**EDITED for Swift 4.2:

As @Koen commented, swift 4.2 allows:

guard let self = self else {
   return // Could not get a strong reference for self :`(
}

// Now self is a strong reference
self.doSomething()

P.S.: Since I am having some up-votes, I would like to recommend the reading about escaping closures.

EDITED: As @tim-vermeulen has commented, Chris Lattner said on Fri Jan 22 19:51:29 CST 2016, this trick should not be used on self, so please don't use it. Check the non escaping closures info and the capture list answer from @gbk.**

guard let `self` = self else {
   return
}
self.doSomething()

For Ubuntu you cane make use of KDESVN integrated with Nautilus to five a Tortoise SVN Feel.

Try this ClickOffline.com : Ubuntu alternatives for Tortoise SVN

Just run into the same problem and was the database returning the values as strings.

I use this as a workaround:

$a = array(
    'id' => $row['id'] * 1,
    'another' => ...,
    'ananother' => ...,
);
$json = json_encode($a);

That is multiplying the value by 1 to cast it into a number

Hope that helps someone

' Create The Object
Set FSO = CreateObject("Scripting.FileSystemObject")

' How To Write To A File
Set File = FSO.CreateTextFile("C:\foo\bar.txt",True)
File.Write "Example String"
File.Close

' How To Read From A File
Set File = FSO.OpenTextFile("C:\foo\bar.txt")
Do Until File.AtEndOfStream
    Line = File.ReadLine
    WScript.Echo(Line)
Loop
File.Close

' Another Method For Reading From A File
Set File = FSO.OpenTextFile("C:\foo\bar.txt")
Set Text = File.ReadAll
WScript.Echo(Text)
File.Close

dplyr package does this with count/tally commands, or the n() function:

First, some data:

df <- data.frame(x = rep(1:6, rep(c(1, 2, 3), 2)), year = 1993:2004, month = c(1, 1:11))

Now the count:

library(dplyr)
count(df, year, month)
#piping
df %>% count(year, month)

We can also use a slightly longer version with piping and the n() function:

df %>% 
  group_by(year, month) %>%
  summarise(number = n())

or the tally function:

df %>% 
  group_by(year, month) %>%
  tally()

I fixed this issue for a password field i have like this:

Set the input type to text instead of password

Remove the input text value with jQuery

Convert the input type to password with jQuery

<input type="text" class="remove-autofill">

$('.js-remove-autofill').val('');    
$('.js-remove-autofill').attr('type', 'password');

m.str("");

seems to work.

I got this error when loading '|' separated CSV file although there were no '"' characters in my input file. It turned out that I forgot to specify FORMAT:

COPY ... FROM ... WITH (FORMAT CSV, DELIMITER '|').

I've tried to make a synthesis of all solutions and created a [ButtenHandler] attribute that makes it easy to handle multiple buttons on a form.

I've described it on CodeProject Multiple parameterized (localizable) form buttons in ASP.NET MVC.

To handle the simple case of this button:

<button type="submit" name="AddDepartment">Add Department</button>

You'll have something like the following action method:

[ButtonHandler()]
public ActionResult AddDepartment(Company model)
{
    model.Departments.Add(new Department());
    return View(model);
}

Notice how the name of the button matches the name of the action method. The article also describes how to have buttons with values and buttons with indexes.

What you're looking for is

<input type="text" [(ngModel)]="mymodel" (keyup)="valuechange()" />
{{mymodel}}

Then do whatever you want with the data by accessing the bound this.mymodel in your .ts file.

I think the easiest way to return a row with the maximum value is by getting its index. argmax() can be used to return the index of the row with the largest value.

index = df.Value.argmax()

Now the index could be used to get the features for that particular row:

df.iloc[df.Value.argmax(), 0:2]

You can use the util library that comes with nodejs to get a promise from the exec command and can use that output as you need. Use restructuring to store the stdout and stderr in variables.

const util = require('util');
const exec = util.promisify(require('child_process').exec);

async function lsExample() {
  const {
    stdout,
    stderr
  } = await exec('ls');
  console.log('stdout:', stdout);
  console.error('stderr:', stderr);
}
lsExample();

If you are using a console application and you are pumping messages, can't you use the WM_QUIT message?

Don't know (as for now) why, but this one helped:

   @media print {
        html, body {
            border: 1px solid white;
            height: 99%;
            page-break-after: avoid;
            page-break-before: avoid;
        }
    }

Hope someone will save his hair while fighting with the problem... ;)

This is because of the proxy settings. I also had the same problem, under which I could not use any of the modules which were fetching data from the internet. There are simple steps to follow:
1. open the control panel
2. open internet options
3. under connection tab open LAN settings
4. go to advance settings and unmark everything, delete every proxy in there. Or u can just unmark the checkbox in proxy server this will also do the same
5. save all the settings by clicking ok.
you are done. try to run the programme again, it must work it worked for me at least

The most likely place to find this sort of information is in the event viewer (under Administrative tools in XP or run eventvwr) This is where most services log warnings errors etc.

Here's an example of posting to a web service using the HttpWebRequest and HttpWebResponse objects.

StringBuilder sb = new StringBuilder();
    string query = "?q=" + latitude + "%2C" + longitude + "&format=xml&key=xxxxxxxxxxxxxxxxxxxxxxxx";
    string weatherservice = "http://api.worldweatheronline.com/free/v1/marine.ashx" + query;
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(weatherservice);
    request.Referer = "http://www.yourdomain.com";
    HttpWebResponse response = (HttpWebResponse)request.GetResponse();
    Stream stream = response.GetResponseStream();
    StreamReader reader = new StreamReader(stream);
    Char[] readBuffer = new Char[256];
    int count = reader.Read(readBuffer, 0, 256);

    while (count > 0)
    {
        String output = new String(readBuffer, 0, count);
        sb.Append(output);
        count = reader.Read(readBuffer, 0, 256);
    }
    string xml = sb.ToString();

You model the time function to calculate Fib(n) as sum of time to calculate Fib(n-1) plus the time to calculate Fib(n-2) plus the time to add them together (O(1)). This is assuming that repeated evaluations of the same Fib(n) take the same time - i.e. no memoization is use.

T(n<=1) = O(1)

T(n) = T(n-1) + T(n-2) + O(1)

You solve this recurrence relation (using generating functions, for instance) and you'll end up with the answer.

Alternatively, you can draw the recursion tree, which will have depth n and intuitively figure out that this function is asymptotically O(2n). You can then prove your conjecture by induction.

Base: n = 1 is obvious

Assume T(n-1) = O(2n-1), therefore

T(n) = T(n-1) + T(n-2) + O(1) which is equal to

T(n) = O(2n-1) + O(2n-2) + O(1) = O(2n)

However, as noted in a comment, this is not the tight bound. An interesting fact about this function is that the T(n) is asymptotically the same as the value of Fib(n) since both are defined as

f(n) = f(n-1) + f(n-2).

The leaves of the recursion tree will always return 1. The value of Fib(n) is sum of all values returned by the leaves in the recursion tree which is equal to the count of leaves. Since each leaf will take O(1) to compute, T(n) is equal to Fib(n) x O(1). Consequently, the tight bound for this function is the Fibonacci sequence itself (~?(1.6n)). You can find out this tight bound by using generating functions as I'd mentioned above.

very vague ....

id bung it into a dataset simply so that i can output it easily as xml ....

failing that why not iterate through its row and column collections and output them?

Pretty simple...you could put all of them in a cell using the concatenate function:

=CONCATENATE(A1, ", ", A2, ", ", and so on)

(1) Is it possible to pass a JSON object to the url like in Ex.2?

No, because http://localhost:8080/api/v1/mno/objectKey/{"id":1, "name":"Saif"} is not a valid URL.

If you want to do it the RESTful way, use http://localhost:8080/api/v1/mno/objectKey/1/Saif, and defined your method like this:

@RequestMapping(path = "/mno/objectKey/{id}/{name}", method = RequestMethod.GET)
public Book getBook(@PathVariable int id, @PathVariable String name) {
    // code here
}

(2) How can we pass and parse the parameters in Ex.1?

Just add two request parameters, and give the correct path.

@RequestMapping(path = "/mno/objectKey", method = RequestMethod.GET)
public Book getBook(@RequestParam int id, @RequestParam String name) {
    // code here
}

UPDATE (from comment)

What if we have a complicated parameter structure ?

"A": [ {
    "B": 37181,
    "timestamp": 1160100436,
    "categories": [ {
        "categoryID": 2653,
        "timestamp": 1158555774
    }, {
        "categoryID": 4453,
        "timestamp": 1158555774
    } ]
} ]

Send that as a POST with the JSON data in the request body, not in the URL, and specify a content type of application/json.

@RequestMapping(path = "/mno/objectKey", method = RequestMethod.POST, consumes = "application/json")
public Book getBook(@RequestBody ObjectKey objectKey) {
    // code here
}

public List<DealsCategory> DealCategory { get; set; }
int categoryid = Convert.ToInt16(dealsModel.DealCategory.Select(x => x.Id));

Use StreamReader and direct it to detect the encoding for you:

using (var reader = new System.IO.StreamReader(path, true))
{
    var currentEncoding = reader.CurrentEncoding;
}

And use Code Page Identifiers https://msdn.microsoft.com/en-us/library/windows/desktop/dd317756(v=vs.85).aspx in order to switch logic depending on it.

To read a whole line from a file into a string, use std::getline like so:

 std::ifstream file("my_file");
 std::string temp;
 std::getline(file, temp);

You can do this in a loop to until the end of the file like so:

 std::ifstream file("my_file");
 std::string temp;
 while(std::getline(file, temp)) {
      //Do with temp
 }

References

http://en.cppreference.com/w/cpp/string/basic_string/getline

http://en.cppreference.com/w/cpp/string/basic_string

I had similar issue and no errors shown in Compilation. I have tried to clean and rebuild without any success. I managed to find the issue by using Invalidate Caches/Restart from file Menu, after the restart I managed to see the compilation error.

Feedback Guys, first create database example live; before execute sql file below.

sqlcmd -U SA -P yourPassword -S YourHost -d live -i live.sql

I found this function on a blog

 ggplotRegression <- function (fit) {

    `require(ggplot2)

    ggplot(fit$model, aes_string(x = names(fit$model)[2], y = names(fit$model)[1])) + 
      geom_point() +
      stat_smooth(method = "lm", col = "red") +
      labs(title = paste("Adj R2 = ",signif(summary(fit)$adj.r.squared, 5),
                         "Intercept =",signif(fit$coef[[1]],5 ),
                         " Slope =",signif(fit$coef[[2]], 5),
                         " P =",signif(summary(fit)$coef[2,4], 5)))
    }`

once you loaded the function you could simply

ggplotRegression(fit)

you can also go for ggplotregression( y ~ x + z + Q, data)

Hope this helps.

There are two times when you can update a record through a view:

1. If the view has no joins or procedure calls and selects data from a single underlying table.
2. If the view has an INSTEAD OF INSERT trigger associated with the view.

Generally, you should not rely on being able to perform an insert to a view unless you have specifically written an INSTEAD OF trigger for it. Be aware, there are also INSTEAD OF UPDATE triggers that can be written as well to help perform updates.

max-width is definitely not well supported. If you're going to use it, use it in a media query in your style tag. ios, android, and windows phone default mail all support them. (gmail and outlook mobile don't)

http://www.campaignmonitor.com/guides/mobile/targeting/

Look at the starbucks example at the bottom

Jonathan from the ExcelCentral forums suggests:

=WEEKNUM(A1,2)-WEEKNUM(DATE(YEAR(A1),MONTH(A1),1),2)+1 

This formula extracts the week of the year [...] and then subtracts it from the week of the first day in the month to get the week of the month. You can change the day that weeks begin by changing the second argument of both WEEKNUM functions (set to 2 [for Monday] in the above example). For weeks beginning on Sunday, use:

=WEEKNUM(A1,1)-WEEKNUM(DATE(YEAR(A1),MONTH(A1),1),1)+1

For weeks beginning on Tuesday, use:

=WEEKNUM(A1,12)-WEEKNUM(DATE(YEAR(A1),MONTH(A1),1),12)+1

etc.

I like it better because it's using the built in week calculation functionality of Excel (WEEKNUM).

You can list only packages in the virtualenv by pip freeze --local or pip list --local. This option works irrespective of whether you have global site packages visible in the virtualenv.

Note that restricting the virtualenv to not use global site packages isn't the answer to the problem, because the question is on how to separate the two lists, not how to constrain our workflow to fit limitations of tools.

Credits to @gvalkov's comment here. Cf. also this issue.

Okay, first a few terms slightly oversimplified.

In git, a tag (like many other things) is what's called a treeish. It's a way of referring to a point in in the history of the project. Treeishes can be a tag, a commit, a date specifier, an ordinal specifier or many other things.

Now a branch is just like a tag but is movable. When you are "on" a branch and make a commit, the branch is moved to the new commit you made indicating it's current position.

Your HEAD is pointer to a branch which is considered "current". Usually when you clone a repository, HEAD will point to master which in turn will point to a commit. When you then do something like git checkout experimental, you switch the HEAD to point to the experimental branch which might point to a different commit.

Now the explanation.

When you do a git checkout v2.0, you are switching to a commit that is not pointed to by a branch. The HEAD is now "detached" and not pointing to a branch. If you decide to make a commit now (as you may), there's no branch pointer to update to track this commit. Switching back to another commit will make you lose this new commit you've made. That's what the message is telling you.

Usually, what you can do is to say git checkout -b v2.0-fixes v2.0. This will create a new branch pointer at the commit pointed to by the treeish v2.0 (a tag in this case) and then shift your HEAD to point to that. Now, if you make commits, it will be possible to track them (using the v2.0-fixes branch) and you can work like you usually would. There's nothing "wrong" with what you've done especially if you just want to take a look at the v2.0 code. If however, you want to make any alterations there which you want to track, you'll need a branch.

You should spend some time understanding the whole DAG model of git. It's surprisingly simple and makes all the commands quite clear.

To extend answers above, you cannot use Guid default value with Guid.Empty as an optional argument in method, indexer or delegate definition, because it will give you compile time error. Use default(Guid) or new Guid() instead.

If you use a TCPServer, UDPServer or their subclasses in the SocketServer module, you can set this class variable (before instanciating a server):

SocketServer.TCPServer.allow_reuse_address = True

(via SocketServer.ThreadingTCPServer - Cannot bind to address after program restart )

This causes the init (constructor) to:

 if self.allow_reuse_address:
     self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

That is called a shebang, it tells the shell what program to interpret the script with, when executed.

In your example, the script is to be interpreted and run by the bash shell.

Some other example shebangs are:

(From Wikipedia)

#!/bin/sh — Execute the file using sh, the Bourne shell, or a compatible shell
#!/bin/csh — Execute the file using csh, the C shell, or a compatible shell
#!/usr/bin/perl -T — Execute using Perl with the option for taint checks
#!/usr/bin/php — Execute the file using the PHP command line interpreter
#!/usr/bin/python -O — Execute using Python with optimizations to code
#!/usr/bin/ruby — Execute using Ruby

and a few additional ones I can think off the top of my head, such as:

#!/bin/ksh
#!/bin/awk
#!/bin/expect

In a script with the bash shebang, for example, you would write your code with bash syntax; whereas in a script with expect shebang, you would code it in expect syntax, and so on.

Response to updated portion:

It depends on what /bin/sh actually points to on your system. Often it is just a symlink to /bin/bash. Sometimes portable scripts are written with #!/bin/sh just to signify that it's a shell script, but it uses whichever shell is referred to by /bin/sh on that particular system (maybe it points to /bin/bash, /bin/ksh or /bin/zsh)

Try this: (Completely Dynamic...)

<?php
$host    = "localhost";
$user    = "username_here";
$pass    = "password_here";
$db_name = "database_name_here";

//create connection
$connection = mysqli_connect($host, $user, $pass, $db_name);

//test if connection failed
if(mysqli_connect_errno()){
    die("connection failed: "
        . mysqli_connect_error()
        . " (" . mysqli_connect_errno()
        . ")");
}

//get results from database
$result = mysqli_query($connection,"SELECT * FROM products");
$all_property = array();  //declare an array for saving property

//showing property
echo '<table class="data-table">
        <tr class="data-heading">';  //initialize table tag
while ($property = mysqli_fetch_field($result)) {
    echo '<td>' . $property->name . '</td>';  //get field name for header
    array_push($all_property, $property->name);  //save those to array
}
echo '</tr>'; //end tr tag

//showing all data
while ($row = mysqli_fetch_array($result)) {
    echo "<tr>";
    foreach ($all_property as $item) {
        echo '<td>' . $row[$item] . '</td>'; //get items using property value
    }
    echo '</tr>';
}
echo "</table>";
?>

If you want to make it center then use android:layout_centerVertical="true" in the TextView.

set timing on <br>
set linesize 180<br>
spool template.log

/*<br>
##########################################################################<br>
-- Name : Template.sql<br>
-- Date             : (sysdate) <br>
-- Author           :   Duncan van der Zalm - dvdzalm<br>
-- Company          :   stanDaarD-Z.nl<br>
-- Purpose          :   <br>
-- Usage        sqlplus <br>
-- Impact   :<br>
-- Required grants  :   sel on A, upd on B, drop on C<br>
-- Called by        :   some other process<br
##########################################################################<br>
-- ver  user    date        change  <br>
-- 1.0  DDZ 20110622    initial<br>
##########################################################################<br>
*/<br>

sho user<br>

select name from v$database;

select to_char(sysdate, 'Day DD Month yyyy HH24:MI:SS') "Start time"
from dual
;


-- script


select to_char(sysdate, 'Day DD Month yyyy HH24:MI:SS') "End time"
from dual
;

spool off

Just add a div around the container so it looks like:

<div style="background: red;">
  <div class="container marketing">
    <h2 style="padding-top: 60px;"></h2>
  </div>
</div>

iCalendar was based on a vCalendar and Outlook 2007 handles both formats well so it doesn't really matters which one you choose.

I'm not sure if this stands for Outlook 2003. I guess you should give it a try.

Outlook's default calendar format is iCalendar (*.ics)

If you don't want to modify the dataframe, you could use a custom formatter for that column.

import pandas as pd
pd.options.display.float_format = '${:,.2f}'.format
df = pd.DataFrame([123.4567, 234.5678, 345.6789, 456.7890],
                  index=['foo','bar','baz','quux'],
                  columns=['cost'])


print df.to_string(formatters={'cost':'${:,.2f}'.format})

yields

        cost
foo  $123.46
bar  $234.57
baz  $345.68
quux $456.79

More recent answer with an example, which uses React.useState

Keeping the state in the parent component is the recommended way. The parent needs to have an access to it as it manages it across two children components. Moving it to the global state, like the one managed by Redux, is not recommended for same same reason why global variable is worse than local in general in software engineering.

When the state is in the parent component, the child can mutate it if the parent gives the child value and onChange handler in props (sometimes it is called value link or state link pattern). Here is how you would do it with hooks:

function Parent() {
    var [state, setState] = React.useState('initial input value');
    return <>
        <Child1 value={state} onChange={(v) => setState(v)} />
        <Child2 value={state}>
    </>
}

function Child1(props) {
    return <input
        value={props.value}
        onChange={e => props.onChange(e.target.value)}
    />
}

function Child2(props) {
    return <p>Content of the state {props.value}</p>
}

The whole parent component will re-render on input change in the child, which might be not an issue if the parent component is small / fast to re-render. The re-render performance of the parent component still can be an issue in the general case (for example large forms). This is solved problem in your case (see below).

State link pattern and no parent re-render are easier to implement using the 3rd party library, like Hookstate - supercharged React.useState to cover variety of use cases, including your's one. (Disclaimer: I am an author of the project).

Here is how it would look like with Hookstate. Child1 will change the input, Child2 will react to it. Parent will hold the state but will not re-render on state change, only Child1 and Child2 will.

import { useStateLink } from '@hookstate/core';

function Parent() {
    var state = useStateLink('initial input value');
    return <>
        <Child1 state={state} />
        <Child2 state={state}>
    </>
}

function Child1(props) {
    // to avoid parent re-render use local state,
    // could use `props.state` instead of `state` below instead
    var state = useStateLink(props.state)
    return <input
        value={state.get()}
        onChange={e => state.set(e.target.value)}
    />
}

function Child2(props) {
    // to avoid parent re-render use local state,
    // could use `props.state` instead of `state` below instead
    var state = useStateLink(props.state)
    return <p>Content of the state {state.get()}</p>
}

PS: there are many more examples here covering similar and more complicated scenarios, including deeply nested data, state validation, global state with setState hook, etc. There is also complete sample application online, which uses the Hookstate and the technique explained above.

/*

If your delimiters are slash-based, escape it:

\/*

* means "0 or more of the previous repeatable pattern", which can be a single character, a character class or a group.

Blue forrest makes for a very good dark theme, because it has appealing blues with yellows and greens mixed in. Highly recommended.

http://www.decodified.com/misc/2011/06/15/blueforest-a-dark-color-scheme-for-intellij-idea.html

If you have several threads executing the methods m1 and m2 in the code below:

class SomeClass {
    private int i = 0;

    public void m1() { i = 5; }
    public int m2() { return i; }
}

you have the guarantee that any thread calling m2 will either read 0 or 5.

On the other hand, with this code (where i is a long):

class SomeClass {
    private long i = 0;

    public void m1() { i = 1234567890L; }
    public long m2() { return i; }
}

a thread calling m2 could read 0, 1234567890L, or some other random value because the statement i = 1234567890L is not guaranteed to be atomic for a long (a JVM could write the first 32 bits and the last 32 bits in two operations and a thread might observe i in between).

In cPanel search for php, You will find "Select PHP version" under Software.

Software -> Select PHP Version -> Switch to Php Options -> Change Value -> save.

New way of doing this would be using ShareCompat.IntentBuilder like so:

// Create and fire off our Intent in one fell swoop
ShareCompat.IntentBuilder
        // getActivity() or activity field if within Fragment
        .from(this) 
        // The text that will be shared
        .setText(textToShare)
        // most general text sharing MIME type
        .setType("text/plain") 
        .setStream(uriToContentThatMatchesTheArgumentOfSetType)
        /*
         * [OPTIONAL] Designate a URI to share. Your type that 
         * is set above will have to match the type of data
         * that your designating with this URI. Not sure
         * exactly what happens if you don't do that, but 
         * let's not find out.
         * 
         * For example, to share an image, you'd do the following:
         *     File imageFile = ...;
         *     Uri uriToImage = ...; // Convert the File to URI
         *     Intent shareImage = ShareCompat.IntentBuilder.from(activity)
         *       .setType("image/png")
         *       .setStream(uriToImage)
         *       .getIntent();
         */
        .setEmailTo(arrayOfStringEmailAddresses)
        .setEmailTo(singleStringEmailAddress)
        /*
         * [OPTIONAL] Designate the email recipients as an array
         * of Strings or a single String
         */ 
        .setEmailTo(arrayOfStringEmailAddresses)
        .setEmailTo(singleStringEmailAddress)
        /*
         * [OPTIONAL] Designate the email addresses that will be 
         * BCC'd on an email as an array of Strings or a single String
         */ 
        .addEmailBcc(arrayOfStringEmailAddresses)
        .addEmailBcc(singleStringEmailAddress)
        /* 
         * The title of the chooser that the system will show
         * to allow the user to select an app
         */
        .setChooserTitle(yourChooserTitle)
        .startChooser();

If you have any more questions about using ShareCompat, I highly recommend this great article from Ian Lake, an Android Developer Advocate at Google, for a more complete breakdown of the API. As you'll notice, I borrowed some of this example from that article.

If that article doesn't answer all of your questions, there is always the Javadoc itself for ShareCompat.IntentBuilder on the Android Developers website. I added more to this example of the API's usage on the basis of clemantiano's comment.

First of all select report file with rdlc extension and then go to View > Report Data

In order to get the value of the selected item you can do the following:

this.options[this.selectedIndex].text

Here the different options of the select are accessed, and the SelectedIndex is used to choose the selected one, then its text is being accessed.

Read more about the select DOM here.

Using the double-pointer is by far the best compromise between execution speed/optimisation and legibility. Using a single array to store matrix' contents is actually what a double-pointer does.

I have successfully used the following templated creator function (yes, I know I use old C-style pointer referencing, but it does make code more clear on the calling side with regards to changing parameters - something I like about pointers which is not possible with references. You will see what I mean):

///
/// Matrix Allocator Utility
/// @param pppArray Pointer to the double-pointer where the matrix should be allocated.
/// @param iRows Number of rows.
/// @param iColumns Number of columns.
/// @return Successful allocation returns true, else false.
template <typename T>
bool NewMatrix(T*** pppArray, 
               size_t iRows, 
               size_t iColumns)
{
   bool l_bResult = false;
   if (pppArray != 0) // Test if pointer holds a valid address.
   {                  // I prefer using the shorter 0 in stead of NULL.
      if (!((*pppArray) != 0)) // Test if the first element is currently unassigned.
      {                        // The "double-not" evaluates a little quicker in general.
         // Allocate and assign pointer array.
         (*pppArray) = new T* [iRows]; 
         if ((*pppArray) != 0) // Test if pointer-array allocation was successful.
         {
            // Allocate and assign common data storage array.
            (*pppArray)[0] = new T [iRows * iColumns]; 
            if ((*pppArray)[0] != 0) // Test if data array allocation was successful.
            {
               // Using pointer arithmetic requires the least overhead. There is no 
               // expensive repeated multiplication involved and very little additional 
               // memory is used for temporary variables.
               T** l_ppRow = (*pppArray);
               T* l_pRowFirstElement = l_ppRow[0];
               for (size_t l_iRow = 1; l_iRow < iRows; l_iRow++)
               {
                  l_ppRow++;
                  l_pRowFirstElement += iColumns;
                  l_ppRow[0] = l_pRowFirstElement;
               }
               l_bResult = true;
            }
         }
      }
   }
}

To de-allocate the memory created using the abovementioned utility, one simply has to de-allocate in reverse.

///
/// Matrix De-Allocator Utility
/// @param pppArray Pointer to the double-pointer where the matrix should be de-allocated.
/// @return Successful de-allocation returns true, else false.
template <typename T>
bool DeleteMatrix(T*** pppArray)
{
   bool l_bResult = false;
   if (pppArray != 0) // Test if pointer holds a valid address.
   {
      if ((*pppArray) != 0) // Test if pointer array was assigned.
      {
         if ((*pppArray)[0] != 0) // Test if data array was assigned.
         {
               // De-allocate common storage array.
               delete [] (*pppArray)[0];
            }
         }
         // De-allocate pointer array.
         delete [] (*pppArray);
         (*pppArray) = 0;
         l_bResult = true;
      }
   }
}

To use these abovementioned template functions is then very easy (e.g.):

   .
   .
   .
   double l_ppMatrix = 0;
   NewMatrix(&l_ppMatrix, 3, 3); // Create a 3 x 3 Matrix and store it in l_ppMatrix.
   .
   .
   .
   DeleteMatrix(&l_ppMatrix);

Given your edit i assume you have the class name as a string and want to instantiate the class? Just use a dictionary as a dispatcher.

class Foo(object):
    pass

class Bar(object):
    pass

dispatch_dict = {"Foo": Foo, "Bar": Bar}
dispatch_dict["Foo"]() # returns an instance of Foo

I think the best option is:

1. Create a model class as config schema

2. Register in DI: services.Configure(Configuration.GetSection("democonfig"));

3. Get the values as model object from DI in your controller:

   private readonly your_model myConfig;
   public DemoController(IOptions<your_model> configOps)
   {
       this.myConfig = configOps.Value;
   }
   

Bootstrap has it's own centering class named text-center.

<div class="span7 text-center"></div>

With Git 2.15 (Q4 2017), "git branch" learned "-c/-C" to create a new branch by copying an existing one.

See commit c8b2cec (18 Jun 2017) by Ævar Arnfjörð Bjarmason (avar).
See commit 52d59cc, commit 5463caa (18 Jun 2017) by Sahil Dua (sahildua2305).
^{(Merged by Junio C Hamano -- gitster -- in commit 3b48045, 03 Oct 2017)}

branch: add a --copy (-c) option to go with --move (-m)

Add the ability to --copy a branch and its reflog and configuration, this uses the same underlying machinery as the --move (-m) option except the reflog and configuration is copied instead of being moved.

This is useful for e.g. copying a topic branch to a new version, e.g. work to work-2 after submitting the work topic to the list, while preserving all the tracking info and other configuration that goes with the branch, and unlike --move keeping the other already-submitted branch around for reference.

Note: when copying a branch, you remain on your current branch.
As Junio C Hamano explains, the initial implementation of this new feature was modifying HEAD, which was not good:

When creating a new branch B by copying the branch A that happens to be the current branch, it also updates HEAD to point at the new branch.
It probably was made this way because "git branch -c A B" piggybacked its implementation on "git branch -m A B",

This does not match the usual expectation.
If I were sitting on a blue chair, and somebody comes and repaints it to red, I would accept ending up sitting on a chair that is now red (I am also OK to stand, instead, as there no longer is my favourite blue chair).

But if somebody creates a new red chair, modelling it after the blue chair I am sitting on, I do not expect to be booted off of the blue chair and ending up on sitting on the new red one.

if (x) 

coerces x using JavaScript's internal toBoolean (http://es5.github.com/#x9.2)

x == false

coerces both sides using internal toNumber coercion (http://es5.github.com/#x9.3) or toPrimitive for objects (http://es5.github.com/#x9.1)

For full details see http://javascriptweblog.wordpress.com/2011/02/07/truth-equality-and-javascript/

1. Where does user.id go after passport.serializeUser has been called?

The user id (you provide as the second argument of the done function) is saved in the session and is later used to retrieve the whole object via the deserializeUser function.

serializeUser determines which data of the user object should be stored in the session. The result of the serializeUser method is attached to the session as req.session.passport.user = {}. Here for instance, it would be (as we provide the user id as the key) req.session.passport.user = {id: 'xyz'}

2. We are calling passport.deserializeUser right after it where does it fit in the workflow?

The first argument of deserializeUser corresponds to the key of the user object that was given to the done function (see 1.). So your whole object is retrieved with help of that key. That key here is the user id (key can be any key of the user object i.e. name,email etc). In deserializeUser that key is matched with the in memory array / database or any data resource.

The fetched object is attached to the request object as req.user

Visual Flow

passport.serializeUser(function(user, done) {
    done(null, user.id);
});              ¦
                 ¦ 
                 ¦
                 +--------------------? saved to session
                                   ¦    req.session.passport.user = {id: '..'}
                                   ¦
                                   ?           
passport.deserializeUser(function(id, done) {
                   +---------------+
                   ¦
                   ? 
    User.findById(id, function(err, user) {
        done(err, user);
    });            +--------------? user object attaches to the request as req.user   
});

Extension for Swift 2

A more general solution is the following extension, which works with Swift 2 & iOS 9:

extension Double {
    /// Rounds the double to decimal places value
    func roundToPlaces(places:Int) -> Double {
        let divisor = pow(10.0, Double(places))
        return round(self * divisor) / divisor
    }
}

Extension for Swift 3

In Swift 3 round is replaced by rounded:

extension Double {
    /// Rounds the double to decimal places value
    func rounded(toPlaces places:Int) -> Double {
        let divisor = pow(10.0, Double(places))
        return (self * divisor).rounded() / divisor
    }
}

Example which returns Double rounded to 4 decimal places:

let x = Double(0.123456789).roundToPlaces(4)  // x becomes 0.1235 under Swift 2
let x = Double(0.123456789).rounded(toPlaces: 4)  // Swift 3 version

When you COUNT(*) it takes in count column indexes, so it will be the best result. Mysql with MyISAM engine actually stores row count, it doensn't count all rows each time you try to count all rows. (based on primary key's column)

Using PHP to count rows is not very smart, because you have to send data from mysql to php. Why do it when you can achieve the same on the mysql side?

If the COUNT(*) is slow, you should run EXPLAIN on the query, and check if indexes are really used, and where should they be added.

The following is not the fastest way, but there is a case, where COUNT(*) doesn't really fit - when you start grouping results, you can run into problem, where COUNT doesn't really count all rows.

The solution is SQL_CALC_FOUND_ROWS. This is usually used when you are selecting rows but still need to know the total row count (for example, for paging). When you select data rows, just append the SQL_CALC_FOUND_ROWS keyword after SELECT:

SELECT SQL_CALC_FOUND_ROWS [needed fields or *] FROM table LIMIT 20 OFFSET 0;

After you have selected needed rows, you can get the count with this single query:

SELECT FOUND_ROWS();

FOUND_ROWS() has to be called immediately after the data selecting query.

In conclusion, everything actually comes down to how many entries you have and what is in the WHERE statement. You should really pay attention on how indexes are being used, when there are lots of rows (tens of thousands, millions, and up).

Use the eq selector to selct the nth row (0-based) and add your row after it using after, so:

$('#my_table > tbody:last tr:eq(2)').after(html);

where html is a tr

I just wanted to add a very subtle point about %%timeit. Given it runs the "magics" on the cell, you'll get error...

UsageError: Line magic function %%timeit not found

...if there is any code/comment lines above %%timeit. In other words, ensure that %%timeit is the first command in your cell.

I know it's a small point all the experts will say duh to, but just wanted to add my half a cent for the young wizards starting out with magic tricks.

Try this one.

ALTER TABLE tb_TableName
ALTER COLUMN Record_Status VARCHAR(20) NOT NULL

ALTER TABLE tb_TableName
ADD CONSTRAINT DEF_Name DEFAULT '' FOR Record_Status

I had this problem. Solution for me was to remove links to Vue.js files. Vue.js and JQuery have some conflicts in datepicker and datetimepicker functions.

You should be able to use

IIF(Fields!ExitReason.Value = 7, 1, 0)

http://msdn.microsoft.com/en-us/library/ms157328.aspx

There doesn't seem to be justify-self, but you can achieve similar result setting appropriate margin to auto¹. E. g. for flex-direction: row (default) you should set margin-right: auto to align the child to the left.

.container {_x000D_
  height: 100px;_x000D_
  border: solid 10px skyblue;_x000D_
  _x000D_
  display: flex;_x000D_
  justify-content: flex-end;_x000D_
}_x000D_
.block {_x000D_
  width: 50px;_x000D_
  background: tomato;_x000D_
}_x000D_
.justify-start {_x000D_
  margin-right: auto;_x000D_
}

<div class="container">_x000D_
  <div class="block justify-start"></div>_x000D_
  <div class="block"></div>_x000D_
</div>

¹ This behaviour is defined by the Flexbox spec.

There are also the %<% and %<=% comparison operators in the TeachingDemos package which allow you to do this like:

sum( 2 %<% x %<% 5 )
sum( 2 %<=% x %<=% 5 )

which gives the same results as:

sum( 2 < x & x < 5 )
sum( 2 <= x & x <= 5 )

Which is better is probably more a matter of personal preference.

As of mid-2015, I believe this is the best solution:

<input type="number" pattern="[0-9]*" inputmode="numeric">

This will give you the numeric keypad on both Android and iOS:

It also gives you the expected desktop behavior with the up/down arrow buttons and keyboard friendly up/down arrow key incrementing:

Try it in this code snippet:

<form>_x000D_
  <input type="number" pattern="[0-9]*" inputmode="numeric">_x000D_
  <button type="submit">Submit</button>_x000D_
</form>

By combining both type="number" and pattern="[0-9]*, we get a solution that works everywhere. And, its forward compatible with the future HTML 5.1 proposed inputmode attribute.

Note: Using a pattern will trigger the browser's native form validation. You can disable this using the novalidate attribute, or you can customize the error message for a failed validation using the title attribute.

If you need to be able to enter leading zeros, commas, or letters - for example, international postal codes - check out this slight variant.

Credits and further reading:

http://www.smashingmagazine.com/2015/05/form-inputs-browser-support-issue/ http://danielfriesen.name/blog/2013/09/19/input-type-number-and-ios-numeric-keypad/

BrowserStack.com
On this site, you can emulate a lot of iOS's devices online.

String temp = "abcdefghi";
if(temp.indexOf("b")!=-1)
{
   System.out.println("there is 'b' in temp string");
}
else
{
   System.out.println("there is no 'b' in temp string");
}

In my case it was the use of the call_command module that posed a problem.
I added set DJANGO_SETTINGS_MODULE=mysite.settings but it didn't work.

I finally found it:

add these lines at the top of the script, and the order matters.

import os
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "mysite.settings")

import django
django.setup()

from django.core.management import call_command

I would suggest that you wrap your appropriate code block in a try catch block. You can then use the Raiserror event with a severity of 11 in order to break to the catch block if you wish. If you just want to raiserrors but continue execution within the try block then use a lower severity.

Make sense?

Cheers, John

[Edited to include BOL Reference]

http://msdn.microsoft.com/en-us/library/ms175976(SQL.90).aspx

Instead of writing a function to do this check, you should just be able to use this expression:

(number < 0)

Javascript will evaluate this expression by first trying to convert the left hand side to a number value before checking if it's less than zero, which seems to be what you wanted.

Specifications and details

The behavior for x < y is specified in §11.8.1 The Less-than Operator (<), which uses §11.8.5 The Abstract Relational Comparison Algorithm.

The situation is a lot different if both x and y are strings, but since the right hand side is already a number in (number < 0), the comparison will attempt to convert the left hand side to a number to be compared numerically. If the left hand side can not be converted to a number, the result is false.

Do note that this may give different results when compared to your regex-based approach, but depending on what is it that you're trying to do, it may end up doing the right thing anyway.

• "-0" < 0 is false, which is consistent with the fact that -0 < 0 is also false (see: signed zero).
• "-Infinity" < 0 is true (infinity is acknowledged)
• "-1e0" < 0 is true (scientific notation literals are accepted)
• "-0x1" < 0 is true (hexadecimal literals are accepted)
• " -1 " < 0 is true (some forms of whitespaces are allowed)

For each of the above example, the regex method would evaluate to the contrary (true instead of false and vice versa).

References

• ECMAScript 5 (PDF)
• ECMAScript 3, §11.8.1 The Less-than Operator (<)
• ECMAScript 3, §11.8.5 The Abstract Relational Comparison Algorithm

See also

• regular-expressions.info/Matching Floating Point Numbers with a Regular Expression

Appendix 1: Conditional operator ?:

It should also be said that statements of this form:

if (someCondition) {
   return valueForTrue;
} else {
   return valueForFalse;
}

can be refactored to use the ternary/conditional ?: operator (§11.12) to simply:

return (someCondition) ? valueForTrue : valueForFalse;

Idiomatic usage of ?: can make the code more concise and readable.

Related questions

• javascript if alternative
• To Ternary or Not To Ternary?

Appendix 2: Type conversion functions

Javascript has functions that you can call to perform various type conversions.

Something like the following:

if (someVariable) {
   return true;
} else {
   return false;
}

Can be refactored using the ?: operator to:

return (someVariable ? true : false);

But you can also further simplify this to:

return Boolean(someVariable);

This calls Boolean as a function (§15.16.1) to perform the desired type conversion. You can similarly call Number as a function (§15.17.1) to perform a conversion to number.

Related questions

• How can I convert a string to boolean in JavaScript?
• what is the purpose of javascript new Boolean() ?

For Bootstrap 3.0 or higher, see this answer

We're only looking at class .span1 here (one column on a 12 wide grid), but you can achieve what you want by removing the left margin from:

.row-fluid [class*="span"] { margin:0 } // line 571 of bootstrap responsive

Then changing .row-fluid .span1's width to equal to 100% divided by 12 columns (8.3333%).

.row-fluid .span1 { width: 8.33334% } // line 632 of bootstrap responsive

You may want to do this by adding an additional class that would allow you to leave the base grid system intact:

.row-fluid [class*="NoGutter"] { margin-left:0 }
.row-fluid .span1NoGutter { width: 8.33334% }

<div class="row-fluid show-grid">
    <div class="span1NoGutter">1</div>
</div>

You could repeat this pattern for all other columns, as well:

.row-fluid .span2NoGutter { width:16.66667%; margin-left:0 } // 100% / 6 col
.row-fluid .span4NoGutter { width:25%; margin-left:0 } // 100% / 4 col
.row-fluid .span3NoGutter { width:33.33333%; margin-left:0 } // 100% / 3 col
or
.row-fluid .span4NoGutter { width:25% }
.row-fluid [class*="NoGutter"] { margin-left:0 }

* EDIT (insisting on using the default grid)
If the default grid system is a requirement, it defaults to a width of 940px (the .container and .span12 classes, that is); thus, in simplest terms, you'd want to divide 940 by 12. That equates to 12 containers 78.33333px wide.

So line 339 of bootstrap.css could be edited like so:

.span1 { width:78.33333px; margin-left:0 }
  or
.span1 { width:8.33334%; margin-left:0 }
// this should render at 78.333396px (78.333396 x 12 = 940.000752)

There are some very important benefits to the use of const and some would say it should be used wherever possible because of how deliberate and indicative it is.

It is, as far as I can tell, the most indicative and predictable declaration of variables in JavaScript, and one of the most useful, BECAUSE of how constrained it is. Why? Because it eliminates some possibilities available to var and let declarations.

What can you infer when you read a const? You know all of the following just by reading the const declaration statement, AND without scanning for other references to that variable:

• the value is bound to that variable (although its underlying object is not deeply immutable)
• it can’t be accessed outside of its immediately containing block
• the binding is never accessed before declaration, because of Temporal Dead Zone (TDZ) rules.

The following quote is from an article arguing the benefits of let and const. It also more directly answers your question about the keyword's constraints/limits:

Constraints such as those offered by let and const are a powerful way of making code easier to understand. Try to accrue as many of these constraints as possible in the code you write. The more declarative constraints that limit what a piece of code could mean, the easier and faster it is for humans to read, parse, and understand a piece of code in the future.

Granted, there’s more rules to a const declaration than to a var declaration: block-scoped, TDZ, assign at declaration, no reassignment. Whereas var statements only signal function scoping. Rule-counting, however, doesn’t offer a lot of insight. It is better to weigh these rules in terms of complexity: does the rule add or subtract complexity? In the case of const, block scoping means a narrower scope than function scoping, TDZ means that we don’t need to scan the scope backwards from the declaration in order to spot usage before declaration, and assignment rules mean that the binding will always preserve the same reference.

The more constrained statements are, the simpler a piece of code becomes. As we add constraints to what a statement might mean, code becomes less unpredictable. This is one of the biggest reasons why statically typed programs are generally easier to read than dynamically typed ones. Static typing places a big constraint on the program writer, but it also places a big constraint on how the program can be interpreted, making its code easier to understand.

With these arguments in mind, it is recommended that you use const where possible, as it’s the statement that gives us the least possibilities to think about.

Source: https://ponyfoo.com/articles/var-let-const

If you happen to be using the amqplib library as I am, they have a handy example of an implementation of the Publish/Subscribe RabbitMQ tutorial which you might find handy.

You could do:

sub("*\\.[0-9]", "", a)

or

library(stringr)
str_sub(a, start=1, end=-3)

Just in three steps:

1. Subscriptions: list -> https://www.googleapis.com/youtube/v3/subscriptions?part=snippet&maxResults=50&mine=true&access_token={oauth_token}

2. Channels: list -> https://www.googleapis.com/youtube/v3/channels?part=contentDetails&id={channel_id}&key={YOUR_API_KEY}

3. PlaylistItems: list -> https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&playlistId={playlist_id}&key={YOUR_API_KEY}

If you want to scan to the end of the string (stripping out a newline if there), just use:

char *x = "19 cool kid";
sscanf (x, "%d %[^\n]", &age, buffer);

That's because %s only matches non-whitespace characters and will stop on the first whitespace it finds. The %[^\n] format specifier will match every character that's not (because of ^) in the selection given (which is a newline). In other words, it will match any other character.

Keep in mind that you should have allocated enough space in your buffer to take the string since you cannot be sure how much will be read (a good reason to stay away from scanf/fscanf unless you use specific field widths).

You could do that with:

char *x = "19 cool kid";
char *buffer = malloc (strlen (x) + 1);
sscanf (x, "%d %[^\n]", &age, buffer);

(you don't need * sizeof(char) since that's always 1 by definition).

This is how I solved the problem The menu closes a few seconds after mouse out (that if hover didn't fire),

//Set timer switch
$setM_swith=0;

$(function(){
    $(".navbar-nav li a").click(function(event) {
        if (!$(this).parent().hasClass('dropdown'))
            $(".navbar-collapse").collapse('hide');
    });
    $(".navbar-collapse").mouseleave(function(){
        $setM_swith=1;
        setTimeout(function(){ 
           if($setM_swith==1) {
             $(".navbar-collapse").collapse('hide');
             $setM_swith=0;} 
        }, 3000);
    });
    $(".navbar-collapse").mouseover(function() {
        $setM_swith=0;
    });
 });

The way I have done it is to have the actionLink and the image seperately. Set the actionlink image as hidden and then added a jQuery trigger call. This is more of a workaround.

'<%= Html.ActionLink("Button Name", "Index", null, new { @class="yourclassname" }) %>'
<img id="yourImage" src="myImage.jpg" />

Trigger example:

$("#yourImage").click(function () {
  $('.yourclassname').trigger('click');
});

I recently ran into this, and it ended up being because I had a convert statement on a null variable. Since that was causing errors, the entire print statement was rendering as null, and not printing at all.

Example - This will fail:

declare @myID int=null
print 'First Statement: ' + convert(varchar(4), @myID)

Example - This will print:

declare @myID int=null
print 'Second Statement: ' +  coalesce(Convert(varchar(4), @myID),'@myID is null')

using programetically

           // Set ListView divider color
            lv.setDivider(new ColorDrawable(Color.parseColor("#FF4A4D93")));

            // set ListView divider height
            lv.setDividerHeight(2);

using xml

<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content">

  <ListView 
    android:id="@+id/android:list"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:divider="#44CC00"
    android:dividerHeight="4px"/>

</LinearLayout>

path = path.substring(0, path.length() - 5);

The correct syntax ( as tested in VS 2008 SP1), is this:

public static class ErrorCode
{
    public static IDictionary<string, string> ErrorCodeDic;
     static ErrorCode()
    {
        ErrorCodeDic = new Dictionary<string, string>()
            { {"1", "User name or password problem"} };
    }
}

If the folder just contains functions then adding the folders to the path at the start of the script will suffice.

addpath('../folder_x/');
addpath('../folder_y/');

If they are Packages, folders starting with a '+' then they also need to be imported.

import package_x.*
import package_y.*

You need to add the package folders parent to the search path.

Starting with Spring Security version 3.2, the custom functionality that has been implemented by some of the older answers, exists out of the box in the form of the @AuthenticationPrincipal annotation that is backed by AuthenticationPrincipalArgumentResolver.

An simple example of it's use is:

@Controller
public class MyController {
   @RequestMapping("/user/current/show")
   public String show(@AuthenticationPrincipal CustomUser customUser) {
        // do something with CustomUser
       return "view";
   }
}

CustomUser needs to be assignable from authentication.getPrincipal()

Here are the corresponding Javadocs of AuthenticationPrincipal and AuthenticationPrincipalArgumentResolver

Really the ideal way to do this is to not use pull at all, but instead fetch and reset:

git fetch origin master
git reset --hard FETCH_HEAD
git clean -df

(Altering master to whatever branch you want to be following.)

pull is designed around merging changes together in some way, whereas reset is designed around simply making your local copy match a specific commit.

You may want to consider slightly different options to clean depending on your system's needs.

plot(t) is in this case the same as

plot(t[[1]], t[[2]])

As the error message says, x and y differ in length and that is because you plot a list with length 4 against 1:

> length(t)
[1] 4
> length(1)
[1] 1

In your second example you plot a list with elements named x and y, both vectors of length 2, so plot plots these two vectors.

Edit:

If you want to plot lines use

plot(t, type="l")

I often use this:

function deepCopy(obj) {
    if(typeof obj !== 'object' || obj === null) {
        return obj;
    }

    if(obj instanceof Date) {
        return new Date(obj.getTime());
    }

    if(obj instanceof Array) {
        return obj.reduce((arr, item, i) => {
            arr[i] = deepCopy(item);
            return arr;
        }, []);
    }

    if(obj instanceof Object) {
        return Object.keys(obj).reduce((newObj, key) => {
            newObj[key] = deepCopy(obj[key]);
            return newObj;
        }, {})
    }
}

macOS

I'm running Virtual Box on macOS (previously OS X), using Virtual Box to test IE on Windows, etc.

Go to IE in Virtual Box and access localhost via http://10.0.2.2 for localhost, or http://10.0.2.2:3000 for localhost:3000.

I kept Network settings as NAT, no need for bridge as suggested above in my case. There is no need to edit any config files.

Below illustrates XORing string s with m, and then again to reverse the process:

>>> s='hello, world'
>>> m='markmarkmark'
>>> s=''.join(chr(ord(a)^ord(b)) for a,b in zip(s,m))
>>> s
'\x05\x04\x1e\x07\x02MR\x1c\x02\x13\x1e\x0f'
>>> s=''.join(chr(ord(a)^ord(b)) for a,b in zip(s,m))
>>> s
'hello, world'
>>>

I got this error after reinstalling IntelliJ IDEA and ReSharper for C# in Visual Studio 2013.

First, I got an error problem with extensions, and after this I got this error:

"No exports were found that match the constraint contract name”

I simply removed folder ComponentModelCache and resolved this error.

The main purpose of a list comprehension is to create a new list based on another one without changing or destroying the original list.

Instead of writing

l = []
for n in range(1, 11):
    l.append(n)

or

l = [n for n in range(1, 11)]

you should write only

l = range(1, 11)

In the two top code blocks you're creating a new list, iterating through it and just returning each element. It's just an expensive way of creating a list copy.

To get a new dictionary with all keys set to the same value based on another dict, do this:

old_dict = {'a': 1, 'c': 3, 'b': 2}
new_dict = { key:'your value here' for key in old_dict.keys()}

You're receiving a SyntaxError because when you write

d = {}
d[i for i in range(1, 11)] = True

you're basically saying: "Set my key 'i for i in range(1, 11)' to True" and "i for i in range(1, 11)" is not a valid key, it's just a syntax error. If dicts supported lists as keys, you would do something like

d[[i for i in range(1, 11)]] = True

and not

d[i for i in range(1, 11)] = True

but lists are not hashable, so you can't use them as dict keys.

For some reason I was not able to use my scalar function until I referenced it using brackets, like so:

select [dbo].[fun_functional_score]('01091400003')

This version produces JSON that is more compact and in my opinion more readable since you can see more at one time. It does this by formatting the deepest layer inline or like a compact array structure.

The code has no dependencies but is more complex.

{ 
  "name":"Seller", 
  "schema":"dbo",
  "CaptionFields":["Caption","Id"],
  "fields":[ 
    {"name":"Id","type":"Integer","length":"10","autoincrement":true,"nullable":false}, 
    {"name":"FirstName","type":"Text","length":"50","autoincrement":false,"nullable":false}, 
    {"name":"LastName","type":"Text","length":"50","autoincrement":false,"nullable":false}, 
    {"name":"LotName","type":"Text","length":"50","autoincrement":false,"nullable":true}, 
    {"name":"LotDetailsURL","type":"Text","length":"255","autoincrement":false,"nullable":true} 
  ]
}

The code follows

private class IndentJsonInfo
{
    public IndentJsonInfo(string prefix, char openingTag)
    {
        Prefix = prefix;
        OpeningTag = openingTag;
        Data = new List<string>();
    }
    public string Prefix;
    public char OpeningTag;
    public bool isOutputStarted;
    public List<string> Data;
}
internal static string IndentJSON(string jsonString, int startIndent = 0, int indentSpaces = 2)
{
    if (String.IsNullOrEmpty(jsonString))
        return jsonString;

    try
    {
        var jsonCache = new List<IndentJsonInfo>();
        IndentJsonInfo currentItem = null;

        var sbResult = new StringBuilder();

        int curIndex = 0;
        bool inQuotedText = false;

        var chunk = new StringBuilder();

        var saveChunk = new Action(() =>
        {
            if (chunk.Length == 0)
                return;
            if (currentItem == null)
                throw new Exception("Invalid JSON: No container.");
            currentItem.Data.Add(chunk.ToString());
            chunk = new StringBuilder();
        });

        while (curIndex < jsonString.Length)
        {
            var cChar = jsonString[curIndex];
            if (inQuotedText)
            {
                // Get the rest of quoted text.
                chunk.Append(cChar);

                // Determine if the quote is escaped.
                bool isEscaped = false;
                var excapeIndex = curIndex;
                while (excapeIndex > 0 && jsonString[--excapeIndex] == '\\') isEscaped = !isEscaped;

                if (cChar == '"' && !isEscaped)
                    inQuotedText = false;
            }
            else if (Char.IsWhiteSpace(cChar))
            {
                // Ignore all whitespace outside of quotes.
            }
            else
            {
                // Outside of Quotes.
                switch (cChar)
                {
                    case '"':
                        chunk.Append(cChar);
                        inQuotedText = true;
                        break;
                    case ',':
                        chunk.Append(cChar);
                        saveChunk();
                        break;
                    case '{':
                    case '[':
                        currentItem = new IndentJsonInfo(chunk.ToString(), cChar);
                        jsonCache.Add(currentItem);
                        chunk = new StringBuilder();
                        break;
                    case '}':
                    case ']':
                        saveChunk();
                        for (int i = 0; i < jsonCache.Count; i++)
                        {
                            var item = jsonCache[i];
                            var isLast = i == jsonCache.Count - 1;
                            if (!isLast)
                            {
                                if (!item.isOutputStarted)
                                {
                                    sbResult.AppendLine(
                                        "".PadLeft((startIndent + i) * indentSpaces) +
                                        item.Prefix + item.OpeningTag);
                                    item.isOutputStarted = true;
                                }
                                var newIndentString = "".PadLeft((startIndent + i + 1) * indentSpaces);
                                foreach (var listItem in item.Data)
                                {
                                    sbResult.AppendLine(newIndentString + listItem);
                                }
                                item.Data = new List<string>();
                            }
                            else // If Last
                            {
                                if (!(
                                    (item.OpeningTag == '{' && cChar == '}') ||
                                    (item.OpeningTag == '[' && cChar == ']')
                                   ))
                                {
                                    throw new Exception("Invalid JSON: Container Mismatch, Open '" + item.OpeningTag + "', Close '" + cChar + "'.");
                                }

                                string closing = null;
                                if (item.isOutputStarted)
                                {
                                    var newIndentString = "".PadLeft((startIndent + i + 1) * indentSpaces);
                                    foreach (var listItem in item.Data)
                                    {
                                        sbResult.AppendLine(newIndentString + listItem);
                                    }
                                    closing = cChar.ToString();
                                }
                                else
                                {
                                    closing =
                                        item.Prefix + item.OpeningTag +
                                        String.Join("", currentItem.Data.ToArray()) +
                                        cChar;
                                }

                                jsonCache.RemoveAt(i);
                                currentItem = (jsonCache.Count > 0) ? jsonCache[jsonCache.Count - 1] : null;
                                chunk.Append(closing);
                            }
                        }
                        break;
                    default:
                        chunk.Append(cChar);
                        break;
                }
            }
            curIndex++;
        }

        if (inQuotedText)
            throw new Exception("Invalid JSON: Incomplete Quote");
        else if (jsonCache.Count != 0)
            throw new Exception("Invalid JSON: Incomplete Structure");
        else
        {
            if (chunk.Length > 0)
                sbResult.AppendLine("".PadLeft(startIndent * indentSpaces) + chunk);
            var result = sbResult.ToString();
            return result;
        }
    }
    catch (Exception ex)
    {
        throw;  // Comment out to return unformatted text if the format failed.
        // Invalid JSON, skip the formatting.
        return jsonString;
    }
}

The function allows you to specify a starting point for the indentation because I use this as part of a process that assembles very large JSON formatted backup files.

Yes. You can have a span within a span. Your problem stems from something else.

Make variables are not exported into the environment of processes make invokes... by default. However you can use make's export to force them to do so. Change:

test: NODE_ENV = test

to this:

test: export NODE_ENV = test

(assuming you have a sufficiently modern version of GNU make >= 3.77 ).

Using the C++ API, the function name has slightly changed and it writes now:

#include <opencv2/imgproc/imgproc.hpp>

cv::Mat greyMat, colorMat;
cv::cvtColor(colorMat, greyMat, CV_BGR2GRAY);

The main difficulties are that the function is in the imgproc module (not in the core), and by default cv::Mat are in the Blue Green Red (BGR) order instead of the more common RGB.

OpenCV 3

Starting with OpenCV 3.0, there is yet another convention. Conversion codes are embedded in the namespace cv:: and are prefixed with COLOR. So, the example becomes then:

#include <opencv2/imgproc/imgproc.hpp>

cv::Mat greyMat, colorMat;
cv::cvtColor(colorMat, greyMat, cv::COLOR_BGR2GRAY);

As far as I have seen, the included file path hasn't changed (this is not a typo).

you can use

moviesTitles.map((title) => Tab(text: title)).toList()

example:

    bottom: new TabBar(
      controller: _controller,
      isScrollable: true,
      tabs:
        moviesTitles.map((title) => Tab(text: title)).toList()
      ,
    ),

After reading this post some time ago I was wondering if it was safe to use domains for exception handling on an api / function level. I wanted to use them to simplify exception handling code in each async function I wrote. My concern was that using a new domain for each function would introduce significant overhead. My homework seems to indicate that there is minimal overhead and that performance is actually better with domains than with try catch in some situations.

http://www.lighthouselogic.com/#/using-a-new-domain-for-each-async-function-in-node/

For me the solution was fixing a syntax error:

removing a unwanted semi colon in the angular.module function

This approach avoids the warnings while preserving the array-oriented evaluation.

import numpy as np
def isnat(x):
    """ 
    datetime64 analog to isnan.
    doesn't yet exist in numpy - other ways give warnings
    and are likely to change.  
    """
    return x.astype('i8') == np.datetime64('NaT').astype('i8')

I would go with the traditional find & xargs way:

find ~/Linux/Old -maxdepth 1 -mindepth 1 -not -name Tux.png -print0 | 
    xargs -0 mv -t ~/Linux/New

-maxdepth 1 makes it not search recursively. If you only care about files, you can say -type f. -mindepth 1 makes it not include the ~/Linux/Old path itself into the result. Works with any filenames, including with those that contain embedded newlines.

One comment notes that the mv -t option is a probably GNU extension. For systems that don't have it

find ~/Linux/Old -maxdepth 1 -mindepth 1 -not -name Tux.png \
    -exec mv '{}' ~/Linux/New \;

Yet another way of getting the last item from a MongoDB Collection (don't mind about the examples):

> db.collection.find().sort({'_id':-1}).limit(1)

Normal Projection

> db.Sports.find()
{ "_id" : ObjectId("5bfb5f82dea65504b456ab12"), "Type" : "NFL", "Head" : "Patriots Won SuperBowl 2017", "Body" : "Again, the Pats won the Super Bowl." }
{ "_id" : ObjectId("5bfb6011dea65504b456ab13"), "Type" : "World Cup 2018", "Head" : "Brazil Qualified for Round of 16", "Body" : "The Brazilians are happy today, due to the qualification of the Brazilian Team for the Round of 16 for the World Cup 2018." }
{ "_id" : ObjectId("5bfb60b1dea65504b456ab14"), "Type" : "F1", "Head" : "Ferrari Lost Championship", "Body" : "By two positions, Ferrari loses the F1 Championship, leaving the Italians in tears." }

Sorted Projection ( _id: reverse order )

> db.Sports.find().sort({'_id':-1})
{ "_id" : ObjectId("5bfb60b1dea65504b456ab14"), "Type" : "F1", "Head" : "Ferrari Lost Championship", "Body" : "By two positions, Ferrari loses the F1 Championship, leaving the Italians in tears." }
{ "_id" : ObjectId("5bfb6011dea65504b456ab13"), "Type" : "World Cup 2018", "Head" : "Brazil Qualified for Round of 16", "Body" : "The Brazilians are happy today, due to the qualification of the Brazilian Team for the Round of 16 for the World Cup 2018." }
{ "_id" : ObjectId("5bfb5f82dea65504b456ab12"), "Type" : "NFL", "Head" : "Patriots Won SuperBowl 2018", "Body" : "Again, the Pats won the Super Bowl" }

sort({'_id':-1}), defines a projection in descending order of all documents, based on their _ids.

Sorted Projection ( _id: reverse order ): getting the latest (last) document from a collection.

> db.Sports.find().sort({'_id':-1}).limit(1)
{ "_id" : ObjectId("5bfb60b1dea65504b456ab14"), "Type" : "F1", "Head" : "Ferrari Lost Championship", "Body" : "By two positions, Ferrari loses the F1 Championship, leaving the Italians in tears." }

I found this blog post which shows a concise way:

git log --oneline --abbrev-commit --all --graph --decorate --color

I usually create an alias for the above command:

alias gl='git log --oneline --abbrev-commit --all --graph --decorate --color'

and simple just use gl.

You can also add the alias to the git config . Open ~/.gitconfig and add the following line to the [alias]

[alias]
        lg = log --oneline --abbrev-commit --all --graph --decorate --color

and use it like this: git lg

convert(varchar(34), HASHBYTES('MD5','Hello World'),1)

(1 for converting hexadecimal to string)

convert this to lower and remove 0x from the start of the string by substring:

substring(lower(convert(varchar(34), HASHBYTES('MD5','Hello World'),1)),3,32)

exactly the same as what we get in C# after converting bytes to string

 <Switch
        android:thumb="@drawable/thumb"
        android:track="@drawable/track"
        android:layout_width="wrap_content"
        android:layout_height="match_parent" />

UPDATE:3 Now that I have upgraded to new Router, @borislemke's approach will not work if you use CanDeactivate guard. I'm degrading to my old method, ie: this answer

UPDATE2: Router events in new-router look promising and the answer by @borislemke seems to cover the main aspect of spinner implementation, I havent't tested it but I recommend it.

UPDATE1: I wrote this answer in the era of Old-Router, when there used to be only one event route-changed notified via router.subscribe(). I also felt overload of the below approach and tried to do it using only router.subscribe(), and it backfired because there was no way to detect canceled navigation. So I had to revert back to lengthy approach(double work).

If you know your way around in Angular2, this is what you'll need

Boot.ts

import {bootstrap} from '@angular/platform-browser-dynamic';
import {MyApp} from 'path/to/MyApp-Component';
import { SpinnerService} from 'path/to/spinner-service';

bootstrap(MyApp, [SpinnerService]);

Root Component- (MyApp)

import { Component } from '@angular/core';
import { SpinnerComponent} from 'path/to/spinner-component';
@Component({
  selector: 'my-app',
  directives: [SpinnerComponent],
  template: `
     <spinner-component></spinner-component>
     <router-outlet></router-outlet>
   `
})
export class MyApp { }

Spinner-Component (will subscribe to Spinner-service to change the value of active accordingly)

import {Component} from '@angular/core';
import { SpinnerService} from 'path/to/spinner-service';
@Component({
  selector: 'spinner-component',
  'template': '<div *ngIf="active" class="spinner loading"></div>'
})
export class SpinnerComponent {
  public active: boolean;

  public constructor(spinner: SpinnerService) {
    spinner.status.subscribe((status: boolean) => {
      this.active = status;
    });
  }
}

Spinner-Service (bootstrap this service)

Define an observable to be subscribed by spinner-component to change the status on change, and function to know and set the spinner active/inactive.

import {Injectable} from '@angular/core';
import {Subject} from 'rxjs/Subject';
import 'rxjs/add/operator/share';

@Injectable()
export class SpinnerService {
  public status: Subject<boolean> = new Subject();
  private _active: boolean = false;

  public get active(): boolean {
    return this._active;
  }

  public set active(v: boolean) {
    this._active = v;
    this.status.next(v);
  }

  public start(): void {
    this.active = true;
  }

  public stop(): void {
    this.active = false;
  }
}

All Other Routes' Components

(sample):

import { Component} from '@angular/core';
import { SpinnerService} from 'path/to/spinner-service';
@Component({
   template: `<div *ngIf="!spinner.active" id="container">Nothing is Loading Now</div>`
})
export class SampleComponent {

  constructor(public spinner: SpinnerService){} 

  ngOnInit(){
    this.spinner.stop(); // or do it on some other event eg: when xmlhttp request completes loading data for the component
  }

  ngOnDestroy(){
    this.spinner.start();
  }
}

Remove the max-width from the body, and put it to the #container.

So, instead of:

body {
    max-width:1250px;
}

You should have:

#container {
    max-width:1250px;
}

You need to create an instance of the type that expose the Output method:

static void Main(string[] args)
    {
        var DLL = Assembly.LoadFile(@"C:\visual studio 2012\Projects\ConsoleApplication1\ConsoleApplication1\DLL.dll");

        var class1Type = DLL.GetType("DLL.Class1");

        //Now you can use reflection or dynamic to call the method. I will show you the dynamic way

        dynamic c = Activator.CreateInstance(class1Type);
        c.Output(@"Hello");

        Console.ReadLine();
     }

Swift 3:

if let jsonString = styleDictionary as? String {
    let objectData = jsonString.data(using: String.Encoding.utf8)
    do {
        let json = try JSONSerialization.jsonObject(with: objectData!, options: JSONSerialization.ReadingOptions.mutableContainers) 
        print(String(describing: json)) 

    } catch {
        // Handle error
        print(error)
    }
}

If the relative path is a directory path, then try mine, should be the best:

absPath=$(pushd ../SOME_RELATIVE_PATH_TO_Directory > /dev/null && pwd && popd > /dev/null)

echo $absPath

Here's how I do it, the keys are getItemViewType and getViewTypeCount in the Adapter class. getViewTypeCount returns how many types of items we have in the list, in this case we have a header item and an event item, so two. getItemViewType should return what type of View we have at the input position.

Android will then take care of passing you the right type of View in convertView automatically.

Here what the result of the code below looks like:

First we have an interface that our two list item types will implement

public interface Item {
    public int getViewType();
    public View getView(LayoutInflater inflater, View convertView);
}

Then we have an adapter that takes a list of Item

public class TwoTextArrayAdapter extends ArrayAdapter<Item> {
    private LayoutInflater mInflater;

    public enum RowType {
        LIST_ITEM, HEADER_ITEM
    }

    public TwoTextArrayAdapter(Context context, List<Item> items) {
        super(context, 0, items);
        mInflater = LayoutInflater.from(context);
    }

    @Override
    public int getViewTypeCount() {
        return RowType.values().length;

    }

    @Override
    public int getItemViewType(int position) {
        return getItem(position).getViewType();
    }

@Override
public View getView(int position, View convertView, ViewGroup parent) {
   return getItem(position).getView(mInflater, convertView);
}

EDIT Better For Performance.. can be noticed when scrolling

private static final int TYPE_ITEM = 0; 
private static final int TYPE_SEPARATOR = 1; 

public View getView(int position, View convertView, ViewGroup parent)  {
    ViewHolder holder = null;
    int rowType = getItemViewType(position);
    View View;
    if (convertView == null) {
        holder = new ViewHolder();
        switch (rowType) {
            case TYPE_ITEM:
                convertView = mInflater.inflate(R.layout.task_details_row, null);
                holder.View=getItem(position).getView(mInflater, convertView);
                break;
            case TYPE_SEPARATOR:
                convertView = mInflater.inflate(R.layout.task_detail_header, null);
                holder.View=getItem(position).getView(mInflater, convertView);
                break;
        }
        convertView.setTag(holder);
    }
    else
    {
        holder = (ViewHolder) convertView.getTag();
    }
    return convertView; 
} 

public static class ViewHolder {
    public  View View; } 
}

Then we have classes the implement Item and inflate the correct layouts. In your case you'll have something like a Header class and a ListItem class.

   public class Header implements Item {
    private final String         name;

    public Header(String name) {
        this.name = name;
    }

    @Override
    public int getViewType() {
        return RowType.HEADER_ITEM.ordinal();
    }

    @Override
    public View getView(LayoutInflater inflater, View convertView) {
        View view;
        if (convertView == null) {
            view = (View) inflater.inflate(R.layout.header, null);
            // Do some initialization
        } else {
            view = convertView;
        }

        TextView text = (TextView) view.findViewById(R.id.separator);
        text.setText(name);

        return view;
    }

}

And then the ListItem class

    public class ListItem implements Item {
    private final String         str1;
    private final String         str2;

    public ListItem(String text1, String text2) {
        this.str1 = text1;
        this.str2 = text2;
    }

    @Override
    public int getViewType() {
        return RowType.LIST_ITEM.ordinal();
    }

    @Override
    public View getView(LayoutInflater inflater, View convertView) {
        View view;
        if (convertView == null) {
            view = (View) inflater.inflate(R.layout.my_list_item, null);
            // Do some initialization
        } else {
            view = convertView;
        }

        TextView text1 = (TextView) view.findViewById(R.id.list_content1);
        TextView text2 = (TextView) view.findViewById(R.id.list_content2);
        text1.setText(str1);
        text2.setText(str2);

        return view;
    }

}

And a simple Activity to display it

public class MainActivity extends ListActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        List<Item> items = new ArrayList<Item>();
        items.add(new Header("Header 1"));
        items.add(new ListItem("Text 1", "Rabble rabble"));
        items.add(new ListItem("Text 2", "Rabble rabble"));
        items.add(new ListItem("Text 3", "Rabble rabble"));
        items.add(new ListItem("Text 4", "Rabble rabble"));
        items.add(new Header("Header 2"));
        items.add(new ListItem("Text 5", "Rabble rabble"));
        items.add(new ListItem("Text 6", "Rabble rabble"));
        items.add(new ListItem("Text 7", "Rabble rabble"));
        items.add(new ListItem("Text 8", "Rabble rabble"));

        TwoTextArrayAdapter adapter = new TwoTextArrayAdapter(this, items);
        setListAdapter(adapter);
    }

}

Layout for R.layout.header

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >

    <TextView
        style="?android:attr/listSeparatorTextViewStyle"
        android:id="@+id/separator"
        android:text="Header"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="#757678"
        android:textColor="#f5c227" />

</LinearLayout>

Layout for R.layout.my_list_item

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >

    <TextView
        android:id="@+id/list_content1"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_margin="5dip"
        android:clickable="false"
        android:gravity="center"
        android:longClickable="false"
        android:paddingBottom="1dip"
        android:paddingTop="1dip"
        android:text="sample"
        android:textColor="#ff7f1d"
        android:textSize="17dip"
        android:textStyle="bold" />

    <TextView
        android:id="@+id/list_content2"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_margin="5dip"
        android:clickable="false"
        android:gravity="center"
        android:linksClickable="false"
        android:longClickable="false"
        android:paddingBottom="1dip"
        android:paddingTop="1dip"
        android:text="sample"
        android:textColor="#6d6d6d"
        android:textSize="17dip" />

</LinearLayout>

Layout for R.layout.activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >

    <ListView
        android:id="@android:id/list"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" />

</RelativeLayout>

You can also get fancier and use ViewHolders, load stuff asynchronously, or whatever you like.

I got this error after change a loop in my program, let`s see:

for ...
  for ... 
     x_batch.append(one_hot(int_word, vocab_size))
     y_batch.append(one_hot(int_nb, vocab_size, value))
  ...
  ...
  if ...
        x_batch = np.asarray(x_batch)
        y_batch = np.asarray(y_batch)
...

In fact, I was reusing the variable and forgot to reset them inside the external loop, like the comment of John Lyon:

for ...
  x_batch = []
  y_batch = []
  for ... 
     x_batch.append(one_hot(int_word, vocab_size))
     y_batch.append(one_hot(int_nb, vocab_size, value))
  ...
  ...
  if ...
        x_batch = np.asarray(x_batch)
        y_batch = np.asarray(y_batch)
...

Then, check if you are using np.asarray() or something like that.

To check if a file exists,

from sys import argv

from os.path import exists
script, filename = argv
target = open(filename)
print "file exists: %r" % exists(filename)

UPDATE: Console/Terminal feature was implemented in IDEA 13, PyCharm 3, RubyMine 6, WebStorm/PhpStorm 7.

There is a related feature request, please vote. Setting up an external tool to run a terminal can be used as a workaround.

You can use the mounted() Vue Lifecycle Hook. This will allow you to call a method before the page loads.

This is an implementation example:

HTML:

<div id="app">
  <h1>Welcome our site {{ name }}</h1>
</div>

JS:

var app = new Vue ({
    el: '#app',
    data: {
        name: ''
    },
    mounted: function() {
        this.askName() // Calls the method before page loads
    },
    methods: {
        // Declares the method
        askName: function(){
            this.name = prompt(`What's your name?`)
        }
    }
})

This will get the prompt method's value, insert it in the variable name and output in the DOM after the page loads. You can check the code sample here.

You can read more about Lifecycle Hooks here.

It should be noted that security features have been implemented which require either the app to be ran locally under localhost, or through SSL for GetUserMedia() to work.

I discovered this when trying several of the demos available and was dissapointed when they didn't work! See: New Security Restrictions

You are asking the wrong question. In databases is not the operator performance that matters, is always the SARGability of the expression, and the coverability of the overall query. Performance of the operator itself is largely irrelevant.

So, how do LIKE and = compare in terms of SARGability? LIKE, when used with an expression that does not start with a constant (eg. when used LIKE '%something') is by definition non-SARGabale. But does that make = or LIKE 'something%' SARGable? No. As with any question about SQL performance the answer does not lie with the query of the text, but with the schema deployed. These expression may be SARGable if an index exists to satisfy them.

So, truth be told, there are small differences between = and LIKE. But asking whether one operator or other operator is 'faster' in SQL is like asking 'What goes faster, a red car or a blue car?'. You should eb asking questions about the engine size and vechicle weight, not about the color... To approach questions about optimizing relational tables, the place to look is your indexes and your expressions in the WHERE clause (and other clauses, but it usually starts with the WHERE).

Though I'm usually against it (though in this case it seems that you have a genuine reason), have you tried providing any query hints on the SP version of the query? If SQL Server is preparing a different execution plan in those two instances, can you use a hint to tell it what index to use, so that the plan matches the first one?

For some examples, you can go here.

EDIT: If you can post your query plan here, perhaps we can identify some difference between the plans that's telling.

SECOND: Updated the link to be SQL-2000 specific. You'll have to scroll down a ways, but there's a second titled "Table Hints" that's what you're looking for.

THIRD: The "Bad" query seems to be ignoring the [IX_Openers_SessionGUID] on the "Openers" table - any chance adding an INDEX hint to force it to use that index will change things?

Use NSURLComponents to encode HTTP GET parameters:

    var urlComponents = NSURLComponents(string: "https://www.google.de/maps/")!
    urlComponents.queryItems = [
        NSURLQueryItem(name: "q", value: String(51.500833)+","+String(-0.141944)),
        NSURLQueryItem(name: "z", value: String(6))
    ]
    urlComponents.URL     // returns https://www.google.de/maps/?q=51.500833,-0.141944&z=6

http://www.ralfebert.de/snippets/ios/encoding-nsurl-get-parameters/

Not possible. How is the Map supposed to know which subclass of Animal it's going to get, given only a String key?

The only way this would be possible is if each Animal accepted only one type of friend (then it could be a parameter of the Animal class), or of the callFriend() method got a type parameter. But it really looks like you're missing the point of inheritance: it's that you can only treat subclasses uniformly when using exclusively the superclass methods.

It was happened to me when

I delete project from eclipse Project Explorer and not checked the remove content from disk.

Next time when I tried to import same project in workspace then got same problem.

To solve I just did FYI work that every kid can do :)

So How I solved it:

1. Cut Ctrl + x myProject folder from eclipse workspace to other location ie Desktop
2. Right Click Navigator (you can get it from Window > Show View > Navigator) and Refresh (it will prompt following dialog)
3. Just click Yes button and move your project folder back to eclipse workspace directory
4. Import again!
5. Now Rock 'n' Role

Guard statement going to do . it is couple of different

1) it is allow me to reduce nested if statement
2) it is increase my scope which my variable accessible

if Statement

func doTatal(num1 : Int?, num2: Int?) {
  // nested if statement
    if let fistNum = num1 where num1 > 0 {
        if let lastNum = num2 where num2 < 50 {

          let total = fistNum + lastNum
        }
    }
 // don't allow me to access out of the scope 
 //total = fistNum + lastNum 
}

Guard statement

func doTatal(num1 : Int?, num2: Int?) {
   //reduce  nested if statement and check positive way not negative way 
    guard let fistNum = num1 where num1 > 0 else{
      return
    }
    guard  let lastNum = num2 where num2 < 50 else {
     return
    }
    // increase my scope which my variable accessible
    let total = fistNum + lastNum

}

If you use Bootstrap 3 and everything works fine on other browsers except IE, try the below.

<meta http-equiv="X-UA-Compatible" content="IE=edge" />

<!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
<script src="https://oss.maxcdn.com/libs/respond.js/1.3.0/respond.min.js"></script>
<![endif]-->

You can delete the features folder just like any other in your checkout then commit the change.

To prevent this in the future I suggest you follow the naming conventions for SVN layout.

Either give each project a trunk, branches, tags folder when they are created.

svn
+ project1
  + trunk
    + src
    + etc...
  + branches
    + features
      + src
      + etc...
  + tags
+ project2
  + trunk
  + branches
  + tags

"mm" means the "minutes" fragment of a date. For the "months" part, use "MM".

So, try to change the code to:

DateFormat df = new SimpleDateFormat("MM/dd/yyyy"); 
Date startDate = df.parse(startDateString);

Edit: A DateFormat object contains a date formatting definition, not a Date object, which contains only the date without concerning about formatting. When talking about formatting, we are talking about create a String representation of a Date in a specific format. See this example:

    import java.text.DateFormat;
    import java.text.SimpleDateFormat;
    import java.util.Date;

    public class DateTest {

        public static void main(String[] args) throws Exception {
            String startDateString = "06/27/2007";

            // This object can interpret strings representing dates in the format MM/dd/yyyy
            DateFormat df = new SimpleDateFormat("MM/dd/yyyy"); 

            // Convert from String to Date
            Date startDate = df.parse(startDateString);

            // Print the date, with the default formatting. 
            // Here, the important thing to note is that the parts of the date 
            // were correctly interpreted, such as day, month, year etc.
            System.out.println("Date, with the default formatting: " + startDate);

            // Once converted to a Date object, you can convert 
            // back to a String using any desired format.
            String startDateString1 = df.format(startDate);
            System.out.println("Date in format MM/dd/yyyy: " + startDateString1);

            // Converting to String again, using an alternative format
            DateFormat df2 = new SimpleDateFormat("dd/MM/yyyy"); 
            String startDateString2 = df2.format(startDate);
            System.out.println("Date in format dd/MM/yyyy: " + startDateString2);
        }
    }

Output:

Date, with the default formatting: Wed Jun 27 00:00:00 BRT 2007
Date in format MM/dd/yyyy: 06/27/2007
Date in format dd/MM/yyyy: 27/06/2007

$("label[for='"+$(this).attr("id")+"']");

This should allow you to select labels for all the fields in a loop as well. All you need to ensure is your labels should say for='FIELD' where FIELD is the id of the field for which this label is being defined.

I suppose rgba() would work here. After all, browser support for both box-shadow and rgba() is roughly the same.

/* 50% black box shadow */
box-shadow: 10px 10px 10px rgba(0, 0, 0, 0.5);

div {_x000D_
    width: 200px;_x000D_
    height: 50px;_x000D_
    line-height: 50px;_x000D_
    text-align: center;_x000D_
    color: white;_x000D_
    background-color: red;_x000D_
    margin: 10px;_x000D_
}_x000D_
_x000D_
div.a {_x000D_
  box-shadow: 10px 10px 10px #000;_x000D_
}_x000D_
_x000D_
div.b {_x000D_
  box-shadow: 10px 10px 10px rgba(0, 0, 0, 0.5);_x000D_
}

<div class="a">100% black shadow</div>_x000D_
<div class="b">50% black shadow</div>

The important thing is one of the elements of calculation be a float-double type. Then to get a double result you need to cast this element like shown below:

c = static_cast<double>(a) / b;

or c = a / static_cast(b);

Or you can create it directly::

c = 7.0 / 3;

Note that one of elements of calculation must have the '.0' to indicate a division of a float-double type by an integer. Otherwise, despite the c variable be a double, the result will be zero too (an integer).

I'm relatively new to c# and brand new to stackoverflow. Anyway, regarding the question on how to access controls on a form from a class: I just used the ControlCollection (Controls) class of the form.

        //Add a new form called frmEditData to project.
        //Draw a textbox on it named txtTest; set the text to
        //something in design as a test.
        Form frmED =  new frmEditData();
        MessageBox.Show(frmED.Controls["txtTest"].Text);

Worked for me, maybe it will be of assistance in both questions.

JSON.stringify's third parameter defines white-space insertion for pretty-printing. It can be a string or a number (number of spaces). Node can write to your filesystem with fs. Example:

var fs = require('fs');

fs.writeFile('test.json', JSON.stringify({ a:1, b:2, c:3 }, null, 4));
/* test.json:
{
     "a": 1,
     "b": 2,
     "c": 3,
}
*/

See the JSON.stringify() docs at MDN, Node fs docs

Use the hashchange event:

window.addEventListener("hashchange", function(e) {
  // ...
})

If you need to support older browsers, check out the hashChange Event section in Modernizr's HTML5 Cross Browser Polyfills wiki page.

The OP added in his question:

the files checked out using msysgit are using CR+LF and I want to force msysgit to get them with LF

A first simple step would still be in a .gitattributes file:

# 2010
*.txt -crlf

# 2020
*.txt text eol=lf 

(as noted in the comments by grandchild, referring to .gitattributes End-of-line conversion), to avoid any CRLF conversion for files with correct eol.

And I have always recommended git config --global core.autocrlf false to disable any conversion (which would apply to all versioned files)

See Best practices for cross platform git config?

Since Git 2.16 (Q1 2018), you can use git add --renormalize . to apply those .gitattributes settings immediately.

But a second more powerful step involves a gitattribute filter driver and add a smudge step

Whenever you would update your working tree, a script could, only for the files you have specified in the .gitattributes, force the LF eol and any other formatting option you want to enforce.
If the "clear" script doesn't do anything, you will have (after commit) transformed your files, applying exactly the format you need them to follow.

Your requirements are all over the place, but this is the solution to my understanding of them:

To group by Reference property:

var refGroupQuery = (from m in context.Measurements
            group m by m.Reference into refGroup
            select refGroup);

Now you say you want to limit results by "most recent numOfEntries" - I take this to mean you want to limit the returned Measurements... in that case:

var limitedQuery = from g in refGroupQuery
                   select new
                   {
                       Reference = g.Key,
                       RecentMeasurements = g.OrderByDescending( p => p.CreationTime ).Take( numOfEntries )
                   }

To order groups by first Measurement creation time (note you should order the measurements; if you want the earliest CreationTime value, substitue "g.SomeProperty" with "g.CreationTime"):

var refGroupsOrderedByFirstCreationTimeQuery = limitedQuery.OrderBy( lq => lq.RecentMeasurements.OrderBy( g => g.SomeProperty ).First().CreationTime );

To order groups by average CreationTime, use the Ticks property of the DateTime struct:

var refGroupsOrderedByAvgCreationTimeQuery = limitedQuery.OrderBy( lq => lq.RecentMeasurements.Average( g => g.CreationTime.Ticks ) );

On Windows, if the debug.keystore file is not in the location (C:\Users\username\.android), the debug.keystore file may also be found in the location where you have installed Android Studio.

Use a colon:

: ${A:=hello}

The colon is a null command that does nothing and ignores its arguments. It is built into bash so a new process is not created.

If you are looking specifically for memory in JVM:

Runtime runtime = Runtime.getRuntime();

NumberFormat format = NumberFormat.getInstance();

StringBuilder sb = new StringBuilder();
long maxMemory = runtime.maxMemory();
long allocatedMemory = runtime.totalMemory();
long freeMemory = runtime.freeMemory();

sb.append("free memory: " + format.format(freeMemory / 1024) + "<br/>");
sb.append("allocated memory: " + format.format(allocatedMemory / 1024) + "<br/>");
sb.append("max memory: " + format.format(maxMemory / 1024) + "<br/>");
sb.append("total free memory: " + format.format((freeMemory + (maxMemory - allocatedMemory)) / 1024) + "<br/>");

However, these should be taken only as an estimate...

You will need to configure you IIS (assuming this is the web server your are/will using) allowing access from WLAN/LAN to specific users (or anonymous). Allow IIS trought your firewall if you have one.

Your application won't need to be changed, that's just networking problems ans configuration you will have to face to allow acces only trought LAN and WLAN.

Yes. As many have previously pointed out, I have added the src path to all the controller files in the index.html.

<script src="controllers/home.js"></script>_x000D_
<script src="controllers/detail.js"></script>_x000D_
<script src="controllers/login.js"></script>_x000D_
<script src="controllers/navbar.js"></script>_x000D_
<script src="controllers/signup.js"></script>

This fixed that error.

The problem is that t.join() blocks the click event, the main thread does not get back to the event loop to process repaints. See Why ttk Progressbar appears after process in Tkinter or TTK progress bar blocked when sending email

You can use <Text> like a container for your other text components. This is example:

...
<Text>
  <Text>This is a sentence</Text>
  <Text style={{fontWeight: "bold"}}> with</Text>
  <Text> one word in bold</Text>
</Text>
...

Here is an example.

If the line's coordinates are A.x, A.y and B.x, B.y and the circles center is C.x, C.y then the lines formulae are:

x = A.x * t + B.x * (1 - t)

y = A.y * t + B.y * (1 - t)

where 0<=t<=1

and the circle is

(C.x - x)^2 + (C.y - y)^2 = R^2

if you substitute x and y formulae of the line into the circles formula you get a second order equation of t and its solutions are the intersection points (if there are any). If you get a t which is smaller than 0 or greater than 1 then its not a solution but it shows that the line is 'pointing' to the direction of the circle.

I found two links of performance compare among several ways of converting string to int.

parseInt(str,10)    
parseFloat(str)
str << 0
+str
str*1 
str-0
Number(str)

http://jsben.ch/#/zGJHM

http://phrogz.net/js/string_to_number.html

In Access 2013 I've just tested this:

While ComboBox1.ListCount > 0
    ComboBox1.RemoveItem 0
Wend

Interestingly, if you set the item list in Properties, this is not lost when you exit Form View and go back to Design View.

Another way around it that may/may not suit but surely the simplest:

td {
    display: table-caption;
}

Updated for the Github Desktop

Search up "Edit the system environment variables" on windows search

• Click environmental variable on the bottom right corner

• Find path under system variables and click edit on it

• Click new to add a new path

• add this path: C:\Users\yourUserName\AppData\Local\GitHubDesktop\bin\github.exe

To make sure everything is working fine, open cmd, and type github.exe

I just installed Python 3.3 on Windows 7 using the option "add python to PATH".

In PATH variable, the installer automatically added a final backslash: C:\Python33\ and so it did not work on command prompt (i tried closing/opening the prompt several times)

I removed the final backslash and then it worked: C:\Python33

Thanks Ram Narasimhan for your tip #4 !

In my case I was missing 'www.' from the url I was pushing. It must be exact match, if you're working on www.test.com, you must push to www.test.com and not test.com

Try this: TO_DATE('2011-07-28T23:54:14Z', 'YYYY-MM-DD"T"HH24:MI:SS"Z"')

On a Mac, the idea.log is contained in

/Users/<user>/Library/Logs/AndroidStudio/idea.log

The new stable version (1.2) is in

/Users/<user>/Library/Logs/AndroidStudio1.2/

The new stable version (2.2) is in

/Users/<user>/Library/Logs/AndroidStudio2.2/

The new stable version (3.4) is in

/Users/<user>/Library/Logs/AndroidStudio3.4/

[ Solution ]

$ git push origin

^ this solved it for me. What it did, it synchronized my master (on laptop) with "origin" that's on the remote server.

Since this is the first google hit for the problem and I assume more people will search for this. There is a new option since Spring Boot '1.4.0'. It is now possible to define a custom RequestMappingHandlerMapping that allows to define a different path for classes annotated with @RestController

A different version with custom annotations that combines @RestController with @RequestMapping can be found at this blog post

@Configuration
public class WebConfig {

    @Bean
    public WebMvcRegistrationsAdapter webMvcRegistrationsHandlerMapping() {
        return new WebMvcRegistrationsAdapter() {
            @Override
            public RequestMappingHandlerMapping getRequestMappingHandlerMapping() {
                return new RequestMappingHandlerMapping() {
                    private final static String API_BASE_PATH = "api";

                    @Override
                    protected void registerHandlerMethod(Object handler, Method method, RequestMappingInfo mapping) {
                        Class<?> beanType = method.getDeclaringClass();
                        if (AnnotationUtils.findAnnotation(beanType, RestController.class) != null) {
                            PatternsRequestCondition apiPattern = new PatternsRequestCondition(API_BASE_PATH)
                                    .combine(mapping.getPatternsCondition());

                            mapping = new RequestMappingInfo(mapping.getName(), apiPattern,
                                    mapping.getMethodsCondition(), mapping.getParamsCondition(),
                                    mapping.getHeadersCondition(), mapping.getConsumesCondition(),
                                    mapping.getProducesCondition(), mapping.getCustomCondition());
                        }

                        super.registerHandlerMethod(handler, method, mapping);
                    }
                };
            }
        };
    }
}

If you want a version that raises an error:

"string to search".index("needle") 

If you want a version that returns -1:

"string to search".find("needle") 

This is more efficient than the 'in' syntax

In codeigniter there is no need to sennd "data" in ajax post method.. here is the example .

   searchThis = 'This text will be search';
    $.ajax({
      type: "POST",
      url: "<?php echo site_url();?>/software/search/"+searchThis,
      dataType: "html",
      success:function(data){
        alert(data);
      },

    });

Note : in url , software is the controller name , search is the function name and searchThis is the variable that i m sending.

Here is the controller.

    public function search(){
    $search = $this->uri->segment(3);
      echo '<p>'.$search.'</p>';
    }

I hope you can get idea for your work .

I always use Desktop first, mobile first doesn't have highest priority does it? IE< 8 will show mobile css..

normal css here: 

@media screen and (max-width: 768px) {}

@media screen and (max-width: 480px) {}

sometimes some custom sizes. I don't like bootstrap etc.

Signature Mismatch your Previous Present APP and new APK

So Please uninstall the previous app and gradlew clean and again install apk

react-native run-android

react-native run-ios

You can absolutely position pseudo elements relative to their parent element.

This gives you two extra layers to play with for every element - so positioning one image on top of another becomes easy - with minimal and semantic markup (no empty divs etc).

markup:

<div class="overlap"></div>

css:

.overlap
{
    width: 100px;
    height: 100px;
    position: relative;
    background-color: blue;
}
.overlap:after
{
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 5px;
    left: 5px;
    background-color: red;
}

Here's a LIVE DEMO

Based on this example I made following function:

import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText

def send_email(host, port, user, pwd, recipients, subject, body, html=None, from_=None):
    """ copied and adapted from
        https://stackoverflow.com/questions/10147455/how-to-send-an-email-with-gmail-as-provider-using-python#12424439
    returns None if all ok, but if problem then returns exception object
    """

    PORT_LIST = (25, 587, 465)

    FROM = from_ if from_ else user 
    TO = recipients if isinstance(recipients, (list, tuple)) else [recipients]
    SUBJECT = subject
    TEXT = body.encode("utf8") if isinstance(body, unicode) else body
    HTML = html.encode("utf8") if isinstance(html, unicode) else html

    if not html:
        # Prepare actual message
        message = """From: %s\nTo: %s\nSubject: %s\n\n%s
        """ % (FROM, ", ".join(TO), SUBJECT, TEXT)
    else:
                # https://stackoverflow.com/questions/882712/sending-html-email-using-python#882770
        msg = MIMEMultipart('alternative')
        msg['Subject'] = SUBJECT
        msg['From'] = FROM
        msg['To'] = ", ".join(TO)

        # Record the MIME types of both parts - text/plain and text/html.
        # utf-8 -> https://stackoverflow.com/questions/5910104/python-how-to-send-utf-8-e-mail#5910530
        part1 = MIMEText(TEXT, 'plain', "utf-8")
        part2 = MIMEText(HTML, 'html', "utf-8")

        # Attach parts into message container.
        # According to RFC 2046, the last part of a multipart message, in this case
        # the HTML message, is best and preferred.
        msg.attach(part1)
        msg.attach(part2)

        message = msg.as_string()


    try:
        if port not in PORT_LIST: 
            raise Exception("Port %s not one of %s" % (port, PORT_LIST))

        if port in (465,):
            server = smtplib.SMTP_SSL(host, port)
        else:
            server = smtplib.SMTP(host, port)

        # optional
        server.ehlo()

        if port in (587,): 
            server.starttls()

        server.login(user, pwd)
        server.sendmail(FROM, TO, message)
        server.close()
        # logger.info("SENT_EMAIL to %s: %s" % (recipients, subject))
    except Exception, ex:
        return ex

    return None

if you pass only body then plain text mail will be sent, but if you pass html argument along with body argument, html email will be sent (with fallback to text content for email clients that don't support html/mime types).

Example usage:

ex = send_email(
      host        = 'smtp.gmail.com'
   #, port        = 465 # OK
    , port        = 587  #OK
    , user        = "[email protected]"
    , pwd         = "xxx"
    , from_       = '[email protected]'
    , recipients  = ['[email protected]']
    , subject     = "Test from python"
    , body        = "Test from python - body"
    )
if ex: 
    print("Mail sending failed: %s" % ex)
else:
    print("OK - mail sent"

Btw. If you want to use gmail as testing or production SMTP server, enable temp or permanent access to less secured apps:

• login to google mail/account
• go to: https://myaccount.google.com/lesssecureapps
• enable
• send email using this function or similar
• (recommended) go to: https://myaccount.google.com/lesssecureapps
• (recommended) disable

Sorry to pile on to an old item. I found partial answers to my questions here but had to do some work so I wanted to share my results for the next person.

I ended up using the same approach as the other contributors, but with a few tweaks to fix the following

1. Long text was covering the arrows in the other solutions
2. The image being used was a somewhat old and ugly up/down combo arrow.

The below will give you a working solution with the above issues fixed. Note: I used a white arrow for my use case, you may need to change the color of the arrow for yours.

here's a preview:

select{    
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background: url(data:image/svg+xml;base64,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) no-repeat 101% 50%;
  padding-right:20px;
}

In this context, stratification means that the train_test_split method returns training and test subsets that have the same proportions of class labels as the input dataset.

I had the same problem, and the solution for me was to allow Maven to handle all dependencies, including to local jars. I used Maven for online dependencies, and configured build path manually for local dependencies. Thus, Maven was not aware of the dependencies I configured manually.

I used this solution to install the local jar dependencies into Maven:

How to add local jar files in maven project?

 Range<Long> timeRange = Range.create(model.getFrom(), model.getTo());
    if(timeRange.contains(systemtime)){
        Toast.makeText(context, "green!!", Toast.LENGTH_SHORT).show();
    }

I want to add the important hint that converting a project like this can have side effects which are noticeable when you have a larger project. This is due the fact that Intellij Idea (2017) takes some important settings only from the pom.xml then which can lead to some confusion, following sections are affected at least:

1. Annotation settings are changed for the modules
2. Compiler output path is changed for the modules
3. Resources settings are ignored totally and only taken from pom.xml
4. Module dependencies are messed up and have to checked
5. Language/Encoding settings are changed for the modules

All these points need review and adjusting but after this it works like charm.

Further more unfortunately there is no sufficient pom.xml template created, I have added an example which might help to solve most problems.

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>Name</groupId>
<artifactId>Artifact</artifactId>
<version>4.0</version>
<properties>
    <!-- Generic properties -->
    <java.version>1.8</java.version>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>
<dependencies>
    <!--All dependencies to put here, including module dependencies-->
</dependencies>
<build>
    <directory>${project.basedir}/target</directory>
    <outputDirectory>${project.build.directory}/classes</outputDirectory>
    <testOutputDirectory>${project.build.directory}/test-classes</testOutputDirectory>
    <sourceDirectory>${project.basedir}/src/main/java</sourceDirectory>
    <testSourceDirectory> ${project.basedir}/src/test/java</testSourceDirectory>

    <resources>
        <resource>
            <directory>${project.basedir}/src/main/java</directory>
            <excludes>
                <exclude>**/*.java</exclude>
            </excludes>
        </resource>
        <resource>
            <directory>${project.basedir}/src/main/resources</directory>
            <includes>
                <include>**/*</include>
            </includes>
        </resource>
    </resources>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.5.1</version>
            <configuration>
                <annotationProcessors/>
                <source>${java.version}</source>
                <target>${java.version}</target>
            </configuration>
        </plugin>
    </plugins>
</build>

Edit 2019:

• Added recursive resource scan
• Added directory specification which might be important to avoid confusion of IDEA recarding the content root structure

"Is there a good way to handle this problem?" No. Nothing can be protected against reverse engineering. Even the firmware on DVD machines has been reverse engineered and the AACS Encryption key exposed. And that's in spite of the DMCA making that a criminal offense.

Since no technical method can stop your customers from reading your code, you have to apply ordinary commercial methods.

1. Licenses. Contracts. Terms and Conditions. This still works even when people can read the code. Note that some of your Python-based components may require that you pay fees before you sell software using those components. Also, some open-source licenses prohibit you from concealing the source or origins of that component.

2. Offer significant value. If your stuff is so good -- at a price that is hard to refuse -- there's no incentive to waste time and money reverse engineering anything. Reverse engineering is expensive. Make your product slightly less expensive.

3. Offer upgrades and enhancements that make any reverse engineering a bad idea. When the next release breaks their reverse engineering, there's no point. This can be carried to absurd extremes, but you should offer new features that make the next release more valuable than reverse engineering.

4. Offer customization at rates so attractive that they'd rather pay you to build and support the enhancements.

5. Use a license key which expires. This is cruel, and will give you a bad reputation, but it certainly makes your software stop working.

6. Offer it as a web service. SaaS involves no downloads to customers.

For my Android projects I've used the Base64 library from here:

http://iharder.net/base64

It's a very extensive library and so far I've had no problems with it.

If your form is PHP based, it would work this way within your " <?php $data = array(" code:

    'onkeypress' => 'return /[a-z 0-9]/i.test(event.key)', 

You need some form of iteration here, as val (except when called with a function) only works on the first element:

$("input[placeholder]").val($("input[placeholder]").attr("placeholder"));

should be:

$("input[placeholder]").each( function () {
    $(this).val( $(this).attr("placeholder") );
});

or

$("input[placeholder]").val(function() {
    return $(this).attr("placeholder");
});

(Posted on behalf of the OP).

I believe I figured it out.

In my case, I added [class*="col-"] {padding: 0 7.5px;};.

Then added .row {margin: 0 -7.5px;}.

This works pretty well, except there is 1px margin on both sides. So I just make .row {margin: 0 -7.5px;} to .row {margin: 0 -8.5px;}, then it works perfectly.

I have no idea why there is a 1px margin. Maybe someone can explain it?

See the sample I created:

Demo
Code

Increase the font-size of glyphicon to increase all icons size.

.glyphicon {
    font-size: 50px;
}

To target only one icon,

.glyphicon.glyphicon-globe {
    font-size: 75px;
}

The correct options are (in increasing order of recommendation):

# Single POSIX test command with -o operator (not recommended anymore).
# Quotes strongly recommended to guard against empty or undefined variables.
while [ "$stats" -gt 300 -o "$stats" -eq 0 ]

# Two POSIX test commands joined in a list with ||.
# Quotes strongly recommended to guard against empty or undefined variables.
while [ "$stats" -gt 300 ] || [ "$stats" -eq 0 ]

# Two bash conditional expressions joined in a list with ||.
while [[ $stats -gt 300 ]] || [[ $stats -eq 0 ]]

# A single bash conditional expression with the || operator.
while [[ $stats -gt 300 || $stats -eq 0 ]]

# Two bash arithmetic expressions joined in a list with ||.
# $ optional, as a string can only be interpreted as a variable
while (( stats > 300 )) || (( stats == 0 ))

# And finally, a single bash arithmetic expression with the || operator.
# $ optional, as a string can only be interpreted as a variable
while (( stats > 300 || stats == 0 ))

Some notes:

1. Quoting the parameter expansions inside [[ ... ]] and ((...)) is optional; if the variable is not set, -gt and -eq will assume a value of 0.

2. Using $ is optional inside (( ... )), but using it can help avoid unintentional errors. If stats isn't set, then (( stats > 300 )) will assume stats == 0, but (( $stats > 300 )) will produce a syntax error.

Here is a more comprehensive method that can also accept full month names

def month_string_to_number(string):
    m = {
        'jan': 1,
        'feb': 2,
        'mar': 3,
        'apr':4,
         'may':5,
         'jun':6,
         'jul':7,
         'aug':8,
         'sep':9,
         'oct':10,
         'nov':11,
         'dec':12
        }
    s = string.strip()[:3].lower()

    try:
        out = m[s]
        return out
    except:
        raise ValueError('Not a month')

example:

>>> month_string_to_number("October")
10 
>>> month_string_to_number("oct")
10

Using ApplicationContextAware is tying you to Spring (which may or may not be an issue). I would recommend passing in a LoginActionFactory, which you can ask for a new instance of a LoginAction each time you need one.

Contributing with a minified polyfill for window.atob + window.btoa that I'm currently using.

(function(){function t(t){this.message=t}var e="undefined"!=typeof exports?exports:this,r="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";t.prototype=Error(),t.prototype.name="InvalidCharacterError",e.btoa||(e.btoa=function(e){for(var o,n,a=0,i=r,c="";e.charAt(0|a)||(i="=",a%1);c+=i.charAt(63&o>>8-8*(a%1))){if(n=e.charCodeAt(a+=.75),n>255)throw new t("'btoa' failed: The string to be encoded contains characters outside of the Latin1 range.");o=o<<8|n}return c}),e.atob||(e.atob=function(e){if(e=e.replace(/=+$/,""),1==e.length%4)throw new t("'atob' failed: The string to be decoded is not correctly encoded.");for(var o,n,a=0,i=0,c="";n=e.charAt(i++);~n&&(o=a%4?64*o+n:n,a++%4)?c+=String.fromCharCode(255&o>>(6&-2*a)):0)n=r.indexOf(n);return c})})();

try .\properties\files\ListStopWords.txt

I found an easy way using the new callback refs. You can just pass a callback as a prop to the child component. Like this:

class Container extends React.Component {
  constructor(props) {
    super(props)
    this.setRef = this.setRef.bind(this)
  }

  setRef(node) {
    this.childRef = node
  }

  render() {
    return <Child setRef={ this.setRef }/>
  }
}

const Child = ({ setRef }) => (
    <div ref={ setRef }>
    </div>
)

Here's an example of doing this with a modal:

class Container extends React.Component {
  constructor(props) {
    super(props)
    this.state = {
      modalOpen: false
    }
    this.open = this.open.bind(this)
    this.close = this.close.bind(this)
    this.setModal = this.setModal.bind(this)
  }

  open() {
    this.setState({ open: true })
  }

  close(event) {
    if (!this.modal.contains(event.target)) {
      this.setState({ open: false })
    }
  }

  setModal(node) {
    this.modal = node
  }

  render() {
    let { modalOpen } = this.state
    return (
      <div>
        <button onClick={ this.open }>Open</button>
        {
          modalOpen ? <Modal close={ this.close } setModal={ this.setModal }/> : null
        }
      </div>
    )
  }
}

const Modal = ({ close, setModal }) => (
  <div className='modal' onClick={ close }>
    <div className='modal-window' ref={ setModal }>
    </div>
  </div>
)

for .net core 2.0 Nginx with SSL

location / {
    # redirect all HTTP traffic to localhost:8080
    proxy_pass http://localhost:8080;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

    # WebSocket support
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection $http_connection;
}

This worked for me

it's nilin Ruby, not null. And it's enough to say if @objectname to test whether it's not nil. And no then. You can find more on if syntax here:

http://en.wikibooks.org/wiki/Ruby_Programming/Syntax/Control_Structures#if

Projection: what ever typed in select clause i.e, 'column list' or '*' or 'expressions' that becomes under projection.

*selection:*what type of conditions we are applying on that columns i.e, getting the records that comes under selection.

For example:

  SELECT empno,ename,dno,job from Emp 
     WHERE job='CLERK'; 

in the above query the columns "empno,ename,dno,job" those comes under projection, "where job='clerk'" comes under selection

This looks like a design flaw.

Remove the static keyword and set the variable for example in the constructor. This way Son just sets the variable to a different value in his constructor.

If you mean that you can do this:

CREATE TABLE mytable_d (
ID          TINYINT NOT NULL AUTO_INCREMENT PRIMARY KEY,
Name        VARCHAR(255) NOT NULL,
UNIQUE(Name)
) ENGINE=InnoDB;


ALTER TABLE mytable
ADD COLUMN DID tinyint(5) NOT NULL,
ADD CONSTRAINT mytable_ibfk_4 
      FOREIGN KEY (DID) 
        REFERENCES mytable_d (ID) ON DELETE CASCADE;

 > OK.

But then:

ALTER TABLE mytable
DROP KEY AID ;

gives error.

You can drop the index and create a new one in one ALTER TABLE statement:

ALTER TABLE mytable
DROP KEY AID ,
ADD UNIQUE KEY AID (AID, BID, CID, DID);

Do this if you absolutely need to use the -Format option:

$dateStr = Get-Date $date -Format "yyyMMdd"

However

$dateStr = $date.toString('yyyMMdd')

is probably more efficient.. :)

After looking through various answers here and not having any success, I combed through the WebKit documentation and stumbled upon the requestHeaderFields static method on HTTPCookie, which converts an array of cookies into a format suitable for a header field. Combining this with mattr's insight of updating the URLRequest before loading it with the cookie headers got me through the finish line.

Swift 4.1, 4.2, 5.0:

var request = URLRequest(url: URL(string: "https://example.com/")!)
let headers = HTTPCookie.requestHeaderFields(with: cookies)
for (name, value) in headers {
    request.addValue(value, forHTTPHeaderField: name)
}

let webView = WKWebView(frame: self.view.frame)
webView.load(request)

To make this even simpler, use an extension:

extension WKWebView {
    func load(_ request: URLRequest, with cookies: [HTTPCookie]) {
        var request = request
        let headers = HTTPCookie.requestHeaderFields(with: cookies)
        for (name, value) in headers {
            request.addValue(value, forHTTPHeaderField: name)
        }

        load(request)
    }
}

Now it just becomes:

let request = URLRequest(url: URL(string: "https://example.com/")!)
let webView = WKWebView(frame: self.view.frame)
webView.load(request, with: cookies)

This extension is also available in LionheartExtensions if you just want a drop-in solution. Cheers!

To concatenate two strings in 2008 or prior:

SELECT ISNULL(FirstName, '') + ' ' + ISNULL(SurName, '')

good to use ISNULL because "String + NULL" will give you a NULL only

One more thing: Make sure you are concatenating strings otherwise use a CAST operator:

SELECT 2 + 3 

Will give 5

SELECT '2' + '3'

Will give 23

Something along the lines:

<VirtualHost hostname:80>
   ...
   SetEnv VARIABLE_NAME variable_value
   ...
</VirtualHost>

Try out cat and sprintf in your for loop.

eg.

cat(sprintf("\"%f\" \"%f\"\n", df$r, df$interest))

See here

It looks like you indented so_far = new too much. Try this:

if guess in word:
    print("\nYes!", guess, "is in the word!")

    # Create a new variable (so_far) to contain the guess
    new = ""
    i = 0
    for i in range(len(word)):
        if guess == word[i]:
            new += guess
        else:
            new += so_far[i]
    so_far = new # unindented this

Aggregate in a subquery derived table and then join to it.

 Select Date, User, Status, Notes 
    from [SOMETABLE]
    inner join 
    (
        Select max(Date) as LatestDate, [User]
        from [SOMETABLE]
        Group by User
    ) SubMax 
    on [SOMETABLE].Date = SubMax.LatestDate
    and [SOMETABLE].User = SubMax.User 

To avoid an input with only spaces, use: "[a-zA-Z0-9]+[a-zA-Z0-9 ]+".

eg: abc | abc aBc | abc 123 AbC 938234

To ensure, for example, that a first AND last name are entered, use a slight variation like

"[a-zA-Z]+[ ][a-zA-Z]+"

eg: abc def

You have to add options also in allowed headers. browser sends a preflight request before original request is sent. See below

 res.header('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE,PATCH,OPTIONS');

From source https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/OPTIONS

In CORS, a preflight request with the OPTIONS method is sent, so that the server can respond whether it is acceptable to send the request with these parameters. The Access-Control-Request-Method header notifies the server as part of a preflight request that when the actual request is sent, it will be sent with a POST request method. The Access-Control-Request-Headers header notifies the server that when the actual request is sent, it will be sent with a X-PINGOTHER and Content-Type custom headers. The server now has an opportunity to determine whether it wishes to accept a request under these circumstances.

EDITED

You can avoid this manual configuration by using npmjs.com/package/cors npm package.I have used this method also, it is clear and easy.

mvn install (or mvn package) will always work.

You can use mvn compile to download compile time dependencies or mvn test for compile time and test dependencies but I prefer something that always works.

In the given example, simply used double quotes instead of single quotes as outer escape mechanism:

alias rxvt="urxvt -fg '#111111' -bg '#111111'"

This approach is suited for many cases where you just want to pass a fixed string to a command: Just check how the shell will interpret the double-quoted string through an echo, and escape characters with backslash if necessary.

In the example, you'd see that double quotes are sufficient to protect the string:

$ echo "urxvt -fg '#111111' -bg '#111111'"
urxvt -fg '#111111' -bg '#111111'

Just get the class attribute:

var div1Class = $('#div1').attr('class');

Example

<div id="div1" class="accordion accordion_active">

To check the above div for classes contained in it

var a = ("#div1").attr('class'); 
console.log(a);

console output

accordion accordion_active

sys.argv is a attribute of the sys module. It says the arguments passed into the file in the command line. sys.argv[0] catches the directory where the file is located. sys.argv[1] returns the first argument passed in the command line. Think like we have a example.py file.

example.py

import sys # Importing the main sys module to catch the arguments
print(sys.argv[1]) # Printing the first argument

Now here in the command prompt when we do this:

python example.py

It will throw a index error at line 2. Cause there is no argument passed yet. You can see the length of the arguments passed by user using if len(sys.argv) >= 1: # Code. If we run the example.py with passing a argument

python example.py args

It prints:

args

Because it was the first arguement! Let's say we have made it a executable file using PyInstaller. We would do this:

example argumentpassed

It prints:

argumentpassed

It's really helpful when you are making a command in the terminal. First check the length of the arguments. If no arguments passed, do the help text.

You could try to save the image using this approach

SaveFileDialog dialog = new SaveFileDialog();
if (dialog.ShowDialog() == DialogResult.OK)
{
   int width = Convert.ToInt32(drawImage.Width); 
   int height = Convert.ToInt32(drawImage.Height); 
   Bitmap bmp = new Bitmap(width,height);        
   drawImage.DrawToBitmap(bmp, new Rectangle(0, 0, width, height);
   bmp.Save(dialog.FileName, ImageFormat.Jpeg);
}

In your component i.e angular js code:

function getthefile (){
window.location.href='http://localhost:1036/CourseRegConfirm/getfile';
};

from pandas import DataFrame
import pandas as pd

d = {'one':[2,3,1,4,5],
 'two':[5,4,3,2,1],
 'letter':['a','a','b','b','c']}

df = DataFrame(d)

test = df.sort_values(['one'], ascending=False)
test

Try this:

<SCRIPT LANGUAGE="JavaScript">
 function WriteToFile(passForm) {

    set fso = CreateObject("Scripting.FileSystemObject");  
    set s = fso.CreateTextFile("C:\test.txt", True);
    s.writeline("HI");
    s.writeline("Bye");
    s.writeline("-----------------------------");
    s.Close();
 }
  </SCRIPT>

</head>

<body>
<p>To sign up for the Excel workshop please fill out the form below:
</p>
<form onSubmit="WriteToFile(this)">
Type your first name:
<input type="text" name="FirstName" size="20">
<br>Type your last name:
<input type="text" name="LastName" size="20">
<br>
<input type="submit" value="submit">
</form> 

This will work only on IE

#!/bin/bash
cd "$(dirname "$0")"

Note that if you only need one column from the table then using 'lists' is quite nice. In my case i am retrieving a user's favourite articles but i only want the article id's:

$favourites = $user->favourites->lists('id');

Returns an array of ids, eg:

Array
(
    [0] => 3
    [1] => 7
    [2] => 8
)

I solved this problem by adding extraData={this.state} Please check code below for more detail

render() {
    return (
      <View style={styles.container}>
        <FlatList
          data={this.state.arr}
          extraData={this.state}
          renderItem={({ item }) => <Text style={styles.item}>{item}</Text>}
        />
      </View>
    );
  }

TLDR: use theString = theString.replace("\\", "\\\\"); instead.

Problem

replaceAll(target, replacement) uses regular expression (regex) syntax for target and partially for replacement.

Problem is that \ is special character in regex (it can be used like \d to represents digit) and in String literal (it can be used like "\n" to represent line separator or \" to escape double quote symbol which normally would represent end of string literal).

In both these cases to create \ symbol we can escape it (make it literal instead of special character) by placing additional \ before it (like we escape " in string literals via \").

So to target regex representing \ symbol will need to hold \\, and string literal representing such text will need to look like "\\\\".

So we escaped \ twice:

• once in regex \\
• once in String literal "\\\\" (each \ is represented as "\\").

In case of replacement \ is also special there. It allows us to escape other special character $ which via $x notation, allows us to use portion of data matched by regex and held by capturing group indexed as x, like "012".replaceAll("(\\d)", "$1$1") will match each digit, place it in capturing group 1 and $1$1 will replace it with its two copies (it will duplicate it) resulting in "001122".

So again, to let replacement represent \ literal we need to escape it with additional \ which means that:

• replacement must hold two backslash characters \\
• and String literal which represents \\ looks like "\\\\"

BUT since we want replacement to hold two backslashes we will need "\\\\\\\\" (each \ represented by one "\\\\").

So version with replaceAll can look like

replaceAll("\\\\", "\\\\\\\\");

Easier way

To make out life easier Java provides tools to automatically escape text into target and replacement parts. So now we can focus only on strings, and forget about regex syntax:

replaceAll(Pattern.quote(target), Matcher.quoteReplacement(replacement))

which in our case can look like

replaceAll(Pattern.quote("\\"), Matcher.quoteReplacement("\\\\"))

Even better

If we don't really need regex syntax support lets not involve replaceAll at all. Instead lets use replace. Both methods will replace all targets, but replace doesn't involve regex syntax. So you could simply write

theString = theString.replace("\\", "\\\\");