I know the Q is not about Firefox but I did not want to add a copy of this question to just answer it myself.

For Firefox you need to add debugger; to be able to do what @matt-ball suggested for the script tag.

So on your code, you add debugger above the line you want to debug and then you can add breakpoints. If you just set the breakpoints on the browser it won't stop.

If this is not the place to add a Firefox answer given that the question is about Chrome. Don't :( minus the answer just let me know where I should post it and I'll happily move the post. :)

this was my solution:

i was looking for how to display the result not to calculate...

so. in this case. there is no column TOTAL in the database, but there is a total on the webpage...

 <td><?php echo $row['amount1'] * $row['amount2'] ?></td>

also this was needed first...

<?php 
   $conn=mysql_connect('localhost','testbla','adminbla');
mysql_select_db("testa",$conn);

$query1 = "select * from info2";
$get=mysql_query($query1);
while($row=mysql_fetch_array($get)){
   ?>

I know this is really a really old question, but I was trying to do the same thing and I stumbled upon a new formula in excel called "TEXTJOIN".

For the question, the following formula solves the problem

=TEXTJOIN("",TRUE,(a1:a4))

The signature of "TEXTJOIN" is explained as TEXTJOIN(delimiter,ignore_empty,text1,[text2],[text3],...)

Here is a method that is compatible with the week numbers that Google Analytics, and also the same numbering scheme we used internally at Intel, and which I'm sure is also used in a lot of other contexts.

// Google Analytics does not follow ISO standards for date.
// It numbers week 1 starting on Jan. 1, regardless what day of week it starts on.
// It treats Sunday as the first day of the week.
// The first and last weeks of a year are usually not complete weeks.
public static DateTime GetStartDateTimeFromWeekNumberInYear(int year, uint weekOfYear)
{
  if (weekOfYear == 0 || weekOfYear > 54) throw new ArgumentException("Week number must be between 1 and 54! (Yes, 54... Year 2000 had Jan. 1 on a Saturday plus 53 Sundays.)");

  // January 1 -- first week.
  DateTime firstDayInWeek = new DateTime(year, 1, 1);
  if (weekOfYear == 1) return firstDayInWeek;

  // Get second week, starting on the following Sunday.      
  do
  {
    firstDayInWeek = firstDayInWeek.AddDays(1);
  } while (firstDayInWeek.DayOfWeek != DayOfWeek.Sunday);

  if (weekOfYear == 2) return firstDayInWeek;

  // Now get the Sunday of whichever week we're looking for.
  return firstDayInWeek.AddDays((weekOfYear - 2)*7);
}

Hibernate Optional findTopByClientIdAndStatusOrderByCreateTimeDesc(Integer clientId, Integer status);

"findTop"!! The only one result!

Open Anaconda Navigator.

Go to File\Preferences.

Enable SSL verification Disable (not recommended)

or Enable and indicate SSL certificate path(Optional)

Update a package to a specific version:

Select Install on Top-Right

Select package click on tick

Mark for update

Mark for specific version installation

Click Apply

for large numbers that display with scientific notation set format to just '#'

Probably my question should have been more specific. I actually know a base class for the string so solved it by:

ReportClass report = (ReportClass)Activator.CreateInstance(Type.GetType(reportClass));

The Activator.CreateInstance class has various methods to achieve the same thing in different ways. I could have cast it to an object but the above is of the most use to my situation.

Python really tries hard to intelligently set sys.path. How it is set can get really complicated. The following guide is a watered-down, somewhat-incomplete, somewhat-wrong, but hopefully-useful guide for the rank-and-file python programmer of what happens when python figures out what to use as the initial values of sys.path, sys.executable, sys.exec_prefix, and sys.prefix on a normal python installation.

First, python does its level best to figure out its actual physical location on the filesystem based on what the operating system tells it. If the OS just says "python" is running, it finds itself in $PATH. It resolves any symbolic links. Once it has done this, the path of the executable that it finds is used as the value for sys.executable, no ifs, ands, or buts.

Next, it determines the initial values for sys.exec_prefix and sys.prefix.

If there is a file called pyvenv.cfg in the same directory as sys.executable or one directory up, python looks at it. Different OSes do different things with this file.

One of the values in this config file that python looks for is the configuration option home = <DIRECTORY>. Python will use this directory instead of the directory containing sys.executable when it dynamically sets the initial value of sys.prefix later. If the applocal = true setting appears in the pyvenv.cfg file on Windows, but not the home = <DIRECTORY> setting, then sys.prefix will be set to the directory containing sys.executable.

Next, the PYTHONHOME environment variable is examined. On Linux and Mac, sys.prefix and sys.exec_prefix are set to the PYTHONHOME environment variable, if it exists, superseding any home = <DIRECTORY> setting in pyvenv.cfg. On Windows, sys.prefix and sys.exec_prefix is set to the PYTHONHOME environment variable, if it exists, unless a home = <DIRECTORY> setting is present in pyvenv.cfg, which is used instead.

Otherwise, these sys.prefix and sys.exec_prefix are found by walking backwards from the location of sys.executable, or the home directory given by pyvenv.cfg if any.

If the file lib/python<version>/dyn-load is found in that directory or any of its parent directories, that directory is set to be to be sys.exec_prefix on Linux or Mac. If the file lib/python<version>/os.py is is found in the directory or any of its subdirectories, that directory is set to be sys.prefix on Linux, Mac, and Windows, with sys.exec_prefix set to the same value as sys.prefix on Windows. This entire step is skipped on Windows if applocal = true is set. Either the directory of sys.executable is used or, if home is set in pyvenv.cfg, that is used instead for the initial value of sys.prefix.

If it can't find these "landmark" files or sys.prefix hasn't been found yet, then python sets sys.prefix to a "fallback" value. Linux and Mac, for example, use pre-compiled defaults as the values of sys.prefix and sys.exec_prefix. Windows waits until sys.path is fully figured out to set a fallback value for sys.prefix.

Then, (what you've all been waiting for,) python determines the initial values that are to be contained in sys.path.

1. The directory of the script which python is executing is added to sys.path. On Windows, this is always the empty string, which tells python to use the full path where the script is located instead.
2. The contents of PYTHONPATH environment variable, if set, is added to sys.path, unless you're on Windows and applocal is set to true in pyvenv.cfg.
3. The zip file path, which is <prefix>/lib/python35.zip on Linux/Mac and os.path.join(os.dirname(sys.executable), "python.zip") on Windows, is added to sys.path.
4. If on Windows and no applocal = true was set in pyvenv.cfg, then the contents of the subkeys of the registry key HK_CURRENT_USER\Software\Python\PythonCore\<DLLVersion>\PythonPath\ are added, if any.
5. If on Windows and no applocal = true was set in pyvenv.cfg, and sys.prefix could not be found, then the core contents of the of the registry key HK_CURRENT_USER\Software\Python\PythonCore\<DLLVersion>\PythonPath\ is added, if it exists;
6. If on Windows and no applocal = true was set in pyvenv.cfg, then the contents of the subkeys of the registry key HK_LOCAL_MACHINE\Software\Python\PythonCore\<DLLVersion>\PythonPath\ are added, if any.
7. If on Windows and no applocal = true was set in pyvenv.cfg, and sys.prefix could not be found, then the core contents of the of the registry key HK_CURRENT_USER\Software\Python\PythonCore\<DLLVersion>\PythonPath\ is added, if it exists;
8. If on Windows, and PYTHONPATH was not set, the prefix was not found, and no registry keys were present, then the relative compile-time value of PYTHONPATH is added; otherwise, this step is ignored.
9. Paths in the compile-time macro PYTHONPATH are added relative to the dynamically-found sys.prefix.
10. On Mac and Linux, the value of sys.exec_prefix is added. On Windows, the directory which was used (or would have been used) to search dynamically for sys.prefix is added.

At this stage on Windows, if no prefix was found, then python will try to determine it by searching all the directories in sys.path for the landmark files, as it tried to do with the directory of sys.executable previously, until it finds something. If it doesn't, sys.prefix is left blank.

Finally, after all this, Python loads the site module, which adds stuff yet further to sys.path:

It starts by constructing up to four directories from a head and a tail part. For the head part, it uses sys.prefix and sys.exec_prefix; empty heads are skipped. For the tail part, it uses the empty string and then lib/site-packages (on Windows) or lib/pythonX.Y/site-packages and then lib/site-python (on Unix and Macintosh). For each of the distinct head-tail combinations, it sees if it refers to an existing directory, and if so, adds it to sys.path and also inspects the newly added path for configuration files.

Based on some answers I found here, I made myself a small helper file to source for my projects:

trycatch.sh

#!/bin/bash

function try()
{
    [[ $- = *e* ]]; SAVED_OPT_E=$?
    set +e
}

function throw()
{
    exit $1
}

function catch()
{
    export ex_code=$?
    (( $SAVED_OPT_E )) && set +e
    return $ex_code
}

function throwErrors()
{
    set -e
}

function ignoreErrors()
{
    set +e
}

here is an example how it looks like in use:

#!/bin/bash
export AnException=100
export AnotherException=101

# start with a try
try
(   # open a subshell !!!
    echo "do something"
    [ someErrorCondition ] && throw $AnException

    echo "do something more"
    executeCommandThatMightFail || throw $AnotherException

    throwErrors # automaticatly end the try block, if command-result is non-null
    echo "now on to something completely different"
    executeCommandThatMightFail

    echo "it's a wonder we came so far"
    executeCommandThatFailsForSure || true # ignore a single failing command

    ignoreErrors # ignore failures of commands until further notice
    executeCommand1ThatFailsForSure
    local result = $(executeCommand2ThatFailsForSure)
    [ result != "expected error" ] && throw $AnException # ok, if it's not an expected error, we want to bail out!
    executeCommand3ThatFailsForSure

    echo "finished"
)
# directly after closing the subshell you need to connect a group to the catch using ||
catch || {
    # now you can handle
    case $ex_code in
        $AnException)
            echo "AnException was thrown"
        ;;
        $AnotherException)
            echo "AnotherException was thrown"
        ;;
        *)
            echo "An unexpected exception was thrown"
            throw $ex_code # you can rethrow the "exception" causing the script to exit if not caught
        ;;
    esac
}

If maven is not creating Local Repository i.e .m2/repository folder then try below step.

In your Eclipse\Spring Tool Suite, Go to Window->preferences-> maven->user settings-> click on Restore Defaults-> Apply->Apply and close

Writing my own solution since the existing didn't fit my requirements.

What this covers:

• HTTPS download (switch package to http for HTTP downloads)
• Promise based function
• Handle forwarded path (status 302)
• Browser header - required on a few CDNs
• Filename from URL (as well as hardcoded)
• Error handling

It's typed, it's safer. Feel free to drop the types if you're working with plain JS (no Flow, no TS) or convert to a .d.ts file

index.js

import httpsDownload from httpsDownload;
httpsDownload('https://example.com/file.zip', './');

httpsDownload.[js|ts]

import https from "https";
import fs from "fs";
import path from "path";

function download(
  url: string,
  folder?: string,
  filename?: string
): Promise<void> {
  return new Promise((resolve, reject) => {
    const req = https
      .request(url, { headers: { "User-Agent": "javascript" } }, (response) => {
        if (response.statusCode === 302 && response.headers.location != null) {
          download(
            buildNextUrl(url, response.headers.location),
            folder,
            filename
          )
            .then(resolve)
            .catch(reject);
          return;
        }

        const file = fs.createWriteStream(
          buildDestinationPath(url, folder, filename)
        );
        response.pipe(file);
        file.on("finish", () => {
          file.close();
          resolve();
        });
      })
      .on("error", reject);
    req.end();
  });
}

function buildNextUrl(current: string, next: string) {
  const isNextUrlAbsolute = RegExp("^(?:[a-z]+:)?//").test(next);
  if (isNextUrlAbsolute) {
    return next;
  } else {
    const currentURL = new URL(current);
    const fullHost = `${currentURL.protocol}//${currentURL.hostname}${
      currentURL.port ? ":" + currentURL.port : ""
    }`;
    return `${fullHost}${next}`;
  }
}

function buildDestinationPath(url: string, folder?: string, filename?: string) {
  return path.join(folder ?? "./", filename ?? generateFilenameFromPath(url));
}

function generateFilenameFromPath(url: string): string {
  const urlParts = url.split("/");
  return urlParts[urlParts.length - 1] ?? "";
}

export default download;

Meaning of a Const Member Function in C++ Common Knowledge: Essential Intermediate Programming gives a clear explanation:

The type of the this pointer in a non-const member function of a class X is X * const. That is, it’s a constant pointer to a non-constant X (see Const Pointers and Pointers to Const [7, 21]). Because the object to which this refers is not const, it can be modified. The type of this in a const member function of a class X is const X * const. That is, it’s a constant pointer to a constant X. Because the object to which this refers is const, it cannot be modified. That’s the difference between const and non-const member functions.

So in your code:

class foobar
{
  public:
     operator int () const;
     const char* foo() const;
};

You can think it as this:

class foobar
{
  public:
     operator int (const foobar * const this) const;
     const char* foo(const foobar * const this) const;
};

This works for fedora 23. The compat gcc repositories will be slightly different based on your version of fedora.

If you install the following repositories:

sudo yum install compat-gcc-34-c++-3.4.6-37.fc23.x86_64 compat-gcc-34-3.4.6-37.fc23.x86_64 

Now make the soft links as mentioned above assuming your cuda bin folder is in /usr/local/cuda/

sudo ln -s /usr/bin/gcc-34 /usr/local/cuda/bin/gcc
sudo ln -s /usr/bin/g++-34 /usr/local/cuda/bin/g++

You should now be able to compile with nvcc without the gcc version error.

It appears to me that del will give you the memory back, while assigning a new list will make the old one be deleted only when the gc runs.matter.

This may be useful for large lists, but for small list it should be negligible.

Edit: As Algorias, it doesn't matter.

Note that

del old_list[ 0:len(old_list) ]

is equivalent to

del old_list[:]

Pending design decision. Meanwhile, use exclude()

The Django issue tracker has the remarkable entry #5763, titled "Queryset doesn't have a "not equal" filter operator". It is remarkable because (as of April 2016) it was "opened 9 years ago" (in the Django stone age), "closed 4 years ago", and "last changed 5 months ago".

Read through the discussion, it is interesting. Basically, some people argue __ne should be added while others say exclude() is clearer and hence __ne should not be added.

(I agree with the former, because the latter argument is roughly equivalent to saying Python should not have != because it has == and not already...)

The extensions available for each version of Postgresql vary. An easy way to check which extensions are available is, as has been already mentioned:

SELECT * FROM pg_available_extensions;

If the extension that you are looking for is available, you can install it using:

CREATE EXTENSION 'extensionName';

or if you want to drop it use:

DROP EXTENSION 'extensionName';

With psql you can additionally check if the extension has been successfully installed using \dx, and find more details about the extension using \dx+ extensioName. It returns additional information about the extension, like which packages are used with it.

If the extension is not available in your Postgres version, then you need to download the necessary binary files and libraries and locate it them at /usr/share/conrib

To open a PDF at page 100 the follow works

<path to Adobe Reader> /A "page=100" "<Path To PDF file>"

If you require more than one argument separate them with &

I use the following in a batch file to open the book I'm reading to the page I was up to.

C:\Program Files\Adobe\Reader 10.0\Reader\AcroRd32.exe /A "page=149&pagemode=none" "D:\books\MCTS(70-562) ASP.Net 3.5 Development.pdf"

The best list of command line args for Adobe Reader I have found is here.
http://partners.adobe.com/public/developer/en/acrobat/PDFOpenParameters.pdf

It's for version 7 but all the arguments I tried worked.

As for closing the file, I think you will need to use the SDK, or if you are opening the file from code you could close the file from code once you have finished with it.

Similar setup, identical problem. Some installations would work, but most would start redirecting (http 302) to /Account/Login?ReturnUrl=%2f after a successful login, even though we're not using Forms Authentication. In my case after trying everything else, the solution was to switch the Application Pool Managed Pipeline Mode from from Integrated to Classic, which cleared up the problem immediately.

Rails got ActiveSupport::CoreExtensions::String::Inflections module that provides such methods. They're all worth looking at. For your example:

'Book Author Title'.parameterize.underscore.to_sym # :book_author_title

In addition, Win10 gives you an option to open git bash from your working directory by right-clicking on your folder and selecting GitBash here.

For passing in command line parameters. For example args[0] will give you the first command line parameter, if there is one.

If you want to quickly create multidimensional array for simple value using one liner I would recommend using this array library to do it like this:

$array = Arr::setNestedElement([], '1.2.3', 'value');

which will produce

[
  1 => [
    2 => [
      3 => 'value'
    ]
  ]
]

This can be achieved by using constructor function instead of literal

var o = new function() {
  this.foo = "it";
  this.bar = this.foo + " works"
}

alert(o.bar)

On Windows in general, running command prompt with administrator works. But if you don't want to do that every time, specify Full control permissions of your user (or simply all users) on Anaconda3 directory. Be aware that specifying it for all users allows other users to install their own packages and modify the content.

more efficient, due to less DOM lookups:

$('#multiselect1').multiselect({
    // ...
    onChange: function() {
        var selected = this.$select.val();
        // ...
    }
});

You could also set the default format for float :

pd.options.display.float_format = '{:.2%}'.format

Use '{:.2%}' instead of '{:.2f}%' - The former converts 0.41 to 41.00% (correctly), the latter to 0.41% (incorrectly)

Yes. Try the following in your python interpreter:

and

>>>False and 3/0
False
>>>True and 3/0
ZeroDivisionError: integer division or modulo by zero

or

>>>True or 3/0
True
>>>False or 3/0
ZeroDivisionError: integer division or modulo by zero

With typescript 2.8, you can use the new built-in Exclude type. The 2.8 release notes actually mention this in the section "Predefined conditional types":

Note: The Exclude type is a proper implementation of the Diff type suggested here. [...] We did not include the Omit type because it is trivially written as Pick<T, Exclude<keyof T, K>>.

Applying this to your example, type XY could be defined as:

type XY = Pick<XYZ, Exclude<keyof XYZ, "z">>

Actually this can happens because of two reason.

1. Your project not getting/ Updating your dependencies. Go to your terminal and enter mvn clean install. Or right click on pom.xml and click Add as Mevan Project.

2. Check your jdk has set properly to the project.

It is not working because you have to declare which global variables you'll be accessing:

$data = 'My data';

function menugen() {
    global $data; // <-- Add this line

    echo "[" . $data . "]";
}

menugen();

Otherwise you can access it as $GLOBALS['data']. See Variable scope.

Even if a little off-topic, I'd suggest you avoid using globals at all and prefer passing as parameters.

I found a solution on another thread that works - use the pull-left class:

 <a href="#" class="pull-left"><img src="/path/to/image.png"></a> 

Thanks to Michael in this thread:

Bootstrap - How to add a logo to navbar class?

The issue here is that ng-repeat creates its own scope, so when you do selected=$index it creates a new a selected property in that scope rather than altering the existing one. To fix this you have two options:

Change the selected property to a non-primitive (ie object or array, which makes javascript look up the prototype chain) then set a value on that:

$scope.selected = {value: 0};

<a ng-click="selected.value = $index">A{{$index}}</a>

See plunker

or

Use the $parent variable to access the correct property. Though less recommended as it increases coupling between scopes

<a ng-click="$parent.selected = $index">A{{$index}}</a>

See plunker

command = "ls *"

def execute_state=sh(returnStdout: true, script: command)

but if the command failure the process will terminate

Here is my solution and it works as planned:

string errmsg = "ERROR : Wrong input";
ErrorLbl.Text = errmsg;

if (e.Handled = !(char.IsLetter(e.KeyChar) || e.KeyChar == (char)Keys.Back || e.KeyChar == (char)Keys.Space))
{
  ErrorLbl.Text = "ERROR : Wrong input";
}
else ErrorLbl.Text = string.Empty;
if (ErrorLbl.Text == errmsg)
{
  Nametxt.Text = string.Empty;
}

If your grep supports -R, do:

grep -R 'string' dir/

If not, then use find:

find dir/ -type f -exec grep -H 'string' {} +

You can use this:

var isEmpty = function(obj) {
  return Object.keys(obj).length === 0;
}

or this:

function isEmpty(obj) {
  return !Object.keys(obj).length > 0;
}

You can also use this:

function isEmpty(obj) {
  for(var prop in obj) {
    if(obj.hasOwnProperty(prop))
      return false;
  }

  return true;
}

If using underscore or jQuery, you can use their isEmpty or isEmptyObject calls.

The shortest way I know

min = tm.minute // 10 * 10

Where are you configuring your authenticated URL pattern(s)? I only see one uri in your code.

Do you have multiple configure(HttpSecurity) methods or just one? It looks like you need all your URIs in the one method.

I have a site which requires authentication to access everything so I want to protect /*. However in order to authenticate I obviously want to not protect /login. I also have static assets I'd like to allow access to (so I can make the login page pretty) and a healthcheck page that shouldn't require auth.

In addition I have a resource, /admin, which requires higher privledges than the rest of the site.

The following is working for me.

@Override
protected void configure(HttpSecurity http) throws Exception {

    http.authorizeRequests()
        .antMatchers("/login**").permitAll()
        .antMatchers("/healthcheck**").permitAll()
        .antMatchers("/static/**").permitAll()
        .antMatchers("/admin/**").access("hasRole('ROLE_ADMIN')")
        .antMatchers("/**").access("hasRole('ROLE_USER')")
        .and()
            .formLogin().loginPage("/login").failureUrl("/login?error")
                .usernameParameter("username").passwordParameter("password")
        .and()
            .logout().logoutSuccessUrl("/login?logout")
        .and()
            .exceptionHandling().accessDeniedPage("/403")
        .and()
            .csrf();

}

NOTE: This is a first match wins so you may need to play with the order. For example, I originally had /** first:

        .antMatchers("/**").access("hasRole('ROLE_USER')")
        .antMatchers("/login**").permitAll()
        .antMatchers("/healthcheck**").permitAll()

Which caused the site to continually redirect all requests for /login back to /login. Likewise I had /admin/** last:

        .antMatchers("/**").access("hasRole('ROLE_USER')")
        .antMatchers("/admin/**").access("hasRole('ROLE_ADMIN')")

Which resulted in my unprivledged test user "guest" having access to the admin interface (yikes!)

While many options above function well, I found coercion of non-target variables to chr problematic. Using ifelse and grepl within lapply resolves this off-target effect (in limited testing). Using slarky's regular expression in grepl:

set.seed(42)
x1 <- sample(c("a","b"," ", "a a", NA), 10, TRUE)
x2 <- sample(c(rnorm(length(x1),0, 1), NA), length(x1), TRUE)

df <- data.frame(x1, x2, stringsAsFactors = FALSE)

The problem of coercion to character class:

df2 <- lapply(df, function(x) gsub("^$|^ $", NA, x))
lapply(df2, class)

$x1 [1] "character"

$x2 [1] "character"

Resolution with use of ifelse:

df3 <- lapply(df, function(x) ifelse(grepl("^$|^ $", x)==TRUE, NA, x))
lapply(df3, class)

$x1 [1] "character"

$x2 [1] "numeric"

As of TypeScript 1.6, properties in object literals that do not have a corresponding property in the type they're being assigned to are flagged as errors.

Usually this error means you have a bug (typically a typo) in your code, or in the definition file. The right fix in this case would be to fix the typo. In the question, the property callbackOnLoactionHash is incorrect and should have been callbackOnLocationHash (note the mis-spelling of "Location").

This change also required some updates in definition files, so you should get the latest version of the .d.ts for any libraries you're using.

Example:

interface TextOptions {
    alignment?: string;
    color?: string;
    padding?: number;
}
function drawText(opts: TextOptions) { ... }
drawText({ align: 'center' }); // Error, no property 'align' in 'TextOptions'

But I meant to do that

There are a few cases where you may have intended to have extra properties in your object. Depending on what you're doing, there are several appropriate fixes

Type-checking only some properties

Sometimes you want to make sure a few things are present and of the correct type, but intend to have extra properties for whatever reason. Type assertions (<T>v or v as T) do not check for extra properties, so you can use them in place of a type annotation:

interface Options {
    x?: string;
    y?: number;
}

// Error, no property 'z' in 'Options'
let q1: Options = { x: 'foo', y: 32, z: 100 };
// OK
let q2 = { x: 'foo', y: 32, z: 100 } as Options;
// Still an error (good):
let q3 = { x: 100, y: 32, z: 100 } as Options;

These properties and maybe more

Some APIs take an object and dynamically iterate over its keys, but have 'special' keys that need to be of a certain type. Adding a string indexer to the type will disable extra property checking

Before

interface Model {
  name: string;
}
function createModel(x: Model) { ... }

// Error
createModel({name: 'hello', length: 100});

After

interface Model {
  name: string;
  [others: string]: any;
}
function createModel(x: Model) { ... }

// OK
createModel({name: 'hello', length: 100});

This is a dog or a cat or a horse, not sure yet

interface Animal { move; }
interface Dog extends Animal { woof; }
interface Cat extends Animal { meow; }
interface Horse extends Animal { neigh; }

let x: Animal;
if(...) {
  x = { move: 'doggy paddle', woof: 'bark' };
} else if(...) {
  x = { move: 'catwalk', meow: 'mrar' };
} else {
  x = { move: 'gallop', neigh: 'wilbur' };
}

Two good solutions come to mind here

Specify a closed set for x

// Removes all errors
let x: Dog|Cat|Horse;

or Type assert each thing

// For each initialization
  x = { move: 'doggy paddle', woof: 'bark' } as Dog;

This type is sometimes open and sometimes not

A clean solution to the "data model" problem using intersection types:

interface DataModelOptions {
  name?: string;
  id?: number;
}
interface UserProperties {
  [key: string]: any;
}
function createDataModel(model: DataModelOptions & UserProperties) {
 /* ... */
}
// findDataModel can only look up by name or id
function findDataModel(model: DataModelOptions) {
 /* ... */
}
// OK
createDataModel({name: 'my model', favoriteAnimal: 'cat' });
// Error, 'ID' is not correct (should be 'id')
findDataModel({ ID: 32 });

See also https://github.com/Microsoft/TypeScript/issues/3755

After creating your client specifying the binding and endpoint address, you can assign an OperationTimeout,

client.InnerChannel.OperationTimeout = new TimeSpan(0, 5, 0);

Well to obtain all different values in a Dataframe you can use distinct. As you can see in the documentation that method returns another DataFrame. After that you can create a UDF in order to transform each record.

For example:

val df = sc.parallelize(Array((1, 2), (3, 4), (1, 6))).toDF("age", "salary")

// I obtain all different values. If you show you must see only {1, 3}
val distinctValuesDF = df.select(df("age")).distinct

// Define your udf. In this case I defined a simple function, but they can get complicated.
val myTransformationUDF = udf(value => value / 10)

// Run that transformation "over" your DataFrame
val afterTransformationDF = distinctValuesDF.select(myTransformationUDF(col("age")))

SET STATISTICS TIME ON

select count(1) from MyTable (nolock) -- table containing 1 million records. 

SQL Server Execution Times:
CPU time = 31 ms, elapsed time = 36 ms.

select count(*) from MyTable (nolock) -- table containing 1 million records. 

SQL Server Execution Times:
CPU time = 46 ms, elapsed time = 37 ms.

I've ran this hundreds of times, clearing cache every time.. The results vary from time to time as server load varies, but almost always count(*) has higher cpu time.

record = int(input("Enter the student record need to add :"))

stud_data={}

for i in range(0,record):
    Name = input("Enter the student name :").split()
    Age = input("Enter the {} age :".format(Name))
    Grade = input("Enter the {} grade :".format(Name)).split()
    Nam_key =  Name[0]
    Age_value = Age[0]
    Grade_value = Grade[0]
    stud_data[Nam_key] = {Age_value,Grade_value}

print(stud_data)

I am not sure why no one has yet suggested bindToController which removes all these ugly scopes and $watches. If You are using Angular 1.4

Below is a sample DOM:

<div ng-app="app">
    <div ng-controller="MainCtrl as vm">
        {{ vm.name }}
        <foo-directive name="vm.name"></foo-directive>
        <button ng-click="vm.changeScopeValue()">
        changeScopeValue
        </button>
    </div>
</div>

Follows the controller code:

angular.module('app', []);

// main.js
function MainCtrl() {
    this.name = 'Vinoth Initial';
    this.changeScopeValue = function(){
        this.name = "Vinoth has Changed"
    }
}

angular
    .module('app')
    .controller('MainCtrl', MainCtrl);

// foo.js
function FooDirCtrl() {
}

function fooDirective() {
    return {
        restrict: 'E',
        scope: {
            name: '='
        },
        controller: 'FooDirCtrl',
        controllerAs: 'vm',
        template:'<div><input ng-model="name"></div>',
        bindToController: true
    };
}

angular
    .module('app')
    .directive('fooDirective', fooDirective)
    .controller('FooDirCtrl', FooDirCtrl);

A Fiddle to play around, here we are changing the scope value in the controller and automatically the directive updates on scope change. http://jsfiddle.net/spechackers/1ywL3fnq/

Instead of adding the changes you make to resolve the conflict, you can use git reset HEAD file to resolve the conflict without staging your changes.

You may have to run this command twice, however. Once to mark the conflict as resolved and once to unstage the changes that were staged by the conflict resolution routine.

It is possible that there should be a reset mode that does both of these things simultaneously, although there is not one now.

Possibly a ringbuffer is more suitable. It is not a list, although it is likely that it can behave enough like a list for your purposes.

The problem is that the efficiency of a shift on a list is O(n), which becomes significant for large enough lists.

Shifting in a ringbuffer is simply updating the head location which is O(1)

var dateOffset = (24*60*60*1000) * 5; //5 days
var myDate = new Date();
myDate.setTime(myDate.getTime() - dateOffset);

If you're performing lots of headachy date manipulation throughout your web application, DateJS will make your life much easier:

http://simonwillison.net/2007/Dec/3/datejs/

For PostgreSQL you have to use SERIAL instead of auto_increment.

ALTER TABLE your_table_name ADD COLUMN id SERIAL NOT NULL PRIMARY KEY

For any users having the same issue in 2017, I solved it the following way:

NavBar.contextTypes = {
    router: React.PropTypes.object,
    location: React.PropTypes.object
}

and use it like this:

componentDidMount () {
    console.log(this.context.location.pathname);
}

After downloading the two zip files related to Oracle 11G R2. Create a folder in some directory (For say "Oracle_11G_R2"). Extract both zip files into the same folder "Oracle_11G_R2". And run setup.exe file present inside /database/setup.exe. It should run correctly now.

Simply alter your table, no need to any thing. just run this query on database. ALTER TABLE table_nameCONVERT TO CHARACTER SET utf8

it will definately work.

Before using the $result variable, you should use $row = mysqli_fetch_array($result) or mysqli_fetch_assoc() functions.

Like this:

$row = mysqli_fetch_array($result);

and use the $row array as you need.

The typical way is as follows:

enum Foo {
  One,
  Two,
  Three,
  Last
};

for ( int fooInt = One; fooInt != Last; fooInt++ )
{
   Foo foo = static_cast<Foo>(fooInt);
   // ...
}

Please note, the enum Last is meant to be skipped by the iteration. Utilizing this "fake" Last enum, you don't have to update your terminating condition in the for loop to the last "real" enum each time you want to add a new enum. If you want to add more enums later, just add them before Last. The loop in this example will still work.

Of course, this breaks down if the enum values are specified:

enum Foo {
  One = 1,
  Two = 9,
  Three = 4,
  Last
};

This illustrates that an enum is not really meant to iterate through. The typical way to deal with an enum is to use it in a switch statement.

switch ( foo )
{
    case One:
        // ..
        break;
    case Two:  // intentional fall-through
    case Three:
        // ..
        break;
    case Four:
        // ..
        break;
     default:
        assert( ! "Invalid Foo enum value" );
        break;
}

If you really want to enumerate, stuff the enum values in a vector and iterate over that. This will properly deal with the specified enum values as well.

You want to convert html (a byte-like object) into a string using .decode, e.g. html = response.read().decode('utf-8').

See Convert bytes to a Python String

Thanks to great Mark Amery's answer I devised function to account for all possible ISO formats of datetime:

class FixedOffset(tzinfo):
    """Fixed offset in minutes: `time = utc_time + utc_offset`."""
    def __init__(self, offset):
        self.__offset = timedelta(minutes=offset)
        hours, minutes = divmod(offset, 60)
        #NOTE: the last part is to remind about deprecated POSIX GMT+h timezones
        #  that have the opposite sign in the name;
        #  the corresponding numeric value is not used e.g., no minutes
        self.__name = '<%+03d%02d>%+d' % (hours, minutes, -hours)
    def utcoffset(self, dt=None):
        return self.__offset
    def tzname(self, dt=None):
        return self.__name
    def dst(self, dt=None):
        return timedelta(0)
    def __repr__(self):
        return 'FixedOffset(%d)' % (self.utcoffset().total_seconds() / 60)
    def __getinitargs__(self):
        return (self.__offset.total_seconds()/60,)

def parse_isoformat_datetime(isodatetime):
    try:
        return datetime.strptime(isodatetime, '%Y-%m-%dT%H:%M:%S.%f')
    except ValueError:
        pass
    try:
        return datetime.strptime(isodatetime, '%Y-%m-%dT%H:%M:%S')
    except ValueError:
        pass
    pat = r'(.*?[+-]\d{2}):(\d{2})'
    temp = re.sub(pat, r'\1\2', isodatetime)
    naive_date_str = temp[:-5]
    offset_str = temp[-5:]
    naive_dt = datetime.strptime(naive_date_str, '%Y-%m-%dT%H:%M:%S.%f')
    offset = int(offset_str[-4:-2])*60 + int(offset_str[-2:])
    if offset_str[0] == "-":
        offset = -offset
    return naive_dt.replace(tzinfo=FixedOffset(offset))

This is because the content of

<p myHighlight>Highlight me!</p>

has not been rendered when the constructor of the HighlightDirective is called so there is no content yet.

If you implement the AfterContentInit hook you will get the element and its content.

import { Directive, ElementRef, AfterContentInit } from '@angular/core';

@Directive({ selector: '[myHighlight]' })

export class HighlightDirective {

    constructor(private el: ElementRef) {
        //el.nativeElement.style.backgroundColor = 'yellow';
    }

    ngAfterContentInit(){
        //you can get to the element content here 
        //this.el.nativeElement
    }
}

One more idea for anyone else getting this...

I had some gzipped svg, but it had a php error in the output, which caused this error message. (Because there was text in the middle of gzip binary.) Fixing the php error solved it.

Shared folder was earlier working for me but all f sudden it stopped working (Virualbox - host was Windows 7, Guest was OpenSuSe)

modprobe -a vboxguest vboxsf vboxvideo

then mount -t vboxsf testsf /opt/tsf (testsf was the folder in Windows C drive which was added in Virtualbox shared folder --- and /opt/tsf is the folder in OpenSuse

Whenever I have to do string manipulations in C#, I miss the good old Left and Right functions from Visual Basic, which are much simpler to use than Substring.

So in most of my C# projects, I create extension methods for them:

public static class StringExtensions
{
    public static string Left(this string str, int length)
    {
        return str.Substring(0, Math.Min(length, str.Length));
    }

    public static string Right(this string str, int length)
    {
        return str.Substring(str.Length - Math.Min(length, str.Length));
    }
}

Note:
The Math.Min part is there because Substring throws an ArgumentOutOfRangeException when the input string's length is smaller than the requested length, as already mentioned in some comments under previous answers.

Usage:

string longString = "Long String";

// returns "Long";
string left1 = longString.Left(4);

// returns "Long String";
string left2 = longString.Left(100);

The problem is most likely because you config custom UITableViewCell in storyboard but you do not use storyboard to instantiate your UITableViewController which uses this UITableViewCell. For example, in MainStoryboard, you have a UITableViewController subclass called MyTableViewController and have a custom dynamic UITableViewCell called MyTableViewCell with identifier id "MyCell".

If you create your custom UITableViewController like this:

 MyTableViewController *myTableViewController = [[MyTableViewController alloc] init];

It will not automatically register your custom tableviewcell for you. You have to manually register it.

But if you use storyboard to instantiate MyTableViewController, like this:

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
MyTableViewController *myTableViewController = [storyboard  instantiateViewControllerWithIdentifier:@"MyTableViewController"];

Nice thing happens! UITableViewController will automatically register your custom tableview cell that you define in storyboard for you.

In your delegate method "cellForRowAtIndexPath", you can create you table view cell like this :

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"MyCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];

//Configure your cell here ...

return cell;
}

dequeueReusableCellWithIdentifier will automatically create new cell for you if there is not reusable cell available in the recycling queue.

Then you are done!

if it is cluster MongoDB then you need to add your current IP to the cluster, to add your current IP address you need to complete few steps below-

step 1- go to login page of Mongodb and login with valid credential - https://cloud.mongodb.com/user#/atlas/login
step 2- CLick Network Access from left sidebar under Security Section
Step 3 - Click Add IP Address
Step 4 - Click Add Current IP Address or Allow Connection From Any Where
now try to connect - npm start

and for Local MongoDB use mongo String like "mongodb+srv://username:pass%[email protected]/test?retryWrites=true&w=majority"

password must be encoded like example string

Here is my shot for general use:

grep YOURSTRING `find .`

It will print the file name

The following works on all browsers for my 200 figures, for any width percentage -- despite being illegal. Jukka said 'Use it anyway.' (The class just floats the image left or right and sets margins.) I can't imagine why this isn't the standard approach!

<img class="fl" width="66%"
src="A-Images/0.5_Saltation.jpg"
alt="Schematic models of chromosomes ..." />

Change the window width and the image scales obligingly.

I had the following error message Port 80 in use by "Unable to open process" with PID 4! Apache WILL NOT start without the configured ports free! You need to uninstall/disable/reconfigure the blocking application or reconfigure Apache and the Control Panel to listen on a different port Starting Check-Timer Control Panel Ready

opened the httpd.conf and changed the listen port from 80 to 1234 in both places

Listen 12.34.56.78:1234

Listen 1234

Then go to Config for the xampp control panel and go to service and port setting and changed the port from 80 to 1234

That worked.

yu have to install the correct version for your computer 32 or 63 bits thats all

My short answer is:

function display_two_array {_x000D_
    local arr1=$1_x000D_
    local arr2=$2_x000D_
    for i in $arr1_x000D_
    do_x000D_
       "arrary1: $i"_x000D_
    done_x000D_
    _x000D_
    for i in $arr2_x000D_
    do_x000D_
       "arrary2: $i"_x000D_
    done_x000D_
}_x000D_
_x000D_
test_array=(1 2 3 4 5)_x000D_
test_array2=(7 8 9 10 11)_x000D_
_x000D_
display_two_array "${test_array[*]}" "${test_array2[*]}"

There's only one registered mediatype for SVG, and that's the one you listed, image/svg+xml. You can of course serve SVG as XML too, though browsers tend to behave differently in some scenarios if you do, for example I've seen cases where SVG used in CSS backgrounds fail to display unless served with the image/svg+xml mediatype.

   public class NonKeyboardEditText extends AppCompatEditText {

    public NonKeyboardEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    public boolean onCheckIsTextEditor() {
        return false;
    }
}

and add

NonKeyboardEditText.setTextIsSelectable(true);

It could depend on your framework. (for each of them could exist an easier solution).

But to answer your question: there are a lot of external libraries for this functionality. Look here how to use apache commons fileupload.

No. The compiler can't know what type jerry.callFriend("spike") would return. Also, your implementation just hides the cast in the method without any additional type safety. Consider this:

jerry.addFriend("quaker", new Duck());
jerry.callFriend("quaker", /* unused */ new Dog()); // dies with illegal cast

In this specific case, creating an abstract talk() method and overriding it appropriately in the subclasses would serve you much better:

Mouse jerry = new Mouse();
jerry.addFriend("spike", new Dog());
jerry.addFriend("quacker", new Duck());

jerry.callFriend("spike").talk();
jerry.callFriend("quacker").talk();

It's because you have turned on USB debugging in Developer Options. You can create a bug report by holding the power + both volume up and down.

Edit: This is what the forums say:

By pressing Volume up + Volume down + power button, you will feel a vibration after a second or so, that's when the bug reporting initiated.

To disable:

/system/bin/bugmailer.sh must be deleted/renamed.

There should be a folder on your SD card called "bug reports".

Have a look at this thread: http://forum.xda-developers.com/showthread.php?t=2252948

And this one: http://forum.xda-developers.com/showthread.php?t=1405639

You should open text files using rU so newlines are properly transformed, see http://docs.python.org/library/functions.html#open. This way there's no need to check for \r\n.

In terms of general architecture I would recommend the following structure with regard to directory creation. This will cover most potential issues and any other issues with directory creation will be detected by the dir.create call.

mainDir <- "~"
subDir <- "outputDirectory"

if (file.exists(paste(mainDir, subDir, "/", sep = "/", collapse = "/"))) {
    cat("subDir exists in mainDir and is a directory")
} else if (file.exists(paste(mainDir, subDir, sep = "/", collapse = "/"))) {
    cat("subDir exists in mainDir but is a file")
    # you will probably want to handle this separately
} else {
    cat("subDir does not exist in mainDir - creating")
    dir.create(file.path(mainDir, subDir))
}

if (file.exists(paste(mainDir, subDir, "/", sep = "/", collapse = "/"))) {
    # By this point, the directory either existed or has been successfully created
    setwd(file.path(mainDir, subDir))
} else {
    cat("subDir does not exist")
    # Handle this error as appropriate
}

Also be aware that if ~/foo doesn't exist then a call to dir.create('~/foo/bar') will fail unless you specify recursive = TRUE.

Unfortunately, the meaning of things like ( and \( are swapped between Emacs style regular expressions and most other styles. So if you try to escape these you may be doing the opposite of what you want.

So you really have to know what style you are trying to quote.

The best way to accomplish that is to use POST which is a method of Hypertext Transfer Protocol https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods

index.php

<html>
<body>

<form action="site2.php" method="post">
Name: <input type="text" name="name">
Email: <input type="text" name="email">
<input type="submit">
</form>

</body>
</html> 

site2.php

 <html>
 <body>

 Hello <?php echo $_POST["name"]; ?>!<br>
 Your mail is <?php echo $_POST["mail"]; ?>.

 </body>
 </html> 

output

Hello "name" !

Your email is "[email protected]" .

I use it in form of a meta box. Here is a function that dumps values of all the meta data for post.

    function dump_all_meta(){

        echo "<h3>All Post Meta</h3>";

        // Get all the data.
        $getPostCustom=get_post_custom();


        foreach( $getPostCustom as $name=>$value ) {

            echo "<strong>".$name."</strong>"."  =>  ";

            foreach($getPostCustom as $name=>$value) {

        echo "<strong>".$name."</strong>"."  =>  ";

        foreach($value as $nameAr=>$valueAr) {
                echo "<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";
                echo $nameAr."  =>  ";
                echo var_dump($valueAr);
        }

        echo "<br /><br />";

        }
    } // Callback funtion ended.

Hope it helps. You can use it inside a meta box or at the front-end.

This is what worked for me.

formaction="@Url.Action("Edit")"

Snippet :

 <input type="submit" formaction="@Url.Action("Edit")" formmethod="post" value="Save" class="btn btn-primary" />

<input type="submit" formaction="@Url.Action("PartialEdit")" formmethod="post" value="Select Type" class="btn btn-primary" />

 [HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Edit( Quote quote)
        {
           //code 
       }
 [HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult PartialEdit(Quote quote)
        {
           //code
        }

Might help some one who wants to have 2 different action methods instead of one method using selectors or using client scripts .

None of the answers worked for me, but this is what finally worked after I set:

android:fitsSystemWindows="false"

In parent activity layout file it's not suggested at many places but it's work for me and saves my day

You can change the code when you decompiled it, but it has to be recompiled to a class file, the decompiler outputs java code, this has to be recompiled with the same classpath as the original jar/class file

Here http://www.alteridem.net/2007/08/22/the-yield-statement-in-c/ is very good example:

public static IEnumerable<int> Range( int min, int max )
{
   while ( true )
   {
      if ( min >= max )
      {
         yield break;
      }
      yield return min++;
   }
}

and explanation, that if a yield break statement is hit within a method, execution of that method stops with no return. There are some time situations, when you don't want to give any result, then you can use yield break.

Method 1:

TelephonyManager tMgr = (TelephonyManager)mAppContext.getSystemService(Context.TELEPHONY_SERVICE);
String mPhoneNumber = tMgr.getLine1Number();

With below permission

<uses-permission android:name="android.permission.READ_PHONE_STATE"/>

Method 2:

There is another way you will be able to get your phone number, I haven't tested this on multiple devices but above code is not working every time.

Try below code:

String main_data[] = {"data1", "is_primary", "data3", "data2", "data1", "is_primary", "photo_uri", "mimetype"};
Object object = getContentResolver().query(Uri.withAppendedPath(android.provider.ContactsContract.Profile.CONTENT_URI, "data"),
        main_data, "mimetype=?",
        new String[]{"vnd.android.cursor.item/phone_v2"},
        "is_primary DESC");
if (object != null) {
    do {
        if (!((Cursor) (object)).moveToNext())
            break;
        String s1 = ((Cursor) (object)).getString(4);
    } while (true);
    ((Cursor) (object)).close();
}

You will need to add these two permissions.

<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.READ_PROFILE" />

Hope this helps, Thanks!

Merge byte arrays of multiple PDF files:

    public static byte[] MergePDFs(List<byte[]> pdfFiles)
    {  
        if (pdfFiles.Count > 1)
        {
            PdfReader finalPdf;
            Document pdfContainer;
            PdfWriter pdfCopy;
            MemoryStream msFinalPdf = new MemoryStream();

            finalPdf = new PdfReader(pdfFiles[0]);
            pdfContainer = new Document();
            pdfCopy = new PdfSmartCopy(pdfContainer, msFinalPdf);

            pdfContainer.Open();

            for (int k = 0; k < pdfFiles.Count; k++)
            {
                finalPdf = new PdfReader(pdfFiles[k]);
                for (int i = 1; i < finalPdf.NumberOfPages + 1; i++)
                {
                    ((PdfSmartCopy)pdfCopy).AddPage(pdfCopy.GetImportedPage(finalPdf, i));
                }
                pdfCopy.FreeReader(finalPdf);

            }
            finalPdf.Close();
            pdfCopy.Close();
            pdfContainer.Close();

            return msFinalPdf.ToArray();
        }
        else if (pdfFiles.Count == 1)
        {
            return pdfFiles[0];
        }
        return null;
    }

See this page: http://www.oracle.com/technetwork/articles/javase/index-140767.html

It has a slightly different pattern which is (I think) what you are looking for:

try {
  mutex.acquire();
  try {
    // do something
  } finally {
    mutex.release();
  }
} catch(InterruptedException ie) {
  // ...
}

In this usage, you're only calling release() after a successful acquire()

I too was facing the same issue. Both the answers (the most upvoted one and the accepted one) just give a temporary fix for the same.

Moreover, the config set stop-writes-on-bgsave-error no is a horrible way to over look this error, since what this option does is stop redis from notifying that writes have been stopped and to move on without writing the data in a snapshot. This is simply ignoring this error. Refer this

As for setting dir in config in redis-cli, once you restart the redis service, this shall get cleared too and the same error shall pop up again. The default value of dir in redis.conf is ./ , and if you start redis as root user, then ./ is / to which write permissions aren't granted, and hence the error.

The best way is to set the dir parameter in redis.conf file and set proper permissions to that directory. Most of the debian distributions shall have it in /etc/redis/redis.conf

Specify POST method in form
<form name="registrationform" action="register.php" method="post">


your form code

</form>

This question may be old, but for anybody in future that wants a simple way to achieve complex shadow effects check out my library here https://github.com/BluRe-CN/ComplexView

Using the library, you can change shadow colors, tweak edges and so much more. Here's an example to achieve what you seek for.

<com.blure.complexview.ComplexView
        android:layout_width="400dp"
        android:layout_height="600dp"
        app:radius="10dp"
        app:shadow="true"
        app:shadowSpread="2">

        <com.blure.complexview.ComplexView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:color="#fdfcfc"
            app:radius="10dp" />
    </com.blure.complexview.ComplexView>

To change the shadow color, use app:shadowColor="your color code".

I am using a function here in my case by which I am updating a label with the normal time format and after that I am storing the selected time's 24hr format to do some another tasks..

Here is my code...

func timeUpdate(sender: NSDate)
{
    let timeSave = NSDateFormatter() //Creating first object to update time label as 12hr format with AM/PM
    timeSave.timeStyle = NSDateFormatterStyle.ShortStyle //Setting the style for the time selection.
    self.TimeShowOutlet.text = timeSave.stringFromDate(sender) // Getting the string from the selected time and updating the label as 1:40 PM
    let timeCheck = NSDateFormatter() //Creating another object to store time in 24hr format.
    timeCheck.dateFormat = "HH:mm:ss" //Setting the format for the time save.
    let time = timeCheck.stringFromDate(sender) //Getting the time string as 13:40:00
    self.timeSelectedForCheckAvailability = time //At last saving the 24hr format time for further task.
}

After writing this function you can call this where you are choosing the time from date/time picker.

Thanks, Hope this helped.

Now there is the pandas_profiling package, which is a more complete alternative to df.describe().

If your pandas dataframe is df, the below will return a complete analysis including some warnings about missing values, skewness, etc. It presents histograms and correlation plots as well.

import pandas_profiling
pandas_profiling.ProfileReport(df)

See the example notebook detailing the usage.

If you have PHP installed as a command line tool (try issuing php to the terminal and see if it works), your shebang (#!) line needs to look like this:

#!/usr/bin/php

Put that at the top of your script, make it executable (chmod +x myscript.php), and make a Cron job to execute that script (same way you'd execute a bash script).

You can also use php myscript.php.

Login to Server as Admin

Go To Security > Logins > New Login

Step 1:

Login Name : SomeName

Step 2:

Select  SQL Server / Windows Authentication.

More Info on, what is the differences between sql server authentication and windows authentication..?

Choose Default DB and Language of your choice

Click OK

Try to connect with the New User Credentials, It will prompt you to change the password. Change and login

OR

Try with query :

USE [master] -- Default DB
GO

CREATE LOGIN [Username] WITH PASSWORD=N'123456', DEFAULT_DATABASE=[master], DEFAULT_LANGUAGE=[us_english], CHECK_EXPIRATION=ON, CHECK_POLICY=ON
GO

--123456 is the Password And Username is Login User 
ALTER LOGIN [Username] enable -- Enable or to Disable User
GO

While it isn't as elegant as pure CSS, a small bit of javascript can help accomplish this:

<html>
<head>
<style type='text/css'>
    div {
        border: 1px solid #000000;
    } 
</style>
<script type='text/javascript'>

    function expandToWindow(element) {
         var margin = 10; 

         if (element.style.height < window.innerHeight) { 
            element.style.height = window.innerHeight - (2 * margin) 
         }
    }


</script>
</head>
<body onload='expandToWindow(document.getElementById("content"));'>
<div id='content'>Hello World</div>
</body>
</html>

Why use a clumsy for loop with an index when you have the enhanced for loop?

private double calculateAverage(List <Integer> marks) {
  Integer sum = 0;
  if(!marks.isEmpty()) {
    for (Integer mark : marks) {
        sum += mark;
    }
    return sum.doubleValue() / marks.size();
  }
  return sum;
}

Activity is a context so if you can simply check the context is an Activity and cast it if necessary.

@Override
public void onAttach(Context context) {
    super.onAttach(context);

    Activity a;

    if (context instanceof Activity){
        a=(Activity) context;
    }

}

Update: Some are claiming that the new Context override is never called. I have done some tests and cannot find a scenario where this is true and according to the source code, it should never be true. In all cases I tested, both pre and post SDK23, both the Activity and the Context versions of onAttach were called. If you can find a scenario where this is not the case, I would suggest you create a sample project illustrating the issue and report it to the Android team.

Update 2: I only ever use the Android Support Library fragments as bugs get fixed faster there. It seems the above issue where the overrides do not get called correctly only comes to light if you use the framework fragments.

I had a similar issue when not using inline for my global function that was included in two places.

var myregexp = new RegExp(/ {2,}/g);

str = str.replace(myregexp,' ');

This error is due to more security features of gmail..

Once this error is generated...Please login to your gmail account..there you can find security alert from GOOGLE..follow the mail...check on click for less secure option..Then try again phpmailer..

if you want to write in column:

    for x in np.nditer(a.T, order='C'): 
            file.write(str(x))
            file.write("\n")

Here 'a' is the name of numpy array and 'file' is the variable to write in a file.

If you want to write in row:

    writer= csv.writer(file, delimiter=',')
    for x in np.nditer(a.T, order='C'): 
            row.append(str(x))
    writer.writerow(row)

Euler Path - An Euler path is a path in which each edge is traversed exactly once.

Hamiltonian Path - An Hamiltonian path is path in which each vertex is traversed exactly once.

If you have ever confusion remember E - Euler E - Edge.

You can use pseudo element to get the effect you want like I did in that Fiddle.

CSS:

.title a {
    display: block;
    width: 340px;
    height: 338px;
    color: black;
    position: relative;
}
.title a:after {
    background: url(https://lh3.googleusercontent.com/-p1nr1fkWKUo/T0zUp5CLO3I/AAAAAAAAAWg/jDiQ0cUBuKA/s800/red-pattern.png) repeat;
    content: "";
    opacity: 0;
    width: inherit;
    height: inherit;
    position: absolute;
    top: 0;
    left: 0;
    /* TRANSISITION */
    transition: opacity 1s ease-in-out;
    -webkit-transition: opacity 1s ease-in-out;
    -moz-transition: opacity 1s ease-in-out;
    -o-transition: opacity 1s ease-in-out;
}
.title a:hover:after{   
    opacity: 1;
}

HTML:

<div class="title">
    <a href="#">HYPERLINK</a>
</div>

You have strings in the list and you are comparing them with the number 100.0.

Read the Clipboard, check against the input and the time the input is "typed". If the Clipboard has the same text and it is too fast, delete the pasted input.

In cell A1, enter the time.
In cell B2, enter =A1+1/24

variable = id if variable.to_s.empty?

For PLSQL version 9.0.0.1601

1. From the context menu of the Table, choose "Edit Data"
2. Insert or edit the data
3. Post change

For anyone encountering this issue with Capistrano: capistrano isn't able to locate the bundler. The reason might be that you installed bundler under some other gemset where the Capistrano isn't even looking.

1. List your gemsets.

rvm gemset list

2. Use a particular gemset.

rvm use 'my_get_set'

3. Install bundler under that gemset.

gem install bundler

Then, try again with the deploy task.

Angular 5

html

<input type="file" #inputFile>

<button (click)="reset()">Reset</button>

template

@ViewChild('inputFile') myInputVariable: ElementRef;

reset() {
    this.myInputVariable.nativeElement.value = '';
}

Button is not required. You can reset it after change event, it is just for demonstration

This is what worked for me: https://github.com/bumptech/glide/wiki/Custom-targets#overriding-default-behavior

import com.bumptech.glide.Glide;
import com.bumptech.glide.request.transition.Transition;
import com.bumptech.glide.request.target.BitmapImageViewTarget;

...

Glide.with(yourFragment)
  .load("yourUrl")
  .asBitmap()
  .into(new BitmapImageViewTarget(yourImageView) {
    @Override
    public void onResourceReady(Bitmap bitmap, Transition<? super Bitmap> anim) {
        super.onResourceReady(bitmap, anim);
        Palette.generateAsync(bitmap, new Palette.PaletteAsyncListener() {  
            @Override
            public void onGenerated(Palette palette) {
                // Here's your generated palette
                Palette.Swatch swatch = palette.getDarkVibrantSwatch();
                int color = palette.getDarkVibrantColor(swatch.getTitleTextColor());
            }
        });
    }
});

Follow these steps- 1.go to config.inc.php file and find - $cfg['Servers'][$i]['auth_type']

2.change the value of $cfg['Servers'][$i]['auth_type'] to 'cookie' or 'http'.

3.find $cfg['Servers'][$i]['AllowNoPassword'] and change it's value to true.

Now whenever you want to login, enter root as your username,skip the password and go ahead pressing the submit button..

Note- if you choose authentication type as cookie then whenever you will close the browser and reopen it ,again you have to login.

from platform import python_version

print(python_version())

This will give you the exact version of python running your script. eg output:

3.6.5

You cannot set a maximum value (other than choosing a datatype which cannot hold large numbers, but there are none that have the limit you're asking for). You can check that with LAST_INSERT_ID() after inserting to get the id of the newly created member, and if it is too big handle it in your application code (e.g., delete and reject the member).

Why do you want an upper limit?

you can use "__range" for example :

from datetime import datetime
start_date=datetime(2009, 12, 30)
end_end=datetime(2020,12,30)
Sample.objects.filter(date__range=[start_date,end_date])

'print func(foo)' will print the return value of 'func' when called with 'foo'. 'shuffle' however has None as its return type, as the list will be modified in place, hence it prints nothing. Workaround:

# shuffle the list in place 
random.shuffle(b)

# print it
print(b)

If you're more into functional programming style you might want to make the following wrapper function:

def myshuffle(ls):
    random.shuffle(ls)
    return ls

My suggestion is: do not use activities at all, instead use fragments, and replace them in the container (Linear Layout for example) where you show your first fragment.

The code is available in Android Developer Tutorials, you just have to customize.

http://developer.android.com/training/implementing-navigation/nav-drawer.html

It is advisable that you should use more and more fragments in your application, and there should be only four basic activities local to your application, that you mention in your AndroidManifest.xml apart from the external ones (FacebookActivity for example):

1. SplashActivity: uses no fragment, and uses FullScreen theme.

2. LoginSignUpActivity: Do not require NavigationDrawer at all, and no back button as well, so simply use the normal toolbar, but at the least, 3 or 4 fragments will be required. Uses no-action-bar theme

3. HomeActivity or DashBoard Activity: Uses no-action-bar theme. Here you require Navigation drawer, also all the screens that follow will be fragments or nested fragments, till the leaf view, with the shared drawer. All the settings, user profile and etc. will be here as fragments, in this activity. The fragments here will not be added to the back stack and will be opened from the drawer menu items. In the case of fragments that require back button instead of the drawer, there is a fourth kind of activity below.

4. Activity without drawer. This activity has a back button on top and the fragments inside will be sharing the same action-bar. These fragments will be added to the back-stack, as there will be a navigation history.

[ For further guidance see: https://stackoverflow.com/a/51100507/787399 ]

Happy Coding !!

It's compiled to bytecode which can be used much, much, much faster.

The reason some files aren't compiled is that the main script, which you invoke with python main.py is recompiled every time you run the script. All imported scripts will be compiled and stored on the disk.

Important addition by Ben Blank:

It's worth noting that while running a compiled script has a faster startup time (as it doesn't need to be compiled), it doesn't run any faster.

I think you are confused between size() and length.

(1) The reason why size has a parentheses is because list's class is List and it is a class type. So List class can have method size().

(2) Array's type is int[], and it is a primitive type. So we can only use length

I don't see an obvious problem with the above.

It's possible your ldap.conf is being overridden, but the command-line options will take precedence, ldapsearch will ignore BINDDN in the main ldap.conf, so the only parameter that could be wrong is the URI. (The order is ETCDIR/ldap.conf then ~/ldaprc or ~/.ldaprc and then ldaprc in the current directory, though there environment variables which can influence this too, see man ldapconf.)

Try an explicit URI:

ldapsearch -x -W -D 'cn=Manager,dc=example,dc=com' -b "" -s base -H ldap://localhost

or prevent defaults with:

LDAPNOINIT=1 ldapsearch -x -W -D 'cn=Manager,dc=example,dc=com' -b "" -s base

If that doesn't work, then some troubleshooting (you'll probably need the full path to the slapd binary for these):

• make sure your slapd.conf is being used and is correct (as root)

  slapd -T test -f slapd.conf -d 65535

  You may have a left-over or default slapd.d configuration directory which takes preference over your slapd.conf (unless you specify your config explicitly with -f, slapd.conf is officially deprecated in OpenLDAP-2.4). If you don't get several pages of output then your binaries were built without debug support.

• stop OpenLDAP, then manually start slapd in a separate terminal/console with debug enabled (as root, ^C to quit)

  slapd -h ldap://localhost -d 481

  then retry the search and see if you can spot the problem (there will be a lot of schema noise in the start of the output unfortunately). (Note: running slapd without the -u/-g options can change file ownerships which can cause problems, you should usually use those options, probably -u ldap -g ldap )

• if debug is enabled, then try also

  ldapsearch -v -d 63 -W -D 'cn=Manager,dc=example,dc=com' -b "" -s base

Use =~

for regular expression check Regular Expressions Tutorial Table of Contents

I once tried to make a computer player for the game of Go, exclusively based on genetic programming. Each program would be treated as an evaluation function for a sequence of moves. The programs produced weren't very good though, even on a rather diminuitive 3x4 board.

I used Perl, and coded everything myself. I would do things differently today.

?

$('.price').blur(function () {
    var sum = 0;
    $('.price').each(function() {
        sum += Number($(this).val());
    });

    // here, you have your sum
});?????????

This would be eliminate the select query from running twice and be better for performance:

Declare @rate int

select 
    @rate = rate 
from 
    d_payment_index
where 
    fy = 2007
    and payment_year = 2008
    and program_id = 18

IF @@rowcount = 0
    Set @rate = 0

Select @rate 'rate'

Yes, Daniel is correct, but to expand upon his answer, your primary app component would need to have a navbar component within it. That way, when you render the primary app (any page under the '/' path), it would also display the navbar. I am guessing that you wouldn't want your login page to display the navbar, so that shouldn't be a nested component, and should instead be by itself. So your routes would end up looking something like this:

<Router>
  <Route path="/" component={App}>
    <Route path="page1" component={Page1} />
    <Route path="page2" component={Page2} />
  </Route>
  <Route path="/login" component={Login} />
</Router>

And the other components would look something like this:

var NavBar = React.createClass({
  render() {
    return (
      <div>
        <ul>
          <a onClick={() => history.push('page1') }>Page 1</a>
          <a onClick={() => history.push('page2') }>Page 2</a>
        </ul>
      </div>
    )
  }
});

var App = React.createClass({
  render() {
    return (
      <div>
        <NavBar />
        <div>Other Content</div>
        {this.props.children}
      </div>
    )
  }
});

You can define your own custom MarshalJSON and UnmarshalJSON methods and intentionally control what should be included, ex:

package main

import (
    "fmt"
    "encoding/json"
)

type User struct {
    name string
}

func (u *User) MarshalJSON() ([]byte, error) {
    return json.Marshal(&struct {
        Name     string `json:"name"`
    }{
        Name:     "customized" + u.name,
    })
}

func main() {
    user := &User{name: "Frank"}
    b, err := json.Marshal(user)
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Println(string(b))
}

Here's the best way I found:

    For Each row As DataRow In your_table.Rows
        For Each cell As String In row.ItemArray
            'do what you want!
        Next
    Next

To uninstalling existing MongoDB packages. I think this link will helpful.

There is no bidirectional map in the Java Standard API. Either you can maintain two maps yourself or use the BidiMap from Apache Collections.

Use chown to change ownership and chmod to change rights.

use the -R option to apply the rights for all files inside of a directory too.

Note that both these commands just work for directories too. The -R option makes them also change the permissions for all files and directories inside of the directory.

For example

sudo chown -R username:group directory

will change ownership (both user and group) of all files and directories inside of directory and directory itself.

sudo chown username:group directory

will only change the permission of the folder directory but will leave the files and folders inside the directory alone.

you need to use sudo to change the ownership from root to yourself.

Edit:

Note that if you use chown user: file (Note the left-out group), it will use the default group for that user.

Also You can change the group ownership of a file or directory with the command:

chgrp group_name file/directory_name

You must be a member of the group to which you are changing ownership to.

You can find group of file as follows

# ls -l file
-rw-r--r-- 1 root family 0 2012-05-22 20:03 file

# chown sujit:friends file

User 500 is just a normal user. Typically user 500 was the first user on the system, recent changes (to /etc/login.defs) has altered the minimum user id to 1000 in many distributions, so typically 1000 is now the first (non root) user.

What you may be seeing is a system which has been upgraded from the old state to the new state and still has some processes knocking about on uid 500. You can likely change it by first checking if your distro should indeed now use 1000, and if so alter the login.defs file yourself, the renumber the user account in /etc/passwd and chown/chgrp all their files, usually in /home/, then reboot.

But in answer to your question, no, you should not really be worried about this in all likelihood. It'll be showing as "500" instead of a username because o user in /etc/passwd has a uid set of 500, that's all.

Also you can show your current numbers using id i'm willing to bet it comes back as 1000 for you.

var isEven = function(number) {
    // Your code goes here!
    if (number % 2 == 0){
       return(true);
    }
    else{
       return(false);    
    }
};

A ListView is a specialized ListBox (that is, it inherits from ListBox). It allows you to specify different views rather than a straight list. You can either roll your own view, or use GridView (think explorer-like "details view"). It's basically the multi-column listbox, the cousin of windows form's listview.

If you don't need the additional capabilities of ListView, you can certainly use ListBox if you're simply showing a list of items (Even if the template is complex).

This works, as long as you remove the height attribute from the table.

<table id="content" border="0px" cellspacing="0px" cellpadding="0px">
  <tr><td height='9px' bgcolor="#990000">Upper</td></tr>
  <tr><td height='100px' bgcolor="#990099">Lower</td></tr>
</table>

This will do it:

my_hash.each_with_object({}) { |(key, value), hash| hash[key] = value.upcase }

As opposed to inject the advantage is that you are in no need to return the hash again inside the block.

In my system (Ubuntu 12.04) I found RESET QUERY CACHE and even restarting mysql server not enough. This was due to memory disc caching.
After each query, I clean the disc cache in the terminal:

sync && echo 3 | sudo tee /proc/sys/vm/drop_caches

and then reset the query cache in mysql client:

RESET QUERY CACHE;

Not Just HTML, Using atom-beautify - Package for Atom, you can format code for HTML, CSS, JavaScript, PHP, Python, Ruby, Java, C, C++, C#, Objective-C, CoffeeScript, TypeScript, Coldfusion, SQL, and more) in Atom within a matter of seconds.

To Install the atom-beautify package :

• Open Atom Editor.
• Press Ctrl+Shift+P (Cmd+Shift+P on mac), this will open the atom Command Palette.
• Search and click on Install Packages & Themes. A Install Package window comes up.
• Search for Beautify package, you will see a lot of beautify packages. Install any. I will recommend for atom-beautify.
• Now Restart atom and TADA! now you are ready for quick formatting.

To Format text Using atom-beautify :

• Go to the file you want to format.
• Hit Ctrl+Alt+B (Ctrl+Option+B on mac).
• Your file is formatted in seconds.

Sometimes above solutions doesn't work in macbook to get username n password.

IDK why?, here i got another solution.

$ git credential-osxkeychain get
host=github.com
protocol=https

this will revert username and password

Actually, the jQuery documentation has a more simple approach than the chained examples shown above (although they'll work just fine):

$("#myElement").unbind('mouseenter mouseleave');

As of jQuery 1.7, you are also able use $.on() and $.off() for event binding, so to unbind the hover event, you would use the simpler and tidier:

$('#myElement').off('hover');

The pseudo-event-name "hover" is used as a shorthand for "mouseenter mouseleave" but was handled differently in earlier jQuery versions; requiring you to expressly remove each of the literal event names. Using $.off() now allows you to drop both mouse events using the same shorthand.

Edit 2016:

Still a popular question so it's worth drawing attention to @Dennis98's point in the comments below that in jQuery 1.9+, the "hover" event was deprecated in favour of the standard "mouseenter mouseleave" calls. So your event binding declaration should now look like this:

$('#myElement').off('mouseenter mouseleave');

Use a .gitignore file. This allows you to ignore certain files. http://git-scm.com/docs/gitignore

Here's an example Eclipse one, which handles your classpath and project files: https://github.com/github/gitignore/blob/master/Global/Eclipse.gitignore

Use the built-in serializer in SQLAlchemy:

from sqlalchemy.ext.serializer import loads, dumps
obj = MyAlchemyObject()
# serialize object
serialized_obj = dumps(obj)

# deserialize object
obj = loads(serialized_obj)

If you're transferring the object between sessions, remember to detach the object from the current session using session.expunge(obj). To attach it again, just do session.add(obj).

I was in the same place as you, finally I found a neat answer :

<form action="xx/xx" method="POST">
  <input type="hidden" name="what you want" value="what you want">
  <input type="image" src="xx.xx">
</form>

Normally, I'm storngly against taking the most expensive and hardest to scale part of your infrastructure (the database) and putting all load into it. On the other hand: It greatly simplifies backup strategy, especially when you have multiple web servers and need to somehow keep the data synchronized.

Like most other things, It depends on the expected size and Budget.

If you don't want to create another migration-file for a small, recent change - from Rails Console:

ActiveRecord::Migration.change_column :profiles, :show_attribute, :boolean, :default => true

Then exit and re-enter rails console, so DB-Changes will be in-effect. Then, if you do this ...

Profile.new()

You should see the "show_attribute" default-value as true.

For existing records, if you want to preserve existing "false" settings and only update "nil" values to your new default:

Profile.all.each{|profile| profile.update_attributes(:show_attribute => (profile.show_attribute == nil ? true : false))  }

Update the migration that created this table, so any future builds of the DB will get it right from the onset. Also run the same process on any deployed-instances of the DB.

If using the "new db migration" method, you can do the update of existing nil-values in that migration.

Though the question asks inserting efficiently to Oracle using JDBC, I'm currently playing with DB2 (On IBM mainframe), conceptually inserting would be similar so thought it might be helpful to see my metrics between

• inserting one record at a time

• inserting a batch of records (very efficient)

Here go the metrics

1) Inserting one record at a time

public void writeWithCompileQuery(int records) {
    PreparedStatement statement;

    try {
        Connection connection = getDatabaseConnection();
        connection.setAutoCommit(true);

        String compiledQuery = "INSERT INTO TESTDB.EMPLOYEE(EMPNO, EMPNM, DEPT, RANK, USERNAME)" +
                " VALUES" + "(?, ?, ?, ?, ?)";
        statement = connection.prepareStatement(compiledQuery);

        long start = System.currentTimeMillis();

        for(int index = 1; index < records; index++) {
            statement.setInt(1, index);
            statement.setString(2, "emp number-"+index);
            statement.setInt(3, index);
            statement.setInt(4, index);
            statement.setString(5, "username");

            long startInternal = System.currentTimeMillis();
            statement.executeUpdate();
            System.out.println("each transaction time taken = " + (System.currentTimeMillis() - startInternal) + " ms");
        }

        long end = System.currentTimeMillis();
        System.out.println("total time taken = " + (end - start) + " ms");
        System.out.println("avg total time taken = " + (end - start)/ records + " ms");

        statement.close();
        connection.close();

    } catch (SQLException ex) {
        System.err.println("SQLException information");
        while (ex != null) {
            System.err.println("Error msg: " + ex.getMessage());
            ex = ex.getNextException();
        }
    }
}

The metrics for 100 transactions :

each transaction time taken = 123 ms
each transaction time taken = 53 ms
each transaction time taken = 48 ms
each transaction time taken = 48 ms
each transaction time taken = 49 ms
each transaction time taken = 49 ms
...
..
.
each transaction time taken = 49 ms
each transaction time taken = 49 ms
total time taken = 4935 ms
avg total time taken = 49 ms

The first transaction is taking around 120-150ms which is for the query parse and then execution, the subsequent transactions are only taking around 50ms. (Which is still high, but my database is on a different server(I need to troubleshoot the network))

2) With insertion in a batch (efficient one) - achieved by preparedStatement.executeBatch()

public int[] writeInABatchWithCompiledQuery(int records) {
    PreparedStatement preparedStatement;

    try {
        Connection connection = getDatabaseConnection();
        connection.setAutoCommit(true);

        String compiledQuery = "INSERT INTO TESTDB.EMPLOYEE(EMPNO, EMPNM, DEPT, RANK, USERNAME)" +
                " VALUES" + "(?, ?, ?, ?, ?)";
        preparedStatement = connection.prepareStatement(compiledQuery);

        for(int index = 1; index <= records; index++) {
            preparedStatement.setInt(1, index);
            preparedStatement.setString(2, "empo number-"+index);
            preparedStatement.setInt(3, index+100);
            preparedStatement.setInt(4, index+200);
            preparedStatement.setString(5, "usernames");
            preparedStatement.addBatch();
        }

        long start = System.currentTimeMillis();
        int[] inserted = preparedStatement.executeBatch();
        long end = System.currentTimeMillis();

        System.out.println("total time taken to insert the batch = " + (end - start) + " ms");
        System.out.println("total time taken = " + (end - start)/records + " s");

        preparedStatement.close();
        connection.close();

        return inserted;

    } catch (SQLException ex) {
        System.err.println("SQLException information");
        while (ex != null) {
            System.err.println("Error msg: " + ex.getMessage());
            ex = ex.getNextException();
        }
        throw new RuntimeException("Error");
    }
}

The metrics for a batch of 100 transactions is

total time taken to insert the batch = 127 ms

and for 1000 transactions

total time taken to insert the batch = 341 ms

So, making 100 transactions in ~5000ms (with one trxn at a time) is decreased to ~150ms (with a batch of 100 records).

NOTE - Ignore my network which is super slow, but the metrics values would be relative.

def func(*args): 
    pass

When you define a function this way, *args will be array of arguments passed to the function. This allows your function to work without knowing ahead of time how many arguments are going to be passed to it.

You do this with keyword arguments too, using **kwargs:

def func2(**kwargs): 
    pass

See: Arbitrary argument lists

In your case, you've defined a class which is acting like a dictionary. The dict.pop method is defined as pop(key[, default]).

Your method doesn't use the default parameter. But, by defining your method with *args and passing *args to dict.pop(), you are allowing the caller to use the default parameter.

In other words, you should be able to use your class's pop method like dict.pop:

my_a = a()
value1 = my_a.pop('key1')       # throw an exception if key1 isn't in the dict
value2 = my_a.pop('key2', None) # return None if key2 isn't in the dict

This is the one liner you're looking fo:

DateTime? d = DateTime.TryParse("some date text", out DateTime dt) ? dt : null;

If you want to make it a proper TryParse pseudo-extension method, you can do this:

public static bool TryParse(string text, out DateTime? dt)
{
    if (DateTime.TryParse(text, out DateTime date))
    {
        dt = date;
        return true;
    }
    else
    {
        dt = null;
        return false;
    }
}

In case you're using Gradle Kotlin syntax, you also can do:

tasks.taskName {
    environment(mapOf("A" to 1, "B" to "C"))
}

So for test task this would be:

tasks.test {
    environment(mapOf("SOME_TEST_VAR" to "aaa"))
}

To avoid getting the encryption error you can also try out below commands

ftp = ftplib.FTP_TLS("ftps.dummy.com")
ftp.login("username", "password")
ftp.prot_p()
file = open("filename", "rb")
ftp.storbinary("STOR filename", file)
file.close()
ftp.close()

ftp.prot_p() ensure that your connections are encrypted

If you want to copy file not using absolute path, relative path in other words:

Don't forget to write backslash in the path AND NOT slash

Example:

copy children-folder\file.something .\other-children-folder

PS: absolute path can be retrieved using these wildcards called "batch parameters"

@echo off
echo %%~dp0 is "%~dp0"
echo %%0 is "%0"
echo %%~dpnx0 is "%~dpnx0"
echo %%~f1 is "%~f1"
echo %%~dp0%%~1 is "%~dp0%~1"

Check documentation here about copy: https://technet.microsoft.com/en-us/library/bb490886.aspx

And also here for batch parameters documentation: https://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/percent.mspx?mfr=true

To piggyback on rkj's answer, to avoid endless prompts (and force the command recursively), enter the following into the command line, within the project folder:

$ rm -rf .git

Or to delete .gitignore and .gitmodules if any (via @aragaer):

$ rm -rf .git*

Then from the same ex-repository folder, to see if hidden folder .git is still there:

$ ls -lah

If it's not, then congratulations, you've deleted your local git repo, but not a remote one if you had it. You can delete GitHub repo on their site (github.com).

To view hidden folders in Finder (Mac OS X) execute these two commands in your terminal window:

defaults write com.apple.finder AppleShowAllFiles TRUE
killall Finder

Source: http://lifehacker.com/188892/show-hidden-files-in-finder.

If you're trying to perform a query like the following (find all the nodes with at least one attachment) where you've used a SELECT statement to create a new field which doesn't actually exist in the database, and try to use the alias for that result you'll run into the same problem:

SELECT nodes.*, (SELECT (COUNT(*) FROM attachments 
WHERE attachments.nodeid = nodes.id) AS attachmentcount 
FROM nodes
WHERE attachmentcount > 0;

You'll get an error "Unknown column 'attachmentcount' in WHERE clause".

Solution is actually fairly simple - just replace the alias with the statement which produces the alias, eg:

SELECT nodes.*, (SELECT (COUNT(*) FROM attachments 
WHERE attachments.nodeid = nodes.id) AS attachmentcount 
FROM nodes 
WHERE (SELECT (COUNT(*) FROM attachments WHERE attachments.nodeid = nodes.id) > 0;

You'll still get the alias returned, but now SQL shouldn't bork at the unknown alias.

It is a pretty old post, but I just had to do it today. I just right-clicked database from SQL2014 and selected Export Data option and that helped me to move data to SQL2012.

This issue is caused by the URL bars shrinking/sliding out of the way and changing the size of the #bg1 and #bg2 divs since they are 100% height and "fixed". Since the background image is set to "cover" it will adjust the image size/position as the containing area is larger.

Based on the responsive nature of the site, the background must scale. I entertain two possible solutions:

1) Set the #bg1, #bg2 height to 100vh. In theory, this an elegant solution. However, iOS has a vh bug (http://thatemil.com/blog/2013/06/13/viewport-relative-unit-strangeness-in-ios-6/). I attempted using a max-height to prevent the issue, but it remained.

2) The viewport size, when determined by Javascript, is not affected by the URL bar. Therefore, Javascript can be used to set a static height on the #bg1 and #bg2 based on the viewport size. This is not the best solution as it isn't pure CSS and there is a slight image jump on page load. However, it is the only viable solution I see considering iOS's "vh" bugs (which do not appear to be fixed in iOS 7).

var bg = $("#bg1, #bg2");

function resizeBackground() {
    bg.height($(window).height());
}

$(window).resize(resizeBackground);
resizeBackground();

On a side note, I've seen so many issues with these resizing URL bars in iOS and Android. I understand the purpose, but they really need to think through the strange functionality and havoc they bring to websites. The latest change, is you can no longer "hide" the URL bar on page load on iOS or Chrome using scroll tricks.

EDIT: While the above script works perfectly for keeping the background from resizing, it causes a noticeable gap when users scroll down. This is because it is keeping the background sized to 100% of the screen height minus the URL bar. If we add 60px to the height, as swiss suggests, this problem goes away. It does mean we don't get to see the bottom 60px of the background image when the URL bar is present, but it prevents users from ever seeing a gap.

function resizeBackground() {
    bg.height( $(window).height() + 60);
}

It's easy. Here is the full code.

from selenium import webdriver
driver = webdriver.Chrome()
driver.get("Your URL")
driver.set_window_size(480, 320)

Make sure chrome driver is in your system path.

With react-router v2.8.1 (probably other 2.x.x versions as well, but I haven't tested it) you can use this implementation to do a Router redirect.

import { Router } from 'react-router';

export default class Foo extends Component {

  static get contextTypes() {
    return {
      router: React.PropTypes.object.isRequired,
    };
  }

  handleClick() {
    this.context.router.push('/some-path');
  }
}

You can use the transpose function from the data.table library. Simple and fast solution that keeps numeric values as numeric.

library(data.table)

# get data
  data("mtcars")

# transpose
  t_mtcars <- transpose(mtcars)

# get row and colnames in order
  colnames(t_mtcars) <- rownames(mtcars)
  rownames(t_mtcars) <- colnames(mtcars)

The below recursive algorithm will run in O(log N) for a balanced binary tree. If either of the nodes passed into the getLCA() function are the same as the root then the root will be the LCA and there will be no need to perform any recussrion.

Test cases. [1] Both nodes n1 & n2 are in the tree and reside on either side of their parent node. [2] Either node n1 or n2 is the root, the LCA is the root. [3] Only n1 or n2 is in the tree, LCA will be either the root node of the left subtree of the tree root, or the LCA will be the root node of the right subtree of the tree root.

[4] Neither n1 or n2 is in the tree, there is no LCA. [5] Both n1 and n2 are in a straight line next to each other, LCA will be either of n1 or n2 which ever is closes to the root of the tree.

//find the search node below root
bool findNode(node* root, node* search)
{
    //base case
    if(root == NULL)
        return false;

    if(root->val == search->val)
        return true;

    //search for the node in the left and right subtrees, if found in either return true
    return (findNode(root->left, search) || findNode(root->right, search));
}

//returns the LCA, n1 & n2 are the 2 nodes for which we are
//establishing the LCA for
node* getLCA(node* root, node* n1, node* n2)
{
    //base case
    if(root == NULL)
        return NULL;

    //If 1 of the nodes is the root then the root is the LCA
    //no need to recurse.
    if(n1 == root || n2 == root)
        return root;

    //check on which side of the root n1 and n2 reside
    bool n1OnLeft = findNode(root->left, n1);
    bool n2OnLeft = findNode(root->left, n2);

    //n1 & n2 are on different sides of the root, so root is the LCA
    if(n1OnLeft != n2OnLeft)
        return root;

    //if both n1 & n2 are on the left of the root traverse left sub tree only
    //to find the node where n1 & n2 diverge otherwise traverse right subtree
    if(n1OnLeft)
        return getLCA(root->left, n1, n2);
    else
        return getLCA(root->right, n1, n2);
}

Assignment, at its heart, is two steps: tearing down the object's old state and building its new state as a copy of some other object's state.

Basically, that's what the destructor and the copy constructor do, so the first idea would be to delegate the work to them. However, since destruction mustn't fail, while construction might, we actually want to do it the other way around: first perform the constructive part and, if that succeeded, then do the destructive part. The copy-and-swap idiom is a way to do just that: It first calls a class' copy constructor to create a temporary object, then swaps its data with the temporary's, and then lets the temporary's destructor destroy the old state.
Since swap() is supposed to never fail, the only part which might fail is the copy-construction. That is performed first, and if it fails, nothing will be changed in the targeted object.

In its refined form, copy-and-swap is implemented by having the copy performed by initializing the (non-reference) parameter of the assignment operator:

T& operator=(T tmp)
{
    this->swap(tmp);
    return *this;
}

If there are no performance gains using a join, then I prefer Common Table Expressions (CTEs) for readability:

WITH subquery AS (
    SELECT address_id, customer, address, partn
    FROM  /* big hairy SQL */ ...
)
UPDATE dummy
SET customer = subquery.customer,
    address  = subquery.address,
    partn    = subquery.partn
FROM subquery
WHERE dummy.address_id = subquery.address_id;

IMHO a bit more modern.

The default Locale is constructed statically at runtime for your application process from the system property settings, so it will represent the Locale selected on that device when the application was launched. Typically, this is fine, but it does mean that if the user changes their Locale in settings after your application process is running, the value of getDefaultLocale() probably will not be immediately updated.

If you need to trap events like this for some reason in your application, you might instead try obtaining the Locale available from the resource Configuration object, i.e.

Locale current = getResources().getConfiguration().locale;

You may find that this value is updated more quickly after a settings change if that is necessary for your application.

If you're sure you configure your aws correctly, just make sure the user of the project can read from ./aws or just run your project as a root

As addition of good answers, You don't have to use [FromForm] to get form data in controller. Framework automatically convert form data to model as you wish. You can implement like following.

[HttpPost]
public async Task<IActionResult> Submit(MyModel model)
{
    //...
}

Not sure if this is what you're after, but it will loop through the range that you gave it and if it finds an "A" it will remove it from the cell. I'm not sure what oldStr is used for...

Private Sub foo()
Dim myString As String
RowCount = WorksheetFunction.CountA(Range("A:A"))

For i = 2 To RowCount
    myString = Trim(Cells(i, 1).Value)
    If InStr(myString, "A") > 0 Then
        Cells(i, 1).Value = Left(myString, InStr(myString, "A"))
    End If
Next
End Sub

To know the format string used by Excel without having to guess it: create an excel file, write a date in cell A1 and format it as you want. Then run the following lines:

FileInputStream fileIn = new FileInputStream("test.xlsx");
Workbook workbook = WorkbookFactory.create(fileIn);
CellStyle cellStyle = workbook.getSheetAt(0).getRow(0).getCell(0).getCellStyle();
String styleString = cellStyle.getDataFormatString();
System.out.println(styleString);

Then copy-paste the resulting string, remove the backslashes (for example d/m/yy\ h\.mm;@ becomes d/m/yy h.mm;@) and use it in the http://poi.apache.org/spreadsheet/quick-guide.html#CreateDateCells code:

CellStyle cellStyle = wb.createCellStyle();
CreationHelper createHelper = wb.getCreationHelper();
cellStyle.setDataFormat(createHelper.createDataFormat().getFormat("d/m/yy h.mm;@"));
cell = row.createCell(1);
cell.setCellValue(new Date());
cell.setCellStyle(cellStyle);

I've just gone through that process again. Always end up cloning the repo locally, upload the folder I want to have in that repo to that cloned location, commit the changes and then push it.

Note that if you're dealing with large files, you'll need to consider using something like Git LFS.

Finally i found the problem i was using metro framework and all your solutions will not work with metroTextBox, and all your solutions will work with normal textBox in load , show , visibility_change ,events, even the tab index = 0 is valid.

   // private void Form1_VisibleChanged(object sender, EventArgs e)
   // private void Form1__Shown(object sender, EventArgs e)
    private void Form1_Load(object sender, EventArgs e)
    {

        textBox1.Select();
        this.ActiveControl=textBox1;
        textBox1.Focus();
    }

On Mac, change shell to BASH (keep note that virtual env works only in bash shell )

[user@host tools]$. venv/bin/activate 

.: Command not found.

[user@host tools]$source venv/bin/activate

Badly placed ()'s.

[user@host tools]$bash

bash-3.2$ source venv/bin/activate

(venv) bash-3.2$ 

Bingo , it worked. See prompt changed.

On Ubuntu:

user@local_host:~/tools$ source toolsenv/bin/activate

(toolsenv) user@local_host~/tools$ 

Note : prompt changed

If you using RadAjaxManager then here is the code which helps:

RadAjaxManager1.ResponseScripts.Add("window.opener.location.href = '../CaseManagement/LCCase.aspx?" + caseId + "'; 
window.close();");

For CodeIgniter 4, use the following:

<?php    
    echo \CodeIgniter\CodeIgniter::CI_VERSION;
?>

I use this,

$request = (count($_REQUEST) > 1)?$_REQUEST:$_GET;

the statement validates if $_REQUEST has more than one parameter (the first parameter in $_REQUEST will be the request uri which can be used when needed, some PHP packages wont return $_GET so check if its more than 1 go for $_GET, By default, it will be $_POST.

Auto-incrementing the index in a loop:

myArr[(len(myArr)+1)]={"key":"val"}

The error is indeed fixed by inserting this with a type annotation as the first callback parameter. My attempt to do that was botched by simultaneously changing the callback into an arrow-function:

foo.on('error', (this: Foo, err: any) => { // DON'T DO THIS

It should've been this:

foo.on('error', function(this: Foo, err: any) {

or this:

foo.on('error', function(this: typeof foo, err: any) {

A GitHub issue was created to improve the compiler's error message and highlight the actual grammar error with this and arrow-functions.

Oracle 10g has functions that allow the use of POSIX-compliant regular expressions in SQL:

• REGEXP_LIKE
• REGEXP_REPLACE
• REGEXP_INSTR
• REGEXP_SUBSTR

See the Oracle Database SQL Reference for syntax details on this functions.

Take a look at Regular expressions in Perl with examples.

Code :

    select * from tbl where regexp_like(col, '^(ABC|XYZ|PQR)');

A maybe not-so-elegant method, which I think is just a variation of what some other people have said, is to just hardcode it. Many journals have a template that in some way allows for table footnotes, so I try to keep things pretty basic. Although, there really are some incredible packages already out there, and I think this thread does a good job of pointing that out.

\documentclass{article}
\begin{document}
\begin{table}[!th]
\renewcommand{\arraystretch}{1.3} % adds row cushion
\caption{Data, level$^a$, and sources$^b$}
\vspace{4mm}
\centering
\begin{tabular}{|l|l|c|c|}
  \hline      
  \textbf{Data}  & \textbf{Description}   & \textbf{Level} & \textbf{Source} \\
  \hline      
  \hline
  Data1  &  Description. . . . . . . . . . . . . . . . . .   &  cnty & USGS \\
  \hline
  Data2  &  Description. . . . . . . . . . . . . . . . . .   &  MSA & USGS \\
  \hline
  Data3  &  Description. . . . . . . . . . . . . . . . . .   &  cnty & Census  \\
  \hline  
\end{tabular}
\end{table}
\footnotesize{$^a$ The smallest spatial unit is county, $^b$ more details in appendix A}\\
\end{document}

The descriptor is how Python's property type is implemented. A descriptor simply implements __get__, __set__, etc. and is then added to another class in its definition (as you did above with the Temperature class). For example:

temp=Temperature()
temp.celsius #calls celsius.__get__

Accessing the property you assigned the descriptor to (celsius in the above example) calls the appropriate descriptor method.

instance in __get__ is the instance of the class (so above, __get__ would receive temp, while owner is the class with the descriptor (so it would be Temperature).

You need to use a descriptor class to encapsulate the logic that powers it. That way, if the descriptor is used to cache some expensive operation (for example), it could store the value on itself and not its class.

An article about descriptors can be found here.

EDIT: As jchl pointed out in the comments, if you simply try Temperature.celsius, instance will be None.

User johannes told you how to do add existing files to a Git repository in a general situation. Because you talk about Bitbucket, I suggest you do the following:

1. Create a new repository on Bitbucket (you can see a Create button on the top of your profile page) and you will go to this page:

   

2. Fill in the form, click next and then you automatically go to this page:

   

3. Choose to add existing files and you go to this page:

   

4. You use those commands and you upload the existing files to Bitbucket. After that, the files are online.

Bootstrap 3 has options to create toggle buttons based on checkboxes or radio buttons: http://getbootstrap.com/javascript/#buttons

Checkboxes

<div class="btn-group" data-toggle="buttons">
  <label class="btn btn-primary active">
    <input type="checkbox" checked> Option 1 (pre-checked)
  </label>
  <label class="btn btn-primary">
    <input type="checkbox"> Option 2
  </label>
  <label class="btn btn-primary">
    <input type="checkbox"> Option 3
  </label>
</div>

Radio buttons

<div class="btn-group" data-toggle="buttons">
  <label class="btn btn-primary active">
    <input type="radio" name="options" id="option1" checked> Option 1 (preselected)
  </label>
  <label class="btn btn-primary">
    <input type="radio" name="options" id="option2"> Option 2
  </label>
  <label class="btn btn-primary">
    <input type="radio" name="options" id="option3"> Option 3
  </label>
</div>

For these to work you must initialize .btns with Bootstrap's Javascript:

$('.btn').button();

Floats are used to store a wider range of number than can be fit in an integer. These include decimal numbers and scientific notation style numbers that can be bigger values than can fit in 32 bits. Here's the deep dive into them: http://en.wikipedia.org/wiki/Floating_point

Just use the array of options, to see, which option is currently selected.

$options = array( 'one', 'two', 'three' );

$output = '';
for( $i=0; $i<count($options); $i++ ) {
  $output .= '<option ' 
             . ( $_GET['sel'] == $options[$i] ? 'selected="selected"' : '' ) . '>' 
             . $options[$i] 
             . '</option>';
}

_{Sidenote: I would define a value to be some kind of id for each element, else you may run into problems, when two options have the same string representation.}

If you have an application that takes slower to bootstrap, it could be related to the initial values of the readiness/liveness probes. I solved my problem by increasing the value of initialDelaySeconds to 120s as my SpringBoot application deals with a lot of initialization. The documentation does not mention the default 0 (https://kubernetes.io/docs/api-reference/v1.9/#probe-v1-core)

service:
  livenessProbe:
    httpGet:
      path: /health/local
      scheme: HTTP
      port: 8888
    initialDelaySeconds: 120
    periodSeconds: 5
    timeoutSeconds: 5
    failureThreshold: 10
  readinessProbe:
    httpGet:
      path: /admin/health
      scheme: HTTP
      port: 8642
    initialDelaySeconds: 150
    periodSeconds: 5
    timeoutSeconds: 5
    failureThreshold: 10

A very good explanation about those values is given by What is the default value of initialDelaySeconds.

The health or readiness check algorithm works like:

1. wait for initialDelaySeconds
2. perform check and wait timeoutSeconds for a timeout if the number of continued successes is greater than successThreshold return success
3. if the number of continued failures is greater than failureThreshold return failure otherwise wait periodSeconds and start a new check

In my case, my application can now bootstrap in a very clear way, so that I know I will not get periodic crashloopbackoff because sometimes it would be on the limit of those rates.

I have found another way of forcing re-run CI builds and other triggers:

1. Run git commit --amend --no-edit without any changes. This will recreate the last commit in the current branch.
2. git push --force-with-lease origin pr-branch.

JOIN t2 ON t1.id=t2.id AND t1.date=t2.date

I have found this simpler way - Phantom dependencies + Npm

sudo apt-get update
sudo apt-get install build-essential chrpath libssl-dev libxft-dev
sudo apt-get install libfreetype6 libfreetype6-dev
sudo apt-get install libfontconfig1 libfontconfig1-dev

and npm

[sudo] npm install -g phantomjs

Done.

The shortcut is:

Windows/English Ctrl+Shift+\

Windows/German Ctrl+Shift+^

Thats how it works stored procedures run in order, you don't need begin just something like

exec dbo.sp1
exec dbo.sp2

I found a simple way to detect this :

   scrollView.getViewTreeObserver()
       .addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener() {
            @Override
            public void onScrollChanged() {
                if (scrollView.getChildAt(0).getBottom()
                     <= (scrollView.getHeight() + scrollView.getScrollY())) {
                    //scroll view is at bottom
                } else {
                    //scroll view is not at bottom
                }
            }
        });

• Doesn't need to custom ScrollView.
• Scrollview can host only one direct child, so scrollView.getChildAt(0) is okay.
• This solution is right even the height of direct child of scroll view is match_parent or wrap_content.

I wanted to do something similar, except setting the number to NaN rather than removing it from the data, since if you remove it you change the length which can mess up plotting (i.e. if you're only removing outliers from one column in a table, but you need it to remain the same as the other columns so you can plot them against each other).

To do so I used numpy's masking functions:

def reject_outliers(data, m=2):
    stdev = np.std(data)
    mean = np.mean(data)
    maskMin = mean - stdev * m
    maskMax = mean + stdev * m
    mask = np.ma.masked_outside(data, maskMin, maskMax)
    print('Masking values outside of {} and {}'.format(maskMin, maskMax))
    return mask

#!/bin/bash
kernel="2.6.39";
distro="xyz";

cat > /etc/myconfig.conf << EOL
line 1, ${kernel}
line 2,
line 3, ${distro}
line 4
line ...
EOL

this does what you want.

What I believe is this:

Cohesion refers to the degree to which the elements of a module/class belong together, it is suggested that the related code should be close to each other, so we should strive for high cohesion and bind all related code together as close as possible. It has to do with the elements within the module/class.

Coupling refers to the degree to which the different modules/classes depend on each other, it is suggested that all modules should be independent as far as possible, that's why low coupling. It has to do with the elements among different modules/classes.

To visualize the whole picture will be helpful:

The screenshot was taken from Coursera.

try this. this will work on both Firefox and chrome.

<input type="text" value="test" autofocus="autofocus" onfocus="this.select()">

I know this is an old question, but I wanted to add ServiceCapture to the list, for those who may come across this.

I've been using ServiceCapture for about 4 years and love it. It's not free, but it is a great tool and not very expensive. If you debug a lot of Flash or AJAX apps it is invaluable.

Try this set of code to download a CSV file from the server.

byte[] Content= File.ReadAllBytes(FilePath); //missing ;
Response.ContentType = "text/csv";
Response.AddHeader("content-disposition", "attachment; filename=" + fileName + ".csv");
Response.BufferOutput = true;
Response.OutputStream.Write(Content, 0, Content.Length);
Response.End();

Use merge, which is inner join by default:

pd.merge(df1, df2, left_index=True, right_index=True)

Or join, which is left join by default:

df1.join(df2)

Or concat, which is outer join by default:

pd.concat([df1, df2], axis=1)

Samples:

df1 = pd.DataFrame({'a':range(6),
                    'b':[5,3,6,9,2,4]}, index=list('abcdef'))

print (df1)
   a  b
a  0  5
b  1  3
c  2  6
d  3  9
e  4  2
f  5  4

df2 = pd.DataFrame({'c':range(4),
                    'd':[10,20,30, 40]}, index=list('abhi'))

print (df2)
   c   d
a  0  10
b  1  20
h  2  30
i  3  40

#default inner join
df3 = pd.merge(df1, df2, left_index=True, right_index=True)
print (df3)
   a  b  c   d
a  0  5  0  10
b  1  3  1  20

#default left join
df4 = df1.join(df2)
print (df4)
   a  b    c     d
a  0  5  0.0  10.0
b  1  3  1.0  20.0
c  2  6  NaN   NaN
d  3  9  NaN   NaN
e  4  2  NaN   NaN
f  5  4  NaN   NaN

#default outer join
df5 = pd.concat([df1, df2], axis=1)
print (df5)
     a    b    c     d
a  0.0  5.0  0.0  10.0
b  1.0  3.0  1.0  20.0
c  2.0  6.0  NaN   NaN
d  3.0  9.0  NaN   NaN
e  4.0  2.0  NaN   NaN
f  5.0  4.0  NaN   NaN
h  NaN  NaN  2.0  30.0
i  NaN  NaN  3.0  40.0

I'd do something like this:

( myString != null && myString.length() > 0 )
    ? doSomething() : System.out.println("Non valid String");

• Testing for null checks whether myString contains an instance of String.
• length() returns the length and is equivalent to equals("").
• Checking if myString is null first will avoid a NullPointerException.

Use linq and set the data table as Enumerable and select the fields from the data table field that matches what you are looking for.

Example

I want to get the currency Id and currency Name from the currency table where currency is local currency, and assign the currency id and name to a text boxes on the form:

DataTable dt = curData.loadCurrency();
            var curId = from c in dt.AsEnumerable()
                        where c.Field<bool>("LocalCurrency") == true
                        select c.Field<int>("CURID");

            foreach (int cid in curId)
            {
                txtCURID.Text = cid.ToString();
            }
            var curName = from c in dt.AsEnumerable()
                          where c.Field<bool>("LocalCurrency") == true
                          select c.Field<string>("CurName");
            foreach (string cName in curName)
            {
                txtCurrency.Text = cName.ToString();
            }

Depending on why you are doing this, using a std::set might be a better idea than std::vector.

It allows each element to occur only once. If you add it multiple times, there will only be one instance to erase anyway. This will make the erase operation trivial. The erase operation will also have lower time complexity than on the vector, however, adding elements is slower on the set so it might not be much of an advantage.

This of course won't work if you are interested in how many times an element has been added to your vector or the order the elements were added.

Swift 3 :

tableView.beginUpdates()
tableView.reloadRows(at: [indexPath], with: .automatic)
tableView.endUpdates()

body {
    background: url(images/image_name.jpg) no-repeat center center fixed; 
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
}

Here is a good solution to get your image to cover the full area of the web app perfectly

I found this sample in Apache's Quickstart Guide. It's for version 4.5:

/**
 * Example how to use multipart/form encoded POST request.
 */
public class ClientMultipartFormPost {

    public static void main(String[] args) throws Exception {
        if (args.length != 1)  {
            System.out.println("File path not given");
            System.exit(1);
        }
        CloseableHttpClient httpclient = HttpClients.createDefault();
        try {
            HttpPost httppost = new HttpPost("http://localhost:8080" +
                    "/servlets-examples/servlet/RequestInfoExample");

            FileBody bin = new FileBody(new File(args[0]));
            StringBody comment = new StringBody("A binary file of some kind", ContentType.TEXT_PLAIN);

            HttpEntity reqEntity = MultipartEntityBuilder.create()
                    .addPart("bin", bin)
                    .addPart("comment", comment)
                    .build();


            httppost.setEntity(reqEntity);

            System.out.println("executing request " + httppost.getRequestLine());
            CloseableHttpResponse response = httpclient.execute(httppost);
            try {
                System.out.println("----------------------------------------");
                System.out.println(response.getStatusLine());
                HttpEntity resEntity = response.getEntity();
                if (resEntity != null) {
                    System.out.println("Response content length: " + resEntity.getContentLength());
                }
                EntityUtils.consume(resEntity);
            } finally {
                response.close();
            }
        } finally {
            httpclient.close();
        }
    }
}

Try MySQL Maestro. Works great for me.

The full list is:

DB, DW, DD, DQ, DT, DDQ, and DO (used to declare initialized data in the output file.)

See: http://www.tortall.net/projects/yasm/manual/html/nasm-pseudop.html

They can be invoked in a wide range of ways: (Note: for Visual-Studio - use "h" instead of "0x" syntax - eg: not 0x55 but 55h instead):

    db      0x55                ; just the byte 0x55
    db      0x55,0x56,0x57      ; three bytes in succession
    db      'a',0x55            ; character constants are OK
    db      'hello',13,10,'$'   ; so are string constants
    dw      0x1234              ; 0x34 0x12
    dw      'A'                 ; 0x41 0x00 (it's just a number)
    dw      'AB'                ; 0x41 0x42 (character constant)
    dw      'ABC'               ; 0x41 0x42 0x43 0x00 (string)
    dd      0x12345678          ; 0x78 0x56 0x34 0x12
    dq      0x1122334455667788  ; 0x88 0x77 0x66 0x55 0x44 0x33 0x22 0x11
    ddq     0x112233445566778899aabbccddeeff00
    ; 0x00 0xff 0xee 0xdd 0xcc 0xbb 0xaa 0x99
    ; 0x88 0x77 0x66 0x55 0x44 0x33 0x22 0x11
    do      0x112233445566778899aabbccddeeff00 ; same as previous
    dd      1.234567e20         ; floating-point constant
    dq      1.234567e20         ; double-precision float
    dt      1.234567e20         ; extended-precision float

DT does not accept numeric constants as operands, and DDQ does not accept float constants as operands. Any size larger than DD does not accept strings as operands.