Go to Tools->Options on menu on main window. Under Environment container, you can see Fonts and Colors. You can select font and color which you want.

I know this is an old post but I thought I might add a thought for people who come across a similar problem. I'm assuming that you are using ASP.NET MVC since you mentioned site.css.

Check your Bundles.config file to see if you have BundleTable.EnableOptimizations = true; If you don't, then it can be your problem since this allows the program to be bundles and "minified". Depending on if you run in debug mode or not this could have an effect.

When I try:

set guifont=Consolas:h16

I get: Warning: Font "Consolas" reports bad fixed pitch metrics

and the following is work, and don't show the waring.

autocmd vimenter * GuiFont! Consolas:h16

by the way, if you want to use the mouse wheel to control the font-size, then you can add:

function! AdjustFontSize(amount)
    let s:font_size = s:font_size + a:amount
    :execute "GuiFont! Consolas:h" . s:font_size
endfunction

noremap <C-ScrollWheelUp> :call AdjustFontSize(1)<CR>
noremap <C-ScrollWheelDown> :call AdjustFontSize(-1)<CR>

and if you want to pick the font, you can set

set guifont=*

will bring up a font requester, where you can pick the font you want.

I use MonteCarlo, which is based on ProFont but has a bold face too. That way IDEs/editors that use bold as part of their syntax highlighting leave your text still properly fixed width.

java example http://bok.net.nyud.net/MonteCarlo/images/java-example.png quick brown fox example http://bok.net.nyud.net/MonteCarlo/images/screenshot-small.gif

Like ProFont, Proggy & others, its quite small (& being bitmap based, obviously doesn't scale), but I like a small font for coding and its still extremely clear and easy on the eyes.

Declare global variables:

var mapOptions;
var map;
var infowindow;
var marker;
var contentString;
var image;

In intialize use the map's addEvent method:

google.maps.event.addListener(map, 'click', function() {
    if (infowindow) {
        infowindow.close();
    }
});

The following example creates a file chooser and displays it as first an open-file dialog and then as a save-file dialog:

String filename = File.separator+"tmp";
JFileChooser fc = new JFileChooser(new File(filename));

// Show open dialog; this method does not return until the dialog is closed
fc.showOpenDialog(frame);
File selFile = fc.getSelectedFile();

// Show save dialog; this method does not return until the dialog is closed
fc.showSaveDialog(frame);
selFile = fc.getSelectedFile();

Here is a more elaborate example that creates two buttons that create and show file chooser dialogs.

// This action creates and shows a modal open-file dialog.
public class OpenFileAction extends AbstractAction {
    JFrame frame;
    JFileChooser chooser;

    OpenFileAction(JFrame frame, JFileChooser chooser) {
        super("Open...");
        this.chooser = chooser;
        this.frame = frame;
    }

    public void actionPerformed(ActionEvent evt) {
        // Show dialog; this method does not return until dialog is closed
        chooser.showOpenDialog(frame);

        // Get the selected file
        File file = chooser.getSelectedFile();
    }
};

// This action creates and shows a modal save-file dialog.
public class SaveFileAction extends AbstractAction {
    JFileChooser chooser;
    JFrame frame;

    SaveFileAction(JFrame frame, JFileChooser chooser) {
        super("Save As...");
        this.chooser = chooser;
        this.frame = frame;
    }

    public void actionPerformed(ActionEvent evt) {
        // Show dialog; this method does not return until dialog is closed
        chooser.showSaveDialog(frame);

        // Get the selected file
        File file = chooser.getSelectedFile();
    }
};

Four months ago I have contacted the support and they told me it was a problem on their side, they have temporarily fix it (for the current commit).

Today I tried again

1. I deleted the gh-pages branch on github

   git push origin --delete gh-pages

2. I deleted the gh-pages branch on local

   git branch -D gh-pages

3. I reinitialized git

   git init

4. I recreated the branch on local

   git branch gh-pages

5. I pushed the gh-pages branch to github

   git push origin gh-pages

Works fine, I can finally update my files on the page.

Along the same lines as SCFrench's answer, but with a more C# style spin..

I would (and often do) make a class containing multiple static methods. For example:

classdef Statistics

    methods(Static)
        function val = MyMean(data)
            val = mean(data);
        end

        function val = MyStd(data)
            val = std(data);
        end
    end

end

As the methods are static you don't need to instansiate the class. You call the functions as follows:

data = 1:10;

mean = Statistics.MyMean(data);
std = Statistics.MyStd(data);     

Standard SQL disallows references to column aliases in a WHERE clause. This restriction is imposed because when the WHERE clause is evaluated, the column value may not yet have been determined. For example, the following query is illegal:

SELECT id, COUNT(*) AS cnt FROM tbl_name WHERE cnt > 0 GROUP BY id;

The '); ends the query, it doesn't start a comment. Then it drops the students table and comments the rest of the query that was supposed to be executed.

You can't install and run in one go - but you can certainly use adb to start your already installed application. Use adb shell am start to fire an intent - you will need to use the correct intent for your application though. A couple of examples:

adb shell am start -a android.intent.action.MAIN -n com.android.settings/.Settings 

will launch Settings, and

adb shell am start -a android.intent.action.MAIN -n com.android.browser/.BrowserActivity 

will launch the Browser. If you want to point the Browser at a particular page, do this

adb shell am start -a android.intent.action.VIEW -n com.android.browser/.BrowserActivity http://www.google.co.uk

If you don't know the name of the activities in the APK, then do this

aapt d xmltree <path to apk> AndroidManifest.xml

the output content will includes a section like this:

   E: activity (line=32)
    A: android:theme(0x01010000)=@0x7f080000
    A: android:label(0x01010001)=@0x7f070000
    A: android:name(0x01010003)="com.anonymous.MainWindow"
    A: android:launchMode(0x0101001d)=(type 0x10)0x3
    A: android:screenOrientation(0x0101001e)=(type 0x10)0x1
    A: android:configChanges(0x0101001f)=(type 0x11)0x80
    E: intent-filter (line=33)
      E: action (line=34)
        A: android:name(0x01010003)="android.intent.action.MAIN"
        XE: (line=34)

That tells you the name of the main activity (MainWindow), and you can now run

adb shell am start -a android.intent.action.MAIN -n com.anonymous/.MainWindow

In Swift 4.2 and Xcode 10.1

You have 4 ways total to delay. Out of these option 1 is preferable to call or execute a function after some time. The sleep() is least case in use.

Option 1.

DispatchQueue.main.asyncAfter(deadline: .now() + 5.0) {
    self.yourFuncHere()
}
//Your function here    
func yourFuncHere() {

}

Option 2.

perform(#selector(yourFuncHere2), with: nil, afterDelay: 5.0)

//Your function here  
@objc func yourFuncHere2() {
    print("this is...")
}

Option 3.

Timer.scheduledTimer(timeInterval: 5.0, target: self, selector: #selector(yourFuncHere3), userInfo: nil, repeats: false)

//Your function here  
@objc func yourFuncHere3() {

}

Option 4.

sleep(5)

If you want to call a function after some time to execute something don't use sleep.

As of Java 8, there is an officially supported API for Base64 encoding and decoding. In time this will probably become the default choice.

The API includes the class java.util.Base64 and its nested classes. It supports three different flavors: basic, URL safe, and MIME.

Sample code using the "basic" encoding:

import java.util.Base64;

byte[] bytes = "Hello, World!".getBytes("UTF-8");
String encoded = Base64.getEncoder().encodeToString(bytes);
byte[] decoded = Base64.getDecoder().decode(encoded);

The documentation for java.util.Base64 includes several more methods for configuring encoders and decoders, and for using different classes as inputs and outputs (byte arrays, strings, ByteBuffers, java.io streams).

Use WEEKDAY() instead of DAYOFWEEK(), it begins on Monday.

If you need to start at index 1, use or WEEKDAY() + 1.

I faced same issue in android studio 3.2.1, solved the issue by setting git path in System Environment variable

C:\Program Files\Git\bin\,C:\Program Files\Git\bin\

And I imported the project once again and solved the issue!!!

Note : Check your android studio git settings has properly set the correct path to git.exe

You will have to save the relationship on the server side. The value is the only part that is transmitted when the form is posted. You could do something nasty like...

<option value="2|Dog">Dog</option>

Then split the result apart if you really wanted to, but that is an ugly hack and a waste of bandwidth assuming the numbers are truly unique and have a one to one relationship with the text.

The best way would be to create an array, and loop over the array to create the HTML. Once the form is posted you can use the value to look up the text in that same array.

I used a third party library called use-force-update to force render my react functional components. Worked like charm. Just use import the package in your project and use like this.

import useForceUpdate from 'use-force-update';

const MyButton = () => {

  const forceUpdate = useForceUpdate();

  const handleClick = () => {
    alert('I will re-render now.');
    forceUpdate();
  };

  return <button onClick={handleClick} />;
};

Maybe these

• JArgs command line option parsing suite for Java - this tiny project provides a convenient, compact, pre-packaged and comprehensively documented suite of command line option parsers for the use of Java programmers. Initially, parsing compatible with GNU-style 'getopt' is provided.

• ritopt, The Ultimate Options Parser for Java - Although, several command line option standards have been preposed, ritopt follows the conventions prescribed in the opt package.

This one is valid HTML5 and it is absolutely fine without closing it. It is a so-called void element:

<img src='stackoverflow.png'>

The following are valid XHTML tags. They have to be closed. The later one is also fine in HTML 5:

<img src='stackoverflow.png'></img>
<img src='stackoverflow.png' />

How about ['hello', 'hi', 'howdy'].includes(str)?

Move files with filter( using Path, os,shutil modules):

from pathlib import Path
import shutil
import os

src_path ='/media/shakil/New Volume/python/src'
trg_path ='/media/shakil/New Volume/python/trg'

for src_file in Path(src_path).glob('*.txt*'):
    shutil.move(os.path.join(src_path,src_file),trg_path)

Try simple typecasting

char c = (char) i;

You only need to prefix an if statement with @ if you're not already inside a razor code block.

Edit: You have a couple of things wrong with your code right now.

You're declaring nmb, but never actually doing anything with the value. So you need figure out what that's supposed to actually be doing. In order to fix your code, you need to make a couple of tiny changes:

@if (ViewBag.Articles != null)
{
    int nmb = 0;
    foreach (var item in ViewBag.Articles)
    {
        if (nmb % 3 == 0)
        {
            @:<div class="row"> 
        }

        <a href="@Url.Action("Article", "Programming", new { id = item.id })">
            <div class="tasks">
                <div class="col-md-4">
                    <div class="task important">
                        <h4>@item.Title</h4>
                        <div class="tmeta">
                            <i class="icon-calendar"></i>
                                @item.DateAdded - Pregleda:@item.Click
                            <i class="icon-pushpin"></i> Authorrr
                        </div>
                    </div>
                </div>
            </div>
        </a>
        if (nmb % 3 == 0)
        {
            @:</div>
        }
    }
}

The important part here is the @:. It's a short-hand of <text></text>, which is used to force the razor engine to render text.

One other thing, the HTML standard specifies that a tags can only contain inline elements, and right now, you're putting a div, which is a block-level element, inside an a.

T-SQL doesn't support arrays that I'm aware of.

What's your table structure? You could probably design a query that does this instead:

select
month,
sum(sales)
from sales_table
group by month
order by month

This example might help someone:

Note "origin" is my alias for remote "What is on Github"
Note "mybranch" is my alias for my branch "what is local" that I'm syncing with github
--your branch name is 'master' if you didn't create one. However, I'm using the different name mybranch to show where the branch name parameter is used.

What exactly are my remote repos on github?

$ git remote -v
origin  https://github.com/flipmcf/Playground.git (fetch)
origin  https://github.com/flipmcf/Playground.git (push)

Add the "other github repository of the same code" - we call this a fork:

$ git remote add someOtherRepo https://github.com/otherUser/Playground.git

$git remote -v
origin  https://github.com/flipmcf/Playground.git (fetch)
origin  https://github.com/flipmcf/Playground.git (push)
someOtherRepo https://github.com/otherUser/Playground.git (push)
someOtherRepo https://github.com/otherUser/Playground.git (fetch)

make sure our local repo is up to date:

$ git fetch

Change some stuff locally. let's say file ./foo/bar.py

$ git status
# On branch mybranch
# Changes to be committed:
#   (use "git reset HEAD <file>..." to unstage)
#
#   modified:   foo/bar.py

Review my uncommitted changes

$ git diff mybranch
diff --git a/playground/foo/bar.py b/playground/foo/bar.py
index b4fb1be..516323b 100655
--- a/playground/foo/bar.py
+++ b/playground/foo/bar.py
@@ -1,27 +1,29 @@
- This line is wrong
+ This line is fixed now - yea!
+ And I added this line too.

Commit locally.

$ git commit foo/bar.py -m"I changed stuff"
[myfork 9f31ff7] I changed stuff
1 files changed, 2 insertions(+), 1 deletions(-)

Now, I'm different than my remote (on github)

$ git status
# On branch mybranch
# Your branch is ahead of 'origin/mybranch' by 1 commit.
#
nothing to commit (working directory clean)

Diff this with remote - your fork: (this is frequently done with git diff master origin)

$ git diff mybranch origin
diff --git a/playground/foo/bar.py b/playground/foo/bar.py
index 516323b..b4fb1be 100655
--- a/playground/foo/bar.py
+++ b/playground/foo/bar.py
@@ -1,27 +1,29 @@
- This line is wrong
+ This line is fixed now - yea!
+ And I added this line too.

(git push to apply these to remote)

How does my remote branch differ from the remote master branch?

$ git diff origin/mybranch origin/master

How does my local stuff differ from the remote master branch?

$ git diff origin/master

How does my stuff differ from someone else's fork, master branch of the same repo?

$git diff mybranch someOtherRepo/master

You can use Amazon Corretto. It is free to use multiplatform, production-ready distribution of the OpenJDK. It comes with long-term support that will include performance enhancements and security fixes. Check the installation instructions here.

You can also check Zulu from Azul.

One more thing I like to highlight here is both Amazon Corretto and Zulu are TCK Compliant. You can see the OpenJDK builds comparison here and here.

The use of variables that have yet to been defined or set (implicitly or explicitly) is often a bad thing in any language, since it tends to indicate that the logic of the program hasn't been thought through properly, and is likely to result in unpredictable behaviour.

If you need to do it in Python, the following trick, which is similar to yours, will ensure that a variable has some value before use:

try:
    myVar
except NameError:
    myVar = None      # or some other default value.

# Now you're free to use myVar without Python complaining.

However, I'm still not convinced that's a good idea - in my opinion, you should try to refactor your code so that this situation does not occur.

Using Manjaro(Arch) Linux:

$ sudo pacman -S php-gd

In file /etc/php/php-ini, add the line:

extension=gd.so

if you are getting this exception again and again then download my-sql connector and paste in tomcat/WEB-INF/lib folder...note that some times WEB-INF folder does not contains lib folder, at that time manually create lib folder and paste mysql connector in that folder..definitely this will work.if still you got problem then check that your jdk must match your system. i.e if your system is 64 bit then jdk must be 64 bit

My data set is D3:D786, Column headings in D2, function in D1. Formula will ignore blank values.

=SUM(IF(FREQUENCY(IF(SUBTOTAL(3,OFFSET(D3,ROW(D3:D786)-ROW(D3),,1)),IF(D3:D786<>"",MATCH("~"&D3:D786,D3:D786&"",0))),ROW(D3:D786)-ROW(D3)+1),1))

When entering the formula, CTRL + SHIFT + ENTER

I found this at the site below, there's more explanations there about Excel that i didn't understand, if you're into that sort of thing.

http://www.mrexcel.com/forum/excel-questions/553903-count-unique-values-filtered-column.html#post2735467

I copied and pasted my dataset into a different sheet to verify it and it's worked for me.

You are modifying the list book_shop.values()[i], which is not getting updated in the dictionary. Whenever you call the values() method, it will give you the values available in dictionary, and here you are not modifying the data of the dictionary.

You have two ways:

First go to the particular path of Android SDK:

1) Open your command prompt and traverse to the platform-tools directory through it such as

$ cd Frameworks\Android-Sdk\platform-tools

2) Run your adb commands now such as to know that your adb is working properly :

$ adb devices OR adb logcat OR simply adb

Second way is :

1) Right click on your My Computer.

2) Open Environment variables.

3) Add new variable to your System PATH variable(Add if not exist otherwise no need to add new variable if already exist).

4) Add path of platform-tools directory to as value of this variable such as C:\Program Files\android-sdk\platform-tools.

5) Restart your computer once.

6) Now run the above adb commands such adb devices or other adb commands from anywhere in command prompt.

Also on you can fire a command on terminal setx PATH "%PATH%;C:\Program Files\android-sdk\platform-tools"

It depends upon the .NET Framework that you use. Check Jon Skeet's answer about Versions.

Here is short version of his answer.

C# 1.0 released with .NET 1.0

C# 1.2 (bizarrely enough); released with .NET 1.1

C# 2.0 released with .NET 2.0

C# 3.0 released with .NET 3.5

C# 4.0 released with .NET 4

C# 5.0 released with .NET 4.5

C# 6.0 released with .NET 4.6

C# 7.0 is released with .NET 4.6.2

C# 7.3 is released with .NET 4.7.2

C# 8.0 is released with NET Core 3.0

C# 9.0 is released with NET 5.0

I'll add a couple of index types

BITMAP - when you have very low number of different possible values, very fast and doesn't take up much space

PARTITIONED - allows the index to be partitioned based on some property usually advantageous on very large database objects for storage or performance reasons.

FUNCTION/EXPRESSION indexes - used to pre-calculate some value based on the table and store it in the index, a very simple example might be an index based on lower() or a substring function.

As mentioned by others in the comments, a really simple solution to this issue is to declare the database 'host' within the database configuration. Adding this answer just to make it a little more clear for anyone reading this.

In a Ruby on Rails app for example, edit /config/database.yml:

development:
  adapter: postgresql
  encoding: unicode
  database: database_name
  pool: 5
  host: localhost

Note: the last line added to specify the host. Prior to updating to Yosemite I never needed to specify the host in this way.

Hope this helps someone.

Cheers

Change this line:

The 2 should be 0. Every count starts at 0.

//Aboutme.Text = String.Format("{2}", reader.GetString(0));//wrong

//Aboutme.Text = String.Format("{0}", reader.GetString(0));//correct

Below, code snippet, will help you in understanding the mutex-lock-unlock concept. Attempt dry-run on the code. (further by varying the wait-time and process-time, you can build you understanding).

Code for your reference:

#include <stdio.h>
#include <pthread.h>

void in_progress_feedback(int);

int global = 0;
pthread_mutex_t mutex;
void *compute(void *arg) {

    pthread_t ptid = pthread_self();
    printf("ptid : %08x \n", (int)ptid);    

    int i;
    int lock_ret = 1;   
    do{

        lock_ret = pthread_mutex_trylock(&mutex);
        if(lock_ret){
            printf("lock failed(%08x :: %d)..attempt again after 2secs..\n", (int)ptid,  lock_ret);
            sleep(2);  //wait time here..
        }else{  //ret =0 is successful lock
            printf("lock success(%08x :: %d)..\n", (int)ptid, lock_ret);
            break;
        }

    } while(lock_ret);

        for (i = 0; i < 10*10 ; i++) 
        global++;

    //do some stuff here
    in_progress_feedback(10);  //processing-time here..

    lock_ret = pthread_mutex_unlock(&mutex);
    printf("unlocked(%08x :: %d)..!\n", (int)ptid, lock_ret);

     return NULL;
}

void in_progress_feedback(int prog_delay){

    int i=0;
    for(;i<prog_delay;i++){
    printf(". ");
    sleep(1);
    fflush(stdout);
    }

    printf("\n");
    fflush(stdout);
}

int main(void)
{
    pthread_t tid0,tid1;
    pthread_mutex_init(&mutex, NULL);
    pthread_create(&tid0, NULL, compute, NULL);
    pthread_create(&tid1, NULL, compute, NULL);
    pthread_join(tid0, NULL);
    pthread_join(tid1, NULL);
    printf("global = %d\n", global);
    pthread_mutex_destroy(&mutex);
          return 0;
}

If you are using HTML Form element instead Laravel Form Builder, you must place method_field between your form opening tag and closing end. By doing this you may explicitly define form method type.

<form>
{{ method_field('PUT') }}
</form>

There is certainly a shorter notation, but that was my approach:

gulp.task('check_env', function () {
  return new Promise(function (resolve, reject) {
    // gulp --dev
    var env = process.argv[3], isDev;
    if (env) {
      if (env == "--dev") {
        log.info("Dev Mode on");
        isDev = true;
      } else {
        log.info("Dev Mode off");
        isDev = false;
      }
    } else {
      if (variables.settings.isDev == true) {
        isDev = true;
      } else {
        isDev = false;
      }
    }
    resolve();
  });
});

If you want to set the env based to the actual Git branch (master/develop):

gulp.task('set_env', function (cb) {
  exec('git rev-parse --abbrev-ref HEAD', function (err, stdout, stderr) {
    git__branch = stdout.replace(/(\r\n|\n|\r)/gm, "");
    if (git__branch == "develop") {
      log.info("?Develop Branch");
      isCompressing = false;
    } else if (git__branch == "master") {
      log.info("Master Branch");
      isCompressing = true;
    } else {
      //TODO: check for feature-* branch
      log.warn("Unknown " + git__branch + ", maybe feat?");
      //isCompressing = variables.settings.isCompressing;
    }
    log.info(stderr);
    cb(err);
  });
  return;
})

P.s. For the log I added the following:

  var log = require('fancy-log');

In Case you need it, thats my default Task:

gulp.task('default',
  gulp.series('set_env', gulp.parallel('build_scss', 'minify_js', 'minify_ts', 'minify_html', 'browser_sync_func', 'watch'),
    function () {
    }));

Suggestions for optimization are welcome.

As I observed in my code. If once the value is fetched of body from Response, its become blank.

String str = response.body().string();  // {response:[]}

String str1  = response.body().string();  // BLANK

So I believe after fetching once the value from body, it become empty.

Suggestion : Store it in String, that can be used many time.

struct emp {
    int id;
    char *name;
};

struct emp get() {
    char *name = "John";

    struct emp e1 = {100, name};

    return (e1);
}

int main() {

    struct emp e2 = get();

    printf("%s\n", e2.name);
}

works fine with newer versions of compilers. Just like id, content of the name gets copied to the assigned structure variable.

In Oracle 12.2 and above the maximum object name length is 128 bytes.

In Oracle 12.1 and below the maximum object name length is 30 bytes.

When using size_t be careful with the following expression

size_t i = containner.find("mytoken");
size_t x = 99;
if (i-x>-1 && i+x < containner.size()) {
    cout << containner[i-x] << " " << containner[i+x] << endl;
}

You will get false in the if expression regardless of what value you have for x. It took me several days to realize this (the code is so simple that I did not do unit test), although it only take a few minutes to figure the source of the problem. Not sure it is better to do a cast or use zero.

if ((int)(i-x) > -1 or (i-x) >= 0)

Both ways should work. Here is my test run

size_t i = 5;
cerr << "i-7=" << i-7 << " (int)(i-7)=" << (int)(i-7) << endl;

The output: i-7=18446744073709551614 (int)(i-7)=-2

I would like other's comments.

You can use the styleSheets object:

document.styleSheets[0].cssRules[0].style.removeProperty("zoom");

Caveat #1: You have to know the index of your stylesheet and the index of your rule.

Caveat #2: This object is implemented inconsistently by the browsers; what works in one may not work in the others.

You can use the file Object to get the length of the file to initialize your array:

int length = Long.valueOf(file.length()).intValue();
byte[] byteArray = new byte[length];

If multiple clock are generated with different frequencies, then clock generation can be simplified if a procedure is called as concurrent procedure call. The time resolution issue, mentioned by Martin Thompson, may be mitigated a little by using different high and low time in the procedure. The test bench with procedure for clock generation is:

library ieee;
use ieee.std_logic_1164.all;

entity tb is
end entity;

architecture sim of tb is

  -- Procedure for clock generation
  procedure clk_gen(signal clk : out std_logic; constant FREQ : real) is
    constant PERIOD    : time := 1 sec / FREQ;        -- Full period
    constant HIGH_TIME : time := PERIOD / 2;          -- High time
    constant LOW_TIME  : time := PERIOD - HIGH_TIME;  -- Low time; always >= HIGH_TIME
  begin
    -- Check the arguments
    assert (HIGH_TIME /= 0 fs) report "clk_plain: High time is zero; time resolution to large for frequency" severity FAILURE;
    -- Generate a clock cycle
    loop
      clk <= '1';
      wait for HIGH_TIME;
      clk <= '0';
      wait for LOW_TIME;
    end loop;
  end procedure;

  -- Clock frequency and signal
  signal clk_166 : std_logic;
  signal clk_125 : std_logic;

begin

  -- Clock generation with concurrent procedure call
  clk_gen(clk_166, 166.667E6);  -- 166.667 MHz clock
  clk_gen(clk_125, 125.000E6);  -- 125.000 MHz clock

  -- Time resolution show
  assert FALSE report "Time resolution: " & time'image(time'succ(0 fs)) severity NOTE;

end architecture;

The time resolution is printed on the terminal for information, using the concurrent assert last in the test bench.

If the clk_gen procedure is placed in a separate package, then reuse from test bench to test bench becomes straight forward.

Waveform for clocks are shown in figure below.

An more advanced clock generator can also be created in the procedure, which can adjust the period over time to match the requested frequency despite the limitation by time resolution. This is shown here:

-- Advanced procedure for clock generation, with period adjust to match frequency over time, and run control by signal
procedure clk_gen(signal clk : out std_logic; constant FREQ : real; PHASE : time := 0 fs; signal run : std_logic) is
  constant HIGH_TIME   : time := 0.5 sec / FREQ;  -- High time as fixed value
  variable low_time_v  : time;                    -- Low time calculated per cycle; always >= HIGH_TIME
  variable cycles_v    : real := 0.0;             -- Number of cycles
  variable freq_time_v : time := 0 fs;            -- Time used for generation of cycles
begin
  -- Check the arguments
  assert (HIGH_TIME /= 0 fs) report "clk_gen: High time is zero; time resolution to large for frequency" severity FAILURE;
  -- Initial phase shift
  clk <= '0';
  wait for PHASE;
  -- Generate cycles
  loop
    -- Only high pulse if run is '1' or 'H'
    if (run = '1') or (run = 'H') then
      clk <= run;
    end if;
    wait for HIGH_TIME;
    -- Low part of cycle
    clk <= '0';
    low_time_v := 1 sec * ((cycles_v + 1.0) / FREQ) - freq_time_v - HIGH_TIME;  -- + 1.0 for cycle after current
    wait for low_time_v;
    -- Cycle counter and time passed update
    cycles_v := cycles_v + 1.0;
    freq_time_v := freq_time_v + HIGH_TIME + low_time_v;
  end loop;
end procedure;

Again reuse through a package will be nice.

You are probably trying to push to a private repository. In that case, you will have to ask the admin for Collaborator access to be authenticated.

I came across this SO question while searching for a similar problem. I had to build a 2D array and then replace some elements of each list (in 2D array) with elements from a dict. I then came across this SO question which helped me, maybe this will help other beginners to get around. The key trick was to initialize the 2D array as an numpy array and then using array[i,j] instead of array[i][j].

For reference this is the piece of code where I had to use this :

nd_array = []
for i in range(30):
    nd_array.append(np.zeros(shape = (32,1)))
new_array = []
for i in range(len(lines)):
    new_array.append(nd_array)
new_array = np.asarray(new_array)
for i in range(len(lines)):
    splits = lines[i].split(' ')
    for j in range(len(splits)):
        #print(new_array[i][j])
        new_array[i,j] = final_embeddings[dictionary[str(splits[j])]-1].reshape(32,1)

Now I know we can use list comprehension but for simplicity sake I am using a nested for loop. Hope this helps others who come across this post.

Another very simple way to estimate the sharpness of an image is to use a Laplace (or LoG) filter and simply pick the maximum value. Using a robust measure like a 99.9% quantile is probably better if you expect noise (i.e. picking the Nth-highest contrast instead of the highest contrast.) If you expect varying image brightness, you should also include a preprocessing step to normalize image brightness/contrast (e.g. histogram equalization).

I've implemented Simon's suggestion and this one in Mathematica, and tried it on a few test images:

The first test blurs the test images using a Gaussian filter with a varying kernel size, then calculates the FFT of the blurred image and takes the average of the 90% highest frequencies:

testFft[img_] := Table[
  (
   blurred = GaussianFilter[img, r];
   fft = Fourier[ImageData[blurred]];
   {w, h} = Dimensions[fft];
   windowSize = Round[w/2.1];
   Mean[Flatten[(Abs[
       fft[[w/2 - windowSize ;; w/2 + windowSize, 
         h/2 - windowSize ;; h/2 + windowSize]]])]]
   ), {r, 0, 10, 0.5}]

Result in a logarithmic plot:

The 5 lines represent the 5 test images, the X axis represents the Gaussian filter radius. The graphs are decreasing, so the FFT is a good measure for sharpness.

This is the code for the "highest LoG" blurriness estimator: It simply applies an LoG filter and returns the brightest pixel in the filter result:

testLaplacian[img_] := Table[
  (
   blurred = GaussianFilter[img, r];
   Max[Flatten[ImageData[LaplacianGaussianFilter[blurred, 1]]]];
   ), {r, 0, 10, 0.5}]

Result in a logarithmic plot:

The spread for the un-blurred images is a little better here (2.5 vs 3.3), mainly because this method only uses the strongest contrast in the image, while the FFT is essentially a mean over the whole image. The functions are also decreasing faster, so it might be easier to set a "blurry" threshold.

Late answer but finger also shows more information on user

  sudo apt-get finger 
  finger "$username"

If none of the above option work, use the following :

$(".datepicker").datepicker();
$(".datepicker").datepicker("setDate", new Date());

This worked for me.

Just to add to the thread as a POSSIBLE solution, I faced a similar issue when developing on a Linux system that was behind a company firewall. However, using a Windows XP machine, Eclipse was able to access different update sites just fine as both the manual and native network connection providers worked just fine using the company proxy.

After stumbling around for some time, I came across a discussion about using NTLMv2 and an implementation to be found at http://cntlm.sourceforge.net/. To whomever posted this, I give much credit to as it helped me get past the issue running on Linux. As a side note, I was using Eclipse 3.6.2 / Helios on both the Linux and Windows distros.

Best of luck on finding a solution!

You can clean cache in React Native >= 0.50 and npm > 5 :

watchman watch-del-all && 
rm -rf $TMPDIR/react-native-packager-cache-* &&
rm -rf $TMPDIR/metro-bundler-cache-* && 
rm -rf node_modules/ 
&& npm cache clean --force &&
npm install && 
npm start -- --reset-cache

Apart from cleaning npm cache you might need to reset simulator or clean build etc.

Add a hidden reset button :

<input id="Reset1" type="reset" value="reset" class="hidden" />

Click the reset button to clear the input.

$("#Reset1").click();

tl;dr

Data structures (DS) are important because they are used to perform operations on data which basically implies: take some input, process it, and give back the output.

Some data structures are more useful than others in some particular cases. Therefore, it is quite unfair to ask which (DS) is more efficient/speedy. It is like asking which tool is more efficient between a knife and fork. I mean all depends on the situation.

Lists

A list is mutable sequence, typically used to store collections of homogeneous items.

Sets

A set object is an unordered collection of distinct hashable objects. It is commonly used to test membership, remove duplicates from a sequence, and compute mathematical operations such as intersection, union, difference, and symmetric difference.

Usage

From some of the answers, it is clear that a list is quite faster than a set when iterating over the values. On the other hand, a set is faster than a list when checking if an item is contained within it. Therefore, the only thing you can say is that a list is better than a set for some particular operations and vice-versa.

This is the better solution:

verify(mock_contractsDao, times(1)).save(Mockito.eq("Parameter I'm expecting"));

For VB.NET, you can place the following before your web request:

Const _Tls12 As SslProtocols = DirectCast(&HC00, SslProtocols)
Const Tls12 As SecurityProtocolType = DirectCast(_Tls12, SecurityProtocolType)
ServicePointManager.SecurityProtocol = Tls12

This solved my security issue on .NET 3.5.

After finding this StackOverflow question/answer

Complex type is getting null in a ApiController parameter

the [FromBody] attribute on the controller method needs to be [FromUri] since a GET does not have a body. After this change the "filter" complex object is passed correctly.

Try setting its position to absolute. That takes it out of the flow of the document.

If you want to set through xml using android's default color codes, then you need to do as below:

android:background="@android:color/white"

If you have colors specified in your project's colors.xml, then use:

android:background="@color/white"

If you want to do programmatically, then do:

linearlayout.setBackgroundColor(Color.WHITE);

Just make sure put single space before and after "and" Keyword..

I remember my CompSci professor saying never to use floats for currency.

The reason for that is how the IEEE specification defines floats in binary format. Basically, it stores sign, fraction and exponent to represent a Float. It's like a scientific notation for binary (something like +1.43*10^2). Because of that, it is impossible to store fractions and decimals in Float exactly.

That's why there is a Decimal format. If you do this:

irb:001:0> "%.47f" % (1.0/10)
=> "0.10000000000000000555111512312578270211815834045" # not "0.1"!

whereas if you just do

irb:002:0> (1.0/10).to_s
=> "0.1" # the interprer rounds the number for you

So if you are dealing with small fractions, like compounding interests, or maybe even geolocation, I would highly recommend Decimal format, since in decimal format 1.0/10 is exactly 0.1.

However, it should be noted that despite being less accurate, floats are processed faster. Here's a benchmark:

require "benchmark" 
require "bigdecimal" 

d = BigDecimal.new(3) 
f = Float(3)

time_decimal = Benchmark.measure{ (1..10000000).each { |i| d * d } } 
time_float = Benchmark.measure{ (1..10000000).each { |i| f * f } }

puts time_decimal 
#=> 6.770960 seconds 
puts time_float 
#=> 0.988070 seconds

Answer

Use float when you don't care about precision too much. For example, some scientific simulations and calculations only need up to 3 or 4 significant digits. This is useful in trading off accuracy for speed. Since they don't need precision as much as speed, they would use float.

Use decimal if you are dealing with numbers that need to be precise and sum up to correct number (like compounding interests and money-related things). Remember: if you need precision, then you should always use decimal.

Just add

<IfModule mod_headers.c>
    Header set Access-Control-Allow-Origin "*"
</IfModule>

to the .htaccess file in the root of the website you are trying to connect with.

If you have multiple numeric fields, I suggest subclassing UITextField to create a NumericTextField that always displays a numeric keyboard with a done button. Then, simply associate your numeric fields with this class in the Interface Builder and you won't need any additional code in any of your View Controllers. The following is Swift 3.0 class that I'm using in Xcode 8.0.

class NumericTextField: UITextField {
   let numericKbdToolbar = UIToolbar()

    // MARK: Initilization
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        self.initialize()
    }

    override init(frame: CGRect) {
        super.init(frame: frame)
        self.initialize()
    }

    // Sets up the input accessory view with a Done button that closes the keyboard
    func initialize()
    {
        self.keyboardType = UIKeyboardType.numberPad

        numericKbdToolbar.barStyle = UIBarStyle.default
        let space = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.flexibleSpace, target: nil, action: nil)
        let callback = #selector(NumericTextField.finishedEditing)
        let donebutton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.done, target: self, action: callback)
        numericKbdToolbar.setItems([space, donebutton], animated: false)
        numericKbdToolbar.sizeToFit()
        self.inputAccessoryView = numericKbdToolbar
    }

    // MARK: On Finished Editing Function
    func finishedEditing()
    {
        self.resignFirstResponder()
    }
}

Swift 4.2

class NumericTextField: UITextField {
    let numericKbdToolbar = UIToolbar()

    // MARK: Initilization
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        self.initialize()
    }

    override init(frame: CGRect) {
        super.init(frame: frame)
        self.initialize()
    }

    // Sets up the input accessory view with a Done button that closes the keyboard
    func initialize()
    {
        self.keyboardType = UIKeyboardType.numberPad

        numericKbdToolbar.barStyle = UIBarStyle.default
        let space = UIBarButtonItem(barButtonSystemItem: UIBarButtonItem.SystemItem.flexibleSpace, target: nil, action: nil)
        let callback = #selector(NumericTextField.finishedEditing)
        let donebutton = UIBarButtonItem(barButtonSystemItem: UIBarButtonItem.SystemItem.done, target: self, action: callback)
        numericKbdToolbar.setItems([space, donebutton], animated: false)
        numericKbdToolbar.sizeToFit()
        self.inputAccessoryView = numericKbdToolbar
    }

    // MARK: On Finished Editing Function
    @objc func finishedEditing()
    {
        self.resignFirstResponder()
    }
}

In my case (want to reset and get a fresh database),

First I has got the error message : There is already an object named 'TABLENAME' in the database.

and I saw, a little bit before:

"Applying migration '20111111111111_InitialCreate'.
Failed executing DbCommand (16ms) [Parameters=[], CommandType='Text', CommandTimeout='30']
CREATE TABLE MYFIRSTTABLENAME"

My database was created, but no record in migrations history.

I drop all tables except dbo.__MigrationsHistory

MigrationsHistory was empty.

Run dotnet ef database update -c StudyContext --verbose

(--verbose just for fun)

and got Done.

The difference between absolute and relative imports come into play only when you import a module from a package and that module imports an other submodule from that package. See the difference:

$ mkdir pkg
$ touch pkg/__init__.py
$ touch pkg/string.py
$ echo 'import string;print(string.ascii_uppercase)' > pkg/main1.py
$ python2
Python 2.7.9 (default, Dec 13 2014, 18:02:08) [GCC] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pkg.main1
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "pkg/main1.py", line 1, in <module>
    import string;print(string.ascii_uppercase)
AttributeError: 'module' object has no attribute 'ascii_uppercase'
>>> 
$ echo 'from __future__ import absolute_import;import string;print(string.ascii_uppercase)' > pkg/main2.py
$ python2
Python 2.7.9 (default, Dec 13 2014, 18:02:08) [GCC] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pkg.main2
ABCDEFGHIJKLMNOPQRSTUVWXYZ
>>> 

In particular:

$ python2 pkg/main2.py
Traceback (most recent call last):
  File "pkg/main2.py", line 1, in <module>
    from __future__ import absolute_import;import string;print(string.ascii_uppercase)
AttributeError: 'module' object has no attribute 'ascii_uppercase'
$ python2
Python 2.7.9 (default, Dec 13 2014, 18:02:08) [GCC] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pkg.main2
ABCDEFGHIJKLMNOPQRSTUVWXYZ
>>> 
$ python2 -m pkg.main2
ABCDEFGHIJKLMNOPQRSTUVWXYZ

Note that python2 pkg/main2.py has a different behaviour then launching python2 and then importing pkg.main2 (which is equivalent to using the -m switch).

If you ever want to run a submodule of a package always use the -m switch which prevents the interpreter for chaining the sys.path list and correctly handles the semantics of the submodule.

Also, I much prefer using explicit relative imports for package submodules since they provide more semantics and better error messages in case of failure.

A potentially simpler solution:

get-service "servicename*" | Where {$_.Status -eq 'Stopped'} | start-service

• z means (un)z_ip.
• x means ex_tract files from the archive.
• v means print the filenames v_erbosely.
• f means the following argument is a f_ilename.

For more details, see tar's man page.

Even I faced same error, I fixed it afterwards... Two things you need to look into

1. Whether your system path is correctly set in your environment variables
2. Check the pre-processors in Project Properties->c/c++->Pre-processors. Check whether you have included _CONSOLE, this was causing error for me. For Some applications you need to include WIN32;_WINDOWS;_CONSOLE;_DEBUG;QT_DLL;QT_GUI_LIB;QT_NETWORK_LIB;QT_CORE_LIB;COIN_DLL;SOQT_DLL;QT_DEBUG;

I got this error while I was working in coin3D Application.

Yes, for react,

for becomes htmlFor

class becomes className

etc.

see full list of how HTML attributes are changed here:

https://facebook.github.io/react/docs/dom-elements.html

Setting a min-width on child elements will also create a breakpoint. For example breaking every 3 elements,

flex-grow: 1;
min-width: 33%; 

If there are 4 elements, this will have the 4th element wrap taking the full 100%. If there are 5 elements, the 4th and 5th elements will wrap and take each 50%.

Make sure to have parent element with,

flex-wrap: wrap

In C++, variable length arrays are not legal. G++ allows this as an "extension" (because C allows it), so in G++ (without being -pedantic about following the C++ standard), you can do:

int n = 10;
double a[n]; // Legal in g++ (with extensions), illegal in proper C++

If you want a "variable length array" (better called a "dynamically sized array" in C++, since proper variable length arrays aren't allowed), you either have to dynamically allocate memory yourself:

int n = 10;
double* a = new double[n]; // Don't forget to delete [] a; when you're done!

Or, better yet, use a standard container:

int n = 10;
std::vector<double> a(n); // Don't forget to #include <vector>

If you still want a proper array, you can use a constant, not a variable, when creating it:

const int n = 10;
double a[n]; // now valid, since n isn't a variable (it's a compile time constant)

Similarly, if you want to get the size from a function in C++11, you can use a constexpr:

constexpr int n()
{
    return 10;
}

double a[n()]; // n() is a compile time constant expression

The -maxdepth option should be before the -name option, like below.,

find . -maxdepth 1 -name "string" -print

Add a random query string to the src

You could either do this manually by incrementing the querystring each time you make a change:

<script src="test.js?version=1"></script>

Or if you are using a server side language, you could automatically generate this:

ASP.NET:

<script src="test.js?rndstr=<%= getRandomStr() %>"></script>

More info on cache-busting can be found here:

https://curtistimson.co.uk/post/front-end-dev/what-is-cache-busting/

edit included the newer across() syntax

Here's another tidyverse solution, using filter(across()) or previously filter_at. The advantage is that you can easily extend to more than one column.

Below also a solution with filter_all in order to find the string in any column, using diamonds as example, looking for the string "V"

library(tidyverse)

String in only one column

# for only one column... extendable to more than one creating a column list in `across` or `vars`!
mtcars %>% 
  rownames_to_column("type") %>% 
  filter(across(type, ~ !grepl('Toyota|Mazda', .))) %>%
  head()
#>                type  mpg cyl  disp  hp drat    wt  qsec vs am gear carb
#> 1        Datsun 710 22.8   4 108.0  93 3.85 2.320 18.61  1  1    4    1
#> 2    Hornet 4 Drive 21.4   6 258.0 110 3.08 3.215 19.44  1  0    3    1
#> 3 Hornet Sportabout 18.7   8 360.0 175 3.15 3.440 17.02  0  0    3    2
#> 4           Valiant 18.1   6 225.0 105 2.76 3.460 20.22  1  0    3    1
#> 5        Duster 360 14.3   8 360.0 245 3.21 3.570 15.84  0  0    3    4
#> 6         Merc 240D 24.4   4 146.7  62 3.69 3.190 20.00  1  0    4    2

The now superseded syntax for the same would be:

mtcars %>% 
  rownames_to_column("type") %>% 
  filter_at(.vars= vars(type), all_vars(!grepl('Toyota|Mazda',.))) 

String in all columns:

# remove all rows where any column contains 'V'
diamonds %>%
  filter(across(everything(), ~ !grepl('V', .))) %>%
  head
#> # A tibble: 6 x 10
#>   carat cut     color clarity depth table price     x     y     z
#>   <dbl> <ord>   <ord> <ord>   <dbl> <dbl> <int> <dbl> <dbl> <dbl>
#> 1  0.23 Ideal   E     SI2      61.5    55   326  3.95  3.98  2.43
#> 2  0.21 Premium E     SI1      59.8    61   326  3.89  3.84  2.31
#> 3  0.31 Good    J     SI2      63.3    58   335  4.34  4.35  2.75
#> 4  0.3  Good    J     SI1      64      55   339  4.25  4.28  2.73
#> 5  0.22 Premium F     SI1      60.4    61   342  3.88  3.84  2.33
#> 6  0.31 Ideal   J     SI2      62.2    54   344  4.35  4.37  2.71

The now superseded syntax for the same would be:

diamonds %>% 
  filter_all(all_vars(!grepl('V', .))) %>%
  head

I tried to find an across alternative for the following, but I didn't immediately come up with a good solution:

    #get all rows where any column contains 'V'
    diamonds %>%
    filter_all(any_vars(grepl('V',.))) %>%
      head
    #> # A tibble: 6 x 10
    #>   carat cut       color clarity depth table price     x     y     z
    #>   <dbl> <ord>     <ord> <ord>   <dbl> <dbl> <int> <dbl> <dbl> <dbl>
    #> 1 0.23  Good      E     VS1      56.9    65   327  4.05  4.07  2.31
    #> 2 0.290 Premium   I     VS2      62.4    58   334  4.2   4.23  2.63
    #> 3 0.24  Very Good J     VVS2     62.8    57   336  3.94  3.96  2.48
    #> 4 0.24  Very Good I     VVS1     62.3    57   336  3.95  3.98  2.47
    #> 5 0.26  Very Good H     SI1      61.9    55   337  4.07  4.11  2.53
    #> 6 0.22  Fair      E     VS2      65.1    61   337  3.87  3.78  2.49

Update: Thanks to user Petr Kajzar in this answer, here also an approach for the above:

diamonds %>%
   filter(rowSums(across(everything(), ~grepl("V", .x))) > 0)

In Version 4.0.2 slightly different Just in processResults and in result :

    processResults: function (data) {
        return {
            results: $.map(data.items, function (item) {
                return {
                    text: item.tag_value,
                    id: item.tag_id
                }
            })
        };
    }

You must add data.items in result. items is Json name :

{
  "items": [
    {"id": 1,"name": "Tetris","full_name": "s9xie/hed"},
    {"id": 2,"name": "Tetrisf","full_name": "s9xie/hed"}
  ]
}

Your strings are JSON formatted, so you will need to parse it into a object. For that you can use JSON.NET.

Here is an example on how to parse a JSON string into a dynamic object:

string source = "{\r\n   \"id\": \"100000280905615\", \r\n \"name\": \"Jerard Jones\",  \r\n   \"first_name\": \"Jerard\", \r\n   \"last_name\": \"Jones\", \r\n   \"link\": \"https://www.facebook.com/Jerard.Jones\", \r\n   \"username\": \"Jerard.Jones\", \r\n   \"gender\": \"female\", \r\n   \"locale\": \"en_US\"\r\n}";
dynamic data = JObject.Parse(source);
Console.WriteLine(data.id);
Console.WriteLine(data.first_name);
Console.WriteLine(data.last_name);
Console.WriteLine(data.gender);
Console.WriteLine(data.locale);

Happy coding!

Before you start make sure your have read and understood this note from Google! This tutorial makes using gtest easy, but may introduce nasty bugs.

1. Get the googletest framework

wget https://github.com/google/googletest/archive/release-1.8.0.tar.gz

Or get it by hand. I won't maintain this little How-to, so if you stumbled upon it and the links are outdated, feel free to edit it.

2. Unpack and build google test

tar xf release-1.8.0.tar.gz
cd googletest-release-1.8.0
cmake -DBUILD_SHARED_LIBS=ON .
make

3. "Install" the headers and libs on your system.

This step might differ from distro to distro, so make sure you copy the headers and libs in the correct directory. I accomplished this by checking where Debians former gtest libs were located. But I'm sure there are better ways to do this. Note: make install is dangerous and not supported

sudo cp -a googletest/include/gtest /usr/include
sudo cp -a googlemock/gtest/libgtest_main.so googlemock/gtest/libgtest.so /usr/lib/

4. Update the cache of the linker

... and check if the GNU Linker knows the libs

sudo ldconfig -v | grep gtest

If the output looks like this:

libgtest.so.0 -> libgtest.so.0.0.0
libgtest_main.so.0 -> libgtest_main.so.0.0.0

then everything is fine.

gTestframework is now ready to use. Just don't forget to link your project against the library by setting -lgtest as linker flag and optionally, if you did not write your own test mainroutine, the explicit -lgtest_main flag.

From here on you might want to go to Googles documentation, and the old docs about the framework to learn how it works. Happy coding!

Edit: This works for OS X too! See "How to properly setup googleTest on OS X"

String TitleCaseString(String s)
{
    if (s == null || s.Length == 0) return s;

    string[] splits = s.Split(' ');

    for (int i = 0; i < splits.Length; i++)
    {
        switch (splits[i].Length)
        {
            case 1:
                break;

            default:
                splits[i] = Char.ToUpper(splits[i][0]) + splits[i].Substring(1);
                break;
        }
    }

    return String.Join(" ", splits);
}

All the previous answers to this question are now out of date. Since at least May 2015, Apple requires you to provide square icons with no rounding:

Keep icon corners square. The system applies a mask that rounds icon corners automatically.

https://developer.apple.com/ios/human-interface-guidelines/graphics/app-icon/

Use:

System.Text.Encoding.ASCII.GetString(buf);

Do you remember to refresh the dataGridView?

datagridview.refresh();

With this

npm install --save core-js@^3

you now get the error

"core-js@<3 is no longer maintained and not recommended for usage due to the number of
issues. Please, upgrade your dependencies to the actual version of core-js@3"

so you might want to instead try

npm install --save core-js@3

if you're reading this post June 9 2020.

If you want to filter your own commits:

git log --author="<$(git config user.email)>"

Since you are using enumerate hence your i is actually the index of the key rather than the key itself.

So, you are getting 3 in the first column of the row 3 4even though there is no key 3.

enumerate iterates through a data structure(be it list or a dictionary) while also providing the current iteration number.

Hence, the columns here are the iteration number followed by the key in dictionary enum

Others Solutions have already shown how to iterate over key and value pair so I won't repeat the same in mine.

The "uni" in unistd stands for "UNIX" - you won't find it on a Windows system.

Most widely used, portable libraries should offer alternative builds or detect the platform and only try to use headers/functions that will be provided, so it's worth checking documentation to see if you've missed some build step - e.g. perhaps running "make" instead of loading a ".sln" Visual C++ solution file.

If you need to fix it yourself, remove the include and see which functions are actually needed, then try to find a Windows equivalent.

Example from http://www.cplusplus.com/reference/string/string/find_last_of/

// string::find_last_of
#include <iostream>
#include <string>
using namespace std;

void SplitFilename (const string& str)
{
  size_t found;
  cout << "Splitting: " << str << endl;
  found=str.find_last_of("/\\");
  cout << " folder: " << str.substr(0,found) << endl;
  cout << " file: " << str.substr(found+1) << endl;
}

int main ()
{
  string str1 ("/usr/bin/man");
  string str2 ("c:\\windows\\winhelp.exe");

  SplitFilename (str1);
  SplitFilename (str2);

  return 0;
}

Another way:

var main = App.Current.MainWindow as MainWindow;

Try the require_all gem:

1. http://github.com/jarmo/require_all
2. https://rubygems.org/gems/require_all

It lets you simply:

require_all 'path/to/directory'

You're using the ajax function incorrectly. Since it's synchronous it'll return the data inline like so:

var remote = $.ajax({
    type: "GET",
    url: remote_url,
    async: false
}).responseText;

Can be done in 2 steps

1. Clone the repository

   git clone <http url>
   

2. Checkout the branch you want

   git checkout $BranchName
   

Update Nov 2015:

Sometime in late 2015, the Google Developers Console interface was overhauled again. For the new interface:

1. Select your project from the toolbar.

2. Open the "Gallery" using hamburger menu icon on the left side of the toolbar and select 'API Manager'.

3. Click 'Credentials' in the left-hand navigation.

Alternatively, you can click 'Switch to old console' under the the three-dot menu (right side of the toolbar), then follow the instructions below.

For the NEW (edit: OLD) Google Developers Console:

You get your 'Developer key' (a.k.a. API key) on the same screen where you get your client ID/secret. (This is the 'Credentials' screen, which can be found under 'APIs & auth' in the left nav.)

Below your client ID keys, there is a section titled 'Public API access'. If there are no keys in this this section, click 'Create new Key'. Your developer key is the 'API key' specified here.

Functional Interface:

• Introduced in Java 8
• Interface that contains a "single abstract" method.

Example 1:

   interface CalcArea {   // --functional interface
        double calcArea(double rad);
    }           

Example 2:

interface CalcGeometry { // --functional interface
    double calcArea(double rad);
    default double calcPeri(double rad) {
        return 0.0;
    }
}       

Example 3:

interface CalcGeometry {  // -- not functional interface
    double calcArea(double rad);
    double calcPeri(double rad);
}   

Java8 annotation -- @FunctionalInterface

• Annotation check that interface contains only one abstract method. If not, raise error.
• Even though @FunctionalInterface missing, it is still functional interface (if having single abstract method). The annotation helps avoid mistakes.
• Functional interface may have additional static & default methods.
• e.g. Iterable<>, Comparable<>, Comparator<>.

Applications of Functional Interface:

• Method references
• Lambda Expression
• Constructor references

To learn functional interfaces, learn first default methods in interface, and after learning functional interface, it will be easy to you to understand method reference and lambda expression

You could use label based using .loc or index based using .iloc method to do column-slicing including column ranges:

In [50]: import pandas as pd

In [51]: import numpy as np

In [52]: df = pd.DataFrame(np.random.rand(4,4), columns = list('abcd'))

In [53]: df
Out[53]: 
          a         b         c         d
0  0.806811  0.187630  0.978159  0.317261
1  0.738792  0.862661  0.580592  0.010177
2  0.224633  0.342579  0.214512  0.375147
3  0.875262  0.151867  0.071244  0.893735

In [54]: df.loc[:, ["a", "b", "d"]] ### Selective columns based slicing
Out[54]: 
          a         b         d
0  0.806811  0.187630  0.317261
1  0.738792  0.862661  0.010177
2  0.224633  0.342579  0.375147
3  0.875262  0.151867  0.893735

In [55]: df.loc[:, "a":"c"] ### Selective label based column ranges slicing
Out[55]: 
          a         b         c
0  0.806811  0.187630  0.978159
1  0.738792  0.862661  0.580592
2  0.224633  0.342579  0.214512
3  0.875262  0.151867  0.071244

In [56]: df.iloc[:, 0:3] ### Selective index based column ranges slicing
Out[56]: 
          a         b         c
0  0.806811  0.187630  0.978159
1  0.738792  0.862661  0.580592
2  0.224633  0.342579  0.214512
3  0.875262  0.151867  0.071244

For final, it can be assigned different values at runtime when initialized. For example

class Test{
  public final int a;
}

Test t1  = new Test();
t1.a = 10;
Test t2  = new Test();
t2.a = 20; //fixed

Thus each instance has different value of field a.

For static final, all instances share the same value, and can't be altered after first initialized.

class TestStatic{
      public static final int a = 0;
}

TestStatic t1  = new TestStatic();
t1.a = 10; // ERROR, CAN'T BE ALTERED AFTER THE FIRST 
TestStatic t2  = new TestStatic();
t1.a = 20;   // ERROR, CAN'T BE ALTERED AFTER THE FIRST INITIALIZATION.

Check out Jquery Bootstrap:

http://jslegers.github.com/jquery-bootstrap/

This is equivalent to the path of the script:

%~dp0

This uses the batch parameter extension syntax. Parameter 0 is always the script itself.

If your script is stored at C:\example\script.bat, then %~dp0 evaluates to C:\example\.

ss64.com has more information about the parameter extension syntax. Here is the relevant excerpt:

You can get the value of any parameter using a % followed by it's numerical position on the command line.

[...]

When a parameter is used to supply a filename then the following extended syntax can be applied:

[...]

%~d1 Expand %1 to a Drive letter only - C:

[...]

%~p1 Expand %1 to a Path only e.g. \utils\ this includes a trailing \ which may be interpreted as an escape character by some commands.

[...]

The modifiers above can be combined:

%~dp1 Expand %1 to a drive letter and path only

[...]

You can get the pathname of the batch script itself with %0, parameter extensions can be applied to this so %~dp0 will return the Drive and Path to the batch script e.g. W:\scripts\

Here's how it should look like in order to return a simple Yes when it's checked.

<input type="checkbox" id="newsletter" name="newsletter" value="Yes" checked>
<label for="newsletter">i want to sign up for newsletter</label>

I also added the text as a label, it means you can click the text as well to check the box. Small but, personally I hate when sites make me aim my mouse at this tiny little check box.

When the form is submitted if the check box is checked $_POST['newsletter'] will equal Yes. Just how you are checking to see if $_POST['name'],$_POST['email'], and $_POST['tel'] are empty you could do the same.

Here is an example of how you would add this into your email on the php side:

Underneath your existing code:

$name = $_POST['name'];
$email_address = $_POST['email'];
$message = $_POST['tel'];

Add:

$newsletter = $_POST['newsletter'];
if ($newsletter != 'Yes') {
    $newsletter = 'No';
}

If the check box is checked it will add Yes in your email if it was not checked it will add No.

Adding to Gaby's post, my jdbc getTables() for Oracle 10g requires all caps to work:

"employee" -> "EMPLOYEE"

Otherwise I would get an exception:

java.sql.SqlExcepcion exhausted resultset

(even though "employee" is in the schema)

Generally event handlers should use e.currentTarget.value, e.g.:

onChange = (e: React.FormEvent<HTMLInputElement>) => {
    const newValue = e.currentTarget.value;
}

You can read why it so here (Revert "Make SyntheticEvent.target generic, not SyntheticEvent.currentTarget.").

UPD: As mentioned by @roger-gusmao ChangeEvent more suitable for typing form events.

onChange = (e: React.ChangeEvent<HTMLInputElement>)=> {
   const newValue = e.target.value;
}

Generic Syntax :

$git diff oldCommit..newCommit -- **FileName.xml > ~/diff.txt

for all files named "FileName.xml" anywhere in your repo.

Notice the space between "--" and "**"

Answer for your question:

$git checkout master
$git diff oldCommit..HEAD -- **pom.xml 
or
$git diff oldCommit..HEAD -- relative/path/to/pom.xml 

as always with git, you can use a tag/sha1/"HEAD^" to id a commit.

Tested with git 1.9.1 on Ubuntu.

You're able to get the current registry-url using docker info:

...
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Labels:
...

That's also the url you may use to run your self hosted-registry:

docker run -d -p 5000:5000 --name registry -e REGISTRY_PROXY_REMOTEURL=https://index.docker.io registry:2

Grep & use it right away:

$ echo $(docker info | grep -oP "(?<=Registry: ).*")
https://index.docker.io/v1/

The solution for the issue:

public class yourRecyclerViewAdapter extends RecyclerView.Adapter<yourRecyclerViewAdapter.yourViewHolder> {

private static CheckBox lastChecked = null;
private static int lastCheckedPos = 0;


public void onBindViewHolder(ViewHolder holder, final int position) {

    holder.mTextView.setText(fonts.get(position).getName());
    holder.checkBox.setChecked(fonts.get(position).isSelected());
    holder.checkBox.setTag(new Integer(position));

    //for default check in first item
    if(position == 0 && fonts.get(0).isSelected() && holder.checkBox.isChecked())
    {
       lastChecked = holder.checkBox;
       lastCheckedPos = 0;
    }

    holder.checkBox.setOnClickListener(new View.OnClickListener() 
    {
        @Override
        public void onClick(View v) 
        {
           CheckBox cb = (CheckBox)v;
           int clickedPos = ((Integer)cb.getTag()).intValue(); 

           if(cb.isChecked())
           {
              if(lastChecked != null)
              {
                  lastChecked.setChecked(false);
                  fonts.get(lastCheckedPos).setSelected(false);
              }                       

              lastChecked = cb;
              lastCheckedPos = clickedPos;
          }
          else
             lastChecked = null;

          fonts.get(clickedPos).setSelected(cb.isChecked);
       }
   });
}
}

Hope this help!

It really depends on what you want to do with that exception after you catch it. If you need to differentiate your exception then you have to create your custom Exception. Otherwise you could just throw new Exception("message goes here");

Using !important will override element.style via CSS like Change

color: #7D7D7D;

to

color: #7D7D7D !important;

That should do it.

I've solved it, it can be done executing:

netsh interface portproxy add v4tov4 listenport=4422 listenaddress=192.168.1.111 connectport=80 connectaddress=192.168.0.33

To remove forwarding:

netsh interface portproxy delete v4tov4 listenport=4422 listenaddress=192.168.1.111

Official docs

I discover very simple way to redirect Login Page When session end in MVC. I have already tested it and this works without problems.

In short, I catch session end in _Layout 1 minute before and make redirection.

I try to explain everything step by step.

If we want to session end 30 minute after and redirect to loginPage see this steps:

1. Change the web config like this (set 31 minute):

    <system.web>
       <sessionState timeout="31"></sessionState>
    </system.web>
   

2. Add this JavaScript in _Layout (when session end 1 minute before this code makes redirect, it makes count time after user last action, not first visit on site)

   <script>
       //session end 
       var sessionTimeoutWarning = @Session.Timeout- 1;
   
       var sTimeout = parseInt(sessionTimeoutWarning) * 60 * 1000;
       setTimeout('SessionEnd()', sTimeout);
   
       function SessionEnd() {
           window.location = "/Account/LogOff";
       }
   </script>
   

3. Here is my LogOff Action, which makes only LogOff and redirect LoginIn Page

   public ActionResult LogOff()
   {
       Session["User"] = null; //it's my session variable
       Session.Clear();
       Session.Abandon();
       FormsAuthentication.SignOut(); //you write this when you use FormsAuthentication
       return RedirectToAction("Login", "Account");
   } 
   

I hope this is a very useful code for you.

simple util function to calculate distance between two geopoints:

public static long getDistanceMeters(double lat1, double lng1, double lat2, double lng2) {

    double l1 = toRadians(lat1);
    double l2 = toRadians(lat2);
    double g1 = toRadians(lng1);
    double g2 = toRadians(lng2);

    double dist = acos(sin(l1) * sin(l2) + cos(l1) * cos(l2) * cos(g1 - g2));
    if(dist < 0) {
        dist = dist + Math.PI;
    }

    return Math.round(dist * 6378100);
}

I have already upvoted the @dasblinkenlight answer since the Median of Medians algorithm in fact solves this problem in O(n) time. I only want to add that this problem could be solved in O(n) time by using heaps also. Building a heap could be done in O(n) time by using the bottom-up. Take a look to the following article for a detailed explanation Heap sort

Supposing that your array has N elements, you have to build two heaps: A MaxHeap that contains the first N/2 elements (or (N/2)+1 if N is odd) and a MinHeap that contains the remaining elements. If N is odd then your median is the maximum element of MaxHeap (O(1) by getting the max). If N is even, then your median is (MaxHeap.max()+MinHeap.min())/2 this takes O(1) also. Thus, the real cost of the whole operation is the heaps building operation which is O(n).

BTW this MaxHeap/MinHeap algorithm works also when you don't know the number of the array elements beforehand (if you have to resolve the same problem for a stream of integers for e.g). You can see more details about how to resolve this problem in the following article Median Of integer streams

From php 4.0.6 , there is a function for the exact same thing

function mb_strimwidth can be used for your requirement

<?php
echo mb_strimwidth("Hello World", 0, 10, "...");
//Hello W...
?>

It does have more options though,here is the documentation for this mb_strimwidth

What about pymysql? It's pure Python, and I've used it on Windows with considerable success, bypassing the difficulties of compiling and installing mysql-python.

You are looking for the CASE statement

http://msdn.microsoft.com/en-us/library/ms181765.aspx

Example copied from MSDN:

USE AdventureWorks;
GO
SELECT   ProductNumber, Category =
      CASE ProductLine
         WHEN 'R' THEN 'Road'
         WHEN 'M' THEN 'Mountain'
         WHEN 'T' THEN 'Touring'
         WHEN 'S' THEN 'Other sale items'
         ELSE 'Not for sale'
      END,
   Name
FROM Production.Product
ORDER BY ProductNumber;
GO

I understand the OPs frustration, this usage of virtual is not for the templated abstraction that the defacto virtual modifier is effective for.

If any are still struggling with this, I would offer my view point, as I try to keep the solutions simple and the jargon to a minimum:

Entity Framework in a simple piece does utilize lazy loading, which is the equivalent of prepping something for future execution. That fits the 'virtual' modifier, but there is more to this.

In Entity Framework, using a virtual navigation property allows you to denote it as the equivalent of a nullable Foreign Key in SQL. You do not HAVE to eagerly join every keyed table when performing a query, but when you need the information -- it becomes demand-driven.

I also mentioned nullable because many navigation properties are not relevant at first. i.e. In a customer / Orders scenario, you do not have to wait until the moment an order is processed to create a customer. You can, but if you had a multi-stage process to achieve this, you might find the need to persist the customer data for later completion or for deployment to future orders. If all nav properties were implemented, you'd have to establish every Foreign Key and relational field on the save. That really just sets the data back into memory, which defeats the role of persistence.

So while it may seem cryptic in the actual execution at run time, I have found the best rule of thumb to use would be: if you are outputting data (reading into a View Model or Serializable Model) and need values before references, do not use virtual; If your scope is collecting data that may be incomplete or a need to search and not require every search parameter completed for a search, the code will make good use of reference, similar to using nullable value properties int? long?. Also, abstracting your business logic from your data collection until the need to inject it has many performance benefits, similar to instantiating an object and starting it at null. Entity Framework uses a lot of reflection and dynamics, which can degrade performance, and the need to have a flexible model that can scale to demand is critical to managing performance.

To me, that always made more sense than using overloaded tech jargon like proxies, delegates, handlers and such. Once you hit your third or fourth programming lang, it can get messy with these.

I setup my git to autorebase on a git checkout

# in my ~/.gitconfig file
[branch]
    autosetupmerge = always
    autosetuprebase = always

Otherwise, it automatically merges when you switch between branches, which I think is the worst possible choice as the default.

However, this has a side effect, when I switch to a branch and then git cherry-pick <commit-id> I end up in this weird state every single time it has a conflict.

I actually have to abort the rebase, but first I fix the conflict, git add /path/to/file the file (another very strange way to resolve the conflict in this case?!), then do a git commit -i /path/to/file. Now I can abort the rebase:

git checkout <other-branch>
git cherry-pick <commit-id>
...edit-conflict(s)...
git add path/to/file
git commit -i path/to/file
git rebase --abort
git commit .
git push --force origin <other-branch>

The second git commit . seems to come from the abort. I'll fix my answer if I find out that I should abort the rebase sooner.

The --force on the push is required if you skip other commits and both branches are not smooth (both are missing commits from the other).

Try to change android:label in AndroidManifest.xml and reinstall/rerun app:

<application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme">

If you have an object and wish to become JObject you can use:

JObject o = (JObject)JToken.FromObject(miObjetoEspecial);

like this :

Pocion pocionDeVida = new Pocion{
tipo = "vida",
duracion = 32,
};

JObject o = (JObject)JToken.FromObject(pocionDeVida);
Console.WriteLine(o.ToString());
// {"tipo": "vida", "duracion": 32,}

Not sure I understand the question correctly.

From what I gather, you want to be able to assign a value to Domain if it is null and also what to check if $args2 is supplied and according to the value, execute a certain code?

I changed the code to reassemble the assumptions made above.

Function DoStuff($computername, $arg2, $domain)
{
    if($domain -ne $null)
    {
        $domain = "Domain1"
    }

    if($arg2 -eq $null)
    {
    }
    else
    {
    }
}

DoStuff -computername "Test" -arg2 "" -domain "Domain2"
DoStuff -computername "Test" -arg2 "Test"  -domain ""
DoStuff -computername "Test" -domain "Domain2"
DoStuff -computername "Test" -arg2 "Domain2"

Did that help?

To achieve this there are basically two methods which I frequently use:

1. Using the cursor escape character (\c) with echo -e

Example :

for i in {0..10..2}; do
  echo -e "$i \c"              
done
# 0 2 4 6 8 10

• -e flag enables the Escape characters in the string.
• \c brings the Cursor back to the current line.

OR

2. Using the printf command

Example:

for ((i = 0; i < 5; ++i)); do
  printf "$i "
done
# 0 1 2 3 4

I think you can use db.collection.distinct(fields,query)

You will be able to get the distinct values in your case for NetworkID.

It should be something like this :

Db.collection.distinct('NetworkID')

git reset is what you want, but I'm going to add a couple extra things you might find useful that the other answers didn't mention.

git reset --hard HEAD resets your changes back to the last commit that your local repo has tracked. If you made a commit, did not push it to GitHub, and want to throw that away too, see @absiddiqueLive's answer.

git clean -df will discard any new files or directories that you may have added, in case you want to throw those away. If you haven't added any, you don't have to run this.

git pull (or if you are using git shell with the GitHub client) git sync will get the new changes from GitHub.

Edit from way in the future: I updated my git shell the other week and noticed that the git sync command is no longer defined by default. For the record, typing git sync was equivalent to git pull && git push in bash. I find it still helpful so it is in my bashrc.

Use the SqlDataAdapter, this would simplify everything.

//Your code to this point
DataTable dt = new DataTable();

using(var cmd = new SqlCommand("usp_GetABCD", sqlcon))
{
  using(var da = new SqlDataAdapter(cmd))
  {
      da.Fill(dt):
  }
}

and your DataTable will have the information you are looking for, so long as your stored proceedure returns a data set (cursor).

Here is part of my program related to plotting confidence interval.

1. Generate the test data

ads = 1
require(stats); require(graphics)
library(splines)
x_raw <- seq(1,10,0.1)
y <- cos(x_raw)+rnorm(len_data,0,0.1)
y[30] <- 1.4 # outlier point
len_data = length(x_raw)
N <- len_data
summary(fm1 <- lm(y~bs(x_raw, df=5), model = TRUE, x =T, y = T))
ht <-seq(1,10,length.out = len_data)
plot(x = x_raw, y = y,type = 'p')
y_e <- predict(fm1, data.frame(height = ht))
lines(x= ht, y = y_e)

Result

2. Fitting the raw data using B-spline smoother method

sigma_e <- sqrt(sum((y-y_e)^2)/N)
print(sigma_e)
H<-fm1$x
A <-solve(t(H) %*% H)
y_e_minus <- rep(0,N)
y_e_plus <- rep(0,N)
y_e_minus[N]
for (i in 1:N)
{
    tmp <-t(matrix(H[i,])) %*% A %*% matrix(H[i,])
    tmp <- 1.96*sqrt(tmp)
    y_e_minus[i] <- y_e[i] - tmp
    y_e_plus[i] <- y_e[i] + tmp
}
plot(x = x_raw, y = y,type = 'p')
polygon(c(ht,rev(ht)),c(y_e_minus,rev(y_e_plus)),col = rgb(1, 0, 0,0.5), border = NA)
#plot(x = x_raw, y = y,type = 'p')
lines(x= ht, y = y_e_plus, lty = 'dashed', col = 'red')
lines(x= ht, y = y_e)
lines(x= ht, y = y_e_minus, lty = 'dashed', col = 'red')

Result

for k, v in mydict.iteritems():
    if v is None:
        mydict[k] = ''

In a more general case, e.g. if you were adding or removing keys, it might not be safe to change the structure of the container you're looping on -- so using items to loop on an independent list copy thereof might be prudent -- but assigning a different value at a given existing index does not incur any problem, so, in Python 2.any, it's better to use iteritems.

In Python3 however the code gives AttributeError: 'dict' object has no attribute 'iteritems' error. Use items() instead of iteritems() here.

Refer to this post.

From the docs:

The SimpleHTTPServer module has been merged into http.server in Python 3.0. The 2to3 tool will automatically adapt imports when converting your sources to 3.0.

So, your command is python -m http.server, or depending on your installation, it can be:

python3 -m http.server

I found a simple solution, try this:

var Ocasiao = "";    
$('#ctl00_rdlOcasioesMarcas input').each(function() { if (this.checked) { Ocasiao = this.value } });

PK - Primary Key

NN - Not Null

BIN - Binary (stores data as binary strings. There is no character set so sorting and comparison is based on the numeric values of the bytes in the values.)

UN - Unsigned (non-negative numbers only. so if the range is -500 to 500, instead its 0 - 1000, the range is the same but it starts at 0)

UQ - Create/remove Unique Key

ZF - Zero-Filled (if the length is 5 like INT(5) then every field is filled with 0’s to the 5th digit. 12 = 00012, 400 = 00400, etc. )

AI - Auto Increment

G - Generated column. i.e. value generated by a formula based on the other columns

You can scale the image with pygame.transform.scale:

import pygame
picture = pygame.image.load(filename)
picture = pygame.transform.scale(picture, (1280, 720))

You can then get the bounding rectangle of picture with

rect = picture.get_rect()

and move the picture with

rect = rect.move((x, y))
screen.blit(picture, rect)

where screen was set with something like

screen = pygame.display.set_mode((1600, 900))

To allow your widgets to adjust to various screen sizes, you could make the display resizable:

import os
import pygame
from pygame.locals import *

pygame.init()
screen = pygame.display.set_mode((500, 500), HWSURFACE | DOUBLEBUF | RESIZABLE)
pic = pygame.image.load("image.png")
screen.blit(pygame.transform.scale(pic, (500, 500)), (0, 0))
pygame.display.flip()
while True:
    pygame.event.pump()
    event = pygame.event.wait()
    if event.type == QUIT:
        pygame.display.quit()
    elif event.type == VIDEORESIZE:
        screen = pygame.display.set_mode(
            event.dict['size'], HWSURFACE | DOUBLEBUF | RESIZABLE)
        screen.blit(pygame.transform.scale(pic, event.dict['size']), (0, 0))
        pygame.display.flip()

I would recommend you to use worksheet's index instead of using worksheet's name, in this way you can also loop through sheets "dynamically"

for i=1 to thisworkbook.sheets.count
 sheets(i).activate
'You can add more code 
with activesheet
 'Code...
end with
next i

It will also, improve performance.

    var ele = document.getElementById('newSkill')
    ele.onchange = function(){
            var length = ele.children.length
            for(var i=0; i<length;i++){
                if(ele.children[i].selected){alert(ele.children[i].text)};              
            }
    }   

Note: The last line is mandatory.

If we didn't specify Access-Control-Expose-Headers, we will not get File Name in UI.

FileInfo file = new FileInfo(FILEPATH);

HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK);
response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment")
{
    FileName = file.Name
};
response.Content.Headers.Add("Access-Control-Expose-Headers", "Content-Disposition");

I had the same issue.

Turned out my timeout was set too low. I changed it to 30ms thinking it was 30sec. I set it back to 0 and it started working again.

Using Ref forwarding you can pass the ref from parent to further down to a child.

const FancyButton = React.forwardRef((props, ref) => (
  <button ref={ref} className="FancyButton">
    {props.children}
  </button>
));

// You can now get a ref directly to the DOM button:
const ref = React.createRef();
<FancyButton ref={ref}>Click me!</FancyButton>;

1. Create a React ref by calling React.createRef and assign it to a ref variable.
2. Pass your ref down to by specifying it as a JSX attribute.
3. React passes the ref to the (props, ref) => ... function inside forwardRef as a second argument.
4. Forward this ref argument down to by specifying it as a JSX attribute.
5. When the ref is attached, ref.current will point to the DOM node.

Note The second ref argument only exists when you define a component with React.forwardRef call. Regular functional or class components don’t receive the ref argument, and ref is not available in props either.

Ref forwarding is not limited to DOM components. You can forward refs to class component instances, too.

Reference: React Documentation.

For iOS 7 & above:

• shift+command+H twice to simulate the double tap of home button
• swipe your app's screenshot upward to close it

You'll see screenshots representing the apps suspended on your device - those screenshots respond to touch events. Swiping is the gesture you'll make to "fling" the screenshot off of the screen. Note that on machines where your mouse is intended to represent your finger, you'll click and swipe as if it is your finger tapping and making the gesture.

I have found this helpful, but ran into some errors when adding it to a "Content=..." tag in XAML.

I had multiple lines in the content, and later found out that the content kept white spaces even though I didn't specify that. so to get around that and having it "ignore" the whitespace, I implemented such as this.

<ToolTip Width="200" Style="{StaticResource ToolTip}" 
         Content="'Text Line 1' 
                   &#x0a;&#x0d;'Text Line 2' 
                   &#x0a;&#x0d;'Text Line 3'"/>

hope this helps someone else.

(The output is has the three text lines with an empty line in between each.)

This is a step I use with ubuntu. It will allow you to insert more than 45 characters from your input but MySQL will cut your text to 45 characters to insert into the database.

1. Run command

   sudo nano /etc/mysql/my.cnf

2. Then paste this code

   [mysqld] sql-mode="NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"

3. restart MySQL

   sudo service mysql restart;

<roleManager
  enabled="true"
  cacheRolesInCookie="false"
  cookieName=".ASPXROLES"
  cookieTimeout="30"
  cookiePath="/"
  cookieRequireSSL="false"
  cookieSlidingExpiration="true"
  cookieProtection="All"
  defaultProvider="AspNetSqlRoleProvider"
  createPersistentCookie="false"
  maxCachedResults="25">
  <providers>
    <clear />
    <add
       connectionStringName="MembershipConnection"
       applicationName="Mvc3"
       name="AspNetSqlRoleProvider"
       type="System.Web.Security.SqlRoleProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
    <add
       applicationName="Mvc3"
       name="AspNetWindowsTokenRoleProvider"
       type="System.Web.Security.WindowsTokenRoleProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
  </providers>
</roleManager>

To clarify an already posted solution due to questions in the comments

import numpy

array = numpy.array([49, 51, 53, 56])
array = array - 13

will output:

array([36, 38, 40, 43])

Although Reed Copsey and Marc Gravell already described about IQueryable (and also IEnumerable) enough,mI want to add little more here by providing a small example on IQueryable and IEnumerable as many users asked for it

Example: I have created two table in database

   CREATE TABLE [dbo].[Employee]([PersonId] [int] NOT NULL PRIMARY KEY,[Gender] [nchar](1) NOT NULL)
   CREATE TABLE [dbo].[Person]([PersonId] [int] NOT NULL PRIMARY KEY,[FirstName] [nvarchar](50) NOT NULL,[LastName] [nvarchar](50) NOT NULL)

The Primary key(PersonId) of table Employee is also a forgein key(personid) of table Person

Next i added ado.net entity model in my application and create below service class on that

public class SomeServiceClass
{   
    public IQueryable<Employee> GetEmployeeAndPersonDetailIQueryable(IEnumerable<int> employeesToCollect)
    {
        DemoIQueryableEntities db = new DemoIQueryableEntities();
        var allDetails = from Employee e in db.Employees
                         join Person p in db.People on e.PersonId equals p.PersonId
                         where employeesToCollect.Contains(e.PersonId)
                         select e;
        return allDetails;
    }

    public IEnumerable<Employee> GetEmployeeAndPersonDetailIEnumerable(IEnumerable<int> employeesToCollect)
    {
        DemoIQueryableEntities db = new DemoIQueryableEntities();
        var allDetails = from Employee e in db.Employees
                         join Person p in db.People on e.PersonId equals p.PersonId
                         where employeesToCollect.Contains(e.PersonId)
                         select e;
        return allDetails;
    }
}

they contains same linq. It called in program.cs as defined below

class Program
{
    static void Main(string[] args)
    {
        SomeServiceClass s= new SomeServiceClass(); 

        var employeesToCollect= new []{0,1,2,3};

        //IQueryable execution part
        var IQueryableList = s.GetEmployeeAndPersonDetailIQueryable(employeesToCollect).Where(i => i.Gender=="M");            
        foreach (var emp in IQueryableList)
        {
            System.Console.WriteLine("ID:{0}, EName:{1},Gender:{2}", emp.PersonId, emp.Person.FirstName, emp.Gender);
        }
        System.Console.WriteLine("IQueryable contain {0} row in result set", IQueryableList.Count());

        //IEnumerable execution part
        var IEnumerableList = s.GetEmployeeAndPersonDetailIEnumerable(employeesToCollect).Where(i => i.Gender == "M");
        foreach (var emp in IEnumerableList)
        {
           System.Console.WriteLine("ID:{0}, EName:{1},Gender:{2}", emp.PersonId, emp.Person.FirstName, emp.Gender);
        }
        System.Console.WriteLine("IEnumerable contain {0} row in result set", IEnumerableList.Count());

        Console.ReadKey();
    }
}

The output is same for both obviously

ID:1, EName:Ken,Gender:M  
ID:3, EName:Roberto,Gender:M  
IQueryable contain 2 row in result set  
ID:1, EName:Ken,Gender:M  
ID:3, EName:Roberto,Gender:M  
IEnumerable contain 2 row in result set

So the question is what/where is the difference? It does not seem to have any difference right? Really!!

Let's have a look on sql queries generated and executed by entity framwork 5 during these period

IQueryable execution part

--IQueryableQuery1 
SELECT 
[Extent1].[PersonId] AS [PersonId], 
[Extent1].[Gender] AS [Gender]
FROM [dbo].[Employee] AS [Extent1]
WHERE ([Extent1].[PersonId] IN (0,1,2,3)) AND (N'M' = [Extent1].[Gender])

--IQueryableQuery2
SELECT 
[GroupBy1].[A1] AS [C1]
FROM ( SELECT 
    COUNT(1) AS [A1]
    FROM [dbo].[Employee] AS [Extent1]
    WHERE ([Extent1].[PersonId] IN (0,1,2,3)) AND (N'M' = [Extent1].[Gender])
)  AS [GroupBy1]

IEnumerable execution part

--IEnumerableQuery1
SELECT 
[Extent1].[PersonId] AS [PersonId], 
[Extent1].[Gender] AS [Gender]
FROM [dbo].[Employee] AS [Extent1]
WHERE [Extent1].[PersonId] IN (0,1,2,3)

--IEnumerableQuery2
SELECT 
[Extent1].[PersonId] AS [PersonId], 
[Extent1].[Gender] AS [Gender]
FROM [dbo].[Employee] AS [Extent1]
WHERE [Extent1].[PersonId] IN (0,1,2,3)

Common script for both execution part

/* these two query will execute for both IQueryable or IEnumerable to get details from Person table
   Ignore these two queries here because it has nothing to do with IQueryable vs IEnumerable
--ICommonQuery1 
exec sp_executesql N'SELECT 
[Extent1].[PersonId] AS [PersonId], 
[Extent1].[FirstName] AS [FirstName], 
[Extent1].[LastName] AS [LastName]
FROM [dbo].[Person] AS [Extent1]
WHERE [Extent1].[PersonId] = @EntityKeyValue1',N'@EntityKeyValue1 int',@EntityKeyValue1=1

--ICommonQuery2
exec sp_executesql N'SELECT 
[Extent1].[PersonId] AS [PersonId], 
[Extent1].[FirstName] AS [FirstName], 
[Extent1].[LastName] AS [LastName]
FROM [dbo].[Person] AS [Extent1]
WHERE [Extent1].[PersonId] = @EntityKeyValue1',N'@EntityKeyValue1 int',@EntityKeyValue1=3
*/

So you have few questions now, let me guess those and try to answer them

Why are different scripts generated for same result?

Lets find out some points here,

all queries has one common part

WHERE [Extent1].[PersonId] IN (0,1,2,3)

why? Because both function IQueryable<Employee> GetEmployeeAndPersonDetailIQueryable and IEnumerable<Employee> GetEmployeeAndPersonDetailIEnumerable of SomeServiceClass contains one common line in linq queries

where employeesToCollect.Contains(e.PersonId)

Than why is the AND (N'M' = [Extent1].[Gender]) part is missing in IEnumerable execution part, while in both function calling we used Where(i => i.Gender == "M") inprogram.cs`

Now we are in the point where difference came between IQueryable and IEnumerable

What entity framwork does when an IQueryable method called, it tooks linq statement written inside the method and try to find out if more linq expressions are defined on the resultset, it then gathers all linq queries defined until the result need to fetch and constructs more appropriate sql query to execute.

It provide a lots of benefits like,

• only those rows populated by sql server which could be valid by the whole linq query execution
• helps sql server performance by not selecting unnecessary rows
• network cost get reduce

like here in example sql server returned to application only two rows after IQueryable execution` but returned THREE rows for IEnumerable query why?

In case of IEnumerable method, entity framework took linq statement written inside the method and constructs sql query when result need to fetch. it does not include rest linq part to constructs the sql query. Like here no filtering is done in sql server on column gender.

But the outputs are same? Because 'IEnumerable filters the result further in application level after retrieving result from sql server

SO, what should someone choose? I personally prefer to define function result as IQueryable<T> because there are lots of benefit it has over IEnumerable like, you could join two or more IQueryable functions, which generate more specific script to sql server.

Here in example you can see an IQueryable Query(IQueryableQuery2) generates a more specific script than IEnumerable query(IEnumerableQuery2) which is much more acceptable in my point of view.

Here's a vote for star imports. An import statement is intended to import a package, not a class. It is much cleaner to import entire packages; the issues identified here (e.g. java.sql.Date vs java.util.Date) are easily remedied by other means, not really addressed by specific imports and certainly do not justify insanely pedantic imports on all classes. There is nothing more disconcerting than opening a source file and having to page through 100 import statements.

Doing specific imports makes refactoring more difficult; if you remove/rename a class, you need to remove all of its specific imports. If you switch an implementation to a different class in the same package, you have to go fix the imports. While these extra steps can be automated, they are really productivity hits for no real gain.

If Eclipse didn't do specific class imports by default, everyone would still be doing star imports. I'm sorry, but there's really no rational justification for doing specific imports.

Here's how to deal with class conflicts:

import java.sql.*;
import java.util.*;
import java.sql.Date;

From the man git-stash page:

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

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

To list the stashed modifications

git stash list

To show files changed in the last stash

git stash show

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

git stash show -p

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

git stash show -p stash@{1}

I've built systems before that use the following:

1. ERROR - means something is seriously wrong and that particular thread/process/sequence can't carry on. Some user/admin intervention is required
2. WARNING - something is not right, but the process can carry on as before (e.g. one job in a set of 100 has failed, but the remainder can be processed)

In the systems I've built admins were under instruction to react to ERRORs. On the other hand we would watch for WARNINGS and determine for each case whether any system changes, reconfigurations etc. were required.

Normally, I just want to know if the object is nil or not.

So i use this function that just returns true when the object entered is valid and false when its not.

func isNotNil(someObject: Any?) -> Bool {
        if someObject is String {
            if (someObject as? String) != nil {
                return true
            }else {
                return false
            }
        }else if someObject is Array<Any> {
            if (someObject as? Array<Any>) != nil {
                return true
            }else {
                return false
            }
        }else if someObject is Dictionary<AnyHashable, Any> {
            if (someObject as? Dictionary<String, Any>) != nil {
                return true
            }else {
                return false
            }
        }else if someObject is Data {
            if (someObject as? Data) != nil {
                return true
            }else {
                return false
            }
        }else if someObject is NSNumber {
            if (someObject as? NSNumber) != nil{
                return true
            }else {
                return false
            }
        }else if someObject is UIImage {
            if (someObject as? UIImage) != nil {
                return true
            }else {
                return false
            }
        }
        return false
 }

I modified Tim Stone's solution even further. This allows the cookie to be in 2 states, 1 for mobile and 0 for full. When the mobile cookie is set to 0 even a mobile browser will go to the full site.

Here is the code:

<IfModule mod_rewrite.c>
    RewriteBase /
    RewriteEngine On

    # Check if mobile=1 is set and set cookie 'mobile' equal to 1
    RewriteCond %{QUERY_STRING} (^|&)mobile=1(&|$)
    RewriteRule ^ - [CO=mobile:1:%{HTTP_HOST}]

    # Check if mobile=0 is set and set cookie 'mobile' equal to 0
    RewriteCond %{QUERY_STRING} (^|&)mobile=0(&|$)
    RewriteRule ^ - [CO=mobile:0:%{HTTP_HOST}]

    # cookie can't be set and read in the same request so check
    RewriteCond %{QUERY_STRING} (^|&)mobile=0(&|$)
    RewriteRule ^ - [S=1]

    # Check if this looks like a mobile device
    RewriteCond %{HTTP:x-wap-profile} !^$ [OR]
    RewriteCond %{HTTP_USER_AGENT} "android|blackberry|ipad|iphone|ipod|iemobile|opera mobile|palmos|webos|googlebot-mobile" [NC,OR]
    RewriteCond %{HTTP:Profile}       !^$

    # Check if we're not already on the mobile site
    RewriteCond %{HTTP_HOST}          !^m\.
    # Check to make sure we haven't set the cookie before
    RewriteCond %{HTTP:Cookie}        !\mobile=0(;|$)
    # Now redirect to the mobile site
    RewriteRule ^ http://m.example.com%{REQUEST_URI} [R,L]
</IfModule>

Component code:

import { Component } from "@angular/core";

@Component({
  templateUrl:"home.html"
})
export class HomePage {

  public items: Array<string>;

  constructor() {
    this.items = ["item1", "item2", "item3"]
  }

  public open(event, item) {
    alert('Open ' + item);
  }

}

View:

<ion-header>
  <ion-navbar primary>
    <ion-title>
      <span>My App</span>
    </ion-title>
  </ion-navbar>
</ion-header>

<ion-content>
  <ion-list>
    <ion-item *ngFor="let item of items" (click)="open($event, item)">
      {{ item }}
    </ion-item>
  </ion-list>
</ion-content>

As you can see in the code, I'm declaring the click handler like this (click)="open($event, item)" and sending both the event and the item (declared in the *ngFor) to the open() method (declared in the component code).

If you just want to show the item and you don't need to get info from the event, you can just do (click)="open(item)" and modify the open method like this public open(item) { ... }

(function( $ ) {
  $.fn.keepRatio = function(which) {
      var $this = $(this);
      var w = $this.width();
      var h = $this.height();
      var ratio = w/h;
      $(window).resize(function() {
          switch(which) {
              case 'width':
                  var nh = $this.width() / ratio;
                  $this.css('height', nh + 'px');
                  break;
              case 'height':
                  var nw = $this.height() * ratio;
                  $this.css('width', nw + 'px');
                  break;
          }
      });

  }
})( jQuery );      

$(document).ready(function(){
    $('#foo').keepRatio('width');
});

Working example: http://jsfiddle.net/QtftX/1/

The best looking way I've found to go through a cursor is the following:

Cursor cursor;
... //fill the cursor here

for (cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext()) {
    // do what you need with the cursor here
}

Don't forget to close the cursor afterwards

EDIT: The given solution is great if you ever need to iterate a cursor that you are not responsible of. A good example would be, if you are taking a cursor as argument in a method, and you need to scan the cursor for a given value, without having to worry about the cursor's current position.

If you are sending HTML email then use <BR> (or <BR />, or </BR>) as stated.
If you are sending a plain text email then use %0D%0A
\r = %0D (Ctrl+M = carriage return)
\n = %0A (Ctrl+A = line feed)

If you have an email link in your email,
EG

<A HREF="mailto?To=...&Body=Line 1%250D%250ALine 2">Send email</A>

Then use %250D%250A

%25 = %

Use SimpleDateFormat to format dates and times into a human-readable string, with respect to the users locale.

Small example to get the current day of the week (e.g. "Monday"):

SimpleDateFormat sdf = new SimpleDateFormat("EEEE");
Date d = new Date();
String dayOfTheWeek = sdf.format(d);

In case if one is using nginx proxy as a docker container (e.g. jwilder/nginx-proxy), there is the following way to configure client_max_body_size (or other properties):

1. Create a custom config file e.g. /etc/nginx/proxy.conf with a right value for this property
2. When running a container, add it as a volume e.g. -v /etc/nginx/proxy.conf:/etc/nginx/conf.d/my_proxy.conf:ro

Personally found this way rather convenient as there's no need to build a custom container to change configs. I'm not affiliated with jwilder/nginx-proxy, was just using it in my project, and the way described above helped me. Hope it helps someone else, too.

This worked for me. Repeatedly calls a function updating the graph every time.

import matplotlib.pyplot as plt
import matplotlib.animation as anim

def plot_cont(fun, xmax):
    y = []
    fig = plt.figure()
    ax = fig.add_subplot(1,1,1)

    def update(i):
        yi = fun()
        y.append(yi)
        x = range(len(y))
        ax.clear()
        ax.plot(x, y)
        print i, ': ', yi

    a = anim.FuncAnimation(fig, update, frames=xmax, repeat=False)
    plt.show()

"fun" is a function that returns an integer. FuncAnimation will repeatedly call "update", it will do that "xmax" times.

It's the number of bytes of data in the body of the request or response. The body is the part that comes after the blank line below the headers.

I have an extension method for Uri that:

• Accepts anonymous objects: uri.WithQuery(new { name = "value" })
• Accepts collections of string/string pairs (e.g. Dictionary`2).
• Accepts collections of string/object pairs (e.g. RouteValueDictionary).
• Accepts NameValueCollections.
• Sorts the query values by key so the same values produce equal URIs.
• Supports multiple values per key, preserving their original order.

The documented version can be found here.

The extension:

public static Uri WithQuery(this Uri uri, object values)
{
    if (uri == null)
        throw new ArgumentNullException(nameof(uri));

    if (values != null)
    {
        var query = string.Join(
            "&", from p in ParseQueryValues(values)
                 where !string.IsNullOrWhiteSpace(p.Key)
                 let k = HttpUtility.UrlEncode(p.Key.Trim())
                 let v = HttpUtility.UrlEncode(p.Value)
                 orderby k
                 select string.IsNullOrEmpty(v) ? k : $"{k}={v}");

        if (query.Length != 0 || uri.Query.Length != 0)
            uri = new UriBuilder(uri) { Query = query }.Uri;
    }

    return uri;
}

The query parser:

private static IEnumerable<KeyValuePair<string, string>> ParseQueryValues(object values)
{
    // Check if a name/value collection.
    var nvc = values as NameValueCollection;
    if (nvc != null)
        return from key in nvc.AllKeys
               from val in nvc.GetValues(key)
               select new KeyValuePair<string, string>(key, val);

    // Check if a string/string dictionary.
    var ssd = values as IEnumerable<KeyValuePair<string, string>>;
    if (ssd != null)
        return ssd;

    // Check if a string/object dictionary.
    var sod = values as IEnumerable<KeyValuePair<string, object>>;
    if (sod == null)
    {
        // Check if a non-generic dictionary.
        var ngd = values as IDictionary;
        if (ngd != null)
            sod = ngd.Cast<dynamic>().ToDictionary<dynamic, string, object>(
                p => p.Key.ToString(), p => p.Value as object);

        // Convert object properties to dictionary.
        if (sod == null)
            sod = new RouteValueDictionary(values);
    }

    // Normalize and return the values.
    return from pair in sod
           from val in pair.Value as IEnumerable<string>
            ?? new[] { pair.Value?.ToString() }
           select new KeyValuePair<string, string>(pair.Key, val);
}

Here are the tests:

var uri = new Uri("https://stackoverflow.com/yo?oldKey=oldValue");

// Test with a string/string dictionary.
var q = uri.WithQuery(new Dictionary<string, string>
{
    ["k1"] = string.Empty,
    ["k2"] = null,
    ["k3"] = "v3"
});

Debug.Assert(q == new Uri(
    "https://stackoverflow.com/yo?k1&k2&k3=v3"));

// Test with a string/object dictionary.
q = uri.WithQuery(new Dictionary<string, object>
{
    ["k1"] = "v1",
    ["k2"] = new[] { "v2a", "v2b" },
    ["k3"] = null
});

Debug.Assert(q == new Uri(
    "https://stackoverflow.com/yo?k1=v1&k2=v2a&k2=v2b&k3"));

// Test with a name/value collection.
var nvc = new NameValueCollection()
{
    ["k1"] = string.Empty,
    ["k2"] = "v2a"
};

nvc.Add("k2", "v2b");

q = uri.WithQuery(nvc);
Debug.Assert(q == new Uri(
    "https://stackoverflow.com/yo?k1&k2=v2a&k2=v2b"));

// Test with any dictionary.
q = uri.WithQuery(new Dictionary<int, HashSet<string>>
{
    [1] = new HashSet<string> { "v1" },
    [2] = new HashSet<string> { "v2a", "v2b" },
    [3] = null
});

Debug.Assert(q == new Uri(
    "https://stackoverflow.com/yo?1=v1&2=v2a&2=v2b&3"));

// Test with an anonymous object.
q = uri.WithQuery(new
{
    k1 = "v1",
    k2 = new[] { "v2a", "v2b" },
    k3 = new List<string> { "v3" },
    k4 = true,
    k5 = null as Queue<string>
});

Debug.Assert(q == new Uri(
    "https://stackoverflow.com/yo?k1=v1&k2=v2a&k2=v2b&k3=v3&k4=True&k5"));

// Keep existing query using a name/value collection.
nvc = HttpUtility.ParseQueryString(uri.Query);
nvc.Add("newKey", "newValue");

q = uri.WithQuery(nvc);
Debug.Assert(q == new Uri(
    "https://stackoverflow.com/yo?newKey=newValue&oldKey=oldValue"));

// Merge two query objects using the RouteValueDictionary.
var an1 = new { k1 = "v1" };
var an2 = new { k2 = "v2" };

q = uri.WithQuery(
    new RouteValueDictionary(an1).Concat(
        new RouteValueDictionary(an2)));

Debug.Assert(q == new Uri(
    "https://stackoverflow.com/yo?k1=v1&k2=v2"));

Try:

=ArrayFormula(QUERY(A:A&{"",""};"select Col1, count(Col2) where Col1 != '' group by Col1 label count(Col2) 'Count'";1))

22/07/2014 Some time in the last month, Sheets has started supporting more flexible concatenation of arrays, using an embedded array. So the solution may be shortened slightly to:

=QUERY({A:A,A:A},"select Col1, count(Col2) where Col1 != '' group by Col1 label count(Col2) 'Count'",1)

jQuery Scroll Plugin

since this is a question tagged with jquery i have to say, that this library has a very nice plugin for smooth scrolling, you can find it here: http://plugins.jquery.com/scrollTo/

Excerpts from Documentation:

$('div.pane').scrollTo(...);//all divs w/class pane

or

$.scrollTo(...);//the plugin will take care of this

Custom jQuery function for scrolling

you can use a very lightweight approach by defining your custom scroll jquery function

$.fn.scrollView = function () {
    return this.each(function () {
        $('html, body').animate({
            scrollTop: $(this).offset().top
        }, 1000);
    });
}

and use it like:

$('#your-div').scrollView();

Scroll to a page coordinates

Animate html and body elements with scrollTop or scrollLeft attributes

$('html, body').animate({
    scrollTop: 0,
    scrollLeft: 300
}, 1000);

Plain javascript

scrolling with window.scroll

window.scroll(horizontalOffset, verticalOffset);

only to sum up, use the window.location.hash to jump to element with ID

window.location.hash = '#your-page-element';

Directly in HTML (accesibility enhancements)

<a href="#your-page-element">Jump to ID</a>

<div id="your-page-element">
    will jump here
</div>

import os
def file_path(relative_path):
    dir = os.path.dirname(os.path.abspath(__file__))
    split_path = relative_path.split("/")
    new_path = os.path.join(dir, *split_path)
    return new_path

with open(file_path("2091/data.txt"), "w") as f:
    f.write("Powerful you have become.")

In case you want to work with the original MNIST files, here is how you can deserialize them.

If you haven't downloaded the files yet, do that first by running the following in the terminal:

wget http://yann.lecun.com/exdb/mnist/train-images-idx3-ubyte.gz
wget http://yann.lecun.com/exdb/mnist/train-labels-idx1-ubyte.gz
wget http://yann.lecun.com/exdb/mnist/t10k-images-idx3-ubyte.gz
wget http://yann.lecun.com/exdb/mnist/t10k-labels-idx1-ubyte.gz

Then save the following as deserialize.py and run it.

import numpy as np
import gzip

IMG_DIM = 28

def decode_image_file(fname):
    result = []
    n_bytes_per_img = IMG_DIM*IMG_DIM

    with gzip.open(fname, 'rb') as f:
        bytes_ = f.read()
        data = bytes_[16:]

        if len(data) % n_bytes_per_img != 0:
            raise Exception('Something wrong with the file')

        result = np.frombuffer(data, dtype=np.uint8).reshape(
            len(bytes_)//n_bytes_per_img, n_bytes_per_img)

    return result

def decode_label_file(fname):
    result = []

    with gzip.open(fname, 'rb') as f:
        bytes_ = f.read()
        data = bytes_[8:]

        result = np.frombuffer(data, dtype=np.uint8)

    return result

train_images = decode_image_file('train-images-idx3-ubyte.gz')
train_labels = decode_label_file('train-labels-idx1-ubyte.gz')

test_images = decode_image_file('t10k-images-idx3-ubyte.gz')
test_labels = decode_label_file('t10k-labels-idx1-ubyte.gz')

The script doesn't normalize the pixel values like in the pickled file. To do that, all you have to do is

train_images = train_images/255
test_images = test_images/255

You are specifically asking about how they internally work, so here you are:

No synchronization

private int counter;

public int getNextUniqueIndex() {
  return counter++; 
}

It basically reads value from memory, increments it and puts back to memory. This works in single thread but nowadays, in the era of multi-core, multi-CPU, multi-level caches it won't work correctly. First of all it introduces race condition (several threads can read the value at the same time), but also visibility problems. The value might only be stored in "local" CPU memory (some cache) and not be visible for other CPUs/cores (and thus - threads). This is why many refer to local copy of a variable in a thread. It is very unsafe. Consider this popular but broken thread-stopping code:

private boolean stopped;

public void run() {
    while(!stopped) {
        //do some work
    }
}

public void pleaseStop() {
    stopped = true;
}

Add volatile to stopped variable and it works fine - if any other thread modifies stopped variable via pleaseStop() method, you are guaranteed to see that change immediately in working thread's while(!stopped) loop. BTW this is not a good way to interrupt a thread either, see: How to stop a thread that is running forever without any use and Stopping a specific java thread.

AtomicInteger

private AtomicInteger counter = new AtomicInteger();

public int getNextUniqueIndex() {
  return counter.getAndIncrement();
}

The AtomicInteger class uses CAS (compare-and-swap) low-level CPU operations (no synchronization needed!) They allow you to modify a particular variable only if the present value is equal to something else (and is returned successfully). So when you execute getAndIncrement() it actually runs in a loop (simplified real implementation):

int current;
do {
  current = get();
} while(!compareAndSet(current, current + 1));

So basically: read; try to store incremented value; if not successful (the value is no longer equal to current), read and try again. The compareAndSet() is implemented in native code (assembly).

volatile without synchronization

private volatile int counter;

public int getNextUniqueIndex() {
  return counter++; 
}

This code is not correct. It fixes the visibility issue (volatile makes sure other threads can see change made to counter) but still has a race condition. This has been explained multiple times: pre/post-incrementation is not atomic.

The only side effect of volatile is "flushing" caches so that all other parties see the freshest version of the data. This is too strict in most situations; that is why volatile is not default.

volatile without synchronization (2)

volatile int i = 0;
void incIBy5() {
  i += 5;
}

The same problem as above, but even worse because i is not private. The race condition is still present. Why is it a problem? If, say, two threads run this code simultaneously, the output might be + 5 or + 10. However, you are guaranteed to see the change.

Multiple independent synchronized

void incIBy5() {
  int temp;
  synchronized(i) { temp = i }
  synchronized(i) { i = temp + 5 }
}

Surprise, this code is incorrect as well. In fact, it is completely wrong. First of all you are synchronizing on i, which is about to be changed (moreover, i is a primitive, so I guess you are synchronizing on a temporary Integer created via autoboxing...) Completely flawed. You could also write:

synchronized(new Object()) {
  //thread-safe, SRSLy?
}

No two threads can enter the same synchronized block with the same lock. In this case (and similarly in your code) the lock object changes upon every execution, so synchronized effectively has no effect.

Even if you have used a final variable (or this) for synchronization, the code is still incorrect. Two threads can first read i to temp synchronously (having the same value locally in temp), then the first assigns a new value to i (say, from 1 to 6) and the other one does the same thing (from 1 to 6).

The synchronization must span from reading to assigning a value. Your first synchronization has no effect (reading an int is atomic) and the second as well. In my opinion, these are the correct forms:

void synchronized incIBy5() {
  i += 5 
}

void incIBy5() {
  synchronized(this) {
    i += 5 
  }
}

void incIBy5() {
  synchronized(this) {
    int temp = i;
    i = temp + 5;
  }
}

Doing an if exists ... else ... involves doing two requests minimum (one to check, one to take action). The following approach requires only one where the record exists, two if an insert is required:

DECLARE @RowExists bit
SET @RowExists = 0
UPDATE MyTable SET DataField1 = 'xxx', @RowExists = 1 WHERE Key = 123
IF @RowExists = 0
  INSERT INTO MyTable (Key, DataField1) VALUES (123, 'xxx')

CSS Filter Effects

^{It's not fully cross-browsers solution, but must work well in most modern browser.}

<img src="image.jpg" />
<style>
    img:hover {
        /* Ch 23+, Saf 6.0+, BB 10.0+ */
        -webkit-filter: hue-rotate(240deg) saturate(3.3) grayscale(50%);
        /* FF 35+ */
        filter: hue-rotate(240deg) saturate(3.3) grayscale(50%);
    }
</style>

EXTERNAL DEMO PLAYGROUND

• CSS Filter Effects

IN-HOUSE DEMO SNIPPET (source:simpl.info)

#container {_x000D_
  text-align: center;_x000D_
}_x000D_
_x000D_
.blur {_x000D_
  filter: blur(5px)_x000D_
}_x000D_
_x000D_
.grayscale {_x000D_
  filter: grayscale(1)_x000D_
}_x000D_
_x000D_
.saturate {_x000D_
  filter: saturate(5)_x000D_
}_x000D_
_x000D_
.sepia {_x000D_
  filter: sepia(1)_x000D_
}_x000D_
_x000D_
.multi {_x000D_
  filter: blur(4px) invert(1) opacity(0.5)_x000D_
}

<div id="container">_x000D_
_x000D_
  <h1><a href="https://simpl.info/cssfilters/" title="simpl.info home page">simpl.info</a> CSS filters</h1>_x000D_
_x000D_
  <img src="https://simpl.info/cssfilters/balham.jpg" alt="No filter: Balham High Road and a rainbow" />_x000D_
  <img class="blur" src="https://simpl.info/cssfilters/balham.jpg" alt="Blur filter: Balham High Road and a rainbow" />_x000D_
  <img class="grayscale" src="https://simpl.info/cssfilters/balham.jpg" alt="Grayscale filter: Balham High Road and a rainbow" />_x000D_
  <img class="saturate" src="https://simpl.info/cssfilters/balham.jpg" alt="Saturate filter: Balham High Road and a rainbow" />_x000D_
  <img class="sepia" src="https://simpl.info/cssfilters/balham.jpg" alt="Sepia filter: Balham High Road and a rainbow" />_x000D_
  <img class="multi" src="https://simpl.info/cssfilters/balham.jpg" alt="Blur, invert and opacity filters: Balham High Road and a rainbow" />_x000D_
_x000D_
  <p><a href="https://github.com/samdutton/simpl/blob/gh-pages/cssfilters" title="View source for this page on GitHub" id="viewSource">View source on GitHub</a></p>_x000D_
_x000D_
</div>

NOTES

• This property is significantly different from and incompatible with Microsoft's older "filter" property
• Edge, element or it's parent can't have negative z-index (see bug)
• IE use old school way (link) ^{thanks @Costa}

RESOURCES:

• Specification [w3.org] w3 ref
• Documentation [developer.mozilla.org] doc
• Chrome platform status: [chromestatus.com] official status
• Browser support [caniuse.com] ref
• Say Hello to Webkit Filters [tutsplus.com] info
• Understanding CSS Filters Effect [html5rocks.com] doc

Really depends on what you're trying to do. Types are documentation in typescript, so you want to show intention about how this thing is supposed to be used when you're creating the type.

Option 1: If Users might have some but not all of the attributes during their lifetime

Make all attributes optional

type User = {
  attr0?: number
  attr1?: string
}

Option 2: If variables containing Users may begin null

type User = {
...
}
let u1: User = null;

Though, really, here if the point is to declare the User object before it can be known what will be assigned to it, you probably want to do let u1:User without any assignment.

Option 3: What you probably want

Really, the premise of typescript is to make sure that you are conforming to the mental model you outline in types in order to avoid making mistakes. If you want to add things to an object one-by-one, this is a habit that TypeScript is trying to get you not to do.

More likely, you want to make some local variables, then assign to the User-containing variable when it's ready to be a full-on User. That way you'll never be left with a partially-formed User. Those things are gross.

let attr1: number = ...
let attr2: string = ...
let user1: User = {
  attr1: attr1,
  attr2: attr2
}

https://www.w3.org/TR/html5/sec-forms.html#element-attrdef-form-novalidate

You can disable the validation in the form.

As of Telegram Desktop 1.3 you can format your messages and add links.

[Ctrl+K] = create link (https://my.website)

Other useful hotkeys are:

[Ctrl+B] = bold
[Ctrl+I] = italic
[Ctrl+Shift+M] = monospace
[Ctrl+Shift+N] = clear formatting

An easier and more standard way to simulate a mouse click would be directly using the event constructor to create an event and dispatch it.

Though the MouseEvent.initMouseEvent() method is kept for backward compatibility, creating of a MouseEvent object should be done using the MouseEvent() constructor.

var evt = new MouseEvent("click", {
    view: window,
    bubbles: true,
    cancelable: true,
    clientX: 20,
    /* whatever properties you want to give it */
});
targetElement.dispatchEvent(evt);

Demo: http://jsfiddle.net/DerekL/932wyok6/

This works on all modern browsers. For old browsers including IE, MouseEvent.initMouseEvent will have to be used unfortunately though it's deprecated.

var evt = document.createEvent("MouseEvents");
evt.initMouseEvent("click", canBubble, cancelable, view,
                   detail, screenX, screenY, clientX, clientY,
                   ctrlKey, altKey, shiftKey, metaKey,
                   button, relatedTarget);
targetElement.dispatchEvent(evt);

FirebaseInstanceId.getInstance().getInstanceId() deprecated. Now get user FCM token

 FirebaseMessaging.getInstance().getToken()
            .addOnCompleteListener(new OnCompleteListener<String>() {
                @Override
                public void onComplete(@NonNull Task<String> task) {
                    if (!task.isSuccessful()) {
                        System.out.println("--------------------------");
                        System.out.println(" " + task.getException());
                        System.out.println("--------------------------");
                        return;
                    }

                    // Get new FCM registration token
                    String token = task.getResult();

                    // Log 
                    String msg = "GET TOKEN " + token;
                    System.out.println("--------------------------");
                    System.out.println(" " + msg);
                    System.out.println("--------------------------");

                }
            });

I've used neocomplcache for about half a year. It is a plugin that collects a cache of words in all your buffers and then provides them for you to auto-complete with.

There is an array of screenshots on the project page in the previous link. Neocomplcache also has a ton of configuration options, of which there are basic examples on the project page as well.

If you need more depth, you can look at the relevant section in my vimrc - just search for the word neocomplcache.

Use a table variable if for a very small quantity of data (thousands of bytes)

Use a temporary table for a lot of data

Another way to think about it: if you think you might benefit from an index, automated statistics, or any SQL optimizer goodness, then your data set is probably too large for a table variable.

In my example, I just wanted to put about 20 rows into a format and modify them as a group, before using them to UPDATE / INSERT a permanent table. So a table variable is perfect.

But I am also running SQL to back-fill thousands of rows at a time, and I can definitely say that the temporary tables perform much better than table variables.

This is not unlike how CTE's are a concern for a similar size reason - if the data in the CTE is very small, I find a CTE performs as good as or better than what the optimizer comes up with, but if it is quite large then it hurts you bad.

My understanding is mostly based on http://www.developerfusion.com/article/84397/table-variables-v-temporary-tables-in-sql-server/, which has a lot more detail.

You can using the EventLog class, as explained on How to: Write to the Application Event Log (Visual C#):

var appLog = new EventLog("Application");
appLog.Source = "MySource";
appLog.WriteEntry("Test log message");

However, you'll need to configure this source "MySource" using administrative privileges:

Use WriteEvent and WriteEntry to write events to an event log. You must specify an event source to write events; you must create and configure the event source before writing the first entry with the source.

Try this:

subset(studentdata, Drink=='water')

that should do it.

I solved that deleting the Gemfile.lock

Martijen's answer makes sense, but it was missing something crucial that may seem obvious to others but was hard for me to figure out.

In the version where you use argparse, you need to have this line in the main body.

args = parser.parse_args(args)

Normally when you are using argparse just in a script you just write

args = parser.parse_args()

and parse_args find the arguments from the command line. But in this case the main function does not have access to the command line arguments, so you have to tell argparse what the arguments are.

Here is an example

import argparse
import sys

def x(x_center, y_center):
    print "X center:", x_center
    print "Y center:", y_center

def main(args):
    parser = argparse.ArgumentParser(description="Do something.")
    parser.add_argument("-x", "--xcenter", type=float, default= 2, required=False)
    parser.add_argument("-y", "--ycenter", type=float, default= 4, required=False)
    args = parser.parse_args(args)
    x(args.xcenter, args.ycenter)

if __name__ == '__main__':
    main(sys.argv[1:])

Assuming you named this mytest.py To run it you can either do any of these from the command line

python ./mytest.py -x 8
python ./mytest.py -x 8 -y 2
python ./mytest.py 

which returns respectively

X center: 8.0
Y center: 4

or

X center: 8.0
Y center: 2.0

or

X center: 2
Y center: 4

Or if you want to run from another python script you can do

import mytest
mytest.main(["-x","7","-y","6"]) 

which returns

X center: 7.0
Y center: 6.0

Provided you aren't using the same destination view controller with different identifiers, the code can be more concise than the other solutions (and avoids the as! in some of the other answers):

override func prepare(for segue: NSStoryboardSegue, sender: Any?) {
    if let myViewController = segue.destinationController as? MyViewController { 
        // Set up the VC
    }
}

Edit -- just saw your comment about the performance problems associated with a potentially bad piece of input data. I don't know offhand how try/catch on parseInt compares to a regex. I would guess, based on very little hard knowledge, that regexes are not hugely performant, compared to try/catch, in Java.

Anyway, I'd just do this:

public Integer tryParse(Object obj) {
  Integer retVal;
  try {
    retVal = Integer.parseInt((String) obj);
  } catch (NumberFormatException nfe) {
    retVal = 0; // or null if that is your preference
  }
  return retVal;
}

In my case it was the missing .pub extension of a key. I pasted it from clipboard and saved as mykey. The following command returned described error:

ssh-copy-id -i mykey localhost

After renaming it with mv mykey mykey.pub, works correctly.

ssh-copy-id -i mykey.pub localhost

Another possibility is using tidyr::expand:

library(dplyr)
library(tidyr)

df %>% group_by_at(vars(-freq)) %>% expand(temp = 1:freq) %>% select(-temp)

#> # A tibble: 6 x 2
#> # Groups:   var1, var2 [3]
#>   var1  var2 
#>   <fct> <fct>
#> 1 a     d    
#> 2 b     e    
#> 3 b     e    
#> 4 c     f    
#> 5 c     f    
#> 6 c     f

One-liner version of vonjd's answer:

library(data.table)

setDT(df)[ ,list(freq=rep(1,freq)),by=c("var1","var2")][ ,freq := NULL][]

#>    var1 var2
#> 1:    a    d
#> 2:    b    e
#> 3:    b    e
#> 4:    c    f
#> 5:    c    f
#> 6:    c    f

^{Created on 2019-05-21 by the reprex package (v0.2.1)}

Accepted answer's $('iframe').load will now produce a.indexOf is not a function error. Can be updated to:

$('iframe').on('load', function() {
  // ...
});

Few others similar to .load deprecated since jQuery 1.8: "Uncaught TypeError: a.indexOf is not a function" error when opening new foundation project

This exception comes from the client, right? Please perform a forward and reverse DNS lookup of the server hostname. Your server has incorrect DNS entries. They are absolutely crucial for Kerberos. The proper place is your DNS server, in your case: domain controller. Figure out the IP address of your DNS server and contact your admin. The other option is a missing SPN, please check that too.

SELECT E.CaseNum, E.FileNum, E.ActivityNum, E.Grade, V.Score
FROM Evaluation E
INNER JOIN Value V
ON E.CaseNum = V.CaseNum AND E.FileNum = V.FileNum AND E.ActivityNum = V.ActivityNum

@Context ServletContext ctx;
@Context private HttpServletResponse response;

@GET
@Produces(MediaType.APPLICATION_OCTET_STREAM)
@Path("/download/{filename}")
public StreamingOutput download(@PathParam("filename") String fileName) throws Exception {
    final File file = new File(ctx.getInitParameter("file_save_directory") + "/", fileName);
    response.setHeader("Content-Length", String.valueOf(file.length()));
    response.setHeader("Content-Disposition", "attachment; filename=\""+ file.getName() + "\"");
    return new StreamingOutput() {
        @Override
        public void write(OutputStream output) throws IOException,
                WebApplicationException {
            Utils.writeBuffer(new BufferedInputStream(new FileInputStream(file)), new BufferedOutputStream(output));
        }
    };
}

You need to use the 'g' switch for a global search

var result = mystring.match(/(&|&)?([^=]+)=([^&]+)/g)

Using awk.

i starts at 0, i++ will increment the value of i, but return the original value that i held before being incremented.

awk '{print i++ "," $0}' file

Here's an overview of the parameters to the map(function, *sequences) function:

• function is the name of your function.
• sequences is any number of sequences, which are usually lists or tuples. map will iterate over them simultaneously and give the current values to function. That's why the number of sequences should equal the number of parameters to your function.

It sounds like you're trying to iterate for some of function's parameters but keep others constant, and unfortunately map doesn't support that. I found an old proposal to add such a feature to Python, but the map construct is so clean and well-established that I doubt something like that will ever be implemented.

Use a workaround like global variables or list comprehensions, as others have suggested.

Since there's no mention of how to compile a .c file together with a bunch of .o files, and this comment asks for it:

where's the main.c in this answer? :/ if file1.c is the main, how do you link it with other already compiled .o files? – Tom Brito Oct 12 '14 at 19:45

$ gcc main.c lib_obj1.o lib_obj2.o lib_objN.o -o x0rbin

Here, main.c is the C file with the main() function and the object files (*.o) are precompiled. GCC knows how to handle these together, and invokes the linker accordingly and results in a final executable, which in our case is x0rbin.

You will be able to use functions not defined in the main.c but using an extern reference to functions defined in the object files (*.o).

You can also link with .obj or other extensions if the object files have the correct format (such as COFF).

Try this

DT <- data.table(X1 = c("a", "b"), X2 = c(1,2), X3 = c("hello", "you"))
changeCols <- colnames(DT)[which(as.vector(DT[,lapply(.SD, class)]) == "character")]

DT[,(changeCols):= lapply(.SD, as.factor), .SDcols = changeCols]

Try this:

print("".join(str(x) for x in This))

Or if you need to set the value of found:

found = Value1.StartsWith("abc")

Edit: Given your edit, I would do something like:

found = Value1.Substring(0, 5).Contains("abc")

One way to check it is to loop through the string and return true (or false depending on what you want) when you hit a number.

function checkStringForNumbers(input){
    let str = String(input);
    for( let i = 0; i < str.length; i++){
              console.log(str.charAt(i));
        if(!isNaN(str.charAt(i))){           //if the string is a number, do the following
            return true;
        }
    }
}

One command to convert date time to Unix format and then to string

    DateTime.strptime(Time.now.utc.to_i.to_s,'%s').strftime("%d %m %y")

    Time.now.utc.to_i #Converts time from Unix format
    DateTime.strptime(Time.now.utc.to_i.to_s,'%s') #Converts date and time from unix format to DateTime

finally strftime is used to format date

Example:

    irb(main):034:0> DateTime.strptime("1410321600",'%s').strftime("%d %m %y")
    "10 09 14"

Easiest way: search for javac.exe in windows search bar. Then copy and paste the entire folder name and add it into the environmental variables path in advanced system settings.

If you are looking for a command-line based solution, you can ignore my answer. I am gonna suggest you to use GitKraken. It's an extraordinary git UI client. It shows the Git tree on the homepage. You can just look at them and know what is going on with the project. Just select a specific commit, right-click on it and select the option 'Create a branch here'. It will give you a text box to enter the branch name. Enter branch name, select 'OK' and you are set. It's really very easy to use.

Use [NSIndexPath indexPathForRow:inSection:] to quickly create an index path.

Edit: In Swift 3:

let indexPath = IndexPath(row: rowIndex, section: sectionIndex)

Swift 5

IndexPath(row: 0, section: 0)

I provide this post for both IntelliJ and Eclipse.

Eclipse:

For making unit test for your project, please follow these steps (I am using Eclipse in order to write this test):

1- Click on New -> Java Project.

2- Write down your project name and click on finish.

3- Right click on your project. Then, click on New -> Class.

4- Write down your class name and click on finish.

Then, complete the class like this:

public class Math {
    int a, b;
    Math(int a, int b) {
        this.a = a;
        this.b = b;
    }
    public int add() {
        return a + b;
    }
}

5- Click on File -> New -> JUnit Test Case.

6- Check setUp() and click on finish. SetUp() will be the place that you initialize your test.

7- Click on OK.

8- Here, I simply add 7 and 10. So, I expect the answer to be 17. Complete your test class like this:

import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
public class MathTest {
    Math math;
    @Before
    public void setUp() throws Exception {
        math = new Math(7, 10);
    }
    @Test
    public void testAdd() {
        Assert.assertEquals(17, math.add());
    }
}

9- Write click on your test class in package explorer and click on Run as -> JUnit Test.

10- This is the result of the test.

IntelliJ: Note that I used IntelliJ IDEA community 2020.1 for the screenshots. Also, you need to set up your jre before these steps. I am using JDK 11.0.4.

1- Right-click on the main folder of your project-> new -> directory. You should call this 'test'. 2- Right-click on the test folder and create the proper package. I suggest creating the same packaging names as the original class. Then, you right-click on the test directory -> mark directory as -> test sources root. 3- In the right package in the test directory, you need to create a Java class (I suggest to use Test.java). 4- In the created class, type '@Test'. Then, among the options that IntelliJ gives you, select Add 'JUnitx' to classpath. 5- Write your test method in your test class. The method signature is like:

@Test
public void test<name of original method>(){
...
}

You can do your assertions like below:

Assertions.assertTrue(f.flipEquiv(node1_1, node2_1));

These are the imports that I added:

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

This is the test that I wrote:

You can check your methods like below:

Assertions.assertEquals(<Expected>,<actual>);
Assertions.assertTrue(<actual>);
...

For running your unit tests, right-click on the test and click on Run .

If your test passes, the result will be like below:

I hope it helps. You can see the structure of the project in GitHub https://github.com/m-vahidalizadeh/problem_solving_project.

Try BeanComparator from Apache Commons.

import org.apache.commons.beanutils.BeanComparator;


BeanComparator fieldComparator = new BeanComparator("fruitName");
Collections.sort(fruits, fieldComparator);

Change your return type to java.lang.Integer . This way you can safely return null

I actually had a failure in the Microsoft uninstall. I had installed node-v8.2.1-x64 and needed to run version node-v6.11.1-x64.

The uninstalled was failing with the error: "Windows cannot access the specified device, path, or file" or similar.

I ended up going to the Downloads folder right clicking the node-v8.2.1-x64 MSI and selecting uninstall.. this worked.

Regards, Jon

The reason you don't have permissions to open file is because you didn't grant other apps to open or view the file on your intent. To grant other apps to open the downloaded file, include the flag(as shown below): FLAG_GRANT_READ_URI_PERMISSION

Intent browserIntent = new Intent(Intent.ACTION_VIEW);
browserIntent.setDataAndType(getUriFromFile(localFile), "application/pdf");
browserIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION|
Intent.FLAG_ACTIVITY_NO_HISTORY);
startActivity(browserIntent);

And for function:

getUriFromFile(localFile)

private Uri getUriFromFile(File file){
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
        return Uri.fromFile(file);
    }else {
        return FileProvider.getUriForFile(itemView.getContext(), itemView.getContext().getApplicationContext().getPackageName() + ".provider", file);
    }
}

An Alternative to AsyncTask is robospice. https://github.com/octo-online/robospice.

Some of the features of robospice.

1.executes asynchronously (in a background AndroidService) network requests (ex: REST requests using Spring Android).notify you app, on the UI thread, when result is ready.

2.is strongly typed ! You make your requests using POJOs and you get POJOs as request results.

3.enforce no constraints neither on POJOs used for requests nor on Activity classes you use in your projects.

4.caches results (in Json with both Jackson and Gson, or Xml, or flat text files, or binary files, even using ORM Lite).

5.notifies your activities (or any other context) of the result of the network request if and only if they are still alive

6.no memory leak at all, like Android Loaders, unlike Android AsyncTasks notifies your activities on their UI Thread.

7.uses a simple but robust exception handling model.

Samples to start with. https://github.com/octo-online/RoboSpice-samples.

A sample of robospice at https://play.google.com/store/apps/details?id=com.octo.android.robospice.motivations&feature=search_result.

You have to change the values in the CATALINA_OPTS option defined in the Tomcat Catalina start file. To increase the PermGen memory change the value of the MaxPermSize variable, otherwise change the value of the Xmx variable.

Linux & Mac OS: Open or create setenv.sh file placed in the "bin" directory. You have to apply the changes to this line:

export CATALINA_OPTS="$CATALINA_OPTS -server -Xms256m -Xmx1024m -XX:PermSize=512m -XX:MaxPermSize=512m"

Windows:

Open or create the setenv.bat file placed in the "bin" directory:

set CATALINA_OPTS=-server -Xms256m -Xmx1024m -XX:PermSize=512m -XX:MaxPermSize=512m

If you want to add the row to the end of the grid use the Add() method of the Rows collection...

DataGridView1.Rows.Add(New String(){Value1, Value2, Value3})

If you want to insert the row at a partiular position use the Insert() method of the Rows collection (as GWLlosa also said)...

DataGridView1.Rows.Insert(rowPosition, New String(){value1, value2, value3})

I know you mentioned you weren't doing databinding, but if you defined a strongly-typed dataset with a single datatable in your project, you could use that and get some nice strongly typed methods to do this stuff rather than rely on the grid methods...

DataSet1.DataTable.AddRow(1, "John Doe", true)

Java 8 and later

With Java 8's date time API change, Use LocalDate

LocalDate date = LocalDate.now().minusDays(300);

Similarly you can have

LocalDate date = someLocalDateInstance.minusDays(300);

Refer to https://stackoverflow.com/a/23885950/260990 for translation between java.util.Date <--> java.time.LocalDateTime

Date in = new Date();
LocalDateTime ldt = LocalDateTime.ofInstant(in.toInstant(), ZoneId.systemDefault());
Date out = Date.from(ldt.atZone(ZoneId.systemDefault()).toInstant());

Java 7 and earlier

Use Calendar's add() method

Calendar cal = Calendar.getInstance();
cal.setTime(dateInstance);
cal.add(Calendar.DATE, -30);
Date dateBefore30Days = cal.getTime();

To add the elements of a list to a set, use update

From https://docs.python.org/2/library/sets.html

s.update(t): return set s with elements added from t

E.g.

>>> s = set([1, 2])
>>> l = [3, 4]
>>> s.update(l)
>>> s
{1, 2, 3, 4}

If you instead want to add the entire list as a single element to the set, you can't because lists aren't hashable. You could instead add a tuple, e.g. s.add(tuple(l)). See also TypeError: unhashable type: 'list' when using built-in set function for more information on that.

When you use df.apply(), each row of your DataFrame will be passed to your lambda function as a pandas Series. The frame's columns will then be the index of the series and you can access values using series[label].

So this should work:

df['D'] = (df.apply(lambda x: myfunc(x[colNames[0]], x[colNames[1]]), axis=1)) 

I'm a bit late to the party but I wrote a custom view that let's you do this, by default it's set to entypo, but you can modify it to use any iconfont: check it out here: github.com/MarsVard/IconView

// edit the library is old and not supported anymore... new one here https://github.com/MarsVard/IonIconView