As the error message says, you have an inline style, which CSP prohibits. I see at least one (list-style: none) in your HTML. Put that style in your CSS file instead.

To explain further, Content Security Policy does not allow inline CSS because it could be dangerous. From An Introduction to Content Security Policy:

"If an attacker can inject a script tag that directly contains some malicious payload .. the browser has no mechanism by which to distinguish it from a legitimate inline script tag. CSP solves this problem by banning inline script entirely: it’s the only way to be sure."

Work with jquery on load (cross browser):

 <iframe src="your_url" marginwidth="0"  marginheight="0" scrolling="No" frameborder="0"  hspace="0" vspace="0" id="containiframe" onload="loaderIframe();" height="100%"  width="100%"></iframe>

function loaderIframe(){
var heightIframe = $('#containiframe').contents().find('body').height();
$('#frame').css("height", heightFrame);
 }  

on resize in responsive page:

$(window).resize(function(){
if($('#containiframe').length !== 0) {
var heightIframe = $('#containiframe').contents().find('body').height();
 $('#frame').css("height", heightFrame);
}
});

This would do the trick, returning the values at indeces 0, 2 and 3.

Array.FindAll(arr, Function(s) s.ToLower().StartsWith("ra"))

Hmmm. There was an answer with a list comprehension here, but it's disappeared.

Here:

 [i for i,x in enumerate(testlist) if x == 1]

Example:

>>> testlist
[1, 2, 3, 5, 3, 1, 2, 1, 6]
>>> [i for i,x in enumerate(testlist) if x == 1]
[0, 5, 7]

Update:

Okay, you want a generator expression, we'll have a generator expression. Here's the list comprehension again, in a for loop:

>>> for i in [i for i,x in enumerate(testlist) if x == 1]:
...     print i
... 
0
5
7

Now we'll construct a generator...

>>> (i for i,x in enumerate(testlist) if x == 1)
<generator object at 0x6b508>
>>> for i in (i for i,x in enumerate(testlist) if x == 1):
...     print i
... 
0
5
7

and niftily enough, we can assign that to a variable, and use it from there...

>>> gen = (i for i,x in enumerate(testlist) if x == 1)
>>> for i in gen: print i
... 
0
5
7

And to think I used to write FORTRAN.

Can add disable like below and can get data on submit. something like this .. DEMO

Html

<input type="hidden" name="email" value="email" />
<input type="text" id="dis" class="disable" value="email"   name="email" >

JS

 $("#dis").attr('disabled','disabled');

CSS

    .disable { opacity : .35; background-color:lightgray; border:1px solid gray;}

• Does not matter for inner joins

• Matters for outer joins

  a. WHERE clause: After joining. Records will be filtered after join has taken place.

  b. ON clause - Before joining. Records (from right table) will be filtered before joining. This may end up as null in the result (since OUTER join).

Example: Consider the below tables:

    1. documents:
     | id    | name        |
     --------|-------------|
     | 1     | Document1   |
     | 2     | Document2   |
     | 3     | Document3   |
     | 4     | Document4   |
     | 5     | Document5   |


    2. downloads:
     | id   | document_id   | username |
     |------|---------------|----------|
     | 1    | 1             | sandeep  |
     | 2    | 1             | simi     |
     | 3    | 2             | sandeep  |
     | 4    | 2             | reya     |
     | 5    | 3             | simi     |

a) Inside WHERE clause:

  SELECT documents.name, downloads.id
    FROM documents
    LEFT OUTER JOIN downloads
      ON documents.id = downloads.document_id
    WHERE username = 'sandeep'

 For above query the intermediate join table will look like this.

    | id(from documents) | name         | id (from downloads) | document_id | username |
    |--------------------|--------------|---------------------|-------------|----------|
    | 1                  | Document1    | 1                   | 1           | sandeep  |
    | 1                  | Document1    | 2                   | 1           | simi     |
    | 2                  | Document2    | 3                   | 2           | sandeep  |
    | 2                  | Document2    | 4                   | 2           | reya     |
    | 3                  | Document3    | 5                   | 3           | simi     |
    | 4                  | Document4    | NULL                | NULL        | NULL     |
    | 5                  | Document5    | NULL                | NULL        | NULL     |

  After applying the `WHERE` clause and selecting the listed attributes, the result will be: 

   | name         | id |
   |--------------|----|
   | Document1    | 1  |
   | Document2    | 3  | 

b) Inside JOIN clause

  SELECT documents.name, downloads.id
  FROM documents
    LEFT OUTER JOIN downloads
      ON documents.id = downloads.document_id
        AND username = 'sandeep'

For above query the intermediate join table will look like this.

    | id(from documents) | name         | id (from downloads) | document_id | username |
    |--------------------|--------------|---------------------|-------------|----------|
    | 1                  | Document1    | 1                   | 1           | sandeep  |
    | 2                  | Document2    | 3                   | 2           | sandeep  |
    | 3                  | Document3    | NULL                | NULL        | NULL     |
    | 4                  | Document4    | NULL                | NULL        | NULL     |
    | 5                  | Document5    | NULL                | NULL        | NULL     |

Notice how the rows in `documents` that did not match both the conditions are populated with `NULL` values.

After Selecting the listed attributes, the result will be: 

   | name       | id   |
   |------------|------|
   |  Document1 | 1    |
   |  Document2 | 3    | 
   |  Document3 | NULL |
   |  Document4 | NULL | 
   |  Document5 | NULL | 

I've been working on this problem for my own site and feel like I've come up with a pretty good solution

1) Assign time zones to all states with only one timezone (most states)

and then either

2a) use the js solution (Javascript/PHP and timezones) for the remaining states

or

2b) use a database like the one linked above by @Doug.

This way, you can find tz cheaply (and highly accurately!) for the majority of your users and then use one of the other, more expensive methods to get it for the rest of the states.

Not super elegant, but seemed better to me than using js or a database for each and every user.

Use String.format (or java.util.Formatter):

Timestamp timestamp = ...
String.format("%1$TD %1$TT", timestamp)

EDIT:
please see the documentation of Formatter to know what TD and TT means: click on java.util.Formatter

The first 'T' stands for:

't', 'T'    date/time   Prefix for date and time conversion characters.

and the character following that 'T':

'T'     Time formatted for the 24-hour clock as "%tH:%tM:%tS".
'D'     Date formatted as "%tm/%td/%ty". 

From this forum post

persist() is well defined. It makes a transient instance persistent. However, it doesn't guarantee that the identifier value will be assigned to the persistent instance immediately, the assignment might happen at flush time. The spec doesn't say that, which is the problem I have with persist().

persist() also guarantees that it will not execute an INSERT statement if it is called outside of transaction boundaries. This is useful in long-running conversations with an extended Session/persistence context.

A method like persist() is required.

save() does not guarantee the same, it returns an identifier, and if an INSERT has to be executed to get the identifier (e.g. "identity" generator, not "sequence"), this INSERT happens immediately, no matter if you are inside or outside of a transaction. This is not good in a long-running conversation with an extended Session/persistence context.

This works for me using JsonConvert

var result = JsonConvert.DeserializeObject<Class>(responseString);

MOST EFFECTIVE WAY!

public static void main(String args[])
{
    int [] array = new int[10];//creates an array named array to hold 10 int's
    for(int x: array)//for-each loop!
      x = ((int)(Math.random()*100+1));
    Array.sort(array);
    for(int x: array)
      System.out.println(x+" ");
}

This awnser solved my problem. Below is a copy of it:

Make sure to start you JVM with -Dfile.encoding=UTF-8. You JVM defaults to the operating system charset

This is a JVM argument which could be added, for example, either to JBoss standalone or JBoss running from Eclipse.

In my case, this problem happened isolatelly on only one of my team people's computer. All the others was working without this problem.

If you just want to snag the schema and make an empty table out of it, use a false predicate, like so:

SELECT * INTO myNewTable FROM myView WHERE 1=2

cd /Library/Ruby/Gems/2.0.0

open .

right click get info

click lock

place password

make everything read and write.

As a supplement,

1, Carriage return: It's a printer terminology meaning changing the print location to the beginning of current line. In computer world, it means return to the beginning of current line in most cases but stands for new line rarely.

2, Line feed: It's a printer terminology meaning advancing the paper one line. So Carriage return and Line feed are used together to start to print at the beginning of a new line. In computer world, it generally has the same meaning as newline.

3, Form feed: It's a printer terminology, I like the explanation in this thread.

If you were programming for a 1980s-style printer, it would eject the paper and start a new page. You are virtually certain to never need it.

http://en.wikipedia.org/wiki/Form_feed

It's almost obsolete and you can refer to Escape sequence \f - form feed - what exactly is it? for detailed explanation.

Note, we can use CR or LF or CRLF to stand for newline in some platforms but newline can't be stood by them in some other platforms. Refer to wiki Newline for details.

LF: Multics, Unix and Unix-like systems (Linux, OS X, FreeBSD, AIX, Xenix, etc.), BeOS, Amiga, RISC OS, and others

CR: Commodore 8-bit machines, Acorn BBC, ZX Spectrum, TRS-80, Apple II family, Oberon, the classic Mac OS up to version 9, MIT Lisp Machine and OS-9

RS: QNX pre-POSIX implementation

0x9B: Atari 8-bit machines using ATASCII variant of ASCII (155 in decimal)

CR+LF: Microsoft Windows, DOS (MS-DOS, PC DOS, etc.), DEC TOPS-10, RT-11, CP/M, MP/M, Atari TOS, OS/2, Symbian OS, Palm OS, Amstrad CPC, and most other early non-Unix and non-IBM OSes

LF+CR: Acorn BBC and RISC OS spooled text output.

You can prevent printing a stack trace for KeyboardInterrupt, without try: ... except KeyboardInterrupt: pass (the most obvious and propably "best" solution, but you already know it and asked for something else) by replacing sys.excepthook. Something like

def custom_excepthook(type, value, traceback):
    if type is KeyboardInterrupt:
        return # do nothing
    else:
        sys.__excepthook__(type, value, traceback)

char check1[10], check2[10];
int foo;

do{
  printf(">> ");
  scanf(" %s", check1);
  foo = strtol(check1, NULL, 10); // convert the string to decimal number
  sprintf(check2, "%d", foo); // re-convert "foo" to string for comparison
} while (!(strcmp(check1, check2) == 0 && 0 < foo && foo < 24)); // repeat if the input is not number

If the input is number, you can use foo as your input.

There is no single MVC pattern you could obey to. MVC just states more or less that you should not mingle data and view, so that e.g. views are responsible for holding data or classes which are processing data are directly affecting the view.

But nevertheless, the way Android deals with classes and resources, you're sometimes even forced to follow the MVC pattern. More complicated in my opinion are the activities which are responsible sometimes for the view, but nevertheless act as an controller in the same time.

If you define your views and layouts in the XML files, load your resources from the res folder, and if you avoid more or less to mingle these things in your code, then you're anyway following an MVC pattern.

Visual Studio Commmunity 2017 - dumpbin.exe became available once I installed the C++ profiling tools in Modify menu from the Visual Studio Installer.

%lld is the standard C99 way, but that doesn't work on the compiler that I'm using (mingw32-gcc v4.6.0). The way to do it on this compiler is: %I64d

So try this:

if(e%n==0)printf("%15I64d -> %1.16I64d\n",e, 4*pi);

and

scanf("%I64d", &n);

The only way I know of for doing this in a completely portable way is to use the defines in <inttypes.h>.

In your case, it would look like this:

scanf("%"SCNd64"", &n);
//...    
if(e%n==0)printf("%15"PRId64" -> %1.16"PRId64"\n",e, 4*pi);

It really is very ugly... but at least it is portable.

Indeed, as has been mentioned above (and elsewhere on SO), in order to convert the string to a date, you need a specific date of the month. From the as.Date() manual page:

If the date string does not specify the date completely, the returned answer may be system-specific. The most common behaviour is to assume that a missing year, month or day is the current one. If it specifies a date incorrectly, reliable implementations will give an error and the date is reported as NA. Unfortunately some common implementations (such as glibc) are unreliable and guess at the intended meaning.

A simple solution would be to paste the date "01" to each date and use strptime() to indicate it as the first day of that month.

For those seeking a little more background on processing dates and times in R:

In R, times use POSIXct and POSIXlt classes and dates use the Date class.

Dates are stored as the number of days since January 1st, 1970 and times are stored as the number of seconds since January 1st, 1970.

So, for example:

d <- as.Date("1971-01-01")
unclass(d)  # one year after 1970-01-01
# [1] 365

pct <- Sys.time()  # in POSIXct
unclass(pct)  # number of seconds since 1970-01-01
# [1] 1450276559
plt <- as.POSIXlt(pct)
up <- unclass(plt)  # up is now a list containing the components of time
names(up)
# [1] "sec"    "min"    "hour"   "mday"   "mon"    "year"   "wday"   "yday"   "isdst"  "zone"  
# [11] "gmtoff"
up$hour
# [1] 9

To perform operations on dates and times:

plt - as.POSIXlt(d)
# Time difference of 16420.61 days

And to process dates, you can use strptime() (borrowing these examples from the manual page):

strptime("20/2/06 11:16:16.683", "%d/%m/%y %H:%M:%OS")
# [1] "2006-02-20 11:16:16 EST"

# And in vectorized form:
dates <- c("1jan1960", "2jan1960", "31mar1960", "30jul1960")
strptime(dates, "%d%b%Y")
# [1] "1960-01-01 EST" "1960-01-02 EST" "1960-03-31 EST" "1960-07-30 EDT"

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

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

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

It is possible but, before git 2.9.3 (august 2016), a git push would print the full url used when pushing back to the cloned repo.
That would include your username and password!

But no more: See commit 68f3c07 (20 Jul 2016), and commit 882d49c (14 Jul 2016) by Jeff King (peff).
^{(Merged by Junio C Hamano -- gitster -- in commit 71076e1, 08 Aug 2016)}

push: anonymize URL in status output

Commit 47abd85 (fetch: Strip usernames from url's before storing them, 2009-04-17, Git 1.6.4) taught fetch to anonymize URLs.
The primary purpose there was to avoid sticking passwords in merge-commit messages, but as a side effect, we also avoid printing them to stderr.

The push side does not have the merge-commit problem, but it probably should avoid printing them to stderr. We can reuse the same anonymizing function.

Note that for this to come up, the credentials would have to appear either on the command line or in a git config file, neither of which is particularly secure.
So people should be switching to using credential helpers instead, which makes this problem go away.

But that's no excuse not to improve the situation for people who for whatever reason end up using credentials embedded in the URL.

If you want to achieve it in Dockerfile, below lines helps.

ARG git_personal_token
RUN git config --global url."https://${git_personal_token}:@github.com/".insteadOf "https://github.com/"
RUN git clone https://github.com/your/project.git /project

Then we can build with below argument.

docker build --build-arg git_personal_token={your_token} .

Rather than using Absolute path for IEDriverServer.exe, its better to use relative path in accordance to the project.

        DesiredCapabilities capabilities = DesiredCapabilities.internetExplorer();
        capabilities.setCapability(InternetExplorerDriver.INTRODUCE_FLAKINESS_BY_IGNORING_SECURITY_DOMAINS, true);
        File fil = new File("iDrivers\\IEDriverServer.exe");
        System.setProperty("webdriver.ie.driver", fil.getAbsolutePath());
        WebDriver driver = new InternetExplorerDriver(capabilities);        
        driver.get("https://www.irctc.co.in");          

Eulerian path must visit each edge exactly once, while Hamiltonian path must visit each vertex exactly once.

May be useful for some:

(a function that allow you to add the data to the form using an object, with override for existing inputs, if there is) [pure js]

(form is a dom el, and not a jquery object [jqryobj.get(0) if you need])

function addDataToForm(form, data) {
    if(typeof form === 'string') {
        if(form[0] === '#') form = form.slice(1);
        form = document.getElementById(form);
    }

    var keys = Object.keys(data);
    var name;
    var value;
    var input;

    for (var i = 0; i < keys.length; i++) {
        name = keys[i];
        // removing the inputs with the name if already exists [overide]
        // console.log(form);
        Array.prototype.forEach.call(form.elements, function (inpt) {
             if(inpt.name === name) {
                 inpt.parentNode.removeChild(inpt);
             }
        });

        value = data[name];
        input = document.createElement('input');
        input.setAttribute('name', name);
        input.setAttribute('value', value);
        input.setAttribute('type', 'hidden');

        form.appendChild(input);
    }

    return form;
}

Use :

addDataToForm(form, {
    'uri': window.location.href,
     'kpi_val': 150,
     //...
});

you can use it like that too

var form = addDataToForm('myFormId', {
    'uri': window.location.href,
     'kpi_val': 150,
     //...
});

you can add # if you like too ("#myformid").

Here is a simplified version (the gist) of Mick Cullen's answer -- in part to prove that it needn't be very complex to implement this; in part to give a quick reference for anyone who isn't interested in reading pages and pages of code.

You have to make you app use connect-busboy:

var busboy = require("connect-busboy");
app.use(busboy());

This will not do anything until you trigger it. Within the call that handles uploading, do the following:

app.post("/upload", function(req, res) {
    if(req.busboy) {
        req.busboy.on("file", function(fieldName, fileStream, fileName, encoding, mimeType) {
            //Handle file stream here
        });
        return req.pipe(req.busboy);
    }
    //Something went wrong -- busboy was not loaded
});

Let's break this down:

• You check if req.busboy is set (the middleware was loaded correctly)
• You set up a "file" listener on req.busboy
• You pipe the contents of req to req.busboy

Inside the file listener there are a couple of interesting things, but what really matters is the fileStream: this is a Readable, that can then be written to a file, like you usually would.

Pitfall: You must handle this Readable, or express will never respond to the request, see the busboy API (file section).

Valid autocomplete off

<script type="text/javascript">
    /* <![CDATA[ */
    document.write('<input type="text" id="cardNumber" name="cardNumber" autocom'+'plete="off"/>');
    /* ]]> */ 
</script>

Without Using Powermock .... See the example below based on Ben Glasser answer since it took me some time to figure it out ..hope that saves some times ...

Original Class :

public class AClazz {

    public void updateObject(CClazz cClazzObj) {
        log.debug("Bundler set.");
        cClazzObj.setBundler(new BClazz(cClazzObj, 10));
    } 
}

Modified Class :

@Slf4j
public class AClazz {

    public void updateObject(CClazz cClazzObj) {
        log.debug("Bundler set.");
        cClazzObj.setBundler(getBObject(cClazzObj, 10));
    }

    protected BClazz getBObject(CClazz cClazzObj, int i) {
        return new BClazz(cClazzObj, 10);
    }
 }

Test Class

public class AClazzTest {

    @InjectMocks
    @Spy
    private AClazz aClazzObj;

    @Mock
    private CClazz cClazzObj;

    @Mock
    private BClazz bClassObj;

    @Before
    public void setUp() throws Exception {
        Mockito.doReturn(bClassObj)
               .when(aClazzObj)
               .getBObject(Mockito.eq(cClazzObj), Mockito.anyInt());
    }

    @Test
    public void testConfigStrategy() {
        aClazzObj.updateObject(cClazzObj);

        Mockito.verify(cClazzObj, Mockito.times(1)).setBundler(bClassObj);
    }
}

I think this is what you're looking for.

List<String> columnData = new List<String>();

using(SqlConnection connection = new SqlConnection("conn_string"))
{
    connection.Open();
    string query = "SELECT Column1 FROM Table1";
    using(SqlCommand command = new SqlCommand(query, connection))
    {
        using (SqlDataReader reader = command.ExecuteReader())
        {
            while (reader.Read())
            {
                columnData.Add(reader.GetString(0));
            }         
        }
    }
}

Not tested, but this should work fine.

No, it's not.

Attributes are meta-data and stored in binary-form in the compiled assembly (that's also why you can only use simple types in them).

If you don't want to map the JSON by yourself, you can do it as follows:

RestTemplate restTemplate = new RestTemplate();
restTemplate.setMessageConverters(Arrays.asList(new MappingJackson2HttpMessageConverter()));
ResponseEntity<String> result = restTemplate.postForEntity(uri, yourObject, String.class);

in osx, i installed with brew, here is the setting that works for me

GOPATH="$HOME/my_go_work_space" //make sure you have this folder created

GOROOT="/usr/local/Cellar/go/1.10/libexec"

Since pip v1.5, (released Jan 1 2014: CHANGELOG, PR) you may also specify a subdirectory of a git repo to contain your module. The syntax looks like this:

pip install -e git+https://git.repo/some_repo.git#egg=my_subdir_pkg&subdirectory=my_subdir_pkg # install a python package from a repo subdirectory

Note: As a pip module author, ideally you'd probably want to publish your module in it's own top-level repo if you can. Yet this feature is helpful for some pre-existing repos that contain python modules in subdirectories. You might be forced to install them this way if they are not published to pypi too.

You Can Use Timedelta fuction for x time increase comparision.

>>> import datetime 

>>> now = datetime.datetime.now()
>>> after_10_min = now + datetime.timedelta(minutes = 10)
>>> now > after_10_min 

False

Just A combination of these answers this And Roger

Create a path where you want to copy the file and then use:

docker run -d -v hostpath:dockerimag

declare @t  tinyint
set @t =3
select right(replicate('0', 2) + cast(@t as varchar),2)

Ditto: on the cripping effect for numbers > 99

If you want to cater for 1-255 then you could use

select right(replicate('0', 2) + cast(@t as varchar),3)

But this would give you 001, 010, 100 etc

You're putting Integers in so Python is giving you an integer back:

>>> 10 / 90
0

If if you cast this to a float afterwards the rounding will have already been done, in other words, 0 integer will always become 0 float.

If you use floats on either side of the division then Python will give you the answer you expect.

>>> 10 / 90.0
0.1111111111111111

So in your case:

>>> float(20-10) / (100-10)
0.1111111111111111
>>> (20-10) / float(100-10)
0.1111111111111111

In my case, I had a repo with:

• requirements A,B,C,D in .json
• but only A,B,C in the .lock

In the meantime, A,B,C had newer versions with respect when the lock was generated.

For some reason, I deleted the "vendors" and wanted to do a composer install and failed with the message:

Warning: The lock file is not up to date with the latest changes in composer.json.
You may be getting outdated dependencies. Run update to update them.
Your requirements could not be resolved to an installable set of packages.

I tried to run the solution from Seldaek issuing a composer update vendorD/libraryD but composer insisted to update more things, so .lock had too changes seen my my git tool.

The solution I used was:

1. Delete all the vendors dir.
2. Temporarily remove the requirement VendorD/LibraryD from the .json.
3. run composer install.
4. Then delete the file .json and checkout it again from the repo (equivalent to re-adding the file, but avoiding potential whitespace changes).
5. Then run Seldaek's solution composer update vendorD/libraryD

It did install the library, but in addition, git diff showed me that in the .lock only the new things were added without editing the other ones.

(Thnx Seldaek for the pointer ;) )

You can use timeit.

Here is an example on how to test naive_func that takes parameter using Python REPL:

>>> import timeit                                                                                         

>>> def naive_func(x):                                                                                    
...     a = 0                                                                                             
...     for i in range(a):                                                                                
...         a += i                                                                                        
...     return a                                                                                          

>>> def wrapper(func, *args, **kwargs):                                                                   
...     def wrapper():                                                                                    
...         return func(*args, **kwargs)                                                                  
...     return wrapper                                                                                    

>>> wrapped = wrapper(naive_func, 1_000)                                                                  

>>> timeit.timeit(wrapped, number=1_000_000)                                                              
0.4458435332577161  

You don't need wrapper function if function doesn't have any parameters.

Cookies and Sessions are used to store information. Cookies are only stored on the client-side machine, while sessions get stored on the client as well as a server.

Session

A session creates a file in a temporary directory on the server where registered session variables and their values are stored. This data will be available to all pages on the site during that visit.

A session ends when the user closes the browser or after leaving the site, the server will terminate the session after a predetermined period of time, commonly 30 minutes duration.

Cookies

Cookies are text files stored on the client computer and they are kept of use tracking purposes. The server script sends a set of cookies to the browser. For example name, age, or identification number, etc. The browser stores this information on a local machine for future use.

When the next time the browser sends any request to the web server then it sends those cookies information to the server and the server uses that information to identify the user.

Find root build.gradle file and add google maven repo inside allprojects tag

repositories {
        mavenLocal()
        mavenCentral()
        maven {                                  // <-- Add this
            url 'https://maven.google.com/' 
            name 'Google'
        }
    } 

It's better to use specific version instead of variable version

compile 'com.android.support:appcompat-v7:27.0.0'

If you're using Android Plugin for Gradle 3.0.0 or latter version

repositories {
      mavenLocal()
      mavenCentral()
      google()        //---> Add this
} 

and inject dependency in this way :

implementation 'com.android.support:appcompat-v7:27.0.0'

For fine-grained timing on OS X, you should use mach_absolute_time( ) declared in <mach/mach_time.h>:

#include <mach/mach_time.h>
#include <stdint.h>

// Do some stuff to setup for timing
const uint64_t startTime = mach_absolute_time();
// Do some stuff that you want to time
const uint64_t endTime = mach_absolute_time();

// Time elapsed in Mach time units.
const uint64_t elapsedMTU = endTime - startTime;

// Get information for converting from MTU to nanoseconds
mach_timebase_info_data_t info;
if (mach_timebase_info(&info))
   handleErrorConditionIfYoureBeingCareful();

// Get elapsed time in nanoseconds:
const double elapsedNS = (double)elapsedMTU * (double)info.numer / (double)info.denom;

Of course the usual caveats about fine-grained measurements apply; you're probably best off invoking the routine under test many times, and averaging/taking a minimum/some other form of processing.

Additionally, please note that you may find it more useful to profile your application running using a tool like Shark. This won't give you exact timing information, but it will tell you what percentage of the application's time is being spent where, which is often more useful (but not always).

Update

You can now enable the Quick Boot option for Android Emulator. That will save emulator state, and it will start the emulator quickly on the next boot.

Click on Emulator edit button, then click Show Advanced Setting. Then enable Quick Boot like below screenshot.

Android Development Tools (ADT) 9.0.0 (or later) has a feature that allows you to save state of the AVD (emulator), and you can start your emulator instantly. You have to enable this feature while creating a new AVD or you can just create it later by editing the AVD.

Also I have increased the Device RAM Size to 1024 which results in a very fast emulator.

Refer to the given below screenshots for more information.

Creating a new AVD with the save snapshot feature.

Launching the emulator from the snapshot.

And for speeding up your emulator you can refer to Speed up your Android Emulator!:

Using ssd hard drive has too much impact and I recommend to use more suitable ram (8 or higher)

Any class which extends Exception class will be a user defined Checked exception class where as any class which extends RuntimeException will be Unchecked exception class. as mentioned in User defined exception are checked or unchecked exceptions So, not throwing the checked exception(be it user-defined or built-in exception) gives compile time error.

Checked exception are the exceptions that are checked at compile time.

Unchecked exception are the exceptions that are not checked at compiled time

The key difference is that Objects only support string and Symbol keys where as Maps support more or less any key type.

If I do obj[123] = true and then Object.keys(obj) then I will get ["123"] rather than [123]. A Map would preserve the type of the key and return [123] which is great. Maps also allow you to use Objects as keys. Traditionally to do this you would have to give objects some kind of unique identifier to hash them (I don't think I've ever seen anything like getObjectId in JS as part of the standard). Maps also guarantee preservation of order so are all round better for preservation and can sometimes save you needing to do a few sorts.

Between maps and objects in practice there are several pros and cons. Objects gain both advantages and disadvantages being very tightly integrated into the core of JavaScript which sets them apart from significantly Map beyond the difference in key support.

An immediate advantage is that you have syntactical support for Objects making it easy to access elements. You also have direct support for it with JSON. When used as a hash it's annoying to get an object without any properties at all. By default if you want to use Objects as a hash table they will be polluted and you will often have to call hasOwnProperty on them when accessing properties. You can see here how by default Objects are polluted and how to create hopefully unpolluted objects for use as hashes:

({}).toString
    toString() { [native code] }
JSON.parse('{}').toString
    toString() { [native code] }
(Object.create(null)).toString
    undefined
JSON.parse('{}', (k,v) => (typeof v === 'object' && Object.setPrototypeOf(v, null) ,v)).toString
    undefined

Pollution on objects is not only something that makes code more annoying, slower, etc but can also have potential consequences for security.

Objects are not pure hash tables but are trying to do more. You have headaches like hasOwnProperty, not being able to get the length easily (Object.keys(obj).length) and so on. Objects are not meant to purely be used as hash maps but as dynamic extensible Objects as well and so when you use them as pure hash tables problems arise.

Comparison/List of various common operations:

    Object:
       var o = {};
       var o = Object.create(null);
       o.key = 1;
       o.key += 10;
       for(let k in o) o[k]++;
       var sum = 0;
       for(let v of Object.values(m)) sum += v;
       if('key' in o);
       if(o.hasOwnProperty('key'));
       delete(o.key);
       Object.keys(o).length
    Map:
       var m = new Map();
       m.set('key', 1);
       m.set('key', m.get('key') + 10);
       m.foreach((k, v) => m.set(k, m.get(k) + 1));
       for(let k of m.keys()) m.set(k, m.get(k) + 1);
       var sum = 0;
       for(let v of m.values()) sum += v;
       if(m.has('key'));
       m.delete('key');
       m.size();

There are a few other options, approaches, methodologies, etc with varying ups and downs (performance, terse, portable, extendable, etc). Objects are a bit strange being core to the language so you have a lot of static methods for working with them.

Besides the advantage of Maps preserving key types as well as being able to support things like objects as keys they are isolated from the side effects that objects much have. A Map is a pure hash, there's no confusion about trying to be an object at the same time. Maps can also be easily extended with proxy functions. Object's currently have a Proxy class however performance and memory usage is grim, in fact creating your own proxy that looks like Map for Objects currently performs better than Proxy.

A substantial disadvantage for Maps is that they are not supported with JSON directly. Parsing is possible but has several hangups:

JSON.parse(str, (k,v) => {
    if(typeof v !== 'object') return v;
    let m = new Map();
    for(k in v) m.set(k, v[k]);
    return m;
});

The above will introduce a serious performance hit and will also not support any string keys. JSON encoding is even more difficult and problematic (this is one of many approaches):

// An alternative to this it to use a replacer in JSON.stringify.
Map.prototype.toJSON = function() {
    return JSON.stringify({
        keys: Array.from(this.keys()),
        values: Array.from(this.values())
    });
};

This is not so bad if you're purely using Maps but will have problems when you are mixing types or using non-scalar values as keys (not that JSON is perfect with that kind of issue as it is, IE circular object reference). I haven't tested it but chances are that it will severely hurt performance compared to stringify.

Other scripting languages often don't have such problems as they have explicit non-scalar types for Map, Object and Array. Web development is often a pain with non-scalar types where you have to deal with things like PHP merges Array/Map with Object using A/M for properties and JS merges Map/Object with Array extending M/O. Merging complex types is the devil's bane of high level scripting languages.

So far these are largely issues around implementation but performance for basic operations is important as well. Performance is also complex because it depends on engine and usage. Take my tests with a grain of salt as I cannot rule out any mistake (I have to rush this). You should also run your own tests to confirm as mine examine only very specific simple scenarios to give a rough indication only. According to tests in Chrome for very large objects/maps the performance for objects is worse because of delete which is apparently somehow proportionate to the number of keys rather than O(1):

Object Set Took: 146
Object Update Took: 7
Object Get Took: 4
Object Delete Took: 8239
Map Set Took: 80
Map Update Took: 51
Map Get Took: 40
Map Delete Took: 2

Chrome clearly has a strong advantage with getting and updating but the delete performance is horrific. Maps use a tiny amount more memory in this case (overhead) but with only one Object/Map being tested with millions of keys the impact of overhead for maps is not expressed well. With memory management objects also do seem to free earlier if I am reading the profile correctly which might be one benefit in favor of objects.

In Firefox for this particular benchmark it is a different story:

Object Set Took: 435
Object Update Took: 126
Object Get Took: 50
Object Delete Took: 2
Map Set Took: 63
Map Update Took: 59
Map Get Took: 33
Map Delete Took: 1

I should immediately point out that in this particular benchmark deleting from objects in Firefox is not causing any problems, however in other benchmarks it has caused problems especially when there are many keys just as in Chrome. Maps are clearly superior in Firefox for large collections.

However this is not the end of the story, what about many small objects or maps? I have done a quick benchmark of this but not an exhaustive one (setting/getting) of which performs best with a small number of keys in the above operations. This test is more about memory and initialization.

Map Create: 69    // new Map
Object Create: 34 // {}

Again these figures vary but basically Object has a good lead. In some cases the lead for Objects over maps is extreme (~10 times better) but on average it was around 2-3 times better. It seems extreme performance spikes can work both ways. I only tested this in Chrome and creation to profile memory usage and overhead. I was quite surprised to see that in Chrome it appears that Maps with one key use around 30 times more memory than Objects with one key.

For testing many small objects with all the above operations (4 keys):

Chrome Object Took: 61
Chrome Map Took: 67
Firefox Object Took: 54
Firefox Map Took: 139

In terms of memory allocation these behaved the same in terms of freeing/GC but Map used 5 times more memory. This test used 4 keys where as in the last test I only set one key so this would explain the reduction in memory overhead. I ran this test a few times and Map/Object are more or less neck and neck overall for Chrome in terms of overall speed. In Firefox for small Objects there is a definite performance advantage over maps overall.

This of course doesn't include the individual options which could vary wildly. I would not advice micro-optimizing with these figures. What you can get out of this is that as a rule of thumb, consider Maps more strongly for very large key value stores and objects for small key value stores.

Beyond that the best strategy with these two it to implement it and just make it work first. When profiling it is important to keep in mind that sometimes things that you wouldn't think would be slow when looking at them can be incredibly slow because of engine quirks as seen with the object key deletion case.

This is a clever little trick (that I think I've seen on SO before):

var str = "" + 1
var pad = "0000"
var ans = pad.substring(0, pad.length - str.length) + str

JavaScript is more forgiving than some languages if the second argument to substring is negative so it will "overflow correctly" (or incorrectly depending on how it's viewed):

That is, with the above:

• 1 -> "0001"
• 12345 -> "12345"

Supporting negative numbers is left as an exercise ;-)

Happy coding.

Yep :

Thread t = new Thread (new ParameterizedThreadStart(myMethod));
t.Start (myParameterObject);

This prevents file from being corrupted!

Just download the following jar!
Jar File
Download Page

import org.springframework.util.FileCopyUtils;

private static void copyFile(File source, File dest) throws IOException {
    //This is safe and don't corrupt files as FileOutputStream does
    File src = source;
    File destination = dest;
    FileCopyUtils.copy(src, destm);
}

You've got the ternary syntax x if x else '' - is that what you're after?

Okay, I am now connecting without the semaphore timeout problem.

If anyone reading ever encounters the same thing, I hope that this procedure works for you; but no promises; hey, it's windows.

In my case this was Windows 7

I got a little hint from This page on eHow; not sure if that might help anyone or not.

So anyway, this was the simple twenty three step procedure that worked for me

• Click on start button

• Choose Control Panel

• From Control Panel, choose Device Manger

• From Device Manager, choose Universal Serial Bus Controllers

• From Universal Serial Bus Controllers, click the little sideways triangle

• I cannot predict what you'll see on your computer, but on mine I get a long drop-down list

• Begin the investigation to figure out which one of these members of this list is the culprit...

  • On each member of the drop-down list, right-click on the name

  • A list will open, choose Properties

  • Guesswork time: using the various tabs near the top of the resulting window which opens, make a guess if this is the USB adapter driver which is choking your stuff with semaphore timeouts

• Once you have made the proper guess, then close the USB Root Hub Properties window (but leave the Device Manager window open).

• Physically disonnect anything and everything from that USB hub.

• Unplug it.

• Return your mouse pointer to that USB Root Hub in the list which you identified earlier.

• Right click again

• Choose Uninstall

• Let Windows do its thing

• Wait a little while

• Power Down the whole computer if you have the time; some say this is required. I think I got away without it.

• Plug the USB hub back into a USB connector on the PC

• If the list in the device manager blinks and does a few flash-bulbs, it's okay.

• Plug the BlueTooth connector back into the USB hub

• Let windows do its thing some more

• Within two minutes, I had a working COM port again, no semaphore timeouts.

Hope it works for anyone else who may be having a similar problem.

Sounds like you need to add the formatting to the WHERE:

SELECT users.id, DATE_FORMAT(users.signup_date, '%Y-%m-%d') 
FROM users 
WHERE DATE_FORMAT(users.signup_date, '%Y-%m-%d') = CURDATE()

See SQL Fiddle with Demo

Apache is an HTTP web server which serve as HTTP.

Apache Tomcat is a java servlet container. It features same as web server but is customized to execute java servlet and JSP pages.

If you want to search for documents that belong to a specific month, make sure to query like this:

// Anything greater than this month and less than the next month
db.posts.find({created_on: {$gte: new Date(2015, 6, 1), $lt: new Date(2015, 7, 1)}});

Avoid quering like below as much as possible.

// This may not find document with date as the last date of the month
db.posts.find({created_on: {$gte: new Date(2015, 6, 1), $lt: new Date(2015, 6, 30)}});

// don't do this too
db.posts.find({created_on: {$gte: new Date(2015, 6, 1), $lte: new Date(2015, 6, 30)}});

Try this :

$('#resetBtn').on('click', function(e){
    e.preventDefault();
    $("#myform")[0].reset.click();
}

Use the Stopwatch class.

Provides a set of methods and properties that you can use to accurately measure elapsed time.

There is some good info on implementing it here:

Performance Tests: Precise Run Time Measurements with System.Diagnostics.Stopwatch

It's really just a coding style. The compiler generates the exact same for both variants.

See also here for the performance question:

• Will using 'var' affect performance?

Even later, but this could be usefull too. There is the jQuery-backstretch-plugin you can use as a polyfill for background-size: cover. I guess it must be possible (and fairly simple) to grab the css-background-url property with jQuery and feed it to the jQuery-backstretch plugin. Good practice would be to test for background-size-support with modernizr and use this plugin as a fallback.

The backstretch-plugin was mentioned on SO here.The jQuery-backstretch-plugin-site is here.

In similar fashion you could make a jQuery-plugin or script that makes background-size work in your situation (background-size: 100%) and in IE8-. So to answer your question: Yes there is a way but atm there is no plug-and-play solution (ie you have to do some coding yourself).

(disclaimer: I didn't examine the backstretch-plugin thoroughly but it seems to do the same as background-size: cover)

So far, all the answers use the external program date.

Since Bash 4.2, printf has a new modifier %(dateformat)T that, when used with argument -1 outputs the current date with format given by dateformat, handled by strftime(3) (man 3 strftime for informations about the formats).

So, for a pure Bash solution:

printf '%(%s)T\n' -1

or if you need to store the result in a variable var:

printf -v var '%(%s)T' -1

No external programs and no subshells!

Since Bash 4.3, it's even possible to not specify the -1:

printf -v var '%(%s)T'

(but it might be wiser to always give the argument -1 nonetheless).

If you use -2 as argument instead of -1, Bash will use the time the shell was started instead of the current date. This can be used to compute elapsed times

$ printf -v beg '%(%s)T\n' -2
$ printf -v now '%(%s)T\n' -1
$ echo beg=$beg now=$now elapsed=$((now-beg))
beg=1583949610 now=1583953032 elapsed=3422

The top answer doesn't have a working example of the new way of doing this using type(of:. So to help rookies like me, here is a working example, taken mostly from Apple's docs here - https://developer.apple.com/documentation/swift/2885064-type

doubleNum = 30.1

func printInfo(_ value: Any) {
    let varType = type(of: value)
    print("'\(value)' of type '\(varType)'")
}

printInfo(doubleNum)
//'30.1' of type 'Double'

Use [^\p{L}\p{Nd}]+ - this matches all (Unicode) characters that are neither letters nor (decimal) digits.

In Java:

String resultString = subjectString.replaceAll("[^\\p{L}\\p{Nd}]+", "");

Edit:

I changed \p{N} to \p{Nd} because the former also matches some number symbols like ¼; the latter doesn't. See it on regex101.com.

*This solution is for reactive-form

You may have heard the confirm password is known as cross-field validation. While the field level validator that we usually write can only be applied to a single field. For cross-filed validation, you probably have to write some parent level validator. For specifically the case of confirming password, I would rather do:

this.form.valueChanges.subscribe(field => {
  if (field.password !== field.confirm) {
    this.confirm.setErrors({ mismatch: true });
  } else {
    this.confirm.setErrors(null);
  }
});

And here is the template:

<mat-form-field>
      <input matInput type="password" placeholder="Password" formControlName="password">
      <mat-error *ngIf="password.hasError('required')">Required</mat-error>
</mat-form-field>
<mat-form-field>
    <input matInput type="password" placeholder="Confirm New Password" formControlName="confirm">`enter code here`
    <mat-error *ngIf="confirm.hasError('mismatch')">Password does not match the confirm password</mat-error>
</mat-form-field>

You can map another entity based on this class (you should use entity-name in order to distinct the two) and the second one will be kind of dto (dont forget that dto has design issues ). you should define the second one as readonly and give it a good name in order to be clear that this is not a regular entity. by the way select only few columns is called projection , so google with it will be easier.

alternative - you can create named query with the list of fields that you need (you put them in the select ) or use criteria with projection

With latest ARC for GET request with authentication need to add a raw header named Authorization:authtoken.

Please find the screen shot Get request with authentication and query params

To add Query param click on drop down arrow on left side of URL box.

If the below statment is present in your class then your log4j.properties should be in java source(src) folder , if it is jar executable it should be packed in jar not a seperate file.

static Logger log = Logger.getLogger(MyClass.class);

Thanks,

http://www.besthostratings.com/articles/force-ssl-htaccess.html

Sometimes you may need to make sure that the user is browsing your site over securte connection. An easy to way to always redirect the user to secure connection (https://) can be accomplished with a .htaccess file containing the following lines:

RewriteEngine On 
RewriteCond %{SERVER_PORT} 80 
RewriteRule ^(.*)$ https://www.example.com/$1 [R,L]

Please, note that the .htaccess should be located in the web site main folder.

In case you wish to force HTTPS for a particular folder you can use:

RewriteEngine On 
RewriteCond %{SERVER_PORT} 80 
RewriteCond %{REQUEST_URI} somefolder 
RewriteRule ^(.*)$ https://www.domain.com/somefolder/$1 [R,L]

The .htaccess file should be placed in the folder where you need to force HTTPS.

For the allowed characters you can use

^[a-zA-Z0-9~@#$^*()_+=[\]{}|\\,.?: -]*$

to validate a complete string that should consist of only allowed characters. Note that - is at the end (because otherwise it'd be a range) and a few characters are escaped.

For the invalid characters you can use

[<>'"/;`%]

to check for them.

To combine both into a single regex you can use

^(?=[a-zA-Z0-9~@#$^*()_+=[\]{}|\\,.?: -]*$)(?!.*[<>'"/;`%])

but you'd need a regex engine that allows lookahead.

Why would you want length in this case?

If you do want to check for length, have the server return a JSON array with key-value pairs like this:

[
  {key:value},
  {key:value}
]

In JSON, [ and ] represents an array (with a length property), { and } represents a object (without a length property). You can iterate through the members of a object, but you will get functions as well, making a length check of the numbers of members useless except for iterating over them.

Check out this snippet:

Private Sub openDialog()
    Dim fd As Office.FileDialog

    Set fd = Application.FileDialog(msoFileDialogFilePicker)

   With fd

      .AllowMultiSelect = False

      ' Set the title of the dialog box.
      .Title = "Please select the file."

      ' Clear out the current filters, and add our own.
      .Filters.Clear
      .Filters.Add "Excel 2003", "*.xls"
      .Filters.Add "All Files", "*.*"

      ' Show the dialog box. If the .Show method returns True, the
      ' user picked at least one file. If the .Show method returns
      ' False, the user clicked Cancel.
      If .Show = True Then
        txtFileName = .SelectedItems(1) 'replace txtFileName with your textbox

      End If
   End With
End Sub

I think this is what you are asking for.

First create the file you want, with any editor like vi r gedit. And save with. Py extension.In that the first line should be

!/usr/bin/env python

Here 2 options for subsetting:

Using subset from base R:

library(ggplot2)
ggplot(subset(dat,ID %in% c("P1" , "P3"))) + 
         geom_line(aes(Value1, Value2, group=ID, colour=ID))

Using subset the argument of geom_line(Note I am using plyr package to use the special . function).

library(plyr)
ggplot(data=dat)+ 
  geom_line(aes(Value1, Value2, group=ID, colour=ID),
                ,subset = .(ID %in% c("P1" , "P3")))

You can also use the complementary subsetting:

subset(dat,ID != "P2")

Here is my take on this issue. The following retry function supports the following features:

• Returns the value of the invoked function when it succeeds
• Raises the exception of the invoked function if attempts exhausted
• Limit for the number of attempts (0 for unlimited)
• Wait (linear or exponential) between attempts
• Retry only if the exception is an instance of a specific exception type.
• Optional logging of attempts

import time

def retry(func, ex_type=Exception, limit=0, wait_ms=100, wait_increase_ratio=2, logger=None):
    attempt = 1
    while True:
        try:
            return func()
        except Exception as ex:
            if not isinstance(ex, ex_type):
                raise ex
            if 0 < limit <= attempt:
                if logger:
                    logger.warning("no more attempts")
                raise ex

            if logger:
                logger.error("failed execution attempt #%d", attempt, exc_info=ex)

            attempt += 1
            if logger:
                logger.info("waiting %d ms before attempt #%d", wait_ms, attempt)
            time.sleep(wait_ms / 1000)
            wait_ms *= wait_increase_ratio

Usage:

def fail_randomly():
    y = random.randint(0, 10)
    if y < 10:
        y = 0
    return x / y


logger = logging.getLogger()
logger.setLevel(logging.INFO)
logger.addHandler(logging.StreamHandler(stream=sys.stdout))

logger.info("starting")
result = retry.retry(fail_randomly, ex_type=ZeroDivisionError, limit=20, logger=logger)
logger.info("result is: %s", result)

See my post for more info.

Late Binding

This error can occur due to a missing reference. For example when changing from early binding to late binding, by eliminating the reference, some code may remain that references data types specific the the dropped reference.

Try including the reference to see if the problem disappears.

Maybe the error is not a compiler error but a linker error, so the specific line is unknown. Shame on Microsoft!

this is a generic method, you can use everywhere

const isBetween = (num1,num2,value) => value > num1 && value < num2 

I had the same problem with foo.new being set to null for rows of foo that had no matching key in bar. I did something like this in Oracle:

update foo
set    foo.new = (select bar.new
                  from bar 
                  where foo.key = bar.key)
where exists (select 1
              from bar
              where foo.key = bar.key)

Just to expand on juanchopanza's answer a bit...

for (int i=0; i=((Main.size())-1); i++) {
    cout << Main[i] << '\n';
}

does this:

1. Create i and set it to 0.
2. Set i to Main.size() - 1. Since Main is empty, Main.size() is 0, and i gets set to -1.
3. Main[-1] is an out-of-bounds access. Kaboom.

In your main layout set your ListView gravity to right:

android:layout_gravity="right" 

Also in your code :

mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
            R.drawable.ic_drawer, R.string.drawer_open,
            R.string.drawer_close) {

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (item != null && item.getItemId() == android.R.id.home) {
            if (mDrawerLayout.isDrawerOpen(Gravity.RIGHT)) {
                mDrawerLayout.closeDrawer(Gravity.RIGHT);
            } 
            else {
                mDrawerLayout.openDrawer(Gravity.RIGHT);
            }
        }
        return false;
    }
};

hope it works :)

P stands for polynomial time. NP stands for non-deterministic polynomial time.

Definitions:

• Polynomial time means that the complexity of the algorithm is O(n^k), where n is the size of your data (e. g. number of elements in a list to be sorted), and k is a constant.

• Complexity is time measured in the number of operations it would take, as a function of the number of data items.

• Operation is whatever makes sense as a basic operation for a particular task. For sorting, the basic operation is a comparison. For matrix multiplication, the basic operation is multiplication of two numbers.

Now the question is, what does deterministic vs. non-deterministic mean? There is an abstract computational model, an imaginary computer called a Turing machine (TM). This machine has a finite number of states, and an infinite tape, which has discrete cells into which a finite set of symbols can be written and read. At any given time, the TM is in one of its states, and it is looking at a particular cell on the tape. Depending on what it reads from that cell, it can write a new symbol into that cell, move the tape one cell forward or backward, and go into a different state. This is called a state transition. Amazingly enough, by carefully constructing states and transitions, you can design a TM, which is equivalent to any computer program that can be written. This is why it is used as a theoretical model for proving things about what computers can and cannot do.

There are two kinds of TM's that concern us here: deterministic and non-deterministic. A deterministic TM only has one transition from each state for each symbol that it is reading off the tape. A non-deterministic TM may have several such transition, i. e. it is able to check several possibilities simultaneously. This is sort of like spawning multiple threads. The difference is that a non-deterministic TM can spawn as many such "threads" as it wants, while on a real computer only a specific number of threads can be executed at a time (equal to the number of CPUs). In reality, computers are basically deterministic TMs with finite tapes. On the other hand, a non-deterministic TM cannot be physically realized, except maybe with a quantum computer.

It has been proven that any problem that can be solved by a non-deterministic TM can be solved by a deterministic TM. However, it is not clear how much time it will take. The statement P=NP means that if a problem takes polynomial time on a non-deterministic TM, then one can build a deterministic TM which would solve the same problem also in polynomial time. So far nobody has been able to show that it can be done, but nobody has been able to prove that it cannot be done, either.

NP-complete problem means an NP problem X, such that any NP problem Y can be reduced to X by a polynomial reduction. That implies that if anyone ever comes up with a polynomial-time solution to an NP-complete problem, that will also give a polynomial-time solution to any NP problem. Thus that would prove that P=NP. Conversely, if anyone were to prove that P!=NP, then we would be certain that there is no way to solve an NP problem in polynomial time on a conventional computer.

An example of an NP-complete problem is the problem of finding a truth assignment that would make a boolean expression containing n variables true.
For the moment in practice any problem that takes polynomial time on the non-deterministic TM can only be done in exponential time on a deterministic TM or on a conventional computer.
For example, the only way to solve the truth assignment problem is to try 2^n possibilities.

If the table has already been created:

First do:

ALTER TABLE `table1_name` ADD UNIQUE( `column_name`);

Then:

ALTER TABLE `table1_name` ADD FOREIGN KEY (`column_name`) REFERENCES `table2_name`(`column_name`);

export PATH=$PATH:/usr/local/git/bin:/usr/local/bin

One note: you don't need quotation marks here because it's on the right hand side of an assignment, but in general, and especially on Macs with their tradition of spacy pathnames, expansions like $PATH should be double-quoted as "$PATH".

You could try

cat FILE | awk '{print NF}'

You'll need to do an insert (or update, I believe) in order for getLastInsertId() to return a value. Could you paste more code?

If you're calling that function from another controller function, you might also be able to use $this->Form->id to get the value that you want.

For the rows containing strings, I can convert them to strings as in changing

tmpStr = nameItem("lastname") + " " + nameItem("initials")

to

tmpStr = myItem("lastname").toString + " " + myItem("intials").toString

For the comparison in the if statement myItem("sID")=sID, it needs to be change to

myItem("sID").Equals(sID)

Then the code will run without any runtime errors due to vbNull data.

To set the range of the x-axis, you can use set_xlim(left, right), here are the docs

Update:

It looks like you want an identical plot, but only change the 'tick values', you can do that by getting the tick values and then just changing them to whatever you want. So for your need it would be like this:

ticks = your_plot.get_xticks()*10**9
your_plot.set_xticklabels(ticks)

I have tested the register keyword under QNX 6.5.0 using the following code:

#include <stdlib.h>
#include <stdio.h>
#include <inttypes.h>
#include <sys/neutrino.h>
#include <sys/syspage.h>

int main(int argc, char *argv[]) {
    uint64_t cps, cycle1, cycle2, ncycles;
    double sec;
    register int a=0, b = 1, c = 3, i;

    cycle1 = ClockCycles();

    for(i = 0; i < 100000000; i++)
        a = ((a + b + c) * c) / 2;

    cycle2 = ClockCycles();
    ncycles = cycle2 - cycle1;
    printf("%lld cycles elapsed\n", ncycles);

    cps = SYSPAGE_ENTRY(qtime) -> cycles_per_sec;
    printf("This system has %lld cycles per second\n", cps);
    sec = (double)ncycles/cps;
    printf("The cycles in seconds is %f\n", sec);

    return EXIT_SUCCESS;
}

I got the following results:

-> 807679611 cycles elapsed

-> This system has 3300830000 cycles per second

-> The cycles in seconds is ~0.244600

And now without register int:

int a=0, b = 1, c = 3, i;

I got:

-> 1421694077 cycles elapsed

-> This system has 3300830000 cycles per second

-> The cycles in seconds is ~0.430700

Use the following code:

if(isset($_SERVER['HTTPS']) == 'on')
{

    $self = $_SERVER['SERVER_NAME'].$_SERVER['REQUEST_URI'];
    ?>

     <script type='text/javascript'>
     window.location.href = 'http://<?php echo $self ?>';
     </script>"
     <?php

     exit();
}
?>

See http://angular-ui.github.io/bootstrap/#/collapse

function CollapseDemoCtrl($scope) {
  $scope.isCollapsed = false;
}



<div ng-controller="CollapseDemoCtrl">
    <button class="btn" ng-click="isCollapsed = !isCollapsed">Toggle collapse</button>
    <hr>
    <div collapse="isCollapsed">
        <div class="well well-large">Some content</div> 
    </div>
</div>

The exact code will vary for each of the columns you want to do, but it's likely you'll want to use the map and apply functions. In some cases you can just compute using the existing columns directly, since the columns are Pandas Series objects, which also work as Numpy arrays, which automatically work element-wise for usual mathematical operations.

>>> d
    A   B  C
0  11  13  5
1   6   7  4
2   8   3  6
3   4   8  7
4   0   1  7
>>> (d.A + d.B) / d.C
0    4.800000
1    3.250000
2    1.833333
3    1.714286
4    0.142857
>>> d.A > d.C
0     True
1     True
2     True
3    False
4    False

If you need to use operations like max and min within a row, you can use apply with axis=1 to apply any function you like to each row. Here's an example that computes min(A, B)-C, which seems to be like your "lower wick":

>>> d.apply(lambda row: min([row['A'], row['B']])-row['C'], axis=1)
0    6
1    2
2   -3
3   -3
4   -7

Hopefully that gives you some idea of how to proceed.

Edit: to compare rows against neighboring rows, the simplest approach is to slice the columns you want to compare, leaving off the beginning/end, and then compare the resulting slices. For instance, this will tell you for which rows the element in column A is less than the next row's element in column C:

d['A'][:-1] < d['C'][1:]

and this does it the other way, telling you which rows have A less than the preceding row's C:

d['A'][1:] < d['C'][:-1]

Doing ['A"][:-1] slices off the last element of column A, and doing ['C'][1:] slices off the first element of column C, so when you line these two up and compare them, you're comparing each element in A with the C from the following row.

Here author performed tests showed that integer unix timestamp is better than DateTime. Note, he used MySql. But I feel no matter what DB engine you use comparing integers are slightly faster than comparing dates so int index is better than DateTime index. Take T1 - time of comparing 2 dates, T2 - time of comparing 2 integers. Search on indexed field takes approximately O(log(rows)) time because index based on some balanced tree - it may be different for different DB engines but anyway Log(rows) is common estimation. (if you not use bitmask or r-tree based index). So difference is (T2-T1)*Log(rows) - may play role if you perform your query oftenly.

If you think about the performace ,may be you can use "PERFORM" in a function just like this:

 PERFORM 1 FROM skytf.test_2 WHERE id=i LIMIT 1;
  IF FOUND THEN
      RAISE NOTICE ' found record id=%', i;  
  ELSE
      RAISE NOTICE ' not found record id=%', i;  
 END IF;

Simplest solution

Use numpy.dot or a.dot(b). See the documentation here.

>>> a = np.array([[ 5, 1 ,3], 
                  [ 1, 1 ,1], 
                  [ 1, 2 ,1]])
>>> b = np.array([1, 2, 3])
>>> print a.dot(b)
array([16, 6, 8])

This occurs because numpy arrays are not matrices, and the standard operations *, +, -, / work element-wise on arrays. Instead, you could try using numpy.matrix, and * will be treated like matrix multiplication.

Other Solutions

Also know there are other options:

• As noted below, if using python3.5+ the @ operator works as you'd expect:

  >>> print(a @ b)
  array([16, 6, 8])
  

• If you want overkill, you can use numpy.einsum. The documentation will give you a flavor for how it works, but honestly, I didn't fully understand how to use it until reading this answer and just playing around with it on my own.

  >>> np.einsum('ji,i->j', a, b)
  array([16, 6, 8])
  

• As of mid 2016 (numpy 1.10.1), you can try the experimental numpy.matmul, which works like numpy.dot with two major exceptions: no scalar multiplication but it works with stacks of matrices.

  >>> np.matmul(a, b)
  array([16, 6, 8])
  

• numpy.inner functions the same way as numpy.dot for matrix-vector multiplication but behaves differently for matrix-matrix and tensor multiplication (see Wikipedia regarding the differences between the inner product and dot product in general or see this SO answer regarding numpy's implementations).

  >>> np.inner(a, b)
  array([16, 6, 8])
  
  # Beware using for matrix-matrix multiplication though!
  >>> b = a.T
  >>> np.dot(a, b)
  array([[35,  9, 10],
         [ 9,  3,  4],
         [10,  4,  6]])
  >>> np.inner(a, b) 
  array([[29, 12, 19],
         [ 7,  4,  5],
         [ 8,  5,  6]])
  

Rarer options for edge cases

• If you have tensors (arrays of dimension greater than or equal to one), you can use numpy.tensordot with the optional argument axes=1:

  >>> np.tensordot(a, b, axes=1)
  array([16,  6,  8])
  

• Don't use numpy.vdot if you have a matrix of complex numbers, as the matrix will be flattened to a 1D array, then it will try to find the complex conjugate dot product between your flattened matrix and vector (which will fail due to a size mismatch n*m vs n).

If you want the editor to work with git operations, setting the $EDITOR environment variable may not be enough, at least not in the case of Sublime - e.g. if you want to rebase, it will just say that the rebase was successful, but you won't have a chance to edit the file in any way, git will just close it straight away:

git rebase -i HEAD~
Successfully rebased and updated refs/heads/master.

If you want Sublime to work correctly with git, you should configure it using:

git config --global core.editor "sublime -n -w"

I came here looking for this and found the solution in this gist on github.

MacOS Sierra User:

make sure you delete MAAP and MAAP Pro from Application folder if you have it installed on your computer

be in root directory cd ~ check homebrew (if you have homebrew installed) OR have PHP up to date

brew install php70

export PATH="$PATH:$HOME/.composer/vendor/bin"

echo 'export PATH="$PATH:$HOME/.composer/vendor/bin"' >> ~/.bash_profile

source ~/.bash_profile

cat .bash_profile

make sure this is showing : export PATH="$PATH:$HOME/.composer/vendor/bin"

laravel

now it should be global

sudo find / -name "pg_config" -print

The answer is /Library/PostgreSQL/9.1/bin/pg_config in my configuration (MAC Maverick)

You can do it with the pause command, example:

dir
pause
echo Now about to end...
pause

Emacs expects one of db, sqlite, sqlite2 or sqlite3 in the default configuration for sql-sqlite mode.

You can add properties dynamically using some of the options below:

In you example:

var data = {
    'PropertyA': 1,
    'PropertyB': 2,
    'PropertyC': 3
};

You can define a property with a dynamic value in the next two ways:

data.key = value;

or

data['key'] = value;

Even more..if your key is also dynamic you can define using the Object class with:

Object.defineProperty(data, key, withValue(value));

where data is your object, key is the variable to store the key name and value is the variable to store the value.

I hope this helps!

Some example, how to use urllib for that things, with some sugar syntax. I know about requests and other libraries, but urllib is standard lib for python and doesn't require anything to be installed separately.

Python 2/3 compatible.

import sys
if sys.version_info.major == 3:
  from urllib.request import HTTPPasswordMgrWithDefaultRealm, HTTPBasicAuthHandler, Request, build_opener
  from urllib.parse import urlencode
else:
  from urllib2 import HTTPPasswordMgrWithDefaultRealm, HTTPBasicAuthHandler, Request, build_opener
  from urllib import urlencode


def curl(url, params=None, auth=None, req_type="GET", data=None, headers=None):
  post_req = ["POST", "PUT"]
  get_req = ["GET", "DELETE"]

  if params is not None:
    url += "?" + urlencode(params)

  if req_type not in post_req + get_req:
    raise IOError("Wrong request type \"%s\" passed" % req_type)

  _headers = {}
  handler_chain = []

  if auth is not None:
    manager = HTTPPasswordMgrWithDefaultRealm()
    manager.add_password(None, url, auth["user"], auth["pass"])
    handler_chain.append(HTTPBasicAuthHandler(manager))

  if req_type in post_req and data is not None:
    _headers["Content-Length"] = len(data)

  if headers is not None:
    _headers.update(headers)

  director = build_opener(*handler_chain)

  if req_type in post_req:
    if sys.version_info.major == 3:
      _data = bytes(data, encoding='utf8')
    else:
      _data = bytes(data)

    req = Request(url, headers=_headers, data=_data)
  else:
    req = Request(url, headers=_headers)

  req.get_method = lambda: req_type
  result = director.open(req)

  return {
    "httpcode": result.code,
    "headers": result.info(),
    "content": result.read()
  }


"""
Usage example:
"""

Post data:
  curl("http://127.0.0.1/", req_type="POST", data='cascac')

Pass arguments (http://127.0.0.1/?q=show):
  curl("http://127.0.0.1/", params={'q': 'show'}, req_type="POST", data='cascac')

HTTP Authorization:
  curl("http://127.0.0.1/secure_data.txt", auth={"user": "username", "pass": "password"})

Function is not complete and possibly is not ideal, but shows a basic representation and concept to use. Additional things could be added or changed by taste.

12/08 update

Here is a GitHub link to live updated source. Currently supporting:

• authorization

• CRUD compatible

• automatic charset detection

• automatic encoding(compression) detection

I found it here: http://www.microsoft.com/en-us/download/details.aspx?id=29062

This did not require any TechNet rigamarole or the use of their horrible Java 7 based download manager.

I am a bit late, but another way is to use list comprehension and the any function, that takes an iterable and returns True whenever one element is True :

# Checking if string 'Mary' exists in the lists of the dictionary values
print any(any('Mary' in s for s in subList) for subList in myDict.values())

If you wanna count the number of element that have "Mary" in them, you can use sum():

# Number of sublists containing 'Mary'
print sum(any('Mary' in s for s in subList) for subList in myDict.values())

# Number of strings containing 'Mary'
print sum(sum('Mary' in s for s in subList) for subList in myDict.values())

From these methods, we can easily make functions to check which are the keys or values matching.

To get the keys containing 'Mary':

def matchingKeys(dictionary, searchString):
    return [key for key,val in dictionary.items() if any(searchString in s for s in val)]

To get the sublists:

def matchingValues(dictionary, searchString):
    return [val for val in dictionary.values() if any(searchString in s for s in val)]

To get the strings:

def matchingValues(dictionary, searchString):
    return [s for s i for val in dictionary.values() if any(searchString in s for s in val)]

To get both:

def matchingElements(dictionary, searchString):
    return {key:val for key,val in dictionary.items() if any(searchString in s for s in val)}

And if you want to get only the strings containing "Mary", you can do a double list comprehension :

def matchingStrings(dictionary, searchString):
    return [s for val in dictionary.values() for s in val if searchString in s]

Many Cocoa APIs require NSObject subclasses, which forces you into using class. But other than that, you can use the following cases from Apple’s Swift blog to decide whether to use a struct / enum value type or a class reference type.

https://developer.apple.com/swift/blog/?id=10

If you want to change the font size then simply follow. Preferences-> Default File preferences.

After clicking on default file preferences, new Tab will open with name of Default File Type.Sublime-options

After find Font properties like font Courier New 12 we (recommend to use CTRL+F) then change size of it. Click save and instantly you can see the changes.

We send email via the Gmail SMTP servers, and we get this exact error from PHPMailer sometimes when we hit our Gmail send limits.

You can check if it's the same thing happening to you by going into Gmail and trying to manually send an email. In our case that displays the more helpful error message about sending limits.

https://support.google.com/a/answer/166852?hl=en

If your test project is set to target a 64bit platform, the tests won't show up in the NUnit Test Adapter.

The standard mathematical way for positive integers is to use the uniqueness of prime factorization.

f( x, y ) -> 2^x * 3^y

The downside is that the image tends to span quite a large range of integers so when it comes to expressing the mapping in a computer algorithm you may have issues with choosing an appropriate type for the result.

You could modify this to deal with negative x and y by encoding a flags with powers of 5 and 7 terms.

e.g.

f( x, y ) -> 2^|x| * 3^|y| * 5^(x<0) * 7^(y<0)

Use the ALLOW_PAGE_LOCKS clause of ALTER/CREATE INDEX:

ALTER INDEX indexname ON tablename SET (ALLOW_PAGE_LOCKS = OFF);

use labelpad parameter:

pl.xlabel("...", labelpad=20)

or set it after:

ax.xaxis.labelpad = 20

This error is caused by:

Y = Dataset.iloc[:,18].values

Indexing is out of bounds here most probably because there are less than 19 columns in your Dataset, so column 18 does not exist. The following code you provided doesn't use Y at all, so you can just comment out this line for now.

You don't even need width: 100% in your child div:

http://jsfiddle.net/DanielDZC/w2mev/1/

You can use the SO_RCVTIMEO and SO_SNDTIMEO socket options to set timeouts for any socket operations, like so:

    struct timeval timeout;      
    timeout.tv_sec = 10;
    timeout.tv_usec = 0;

    if (setsockopt (sockfd, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout,
                sizeof(timeout)) < 0)
        error("setsockopt failed\n");

    if (setsockopt (sockfd, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout,
                sizeof(timeout)) < 0)
        error("setsockopt failed\n");

Edit: from the setsockopt man page:

SO_SNDTIMEO is an option to set a timeout value for output operations. It accepts a struct timeval parameter with the number of seconds and microseconds used to limit waits for output operations to complete. If a send operation has blocked for this much time, it returns with a partial count or with the error EWOULDBLOCK if no data were sent. In the current implementation, this timer is restarted each time additional data are delivered to the protocol, implying that the limit applies to output portions ranging in size from the low-water mark to the high-water mark for output.

SO_RCVTIMEO is an option to set a timeout value for input operations. It accepts a struct timeval parameter with the number of seconds and microseconds used to limit waits for input operations to complete. In the current implementation, this timer is restarted each time additional data are received by the protocol, and thus the limit is in effect an inactivity timer. If a receive operation has been blocked for this much time without receiving additional data, it returns with a short count or with the error EWOULDBLOCK if no data were received. The struct timeval parameter must represent a positive time interval; otherwise, setsockopt() returns with the error EDOM.

You can use the document's import (or adopt) method to add XML fragments:

  /**
   * @param docBuilder
   *          the parser
   * @param parent
   *          node to add fragment to
   * @param fragment
   *          a well formed XML fragment
   */
  public static void appendXmlFragment(
      DocumentBuilder docBuilder, Node parent,
      String fragment) throws IOException, SAXException {
    Document doc = parent.getOwnerDocument();
    Node fragmentNode = docBuilder.parse(
        new InputSource(new StringReader(fragment)))
        .getDocumentElement();
    fragmentNode = doc.importNode(fragmentNode, true);
    parent.appendChild(fragmentNode);
  }

> grepl("^[^_]+_1",s)
[1] FALSE
> grepl("^[^_]+_2",s)
[1] TRUE

basically, look for everything at the beginning except _, and then the _2.

+1 to @Ananda_Mahto for suggesting grepl instead of grep.

In my situation I needed to answer some questions without Y or N but with text or blank. I found the best way to do this in my situation was to create a shellscript file. In my case I called it autocomplete.sh

I was needing to answer some questions for a doctrine schema exporter so my file looked like this.

-- This is an example only --

php vendor/bin/mysql-workbench-schema-export mysqlworkbenchfile.mwb ./doctrine << EOF
`#Export to Doctrine Annotation Format`                                     1
`#Would you like to change the setup configuration before exporting`        y
`#Log to console`                                                           y
`#Log file`                                                                 testing.log
`#Filename [%entity%.%extension%]`
`#Indentation [4]`
`#Use tabs [no]`
`#Eol delimeter (win, unix) [win]`
`#Backup existing file [yes]`
`#Add generator info as comment [yes]`
`#Skip plural name checking [no]`
`#Use logged storage [no]`
`#Sort tables and views [yes]`
`#Export only table categorized []`
`#Enhance many to many detection [yes]`
`#Skip many to many tables [yes]`
`#Bundle namespace []`
`#Entity namespace []`
`#Repository namespace []`
`#Use automatic repository [yes]`
`#Skip column with relation [no]`
`#Related var name format [%name%%related%]`
`#Nullable attribute (auto, always) [auto]`
`#Generated value strategy (auto, identity, sequence, table, none) [auto]`
`#Default cascade (persist, remove, detach, merge, all, refresh, ) [no]`
`#Use annotation prefix [ORM\]`
`#Skip getter and setter [no]`
`#Generate entity serialization [yes]`
`#Generate extendable entity [no]`                                          y
`#Quote identifier strategy (auto, always, none) [auto]`
`#Extends class []`
`#Property typehint [no]`
EOF

The thing I like about this strategy is you can comment what your answers are and using EOF a blank line is just that (the default answer). Turns out by the way this exporter tool has its own JSON counterpart for answering these questions, but I figured that out after I did this =).

to run the script simply be in the directory you want and run 'sh autocomplete.sh' in terminal.

In short by using << EOL & EOF in combination with Return Lines you can answer each question of the prompt as necessary. Each new line is a new answer.

My example just shows how this can be done with comments also using the ` character so you remember what each step is.

Note the other advantage of this method is you can answer with more then just Y or N ... in fact you can answer with blanks!

Hope this helps someone out.

How about:

(sleep 5; echo "Hello World") &

Yes, for Virtualbox provider do something like this:

Vagrant.configure("2") do |config|
    # ...other options...
    config.vm.provider "virtualbox" do |p|
        p.name = "something-else"
    end
end

If you're on the Model Overview page you get a tab with the schema. If you rightclick on that tab you get an option to "edit schema". From there you can rename the schema by adding a new name, then click outside the field. This goes for MySQL Workbench 5.2.30 CE

Edit: On the model overview it's under Physical Schemata

Screenshot:

You shouldn't really do this but insert in a new record instead and update it that way.
But, if you really need to, you can do the following:

• Disable enforcing FK constraints temporarily (e.g. ALTER TABLE foo WITH NOCHECK CONSTRAINT ALL)
• Then update your PK
• Then update your FKs to match the PK change
• Finally enable back enforcing FK constraints

Yes, Java doesn't have struct/value type yet. But, in the upcoming version of Java, we are going to get inline class which is similar to struct in C# and will help us write allocation free code.

inline class point { 
  int x;
  int y;
}

Both r+ and w+ can read and write to a file. However, r+ doesn't delete the content of the file and doesn't create a new file if such file doesn't exist, whereas w+ deletes the content of the file and creates it if it doesn't exist.

If you are using the SQL Expression Style approach there is another way to construct the count statement if you already have your table object.

Preparations to get the table object. There are also different ways.

import sqlalchemy

database_engine = sqlalchemy.create_engine("connection string")

# Populate existing database via reflection into sqlalchemy objects
database_metadata = sqlalchemy.MetaData()
database_metadata.reflect(bind=database_engine)

table_object = database_metadata.tables.get("table_name") # This is just for illustration how to get the table_object                    

Issuing the count query on the table_object

query = table_object.count()
# This will produce something like, where id is a primary key column in "table_name" automatically selected by sqlalchemy
# 'SELECT count(table_name.id) AS tbl_row_count FROM table_name'

count_result = database_engine.scalar(query)

I wrote a directive which lets you limit the areas where a click has effect. It could be used for certain scenarios like this one, so instead of having to deal with the click on a case by case basis you can just say "clicks won't come out of this element".

You would use it like this:

<table>
  <tr ng-repeat="user in users" ng-click="showUser(user)">
    <td>{{user.firstname}}</td>
    <td>{{user.lastname}}</td>
    <td isolate-click>
      <button class="btn" ng-click="deleteUser(user.id, $index);">
        Delete
      </button>
    </td>              
  </tr>
</table>

Keep in mind that this would prevent all clicks on the last cell, not just the button. If that's not what you want you may want to wrap the button like this:

<span isolate-click>
    <button class="btn" ng-click="deleteUser(user.id, $index);">
        Delete
    </button>
</span>

Here is the directive's code:

angular.module('awesome', []).directive('isolateClick', function() {
    return {
        link: function(scope, elem) {
            elem.on('click', function(e){
                e.stopPropagation();
            });
        }
   };
});

You can use below link: New line in javascript

  var i;
for(i=10; i>=0; i= i-1){
   var s;
   for(s=0; s<i; s = s+1){
    document.write("*");
   }
   //i want this to print a new line
   /document.write('<br>');

}

Using mysql's ego command

From mysql's help command:

ego          (\G) Send command to mysql server, display result vertically.

So by appending a \G to your select, you can get a very clean vertical output:

mysql> SELECT * FROM sometable \G

Using a pager

You can tell MySQL to use the less pager with its -S option that chops wide lines and gives you an output that you can scroll with the arrow keys:

mysql> pager less -S

Thus, next time you run a command with a wide output, MySQL will let you browse the output with the less pager:

mysql> SELECT * FROM sometable;

If you're done with the pager and want to go back to the regular output on stdout, use this:

mysql> nopager

Works for me

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">

$("#btn").click(function() {
    alert("email")
});

</script>

Since you don't care which id to return I stick with MAX id for each email to simplify SQL query, give it a try

;WITH ue(id)
 AS
 (
   SELECT MAX(id)
   FROM table
   GROUP BY email
 )
 SELECT * FROM table t
 INNER JOIN ue ON ue.id = t.id

no it doesnt. break is for loops, not ifs.

nested if statements are just terrible. If you can avoid them, avoid them. Can you rewrite your code to be something like

if (c1 && c2) {
    //sequence 1
} else if (c3 && c2) {
   // sequence 3
}

that way you don't need any control logic to 'break out' of the loop.

This is a psuedo way of doing it

IF (selectField1 = true) 
SELECT Field1 FROM Table
ELSE
SELECT Field2 FROM Table

This might be useful to someone also ..

i.e. For a data analyst and data profiling type of purposes ..(i.e. not grouped by) ..

Prior to the SQL*Server 2017 String_agg function existence ..

(i.e. returns just one row ..)

select distinct
SUBSTRING (
stuff(( select distinct ',' + [FieldB] from tablename order by 1 FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)') 
,1,0,'' ) 
,2,9999)
from 
    tablename 

e.g. returns comma separated values A,B

I faced the same issues. To solve this, I used export PYTHONPATH="$PWD". However, in this case, you will need to modify imports in your Scripts dir depending on the below:

Case 1: If you are in the user_management dir, your scripts should use this style from Modules import LDAPManager to import module.

Case 2: If you are out of the user_management 1 level like main, your scripts should use this style from user_management.Modules import LDAPManager to import modules.

Short oneliner for CamelCases when you have spaces also included (doesn't work correctly if you have a word inbetween with small starting-letter):

a = "Test String"
a.gsub(' ', '').underscore

  => "test_string"

There is a simple way for @Sprunth's answer.

private void GetAllDiskDrives()
    {
        var searcher = new ManagementObjectSearcher("SELECT * FROM Win32_DiskDrive");

        foreach (ManagementObject wmi_HD in searcher.Get())
        {
            HardDrive hd = new HardDrive();
            hd.Model = wmi_HD["Model"].ToString();
            hd.InterfaceType = wmi_HD["InterfaceType"].ToString();
            hd.Caption = wmi_HD["Caption"].ToString();

            hd.SerialNo =wmi_HD.GetPropertyValue("SerialNumber").ToString();//get the serailNumber of diskdrive

            hdCollection.Add(hd);
        }

 }


public class HardDrive
{
    public string Model { get; set; }
    public string InterfaceType { get; set; }
    public string Caption { get; set; }
    public string SerialNo { get; set; }
}

select * from your_table where your_field like '%a%b%'

and be prepared to wait a while...

Edit: note that this pattern looks for an 'a' followed by a 'b' (possibly with other "stuff" in between) -- rereading your question, that may not be what you wanted...

All the answers are good, but I found they all lacked that professional "polish".

I came up with this, fading out, sliding up, then removing:

$target.fadeTo(1000, 0.01, function(){ 
    $(this).slideUp(150, function() {
        $(this).remove(); 
    }); 
});

I think the main difference I can describe relates to record oriented vs. column oriented formats. Record oriented formats are what we're all used to -- text files, delimited formats like CSV, TSV. AVRO is slightly cooler than those because it can change schema over time, e.g. adding or removing columns from a record. Other tricks of various formats (especially including compression) involve whether a format can be split -- that is, can you read a block of records from anywhere in the dataset and still know it's schema? But here's more detail on columnar formats like Parquet.

Parquet, and other columnar formats handle a common Hadoop situation very efficiently. It is common to have tables (datasets) having many more columns than you would expect in a well-designed relational database -- a hundred or two hundred columns is not unusual. This is so because we often use Hadoop as a place to denormalize data from relational formats -- yes, you get lots of repeated values and many tables all flattened into a single one. But it becomes much easier to query since all the joins are worked out. There are other advantages such as retaining state-in-time data. So anyway it's common to have a boatload of columns in a table.

Let's say there are 132 columns, and some of them are really long text fields, each different column one following the other and use up maybe 10K per record.

While querying these tables is easy with SQL standpoint, it's common that you'll want to get some range of records based on only a few of those hundred-plus columns. For example, you might want all of the records in February and March for customers with sales > $500.

To do this in a row format the query would need to scan every record of the dataset. Read the first row, parse the record into fields (columns) and get the date and sales columns, include it in your result if it satisfies the condition. Repeat. If you have 10 years (120 months) of history, you're reading every single record just to find 2 of those months. Of course this is a great opportunity to use a partition on year and month, but even so, you're reading and parsing 10K of each record/row for those two months just to find whether the customer's sales are > $500.

In a columnar format, each column (field) of a record is stored with others of its kind, spread all over many different blocks on the disk -- columns for year together, columns for month together, columns for customer employee handbook (or other long text), and all the others that make those records so huge all in their own separate place on the disk, and of course columns for sales together. Well heck, date and months are numbers, and so are sales -- they are just a few bytes. Wouldn't it be great if we only had to read a few bytes for each record to determine which records matched our query? Columnar storage to the rescue!

Even without partitions, scanning the small fields needed to satisfy our query is super-fast -- they are all in order by record, and all the same size, so the disk seeks over much less data checking for included records. No need to read through that employee handbook and other long text fields -- just ignore them. So, by grouping columns with each other, instead of rows, you can almost always scan less data. Win!

But wait, it gets better. If your query only needed to know those values and a few more (let's say 10 of the 132 columns) and didn't care about that employee handbook column, once it had picked the right records to return, it would now only have to go back to the 10 columns it needed to render the results, ignoring the other 122 of the 132 in our dataset. Again, we skip a lot of reading.

(Note: for this reason, columnar formats are a lousy choice when doing straight transformations, for example, if you're joining all of two tables into one big(ger) result set that you're saving as a new table, the sources are going to get scanned completely anyway, so there's not a lot of benefit in read performance, and because columnar formats need to remember more about the where stuff is, they use more memory than a similar row format).

One more benefit of columnar: data is spread around. To get a single record, you can have 132 workers each read (and write) data from/to 132 different places on 132 blocks of data. Yay for parallelization!

And now for the clincher: compression algorithms work much better when it can find repeating patterns. You could compress AABBBBBBCCCCCCCCCCCCCCCC as 2A6B16C but ABCABCBCBCBCCCCCCCCCCCCCC wouldn't get as small (well, actually, in this case it would, but trust me :-) ). So once again, less reading. And writing too.

So we read a lot less data to answer common queries, it's potentially faster to read and write in parallel, and compression tends to work much better.

Columnar is great when your input side is large, and your output is a filtered subset: from big to little is great. Not as beneficial when the input and outputs are about the same.

But in our case, Impala took our old Hive queries that ran in 5, 10, 20 or 30 minutes, and finished most in a few seconds or a minute.

Hope this helps answer at least part of your question!

Welcome to Java! This Nodes are like a blocks, they must be assembled to do amazing things! In this particular case, your nodes can represent a list, a linked list, You can see an example here:

public class ItemLinkedList {
    private ItemInfoNode head;
    private ItemInfoNode tail;
    private int size = 0;

    public int getSize() {
        return size;
    }

    public void addBack(ItemInfo info) {
        size++;
        if (head == null) {
            head = new ItemInfoNode(info, null, null);
            tail = head;
        } else {
            ItemInfoNode node = new ItemInfoNode(info, null, tail);
            this.tail.next =node;
            this.tail = node;
        }
    }

    public void addFront(ItemInfo info) {
        size++;
        if (head == null) {
            head = new ItemInfoNode(info, null, null);
            tail = head;
        } else {
            ItemInfoNode node = new ItemInfoNode(info, head, null);
            this.head.prev = node;
            this.head = node;
        }
    }

    public ItemInfo removeBack() {
        ItemInfo result = null;
        if (head != null) {
            size--;
            result = tail.info;
            if (tail.prev != null) {
                tail.prev.next = null;
                tail = tail.prev;
            } else {
                head = null;
                tail = null;
            }
        }
        return result;
    }

    public ItemInfo removeFront() {
        ItemInfo result = null;
        if (head != null) {
            size--;
            result = head.info;
            if (head.next != null) {
                head.next.prev = null;
                head = head.next;
            } else {
                head = null;
                tail = null;
            }
        }
        return result;
    }

    public class ItemInfoNode {

        private ItemInfoNode next;
        private ItemInfoNode prev;
        private ItemInfo info;

        public ItemInfoNode(ItemInfo info, ItemInfoNode next, ItemInfoNode prev) {
            this.info = info;
            this.next = next;
            this.prev = prev;
        }

        public void setInfo(ItemInfo info) {
            this.info = info;
        }

        public void setNext(ItemInfoNode node) {
            next = node;
        }

        public void setPrev(ItemInfoNode node) {
            prev = node;
        }

        public ItemInfo getInfo() {
            return info;
        }

        public ItemInfoNode getNext() {
            return next;
        }

        public ItemInfoNode getPrev() {
            return prev;
        }
    }
}

EDIT:

Declare ItemInfo as this:

public class ItemInfo {
    private String name;
    private String rfdNumber;
    private double price;
    private String originalPosition;

    public ItemInfo(){
    }

    public ItemInfo(String name, String rfdNumber, double price, String originalPosition) {
        this.name = name;
        this.rfdNumber = rfdNumber;
        this.price = price;
        this.originalPosition = originalPosition;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getRfdNumber() {
        return rfdNumber;
    }

    public void setRfdNumber(String rfdNumber) {
        this.rfdNumber = rfdNumber;
    }

    public double getPrice() {
        return price;
    }

    public void setPrice(double price) {
        this.price = price;
    }

    public String getOriginalPosition() {
        return originalPosition;
    }

    public void setOriginalPosition(String originalPosition) {
        this.originalPosition = originalPosition;
    }
}

Then, You can use your nodes inside the linked list like this:

public static void main(String[] args) {
    ItemLinkedList list = new ItemLinkedList();
    for (int i = 1; i <= 10; i++) {
        list.addBack(new ItemInfo("name-"+i, "rfd"+i, i, String.valueOf(i)));

    }
    while (list.size() > 0){
        System.out.println(list.removeFront().getName());
    }
}

Count character occurrences in a string is easy:

#include <bits/stdc++.h>
using namespace std;
int main()
{
    string s="Sakib Hossain";
    int cou=count(s.begin(),s.end(),'a');
    cout<<cou;
}

The following code is using jQuery to generate a custom rightclick event based on the default mousedown and mouseup events. It considers the following points:

• trigger on mouseup
• trigger only when pressed mousedown on the same element before
• this code especially also works in JFX Webview (since the contextmenu event is not triggered there)
• it does NOT trigger when the contextmenu key on the keyboard is pressed (like the solution with the on('contextmenu', ...) does

$(function ()_x000D_
{ // global rightclick handler - trigger custom event "rightclick"_x000D_
 var mouseDownElements = [];_x000D_
 $(document).on('mousedown', '*', function(event)_x000D_
 {_x000D_
  if (event.which == 3)_x000D_
  {_x000D_
   mouseDownElements.push(this);_x000D_
  }_x000D_
 });_x000D_
 $(document).on('mouseup', '*', function(event)_x000D_
 {_x000D_
  if (event.which == 3 && mouseDownElements.indexOf(this) >= 0)_x000D_
  {_x000D_
   $(this).trigger('rightclick');_x000D_
  }_x000D_
 });_x000D_
 $(document).on('mouseup', function()_x000D_
 {_x000D_
   mouseDownElements.length = 0;_x000D_
 });_x000D_
    // disable contextmenu_x000D_
    $(document).on('contextmenu', function(event)_x000D_
 {_x000D_
   event.preventDefault();_x000D_
 });_x000D_
});_x000D_
_x000D_
_x000D_
_x000D_
// Usage:_x000D_
$('#testButton').on('rightclick', function(event)_x000D_
{_x000D_
  alert('this was a rightclick');_x000D_
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<button id="testButton">Rightclick me</button>

Based on the docs at https://angular.io/api/platform-browser/DomSanitizer, the right way to do this seems to be to use sanitize. At least in Angular 7 (don't know if this changed from before). This worked for me:

import { Component, OnInit, Input, SecurityContext } from '@angular/core';
import { DomSanitizer } from '@angular/platform-browser';

constructor(
    private sanitizer: DomSanitizer
) { }

this.sanitizer.sanitize(SecurityContext.STYLE, 'url(' + this.image + ')');

Re SecurityContext, see https://angular.io/api/core/SecurityContext. Basically it's just this enum:

enum SecurityContext {
  NONE: 0
  HTML: 1
  STYLE: 2
  SCRIPT: 3
  URL: 4
  RESOURCE_URL: 5
}

Starting simple, with no HTML:

foreach($database as $file) {
    echo $file['filename'] . ' at ' . $file['filepath'];
}

And you can otherwise manipulate the fields in the foreach.

Check Bash Flatten Folder script that converts folder hierarchy to a single folder

Yes - it's possible (though not with your method signature) and yes, with your signature the types must be the same.

With the signature you have given, T must be associated to a single type (e.g. String or Integer) at the call-site. You can, however, declare method signatures which take multiple type parameters

public <S, T> void func(Set<S> s, Set<T> t)

Note in the above signature that I have declared the types S and T in the signature itself. These are therefore different to and independent of any generic types associated with the class or interface which contains the function.

public class MyClass<S, T> {
   public        void foo(Set<S> s, Set<T> t); //same type params as on class
   public <U, V> void bar(Set<U> s, Set<V> t); //type params independent of class
}

You might like to take a look at some of the method signatures of the collection classes in the java.util package. Generics is really rather a complicated subject, especially when wildcards (? extends and ? super) are considered. For example, it's often the case that a method which might take a Set<Number> as a parameter should also accept a Set<Integer>. In which case you'd see a signature like this:

public void baz(Set<? extends T> s);

There are plenty of questions already on SO for you to look at on the subject!

• Java Generics: List, List<Object>, List<?>
• Java Generics (Wildcards)
• What are the differences between Generics in C# and Java... and Templates in C++?

Not sure what the point of returning an int from the function is, although you could do that if you want!

I had the same problem, and since this question was the first hit on google, I'll add my solution too. For me, it was a missing format attribute in an attr element in res/values/attrs.xml.

Have you tried setting

li {list-style-type: none;}

According to Need an unordered list without any bullets, you need to add this style to the li elements.

Here is a generic solution for this problem.

public <T> List<T> difference(List<T> first, List<T> second) {
    List<T> toReturn = new ArrayList<>(first);
    toReturn.removeAll(second);
    return toReturn;
}

(Jun-Dec 2016) Most answers here are now out-of-date as: 1) GData APIs are the previous generation of Google APIs, and that's why it was hard for @Josh Brown to find that old GData Docs API documentation. While not all GData APIs have been deprecated, all newer Google APIs do not use the Google Data protocol; and 2) Google released a new Google Sheets API (not GData). In order to use the new API, you need to get the Google APIs Client Library for Python (it's as easy as pip install -U google-api-python-client [or pip3 for Python 3]) and use the latest Sheets API v4+, which is much more powerful & flexible than older API releases.

Here's one code sample from the official docs to help get you kickstarted. However, here are slightly longer, more "real-world" examples of using the API you can learn from (videos plus blog posts):

• Migrating SQL data to a Sheet plus code deep dive post
• Formatting text using the Sheets API plus code deep dive post
• Generating slides from spreadsheet data plus code deep dive post
• Those and others in the Sheets API video library

The latest Sheets API provides features not available in older releases, namely giving developers programmatic access to a Sheet as if you were using the user interface (create frozen rows, perform cell formatting, resizing rows/columns, adding pivot tables, creating charts, etc.), but NOT as if it was some database that you could perform searches on and get selected rows from. You'd basically have to build a querying layer on top of the API that does this. One alternative is to use the Google Charts Visualization API query language, which does support SQL-like querying. You can also query from within the Sheet itself. Be aware that this functionality existed before the v4 API, and that the security model was updated in Aug 2016. To learn more, check my G+ reshare to a full write-up from a Google Developer Expert.

Also note that the Sheets API is primarily for programmatically accessing spreadsheet operations & functionality as described above, but to perform file-level access such as imports/exports, copy, move, rename, etc., use the Google Drive API instead. Examples of using the Drive API:

• Listing your files in Google Drive and code deep dive post
• Google Drive: Uploading & Downloading Files plus "Poor man's plain text to PDF converter" code deep dive post (*)
• Exporting a Google Sheet as CSV blog post only

(*) - TL;DR: upload plain text file to Drive, import/convert to Google Docs format, then export that Doc as PDF. Post above uses Drive API v2; this follow-up post describes migrating it to Drive API v3, and here's a developer video combining both "poor man's converter" posts.

To learn more about how to use Google APIs with Python in general, check out my blog as well as a variety of Google developer videos (series 1 and series 2) I'm producing.

ps. As far as Google Docs goes, there isn't a REST API available at this time, so the only way to programmatically access a Doc is by using Google Apps Script (which like Node.js is JavaScript outside of the browser, but instead of running on a Node server, these apps run in Google's cloud; also check out my intro video.) With Apps Script, you can build a Docs app or an add-on for Docs (and other things like Sheets & Forms).

UPDATE Jul 2018: The above "ps." is no longer true. The G Suite developer team pre-announced a new Google Docs REST API at Google Cloud NEXT '18. Developers interested in getting into the early access program for the new API should register at https://developers.google.com/docs.

UPDATE Feb 2019: The Docs API launched to preview last July is now available generally to all... read the launch post for more details.

UPDATE Nov 2019: In an effort to bring G Suite and GCP APIs more inline with each other, earlier this year, all G Suite code samples were partially integrated with GCP's newer (lower-level not product) Python client libraries. The way auth is done is similar but (currently) requires a tiny bit more code to manage token storage, meaning rather than our libraries manage storage.json, you'll store them using pickle (token.pickle or whatever name you prefer) instead, or choose your own form of persistent storage. For you readers here, take a look at the updated Python quickstart example.

There's a write-up here that may be of use: Set Focus to First Input on Web Page

Will delete all files/directories below the current one.

find -mindepth 1 -delete

If you want to do the same with another directory whose name you have, you can just name that

find <name-of-directory> -mindepth 1 -delete

If you want to remove not only the sub-directories and files of it, but also the directory itself, omit -mindepth 1. Do it without the -delete to get a list of the things that will be removed.

I've written a few methods for convert by Gson library and java 1.8 .
thay are daynamic model for convert.

string to object

object to string

List to string

string to List

HashMap to String

String to JsonObj

//saeedmpt 
public static String convertMapToString(Map<String, String> data) {
    //convert Map  to String
    return new GsonBuilder().setPrettyPrinting().create().toJson(data);
}
public static <T> List<T> convertStringToList(String strListObj) {
    //convert string json to object List
    return new Gson().fromJson(strListObj, new TypeToken<List<Object>>() {
    }.getType());
}
public static <T> T convertStringToObj(String strObj, Class<T> classOfT) {
    //convert string json to object
    return new Gson().fromJson(strObj, (Type) classOfT);
}

public static JsonObject convertStringToJsonObj(String strObj) {
    //convert string json to object
    return new Gson().fromJson(strObj, JsonObject.class);
}

public static <T> String convertListObjToString(List<T> listObj) {
    //convert object list to string json for
    return new Gson().toJson(listObj, new TypeToken<List<T>>() {
    }.getType());
}

public static String convertObjToString(Object clsObj) {
    //convert object  to string json
    String jsonSender = new Gson().toJson(clsObj, new TypeToken<Object>() {
    }.getType());
    return jsonSender;
}

If you have a place in your code where you can switch on a String, then it may be better to refactor the String to be an enumeration of the possible values, which you can switch on. Of course, you limit the potential values of Strings you can have to those in the enumeration, which may or may not be desired.

Of course your enumeration could have an entry for 'other', and a fromString(String) method, then you could have

ValueEnum enumval = ValueEnum.fromString(myString);
switch (enumval) {
   case MILK: lap(); break;
   case WATER: sip(); break;
   case BEER: quaff(); break;
   case OTHER: 
   default: dance(); break;
}

I have been using:

<a href=".">link</a>

Have yet to find a case and/or browser where it does not work as intended.

Period means the current path. You can also use .. to refer to the folder above the current path, for instance, if you have this file structure:

page1.html
folder1
    page2.html

You can then in page2.html write:

<a href="../page1.html">link to page 1</a>

EDIT:

I'm not sure if the behaviour has changed or if it was always like this, but Chrome (and maybe others) will treat periods as described above as regarding directories, not files. This means that if you are at http://example.com/foo/bar.html you are really in the directory /foo/ and a href value of . in bar.html will refer to /foo/ rather than bar.html

Think of it as navigating the file system in a terminal; you can never cd into a file :)

EDIT 2:

It seems like the behaviour of using href="." is not as predictable anymore, both Firefox and Chrome might have changed how they handle these. I wouldn't rely entirely on my original answer, but rather try both the empty string and the period in different browsers for your specific use and make sure you get the desired behaviour.

The first thing that we need to do is install NVM.

1. Uninstall existing version of node since we won’t be using it anymore
2. Delete any existing nodejs installation directories. e.g. “C:\Program Files\nodejs”) that might remain. NVM’s generated symlink will not overwrite an existing (even empty) installation directory.
3. Delete the npm install directory at C:\Users[Your User]\AppData\Roaming\npm We are now ready to install nvm. Download the installer from https://github.com/coreybutler/nvm/releases

To upgrade, run the new installer. It will safely overwrite the files it needs to update without touching your node.js installations. Make sure you use the same installation and symlink folder. If you originally installed to the default locations, you just need to click “next” on each window until it finishes.

Credits Directly copied from : https://digitaldrummerj.me/windows-running-multiple-versions-of-node/

I would suggest looking at how browsers handle forms by default. For example take a look at the form element <select multiple> and how it handles multiple values from this example at w3schools.

<form action="/action_page.php">
<select name="cars" multiple>
  <option value="volvo">Volvo</option>
  <option value="saab">Saab</option>
  <option value="opel">Opel</option>
  <option value="audi">Audi</option>
</select>
<input type="submit">
</form>

For PHP use:

<select name="cars[]" multiple>

Live example from above at w3schools.com

From above if you click "saab, opel" and click submit, it will generate a result of cars=saab&cars=opel. Then depending on the back-end server, the parameter cars should come across as an array that you can further process.

Hope this helps anyone looking for a more 'standard' way of handling this issue.

As of December 2017, previously posted links don't work, but JDK 7 can still be downloaded from Oracle Archives (login required):

http://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase7-521261.html

Simply you cannot do it with FF3.

The other option could be using applet or other controls to select and upload files.

This should be simple using jquery:

HTML:

  <input type="text" name="txtJob" value="software engineer">

JS:

  var jobValue = $('#txtJob').val(); //Get the text field value
  $('#txtJob').val(jobValue);        //Set the text field value

r := strings(byteData)

This also works to turn []byte into io.Reader

 function uploadFile() {
     var fileElement = document.getElementById("fileToUpload");
        var fileExtension = "";
        if (fileElement.value.lastIndexOf(".") > 0) {
            fileExtension = fileElement.value.substring(fileElement.value.lastIndexOf(".") + 1, fileElement.value.length);
        }
        if (fileExtension == "odx-d"||fileExtension == "odx"||fileExtension == "pdx"||fileExtension == "cmo"||fileExtension == "xml") {
         var fd = new FormData();
        fd.append("fileToUpload", document.getElementById('fileToUpload').files[0]);
        var xhr = new XMLHttpRequest();
        xhr.upload.addEventListener("progress", uploadProgress, false);
        xhr.addEventListener("load", uploadComplete, false);
        xhr.addEventListener("error", uploadFailed, false);
        xhr.addEventListener("abort", uploadCanceled, false);
        xhr.open("POST", "/post_uploadReq");
        xhr.send(fd);
        }
        else {
            alert("You must select a valid odx,pdx,xml or cmo file for upload");
            return false;
        }
       
      }

tried this , works very well

if you use a negative translateX/Y width and height are not necessary and the style is really short

#form_login {
    left      : 50%;
    top       : 50%;
    position  : absolute;
    transform : translate(-50%, -50%);
}

<form id="form_login">
  <p> 
      <input type="text" id="username" placeholder="username" />
  </p>
  <p>
      <input type="password" id="password" placeholder="password" />
  </p>
  <p>
      <input type="text" id="server" placeholder="server" />
  </p>
  <p>
      <button id="submitbutton" type="button">Se connecter</button>
  </p>
</form>

Alternatively you could use display: grid (check the full page view)

body {
   margin        : 0;
   padding       : 0;
   display       : grid;
   place-content : center;
   min-height    : 100vh;
}

<form id="form_login">
  <p> 
      <input type="text" id="username" placeholder="username" />
  </p>
  <p>
      <input type="password" id="password" placeholder="password" />
  </p>
  <p>
      <input type="text" id="server" placeholder="server" />
  </p>
  <p>
      <button id="submitbutton" type="button">Se connecter</button>
  </p>
</form>

if your are using server, there's "public network IP" and "internal network IP". Use the "internal network IP" in your file /etc/hosts and "public network IP" in your code. if you use "public network IP" in your file /etc/hosts then you will get this error.

shuffle the pandas data frame by taking a sample array in this case index and randomize its order then set the array as an index of data frame. Now sort the data frame according to index. Here goes your shuffled dataframe

import random
df = pd.DataFrame({"a":[1,2,3,4],"b":[5,6,7,8]})
index = [i for i in range(df.shape[0])]
random.shuffle(index)
df.set_index([index]).sort_index()

output

    a   b
0   2   6
1   1   5
2   3   7
3   4   8

Insert you data frame in the place of mine in above code .

Label's aren't form elements. They don't have a value. They have innerHTML and textContent.

Thus,

$('#telefon').html() 
// or
$('#telefon').text()

or

var telefon = document.getElementById('telefon');
telefon.innerHTML;

If you are starting with your form element, check out the labels list of it. That is,

var el = $('#myformelement');
var label = $( el.prop('labels') );
// label.html();
// el.val();
// blah blah blah you get the idea

If your array of objects are complex like:

$scope.friends = [{ name: John , uuid: 1234}, {name: Joe, uuid, 5678}];

And your current model was set to something like:

$scope.user.friend = {name:John, uuid: 1234};

It helped to use the track by function on uuid (or any unique field), as long as the ng-model="user.friend" also has a uuid:

<select ng-model="user.friend" 
ng-options="friend as friend.name for friend in friends track by friend.uuid"> 
</select>

I have been using @Mohammed Safeer solution for a while and I made a few improvements. Using formated dates is a bad practice while working in your controllers. moment().format() should be used only for display purposes in views. Also remember that moment().clone() ensures separation from input parameters, meaning that the input dates are not altered. I strongly encourage you to use moment.js when working with dates.

Usage:

• Provide moment.js dates as values for startDate, endDate parameters
• interval parameter is optional and defaults to 'days'. Use intervals suported by .add() method (moment.js). More details here
• total parameter is useful when specifying intervals in minutes. It defaults to 1.

Invoke:

var startDate = moment(),
    endDate = moment().add(1, 'days');

getDatesRangeArray(startDate, endDate, 'minutes', 30);

Function:

var getDatesRangeArray = function (startDate, endDate, interval, total) {
    var config = {
            interval: interval || 'days',
            total: total || 1
        },
        dateArray = [],
        currentDate = startDate.clone();

    while (currentDate < endDate) {
        dateArray.push(currentDate);
        currentDate = currentDate.clone().add(config.total, config.interval);
    }

    return dateArray;
};

I am going to assume this is a WinForms questions (which it feels like, based on it being a "program" rather than a website/app). In which case you can simple do the following to change the text colour of a label:

myLabel.ForeColor = System.Drawing.Color.Red;

Or any other colour of your choice. If you want to be more specific you can use an RGB value like so:

myLabel.ForeColor = Color.FromArgb(0, 0, 0);//(R, G, B) (0, 0, 0 = black)

Having different colours for different users can be done a number of ways. For example, you could allow each user to specify their own RGB value colours, store these somewhere and then load them when the user "connects".

An alternative method could be to just use 2 colours - 1 for the current user (running the app) and another colour for everyone else. This would help the user quickly identify their own messages above others.

A third approach could be to generate the colour randomly - however you will likely get conflicting values that do not show well against your background, so I would suggest not taking this approach. You could have a pre-defined list of "acceptable" colours and just pop one from that list for each user that joins.

If you use Spring framework then you can use method:

org.springframework.util.StringUtils.isEmpty(@Nullable Object str);

This method accepts any Object as an argument, comparing it to null and the empty String. As a consequence, this method will never return true for a non-null non-String object.

Dummy data (you should supply this for us)

visual1 = data.frame(ISSUE_DATE=runif(100,2006,2008),COUNTED=runif(100,0,50))
visual2 = data.frame(ISSUE_DATE=runif(100,2006,2008),COUNTED=runif(100,0,50))

combine:

visuals = rbind(visual1,visual2)
visuals$vis=c(rep("visual1",100),rep("visual2",100)) # 100 points of each flavour

Now do:

 ggplot(visuals, aes(ISSUE_DATE,COUNTED,group=vis,col=vis)) + 
   geom_point() + geom_smooth()

and adjust colours etc to taste.

On most platforms, long and int are the same size (32 bits). Still, it does have its own format specifier:

long n;
unsigned long un;
printf("%ld", n); // signed
printf("%lu", un); // unsigned

For 64 bits, you'd want a long long:

long long n;
unsigned long long un;
printf("%lld", n); // signed
printf("%llu", un); // unsigned

Oh, and of course, it's different in Windows:

printf("%l64d", n); // signed
printf("%l64u", un); // unsigned

Frequently, when I'm printing 64-bit values, I find it helpful to print them in hex (usually with numbers that big, they are pointers or bit fields).

unsigned long long n;
printf("0x%016llX", n); // "0x" followed by "0-padded", "16 char wide", "long long", "HEX with 0-9A-F"

will print:

0x00000000DEADBEEF

Btw, "long" doesn't mean that much anymore (on mainstream x64). "int" is the platform default int size, typically 32 bits. "long" is usually the same size. However, they have different portability semantics on older platforms (and modern embedded platforms!). "long long" is a 64-bit number and usually what people meant to use unless they really really knew what they were doing editing a piece of x-platform portable code. Even then, they probably would have used a macro instead to capture the semantic meaning of the type (eg uint64_t).

char c;       // 8 bits
short s;      // 16 bits
int i;        // 32 bits (on modern platforms)
long l;       // 32 bits
long long ll; // 64 bits 

Back in the day, "int" was 16 bits. You'd think it would now be 64 bits, but no, that would have caused insane portability issues. Of course, even this is a simplification of the arcane and history-rich truth. See wiki:Integer

You can log out and rediret to your site:

var logout = function() {
    document.location.href = "https://www.google.com/accounts/Logout?continue=https://appengine.google.com/_ah/logout?continue=http://www.example.com";
}

What is wrong with using string.Length?

// len will be 5
int len = "Hello".Length;

Views

They evaluate the data in the tables underlying the view definition at the time the view is queried. It is a logical view of your tables, with no data stored anywhere else.

The upside of a view is that it will always return the latest data to you. The downside of a view is that its performance depends on how good a select statement the view is based on. If the select statement used by the view joins many tables, or uses joins based on non-indexed columns, the view could perform poorly.

Materialized views

They are similar to regular views, in that they are a logical view of your data (based on a select statement), however, the underlying query result set has been saved to a table. The upside of this is that when you query a materialized view, you are querying a table, which may also be indexed.

In addition, because all the joins have been resolved at materialized view refresh time, you pay the price of the join once (or as often as you refresh your materialized view), rather than each time you select from the materialized view. In addition, with query rewrite enabled, Oracle can optimize a query that selects from the source of your materialized view in such a way that it instead reads from your materialized view. In situations where you create materialized views as forms of aggregate tables, or as copies of frequently executed queries, this can greatly speed up the response time of your end user application. The downside though is that the data you get back from the materialized view is only as up to date as the last time the materialized view has been refreshed.

Materialized views can be set to refresh manually, on a set schedule, or based on the database detecting a change in data from one of the underlying tables. Materialized views can be incrementally updated by combining them with materialized view logs, which act as change data capture sources on the underlying tables.

Materialized views are most often used in data warehousing / business intelligence applications where querying large fact tables with thousands of millions of rows would result in query response times that resulted in an unusable application.

Materialized views also help to guarantee a consistent moment in time, similar to snapshot isolation.

Please note, the way that build parameters are accessed inside pipeline scripts (pipeline plugin) has changed. This approach:

getBinding().hasVariable("MY_PARAM")

Is not working anymore. Please try this instead:

def myBool = env.getEnvironment().containsKey("MY_BOOL") ? Boolean.parseBoolean("$env.MY_BOOL") : false

Your method will return a local stack variable that will fail badly. To return an array, create one outside the function, pass it by address into the function, then modify it, or create an array on the heap and return that variable. Both will work, but the first doesn't require any dynamic memory allocation to get it working correctly.

void returnArray(int size, char *retArray)
{
  // work directly with retArray or memcpy into it from elsewhere like
  // memcpy(retArray, localArray, size); 
}

#define ARRAY_SIZE 20

int main(void)
{
  char foo[ARRAY_SIZE];
  returnArray(ARRAY_SIZE, foo);
}

MSVC 2010 solution, since it doesn't support std::initializer_list<> for vectors but it does support std::end

const char *args[] = {"hello", "world!"};
std::vector<std::string> v(args, std::end(args));

For a more aesthetic appearance :) can be:

left:-9999em; 
top:-9999em; 

position for .sNv2 .nav UL can be replaced by z-index:-1 and z-index:1 for .sNv2 .nav LI:Hover UL

To avoid SQL Injection with varchar parameters you could use

function sqlExecuteRead($connectionString, $sqlCommand, $pars) {

    $connection = new-object system.data.SqlClient.SQLConnection($connectionString)
    $connection.Open()
    $command = new-object system.data.sqlclient.sqlcommand($sqlCommand, $connection)

    if ($pars -and $pars.Keys) {
        foreach($key in $pars.keys) {
            # avoid injection in varchar parameters
            $par = $command.Parameters.Add("@$key", [system.data.SqlDbType]::VarChar, 512);
            $par.Value = $pars[$key];
        }
    }

    $adapter = New-Object System.Data.sqlclient.sqlDataAdapter $command
    $dataset = New-Object System.Data.DataSet
    $adapter.Fill($dataset) | Out-Null
    $connection.Close()
    return $dataset.tables[0].rows

}

$connectionString = "connectionstringHere"
$sql = "select top 10 Message, TimeStamp, Level from dbo.log " +
    "where Message = @MSG and Level like @LEVEL"
$pars = @{
    MSG = 'this is a test from powershell'
    LEVEL = 'aaa%'
};
sqlExecuteRead $connectionString $sql $pars

ps x | grep SCREEN

to see what is that screen running in case you used the command

screen -A -m -d php make_something.php

$('.clickable').hover(function(){
      $('.selector').stop(true,true).fadeTo( 400 , 0.0, function() {
        $('.selector').css('background-image',"url('assets/img/pic2.jpg')");
        });
    $('.selector').fadeTo( 400 , 1);
},
function(){
      $('.selector').stop(false,true).fadeTo( 400 , 0.0, function() {
        $('.selector').css('background-image',"url('assets/img/pic.jpg')");
        });
    $('.selector').fadeTo( 400 , 1);
}

);

Great question.

It can be achieved via an extension:

• For Chrome, load undisposition
• If the file loading is ASCII then colour coding may be desirable, that can be done via the Syntaxtic extension
• btw, for Firefox load the InlineDisposition add-on

not sure if you solved your question, but I found this worked to increment the row number upon dragging.

= INDIRECT("'"&$A$5&"'!$G"&7+B1)

Where B1 refers to an index number, starting at 0.

So if you copy-drag both the index cell and the cell with the indirect formula, you'll increment the indirect. You could probably create a more elegant counter with the Index function too.

Hope this helps.

To change the character set encoding to UTF-8 for the database itself, type the following command at the mysql> prompt. USE ALTER DATABASE.. Replace DBNAME with the database name:

ALTER DATABASE DBNAME CHARACTER SET utf8 COLLATE utf8_general_ci;

This is a duplicate of this question How to convert an entire MySQL database characterset and collation to UTF-8?

I used this a little example and it worked.

$('#date').datetimepicker({
    defaultDate: new Date()
});

demo : http://jsfiddle.net/m2fjw57b/1/

Your "SQL Server Browser" service has to be started too.

Browse to Computer Management > Services.

Find find "SQL Server Browser"

1. set it to Automatic
2. and also Manually start it (2)

Hope it helps.

For SQL Server 2005 and above use Coalesce for nulls and I am using Cast or Convert if there are numeric values -

declare @CodeNameString  nvarchar(max)
select  @CodeNameString = COALESCE(@CodeNameString + ',', '')  + Cast(CodeName as varchar) from AccountCodes  ORDER BY Sort
select  @CodeNameString

import binascii

binascii.a2b_hex(hex_string)

Thats the way I did it.

All you need to do is to add app.UseStaticFiles(); in your startup.cs -> public void Configure(IApplicationBuilder app, IHostingEnvironment env).

ASP.net core provides an excellent way to get static files. That is using the wwwroot folder. Please read Static files in ASP.NET Core.

Using the <Link /> is not a very good idea. Why would someone add the link tag on each HTML or cshtml for the favicon.ico?

How to convert a number to a string in C++03

1. Do not use the itoa or itof functions because they are non-standard and therefore not portable.
   

2. Use string streams
   

    #include <sstream>  //include this to use string streams
    #include <string> 
   
   int main()
   {    
       int number = 1234;
   
       std::ostringstream ostr; //output string stream
       ostr << number; //use the string stream just like cout,
       //except the stream prints not to stdout but to a string.
   
       std::string theNumberString = ostr.str(); //the str() function of the stream 
       //returns the string.
   
       //now  theNumberString is "1234"  
   }
   

   Note that you can use string streams also to convert floating-point numbers to string, and also to format the string as you wish, just like with cout

   std::ostringstream ostr;
   float f = 1.2;
   int i = 3;
   ostr << f << " + " i << " = " << f + i;   
   std::string s = ostr.str();
   //now s is "1.2 + 3 = 4.2" 
   

   You can use stream manipulators, such as std::endl, std::hex and functions std::setw(), std::setprecision() etc. with string streams in exactly the same manner as with cout

   Do not confuse std::ostringstream with std::ostrstream. The latter is deprecated

3. Use boost lexical cast. If you are not familiar with boost, it is a good idea to start with a small library like this lexical_cast. To download and install boost and its documentation go here. Although boost isn't in C++ standard many libraries of boost get standardized eventually and boost is widely considered of the best C++ libraries.

   Lexical cast uses streams underneath, so basically this option is the same as the previous one, just less verbose.

   #include <boost/lexical_cast.hpp>
   #include <string>
   
   int main()
   {
      float f = 1.2;
      int i = 42;
      std::string sf = boost::lexical_cast<std::string>(f); //sf is "1.2"
      std::string si = boost::lexical_cast<std::string>(i); //sf is "42"
   }
   

How to convert a string to a number in C++03

1. The most lightweight option, inherited from C, is the functions atoi (for integers (alphabetical to integer)) and atof (for floating-point values (alphabetical to float)). These functions take a C-style string as an argument (const char *) and therefore their usage may be considered a not exactly good C++ practice. cplusplus.com has easy-to-understand documentation on both atoi and atof including how they behave in case of bad input. However the link contains an error in that according to the standard if the input number is too large to fit in the target type, the behavior is undefined.

   #include <cstdlib> //the standard C library header
   #include <string>
   int main()
   {
       std::string si = "12";
       std::string sf = "1.2";
       int i = atoi(si.c_str()); //the c_str() function "converts" 
       double f = atof(sf.c_str()); //std::string to const char*
   }
   

2. Use string streams (this time input string stream, istringstream). Again, istringstream is used just like cin. Again, do not confuse istringstream with istrstream. The latter is deprecated.

   #include <sstream>
   #include <string>
   int main()
   {
      std::string inputString = "1234 12.3 44";
      std::istringstream istr(inputString);
      int i1, i2;
      float f;
      istr >> i1 >> f >> i2;
      //i1 is 1234, f is 12.3, i2 is 44  
   }
   

3. Use boost lexical cast.

   #include <boost/lexical_cast.hpp>
   #include <string>
   
   int main()
   {
      std::string sf = "42.2"; 
      std::string si = "42";
      float f = boost::lexical_cast<float>(sf); //f is 42.2
      int i = boost::lexical_cast<int>(si);  //i is 42
   }       
   

   In case of a bad input, lexical_cast throws an exception of type boost::bad_lexical_cast

Yes, you may use both ways. If you just want to separate the elements and show they in separated lines, a list is simpler:

set list=A B C D

A list of values separated by space may be easily processed by for command:

(for %%a in (%list%) do (
   echo %%a
   echo/
)) > theFile.txt

You may also create an array this way:

setlocal EnableDelayedExpansion
set n=0
for %%a in (A B C D) do (
   set vector[!n!]=%%a
   set /A n+=1
)

and show the array elements this way:

(for /L %%i in (0,1,3) do (
   echo !vector[%%i]!
   echo/
)) > theFile.txt

For further details about array management in Batch files, see: Arrays, linked lists and other data structures in cmd.exe (batch) script

ATTENTION! You must know that all characters included in set command are inserted in the variable name (at left of equal sign), or in the variable value. For example, this command:

set list = "A B C D"

create a variable called list (list-space) with the value "A B C D" (space, quote, A, etc). For this reason, it is a good idea to never insert spaces in set commands. If you need to enclose the value in quotes, you must enclose both the variable name and its value:

set "list=A B C D"

PS - You should NOT use ECHO. in order to left blank lines! An alternative is ECHO/. For further details about this point, see: http://www.dostips.com/forum/viewtopic.php?f=3&t=774

Another option is to make use of the $hidden property on the model to hide the columns you don't want to display. You can define this property on the fly or set defaults on your model.

public static $hidden = array('password');

Now the users password will be hidden when you return the JSON response.

You can also set it on the fly in a similar manner.

User::$hidden = array('password');

I'm new to R as well and faced the exact same problem. But then I looked at my data and noticed that it is being caused due to the fact that my csv file was using a comma separator (,) in all numeric columns (Ex: 1,233,444.56 instead of 1233444.56).

I removed the comma separator in my csv file and then reloaded into R. My data frame now recognises all columns as numbers.

I'm sure there's a way to handle this within the read.csv function itself.

Just to extend the @Joseph's answer:

After applying these commands your global .gitconfig file will have the following lines (to speed up the process you can just copy them in the file):

[merge]
    tool = kdiff3
[mergetool "kdiff3"]
    path = C:/Program Files/KDiff3/kdiff3.exe
    trustExitCode = false
[diff]
    guitool = kdiff3
[difftool "kdiff3"]
    path = C:/Program Files/KDiff3/kdiff3.exe
    trustExitCode = false

The issue here is that you've opened a file and read its contents so the cursor is at the end of the file. By writing to the same file handle, you're essentially appending to the file.

The easiest solution would be to close the file after you've read it in, then reopen it for writing.

with open("replayScript.json", "r") as jsonFile:
    data = json.load(jsonFile)

data["location"] = "NewPath"

with open("replayScript.json", "w") as jsonFile:
    json.dump(data, jsonFile)

Alternatively, you can use seek() to move the cursor back to the beginning of the file then start writing, followed by a truncate() to deal with the case where the new data is smaller than the previous.

with open("replayScript.json", "r+") as jsonFile:
    data = json.load(jsonFile)

    data["location"] = "NewPath"

    jsonFile.seek(0)  # rewind
    json.dump(data, jsonFile)
    jsonFile.truncate()

1. Inside res create folder with name color (like drawable)

2. Right click on color folder. Select new-> color resource file-> create color.xml file (bnv_tab_item_foreground) (Figure 1: File Structure)

3. Copy and paste bnv_tab_item_foreground

<android.support.design.widget.BottomNavigationView
            android:id="@+id/navigation"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginEnd="0dp"
            android:layout_marginStart="0dp"
            app:itemBackground="@color/appcolor"//diffrent color
            app:itemIconTint="@color/bnv_tab_item_foreground" //inside folder 2 diff colors
            app:itemTextColor="@color/bnv_tab_item_foreground"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent"
            app:menu="@menu/navigation" />

bnv_tab_item_foreground:

 <?xml version="1.0" encoding="utf-8"?>
    <selector xmlns:android="http://schemas.android.com/apk/res/android">
        <item android:state_checked="true" android:color="@color/white" />
        <item android:color="@android:color/darker_gray"  />
    </selector>

Figure 1: File Structure:

Extending adam-rosenfield's solution, i think the following will work for multithreaded single producer - single consumer scenario.

int cb_push_back(circular_buffer *cb, const void *item)
{
  void *new_head = (char *)cb->head + cb->sz;
  if (new_head == cb>buffer_end) {
      new_head = cb->buffer;
  }
  if (new_head == cb->tail) {
    return 1;
  }
  memcpy(cb->head, item, cb->sz);
  cb->head = new_head;
  return 0;
}

int cb_pop_front(circular_buffer *cb, void *item)
{
  void *new_tail = cb->tail + cb->sz;
  if (cb->head == cb->tail) {
    return 1;
  }
  memcpy(item, cb->tail, cb->sz);
  if (new_tail == cb->buffer_end) {
    new_tail = cb->buffer;
  }
  cb->tail = new_tail;
  return 0;
}

Have no idea about gd2, but I have done a similar thing with gd and it was not that hard.

Go to http://www.php.net/ and search for things like

• ImageCreate
• imageline
• imagestring

It's not as flashy as some of those other solution out there, but since you generate a picture it will work in all browsers. (except lynx... :-) )

/Johan

Update: I nearly forgot, don't use jpeg for this type of pictures. The jpeg artefacts will be really annoying, png is a better solution.

For MS SQL CEILING(your number) will round it up. FLOOR(your number) will round it down

A reset will normally change everything, but you can use git stash to pick what you want to keep. As you mentioned, stash doesn't accept a path directly, but it can still be used to keep a specific path with the --keep-index flag. In your example, you would stash the b directory, then reset everything else.

# How to make files a/* reappear without changing b and without recreating a/c?
git add b               #add the directory you want to keep
git stash --keep-index  #stash anything that isn't added
git reset               #unstage the b directory
git stash drop          #clean up the stash (optional)

This gets you to a point where the last part of your script will output this:

After checkout:
# On branch master
# Changes not staged for commit:
#
#   modified:   b/a/ba
#
no changes added to commit (use "git add" and/or "git commit -a")
a/a/aa
a/b/ab
b/a/ba

I believe this was the target result (b remains modified, a/* files are back, a/c is not recreated).

This approach has the added benefit of being very flexible; you can get as fine-grained as you want adding specific files, but not other ones, in a directory.

I know this is old, but for the sake of somebody looking for an answer...

There's a JSON library for MYSQL that can be found here You need to have root access to your server and be comfortable installing plugins (it's simple).

1) upload the lib_mysqludf_json.so into the plugins directory of your mysql installation

2) run the lib_mysqludf_json.sql file (it pretty much does all of the work for you. If you run into trouble just delete anything that starts with 'DROP FUNCTION...')

3) encode your query in something like this:

SELECT json_array(
         group_concat(json_object( name, email))
FROM ....
WHERE ...

and it will return something like

[ 
   { 
     "name": "something",
     "email": "[email protected]"
    }, 
   { 
     "name": "someone",
     "email": "[email protected]"
    }

]

SELECT DISTINCT (user_id) 
FROM [user]
WHERE user.user_id In (select user_id from user where ancestry = 'England') 
    And user.user_id In (select user_id from user where ancestry = 'France') 
    And user.user_id In (select user_id from user where ancestry = 'Germany');`

private void ResetAllProperties()
    {
        Type type = this.GetType();
        PropertyInfo[] properties = (from c in type.GetProperties()
                                     where c.Name.StartsWith("Doc")
                                     select c).ToArray();
        foreach (PropertyInfo item in properties)
        {
            if (item.PropertyType.FullName == "System.String")
                item.SetValue(this, "", null);
        }
    }

I used the code block above to reset all string properties in my web user control object which names are started with "Doc".