I know this post is about adding a single line break but I thought I would mention that you can create multiple line breaks with the backslash (\) character:

Hello
\
\
\
World!

This would result in 3 new lines after "Hello". To clarify, that would mean 2 empty lines between "Hello" and "World!". It would display like this:

World!

Personally I find this cleaner for a large number of line breaks compared to using <br>.

Note that backslashes are not recommended for compatibility reasons. So this may not be supported by your Markdown parser but it's handy when it is.

The integer math solution that Ian provided is nice, but suffers from an integer overflow bug. Assuming the variables are all int, the solution could be rewritten to use long math and avoid the bug:

int pageCount = (-1L + records + recordsPerPage) / recordsPerPage;

If records is a long, the bug remains. The modulus solution does not have the bug.

I was quite inspired by the last answer by mklement0 - I have few scripts/small programs I run at every reboot via /etc/crontab. I built on his answer and built a login script, which shows if my programs are still running. I execute this scripts.sh via .profile -file on every login, to get instant notification on each login.

cat scripts.sh 
#!/bin/bash

getscript() {
  pgrep -lf ".[ /]$1( |\$)"
}

script1=keepalive.sh
script2=logger_v3.py

# test if script 1 is running
if getscript "$script1" >/dev/null; then
  echo "$script1" is RUNNING
  else
    echo "$script1" is NOT running
fi

# test if script 2 is running:
if getscript "$script2" >/dev/null; then
  echo "$script2" is RUNNING
  else
    echo "$script2" is NOT running
fi

This worked well for me (MySQL 5.5), also solving the problem of a "starting" position.

SELECT
    IF(res.nextID, res.nextID, @r) AS nextID
FROM
    (SELECT @r := 30) AS vars,
    (
    SELECT MIN(t1.id + 1) AS nextID
    FROM test t1
    LEFT JOIN test t2
      ON t1.id + 1 = t2.id
    WHERE t1.id >= @r
      AND t2.id IS NULL
      AND EXISTS (
          SELECT id
          FROM test
          WHERE id = @r
      )
  LIMIT 1
  ) AS res
LIMIT 1

As mentioned before these types of queries are very slow, at least in MySQL.

Microsoft® SQL Server™ 2000 uses these SQL-92 keywords for outer joins specified in a FROM clause:

• LEFT OUTER JOIN or LEFT JOIN

• RIGHT OUTER JOIN or RIGHT JOIN

• FULL OUTER JOIN or FULL JOIN

From MSDN

The full outer join or full join returns all rows from both tables, matching up the rows wherever a match can be made and placing NULLs in the places where no matching row exists.

I/O bound refers to a condition in which the time it takes to complete a computation is determined principally by the period spent waiting for input/output operations to be completed.

This is the opposite of a task being CPU bound. This circumstance arises when the rate at which data is requested is slower than the rate it is consumed or, in other words, more time is spent requesting data than processing it.

A very simple solution is to search your file(s) for non-ascii characters using a regular expression. This will nicely highlight all the spots where they are found with a border.

Search for [^\x00-\x7F] and check the box for Regex.

The result will look like this (in dark mode):

In python, use and instead of && like this:

#!/usr/bin/python
foo = True;
bar = True;
if foo and bar:
    print "both are true";

This prints:

both are true

I tried with the above answers, but they didn't worked out for me; So as user3475960 referred, I used $('#startdate').html() which gave me the html text so i used it as necessary... May be some one will make use of it..

See the 9 line of your code,it may be an error; it should be:

mail.smtp.user 

not

mail.stmp.user;

In newer versions of Notepad++ (currently 5.9), this option is under:

View->Show Symbol->Show All Characters

or

View->Show Symbol->Show White Space and Tab

Are you sure the curl module honors ini_set('user_agent',...)? There is an option CURLOPT_USERAGENT described at http://docs.php.net/function.curl-setopt.
Could there also be a cookie tested by the server? That you can handle by using CURLOPT_COOKIE, CURLOPT_COOKIEFILE and/or CURLOPT_COOKIEJAR.

edit: Since the request uses https there might also be error in verifying the certificate, see CURLOPT_SSL_VERIFYPEER.

$url="https://new.aol.com/productsweb/subflows/ScreenNameFlow/AjaxSNAction.do?s=username&f=firstname&l=lastname";
$agent= 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.0.3705; .NET CLR 1.1.4322)';

$ch = curl_init();
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_VERBOSE, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_USERAGENT, $agent);
curl_setopt($ch, CURLOPT_URL,$url);
$result=curl_exec($ch);
var_dump($result);

Take a look at the keypress function.

I believe the enter key is 13 so you would want something like:

$('#searchButton').keypress(function(e){
    if(e.which == 13){  //Enter is key 13
        //Do something
    }
});

My solution was to use the "-OutBuffer 2147483647" parameter in my query, which is part of the Common Parameters. PS C:> Get-Help about_CommonParameters -Full

My version of hex2rbg:

1. Accept short hex like #fff
2. Algorithm compacity is o(n), should faster than using regex. e.g String.replace, String.split, String.match etc..
3. Use constant space.
4. Support rgb and rgba.

you may need remove hex.trim() if you are using IE8.

e.g.

hex2rgb('#fff') //rgb(255,255,255) 
hex2rgb('#fff', 1) //rgba(255,255,255,1) 
hex2rgb('#ffffff') //rgb(255,255,255)  
hex2rgb('#ffffff', 1) //rgba(255,255,255,1)

code:

function hex2rgb (hex, opacity) {
    hex = hex.trim();
    hex = hex[0] === '#' ? hex.substr(1) : hex;
    var bigint = parseInt(hex, 16), h = [];
    if (hex.length === 3) {
        h.push((bigint >> 4) & 255);
        h.push((bigint >> 2) & 255);
    } else {
        h.push((bigint >> 16) & 255);
        h.push((bigint >> 8) & 255);
    }
    h.push(bigint & 255);
    if (arguments.length === 2) {
        h.push(opacity);
        return 'rgba('+h.join()+')';
    } else {
        return 'rgb('+h.join()+')';
    }
}

This single command line is easy to remember:

npx kill-port 3000

For a more powerful tool with search:

npx fkill-cli

PS: They use third party javascript packages. npx comes built in with Node.js.

Sources: tweet | github

System wide C++ change on Ubuntu:

sudo apt-get install clang
sudo update-alternatives --config c++

Will print something like this:

  Selection    Path              Priority   Status
------------------------------------------------------------
* 0            /usr/bin/g++       20        auto mode
  1            /usr/bin/clang++   10        manual mode
  2            /usr/bin/g++       20        manual mode

Then just select clang++.

You say you cannot convert the numbers into int because the array can contain elements that cannot be converted to int, but there is no harm in trying:

string[] things = new string[] { "105", "101", "102", "103", "90", "paul", "bob", "lauren", "007", "90" };
Array.Sort(things, CompareThings);

foreach (var thing in things)
    Debug.WriteLine(thing);

Then compare like this:

private static int CompareThings(string x, string y)
{
    int intX, intY;
    if (int.TryParse(x, out intX) && int.TryParse(y, out intY))
        return intX.CompareTo(intY);

    return x.CompareTo(y);
}

Output: 007, 90, 90, 101, 102, 103, 105, bob, lauren, paul

in my case, the war file generated didn't pick up the properties file so had to clean install again in IntelliJ editor.

In javascript there are trues and truthys. When something is true it is obviously true or false. When something is truthy it may or may not be a boolean, but the "cast" value of is a boolean.

Examples.

true == true; // (true) true
1 == true; // (true) truthy
"hello" == true;  // (true) truthy
[1, 2, 3] == true; // (true) truthy
[] == false; // (true) truthy
false == false; // (true) true
0 == false; // (true) truthy
"" == false; // (true) truthy
undefined == false; // (true) truthy
null == false; // (true) truthy

This can make things simpler if you want to check if a string is set or an array has any values.

var users = [];

if(users) {
  // this array is populated. do something with the array
}

var name = "";

if(!name) {
  // you forgot to enter your name!
}

And as stated. expect(something).toBe(true) and expect(something).toBeTrue() is the same. But expect(something).toBeTruthy() is not the same as either of those.

JSON.parse expects valid notation inside a string, whether that be object {}, array [], string "" or number types (int, float, doubles).

If there is potential for what is parsing to be an empty string then the developer should check for it.

If it was built into the function it would add extra cycles, since built in functions are expected to be extremely performant, it makes sense to not program them for the race case.

I did not see anyone using this method:

editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
    @Override
    public void onFocusChange(View view, boolean focused) {
        InputMethodManager keyboard = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
        if (focused)
            keyboard.showSoftInput(editText, 0);
        else
            keyboard.hideSoftInputFromWindow(editText.getWindowToken(), 0);
    }
});

And then just request focus to the editText:

editText.requestFocus();

I was searching for how to do this on a much newer version of xcode than the original question and while the answers here got me where I needed to go, they aren't quite accurate for location anymore. Xcode 11.3.1, you need to go into Preferences -> Components, then select the desired Simulators. You can also select tvOS and watchOS similators from the same window.

From a user experience stand-point, you don't want a major action to be done passively.

Something major like a window close should be the result of an action by the user.

By using ''.join

list1 = ['1', '2', '3']
str1 = ''.join(list1)

Or if the list is of integers, convert the elements before joining them.

list1 = [1, 2, 3]
str1 = ''.join(str(e) for e in list1)

There is an .Offset property on a Range class which allows you to do just what you need

ActiveCell.Offset(numRows, numCols)

follow up on a comment:

Dim newRange as Range
Set newRange = Range(ActiveCell, ActiveCell.Offset(numRows, numCols))

and you can verify by MsgBox newRange.Address

and here's how to assign this range to an array

jQuery.fn.extend({
    zigzag: function () {
        var text = $(this).text();
        var zigzagText = '';
        var toggle = true; //lower/uppper toggle
            $.each(text, function(i, nome) {
                zigzagText += (toggle) ? nome.toUpperCase() : nome.toLowerCase();
                toggle = (toggle) ? false : true;
            });
    return zigzagText;
    }
});

Use Spotlight.

But only the last simulator will be opened. If you used iPad Air 2 last time, Spotlight will open it. If you wanna open iPhone 6s this time, that's a problem.

I solved this problem through the following:

1. In C # I built a String variable.

string userId="";

2. I put my list's item in this variable. I separated the ','.

for example: in C#

userId= "5,44,72,81,126";

and Send to SQL-Server

 SqlParameter param = cmd.Parameters.AddWithValue("@user_id_list",userId);

3. I Create Separated Function in SQL-server For Convert my Received List (that it's type is NVARCHAR(Max)) to Table.

CREATE FUNCTION dbo.SplitInts  
(  
   @List      VARCHAR(MAX),  
   @Delimiter VARCHAR(255)  
)  
RETURNS TABLE  
AS  
  RETURN ( SELECT Item = CONVERT(INT, Item) FROM  
      ( SELECT Item = x.i.value('(./text())[1]', 'varchar(max)')  
        FROM ( SELECT [XML] = CONVERT(XML, '<i>'  
        + REPLACE(@List, @Delimiter, '</i><i>') + '</i>').query('.')  
          ) AS a CROSS APPLY [XML].nodes('i') AS x(i) ) AS y  
      WHERE Item IS NOT NULL  
  );

4. In the main Store Procedure, using the command below, I use the entry list.

SELECT user_id = Item FROM dbo.SplitInts(@user_id_list, ',');

<?php
  $field = 'display_name';
  the_author_meta($field);
?>

Valid values for the $field parameter include:

• admin_color
• aim
• comment_shortcuts
• description
• display_name
• first_name
• ID
• jabber
• last_name
• nickname
• plugins_last_view
• plugins_per_page
• rich_editing
• syntax_highlighting
• user_activation_key
• user_description
• user_email
• user_firstname
• user_lastname
• user_level
• user_login
• user_nicename
• user_pass
• user_registered
• user_status
• user_url
• yim

The best answer here:

https://www.git-tower.com/learn/git/glossary/origin

In Git, "origin" is a shorthand name for the remote repository that a project was originally cloned from. More precisely, it is used instead of that original repository's URL - and thereby makes referencing much easier.

Nice one, big thanks to Max.

I've wrapped the functionality in his answer into jQuery if anyone wants to use it.

(function($) {
    $.fn.getCursorPosition = function() {
        var input = this.get(0);
        if (!input) return; // No (input) element found
        if ('selectionStart' in input) {
            // Standard-compliant browsers
            return input.selectionStart;
        } else if (document.selection) {
            // IE
            input.focus();
            var sel = document.selection.createRange();
            var selLen = document.selection.createRange().text.length;
            sel.moveStart('character', -input.value.length);
            return sel.text.length - selLen;
        }
    }
})(jQuery);

Quite simply as follows:

/**
 * @author The Elite Gentleman
 *
 */
public enum MyEnum {
    ONE("one"), TWO("two")
    ;
    private final String value;

    private MyEnum(final String value) {
        this.value = value;
    }

    public String getValue() {
        return value;
    }

    @Override
    public String toString() {
        // TODO Auto-generated method stub
        return getValue();
    }
}

For more info, visit Enum Types from Oracle Java Tutorials. Also, bear in mind that enums have private constructor.

Update, since you've updated your post, I've changed my value from an int to a String.
Related: Java String enum.

If your test class extends the Spring JUnit classes
(e.g., AbstractTransactionalJUnit4SpringContextTests or any other class that extends AbstractSpringContextTests), you can access the app context by calling the getContext() method.
Check out the javadocs for the package org.springframework.test.

As already mentioned, compiling the app in x64 gives you far more available memory.

But in the case one must build an app in x86, there is a way to raise the memory limit from 1,2GB to 4GB (which is the actual limit for 32 bit processes):

In the VC/bin folder of the Visual Studio installation directory, there must be an editbin.exe file. So in my default installation I find it under

C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\editbin.exe

In order to make the program work, maybe you must execute vcvars32.bat in the same directory first. Then a

editbin /LARGEADDRESSAWARE <your compiled exe file>

is enough to let your program use 4GB RAM. <your compiled exe file> is the exe, which VS generated while compiling your project.

If you want to automate this behavior every time you compile your project, use the following Post-Build event for the executed project:

if exist "$(DevEnvDir)..\tools\vsvars32.bat" (
   call "$(DevEnvDir)..\tools\vsvars32.bat"
   editbin /largeaddressaware "$(TargetPath)"
)

Sidenote: The same can be done with the devenv.exe to let Visual Studio also use 4GB RAM instead of 1.2GB (but first backup the old devenv.exe).

As suggested by @The Berga You can add android:layoutDirection="rtl" but it's only available with API 17.
for dynamic implementation, here it goes

chkBox.setLayoutDirection(View.LAYOUT_DIRECTION_RTL);

I solved it setting in Eclipse:

Windows --> Preferences --> Java --> Debug --> Debugger timeout: 10000

Before I had set "Debugger timeout: 3000" and I had problems with timeout.

The format specifers matter: "%s" says that the next string is a narrow string ("ascii" and typically 8 bits per character). "%S" means wide char string. Mixing the two will give "undefined behaviour", which includes printing garbage, just one character or nothing.

One character is printed because wide chars are, for example, 16 bits wide, and the first byte is non-zero, followed by a zero byte -> end of string in narrow strings. This depends on byte-order, in a "big endian" machine, you'd get no string at all, because the first byte is zero, and the next byte contains a non-zero value.

range() and xrange() take a third parameter that specifies a step. So you can do the following.

range(10, 0, -1)

Which gives

[10, 9, 8, 7, 6, 5, 4, 3, 2, 1] 

But for iteration, you should really be using xrange instead. So,

xrange(10, 0, -1)

Note for Python 3 users: There are no separate range and xrange functions in Python 3, there is just range, which follows the design of Python 2's xrange.

It is very dependent of the engine that you use for generating html files. If you are using Hugo for generating htmls you have to write down like this:

<a href="https://example.com" target="_blank" rel="noopener"><span>Example Text</span> </a>.

you can use Dependency Walker to view the function name. you can see the function's parameters only if it's decorated. read the following from the FAQ:

How do I view the parameter and return types of a function? For most functions, this information is simply not present in the module. The Windows' module file format only provides a single text string to identify each function. There is no structured way to list the number of parameters, the parameter types, or the return type. However, some languages do something called function "decoration" or "mangling", which is the process of encoding information into the text string. For example, a function like int Foo(int, int) encoded with simple decoration might be exported as _Foo@8. The 8 refers to the number of bytes used by the parameters. If C++ decoration is used, the function would be exported as ?Foo@@YGHHH@Z, which can be directly decoded back to the function's original prototype: int Foo(int, int). Dependency Walker supports C++ undecoration by using the Undecorate C++ Functions Command.

This is how I mange to get (as currently there is no direct support- in future it will be for sure) python 3.9 in anaconda and windows 10
Note: I needed extra packages so install them, install only what you need

conda create --name e39 python=3.9 --channel conda-forge

Swift 4 for mxcl answer:

txtFirstname.addTarget(txtLastname, action: 
#selector(becomeFirstResponder), for: UIControlEvents.editingDidEndOnExit)

There is a constant that you can check against:

someBigDecimal.compareTo(BigDecimal.ZERO) == 0

Use Apache commons beanutils:

static void copyProperties(Object dest, Object orig) -Copy property values from the origin bean to the destination bean for all cases where the property names are the same.

http://commons.apache.org/proper/commons-beanutils/

string s = "kg g L000145.50\r\n";
        char theCharacter = '.';
        var getNumbers = (from t in s
                          where char.IsDigit(t) || t.Equals(theCharacter)
                          select t).ToArray();
        var _str = string.Empty;
        foreach (var item in getNumbers)
        {
            _str += item.ToString();
        }
        double _dou = Convert.ToDouble(_str);
        MessageBox.Show(_dou.ToString("#,##0.00"));

Since you are in a controller, the action method is given a Request parameter.

You can access all POST data with $request->request->all();. This returns a key-value pair array.

When using GET requests you access data using $request->query->all();

Languages do not need to behave exactly like Java to be object-oriented. Everything in Javascript is an object; compare to C++ or earlier Java, which are widely considered object-oriented to some degree but still based on primitives. Polymorphism is a non-issue in Javascript, as it doesn't much care about types at all. The only core OO feature not directly supported by the syntax is inheritance, but that can easily be implemented however the programmer wants using prototypes: here is one such example.

Have a look at Determine and count unique values of an array.

Or, to count the number of occurrences of 5, simply do

sum(your_matrix == 5)

When you add the python directory to the path (Computer > Properties > Advanced System Settings > Advanced > Environmental Variables > System Variables > Path > Edit), remember to add a semicolon, then make sure that you are adding the precise directory where the file "python.exe" is stored (e.g. C:\Python\Python27 if that is where "python.exe" is stored). Then restart the command prompt.

You need to call the appendChild function to append your new element to an existing element in the DOM.

if all solutions up did not work for you, make sure the service is running and not set to Disabled!
Go to Services from Control panel and open Services,
Search for Apache2.4 and mysql then switch it to enabled, in the column of status it should be switched to Running

R/Rscript doesn't have concrete datatypes.

R interpreter has a duck-typing memory allocation system. There is no builtin method to tell you the datatype of your pointer to memory. Duck typing is done for speed, but turned out to be a bad idea because now statements such as: print(is.integer(5)) returns FALSE and is.integer(as.integer(5)) returns TRUE. Go figure.

The R-manual on basic types: https://cran.r-project.org/doc/manuals/R-lang.html#Basic-types

The best you can hope for is to write your own function to probe your pointer to memory, then use process of elimination to decide if it is suitable for your needs.

If your variable is a global or an object:

Your object() needs to be penetrated with get(...) before you can see inside. Example:

a <- 10
myGlobals <- objects()
for(i in myGlobals){
  typeof(i)         #prints character
  typeof(get(i))    #prints integer
}

typeof(...) probes your variable pointer to memory:

The R function typeof has a bias to give you the type at maximum depth, for example.

library(tibble)

#expression              notes                                  type
#----------------------- -------------------------------------- ----------
typeof(TRUE)             #a single boolean:                     logical
typeof(1L)               #a single numeric with L postfixed:    integer
typeof("foobar")         #A single string in double quotes:     character
typeof(1)                #a single numeric:                     double
typeof(list(5,6,7))      #a list of numeric:                    list
typeof(2i)               #an imaginary number                   complex

typeof(5 + 5L)           #double + integer is coerced:          double
typeof(c())              #an empty vector has no type:          NULL
typeof(!5)               #a bang before a double:               logical
typeof(Inf)              #infinity has a type:                  double
typeof(c(5,6,7))         #a vector containing only doubles:     double
typeof(c(c(TRUE)))       #a vector of vector of logicals:       logical
typeof(matrix(1:10))     #a matrix of doubles has a type:       list

typeof(substr("abc",2,2))#a string at index 2 which is 'b' is:  character
typeof(c(5L,6L,7L))      #a vector containing only integers:    integer
typeof(c(NA,NA,NA))      #a vector containing only NA:          logical
typeof(data.frame())     #a data.frame with nothing in it:      list
typeof(data.frame(c(3))) #a data.frame with a double in it:     list
typeof(c("foobar"))      #a vector containing only strings:     character
typeof(pi)               #builtin expression for pi:            double

typeof(1.66)             #a single numeric with mantissa:       double
typeof(1.66L)            #a double with L postfixed             double
typeof(c("foobar"))      #a vector containing only strings:     character
typeof(c(5L, 6L))        #a vector containing only integers:    integer
typeof(c(1.5, 2.5))      #a vector containing only doubles:     double
typeof(c(1.5, 2.5))      #a vector containing only doubles:     double
typeof(c(TRUE, FALSE))   #a vector containing only logicals:    logical

typeof(factor())         #an empty factor has default type:     integer
typeof(factor(3.14))     #a factor containing doubles:          integer
typeof(factor(T, F))     #a factor containing logicals:         integer
typeof(Sys.Date())       #builtin R dates:                      double
typeof(hms::hms(3600))   #hour minute second timestamp          double
typeof(c(T, F))          #T and F are builtins:                 logical
typeof(1:10)             #a builtin sequence of numerics:       integer
typeof(NA)               #The builtin value not available:      logical

typeof(c(list(T)))       #a vector of lists of logical:         list
typeof(list(c(T)))       #a list of vectors of logical:         list
typeof(c(T, 3.14))       #a vector of logicals and doubles:     double
typeof(c(3.14, "foo"))   #a vector of doubles and characters:   character
typeof(c("foo",list(T))) #a vector of strings and lists:        list
typeof(list("foo",c(T))) #a list of strings and vectors:        list
typeof(TRUE + 5L)        #a logical plus an integer:            integer
typeof(c(TRUE, 5L)[1])   #The true is coerced to 1              integer
typeof(c(c(2i), TRUE)[1])#logical coerced to complex:           complex
typeof(c(NaN, 'batman')) #NaN's in a vector don't dominate:     character
typeof(5 && 4)           #doubles are coerced by order of &&    logical
typeof(8 < 'foobar')     #string and double is coerced          logical
typeof(list(4, T)[[1]])  #a list retains type at every index:   double
typeof(list(4, T)[[2]])  #a list retains type at every index:   logical
typeof(2 ** 5)           #result of exponentiation              double
typeof(0E0)              #exponential lol notation              double
typeof(0x3fade)          #hexidecimal                           double
typeof(paste(3, '3'))    #paste promotes types to string        character
typeof(3 + ?)           #R pukes on unicode                    error
typeof(iconv("a", "latin1", "UTF-8")) #UTF-8 characters         character
typeof(5 == 5)           #result of a comparison:               logical

class(...) probes your variable pointer to memory:

The R function class has a bias to give you the type of container or structure encapsulating your types, for example.

library(tibble)

#expression            notes                                    class
#--------------------- ---------------------------------------- ---------
class(matrix(1:10))     #a matrix of doubles has a class:       matrix
class(factor("hi"))     #factor of items is:                    factor
class(TRUE)             #a single boolean:                      logical
class(1L)               #a single numeric with L postfixed:     integer
class("foobar")         #A single string in double quotes:      character
class(1)                #a single numeric:                      numeric
class(list(5,6,7))      #a list of numeric:                     list
class(2i)               #an imaginary                           complex
class(data.frame())     #a data.frame with nothing in it:       data.frame
class(Sys.Date())       #builtin R dates:                       Date
class(sapply)           #a function is                          function
class(charToRaw("hi"))  #convert string to raw:                 raw
class(array("hi"))      #array of items is:                     array

class(5 + 5L)           #double + integer is coerced:          numeric
class(c())              #an empty vector has no class:         NULL
class(!5)               #a bang before a double:               logical
class(Inf)              #infinity has a class:                 numeric
class(c(5,6,7))         #a vector containing only doubles:     numeric
class(c(c(TRUE)))       #a vector of vector of logicals:       logical

class(substr("abc",2,2))#a string at index 2 which is 'b' is:  character
class(c(5L,6L,7L))      #a vector containing only integers:    integer
class(c(NA,NA,NA))      #a vector containing only NA:          logical
class(data.frame(c(3))) #a data.frame with a double in it:     data.frame
class(c("foobar"))      #a vector containing only strings:     character
class(pi)               #builtin expression for pi:            numeric

class(1.66)             #a single numeric with mantissa:       numeric
class(1.66L)            #a double with L postfixed             numeric
class(c("foobar"))      #a vector containing only strings:     character
class(c(5L, 6L))        #a vector containing only integers:    integer
class(c(1.5, 2.5))      #a vector containing only doubles:     numeric
class(c(TRUE, FALSE))   #a vector containing only logicals:    logical

class(factor())       #an empty factor has default class:      factor
class(factor(3.14))   #a factor containing doubles:            factor
class(factor(T, F))   #a factor containing logicals:           factor
class(hms::hms(3600)) #hour minute second timestamp            hms difftime
class(c(T, F))        #T and F are builtins:                   logical
class(1:10)           #a builtin sequence of numerics:         integer
class(NA)             #The builtin value not available:        logical

class(c(list(T)))       #a vector of lists of logical:         list
class(list(c(T)))       #a list of vectors of logical:         list
class(c(T, 3.14))       #a vector of logicals and doubles:     numeric
class(c(3.14, "foo"))   #a vector of doubles and characters:   character
class(c("foo",list(T))) #a vector of strings and lists:        list
class(list("foo",c(T))) #a list of strings and vectors:        list
class(TRUE + 5L)        #a logical plus an integer:            integer
class(c(TRUE, 5L)[1])   #The true is coerced to 1              integer
class(c(c(2i), TRUE)[1])#logical coerced to complex:           complex
class(c(NaN, 'batman')) #NaN's in a vector don't dominate:     character
class(5 && 4)           #doubles are coerced by order of &&    logical
class(8 < 'foobar')     #string and double is coerced          logical
class(list(4, T)[[1]])  #a list retains class at every index:  numeric
class(list(4, T)[[2]])  #a list retains class at every index:  logical
class(2 ** 5)           #result of exponentiation              numeric
class(0E0)              #exponential lol notation              numeric
class(0x3fade)          #hexidecimal                           numeric
class(paste(3, '3'))     #paste promotes class to string       character
class(3 + ?)           #R pukes on unicode                   error
class(iconv("a", "latin1", "UTF-8")) #UTF-8 characters         character
class(5 == 5)           #result of a comparison:               logical

Get the data storage.mode of your variable:

When an R variable is written to disk, the data layout changes again, and is called the data's storage.mode. The function storage.mode(...) reveals this low level information: see Mode, Class, and Type of R objects. You shouldn't need to worry about R's storage.mode unless you are trying to understand delays caused by round trip casts/coercions that occur when assigning and reading data to and from disk.

Demo: R/Rscript gettype(your_variable):

Run this R code then adapt it for your purposes, it'll make a pretty good guess as to what type it is.

get_type <- function(variable){ 
  sz <- as.integer(length(variable)) #length of your variable 
  tof <- typeof(variable)            #typeof your variable 
  cls <- class(variable)             #class of your variable 
  isc <- is.character(variable)      #what is.character() has to say about it.  
  d <- dim(variable)                 #dimensions of your variable 
  isv <- is.vector(variable) 
  if (is.matrix(variable)){  
    d <- dim(t(variable))             #dimensions of your matrix
  }    
  #observations ----> datatype 
  if (sz>=1 && tof == "logical" && cls == "logical" && isv == TRUE){ return("vector of logical") } 
  if (sz>=1 && tof == "integer" && cls == "integer" ){ return("vector of integer") } 
  if (sz==1 && tof == "double"  && cls == "Date" ){ return("Date") } 
  if (sz>=1 && tof == "raw"     && cls == "raw" ){ return("vector of raw") } 
  if (sz>=1 && tof == "double"  && cls == "numeric" ){ return("vector of double") } 
  if (sz>=1 && tof == "double"  && cls == "array" ){ return("vector of array of double") } 
  if (sz>=1 && tof == "character"  && cls == "array" ){ return("vector of array of character") } 
  if (sz>=0 && tof == "list"       && cls == "data.frame" ){ return("data.frame") } 
  if (sz>=1 && isc == TRUE         && isv == TRUE){ return("vector of character") } 
  if (sz>=1 && tof == "complex"    && cls == "complex" ){ return("vector of complex") } 
  if (sz==0 && tof == "NULL"       && cls == "NULL" ){ return("NULL") } 
  if (sz>=0 && tof == "integer"    && cls == "factor" ){ return("factor") } 
  if (sz>=1 && tof == "double"     && cls == "numeric" && isv == TRUE){ return("vector of double") } 
  if (sz>=1 && tof == "double"     && cls == "matrix"){ return("matrix of double") } 
  if (sz>=1 && tof == "character"  && cls == "matrix"){ return("matrix of character") } 
  if (sz>=1 && tof == "list"       && cls == "list" && isv == TRUE){ return("vector of list") } 
  if (sz>=1 && tof == "closure"    && cls == "function" && isv == FALSE){ return("closure/function") } 
  return("it's pointer to memory, bruh") 
} 
assert <- function(a, b){ 
  if (a == b){ 
    cat("P") 
  } 
  else{ 
    cat("\nFAIL!!!  Sniff test:\n") 
    sz <- as.integer(length(variable))   #length of your variable 
    tof <- typeof(variable)              #typeof your variable 
    cls <- class(variable)               #class of your variable 
    isc <- is.character(variable)        #what is.character() has to say about it. 
    d <- dim(variable)                   #dimensions of your variable 
    isv <- is.vector(variable) 
    if (is.matrix(variable)){  
      d <- dim(t(variable))                   #dimensions of your variable 
    } 
    if (!is.function(variable)){ 
      print(paste("value: '", variable, "'")) 
    } 
    print(paste("get_type said: '", a, "'")) 
    print(paste("supposed to be: '", b, "'")) 
 
    cat("\nYour pointer to memory has properties:\n")  
    print(paste("sz: '", sz, "'")) 
    print(paste("tof: '", tof, "'")) 
    print(paste("cls: '", cls, "'")) 
    print(paste("d: '", d, "'")) 
    print(paste("isc: '", isc, "'")) 
    print(paste("isv: '", isv, "'")) 
    quit() 
  } 
}
#these asserts give a sample for exercising the code. 
assert(get_type(TRUE),      "vector of logical")  #everything is a vector in R by default. 
assert(get_type(c(TRUE)),   "vector of logical")  #c() just casts to vector 
assert(get_type(c(c(TRUE))),"vector of logical")  #casting vector multiple times does nothing 
assert(get_type(!5),        "vector of logical")  #bang inflicts 'not truth-like' 
assert(get_type(1L),              "vector of integer")   #naked integers are still vectors of 1 
assert(get_type(c(1L, 2L)),       "vector of integer")   #Longs are not doubles 
assert(get_type(c(1L, c(2L, 3L))),"vector of integer")   #nested vectors of integers 
assert(get_type(c(1L, c(TRUE))),  "vector of integer")   #logicals coerced to integer 
assert(get_type(c(FALSE, c(1L))), "vector of integer")   #logicals coerced to integer 
assert(get_type("foobar"),        "vector of character")    #character here means 'string' 
assert(get_type(c(1L, "foobar")), "vector of character")    #integers are coerced to string 
assert(get_type(5),           "vector of double") 
assert(get_type(5 + 5L),      "vector of double") 
assert(get_type(Inf),         "vector of double") 
assert(get_type(c(5,6,7)),    "vector of double") 
assert(get_type(NaN),           "vector of double") 
assert(get_type(list(5)),       "vector of list")    #your list is in a vector. 
assert(get_type(list(5,6,7)),   "vector of list") 
assert(get_type(c(list(5,6,7))),"vector of list") 
assert(get_type(list(c(5,6),T)),"vector of list")    #vector of list of vector and logical 
assert(get_type(list(5,6,7)),   "vector of list") 
assert(get_type(2i),            "vector of complex") 
assert(get_type(c(2i, 3i, 4i)), "vector of complex") 
assert(get_type(c()),            "NULL") 
assert(get_type(data.frame()),   "data.frame") 
assert(get_type(data.frame(4,5)),"data.frame") 
assert(get_type(Sys.Date()),     "Date") 
assert(get_type(sapply),         "closure/function") 
assert(get_type(charToRaw("hi")),"vector of raw") 
assert(get_type(c(charToRaw("a"), charToRaw("b"))), "vector of raw") 
assert(get_type(array(4)),       "vector of array of double") 
assert(get_type(array(4,5)),     "vector of array of double") 
assert(get_type(array("hi")),    "vector of array of character") 
assert(get_type(factor()),       "factor") 
assert(get_type(factor(3.14)),   "factor") 
assert(get_type(factor(TRUE)),   "factor") 
assert(get_type(matrix(3,4,5)),  "matrix of double") 
assert(get_type(as.matrix(5)),   "matrix of double") 
assert(get_type(matrix("yatta")),"matrix of character") 

I put in a C++/Java/Python ideology here that gives me the scoop of what the memory most looks like. R triad typing system is like trying to nail spaghetti to the wall, <- and <<- will package your matrix to a list when you least suspect. As the old duck-typing saying goes: If it waddles like a duck and if it quacks like a duck and if it has feathers, then it's a duck.

You can make use of variable NF which is set to the total number of fields in the input record:

awk '{print $(NF-1),"\t",$NF}' file

this assumes that you have at least 2 fields.

With all due respect to our unknown (yahoo) poster, I look at code like that and just die a little inside. Alphabet soup is just so insanely difficult to debug. A single typo anywhere in there can really ruin your whole day. Sadly, this particular example lacked variables with underscores. It's so much more fun when we have a_b-c_d*e_f-g_h. Especially when using a font where _ and - have the same pixel length.

Taking up Suvesh Pratapa on his suggestion, I note:

Given 3x3 matrix:
       y0x0  y0x1  y0x2
       y1x0  y1x1  y1x2
       y2x0  y2x1  y2x2
Declared as double matrix [/*Y=*/3] [/*X=*/3];

(A) When taking a minor of a 3x3 array, we have 4 values of interest. The lower X/Y index is always 0 or 1. The higher X/Y index is always 1 or 2. Always! Therefore:

double determinantOfMinor( int          theRowHeightY,
                           int          theColumnWidthX,
                           const double theMatrix [/*Y=*/3] [/*X=*/3] )
{
  int x1 = theColumnWidthX == 0 ? 1 : 0;  /* always either 0 or 1 */
  int x2 = theColumnWidthX == 2 ? 1 : 2;  /* always either 1 or 2 */
  int y1 = theRowHeightY   == 0 ? 1 : 0;  /* always either 0 or 1 */
  int y2 = theRowHeightY   == 2 ? 1 : 2;  /* always either 1 or 2 */

  return ( theMatrix [y1] [x1]  *  theMatrix [y2] [x2] )
      -  ( theMatrix [y1] [x2]  *  theMatrix [y2] [x1] );
}

(B) Determinant is now: (Note the minus sign!)

double determinant( const double theMatrix [/*Y=*/3] [/*X=*/3] )
{
  return ( theMatrix [0] [0]  *  determinantOfMinor( 0, 0, theMatrix ) )
      -  ( theMatrix [0] [1]  *  determinantOfMinor( 0, 1, theMatrix ) )
      +  ( theMatrix [0] [2]  *  determinantOfMinor( 0, 2, theMatrix ) );
}

(C) And the inverse is now:

bool inverse( const double theMatrix [/*Y=*/3] [/*X=*/3],
                    double theOutput [/*Y=*/3] [/*X=*/3] )
{
  double det = determinant( theMatrix );

    /* Arbitrary for now.  This should be something nicer... */
  if ( ABS(det) < 1e-2 )
  {
    memset( theOutput, 0, sizeof theOutput );
    return false;
  }

  double oneOverDeterminant = 1.0 / det;

  for (   int y = 0;  y < 3;  y ++ )
    for ( int x = 0;  x < 3;  x ++   )
    {
        /* Rule is inverse = 1/det * minor of the TRANSPOSE matrix.  *
         * Note (y,x) becomes (x,y) INTENTIONALLY here!              */
      theOutput [y] [x]
        = determinantOfMinor( x, y, theMatrix ) * oneOverDeterminant;

        /* (y0,x1)  (y1,x0)  (y1,x2)  and (y2,x1)  all need to be negated. */
      if( 1 == ((x + y) % 2) )
        theOutput [y] [x] = - theOutput [y] [x];
    }

  return true;
}

And round it out with a little lower-quality testing code:

void printMatrix( const double theMatrix [/*Y=*/3] [/*X=*/3] )
{
  for ( int y = 0;  y < 3;  y ++ )
  {
    cout << "[  ";
    for ( int x = 0;  x < 3;  x ++   )
      cout << theMatrix [y] [x] << "  ";
    cout << "]" << endl;
  }
  cout << endl;
}

void matrixMultiply(  const double theMatrixA [/*Y=*/3] [/*X=*/3],
                      const double theMatrixB [/*Y=*/3] [/*X=*/3],
                            double theOutput  [/*Y=*/3] [/*X=*/3]  )
{
  for (   int y = 0;  y < 3;  y ++ )
    for ( int x = 0;  x < 3;  x ++   )
    {
      theOutput [y] [x] = 0;
      for ( int i = 0;  i < 3;  i ++ )
        theOutput [y] [x] +=  theMatrixA [y] [i] * theMatrixB [i] [x];
    }
}

int
main(int argc, char **argv)
{
  if ( argc > 1 )
    SRANDOM( atoi( argv[1] ) );

  double m[3][3] = { { RANDOM_D(0,1e3), RANDOM_D(0,1e3), RANDOM_D(0,1e3) },
                     { RANDOM_D(0,1e3), RANDOM_D(0,1e3), RANDOM_D(0,1e3) },
                     { RANDOM_D(0,1e3), RANDOM_D(0,1e3), RANDOM_D(0,1e3) } };
  double o[3][3], mm[3][3];

  if ( argc <= 2 )
    cout << fixed << setprecision(3);

  printMatrix(m);
  cout << endl << endl;

  SHOW( determinant(m) );
  cout << endl << endl;

  BOUT( inverse(m, o) );
  printMatrix(m);
  printMatrix(o);
  cout << endl << endl;

  matrixMultiply (m, o, mm );
  printMatrix(m);
  printMatrix(o);
  printMatrix(mm);  
  cout << endl << endl;
}

Afterthought:

You may also want to detect very large determinants as round-off errors will affect your accuracy!

This kind of error can be caused by LF vs CRLF line ending mismatches, e.g. when you're looking at the patch file and you're absolutely sure it should be able to apply, but it just won't.

To test this out, if you have a patch that applies to just one file, you can try running 'unix2dos' or 'dos2unix' on just that file (try both, to see which one causes the file to change; you can get these utilities for Windows as well as Unix), then commit that change as a test commit, then try applying the patch again. If that works, that was the problem.

NB git am applies patches as LF by default (even if the patch file contains CRLF), so if you want to apply CRLF patches to CRLF files you must use git am --keep-cr, as per this answer.

You can try something like this..

CREATE TABLE 'sample'.'picture' ( 
'idpicture' INTEGER UNSIGNED NOT NULL AUTO_INCREMENT, 
'caption' VARCHAR(45) NOT NULL, 
'img' LONGBLOB NOT NULL, 
 PRIMARY KEY('idpicture')) TYPE = InnoDB;

or refer to the following links for tutorials and sample, that might help you.

http://forums.mysql.com/read.php?20,17671,27914

http://mrarrowhead.com/index.php?page=store_images_mysql_php.php

http://www.hockinson.com/programmer-web-designer-denver-co-usa.php?s=47

Initialize your now variable.

time_t now = time(0); // Get the system time

The localtime function is used to convert the time value in the passed time_t to a struct tm, it doesn't actually retrieve the system time.

RapidEXE is exactly for this job:

• SoftPedia page
  
• Author's original page

It converts a php project to a standalone exe. I had enough of all other compilers, tried them one by one and they all disappointed me one way or another. Be my guest, feedbacks are always welcome!

Side note: the mechanism behind it is quite similar to the WinRAR SFX approach; extract engine, extract source, then run. It's just faster and easier to work with. One-command compilation, compressed, smart unpack, auto cleanup, easy config, full control of php engine & version; also extensible with minimal effort.

Happy developing!

Encoding.ASCII.GetString(buf);

Often, in event handlers, such as onsubmit, returning false is a way to tell the event to not actually fire. So, say, in the onsubmit case, this would mean that the form is not submitted.

Struct is to create a data type. The typedef is to set a nickname for a data type.

"Functions have only READ-ONLY Database Access" If DML operations would be allowed in functions then function would be prety similar to stored Procedure.

[root@host]# mysqladmin -u root -p drop [DB]

Enter password:******

I changed Scanner fin = new Scanner(file); to Scanner fin = new Scanner(new File(file)); and it works perfectly now. I didn't think the difference mattered but there you go.

I found this.

String newString = string.replaceAll("\n", " ");

Although, as you have a double line, you will get a double space. I guess you could then do another replace all to replace double spaces with a single one.

If that doesn't work try doing:

string.replaceAll(System.getProperty("line.separator"), " ");

If I create lines in "string" by using "\n" I had to use "\n" in the regex. If I used System.getProperty() I had to use that.

Try to use the empty() function:

<xsl:if test="empty(node/ABC/node()) and empty(node/DEF/node())">
    <xsl:text>This should work</xsl:text>
</xsl:if>

This identifies ABC and DEF as empty in the sense that they do not have any child nodes (no elements, no text nodes, no processing instructions, no comments).

But, as pointed out by @Ian, your elements might not be empty really or that might not be your actual problem - you did not show what your input XML looks like.

Another cause of error could be your relative position in the tree. This way of testing conditions only works if the surrounding template matches the parent element of node or if you iterate over the parent element of node.

It's the first result on Google: http://docs.python.org/library/stdtypes.html#string-formatting

See also the new format() function: http://docs.python.org/library/stdtypes.html#str.format

Just by one line-

var select_button_text = $('#SelectQButton option:selected')
                .toArray().map(item => item.text);

Output: ["text1", "text2"]

var select_button_text = $('#SelectQButton option:selected')
                .toArray().map(item => item.value);

Output: ["value1", "value2"]

If you use .join()

var select_button_text = $('#SelectQButton option:selected')
                .toArray().map(item => item.text).join();

Output: text1,text2,text3

 root/
   assets/
      lib/-------------------------libraries--------------------
          bootstrap/--------------Libraries can have js/css/images------------
              css/
              js/
              images/  
          jquery/
              js/
          font-awesome/
              css/
              images/
     common/--------------------common section will have application level resources             
          css/
          js/
          img/

 index.html

This is how I organized my application's static resources.

Debounced / throttled model updates for angularjs : http://jsfiddle.net/lgersman/vPsGb/3/

In your case there is nothing more to do than using the directive in the jsfiddle code like this:

<input 
    id="searchText" 
    type="search" 
    placeholder="live search..." 
    ng-model="searchText" 
    ng-ampere-debounce
/>

Its basically a small piece of code consisting of a single angular directive named "ng-ampere-debounce" utilizing http://benalman.com/projects/jquery-throttle-debounce-plugin/ which can be attached to any dom element. The directive reorders the attached event handlers so that it can control when to throttle events.

You can use it for throttling/debouncing * model angular updates * angular event handler ng-[event] * jquery event handlers

Have a look : http://jsfiddle.net/lgersman/vPsGb/3/

The directive will be part of the Orangevolt Ampere framework (https://github.com/lgersman/jquery.orangevolt-ampere).

EDIT: ASIHTTPRequest has been abandoned by the developer. It's still really good IMO, but you should probably look elsewhere now.

I'd highly recommend using the ASIHTTPRequest library if you are handling HTTPS. Even without https it provides a really nice wrapper for stuff like this and whilst it's not hard to do yourself over plain http, I just think the library is nice and a great way to get started.

The HTTPS complications are far from trivial in various scenarios, and if you want to be robust in handling all the variations, you'll find the ASI library a real help.

I'm surprised there hasn't been a functional solution suggested that allows you to set the length in one line. The following is based on UnderscoreJS:

var test = _.map(_.range(4), function () { return undefined; });
console.log(test.length);

For reasons mentioned above, I'd avoid doing this unless I wanted to initialize the array to a specific value. It's interesting to note there are other libraries that implement range including Lo-dash and Lazy, which may have different performance characteristics.

You should include <string.h> (or its C++ equivalent, <cstring>).

As some of the previous answers are very right, I just want to make sure from none of you fall in such this problem.

If you set the values to the ArrayList using String.format, you MUST get the position of the value using the same string structure String.format.

An example:

ArrayList<String> myList = new ArrayList<>();
myList.add(String.format(Locale.getDefault() ,"%d", 30));
myList.add(String.format(Locale.getDefault(), "%d", 50));
myList.add(String.format(Locale.getDefault(), "%d", 70));
myList.add(String.format(Locale.getDefault(), "%d", 100));

You must get the position of needed value like this:

myList.setSelection(myAdapter.getPosition(String.format(Locale.getDefault(), "%d", 70)));

Otherwise, you'll get the -1, item not found!

I used Locale.getDefault() because of Arabic language.

I hope that will be helpful for you.

This has always worked for me:

type Props = {
  children: JSX.Element;
};

Have you tried something like:

textbox.text = "text" & system.environment.newline & "some more text"

If you're searching only for the filename, use:

svn list -R file:///subversion/repository | grep filename

Windows:

svn list -R file:///subversion/repository | findstr filename

Otherwise checkout and do filesystem search:

egrep -r _code_ .

Take a look also to the do { ... } command since gnuplot 4.6 as it is very powerful:

do for [t=0:50] {
  outfile = sprintf('animation/bessel%03.0f.png',t)
  set output outfile
  splot u*sin(v),u*cos(v),bessel(u,t/50.0) w pm3d ls 1
}

http://www.gnuplotting.org/gnuplot-4-6-do/

Try the -Force parameter:

New-Item -ItemType Directory -Force -Path C:\Path\That\May\Or\May\Not\Exist

You can use Test-Path -PathType Container to check first.

See the New-Item MSDN help article for more details.

if wanna specified nth highest,could use rank method.

To get the third highest, use

SELECT * FROM
(SELECT @rank := @rank + 1 AS rank, salary
FROM   tbl,(SELECT @rank := 0) r 
order by salary desc ) m
WHERE rank=3

In your main.ts file bootstrap after DOMContentLoaded so angular will load when DOM is fully loaded.

import { enableProdMode } from '@angular/core';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';

import { AppModule } from './app/app.module';
import { environment } from './environments/environment';

if (environment.production) {
  enableProdMode();
}



document.addEventListener('DOMContentLoaded', () => {
  platformBrowserDynamic().bootstrapModule(AppModule)
  .catch(err => console.log(err));
});

I always use QString::setNum().

int i = 10;
double d = 10.75;
QString str;
str.setNum(i);
str.setNum(d);

setNum() is overloaded in many ways. See QString class reference.

You could add this little snippet of code to add a nice "…" to the ending of the line if the content is to large to fit on one line:

li {
  overflow: hidden; 
  text-overflow: ellipsis;
  white-space: nowrap;
}

It's best if you judge on your own,

1) Sublime works on Mac & Linux that may be its plus point, with VI mode that makes things easily searchable for the VI lover(UNIX & Linux).

http://text-editors.findthebest.com/compare/9-45/Notepad-vs-Sublime-Text

This Link is no more working so please watch this video for similar details Video

Initial observation revealed that everything else should work fine and almost similar;(with help of available plugins in notepad++)

Some Variation: Some user find plugins useful for PHP coders on that

http://codelikeapoem.com/2013/01/goodbye-notepad-hellooooo-sublime-text.html

although, there are many plugins for Notepad Plus Plus ..

I am not sure of your requirements, nor I am promoter of either of these editors :)

So, judge on basis of your requirements, this should satisfy you query...

Yes we can add that both are evolving and changing fast..

The article "Why is my list black? An Android optimization" in the Android Developers Blog has a thorough explanation of why the list background turns black when scrolling. Simple answer: set cacheColorHint on your list to transparent (#00000000).

With RxJS 5.5+, the catch operator is now deprecated. You should now use the catchError operator in conjunction with pipe.

RxJS v5.5.2 is the default dependency version for Angular 5.

For each RxJS Operator you import, including catchError you should now import from 'rxjs/operators' and use the pipe operator.

Example of catching error for an Http request Observable

import { Observable } from 'rxjs';
import { catchError } from 'rxjs/operators';
...

export class ExampleClass {
  constructor(private http: HttpClient) {
    this.http.request(method, url, options).pipe(
      catchError((err: HttpErrorResponse) => {
        ...
      }
    )
  }
  ...
}

Notice here that catch is replaced with catchError and the pipe operator is used to compose the operators in similar manner to what you're used to with dot-chaining.

See the rxjs documentation on pipable (previously known as lettable) operators for more info.

Firstly, I am not an authority on WebClient vs. HttpClient, specifically. Secondly, from your comments above, it seems to suggest that WebClient is Sync ONLY whereas HttpClient is both.

I did a quick performance test to find how WebClient (Sync calls), HttpClient (Sync and Async) perform. and here are the results.

I see that as a huge difference when thinking for future, i.e. long running processes, responsive GUI, etc. (add to the benefit you suggest by framework 4.5 - which in my actual experience is hugely faster on IIS)

In simple class declare context and get data from file from res folder

public class FileData
{
      private Context context;

        public FileData(Context current){
            this.context = current;
        }
        void  getData()
        {
        InputStream in = context.getResources().openRawResource(R.raw.file11);
        BufferedReader reader = new BufferedReader(new InputStreamReader(in));
        //write stuff to get Data

        }
}

In the activity class declare like this

public class MainActivity extends AppCompatActivity 
{
 protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);
        FileData fileData=new FileData(this);
     }

}

Adding to SimonHawesome's excellent answer. I've made an succinct version which utilizes some of the new typescript features. I realize that SimonHawesome's version is intentionally verbose as to explain the underlying details. I've also added an early-out check so that the pipe works for falsy values. E.g., if the map is null.

Note that using a iterator transform (as done here) can be more efficient since we do not need to allocate memory for a temporary array (as done in some of the other answers).

import {Pipe, PipeTransform} from '@angular/core';

@Pipe({
    name: 'mapToIterable'
})
export class MapToIterable implements PipeTransform {
    transform(map: { [key: string]: any }, ...parameters: any[]) {
        if (!map)
            return undefined;
        return Object.keys(map)
            .map((key) => ({ 'key': key, 'value': map[key] }));
    }
}

Once you convert your data to a pandas dataframe (df),

import statsmodels.formula.api as smf
lm = smf.ols(formula='y ~ x1 + x2 + x3 + x4 + x5 + x6 + x7', data=df).fit()
print(lm.params)

The intercept term is included by default.

See this notebook for more examples.

As already said, the easiest way is to use querystring.

But if you cannot, because of security reason, you should consider using cookies.

If you read the help file for ?boxplot, you'll see there is a names= parameter.

     boxplot(apple, banana, watermelon, names=c("apple","banana","watermelon"))

string = 'string%d' % (i,)

I got the same problem, and I fixed this issue by this solution on a Mac. I hope it helps someone. It's because the system doesn't know about the newer version of JDK, and it still points to the old JDK.

you can do this :

private void setRowNumber(DataGridView dgv)
{
    foreach (DataGridViewRow row in dgv.Rows)
    {
        row.HeaderCell.Value = row.Index + 1;
    }

    dgv.AutoResizeRowHeadersWidth(DataGridViewRowHeadersWidthSizeMode.AutoSizeToAllHeaders);

}

Xcode 5.1 no longer provides command line tools in the Preferences section. You now go to https://developer.apple.com/downloads/index.action, and select the command line tools version for your OS X release. The installer puts them in /usr/bin.

The following cites the C11 standard (final draft).

6.3.1.2: When any scalar value is converted to _Bool, the result is 0 if the value compares equal to 0; otherwise, the result is 1.

bool (mapped by stdbool.h to the internal name _Bool for C) itself is an unsigned integer type:

... The type _Bool and the unsigned integer types that correspond to the standard signed integer types are the standard unsigned integer types.

According to 6.2.5p2:

An object declared as type _Bool is large enough to store the values 0 and 1.

AFAIK these definitions are semantically identical to C++ - with the minor difference of the built-in(!) names. bool for C++ and _Bool for C.

Note that C does not use the term rvalues as C++ does. However, in C pointers are scalars, so assigning a pointer to a _Bool behaves as in C++.

Such an old question, but maybe I can propose an alternative solution.

You can use the install programme to copy your file and create the destination path "on the fly".

install -D file /path/to/copy/file/to/is/very/deep/there/file

There are some aspects to take in consideration, though:

1. you need to specify also the destination file name, not only the destination path
2. the destination file will be executable (at least, as far as I saw from my tests)

You can easily amend the #2 by adding the -m option to set permissions on the destination file (example: -m 664 will create the destination file with permissions rw-rw-r--, just like creating a new file with touch).

And here it is the shameless link to the answer I was inspired by =)

Here's an example in C# (cause that's what I was searching for). I needed to split a 23 GB csv-file with around 175 million lines to be able to look at the files. I split it into files of one million rows each. This code did it in about 5 minutes on my machine:

var list = new List<string>();
var fileSuffix = 0;

using (var file = File.OpenRead(@"D:\Temp\file.csv"))
using (var reader = new StreamReader(file))
{
    while (!reader.EndOfStream)
    {
        list.Add(reader.ReadLine());

        if (list.Count >= 1000000)
        {
            File.WriteAllLines(@"D:\Temp\split" + (++fileSuffix) + ".csv", list);
            list = new List<string>();
        }
    }
}

File.WriteAllLines(@"D:\Temp\split" + (++fileSuffix) + ".csv", list);

is there a possibility that casting a double created via Math.round() will still result in a truncated down number

No, round() will always round your double to the correct value, and then, it will be cast to an long which will truncate any decimal places. But after rounding, there will not be any fractional parts remaining.

Here are the docs from Math.round(double):

Returns the closest long to the argument. The result is rounded to an integer by adding 1/2, taking the floor of the result, and casting the result to type long. In other words, the result is equal to the value of the expression:

(long)Math.floor(a + 0.5d)

With Git 2.30 (Q1 2021), there will be a new merge strategy: ORT ("Ostensibly Recursive's Twin").

git merge -s ort

This comes from this thread from Elijah Newren:

For now, I'm calling it "Ostensibly Recursive's Twin", or "ort" for short. > At first, people shouldn't be able to notice any difference between it and the current recursive strategy, other than the fact that I think I can make it a bit faster (especially for big repos).

But it should allow me to fix some (admittedly corner case) bugs that are harder to handle in the current design, and I think that a merge that doesn't touch $GIT_WORK_TREE or $GIT_INDEX_FILE will allow for some fun new features.
That's the hope anyway.

Problem:

In the ideal world, we should:

• ask unpack_trees() to do "read-tree -m" without "-u";

• do all the merge-recursive computations in-core and prepare the resulting index, while keeping the current index intact;

• compare the current in-core index and the resulting in-core index, and notice the paths that need to be added, updated or removed in the working tree, and ensure that there is no loss of information when the change is reflected to the working tree;
  E.g. the result wants to create a file where the working tree currently has a directory with non-expendable contents in it, the result wants to remove a file where the working tree file has local modification, etc.;
  And then finally

• carry out the working tree update to make it match what the resulting in-core index says it should look like.

Result:

See commit 14c4586 (02 Nov 2020), commit fe1a21d (29 Oct 2020), and commit 47b1e89, commit 17e5574 (27 Oct 2020) by Elijah Newren (newren).
^{(Merged by Junio C Hamano -- gitster -- in commit a1f9595, 18 Nov 2020)}

merge-ort: barebones API of new merge strategy with empty implementation

^{Signed-off-by: Elijah Newren}

This is the beginning of a new merge strategy.

While there are some API differences, and the implementation has some differences in behavior, it is essentially meant as an eventual drop-in replacement for merge-recursive.c.

However, it is being built to exist side-by-side with merge-recursive so that we have plenty of time to find out how those differences pan out in the real world while people can still fall back to merge-recursive.
(Also, I intend to avoid modifying merge-recursive during this process, to keep it stable.)

The primary difference noticable here is that the updating of the working tree and index is not done simultaneously with the merge algorithm, but is a separate post-processing step.
The new API is designed so that one can do repeated merges (e.g. during a rebase or cherry-pick) and only update the index and working tree one time at the end instead of updating it with every intermediate result.

Also, one can perform a merge between two branches, neither of which match the index or the working tree, without clobbering the index or working tree.

And:

See commit 848a856, commit fd15863, commit 23bef2e, commit c8c35f6, commit c12d1f2, commit 727c75b, commit 489c85f, commit ef52778, commit f06481f (26 Oct 2020) by Elijah Newren (newren).
^{(Merged by Junio C Hamano -- gitster -- in commit 66c62ea, 18 Nov 2020)}

t6423, t6436: note improved ort handling with dirty files

^{Signed-off-by: Elijah Newren}

The "recursive" backend relies on unpack_trees() to check if unstaged changes would be overwritten by a merge, but unpack_trees() does not understand renames -- and once it returns, it has already written many updates to the working tree and index.
As such, "recursive" had to do a special 4-way merge where it would need to also treat the working copy as an extra source of differences that we had to carefully avoid overwriting and resulting in moving files to new locations to avoid conflicts.

The "ort" backend, by contrast, does the complete merge inmemory, and only updates the index and working copy as a post-processing step.
If there are dirty files in the way, it can simply abort the merge.

t6423: expect improved conflict markers labels in the ort backend

^{Signed-off-by: Elijah Newren}

Conflict markers carry an extra annotation of the form REF-OR-COMMIT:FILENAME to help distinguish where the content is coming from, with the :FILENAME piece being left off if it is the same for both sides of history (thus only renames with content conflicts carry that part of the annotation).

However, there were cases where the :FILENAME annotation was accidentally left off, due to merge-recursive's every-codepath-needs-a-copy-of-all-special-case-code format.

t6404, t6423: expect improved rename/delete handling in ort backend

^{Signed-off-by: Elijah Newren}

When a file is renamed and has content conflicts, merge-recursive does not have some stages for the old filename and some stages for the new filename in the index; instead it copies all the stages corresponding to the old filename over to the corresponding locations for the new filename, so that there are three higher order stages all corresponding to the new filename.

Doing things this way makes it easier for the user to access the different versions and to resolve the conflict (no need to manually 'git rm '^(man) the old version as well as 'git add'^(man) the new one).

rename/deletes should be handled similarly -- there should be two stages for the renamed file rather than just one.
We do not want to destabilize merge-recursive right now, so instead update relevant tests to have different expectations depending on whether the "recursive" or "ort" merge strategies are in use.

With Git 2.30 (Q1 2021), Preparation for a new merge strategy.

See commit 848a856, commit fd15863, commit 23bef2e, commit c8c35f6, commit c12d1f2, commit 727c75b, commit 489c85f, commit ef52778, commit f06481f (26 Oct 2020) by Elijah Newren (newren).
^{(Merged by Junio C Hamano -- gitster -- in commit 66c62ea, 18 Nov 2020)}

merge tests: expect improved directory/file conflict handling in ort

^{Signed-off-by: Elijah Newren}

merge-recursive.c is built on the idea of running unpack_trees() and then "doing minor touch-ups" to get the result.
Unfortunately, unpack_trees() was run in an update-as-it-goes mode, leading merge-recursive.c to follow suit and end up with an immediate evaluation and fix-it-up-as-you-go design.

Some things like directory/file conflicts are not well representable in the index data structure, and required special extra code to handle.
But then when it was discovered that rename/delete conflicts could also be involved in directory/file conflicts, the special directory/file conflict handling code had to be copied to the rename/delete codepath.
...and then it had to be copied for modify/delete, and for rename/rename(1to2) conflicts, ...and yet it still missed some.
Further, when it was discovered that there were also file/submodule conflicts and submodule/directory conflicts, we needed to copy the special submodule handling code to all the special cases throughout the codebase.

And then it was discovered that our handling of directory/file conflicts was suboptimal because it would create untracked files to store the contents of the conflicting file, which would not be cleaned up if someone were to run a 'git merge --abort'^(man) or 'git rebase --abort'^(man).

It was also difficult or scary to try to add or remove the index entries corresponding to these files given the directory/file conflict in the index.
But changing merge-recursive.c to handle these correctly was a royal pain because there were so many sites in the code with similar but not identical code for handling directory/file/submodule conflicts that would all need to be updated.

I have worked hard to push all directory/file/submodule conflict handling in merge-ort through a single codepath, and avoid creating untracked files for storing tracked content (it does record things at alternate paths, but makes sure they have higher-order stages in the index).

With Git 2.31 (Q1 2021), the merge backend "done right" starts to emerge.
Example:

See commit 6d37ca2 (11 Nov 2020) by Junio C Hamano (gitster).
See commit 89422d2, commit ef2b369, commit 70912f6, commit 6681ce5, commit 9fefce6, commit bb470f4, commit ee4012d, commit a9945bb, commit 8adffaa, commit 6a02dd9, commit 291f29c, commit 98bf984, commit 34e557a, commit 885f006, commit d2bc199, commit 0c0d705, commit c801717, commit e4171b1, commit 231e2dd, commit 5b59c3d (13 Dec 2020) by Elijah Newren (newren).
^{(Merged by Junio C Hamano -- gitster -- in commit f9d29da, 06 Jan 2021)}

merge-ort: add implementation of record_conflicted_index_entries()

^{Signed-off-by: Elijah Newren}

After checkout(), the working tree has the appropriate contents, and the index matches the working copy.
That means that all unmodified and cleanly merged files have correct index entries, but conflicted entries need to be updated.

We do this by looping over the conflicted entries, marking the existing index entry for the path with CE_REMOVE, adding new higher order staged for the path at the end of the index (ignoring normal index sort order), and then at the end of the loop removing the CE_REMOVED-marked cache entries and sorting the index.

With Git 2.31 (Q1 2021), rename detection is added to the "ORT" merge strategy.

See commit 6fcccbd, commit f1665e6, commit 35e47e3, commit 2e91ddd, commit 53e88a0, commit af1e56c (15 Dec 2020), and commit c2d267d, commit 965a7bc, commit f39d05c, commit e1a124e, commit 864075e (14 Dec 2020) by Elijah Newren (newren).
^{(Merged by Junio C Hamano -- gitster -- in commit 2856089, 25 Jan 2021)}

Example:

merge-ort: add implementation of normal rename handling

^{Signed-off-by: Elijah Newren}

Implement handling of normal renames.
This code replaces the following from merge-recurisve.c:

• the code relevant to RENAME_NORMAL in process_renames()
• the RENAME_NORMAL case of process_entry()

Also, there is some shared code from merge-recursive.c for multiple different rename cases which we will no longer need for this case (or other rename cases):

• handle_rename_normal()
• setup_rename_conflict_info()

The consolidation of four separate codepaths into one is made possible by a change in design: process_renames() tweaks the conflict_info entries within opt->priv->paths such that process_entry() can then handle all the non-rename conflict types (directory/file, modify/delete, etc.) orthogonally.

This means we're much less likely to miss special implementation of some kind of combination of conflict types (see commits brought in by 66c62ea ("Merge branch 'en/merge-tests'", 2020-11-18, Git v2.30.0-rc0 -- merge listed in batch #6), especially commit ef52778 ("merge tests: expect improved directory/file conflict handling in ort", 2020-10-26, Git v2.30.0-rc0 -- merge listed in batch #6) for more details).

That, together with letting worktree/index updating be handled orthogonally in the merge_switch_to_result() function, dramatically simplifies the code for various special rename cases.

(To be fair, the code for handling normal renames wasn't all that complicated beforehand, but it's still much simpler now.)

And, still with Git 2.31 (Q1 2021), With Git 2.31 (Q1 2021), oRT merge strategy learns more support for merge conflicts.

See commit 4ef88fc, commit 4204cd5, commit 70f19c7, commit c73cda7, commit f591c47, commit 62fdec1, commit 991bbdc, commit 5a1a1e8, commit 23366d2, commit 0ccfa4e (01 Jan 2021) by Elijah Newren (newren).
^{(Merged by Junio C Hamano -- gitster -- in commit b65b9ff, 05 Feb 2021)}

merge-ort: add handling for different types of files at same path

^{Signed-off-by: Elijah Newren}

Add some handling that explicitly considers collisions of the following types:

• file/submodule
• file/symlink
• submodule/symlink> Leaving them as conflicts at the same path are hard for users to resolve, so move one or both of them aside so that they each get their own path.

Note that in the case of recursive handling (i.e.
call_depth > 0), we can just use the merge base of the two merge bases as the merge result much like we do with modify/delete conflicts, binary files, conflicting submodule values, and so on.

It appears the default setting for Adobe Reader X is for the toolbars not to be shown by default unless they are explicitly turned on by the user. And even when I turn them back on during a session, they don't show up automatically next time. As such, I suspect you have a preference set contrary to the default.

The state you desire, with the top and left toolbars not shown, is called "Read Mode". If you right-click on the document itself, and then click "Page Display Preferences" in the context menu that is shown, you'll be presented with the Adobe Reader Preferences dialog. (This is the same dialog you can access by opening the Adobe Reader application, and selecting "Preferences" from the "Edit" menu.) In the list shown in the left-hand column of the Preferences dialog, select "Internet". Finally, on the right, ensure that you have the "Display in Read Mode by default" box checked:

You can also turn off the toolbars temporarily by clicking the button at the right of the top toolbar that depicts arrows pointing to opposing corners:

Finally, if you have "Display in Read Mode by default" turned off, but want to instruct the page you're loading not to display the toolbars (i.e., override the user's current preferences), you can append the following to the URL:

#toolbar=0&navpanes=0

So, for example, the following code will disable both the top toolbar (called "toolbar") and the left-hand toolbar (called "navpane"). However, if the user knows the keyboard combination (F8, and perhaps other methods as well), they will still be able to turn them back on.

string url = @"http://www.domain.com/file.pdf#toolbar=0&navpanes=0";
this._WebBrowser.Navigate(url);

You can read more about the parameters that are available for customizing the way PDF files open here on Adobe's developer website.

As explained here, in the context of main both return and exit do the same thing

Q: Why do we need to return or exit?

A: To indicate execution status.

In your example even if you didnt have return or exit statements the code would run fine (Assuming everything else is syntactically,etc-ally correct. Also, if (and it should be) main returns int you need that return 0 at the end).

But, after execution you don't have a way to find out if your code worked as expected. You can use the return code of the program (In *nix environments , using $?) which gives you the code (as set by exit or return) . Since you set these codes yourself you understand at which point the code reached before terminating.

You can write return 123 where 123 indicates success in the post execution checks.

Usually, in *nix environments 0 is taken as success and non-zero codes as failures.

<?php

$string = 'foo';

if (preg_match('/[\'^£$%&*()}{@#~?><>,|=_+¬-]/', $string))
{
    // one or more of the 'special characters' found in $string
}

You have to call close() on the GZIPOutputStream before you attempt to read it. The final bytes of the file will only be written when the file is actually closed. (This is irrespective of any explicit buffering in the output stack. The stream only knows to compress and write the last bytes when you tell it to close. A flush() probably won't help ... though calling finish() instead of close() should work. Look at the javadocs.)

Here's the correct code (in Java);

package test;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;

public class GZipTest {

    public static void main(String[] args) throws
                FileNotFoundException, IOException {
        String name = "/tmp/test";
        GZIPOutputStream gz = new GZIPOutputStream(new FileOutputStream(name));
        gz.write(10);
        gz.close();       // Remove this to reproduce the reported bug
        System.out.println(new GZIPInputStream(new FileInputStream(name)).read());
    }
}

(I've not implemented resource management or exception handling / reporting properly as they are not relevant to the purpose of this code. Don't treat this as an example of "good code".)

More compact version working with spaces and newlines in the file name:

find . -iname '*.txt' -exec sh -c 'echo "{}" ; ls -l "{}"' \;

JObject implements IDictionary, so you can use it that way. For ex,

var cycleJson  = JObject.Parse(@"{""name"":""john""}");

//add surname
cycleJson["surname"] = "doe";

//add a complex object
cycleJson["complexObj"] = JObject.FromObject(new { id = 1, name = "test" });

So the final json will be

{
  "name": "john",
  "surname": "doe",
  "complexObj": {
    "id": 1,
    "name": "test"
  }
}

You can also use dynamic keyword

dynamic cycleJson  = JObject.Parse(@"{""name"":""john""}");
cycleJson.surname = "doe";
cycleJson.complexObj = JObject.FromObject(new { id = 1, name = "test" });

Please note that both the HTML5 specification of W3C and WhatWG standardize

<link rel="icon" href="/favicon.ico">

Note the value of the "rel" attribute!

The value shortcut icon for the rel attribute is a very old Internet Explorer specific extension and deprecated.

So please consider not using it any more and updating your files so they are standards compliant and are displayed correctly in all browsers.

You might also want to take a look at this great post: rel="shortcut icon" considered harmful

driver.find_element_by_id("some_id").size() is class method.

What we need is :

driver.find_element_by_id("some_id").size which is dictionary so :

if driver.find_element_by_id("some_id").size['width'] != 0 : print 'button exist'

You can use DateTime

import org.joda.time.DateTime

Option 1 : with yyyyMMddHHmmss

DateTime.now().toString("yyyyMMddHHmmss")

Will give 20190205214430

Option 2 : yyyy-dd-M--HH-mm-ss

   DateTime.now().toString("yyyy-dd-M--HH-mm-ss")

will give 2019-05-2--21-43-32

I had the same problem with a client of my company, the problem was that the driver sqljdbc4.jar, tries a convertion of character between the database and the driver. Each time that it did a request to the database, now you can imagine 650 connections concurrently, this did my sistem very very slow, for avoid this situation i add at the String of connection the following parameter:

 SendStringParametersAsUnicode=false, then te connection must be something like url="jdbc:sqlserver://IP:PORT;DatabaseName=DBNAME;SendStringParametersAsUnicode=false"

After that, the system is very very fast, as the users are very happy with the change, i hope my input be of same.

How to properly ignore Exceptions?

There are several ways of doing this.

However, the choice of example has a simple solution that does not cover the general case.

Specific to the example:

Instead of

try:
    shutil.rmtree(path)
except:
    pass

Do this:

shutil.rmtree(path, ignore_errors=True)

This is an argument specific to shutil.rmtree. You can see the help on it by doing the following, and you'll see it can also allow for functionality on errors as well.

>>> import shutil
>>> help(shutil.rmtree)

Since this only covers the narrow case of the example, I'll further demonstrate how to handle this if those keyword arguments didn't exist.

General approach

Since the above only covers the narrow case of the example, I'll further demonstrate how to handle this if those keyword arguments didn't exist.

New in Python 3.4:

You can import the suppress context manager:

from contextlib import suppress

But only suppress the most specific exception:

with suppress(FileNotFoundError):
    shutil.rmtree(path)

You will silently ignore a FileNotFoundError:

>>> with suppress(FileNotFoundError):
...     shutil.rmtree('bajkjbkdlsjfljsf')
... 
>>> 

From the docs:

As with any other mechanism that completely suppresses exceptions, this context manager should be used only to cover very specific errors where silently continuing with program execution is known to be the right thing to do.

Note that suppress and FileNotFoundError are only available in Python 3.

If you want your code to work in Python 2 as well, see the next section:

Python 2 & 3:

When you just want to do a try/except without handling the exception, how do you do it in Python?

Is the following the right way to do it?

try :
    shutil.rmtree ( path )
except :
    pass

For Python 2 compatible code, pass is the correct way to have a statement that's a no-op. But when you do a bare except:, that's the same as doing except BaseException: which includes GeneratorExit, KeyboardInterrupt, and SystemExit, and in general, you don't want to catch those things.

In fact, you should be as specific in naming the exception as you can.

Here's part of the Python (2) exception hierarchy, and as you can see, if you catch more general Exceptions, you can hide problems you did not expect:

BaseException
 +-- SystemExit
 +-- KeyboardInterrupt
 +-- GeneratorExit
 +-- Exception
      +-- StopIteration
      +-- StandardError
      |    +-- BufferError
      |    +-- ArithmeticError
      |    |    +-- FloatingPointError
      |    |    +-- OverflowError
      |    |    +-- ZeroDivisionError
      |    +-- AssertionError
      |    +-- AttributeError
      |    +-- EnvironmentError
      |    |    +-- IOError
      |    |    +-- OSError
      |    |         +-- WindowsError (Windows)
      |    |         +-- VMSError (VMS)
      |    +-- EOFError
... and so on

You probably want to catch an OSError here, and maybe the exception you don't care about is if there is no directory.

We can get that specific error number from the errno library, and reraise if we don't have that:

import errno

try:
    shutil.rmtree(path)
except OSError as error:
    if error.errno == errno.ENOENT: # no such file or directory
        pass
    else: # we had an OSError we didn't expect, so reraise it
        raise 

Note, a bare raise raises the original exception, which is probably what you want in this case. Written more concisely, as we don't really need to explicitly pass with code in the exception handling:

try:
    shutil.rmtree(path)
except OSError as error:
    if error.errno != errno.ENOENT: # no such file or directory
        raise 

Since Django 2.x, on_delete is required.

Django Documentation

Deprecated since version 1.9: on_delete will become a required argument in Django 2.0. In older versions it defaults to CASCADE.

All I'm getting from that is _internal

I get the route name from inside a controller with $this->getRequest()->get('_route'). Even the code tuxedo25 suggested returns _internal

This code is executed in what was called a 'Component' in Symfony 1.X; Not a page's controller but part of a page which needs some logic.

The equivalent code in Symfony 1.X is: sfContext::getInstance()->getRouting()->getCurrentRouteName();

You can use the parseInt method for no rounding. Be careful with user input due to the 0x (hex) and 0 (octal) prefix options.

var intValue = parseInt(floatValue, 10);

This is just used for convenience with IF EXISTS(). Otherwise you can go with

select * from [table_name]

Image In the case of 'IF EXISTS', we just need know that any row with specified condition exists or not doesn't matter what is content of row.

select 1 from Users

above example code, returns no. of rows equals to no. of users with 1 in single column

The Pythonic way to do this:

str(number).rjust(string_width, fill_char)

This way, the original string is returned unchanged if its length is greater than string_width. Example:

a = [1, 10, 100]
for num in a:
    print str(num).rjust(2, '0')

Results:

01
10
100

For all practical purposes, and with no import at all, one can use:

x = float("inf")

More detail on this related question: How can I represent an infinite number in Python?

Some people have commented about readability, saying "Oh it doesn't help readability that much, who cares?"

Suppose you need a check before the main code:

if precondition_fails(message): continue

''' main code here '''

Note you can do this after the main code was written without changing that code in anyway. If you diff the code, only the added line with "continue" will be highlighted since there are no spacing changes to the main code.

Imagine if you have to do a breakfix of production code, which turns out to simply be adding a line with continue. It's easy to see that's the only change when you review the code. If you start wrapping the main code in if/else, diff will highlight the newly indented code, unless you ignore spacing changes, which is dangerous particularly in Python. I think unless you've been in the situation where you have to roll out code on short notice, you might not fully appreciate this.

You can try with Angular-Tree-DnD sample with Angular-Ui-Tree, but i edited, compatibility with table, grid, list.

• Able Drag & Drop
• Extended function directive for list (next, prev, getChildren,...)
• Filter data.
• OrderBy (ver)

For me, it worked:

button.setCompoundDrawablesWithIntrinsicBounds(com.example.project1.R.drawable.ic_launcher, 0, 0, 0);

Nothing above worked, this is what worked for me:

ftype Python.File=C:\Path\to\python.exe "%1" %*

This command should be run in Command prompt launched as administrator

Warning: even if the path in this command is set to python35, if you have python36 installed it's going to set the default to python36. To prevent this, you can temporarily change the folder name from Python36 to xxPython36, run the command and then remove the change to the Python 36 folder.

mysql_connect("localhost", "root", "") or die(mysql_error()) ;
mysql_select_db("altabotanikk") or die(mysql_error()) ;

These are deprecated use the following..

 // Connects to your Database
            $link = mysqli_connect("localhost", "root", "", "");

and to insert data use the following

 $sql = "INSERT INTO  Table-Name (Column-Name)
VALUES ('$filename')" ;

To answer your question with a working example:

<script type="text/javascript">
function DownloadJSON2CSV(objArray)
{
    var array = typeof objArray != 'object' ? JSON.parse(objArray) : objArray;

    var str = '';

    for (var i = 0; i < array.length; i++) {
        var line = new Array();

        for (var index in array[i]) {
           line.push('"' + array[i][index] + '"');
        }

        str += line.join(';');
        str += '\r\n';
    }
    window.open( "data:text/csv;charset=utf-8," + encodeURIComponent(str));
}
</script>

Depends on what you run in that thread. If that's your code, then you can implement a stop condition (see other answers).

However, if what you want is to run someone else's code, then you should fork and start a process. Like this:

import multiprocessing
proc = multiprocessing.Process(target=your_proc_function, args=())
proc.start()

now, whenever you want to stop that process, send it a SIGTERM like this:

proc.terminate()
proc.join()

And it's not slow: fractions of a second. Enjoy :)

commit () records these changes in the database. flush () is always called as part of the commit () (1) call. When you use a Session object to query a database, the query returns results from both the database and the reddened parts of the unrecorded transaction it is performing.

Scala is supported. See example.

Support for other languages is problematic:

7) Something like the dx tool can be forced into the phone, so that Java code could in principle continue to generate bytecodes, yet have them be translated into a VM-runnable form. But, at present, Java code cannot be generated on the fly. This means Dalvik cannot run dynamic languages (JRuby, Jython, Groovy). Yet. (Perhaps the dex format needs a detuned variant which can be easily generated from bytecodes.)

If you are using Docker toolkit on window 10 home you will need to access the webpage through docker-machine ip command. It is generally 192.168.99.100:

It is assumed that you are running with publish command like below.

docker run -it -p 8080:8080 demo

With Window 10 pro version you can access with localhost or corresponding loopback 127.0.0.1:8080 etc (Tomcat or whatever you wish). This is because you don't have a virtual box there and docker is running directly on Window Hyper V and loopback is directly accessible.

Verify the hosts file in window for any digression. It should have 127.0.0.1 mapped to localhost

if you want only the background-image to be affected, you can use a linear gradient to do that, just like this:

  background: linear-gradient(rgba(0, 0, 0, .5), rgba(0, 0, 0, .5)), url(IMAGE_URL);

If you want it darker, make the alpha value higher, else you want it lighter, make alpha lower

All given answers are good, if i might add something: To directly use string's methods and properties (e.g. ToLower) you can't write:

(string)o.ToLower(); // won't compile

you can only write:

((string)o).ToLower();

but you could write instead:

(o as string).ToLower();

The as option is more readable (at least to my opinion).

I'm surprised Object.assign hasn't been mentioned.

let cloned = Object.assign({}, source);

If available (e.g. Babel), you can use the object spread operator:

let cloned = { ... source };

You need to put your main code on the OnStart method.

This other SO answer of mine might help.

You will need to put some code to enable debugging within visual-studio while maintaining your application valid as a windows-service. This other SO thread cover the issue of debugging a windows-service.

EDIT:

Please see also the documentation available here for the OnStart method at the MSDN where one can read this:

Do not use the constructor to perform processing that should be in OnStart. Use OnStart to handle all initialization of your service. The constructor is called when the application's executable runs, not when the service runs. The executable runs before OnStart. When you continue, for example, the constructor is not called again because the SCM already holds the object in memory. If OnStop releases resources allocated in the constructor rather than in OnStart, the needed resources would not be created again the second time the service is called.

Here is another way to change the text of a label using jQuery:

<script>
  $("#lbltipAddedComment").text("your tip has been submitted!");
</script>

Check the JsFiddle example

Use bind function instead. Make it more friendly.

Example:

var clickHandler = "click";

if('ontouchstart' in document.documentElement){
    clickHandler = "touchstart";
}

$(".button").bind(clickHandler,function(){
    alert('Visible on touch and non-touch enabled devices');
});

You can use the following solution to get a JSON key and value in JavaScript:

var dt = JSON.stringify(data).replace('[', '').replace(']', '');
if (dt) {
  var result = jQuery.parseJSON(dt);
  var val = result.YOUR_OBJECT_NAME;
}

SELECT *,concat_ws(' ',first_name,last_name) AS whole_name FROM users HAVING whole_name LIKE '%$search_term%'

...is probably what you want.

The hosted network won't start if there are other active wifi adapters.

Disable the others whilst you're starting the hosted network.

Keep it simple - as you said, a flat file is sufficient. Use a flat file.

This is assuming that you have analyzed your requirements correctly. I would skip the serializing as XML step, overkill for a simple dictionary. Same thing for a database.

For small scripts an optional way to make it readable is to use a variable like this:

awk -v fmt="'%s'\n" '{printf fmt, $1}'

I found it conveninet in a case where I had to produce many times the single-quote character in the output and the \047 were making it totally unreadable

I've uploaded my simple but fast implementation of a Guid class for ObjC here: obj-c GUID

Guid* guid = [Guid randomGuid];
NSLog("%@", guid.description);

It can parse to and from various string formats as well.

In fact return (i++) will only return 10.

The ++ and -- operators can be placed before or after the variable, with different effects. If they are before, then they will be processed and returned and essentially treated just like (i-1) or (i+1), but if you place the ++ or -- after the i, then the return is essentailly

return i;
i + 1;

So it will return 10 and never increment it.

Months are zero-based in Calendar. So 12 is interpreted as december + 1 month. Use

c.set(year, month - 1, day, 0, 0);  

I have faced same problem and It will resolve this issue in all android versions

private void setCookie() {
    try {
        CookieSyncManager.createInstance(context);
        CookieManager cookieManager = CookieManager.getInstance();
        cookieManager.setAcceptCookie(true);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            cookieManager.setCookie(Constant.BASE_URL, getCookie(), value -> {
                String cookie = cookieManager.getCookie(Constant.BASE_URL);
                CookieManager.getInstance().flush();
                CustomLog.d("cookie", "cookie ------>" + cookie);
                setupWebView();
            });
        } else {
            cookieManager.setCookie(webUrl, getCookie());
            new Handler().postDelayed(this::setupWebView, 700);
            CookieSyncManager.getInstance().sync();
        }

    } catch (Exception e) {
        CustomLog.e(e);
    }
}

<div id='myInputF2'> YES ITS DIV TEXT TO COPY  </div>

<script>

    function myFunctionF2()  {
        str = document.getElementById('myInputF2').innerHTML;
        const el = document.createElement('textarea');
        el.value = str;
        document.body.appendChild(el);
        el.select();
        document.execCommand('copy');
        document.body.removeChild(el);
        alert('Copied the text:' + el.value);
    };
</script>

more info: https://hackernoon.com/copying-text-to-clipboard-with-javascript-df4d4988697f

Things can get quite messy when you have a complicated view hierarchy, like having multiple navigation controllers and/or tab view controllers.

This implementation puts it on the individual view controllers to set when they would like to lock orientations, instead of relying on the App Delegate to find them by iterating through subviews.

Swift 3, 4, 5

In AppDelegate:

/// set orientations you want to be allowed in this property by default
var orientationLock = UIInterfaceOrientationMask.all

func application(_ application: UIApplication, supportedInterfaceOrientationsFor window: UIWindow?) -> UIInterfaceOrientationMask {
        return self.orientationLock
}

In some other global struct or helper class, here I created AppUtility:

struct AppUtility {

    static func lockOrientation(_ orientation: UIInterfaceOrientationMask) {
    
        if let delegate = UIApplication.shared.delegate as? AppDelegate {
            delegate.orientationLock = orientation
        }
    }

    /// OPTIONAL Added method to adjust lock and rotate to the desired orientation
    static func lockOrientation(_ orientation: UIInterfaceOrientationMask, andRotateTo rotateOrientation:UIInterfaceOrientation) {
   
        self.lockOrientation(orientation)
    
        UIDevice.current.setValue(rotateOrientation.rawValue, forKey: "orientation")
        UINavigationController.attemptRotationToDeviceOrientation()
    }

}

Then in the desired ViewController you want to lock orientations:

 override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    
    AppUtility.lockOrientation(.portrait)
    // Or to rotate and lock
    // AppUtility.lockOrientation(.portrait, andRotateTo: .portrait)
    
}

override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)
    
    // Don't forget to reset when view is being removed
    AppUtility.lockOrientation(.all)
}

If iPad or Universal App

Make sure that "Requires full screen" is checked in Target Settings -> General -> Deployment Info. supportedInterfaceOrientationsFor delegate will not get called if that is not checked.

You should pass length into fwrite instead of sizeof(buffer).

Well I will put similar solution that is working fine for me.

 private void DataGrid1_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            try
            {
                if (DataGrid1.SelectedItem != null)
                {
                    if (DataGrid1.SelectedItem is YouCustomClass)
                    {
                        var row = (YouCustomClass)DataGrid1.SelectedItem;

                        if (row != null)
                        {
                            // Do something...

                            //  ButtonSaveData.IsEnabled = true;

                            //  LabelName.Content = row.Name;

                        }
                    }
                }
            }
            catch (Exception)
            {
            }
        }

Late to this one, but I just discovered an alternative way of doing it:

On your template,

<a (click)="navigateAssociates()">Associates</a> 

And on your component.ts, you can use serializeUrl to convert the route into a string, which can be used with window.open()

navigateAssociates() {
  const url = this.router.serializeUrl(
    this.router.createUrlTree(['/page1'])
  );

  window.open(url, '_blank');
}

You have to use the component's State to update component parameters such as Class Name if you want React to render your DOM correctly and efficiently.

UPDATE: I updated the example to toggle the Sidemenu on a button click. This is not necessary, but you can see how it would work. You might need to use "this.state" vs. "this.props" as I have shown. I'm used to working with Redux components.

constructor(props){
    super(props);
}

getInitialState(){
  return {"showHideSidenav":"hidden"};
}

render() {
    return (
        <div className="header">
            <i className="border hide-on-small-and-down"></i>
            <div className="container">
                <a ref="btn" onClick={this.toggleSidenav.bind(this)} href="#" className="btn-menu show-on-small"><i></i></a>
                <Menu className="menu hide-on-small-and-down"/>
                <Sidenav className={this.props.showHideSidenav}/>
            </div>
        </div>
    )
}

toggleSidenav() {
    var css = (this.props.showHideSidenav === "hidden") ? "show" : "hidden";
    this.setState({"showHideSidenav":css});
}

Now, when you toggle the state, the component will update and change the class name of the sidenav component. You can use CSS to show/hide the sidenav using the class names.

.hidden {
   display:none;
}
.show{
   display:block;
}

#include <cstdio>
#include <windows.h>
#include <tlhelp32.h>

int main( int, char *[] )
{
    PROCESSENTRY32 entry;
    entry.dwSize = sizeof(PROCESSENTRY32);

    HANDLE snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, NULL);

    if (Process32First(snapshot, &entry) == TRUE)
    {
        while (Process32Next(snapshot, &entry) == TRUE)
        {
            if (stricmp(entry.szExeFile, "target.exe") == 0)
            {  
                HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, entry.th32ProcessID);

                // Do stuff..

                CloseHandle(hProcess);
            }
        }
    }

    CloseHandle(snapshot);

    return 0;
}

Also, if you'd like to use PROCESS_ALL_ACCESS in OpenProcess, you could try this:

#include <cstdio>
#include <windows.h>
#include <tlhelp32.h>

void EnableDebugPriv()
{
    HANDLE hToken;
    LUID luid;
    TOKEN_PRIVILEGES tkp;

    OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);

    LookupPrivilegeValue(NULL, SE_DEBUG_NAME, &luid);

    tkp.PrivilegeCount = 1;
    tkp.Privileges[0].Luid = luid;
    tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;

    AdjustTokenPrivileges(hToken, false, &tkp, sizeof(tkp), NULL, NULL);

    CloseHandle(hToken); 
}

int main( int, char *[] )
{
    EnableDebugPriv();

    PROCESSENTRY32 entry;
    entry.dwSize = sizeof(PROCESSENTRY32);

    HANDLE snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, NULL);

    if (Process32First(snapshot, &entry) == TRUE)
    {
        while (Process32Next(snapshot, &entry) == TRUE)
        {
            if (stricmp(entry.szExeFile, "target.exe") == 0)
            {  
                HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, entry.th32ProcessID);

                // Do stuff..

                CloseHandle(hProcess);
            }
        }
    }

    CloseHandle(snapshot);

    return 0;
}

The ASPX code will look something like this:

 <asp:RadioButtonList ID="rblist1" runat="server">

    <asp:ListItem Text ="Item1" Value="1" />
    <asp:ListItem Text ="Item2" Value="2" />
    <asp:ListItem Text ="Item3" Value="3" />
    <asp:ListItem Text ="Item4" Value="4" />

    </asp:RadioButtonList>

    <asp:Button ID="btn1" runat="server" OnClick="Button1_Click" Text="select value" />

And the code behind:

protected void Button1_Click(object sender, EventArgs e)
        {
            string selectedValue = rblist1.SelectedValue;
            Response.Write(selectedValue);
        }

The solution is to NOT use height and width at all! Attach the inner box using top, left, right, bottom and then add margin.

.box {margin:8px; position:absolute; top:0; left:0; right:0; bottom:0}

<div class="box" style="background:black">_x000D_
  <div class="box" style="background:green">_x000D_
    <div class="box" style="background:lightblue">_x000D_
      This will show three nested boxes. Try resizing browser to see they remain nested properly._x000D_
    </div>_x000D_
  </div>_x000D_
</div>

As a reflex answer, I would recommend using rem, because it allows you to change the "zoom level" of the whole document at once, if necessary. In some cases, when you want the size to be relative to the parent element, then use em.

But rem support is spotty, IE8 needs a polyfill, and Webkit is exhibiting a bug. Moreover, sub-pixel calculation can cause things such as one pixel lines to sometimes disappear. The remedy is to code in pixels for such very small elements. That introduces even more complexity.

So, overall, ask yourself whether it's worth it - how important and likely it is that you change the "zoom level" of the whole document within CSS?

For some cases it's yes, for some cases it'll be no.

So, it depends on your needs, and you have to weight pros and cons, because using rem and em introduces some additional considerations in comparison to the "normal" pixel-based workflow.

Keep in mind that it's easy to switch (or rather convert) your CSS from px to rem (JavaScript is another story), because the following two blocks of CSS code would produce the same result:

html {
}

body {
  font-size:14px;
}

.someElement {
  width: 12px;
}

html {
  font-size:1px;
}

body {
  font-size:14rem;
}

.someElement {
  width: 12rem;
}

Since the problem is due to the difference in compilation and target machine specifications (x86 & x64) Follow the steps below:

1. Open the C++ project that you want to configure.
2. Choose the Configuration Manager button to open the Configuration Manager dialog box.
3. In the Active Solution Platform drop-down list, select the option to open the New Solution Platform dialog box.
4. In the Type or select the new platform drop-down list, select a 64-bit platform.

This solved my problem.

Here it is:

function call_func(input) {
    var evaled = eval('(' + input + ')');
    var newDiv = document.createElement('div');
    var id = evaled.id;
    var name = evaled.Student_name;
    var dob = evaled.student_dob;
    var html = '<b>ID:</b>';
    html += '<a href="/learningyii/index.php?r=student/view&amp; id=' + id + '">' + id + '</a>';
    html += '<br/>';
    html += '<b>Student Name:</b>';
    html += name;
    html += '<br/>';
    html += '<b>Student DOB:</b>';
    html += dob;
    html += '<br/>';
    newDiv.innerHTML = html;
    newDiv.setAttribute('class', 'view');
    $('#StudentGridViewId').find('.items').prepend(newDiv);
};

In Xcode 4.2

• Project Name/Edit Scheme/Diagnostics/
• Enable Zombie Objects check box
• You're done

Neither submit() nor click() is good enough. However, it works fine if you follow it with an ENTER key:

search_form = driver.find_element_by_id(elem_id)
search_form.send_keys(search_string)
search_form.click()
from selenium.webdriver.common.keys import Keys
search_form.send_keys(Keys.ENTER)

Tested on Mac 10.11, python 2.7.9, Selenium 2.53.5. This runs in parallel, meaning returns after entering the ENTER key, doesn't wait for page to load.

Try one of these other mime-types (from here: http://filext.com/file-extension/CSV )

• text/comma-separated-values
• text/csv
• application/csv
• application/excel
• application/vnd.ms-excel
• application/vnd.msexcel

Also, the mime-type might be case sensitive...

Converting from String to JSON Map:

Map<String,String> map = new HashMap<String,String>();

ObjectMapper mapper = new ObjectMapper();

map = mapper.readValue(string, HashMap.class);

You can use tell() method after reaching EOF by calling readlines() method, like this:

fp=open('file_name','r')
lines=fp.readlines()
eof=fp.tell() # here we store the pointer
              # indicating the end of the file in eof
fp.seek(0) # we bring the cursor at the begining of the file
if eof != fp.tell(): # we check if the cursor
     do_something()  # reaches the end of the file

git submodule update --recursive

You will also probably want to use the --init option which will make it initialize any uninitialized submodules:

git submodule update --init --recursive

Note: in some older versions of Git, if you use the --init option, already-initialized submodules may not be updated. In that case, you should also run the command without --init option.

I have done some work on a pretty complete port of the Django template language for Simon Willisons djangode project (Utilities functions for node.js that borrow some useful concepts from Django).

See the documentation here.

yes we can do this using nth-child like so

div:nth-child(n + 8) {
    background: red;
}

This will make the 8th div child onwards become red. Hope this helps...

Also, if someone ever says "hey, they can't be done with styled using css, use JS!!!" doubt them immediately. CSS is extremely flexible nowadays

Example :: http://jsfiddle.net/uWrLE/1/

In the example the first 7 children are blue, then 8 onwards are red...

I think a custom ControlValueAccessor is the best option.

Not tested but as far as I remember, this should work:

<input [(ngModel)]="value" pattern="[0-9]">

I know this is slightly off-topic, since some comments mentioned the ax.set_yscale('log') to be "nicest" solution I thought a rebuttal could be due. I would not recommend using ax.set_yscale('log') for histograms and bar plots. In my version (0.99.1.1) i run into some rendering problems - not sure how general this issue is. However both bar and hist has optional arguments to set the y-scale to log, which work fine.

references: http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.bar

http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.hist

Here is something I wrote for a site I made. It will auto-generate a random flat background-color for any div with the class .flat-color-gen. Jquery is only required for the purposes of adding css to the page; it's not required for the main part of this, which is the generateFlatColorWithOrder() method.

JsFiddle Link

(function($) {
    function generateFlatColorWithOrder(num, rr, rg, rb) {
        var colorBase = 256;
        var red = 0;
        var green = 0;
        var blue = 0;
        num = Math.round(num);
        num = num + 1;
        if (num != null) {

            red = (num*rr) % 256;
            green = (num*rg) % 256;
            blue = (num*rb) % 256;
        }
        var redString = Math.round((red + colorBase) / 2).toString();
        var greenString = Math.round((green + colorBase) / 2).toString();
        var blueString = Math.round((blue + colorBase) / 2).toString();
        return "rgb("+redString+", "+greenString+", "+blueString+")";
        //return '#' + redString + greenString + blueString;
    }

    function generateRandomFlatColor() {
        return generateFlatColorWithOrder(Math.round(Math.random()*127));
    }

    var rr = Math.round(Math.random()*1000);
    var rg = Math.round(Math.random()*1000);
    var rb = Math.round(Math.random()*1000);
    console.log("random red: "+ rr);
    console.log("random green: "+ rg);
    console.log("random blue: "+ rb);
    console.log("----------------------------------------------------");
    $('.flat-color-gen').each(function(i, obj) {
        console.log(generateFlatColorWithOrder(i));
        $(this).css("background-color",generateFlatColorWithOrder(i, rr, rg, rb).toString());
    });
})(window.jQuery);

I couldn't get it to trigger that on any page. A more robust version of this would do it:

window.console.log = function(){
    console.error('The developer console is temp...');
    window.console.log = function() {
        return false;
    }
}

console.log('test');

To style the output: Colors in JavaScript console

Edit Thinking @joeldixon66 has the right idea: Disable JavaScript execution from console « ::: KSpace :::

I just added that to the media object manually

let media = document.querySelector('.my-video');
media.isplaying = false;

...

if(media.isplaying) //do something

Then just toggle it when i hit play or pause.

Yes, it is possible. You might also want to define __all__ in __init__.py files. It's a list of modules that will be imported when you do

from lib import *

This will hide your console. Implement these lines in your code first to start hiding your console at first.

import win32gui, win32con

the_program_to_hide = win32gui.GetForegroundWindow()
win32gui.ShowWindow(the_program_to_hide , win32con.SW_HIDE)

Update May 2020 :

If you've got trouble on pip install win32con on Command Prompt, you can simply pip install pywin32.Then on your python script, execute import win32.lib.win32con as win32con instead of import win32con.

To show back your program again win32con.SW_SHOW works fine:

win32gui.ShowWindow(the_program_to_hide , win32con.SW_SHOW)

This one doesn't alter the original newer branch, and gives you the opportunity to make further modifications before final commit.

git checkout new -b tmp
git merge -s ours old -m 'irrelevant'
git checkout old
git merge --squash tmp
git branch -D tmp
#do any other stuff you want
git add -A; git commit -m 'foo' #commit (or however you like)

You have to do both:

SELECT * FROM Table WHERE Text IS NULL or Text LIKE ''

You need to have at least the same number of columns and each column has to be defined in exactly the same way, i.e. a varchar column can't be inserted into an int column.

For bulk transfer, check the documentation for the SQL implementation you're using. There are often tools available to bulk transfer data from one table to another. For SqlServer 2005, for example, you could use the SQL Server Import and Export Wizard. Right-click on the database you're trying to move data around in and click Export to access it.

In my case, the function CString was not found. But adding an empty string to the value works, too.

Dim Test As Integer, Test2 As Variant
Test = 10
Test2 = Test & ""
//Test2 is now "10" not 10

Dereferencing a pointer means getting the value that is stored in the memory location pointed by the pointer. The operator * is used to do this, and is called the dereferencing operator.

int a = 10;
int* ptr = &a;

printf("%d", *ptr); // With *ptr I'm dereferencing the pointer. 
                    // Which means, I am asking the value pointed at by the pointer.
                    // ptr is pointing to the location in memory of the variable a.
                    // In a's location, we have 10. So, dereferencing gives this value.

// Since we have indirect control over a's location, we can modify its content using the pointer. This is an indirect way to access a.

 *ptr = 20;         // Now a's content is no longer 10, and has been modified to 20.

Running nginx -t through your commandline will issue out a test and append the output with the filepath to the configuration file (with either an error or success message).

I like the answers from The Aelfinn and aheld. I can improve them only by shortening a bit more, removing superfluous pieces, using a real data source, making it 2.x & 3.x-compatible, and maintaining the high-level of memory-efficiency seen elsewhere:

import csv
import requests

CSV_URL = 'http://web.cs.wpi.edu/~cs1004/a16/Resources/SacramentoRealEstateTransactions.csv'

with requests.get(CSV_URL, stream=True) as r:
    lines = (line.decode('utf-8') for line in r.iter_lines())
    for row in csv.reader(lines):
        print(row)

Too bad 3.x is less flexible CSV-wise because the iterator must emit Unicode strings (while requests does bytes) while the 2.x-only version—for row in csv.reader(r.iter_lines()):—is more Pythonic (shorter and easier-to-read). Anyhow, note the 2.x/3.x solution above won't handle the situation described by the OP where a NEWLINE is found unquoted in the data read.

For the part of the OP's question regarding downloading (vs. processing) the actual CSV file, here's another script that does that, 2.x & 3.x-compatible, minimal, readable, and memory-efficient:

import os
import requests

CSV_URL = 'http://samplecsvs.s3.amazonaws.com/Sacramentorealestatetransactions.csv'

with open(os.path.split(CSV_URL)[1], 'wb') as f, \
        requests.get(CSV_URL, stream=True) as r:
    for line in r.iter_lines():
        f.write(line+'\n'.encode())

Expanded from @SeaBrightSystems answer, you could try this:

$s1 = "textasstringwoohoo";
$arr = str_split($s1); //$arr now has character array

Here is how I would do it, (however I would use an external style sheet for this project and all others. just makes things easier to work with. Also this example is with html5.

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style>
  .container {
      display:inline-block;
  }
</style>
</head>
<body>

  <div class="container">
    <figure>
    <img src="http://placehold.it/350x150" height="200" width="200">
    <figcaption>This is image 1</figcaption>
    </figure>

    <figure>
    <img class="middle-img" src="http://placehold.it/350x150"/ height="200" width="200">
    <figcaption>This is image 2</figcaption>
    </figure>

    <figure>
    <img src="http://placehold.it/350x150" height="200" width="200">
    <figcaption>This is image 3</figcaption>
    </figure>

  </div>
</body>
</html>

The more_itertools project extends itertools.islice to handle negative indices.

Example

import more_itertools as mit

iterable = 'ABCDEFGH'
list(mit.islice_extended(iterable, 1, -1))
# Out: ['B', 'C', 'D', 'E', 'F', 'G']

Therefore, you can elegantly apply it slice elements between the first and last items of an iterable:

for car in mit.islice_extended(cars, 1, -1):
    # do something

It's 2020 and stuffs had greatly evolved with php 7.4 and opcache.

Here is the OP^ benchmark, ran as unix CLI, without the echo and html parts.

Test ran locally on a regular computer.

php -v

PHP 7.4.6 (cli) (built: May 14 2020 10:02:44) ( NTS )

Modified benchmark script:

<?php 
 ## preperations; just a simple environment state

  $test_iterations = 100;
  $test_arr_size = 1000;

  // a shared function that makes use of the loop; this should
  // ensure no funny business is happening to fool the test
  function test($input)
  {
    //echo '<!-- '.trim($input).' -->';
  }

  // for each test we create a array this should avoid any of the
  // arrays internal representation or optimizations from getting
  // in the way.

  // normal array
  $test_arr1 = array();
  $test_arr2 = array();
  $test_arr3 = array();
  // hash tables
  $test_arr4 = array();
  $test_arr5 = array();

  for ($i = 0; $i < $test_arr_size; ++$i)
  {
    mt_srand();
    $hash = md5(mt_rand());
    $key = substr($hash, 0, 5).$i;

    $test_arr1[$i] = $test_arr2[$i] = $test_arr3[$i] = $test_arr4[$key] = $test_arr5[$key]
      = $hash;
  }

  ## foreach

  $start = microtime(true);
  for ($j = 0; $j < $test_iterations; ++$j)
  {
    foreach ($test_arr1 as $k => $v)
    {
      test($v);
    }
  }
  echo 'foreach '.(microtime(true) - $start)."\n";  

  ## foreach (using reference)

  $start = microtime(true);
  for ($j = 0; $j < $test_iterations; ++$j)
  {
    foreach ($test_arr2 as &$value)
    {
      test($value);
    }
  }
  echo 'foreach (using reference) '.(microtime(true) - $start)."\n";

  ## for

  $start = microtime(true);
  for ($j = 0; $j < $test_iterations; ++$j)
  {
    $size = count($test_arr3);
    for ($i = 0; $i < $size; ++$i)
    {
      test($test_arr3[$i]);
    }
  }
  echo 'for '.(microtime(true) - $start)."\n";  

  ## foreach (hash table)

  $start = microtime(true);
  for ($j = 0; $j < $test_iterations; ++$j)
  {
    foreach ($test_arr4 as $k => $v)
    {
      test($v);
    }
  }
  echo 'foreach (hash table) '.(microtime(true) - $start)."\n";

  ## for (hash table)

  $start = microtime(true);
  for ($j = 0; $j < $test_iterations; ++$j)
  {
    $keys = array_keys($test_arr5);
    $size = sizeOf($test_arr5);
    for ($i = 0; $i < $size; ++$i)
    {
      test($test_arr5[$keys[$i]]);
    }
  }
  echo 'for (hash table) '.(microtime(true) - $start)."\n";

Output:

foreach 0.0032877922058105
foreach (using reference) 0.0029420852661133
for 0.0025191307067871
foreach (hash table) 0.0035080909729004
for (hash table) 0.0061779022216797

As you can see the evolution is insane, about 560 time faster than reported in 2012.

On my machines and servers, following my numerous experiments, basics for loops are the fastest. This is even clearer using nested loops ($i $j $k..)

It is also the most flexible in usage, and has a better readability from my view.

That should work if the dates you saved in the DB are without time (just year, month, day).

Chances are that the dates you saved were new Date(), which includes the time components. To query those times you need to create a date range that includes all moments in a day.

db.posts.find({ //query today up to tonight
    created_on: {
        $gte: new Date(2012, 7, 14), 
        $lt: new Date(2012, 7, 15)
    }
})

I made this function, based on eis's answer:

function array_map_($callback, $arr) {
    if (!is_callable($callback))
        return $arr;

    $result = array_walk($arr, function(&$value, $key) use ($callback) {
        $value = call_user_func($callback, $key, $value);
    });

    if (!$result)
        return false;

    return $arr;
}

Example:

$test_array = array("first_key" => "first_value", 
                "second_key" => "second_value");

var_dump(array_map_(function($key, $value){
    return $key . " loves " . $value;
}, $arr));

Output:

array (
  'first_key' => 'first_key loves first_value,
  'second_key' => 'second_key loves second_value',
)

Off course, you can use array_values to return exactly what OP wants.

array_values(array_map_(function($key, $value){
    return $key . " loves " . $value;
}, $test_array))

I found several posts telling me to run several gpg commands, but they didn't solve the problem because of two things. First, I was missing the debian-keyring package on my system and second I was using an invalid keyserver. Try different keyservers if you're getting timeouts!

Thus, the way I fixed it was:

apt-get install debian-keyring
gpg --keyserver pgp.mit.edu --recv-keys 1F41B907
gpg --armor --export 1F41B907 | apt-key add -

Then running a new "apt-get update" worked flawlessly!

-eq is a mathematical comparison operator. I've never used it for string comparison, relying on == and != for compares.

if [ 'XYZ' == 'ABC' ]; then   # Double equal to will work in Linux but not on HPUX boxes it should be if [ 'XYZ' = 'ABC' ] which will work on both
  echo "Match"
else
  echo "No Match"
fi

.First will throw an exception when there are no results. .FirstOrDefault won't, it will simply return either null (reference types) or the default value of the value type. (e.g like 0 for an int.) The question here is not when you want the default type, but more: Are you willing to handle an exception or handle a default value? Since exceptions should be exceptional, FirstOrDefault is preferred when you're not sure if you're going to get results out of your query. When logically the data should be there, exception handling can be considered.

Skip() and Take() are normally used when setting up paging in results. (Like showing the first 10 results, and the next 10 on the next page, etc.)

Hope this helps.

Coming from Python this bugged me. I wrote a simple wrapper/Proxy for node that will accept both positional and keyword objects.

https://github.com/vinces1979/node-def/blob/master/README.md

This one liner replaces all the ^M characters:

dos2unix <file-name>

You can call this from inside Perl or directly on your Unix prompt.

Had this problem on windows 10, eclipse Neon Release (4.6.0) and MSYS2 installed. Eclipse kept complaining that "Program 'g++' not found in PATH” and "Program 'gcc' not found in PATH”, yet it was compiling and running my C++ code. From the command prompt, I could run g++.

Solution was to define the C++ Environmental variable for eclipse called 'PATH' to point to windows variable called 'path' also $(Path). Menus: Preferences>>C/C++>>Build>>Environment

Looks like eclipse is case sensitive with the name of this environmental, while windows doesn't care about the case.

Another option is to format your axis tick labels with commas is by using the package scales, and add

 scale_y_continuous(name="Fluorescent intensity/arbitrary units", labels = comma)

to your ggplot statement.

If you don't want to load the package, use:

scale_y_continuous(name="Fluorescent intensity/arbitrary units", labels = scales::comma)

As I could understand the question is not about how pass a string with control symbols using json but how to store and restore json in file where you can split a string with editor control symbols.

If you want to store multiline string in a file then your file will not store the valid json object. But if you use your json files in your program only, then you can store the data as you wanted and remove all newlines from file manually each time you load it to your program and then pass to json parser.

Or, alternatively, which would be better, you can have your json data source files where you edit a sting as you want and then remove all new lines with some utility to the valid json file which your program will use.

In my case I've to specify the complete package name of library UI component that I use in my layout file.

For completeness, we should mention PEP3119 where ABC was introduced and compared with interfaces, and original Talin's comment.

The abstract class is not perfect interface:

• belongs to the inheritance hierarchy
• is mutable

But if you consider writing it your own way:

def some_function(self):
     raise NotImplementedError()

interface = type(
    'your_interface', (object,),
    {'extra_func': some_function,
     '__slots__': ['extra_func', ...]
     ...
     '__instancecheck__': your_instance_checker,
     '__subclasscheck__': your_subclass_checker
     ...
    }
)

ok, rather as a class
or as a metaclass
and fighting with python to achieve the immutable object
and doing refactoring
...

you'll quite fast realize that you're inventing the wheel to eventually achieve abc.ABCMeta

abc.ABCMeta was proposed as a useful addition of the missing interface functionality, and that's fair enough in a language like python.

Certainly, it was able to be enhanced better whilst writing version 3, and adding new syntax and immutable interface concept ...

Conclusion:

The abc.ABCMeta IS "pythonic" interface in python

I just want to share the code I created that might help you.

DECLARE @MyCounter int = 0, @TempDate datetime, @EndDate datetime;
SET @TempDate = DATEADD(d,1,'2017-5-27')
SET @EndDate = '2017-6-3'

WHILE @TempDate <= @EndDate
    BEGIN
    IF DATENAME(DW,@TempDate) = 'Sunday' OR DATENAME(DW,@TempDate) = 'Saturday'
        SET @MyCounter = @MyCounter
    ELSE IF @TempDate not in ('2017-1-1', '2017-1-16', '2017-2-20', '2017-5-29', '2017-7-4', '2017-9-4', '2017-10-9', '2017-11-11', '2017-12-25')
        SET @MyCounter = @MyCounter + 1

    SET @TempDate = DATEADD(d,1,@TempDate)
    CONTINUE

END
PRINT @MyCounter
PRINT @TempDate

If you do have a holiday table, you can also use that so that you don't have to list all the holidays in the ELSE IF section of the code. You can also create a function for this code and use the function whenever you need it in your query.

I hope this might help too.

I'm using apache-tomcat-7.0.70 with jdk1.7.0_45 and none of the solutions here and elsewhere on stackoverflow worked for me. Just sharing this solution as it hopefully might help someone as this is very high on Google's search

What worked is doing BOTH of these steps:

1. Starting my tomcat with "export JAVA_OPTS="$JAVA_OPTS -Dhttps.protocols=TLSv1.2" by adding it to tomcat/bin/setenv.sh (Syntax slightly different on Windows)

2. Manually building/forcing HttpClients or anything else you need with the TLS1.2 protocol:

   Context ctx = SSLContexts.custom().useProtocol("TLSv1.2").build();
   HttpClient httpClient = HttpClientBuilder.create().setSslcontext(ctx).build();
   HttpPost httppost = new HttpPost(scsTokenVerificationUrl);
   
   List<NameValuePair> paramsAccessToken = new ArrayList<NameValuePair>(2);
   paramsAccessToken.add(new BasicNameValuePair("token", token));
   paramsAccessToken.add(new BasicNameValuePair("client_id", scsClientId));
   paramsAccessToken.add(new BasicNameValuePair("secret", scsClientSecret));
   httppost.setEntity(new UrlEncodedFormEntity(paramsAccessToken, "utf-8"));
   
   //Execute and get the response.
   HttpResponse httpResponseAccessToken = httpClientAccessToken.execute(httppost);
   
   String responseJsonAccessToken = EntityUtils.toString(httpResponseAccessToken.getEntity());
   

Try MM/dd/yyyy hh:mm:ss a format.

Java code to create XML file.

xmlResponse.append("mydate>").append(this.formatDate(resultSet.getTimestamp("date"), "MM/dd/yyyy hh:mm:ss a")).append("");

public String formatDate(Date date, String format)
{
    String dateString = "";
    if(null != date)
    {
        SimpleDateFormat dateFormat = new SimpleDateFormat(format);
        dateString = dateFormat.format(date);
    }
    return dateString;
}

A possible soluttion that requires tweaking, but is very flexible is to use one of \big, \Big, \bigg,\Bigg in front of your division sign - these will make it progressively larger. For your formula, I think

  $\frac{a_1}{a_2} \Big/ \frac{b_1}{b_2}$

looks nicer than \middle\ which is automatically sized and IMHO is a bit too large.

I have a sample from your code. Try this:

echo "*Select Option:*"
echo "1 - script1"
echo "2 - script2"
echo "3 - script3 "
read option
echo "You have selected" $option"."
if [ $option="1" ]
then
    echo "1"
elif [ $option="2" ]
then
    echo "2"
    exit 0
elif [ $option="3" ]
then
    echo "3"
    exit 0
else
    echo "Please try again from given options only."
fi

This should work. :)