called the scope-resolution operator and does just that, it resolves scope. So, by prefixing a type-name with this, it tells your compiler to look in the global namespace for the type.

Example:

int count = 0;

int main(void) {
  int count = 0;
  ::count = 1;  // set global count to 1
  count = 2;    // set local count to 2
  return 0;
}

You can access characters in strings in the same way as you would access an array index, e.g.

$length = strlen($string);
$thisWordCodeVerdeeld = array();
for ($i=0; $i<$length; $i++) {
    $thisWordCodeVerdeeld[$i] = $string[$i];
}

You could also do:

$thisWordCodeVerdeeld = str_split($string);

However you might find it is easier to validate the string as a whole string, e.g. using regular expressions.

<?php

echo '<div>
 <h3><a href="#">First</a></h3>
 <div>Lorem ipsum dolor sit amet.</div>
</div>
<div>';

?>

Just put it in single quotes.

Instead of style changes, just put these two lines of code to your activity.

getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeAsUpIndicator(R.drawable.arrowleft);

merge into MY_TABLE tgt
using (select [expressions]
         from dual ) src
   on (src.key_condition = tgt.key_condition)
when matched then 
     update tgt
        set tgt.column1 = src.column1 [,...]
when not matched then 
     insert into tgt
        ([list of columns])
     values
        (src.column1 [,...]);

"usecols" should help, use range of columns (as per excel worksheet, A,B...etc.) below are the examples

1. Selected Columns

df = pd.read_excel(file_location,sheet_name='Sheet1', usecols="A,C,F")

2. Range of Columns and selected column

df = pd.read_excel(file_location,sheet_name='Sheet1', usecols="A:F,H")

3. Multiple Ranges

df = pd.read_excel(file_location,sheet_name='Sheet1', usecols="A:F,H,J:N")

4. Range of columns

df = pd.read_excel(file_location,sheet_name='Sheet1', usecols="A:N")

What Is It?

This exception means that you're trying to access a collection item by index, using an invalid index. An index is invalid when it's lower than the collection's lower bound or greater than or equal to the number of elements it contains.

When It Is Thrown

Given an array declared as:

byte[] array = new byte[4];

You can access this array from 0 to 3, values outside this range will cause IndexOutOfRangeException to be thrown. Remember this when you create and access an array.

Array Length
In C#, usually, arrays are 0-based. It means that first element has index 0 and last element has index Length - 1 (where Length is total number of items in the array) so this code doesn't work:

array[array.Length] = 0;

Moreover please note that if you have a multidimensional array then you can't use Array.Length for both dimension, you have to use Array.GetLength():

int[,] data = new int[10, 5];
for (int i=0; i < data.GetLength(0); ++i) {
    for (int j=0; j < data.GetLength(1); ++j) {
        data[i, j] = 1;
    }
}

Upper Bound Is Not Inclusive
In the following example we create a raw bidimensional array of Color. Each item represents a pixel, indices are from (0, 0) to (imageWidth - 1, imageHeight - 1).

Color[,] pixels = new Color[imageWidth, imageHeight];
for (int x = 0; x <= imageWidth; ++x) {
    for (int y = 0; y <= imageHeight; ++y) {
        pixels[x, y] = backgroundColor;
    }
}

This code will then fail because array is 0-based and last (bottom-right) pixel in the image is pixels[imageWidth - 1, imageHeight - 1]:

pixels[imageWidth, imageHeight] = Color.Black;

In another scenario you may get ArgumentOutOfRangeException for this code (for example if you're using GetPixel method on a Bitmap class).

Arrays Do Not Grow
An array is fast. Very fast in linear search compared to every other collection. It is because items are contiguous in memory so memory address can be calculated (and increment is just an addition). No need to follow a node list, simple math! You pay this with a limitation: they can't grow, if you need more elements you need to reallocate that array (this may take a relatively long time if old items must be copied to a new block). You resize them with Array.Resize<T>(), this example adds a new entry to an existing array:

Array.Resize(ref array, array.Length + 1);

Don't forget that valid indices are from 0 to Length - 1. If you simply try to assign an item at Length you'll get IndexOutOfRangeException (this behavior may confuse you if you think they may increase with a syntax similar to Insert method of other collections).

Special Arrays With Custom Lower Bound
First item in arrays has always index 0. This is not always true because you can create an array with a custom lower bound:

var array = Array.CreateInstance(typeof(byte), new int[] { 4 }, new int[] { 1 });

In that example, array indices are valid from 1 to 4. Of course, upper bound cannot be changed.

Wrong Arguments
If you access an array using unvalidated arguments (from user input or from function user) you may get this error:

private static string[] RomanNumbers =
    new string[] { "I", "II", "III", "IV", "V" };

public static string Romanize(int number)
{
    return RomanNumbers[number];
}

Unexpected Results
This exception may be thrown for another reason too: by convention, many search functions will return -1 (nullables has been introduced with .NET 2.0 and anyway it's also a well-known convention in use from many years) if they didn't find anything. Let's imagine you have an array of objects comparable with a string. You may think to write this code:

// Items comparable with a string
Console.WriteLine("First item equals to 'Debug' is '{0}'.",
    myArray[Array.IndexOf(myArray, "Debug")]);

// Arbitrary objects
Console.WriteLine("First item equals to 'Debug' is '{0}'.",
    myArray[Array.FindIndex(myArray, x => x.Type == "Debug")]);

This will fail if no items in myArray will satisfy search condition because Array.IndexOf() will return -1 and then array access will throw.

Next example is a naive example to calculate occurrences of a given set of numbers (knowing maximum number and returning an array where item at index 0 represents number 0, items at index 1 represents number 1 and so on):

static int[] CountOccurences(int maximum, IEnumerable<int> numbers) {
    int[] result = new int[maximum + 1]; // Includes 0

    foreach (int number in numbers)
        ++result[number];

    return result;
}

Of course, it's a pretty terrible implementation but what I want to show is that it'll fail for negative numbers and numbers above maximum.

How it applies to List<T>?

Same cases as array - range of valid indexes - 0 (List's indexes always start with 0) to list.Count - accessing elements outside of this range will cause the exception.

Note that List<T> throws ArgumentOutOfRangeException for the same cases where arrays use IndexOutOfRangeException.

Unlike arrays, List<T> starts empty - so trying to access items of just created list lead to this exception.

var list = new List<int>();

Common case is to populate list with indexing (similar to Dictionary<int, T>) will cause exception:

list[0] = 42; // exception
list.Add(42); // correct

IDataReader and Columns
Imagine you're trying to read data from a database with this code:

using (var connection = CreateConnection()) {
    using (var command = connection.CreateCommand()) {
        command.CommandText = "SELECT MyColumn1, MyColumn2 FROM MyTable";

        using (var reader = command.ExecuteReader()) {
            while (reader.Read()) {
                ProcessData(reader.GetString(2)); // Throws!
            }
        }
    }
}

GetString() will throw IndexOutOfRangeException because you're dataset has only two columns but you're trying to get a value from 3rd one (indices are always 0-based).

Please note that this behavior is shared with most IDataReader implementations (SqlDataReader, OleDbDataReader and so on).

You can get the same exception also if you use the IDataReader overload of the indexer operator that takes a column name and pass an invalid column name.
Suppose for example that you have retrieved a column named Column1 but then you try to retrieve the value of that field with

 var data = dr["Colum1"];  // Missing the n in Column1.

This happens because the indexer operator is implemented trying to retrieve the index of a Colum1 field that doesn't exist. The GetOrdinal method will throw this exception when its internal helper code returns a -1 as the index of "Colum1".

Others
There is another (documented) case when this exception is thrown: if, in DataView, data column name being supplied to the DataViewSort property is not valid.

How to Avoid

In this example, let me assume, for simplicity, that arrays are always monodimensional and 0-based. If you want to be strict (or you're developing a library), you may need to replace 0 with GetLowerBound(0) and .Length with GetUpperBound(0) (of course if you have parameters of type System.Array, it doesn't apply for T[]). Please note that in this case, upper bound is inclusive then this code:

for (int i=0; i < array.Length; ++i) { }

Should be rewritten like this:

for (int i=array.GetLowerBound(0); i <= array.GetUpperBound(0); ++i) { }

Please note that this is not allowed (it'll throw InvalidCastException), that's why if your parameters are T[] you're safe about custom lower bound arrays:

void foo<T>(T[] array) { }

void test() {
    // This will throw InvalidCastException, cannot convert Int32[] to Int32[*]
    foo((int)Array.CreateInstance(typeof(int), new int[] { 1 }, new int[] { 1 }));
}

Validate Parameters
If index comes from a parameter you should always validate them (throwing appropriate ArgumentException or ArgumentOutOfRangeException). In the next example, wrong parameters may cause IndexOutOfRangeException, users of this function may expect this because they're passing an array but it's not always so obvious. I'd suggest to always validate parameters for public functions:

static void SetRange<T>(T[] array, int from, int length, Func<i, T> function)
{
    if (from < 0 || from>= array.Length)
        throw new ArgumentOutOfRangeException("from");

    if (length < 0)
        throw new ArgumentOutOfRangeException("length");

    if (from + length > array.Length)
        throw new ArgumentException("...");

    for (int i=from; i < from + length; ++i)
        array[i] = function(i);
}

If function is private you may simply replace if logic with Debug.Assert():

Debug.Assert(from >= 0 && from < array.Length);

Check Object State
Array index may not come directly from a parameter. It may be part of object state. In general is always a good practice to validate object state (by itself and with function parameters, if needed). You can use Debug.Assert(), throw a proper exception (more descriptive about the problem) or handle that like in this example:

class Table {
    public int SelectedIndex { get; set; }
    public Row[] Rows { get; set; }

    public Row SelectedRow {
        get {
            if (Rows == null)
                throw new InvalidOperationException("...");

            // No or wrong selection, here we just return null for
            // this case (it may be the reason we use this property
            // instead of direct access)
            if (SelectedIndex < 0 || SelectedIndex >= Rows.Length)
                return null;

            return Rows[SelectedIndex];
        }
}

Validate Return Values
In one of previous examples we directly used Array.IndexOf() return value. If we know it may fail then it's better to handle that case:

int index = myArray[Array.IndexOf(myArray, "Debug");
if (index != -1) { } else { }

How to Debug

In my opinion, most of the questions, here on SO, about this error can be simply avoided. The time you spend to write a proper question (with a small working example and a small explanation) could easily much more than the time you'll need to debug your code. First of all, read this Eric Lippert's blog post about debugging of small programs, I won't repeat his words here but it's absolutely a must read.

You have source code, you have exception message with a stack trace. Go there, pick right line number and you'll see:

array[index] = newValue;

You found your error, check how index increases. Is it right? Check how array is allocated, is coherent with how index increases? Is it right according to your specifications? If you answer yes to all these questions, then you'll find good help here on StackOverflow but please first check for that by yourself. You'll save your own time!

A good start point is to always use assertions and to validate inputs. You may even want to use code contracts. When something went wrong and you can't figure out what happens with a quick look at your code then you have to resort to an old friend: debugger. Just run your application in debug inside Visual Studio (or your favorite IDE), you'll see exactly which line throws this exception, which array is involved and which index you're trying to use. Really, 99% of the times you'll solve it by yourself in a few minutes.

If this happens in production then you'd better to add assertions in incriminated code, probably we won't see in your code what you can't see by yourself (but you can always bet).

The VB.NET side of the story

Everything that we have said in the C# answer is valid for VB.NET with the obvious syntax differences but there is an important point to consider when you deal with VB.NET arrays.

In VB.NET, arrays are declared setting the maximum valid index value for the array. It is not the count of the elements that we want to store in the array.

' declares an array with space for 5 integer 
' 4 is the maximum valid index starting from 0 to 4
Dim myArray(4) as Integer

So this loop will fill the array with 5 integers without causing any IndexOutOfRangeException

For i As Integer = 0 To 4
    myArray(i) = i
Next

The VB.NET rule

This exception means that you're trying to access a collection item by index, using an invalid index. An index is invalid when it's lower than the collection's lower bound or greater than equal to the number of elements it contains. the maximum allowed index defined in the array declaration

I believe referencing this.state inside of setState() is discouraged (State Updates May Be Asynchronous).

The docs recommend using setState() with a callback function so that prevState is passed in at runtime when the update occurs. So this is how it would look:

Using Array.prototype.filter without ES6

removeItem : function(index) {
  this.setState(function(prevState){
    return { data : prevState.data.filter(function(val, i) {
      return i !== index;
    })};
  });
}

Using Array.prototype.filter with ES6 Arrow Functions

removeItem(index) {
  this.setState((prevState) => ({
    data: prevState.data.filter((_, i) => i !== index)
  }));
}

Using immutability-helper

import update from 'immutability-helper'
...
removeItem(index) {
  this.setState((prevState) => ({
    data: update(prevState.data, {$splice: [[index, 1]]})
  }))
}

Using Spread

function removeItem(index) {
  this.setState((prevState) => ({
    data: [...prevState.data.slice(0,index), ...prevState.data.slice(index+1)]
  }))
}

Note that in each instance, regardless of the technique used, this.setState() is passed a callback, not an object reference to the old this.state;

If you want to do this via the designer you can do it by following the instructions here "Save changes is not permitted" when changing an existing column to be nullable

Go to your project's "Properties" within visual studio. Then go to signing tab.

Then make sure Sign the Click Once manifests is turned off.

Updated Instructions:

Within your Solution Explorer:

1. right click on your project
2. click on properties
3. usually on the left-hand side, select the "Signing" tab
4. check off the Sign the ClickOnce manifests
5. Make sure you save!

To grant a permission:

grant select on schema_name.sequence_name to user_or_role_name;

To check which permissions have been granted

select * from all_tab_privs where TABLE_NAME = 'sequence_name'

Yes you can have multiple expression to add multiple class in ng-class.

For example:

<div ng-class="{class1:Result.length==2,class2:Result.length==3}"> Dummy Data </div>

If you want to get stored procedures using specific column only, you can use try this query:

SELECT DISTINCT Name
FROM sys.Procedures
WHERE object_definition(OBJECT_ID) LIKE '%CreatedDate%';

If you want to get stored procedures using specific column of table, you can use below query :

SELECT DISTINCT Name 
FROM sys.procedures
WHERE OBJECT_DEFINITION(OBJECT_ID) LIKE '%tbl_name%'
AND OBJECT_DEFINITION(OBJECT_ID) LIKE '%CreatedDate%';

Write the below command from your repo terminal:

git remote set-url origin [email protected]:<username>/<repo>.git

Refer this link for more details about changing the url in the remote.

Simply we can use:-

1. @ :- for String values for one way Data binding. in one way data binding you can only pass scope value to directive

2. = :- for object value for two way data binding. in two way data binding you can change the scope value in directive as well as in html also.

3. & :- for methods and functions.

EDIT

In our Component definition for Angular version 1.5 And above
there are four different type of bindings:

1. = Two-way data binding :- if we change the value,it automatically update

2. < one way binding :- when we just want to read a parameter from a parent scope and not update it.

3. @ this is for String Parameters

4. & this is for Callbacks in case your component needs to output something to its parent scope

abs function is definitely not what you need as it is not calculating the distance. Try abs (-25+15) to see that it's not working. A distance between the numbers is 40 but the output will be 10. Because it's doing the math and then removing "minus" in front. I am using this custom function:

def distance(a, b):
    if (a < 0) and (b < 0) or (a > 0) and (b > 0):
        return abs( abs(a) - abs(b) )
    if (a < 0) and (b > 0) or (a > 0) and (b < 0):
        return abs( abs(a) + abs(b) )

print distance(-25, -15)
print distance(25, -15)
print distance(-25, 15)
print distance(25, 15)

As of pandas 0.17.0, DataFrame.sort() is deprecated, and set to be removed in a future version of pandas. The way to sort a dataframe by its values is now is DataFrame.sort_values

As such, the answer to your question would now be

df.sort_values(['b', 'c'], ascending=[True, False], inplace=True)

After adding files to the stage, you need to commit them with git commit -m "comment" after git add .. Finally, to push them to a remote repository, you need to git push <remote_repo> <local_branch>.

I'd like to add another reason that "catalina.sh" won't be able to connect to port 8005, apart from a firewall or a change in "server.xml": It takes Tomcat time to start listening on port 8005.

It's easy to reproduce this scenario If you start Tomcat and try to stop it immediately. Wait a few minutes and you'll see that the problem disappears because the port has opened.

You can use .present? which comes included with ActiveSupport.

@city = @user.city.present?
# etc ...

You could even write it like this

def show
  %w(city state bio contact twitter mail).each do |attr|
    instance_variable_set "@#{attr}", @user[attr].present?
  end
end

It's worth noting that if you want to test if something is blank, you can use .blank? (this is the opposite of .present?)

Also, don't use foo == nil. Use foo.nil? instead.

Using class members to give default values works very well just so long as you are careful only to do it with immutable values. If you try to do it with a list or a dict that would be pretty deadly. It also works where the instance attribute is a reference to a class just so long as the default value is None.

I've seen this technique used very successfully in repoze which is a framework that runs on top of Zope. The advantage here is not just that when your class is persisted to the database only the non-default attributes need to be saved, but also when you need to add a new field into the schema all the existing objects see the new field with its default value without any need to actually change the stored data.

I find it also works well in more general coding, but it's a style thing. Use whatever you are happiest with.

You can also add padding for a nice effect.

<img src="image.png" style="padding:1px;border:thin solid black;">

If you're using an MVVM library such as knockout.js (which I highly recommend) you can do it more cleanly:

<div class="alert alert-info alert-dismissible" data-bind="visible:showAlert">
   <button type="button" class="close" data-bind="click:function(){showAlert(false);}>
        <span aria-hidden="true">&times;</span>
        <span class="sr-only">Close</span>
   </button>
   Warning! Better check yourself, you're not looking too good.
</div>

http://jsfiddle.net/bce9gsav/5/

The simplest solution for a contains function, would be a function that looks like this :

var contains = function (haystack, needle) {
    return !!~haystack.indexOf(needle);
}

Ideally, you wouldn't make this a stand-alone function, though, but part of a helper library :

var helper = {};

helper.array = {
    contains : function (haystack, needle) {
        return !!~haystack.indexOf(needle);
    }, 
    ...
};

Now, if you happen to be one of those unlucky people who still needs to support IE<9 and thus can't rely on indexOf, you could use this polyfill, which I got from the MDN :

if (!Array.prototype.indexOf) {
  Array.prototype.indexOf = function(searchElement, fromIndex) {
    var k;
    if (this == null) {
      throw new TypeError('"this" is null or not defined');
    }
    var o = Object(this);
    var len = o.length >>> 0;
    if (len === 0) {
      return -1;
    }
    var n = +fromIndex || 0;

    if (Math.abs(n) === Infinity) {
      n = 0;
    }
    if (n >= len) {
      return -1;
    }
    k = Math.max(n >= 0 ? n : len - Math.abs(n), 0);
    while (k < len) {
      if (k in o && o[k] === searchElement) {
        return k;
      }
      k++;
    }
    return -1;
  };
}

In typescript with object/generic way, it could be alse implemented:

export interface INestedIterator<T> {
    getChildren(): T[];
}

export class NestedIterator {
    private static forEach<T extends INestedIterator<T>>(obj: T, fn: ((obj: T) => void)): void {      
        fn(obj);    
        if (obj.getChildren().length) {
            for (const item of obj.getChildren()) {
                NestedIterator.forEach(item, fn);            
            };
        }
    }
}

than you can implement interface INestedIterator<T>:

class SomeNestedClass implements INestedIterator<SomeNestedClass>{
    items: SomeNestedClass[];
    getChildren() {
        return this.items;
    }
}

and then just call

NestedIterator.forEach(someNesteObject, (item) => {
    console.log(item);
})

if you don't want use interfaces and strongly typed classes, just remove types

export class NestedIterator {
    private static forEach(obj: any, fn: ((obj: any) => void)): void {      
        fn(obj);    
        if (obj.items && obj.items.length) {
            for (const item of obj.items) {
                NestedIterator.forEach(item, fn);            
            };
        }
    }
}

• Ctrl + A and then Ctrl+D. Doing this will detach you from the screen session which you can later resume by doing screen -r.

• You can also do: Ctrl+A then type :. This will put you in screen command mode. Type the command detach to be detached from the running screen session.

<a href="download.php?file=path/<?=$row['file_name']?>">Download</a>

download.php:

<?php

$file = $_GET['file'];

download_file($file);

function download_file( $fullPath ){

  // Must be fresh start
  if( headers_sent() )
    die('Headers Sent');

  // Required for some browsers
  if(ini_get('zlib.output_compression'))
    ini_set('zlib.output_compression', 'Off');

  // File Exists?
  if( file_exists($fullPath) ){

    // Parse Info / Get Extension
    $fsize = filesize($fullPath);
    $path_parts = pathinfo($fullPath);
    $ext = strtolower($path_parts["extension"]);

    // Determine Content Type
    switch ($ext) {
      case "pdf": $ctype="application/pdf"; break;
      case "exe": $ctype="application/octet-stream"; break;
      case "zip": $ctype="application/zip"; break;
      case "doc": $ctype="application/msword"; break;
      case "xls": $ctype="application/vnd.ms-excel"; break;
      case "ppt": $ctype="application/vnd.ms-powerpoint"; break;
      case "gif": $ctype="image/gif"; break;
      case "png": $ctype="image/png"; break;
      case "jpeg":
      case "jpg": $ctype="image/jpg"; break;
      default: $ctype="application/force-download";
    }

    header("Pragma: public"); // required
    header("Expires: 0");
    header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
    header("Cache-Control: private",false); // required for certain browsers
    header("Content-Type: $ctype");
    header("Content-Disposition: attachment; filename=\"".basename($fullPath)."\";" );
    header("Content-Transfer-Encoding: binary");
    header("Content-Length: ".$fsize);
    ob_clean();
    flush();
    readfile( $fullPath );

  } else
    die('File Not Found');

}
?>

Here is how I would do it using vanilla JS

<form id="myform" method="POST" action="xxx">
    <!-- your stuff here -->
    <a href="javascript:void()" onclick="document.getElementById('myform').submit();>Ponies await!</a>
</form>

You can play with the return falses and href="#" vs void and whatever you need to but this method worked for me in Chrome 18, IE 9 and Firefox 14 and the rest depends on your javascript mostly.

MSSQL requires that variables within procedures be DECLAREd and folks use the @Variable syntax (DECLARE @TEXT VARCHAR(25) = 'text'). Also, MS allows for declares within any block in the procedure, unlike mySQL which requires all the DECLAREs at the top.

While good on the command line, I feel using the "set = @variable" within stored procedures in mySQL is risky. There is no scope and variables live across scope boundaries. This is similar to variables in JavaScript being declared without the "var" prefix, which are then the global namespace and create unexpected collisions and overwrites.

I am hoping that the good folks at mySQL will allow DECLARE @Variable at various block levels within a stored procedure. Notice the @ (at sign). The @ sign prefix helps to separate variable names from table column names - as they are often the same. Of course, one can always add an "v" or "l_" prefix, but the @ sign is a handy and succinct way to have the variable name match the column you might be extracting the data from without clobbering it.

MySQL is new to stored procedures and they have done a good job for their first version. It will be a pleaure to see where they take it form here and to watch the server side aspects of the language mature.

You cannot change a table while the INSERT trigger is firing. The INSERT might do some locking which could result in a deadlock. Also, updating the table from a trigger would then cause the same trigger to fire again in an infinite recursive loop. Both of these reasons are why MySQL prevents you from doing this.

However, depending on what you're trying to achieve, you can access the new values by using NEW.fieldname or even the old values--if doing an UPDATE--with OLD.

If you had a row named full_brand_name and you wanted to use the first two letters as a short name in the field small_name you could use:

CREATE TRIGGER `capital` BEFORE INSERT ON `brandnames`
FOR EACH ROW BEGIN
  SET NEW.short_name = CONCAT(UCASE(LEFT(NEW.full_name,1)) , LCASE(SUBSTRING(NEW.full_name,2)))
END

For newbies like me:

From the menu Nav bar at the top: Select File -> Preferences -> Settings. In the search text box, type in Quote In the filtered list that appears below, look for the gear icon and next to it - "Prettier". Click on check box to enable "Prettier: Single Quote"

If you are running the command from a POSIX-compliant shell, like bash, you can set the environment variable like this:

PYTHONPATH="/path/to" python somescript.py somecommand

If it's all on one line, the PYTHONPATH environment value applies only to that one command.

$ echo $PYTHONPATH

$ python -c 'import sys;print("/tmp/pydir" in sys.path)'
False
$ PYTHONPATH=/tmp/pydir python -c 'import sys;print("/tmp/pydir" in sys.path)'
True
$ echo $PYTHONPATH

A little more elegant way of doing the same adding on to the above comment ..

<asp:GridView ID="grdParent" runat="server" BackColor="White" BorderColor="#DEDFDE"
                           AutoGenerateColumns="false"
                            OnRowDeleting="deleteRow"
                         GridLines="Vertical">
      <asp:BoundField DataField="IdTemplate" HeaderText="IdTemplate" />
      <asp:BoundField DataField="EntityId" HeaderText="EntityId"  />
    <asp:TemplateField ShowHeader="false">
        <ItemTemplate>
           <asp:LinkButton ID="lnkCustomize" Text="Delete"  CommandName="Delete"  CommandArgument='<%#Eval("IdTemplate") + ";" +Eval("EntityId")%>'  runat="server"> 
           </asp:LinkButton>   
        </ItemTemplate>   
    </asp:TemplateField>
     </asp:GridView>

And on the server side:

protected void deleteRow(object sender, GridViewDeleteEventArgs e)
{
    string IdTemplate= e.Values["IdTemplate"].ToString();
    string EntityId = e.Values["EntityId"].ToString();

   // Do stuff..
}

You should use multiple commands in one line. for example:

os.system(". Projects/virenv/bin/activate && python Projects/virenv/django-project/manage.py runserver")

when you activate your virtual environment in one line, I think it forgets for other command lines and you can prevent this by using multiple commands in one line. It worked for me :)

I tried the accepted solution and it didn't work for me. I use the browser debugger and found out the actual height that should be used is the clientHeight BUT you have to put this into the updated() hook for the whole solution to work.

data(){
return {
  conversation: [
    {
    }
  ]
 },
mounted(){
 EventBus.$on('msg-ctr--push-msg-in-conversation', textMsg => {
  this.conversation.push(textMsg)
  // Didn't work doing scroll here
 })
},
updated(){              <=== PUT IT HERE !!
  var elem = this.$el
  elem.scrollTop = elem.clientHeight;
},

Running 'py' command will tell you what version you have running. If you currently running 3.x and you need to switch to 2.x, you will need to use switch '-2'

py -2

If you need to switch from python 2.x to python 3.x you will have to use '-3' switch

py -3

If you would like to have Python 3.x as a default version, then you will need to create environment variable 'PY_PYTHON' and set it's value to 3.

Even if you remove the shared folder via net use * /del, on the server side there is still a connection up there.

In order to get around this problem which Microsoft created by design you should map the drive in a way to let windows think it's another share on another server. The simplest way to do that is to use DNS aliases or ip addresses. In your case, if your first mapping uses the ip address like \\IP\Share with your current credential, you should use something like \\ServerName\Share password /user:Domain\Username this should create a new share with the new credentials.

Microsoft call this behavior by design .. i call it just stupid design.

In addition, it's convenient to define variables referring to objects. For instance,

Sub CreateTable()
    Dim lo as ListObject
    Set lo = ActiveSheet.ListObjects.Add(xlSrcRange, Range("$B$1:$D$16"), , xlYes)
    lo.Name = "Table1"
    lo.TableStyle = "TableStyleLight2"
    ...
End Sub

You will probably find it advantageous at once.

This workaround helped us so much at my job (Tech Support), we made a simple batch file we could run from anywhere (We didnt have the permissions to install it). This workaround will set the variable and then run OpenSSL for you. It also opens up the bin folder for you (cause this is where any files you create or modify will be saved). Also, this is only for Windows.

How to Set Up:

1. Download the OpenSSL binaries here. (Note that this is confirmed to work with version 0.9.8h.)

2. Copy this code to a file named StartOpenSSL.bat. Save this to a location of your choice. It can be run from anywhere.

   @echo off
   title OpenSSL
   
   cd\openssl\bin
   
   if exist "C:\openssl\share\openssl.cnf" (
   
   set OPENSSL_CONF=c:/openssl/share/openssl.cnf
   start explorer.exe c:\openssl\bin
   
   echo Welcome to OpenSSL
   
   openssl
   
   ) else (
   
   echo Error: openssl.cnf was not found
   echo File openssl.cnf needs to be present in c:\openssl\share
   pause
   
   )
   
   exit
   

3. Once you have downloaded the OpenSSL binaries, extract them to your C drive in a folder titled OpenSSL. (The path needs to be C:\OpenSSL). Do not move any of the folders contents around, just extract them to the folder.
4. You are ready to use OpenSSL. This is a great workaround for Windows users who dont have the privileges to install it as it requires no permissions. Just run the bat file from earlier by double clicking it.

In Maven you can configure the surefire plugin

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>2.9</version>
    <configuration>
        <argLine>-Xmx256M</argLine>
    </configuration>
</plugin>

If you use Maven for builds then this configuration will be carried in the source tree and applied when tests are carried out. See the Maven Surefire Plugin documentation.

All the answers are beneficial to gather the information to write efficient code. However, I have written a small Python script to optimize for various cases. It will be the best case if the provided array is sorted. If one searches the index of the nearest point of a specified value, then bisect module is the most time efficient. When one search the indices correspond to an array, the numpy searchsorted is most efficient.

import numpy as np
import bisect
xarr = np.random.rand(int(1e7))

srt_ind = xarr.argsort()
xar = xarr.copy()[srt_ind]
xlist = xar.tolist()
bisect.bisect_left(xlist, 0.3)

In [63]: %time bisect.bisect_left(xlist, 0.3) CPU times: user 0 ns, sys: 0 ns, total: 0 ns Wall time: 22.2 µs

np.searchsorted(xar, 0.3, side="left")

In [64]: %time np.searchsorted(xar, 0.3, side="left") CPU times: user 0 ns, sys: 0 ns, total: 0 ns Wall time: 98.9 µs

randpts = np.random.rand(1000)
np.searchsorted(xar, randpts, side="left")

%time np.searchsorted(xar, randpts, side="left") CPU times: user 4 ms, sys: 0 ns, total: 4 ms Wall time: 1.2 ms

If we follow the multiplicative rule, then numpy should take ~100 ms which implies ~83X faster.

An idempotent operation is an operation, action, or request that can be applied multiple times without changing the result, i.e. the state of the system, beyond the initial application.

EXAMPLES (WEB APP CONTEXT):

IDEMPOTENT: Making multiple identical requests has the same effect as making a single request. A message in an email messaging system is opened and marked as "opened" in the database. One can open the message many times but this repeated action will only ever result in that message being in the "opened" state. This is an idempotent operation. The first time one PUTs an update to a resource using information that does not match the resource (the state of the system), the state of the system will change as the resource is updated. If one PUTs the same update to a resource repeatedly then the information in the update will match the information already in the system upon every PUT, and no change to the state of the system will occur. Repeated PUTs with the same information are idempotent: the first PUT may change the state of the system, subsequent PUTs should not.

NON-IDEMPOTENT: If an operation always causes a change in state, like POSTing the same message to a user over and over, resulting in a new message sent and stored in the database every time, we say that the operation is NON-IDEMPOTENT.

NULLIPOTENT: If an operation has no side effects, like purely displaying information on a web page without any change in a database (in other words you are only reading the database), we say the operation is NULLIPOTENT. All GETs should be nullipotent.

When talking about the state of the system we are obviously ignoring hopefully harmless and inevitable effects like logging and diagnostics.

SELECT CASE  
          WHEN transaction_isolation_level = 1 
             THEN 'READ UNCOMMITTED' 
          WHEN transaction_isolation_level = 2 
               AND is_read_committed_snapshot_on = 1 
             THEN 'READ COMMITTED SNAPSHOT' 
          WHEN transaction_isolation_level = 2 
               AND is_read_committed_snapshot_on = 0 THEN 'READ COMMITTED' 
          WHEN transaction_isolation_level = 3 
             THEN 'REPEATABLE READ' 
          WHEN transaction_isolation_level = 4 
             THEN 'SERIALIZABLE' 
          WHEN transaction_isolation_level = 5 
             THEN 'SNAPSHOT' 
          ELSE NULL
       END AS TRANSACTION_ISOLATION_LEVEL 
FROM   sys.dm_exec_sessions AS s
       CROSS JOIN sys.databases AS d
WHERE  session_id = @@SPID
  AND  d.database_id = DB_ID();

SWIFT 3

tableView.rowHeight = UITableViewAutomaticDimension
tableView.estimatedRowHeight = 160

AND!!! In storyBoard: You HAVE TO set TOP & BOTTOM constraints for your Label. Nothing else.

Answer using TypeScript spread operator (...)

// Your key
const key = 'two';

// Your array
const arr = [
    'one',
    'two',
    'three'
];

// Get either the index or -1
const index = arr.indexOf(key); // returns 0


// Despite a real index, or -1, use spread operator and Array.prototype.slice()    
const newArray = (index > -1) ? [
    ...arr.slice(0, index),
    ...arr.slice(index + 1)
] : arr;

301 is that the requested resource has been assigned a new permanent URI and any future references to this resource should be done using one of the returned URIs.

302 is that the requested resource resides temporarily under a different URI.

Since the redirection may be altered on occasion, the client should continue to use the Request-URI for future requests.

This response is only cachable if indicated by a Cache-Control or Expires header field.

Here is how you do it: Simple way

// Initializing a new alert dialog
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setMessage(R.string.message);
builder.setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
        doAction();
    }
});
builder.setNegativeButton(R.string.cancel, null);

// Create the alert dialog and change Buttons colour
AlertDialog dialog = builder.create();
dialog.setOnShowListener(new DialogInterface.OnShowListener() {
    @Override
    public void onShow(DialogInterface arg0) {
        dialog.getButton(AlertDialog.BUTTON_POSITIVE).setTextColor(getResources().getColor(R.color.red));
        dialog.getButton(AlertDialog.BUTTON_NEGATIVE).setTextColor(getResources().getColor(R.color.blue));
        //dialog.getButton(AlertDialog.BUTTON_NEUTRAL).setTextColor(getResources().getColor(R.color.black));
    }
});
dialog.show();

$.ajax("youurl", function(data){
    if (data.success == true)
    setTimeout(function(){window.location = window.location}, 5000); 
    })
)

if you write while(true). its means that loop will not stop in any situation for stop this loop you have to use break statement between while block.

package com.java.demo;

/**
 * @author Ankit Sood Apr 20, 2017
 */
public class Demo {

    /**
     * The main method.
     *
     * @param args
     *            the arguments
     */
    public static void main(String[] args) {
        /* Initialize while loop */
        while (true) {
            /*
            * You have to declare some condition to stop while loop 

            * In which situation or condition you want to terminate while loop.
            * conditions like: if(condition){break}, if(var==10){break} etc... 
            */

            /* break keyword is for stop while loop */

            break;
        }
    }
}

I had a similar problem and it was the version of bootstrap.js included in my visual studio project. I linked to here and it worked great

 <script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>

Dependencies

compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.android.support:design:25.3.1'
compile 'com.android.support:multidex:1.0.1'
compile 'com.android.support:cardview-v7:25.3.1'
compile 'com.android.support:support-v4:25.3.1'
compile 'com.lguipeng.bubbleview:library:1.0.0'
compile 'com.larswerkman:HoloColorPicker:1.5'
compile 'com.mcxiaoke.volley:library-aar:1.0.0'

One Class For Click Item

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;

public class RecyclerItemClickListener implements RecyclerView.OnItemTouchListener {
    private OnItemClickListener mListener;

    public interface OnItemClickListener {
        public void onItemClick(View view, int position);
    }

    GestureDetector mGestureDetector;

    public RecyclerItemClickListener(Context context, OnItemClickListener listener) {
        mListener = listener;
        mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
            @Override
            public boolean onSingleTapUp(MotionEvent e) {
                return true;
            }
        });
    }

    @Override
    public boolean onInterceptTouchEvent(RecyclerView view, MotionEvent e) {
        View childView = view.findChildViewUnder(e.getX(), e.getY());
        if (childView != null && mListener != null && mGestureDetector.onTouchEvent(e)) {
            mListener.onItemClick(childView, view.getChildPosition(childView));
            return true;
        }
        return false;
    }

    @Override
    public void onTouchEvent(RecyclerView view, MotionEvent motionEvent) { }

    @Override
    public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {

    }


}

Second Class RecyclerView

import android.annotation.SuppressLint;
import android.app.ProgressDialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.Uri;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.content.LocalBroadcastManager;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;

import com.android.volley.DefaultRetryPolicy;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;

public class SLByTopics extends Fragment {


    public static ArrayList<MByTopics> byTopicsMainArrayList=new ArrayList<>();


    TabRefreshReceiver tabRefreshReceiver;
    RecyclerView recyclerView;
    SAdpByTopics sAdpByTopics;
    public ArrayList<MByTopics> mByTopicsArrayList=new ArrayList<>();
    ProgressDialog progressDialog;

    public SLByTopics(){
    }

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.sl_fragment_by_topics, container, false);

        progressDialog = new ProgressDialog(getActivity());
        if (IsOnline.isNetworkAvailable(getActivity())) {
            getCategoryTree();
        } else{
            IsOnline.showNoInterNetMessage(getActivity());
        }
        tabRefreshReceiver = new TabRefreshReceiver();
       LocalBroadcastManager.getInstance(getContext()).registerReceiver(tabRefreshReceiver, new IntentFilter("BY_TOPICS"));

        setUpView(view);
        return view;
    }

    private void setUpView(View view) {

        recyclerView=(RecyclerView)view.findViewById(R.id.by_topics_list_recyclerView);
        LinearLayoutManager linearLayoutManager=new LinearLayoutManager(getActivity());
        linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
        recyclerView.setLayoutManager(linearLayoutManager);
    }

    @Override
    public void onResume() {
        super.onResume();

        recyclerView.addOnItemTouchListener(new RecyclerItemClickListener(getActivity(), new RecyclerItemClickListener.OnItemClickListener() {
            @Override
            public void onItemClick(View view, final int position) {

                if (mByTopicsArrayList.get(position).getChild().size()>0){
                    Intent intent = new Intent(getActivity(), SByTopicCategory.class);
                    intent.putExtra("selectedCategoryName",mByTopicsArrayList.get(position).getCatname());
                    intent.putExtra("jsonData",mByTopicsArrayList.get(position).getMainTopicJson());
                    startActivity(intent);
                    getActivity().overridePendingTransition(R.anim.activity_in, R.anim.activity_out);
                }else {
                    Intent intent = new Intent(getActivity(), SByCategoryQuestionList.class);
                    intent.putExtra("selectedSubCategoryName",mByTopicsArrayList.get(position).getCatname());
                    intent.putExtra("catID",mByTopicsArrayList.get(position).getId());
                    startActivity(intent);
                    getActivity().overridePendingTransition(R.anim.activity_in, R.anim.activity_out);
                }
            }
        }));

    }

    private class TabRefreshReceiver extends BroadcastReceiver {
        @Override
        public void onReceive(Context context, Intent intent) {
            try {
                FragmentTransaction ft = getFragmentManager().beginTransaction();
                ft.detach(SLByTopics.this).attach(SLByTopics.this).commit();
                LocalBroadcastManager.getInstance(getContext()).unregisterReceiver(tabRefreshReceiver);
            } catch (Exception e) {
                e.printStackTrace();
            }

        }
    }

    private void getCategoryTree() {
        progressDialog.setMessage("Please Wait...");
        progressDialog.setCancelable(false);
        progressDialog.show();

        StringRequest stringRequest = new StringRequest(Request.Method.POST, Const.HOSTNAME + Const.STUDENT_GET_CATEGORY_TREE,
                new Response.Listener<String>() {
                    @SuppressLint("LongLogTag")
                    @Override
                    public void onResponse(String response) {
                        try {
                            JSONObject object = new JSONObject(response);
                            String status = object.getString("status");
                            int i = Integer.parseInt(status);

                            switch (i) {

                                case 0:
                                    progressDialog.dismiss();
//                                    Toast.makeText(getActivity(), "getCategorySuccess", Toast.LENGTH_SHORT).show();
                                    Log.e("getCategoryTree Response", "getCategoryTree Response : " + response);

                                    try {    
                                        byTopicsMainArrayList.clear();
                                        JSONArray info = object.getJSONArray("info");
                                        if (info.length() > 0) {
                                            for (i = 0; i < info.length(); i++) {
                                                JSONObject data = info.getJSONObject(i);
                                                MByTopics mByTopics = new MByTopics();
                                                mByTopics.setId(data.getString("id"));
                                                mByTopics.setCatname(data.getString("catname"));
                                                mByTopics.setMainTopicJson(data.toString());

                                                JSONArray topicChildren = data.getJSONArray("children");
                                                ArrayList<SMByTopicCategory> byChildrenArrayList = new ArrayList<>();

                                                for (int j = 0; j < topicChildren.length(); j++) {
                                                    JSONObject topicChildrenData = topicChildren.getJSONObject(j);
                                                    SMByTopicCategory smByTopicCategory = new SMByTopicCategory();
                                                    smByTopicCategory.setId(topicChildrenData.getString("id"));
                                                    smByTopicCategory.setCatname(topicChildrenData.getString("catname"));
                                                    smByTopicCategory.setChildTopicJson(topicChildrenData.toString());

                                                    JSONArray topicChildrenQuestion = topicChildrenData.getJSONArray("children");
                                                    ArrayList<SMByTopicSubCategory> byChildrenSubArrayList = new ArrayList<>();

                                                    for (int k = 0; k < topicChildrenQuestion.length(); k++) {
                                                        JSONObject topicChildrenSubData = topicChildrenQuestion.getJSONObject(k);
                                                        SMByTopicSubCategory smByTopicSubCategory = new SMByTopicSubCategory();
                                                        smByTopicSubCategory.setId(topicChildrenSubData.getString("id"));
                                                        smByTopicSubCategory.setCatname(topicChildrenSubData.getString("catname"));
                                                        smByTopicSubCategory.setChildSubTopicJson(topicChildrenSubData.toString());

                                                        byChildrenSubArrayList.add(smByTopicSubCategory);
                                                    }

                                                    smByTopicCategory.setQuestions(byChildrenSubArrayList);

                                                    byChildrenArrayList.add(smByTopicCategory);
                                                }
                                                mByTopics.setChild(byChildrenArrayList);
                                                byTopicsMainArrayList.add(mByTopics);
                                            }


                                            mByTopicsArrayList.clear();
                                            mByTopicsArrayList=byTopicsMainArrayList;
                                            sAdpByTopics=new SAdpByTopics(mByTopicsArrayList,getActivity());
                                            recyclerView.setAdapter(sAdpByTopics);
                                            sAdpByTopics.notifyDataSetChanged();

                                        }

                                    }catch (Exception e){
                                        e.printStackTrace();
                                    }
                                    break;

                                default:
                                    progressDialog.dismiss();
//                                    Toast.makeText(getActivity(), "getCategoryError : " + response, Toast.LENGTH_SHORT).show();
                                    Log.e("getCategoryTree Not Response", "getCategoryTree Uploading Not Response : " + response);
                            }

                        } catch (JSONException e) {
                            e.printStackTrace();
                        }
                    }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        progressDialog.dismiss();
                        Log.e("getCategoryTree Error :","getCategoryTree Error :"+error.getMessage());
//                        Toast.makeText(getActivity(), error.getMessage(), Toast.LENGTH_LONG).show();
                    }
                }){

        };/* {
            @Override
            protected Map<String, String> getParams() throws AuthFailureError {

                Map<String, String> map = new HashMap<String, String>();
//                map.put("uid", String.valueOf(ConfigManager.getUserId()));
                return map;
            }
        };*/

        stringRequest.setRetryPolicy(new DefaultRetryPolicy(
                0,
                DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
                DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));

        RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
        requestQueue.add(stringRequest);
    }
}

Adapter Class For Recycler Item

import android.app.Activity;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import java.util.ArrayList;

public class SAdpByTopics extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
        ArrayList<MByTopics> topicsArrayList=new ArrayList<>();
        Activity activity;

     public SAdpByTopics(ArrayList<MByTopics> topicsArrayList,Activity activity){
        this.topicsArrayList=topicsArrayList;
        this.activity=activity;
     }

     @Override
     public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View itemeView= LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item_by_topic_list,parent,false);
        RecyclerView.ViewHolder holder=new Holder(itemeView);
        holder.setIsRecyclable(false);
        return holder;
     }

     @Override
     public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
         final Holder classHolder = (Holder) holder;
         try{
             classHolder.txt_topic_name.setText(topicsArrayList.get(position).getCatname());
         }catch (Exception e){
             e.printStackTrace();
         }
     }

     @Override
     public int getItemCount() {
        return topicsArrayList.size();
     }


class Holder extends RecyclerView.ViewHolder implements View.OnClickListener {
    TextView txt_topic_name;

    public Holder(View itemView) {
        super(itemView);
        txt_topic_name = (TextView) itemView.findViewById(R.id.txt_topic_name);
    }

    @Override
    public void onClick(View v) {

    }
}
}

Module Class

public class MByTopics {

    String id;
    String topicName;
    String catname;
    String MainTopicJson;
    ArrayList<SMByTopicCategory> child;
    ArrayList<SMByTopicSubCategory> questions;

    public void setId(String id){
        this.id=id;
    }
    public String getId(){
        return  id;
    }

    public void setCatname(String catname) {
        this.catname = catname;
    }

    public String getCatname() {
        return catname;
    }

    public void setTopicName(String topicName) {
        this.topicName = topicName;
    }
    public String getTopicName() {
        return topicName;
    }

    public void setChild(ArrayList<SMByTopicCategory> child) {
        this.child = child;
    }

    public String getMainTopicJson() {
        return MainTopicJson;
    }

    public void setMainTopicJson(String mainTopicJson) {
        MainTopicJson = mainTopicJson;
    }

    public ArrayList<SMByTopicCategory> getChild() {
        return child;
    }

    public void setQuestions(ArrayList<SMByTopicSubCategory> questions) {
        this.questions = questions;
    }

    public ArrayList<SMByTopicSubCategory> getQuestions() {
        return questions;
    }

    public ArrayList<MByTopics> getByTopicList() {
        ArrayList<MByTopics> mByTopicsArrayList = new ArrayList<>();

        for (int i=0;i<11;i++){
            MByTopics mQuestionBankCategory=new MByTopics();

            if (i==1 || i== 5|| i==9){
                mQuestionBankCategory.setTopicName("Microeconomics");
            }else  if (i==2 || i== 10|| i==6) {
                mQuestionBankCategory.setTopicName("Macroeconomics");
            }else {
                mQuestionBankCategory.setTopicName("Current Isssues");
            }

            mByTopicsArrayList.add(mQuestionBankCategory);
        }

        return mByTopicsArrayList;
    }

}

Another option would be to just use perl with globstar.

Enabling shopt -s globstar in your .bashrc (or wherever) allows the ** glob pattern to match all sub-directories and files recursively.

Thus using perl -pXe 's/SEARCH/REPLACE/g' -i ** will recursively replace SEARCH with REPLACE.

The -X flag tells perl to "disable all warnings" - which means that it won't complain about directories.

The globstar also allows you to do things like sed -i 's/SEARCH/REPLACE/g' **/*.ext if you wanted to replace SEARCH with REPLACE in all child files with the extension .ext.

I was having the same issue and this works excellently.

Private Sub DataGridView17_CellFormatting(sender As Object, e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles DataGridView17.CellFormatting  
  'Display complete contents in tooltip even though column display cuts off part of it.   
  DataGridView17.Rows(e.RowIndex).Cells(e.ColumnIndex).ToolTipText = DataGridView17.Rows(e.RowIndex).Cells(e.ColumnIndex).Value 
End Sub

I had a similar error with the following code:-

foreach($myvar as $key => $value){
    $query = "SELECT stuff
            FROM table
            WHERE col1 = '$criteria1'
            AND col2 = '$criteria2'";

    $result = mysql_query($query) or die('Could not execute query - '.mysql_error(). __FILE__. __LINE__. $query);               
    $point_values = mysql_fetch_assoc($result);
    $top_five_actions[$key] += $point_values; //<--- Problem Line       
}

It turned out that my $point_values variable was occasionally returning false which caused the problem so I fixed it by wrapping it in mysql_num_rows check:-

if(mysql_num_rows($result) > 0) {
        $point_values = mysql_fetch_assoc($result);
        $top_five_actions[$key] += $point_values;
}

Not sure if this helps though?

Cheers

For making a CORS request one must add headers to the request along with the same he needs to check of mode_header is enabled in Apache.

For enabling headers in Ubuntu:

sudo a2enmod headers

For php server to accept request from different origin use:

Header set Access-Control-Allow-Origin *
Header set Access-Control-Allow-Methods "GET, POST, PUT, DELETE"
Header always set Access-Control-Allow-Headers "x-requested-with, Content-Type, origin, authorization, accept, client-security-token"

Since pandas 1.0 it became much more straightforward. This will read column 'ID' as dtype 'string':

pd.read_csv('sample.csv',dtype={'ID':'string'})

As we can see in this Getting started guide, 'string' dtype has been introduced (before strings were treated as dtype 'object').

-- If you are using a variable for the database name. 
-- Try something like this. 

DECLARE @DBName varchar(50)
Set @DBName = 'Database1'; /*  could be passed in by a parameter. */

IF( @DBName = 'Database1')
Begin
    USE [Database1];
SELECT  FROM Table1;
End

IF( @DBName = 'Database2')
Begin
USE [Database2];
SELECT  FROM Table2;
End

IF( @DBName is null)
Begin
USE [Database1];
End

You can compile your code as Objective-C++ - the simplest way is to rename your .cpp as .mm. It will then compile properly if you include EAGLView.h (you were getting so many errors because the C++ compiler didn't understand any of the Objective-C specific keywords), and you can (for the most part) mix Objective-C and C++ however you like.

This is an example OPML parser working with FeedDemon opml files:

Sub debugPrintOPML()

' http://msdn.microsoft.com/en-us/library/ms763720(v=VS.85).aspx
' http://msdn.microsoft.com/en-us/library/system.xml.xmlnode.selectnodes.aspx
' http://msdn.microsoft.com/en-us/library/ms256086(v=VS.85).aspx ' expressions
' References: Microsoft XML

Dim xmldoc As New DOMDocument60
Dim oNodeList As IXMLDOMSelection
Dim oNodeList2 As IXMLDOMSelection
Dim curNode As IXMLDOMNode
Dim n As Long, n2 As Long, x As Long

Dim strXPathQuery As String
Dim attrLength As Byte
Dim FilePath As String

FilePath = "rss.opml"

xmldoc.Load CurrentProject.Path & "\" & FilePath

strXPathQuery = "opml/body/outline"
Set oNodeList = xmldoc.selectNodes(strXPathQuery)

For n = 0 To (oNodeList.length - 1)
    Set curNode = oNodeList.Item(n)
    attrLength = curNode.Attributes.length
    If attrLength > 1 Then ' or 2 or 3
        Call processNode(curNode)
    Else
        Call processNode(curNode)
        strXPathQuery = "opml/body/outline[position() = " & n + 1 & "]/outline"
        Set oNodeList2 = xmldoc.selectNodes(strXPathQuery)
        For n2 = 0 To (oNodeList2.length - 1)
            Set curNode = oNodeList2.Item(n2)
            Call processNode(curNode)
        Next
    End If
        Debug.Print "----------------------"
Next

Set xmldoc = Nothing

End Sub

Sub processNode(curNode As IXMLDOMNode)

Dim sAttrName As String
Dim sAttrValue As String
Dim attrLength As Byte
Dim x As Long

attrLength = curNode.Attributes.length

For x = 0 To (attrLength - 1)
    sAttrName = curNode.Attributes.Item(x).nodeName
    sAttrValue = curNode.Attributes.Item(x).nodeValue
    Debug.Print sAttrName & " = " & sAttrValue
Next
    Debug.Print "-----------"

End Sub

This one takes multilevel trees of folders (Awasu, NewzCrawler):

...
Call xmldocOpen4
Call debugPrintOPML4(Null)
...

Dim sText4 As String

Sub debugPrintOPML4(strXPathQuery As Variant)

Dim xmldoc4 As New DOMDocument60
'Dim xmldoc4 As New MSXML2.DOMDocument60 ' ?
Dim oNodeList As IXMLDOMSelection
Dim curNode As IXMLDOMNode
Dim n4 As Long

If IsNull(strXPathQuery) Then strXPathQuery = "opml/body/outline"

' http://msdn.microsoft.com/en-us/library/ms754585(v=VS.85).aspx
xmldoc4.async = False
xmldoc4.loadXML sText4
If (xmldoc4.parseError.errorCode <> 0) Then
   Dim myErr
   Set myErr = xmldoc4.parseError
   MsgBox ("You have error " & myErr.reason)
Else
'   MsgBox xmldoc4.xml
End If

Set oNodeList = xmldoc4.selectNodes(strXPathQuery)

For n4 = 0 To (oNodeList.length - 1)
    Set curNode = oNodeList.Item(n4)
    Call processNode4(strXPathQuery, curNode, n4)
Next

Set xmldoc4 = Nothing

End Sub

Sub processNode4(strXPathQuery As Variant, curNode As IXMLDOMNode, n4 As Long)

Dim sAttrName As String
Dim sAttrValue As String
Dim x As Long

For x = 0 To (curNode.Attributes.length - 1)
    sAttrName = curNode.Attributes.Item(x).nodeName
    sAttrValue = curNode.Attributes.Item(x).nodeValue
    'If sAttrName = "text"
    Debug.Print strXPathQuery & " :: " & sAttrName & " = " & sAttrValue
    'End If
Next
    Debug.Print ""

If curNode.childNodes.length > 0 Then
    Call debugPrintOPML4(strXPathQuery & "[position() = " & n4 + 1 & "]/" & curNode.nodeName)
End If

End Sub

Sub xmldocOpen4()

Dim oFSO As New FileSystemObject ' Microsoft Scripting Runtime Reference
Dim oFS
Dim FilePath As String

FilePath = "rss_awasu.opml"
Set oFS = oFSO.OpenTextFile(CurrentProject.Path & "\" & FilePath)
sText4 = oFS.ReadAll
oFS.Close

End Sub

or better:

Sub xmldocOpen4()

Dim FilePath As String

FilePath = "rss.opml"

' function ConvertUTF8File(sUTF8File):
' http://www.vbmonster.com/Uwe/Forum.aspx/vb/24947/How-to-read-UTF-8-chars-using-VBA
' loading and conversion from Utf-8 to UTF
sText8 = ConvertUTF8File(CurrentProject.Path & "\" & FilePath)

End Sub

but I don't understand, why xmldoc4 should be loaded each time.

I used this line to listen for input events from javascript.
It is useful because it listens for text change and text pasted events.

myElement.addEventListener('input', e => { myEvent() });

An elegant example without the need for a positioned wrapper or duplicative content in the markup:

:root {_x000D_
  background: #f2f2f2;_x000D_
}_x000D_
h1 {_x000D_
  background-color: #565656;_x000D_
  font: bold 48px 'Futura';_x000D_
  color: transparent;_x000D_
  text-shadow: 0px 2px 3px rgba(255, 255, 255, 0.8);_x000D_
  -webkit-background-clip: text;_x000D_
  -moz-background-clip: text;_x000D_
  background-clip: text;_x000D_
}

<center>_x000D_
  <h1>Text With Inner Shadow</h1>_x000D_
</center>

Looks good on dark backgrounds as well:

:root {_x000D_
  --gunmetal-gray: #2a3439;_x000D_
  background: var(--gunmetal-gray);_x000D_
}_x000D_
_x000D_
h1[itemprop="headline"] {_x000D_
  font-family: 'Futura';_x000D_
  font-size: 48px;_x000D_
  padding-bottom: 0.35rem;_x000D_
  font-variant-caps: all-small-caps;_x000D_
  background-color: var(--gunmetal-gray);_x000D_
  color: transparent;_x000D_
  text-shadow: 0px 2px 3px rgba(255, 255, 255, 0.1);_x000D_
  -webkit-background-clip: text;_x000D_
  -moz-background-clip: text;_x000D_
  background-clip: text;_x000D_
  filter: brightness(3);_x000D_
}

<center>_x000D_
  <h1 itemprop="headline">Text With Inner Shadow</h1>_x000D_
</center>

AND ME LINK AND ME2 LINK

As mentioned above, the following link gives you the specific country code to allow Java to localize the number. Every country has its own style.

In the link above you will find the country code which should be placed in here:

...(new Locale(<COUNTRY CODE HERE>));

Switzerland for example formats the numbers as follows:

1000.00 --> 1'000.00

country code

To achieve this, following codes works for me:

NumberFormat nf = NumberFormat.getNumberInstance(new Locale("de","CH"));
nf.setMaximumFractionDigits(2);
DecimalFormat df = (DecimalFormat)nf;
System.out.println(df.format(1000.00));

Result is as expected:

1'000.00

I personally like using setdefault()

my_dict = {}

my_dict.setdefault(some_key, 0)
my_dict[some_key] += 1

String json = new JsonBuilder(new GsonAdapter())
  .object("key1", "value1")
  .object("key2", "value2")
  .object("key3")
    .object("innerKey1", "value3")
    .build().toString();

If you think the above solution is elegant, then please try out my JsonBuilder lib. It was created to allow one way of building json structures for many types of Json libraries. Current implementations include Gson, Jackson and MongoDB. For ie. Jackson just swap:

String json = new JsonBuilder(new JacksonAdapter()).

I'll happily add others on request, it`s also quite easy to implement one by oneself.

I came across this error while making a segue from a table view controller to a view controller because I had forgotten to specify the custom class name for the view controller in the main storyboard.

Something simple that is worth checking if all else looks ok

Because there might be a standard way you want to instantiate data in the abstract class. That way you can have classes that inherit from that class call the base constructor.

public abstract class A{

    private string data;

    protected A(string myString){
      data = myString;
    }

}

public class B : A {

     B(string myString) : base(myString){}

}

Use reduce, Luke!

function renderOptions(options) {
    return options.reduce(function (res, option) {
        if (!option.assigned) {
            res.push(someNewObject);
        }
        return res;
    }, []);   
}

In Visual Studio 2017 Spanish version.

"Depurar" -> "Ventanas" -> "Configuración de Excepciones"

and search "ContextSwitchDeadlock". Then, uncheck it. Or shortcut

Ctrl+D,E

Best.

The fragments onResume() or onPause() will be called only when the Activities onResume() or onPause() is called. They are tightly coupled to the Activity.

Read the Handling the Fragment Lifecycle section of this article.

I had trouble with the most popular answer (overthinking). It put AFolder in the \Server\MyFolder\AFolder and I wanted the contents of AFolder and below in MyFolder. This didn't work.

Copy-Item -Verbose -Path C:\MyFolder\AFolder -Destination \\Server\MyFolder -recurse -Force

Plus I needed to Filter and only copy *.config files.

This didn't work, with "\*" because it did not recurse

Copy-Item -Verbose -Path C:\MyFolder\AFolder\* -Filter *.config -Destination \\Server\MyFolder -recurse -Force

I ended up lopping off the beginning of the path string, to get the childPath relative to where I was recursing from. This works for the use-case in question and went down many subdirectories, which some other solutions do not.

Get-Childitem -Path "$($sourcePath)/**/*.config" -Recurse | 
ForEach-Object {
  $childPath = "$_".substring($sourcePath.length+1)
  $dest = "$($destPath)\$($childPath)" #this puts a \ between dest and child path
  Copy-Item -Verbose -Path $_ -Destination $dest -Force   
}

It's perfectly safe as long as you always access the values through the struct via the . (dot) or -> notation.

What's not safe is taking the pointer of unaligned data and then accessing it without taking that into account.

Also, even though each item in the struct is known to be unaligned, it's known to be unaligned in a particular way, so the struct as a whole must be aligned as the compiler expects or there'll be trouble (on some platforms, or in future if a new way is invented to optimise unaligned accesses).

Hi we can use ToLower Method sometimes it is not filter.

EmployeeId = Session["EmployeeID"].ToString();
var rows = dtCrewList.AsEnumerable().Where
   (row => row.Field<string>("EmployeeId").ToLower()== EmployeeId.ToLower());

   if (rows.Any())
   {
        tblFiltered = rows.CopyToDataTable<DataRow>();
   }

To anyone still struggling, be sure to check and see if you've set a line-height value on the font in question: it could be overriding the word wrap.

As short as @jumbo's answer is :-) you can do it even more tersely. This just returns the Count property of the array returned by the antecedent sub-expression:

@(Get-Alias).Count

A couple points to note:

1. You can put an arbitrarily complex expression in place of Get-Alias, for example:

   @(Get-Process | ? { $_.ProcessName -eq "svchost" }).Count
   

2. The initial at-sign (@) is necessary for a robust solution. As long as the answer is two or greater you will get an equivalent answer with or without the @, but when the answer is zero or one you will get no output unless you have the @ sign! (It forces the Count property to exist by forcing the output to be an array.)

2012.01.30 Update

The above is true for PowerShell V2. One of the new features of PowerShell V3 is that you do have a Count property even for singletons, so the at-sign becomes unimportant for this scenario.

I used this simple way of doing it.

To split digits

var N = 69;
var arr = N.toString().split('').map(Number)
// outputs [6,9]
console.log( arr ); 

To add them together

console.log(arr.reduce( (a,b) => a+b )); // 15

There is another option that hasn't been explored here: declaring Xerces dependencies in Maven as optional:

<dependency>
   <groupId>xerces</groupId>
   <artifactId>xercesImpl</artifactId>
   <version>...</version>
   <optional>true</optional>
</dependency>

Basically what this does is to force all dependents to declare their version of Xerces or their project won't compile. If they want to override this dependency, they are welcome to do so, but then they will own the potential problem.

This creates a strong incentive for downstream projects to:

• Make an active decision. Do they go with the same version of Xerces or use something else?
• Actually test their parsing (e.g. through unit testing) and classloading as well as not to clutter up their classpath.

Not all developers keep track of newly introduced dependencies (e.g. with mvn dependency:tree). This approach will immediately bring the matter to their attention.

It works quite well at our organization. Before its introduction, we used to live in the same hell the OP is describing.

I agree with Scott, what he listed worked. However just running it from any directory did not work. I had to cd to the /home/*/.swt/lib/linux/x86_64/ 0 files

directory first and then run the link command:

For 32 bit:

ln -s /usr/lib/jni/libswt-* ~/.swt/lib/linux/x86/

And on Ubuntu 12.04 64 bit:

ln -s /usr/lib/jni/libswt-* ~/.swt/lib/linux/x86_64/

In my case I was not actually trying to run cakephp locally, I was just trying to get it to auto update locally using composer (because I am playing with writing plugins that you install with composer). Since I don't actually even run it locally I could simply ignore requirements by adding the --ignore-platform-reqs flag.

php composer.phar update --ignore-platform-reqs

you can do this by : CellDoubleClick Event this is code.

private void datagridview1_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
    {
        MessageBox.Show(e.RowIndex.ToString());
    }

For anyone looking to completely remove the soft-nav on a rooted (or custom ROM) android device, you can modify the build.prop text file within the system folder.

Set the following variable/value:

gemu.hw.mainkeys=1

This is what vendors use to disable the soft nav, when they have physical buttons.

What is the difference between <init-param> and <context-param> !?

Single servlet versus multiple servlets.

Other Answers give details, but here is the summary:

A web app, that is, a “context”, is made up of one or more servlets.

• <init-param> defines a value available to a single specific servlet within a context.
• <context-param> defines a value available to all the servlets within a context.

Yes, you can input multiple items from cin, using exactly the syntax you describe. The result is essentially identical to:

cin >> a;
cin >> b;
cin >> c;

This is due to a technique called "operator chaining".

Each call to operator>>(istream&, T) (where T is some arbitrary type) returns a reference to its first argument. So cin >> a returns cin, which can be used as (cin>>a)>>b and so forth.

Note that each call to operator>>(istream&, T) first consumes all whitespace characters, then as many characters as is required to satisfy the input operation, up to (but not including) the first next whitespace character, invalid character, or EOF.

If you encounter this error in Android Studio:

Check the Gradle module file(s) -> defaultConfig -> applicationId setting.

Check the AndroidManifest.xml -> manifest package tag.

Check the package declarations in all src java files.

Sync, Clean then Rebuild with Gradle.

NEVER build your own R file. R is auto-generated from your source java files and build settings.

There's actually a pretty sollution:

function updateArray(context, targetName, callback) {
    context[targetName] = context[targetName].map(callback);
}

var myArray = ['a', 'b', 'c'];
updateArray(this, 'myArray', item => {return '_' + item});

console.log(myArray); //(3) ["_a", "_b", "_c"]

inf is infinity - a value that is greater than any other value. -inf is therefore smaller than any other value.

nan stands for Not A Number, and this is not equal to 0.

Although positive and negative infinity can be said to be symmetric about 0, the same can be said for any value n, meaning that the result of adding the two yields nan. This idea is discussed in this math.se question.

Because nan is (literally) not a number, you can't do arithmetic with it, so the result of the second operation is also not a number (nan)

Along with the already suggested methods of using a foreach loop, I thought I'd also mention that any object that implements IEnumerable also provides an IEnumerator interface via the GetEnumerator method. Although this method is usually not necessary, this can be used for manually iterating over collections, and is particularly useful when writing your own extension methods for collections.

IEnumerable<T> mySequence;
using (var sequenceEnum = mySequence.GetEnumerator())
{
    while (sequenceEnum.MoveNext())
    {
        // Do something with sequenceEnum.Current.
    }
}

A prime example is when you want to iterate over two sequences concurrently, which is not possible with a foreach loop.

In ASP.Net you can use System.Web.HttpUtility to safely encode the cookie value before writing to the cookie and convert it back to its original form on reading it out.

// Encode
HttpUtility.UrlEncode(cookieData);

// Decode
HttpUtility.UrlDecode(encodedCookieData);

This will stop ampersands and equals signs spliting a value into a bunch of name/value pairs as it is written to a cookie.

to add parameter to post urls (to perma-links), i use this:

add_filter( 'post_type_link', 'append_query_string', 10, 2 );
function append_query_string( $url, $post ) 
{
    return add_query_arg('my_pid',$post->ID, $url);
}

output:

http://yoursite.com/pagename?my_pid=12345678

Is there a way to unmarshal the nested bar property and assign it directly to a struct property without creating a nested struct?

No, encoding/json cannot do the trick with ">some>deep>childnode" like encoding/xml can do. Nested structs is the way to go.