Here is a way to do it that works, but may not be best practise for any language really:

var x,y;
x='something';
y=1;
undefined === y || (x = y);

alternatively

undefined !== y && (x = y);

The multi-framework safe shorthand for ready is:

jQuery(function($, undefined) {
    // $ is guaranteed to be short for jQuery in this scope
    // undefined is provided because it could have been overwritten elsewhere
});

This is because jQuery isn't the only framework that uses the $ and undefined variables

PHP 7.4+; with the null coalescing assignment operator

$var ??= '';

PHP 7.0+; with the null coalescing operator

$var = $var ?? '';

PHP 5.3+; with the ternary operator shorthand

isset($var) ?: $var = '';

Or for all/older versions with isset:

$var = isset($var) ? $var : '';

or

!isset($var) && $var = '';

Syntax:

transition: <property> || <duration> || <timing-function> || <delay> [, ...];

Note that the duration must come before the delay, if the latter is specified.

Individual transitions combined in shorthand declarations:

-webkit-transition: height 0.3s ease-out, opacity 0.3s ease 0.5s;
-moz-transition: height 0.3s ease-out, opacity 0.3s ease 0.5s;
-o-transition: height 0.3s ease-out, opacity 0.3s ease 0.5s;
transition: height 0.3s ease-out, opacity 0.3s ease 0.5s;

Or just transition them all:

-webkit-transition: all 0.3s ease-out;
-moz-transition: all 0.3s ease-out;
-o-transition: all 0.3s ease-out;
transition: all 0.3s ease-out;

Here is a straightforward example. Here is another one with the delay property.

Edit: previously listed here were the compatibilities and known issues regarding transition. Removed for readability.

Bottom-line: just use it. The nature of this property is non-breaking for all applications and compatibility is now well above 94% globally.

If you still want to be sure, refer to http://caniuse.com/css-transitions

Note x += y is not the same as x = x + y in some situations where an additional operator is included because of the operator precedence combined with the fact that the right hand side is always evaluated first, e.g.

>>> x = 2
>>> x += 2 and 1
>>> x
3

>>> x = 2
>>> x = x + 2 and 1
>>> x
1

Note the first case expand to:

>>> x = 2
>>> x = x + (2 and 1)
>>> x
3

You are more likely to encounter this in the 'real world' with other operators, e.g.

x *= 2 + 1 == x = x * (2 + 1) != x = x * 2 + 1

If you're not doing the else, why not do:

if (x==2) doSomething();

You can use the @ symbol in front of a string to form a verbatim string literal:

string query = @"SELECT foo, bar
FROM table
WHERE id = 42";

You also do not have to escape special characters when you use this method, except for double quotes as shown in Jon Skeet's answer.

You concrete problem is caused because you're mixing discouraged and old school scriptlets <% %> with its successor EL ${}. They do not share the same variable scope. The allFestivals is not available in scriptlet scope and the i is not available in EL scope.

You should install JSTL (<-- click the link for instructions) and declare it in top of JSP as follows:

<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>

and then iterate over the list as follows:

<c:forEach items="${allFestivals}" var="festival">
    <tr>      
        <td>${festival.festivalName}</td>
        <td>${festival.location}</td>
        <td>${festival.startDate}</td>
        <td>${festival.endDate}</td>
        <td>${festival.URL}</td>  
    </tr>
</c:forEach>

(beware of possible XSS attack holes, use <c:out> accordingly)

Don't forget to remove the <jsp:useBean> as it has no utter value here when you're using a servlet as model-and-view controller. It would only lead to confusion. See also our servlets wiki page. Further you would do yourself a favour to disable scriptlets by the following entry in web.xml so that you won't accidently use them:

<jsp-config>
    <jsp-property-group>
        <url-pattern>*.jsp</url-pattern>
        <scripting-invalid>true</scripting-invalid>
    </jsp-property-group>
</jsp-config>

If your array is encoded in UTF-8 and you can't use the TextDecoder API because it is not supported on IE:

1. You can use the FastestSmallestTextEncoderDecoder polyfill recommended by the Mozilla Developer Network website;
2. You can use this function also provided at the MDN website:

function utf8ArrayToString(aBytes) {_x000D_
    var sView = "";_x000D_
    _x000D_
    for (var nPart, nLen = aBytes.length, nIdx = 0; nIdx < nLen; nIdx++) {_x000D_
        nPart = aBytes[nIdx];_x000D_
        _x000D_
        sView += String.fromCharCode(_x000D_
            nPart > 251 && nPart < 254 && nIdx + 5 < nLen ? /* six bytes */_x000D_
                /* (nPart - 252 << 30) may be not so safe in ECMAScript! So...: */_x000D_
                (nPart - 252) * 1073741824 + (aBytes[++nIdx] - 128 << 24) + (aBytes[++nIdx] - 128 << 18) + (aBytes[++nIdx] - 128 << 12) + (aBytes[++nIdx] - 128 << 6) + aBytes[++nIdx] - 128_x000D_
            : nPart > 247 && nPart < 252 && nIdx + 4 < nLen ? /* five bytes */_x000D_
                (nPart - 248 << 24) + (aBytes[++nIdx] - 128 << 18) + (aBytes[++nIdx] - 128 << 12) + (aBytes[++nIdx] - 128 << 6) + aBytes[++nIdx] - 128_x000D_
            : nPart > 239 && nPart < 248 && nIdx + 3 < nLen ? /* four bytes */_x000D_
                (nPart - 240 << 18) + (aBytes[++nIdx] - 128 << 12) + (aBytes[++nIdx] - 128 << 6) + aBytes[++nIdx] - 128_x000D_
            : nPart > 223 && nPart < 240 && nIdx + 2 < nLen ? /* three bytes */_x000D_
                (nPart - 224 << 12) + (aBytes[++nIdx] - 128 << 6) + aBytes[++nIdx] - 128_x000D_
            : nPart > 191 && nPart < 224 && nIdx + 1 < nLen ? /* two bytes */_x000D_
                (nPart - 192 << 6) + aBytes[++nIdx] - 128_x000D_
            : /* nPart < 127 ? */ /* one byte */_x000D_
                nPart_x000D_
        );_x000D_
    }_x000D_
    _x000D_
    return sView;_x000D_
}_x000D_
_x000D_
let str = utf8ArrayToString([50,72,226,130,130,32,43,32,79,226,130,130,32,226,135,140,32,50,72,226,130,130,79]);_x000D_
_x000D_
// Must show 2H2 + O2 ? 2H2O_x000D_
console.log(str);

alternatively, you can try writing a specific element:

    //label[1] is the first element.
    el =  await driver.findElement(By.xpath("//div[@class=\"facetContainerDiv\"]/div/label[1]/input")));
    await el.click();

More information can be found here: https://www.browserstack.com/guide/locators-in-selenium

Hope this will help.

.flex-container {
  padding: 0;
  margin: 0;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: center;
}
row {
  width: 100%;
}
.flex-item {
  background: tomato;
  padding: 5px;
  width: 200px;
  height: 150px;
  margin: 10px;
  line-height: 150px;
  color: white;
  font-weight: bold;
  font-size: 3em;
  text-align: center;
}

I have done good research on the save() vs. persist() including running it on my local machine several times. All the previous explanations are confusing and incorrect. I compare save() and persist() methods below after a thorough research.

Save()

1. Returns generated Id after saving. Its return type is Serializable;
2. Saves the changes to the database outside of the transaction;
3. Assigns the generated id to the entity you are persisting;
4. session.save() for a detached object will create a new row in the table.

Persist()

1. Does not return generated Id after saving. Its return type is void;
2. Does not save the changes to the database outside of the transaction;
3. Assigns the generated Id to the entity you are persisting;
4. session.persist() for a detached object will throw a PersistentObjectException, as it is not allowed.

All these are tried/tested on Hibernate v4.0.1.

According to my interpretation of the implementation of unicode-escape and the unicode repr in the CPython 2.6.5 source, yes; the only difference between repr(unicode_string) and unicode_string.encode('unicode-escape') is the inclusion of wrapping quotes and escaping whichever quote was used.

They are both driven by the same function, unicodeescape_string. This function takes a parameter whose sole function is to toggle the addition of the wrapping quotes and escaping of that quote.

To add to the above correct answer :- For my case in shell, this code worked (working on sqoop)

ROOT_PATH="path/to/the/folder"
--options-file  $ROOT_PATH/query.txt

Git 1.8.2 features a new option ,--remote, that will enable exactly this behavior. Running

git submodule update --rebase --remote

will fetch the latest changes from upstream in each submodule, rebase them, and check out the latest revision of the submodule. As the documentation puts it:

--remote

This option is only valid for the update command. Instead of using the superproject’s recorded SHA-1 to update the submodule, use the status of the submodule’s remote-tracking branch.

This is equivalent to running git pull in each submodule, which is generally exactly what you want.

(This was copied from this answer.)

I find the STR function the cleanest means of accomplishing this.

SELECT STR(ceiling(123.415432875), 6, 2)

Its very simple you just add this script,

$("#mydate").datepicker({ dateFormat: "yy-mm-dd"}).datepicker("setDate", new Date());

Here, setDate set today date & dateFormat define which format you want set or show.

Hope its simple script work..

public class customer
{
    public void InsertCustomer(string name,int age,string address)
    {
        // create and open a connection object
        using(SqlConnection Con=DbConnection.GetDbConnection())
        {
            // 1. create a command object identifying the stored procedure
            SqlCommand cmd = new SqlCommand("spInsertCustomerData",Con);

            // 2. set the command object so it knows to execute a stored procedure
            cmd.CommandType = CommandType.StoredProcedure;

            SqlParameter paramName = new SqlParameter();
            paramName.ParameterName = "@nvcname";
            paramName.Value = name;
            cmd.Parameters.Add(paramName);

            SqlParameter paramAge = new SqlParameter();
            paramAge.ParameterName = "@inage";
            paramAge.Value = age;
            cmd.Parameters.Add(paramAge);

            SqlParameter paramAddress = new SqlParameter();
            paramAddress.ParameterName = "@nvcaddress";
            paramAddress.Value = address;
            cmd.Parameters.Add(paramAddress);

            cmd.ExecuteNonQuery();
        }
    }
}

I write some test code:

#include <string>
#include <iostream>
#include <stdio.h>

using namespace std;

struct sc {
    int x;
    string y;
    int* z;
};

int main(int argc, char** argv)
{
   int* r = new int[128];
   for(int i = 0; i < 128; i++ ) {
        r[i] = i+32;
   }
   cout << r[100] << endl;
   delete r;

   sc* a = new sc;
   sc* aa = new sc[2];
   sc* b = new sc();
   sc* ba = new sc[2]();

   cout << "az:" << a->z << endl;
   cout << "bz:" << b->z << endl;
   cout << "a:" << a->x << " y" << a->y << "end" << endl;
   cout << "b:" << b->x << " y" << b->y <<  "end" <<endl;
   cout << "aa:" << aa->x << " y" << aa->y <<  "end" <<endl;
   cout << "ba:" << ba->x << " y" << ba->y <<  "end" <<endl;
}

g++ compile and run:

./a.out 
132
az:0x2b0000002a
bz:0
a:854191480 yend
b:0 yend
aa:854190968 yend
ba:0 yend

A popular method to tackle the problem of reducing JavaScript references from HTML files is by using a concatenation tool like Sprockets, which preprocesses and concatenates JavaScript source files together.

Apart from reducing the number of references from the HTML files, this will also reduce the number of hits to the server.

You may then want to run the resulting concatenation through a minification tool like jsmin to have it minified.

As simple as this

x = "some data you want to return"
return x, 200, {'Content-Type': 'text/css; charset=utf-8'}

Hope it helps

Update: Use this method because it will work with both python 2.x and python 3.x

and secondly it also eliminates multiple header problem.

from flask import Response
r = Response(response="TEST OK", status=200, mimetype="application/xml")
r.headers["Content-Type"] = "text/xml; charset=utf-8"
return r

Usually I create Fowler's Range implementation for such things.

public interface IRange<T>
{
    T Start { get; }
    T End { get; }
    bool Includes(T value);
    bool Includes(IRange<T> range);
}

public class DateRange : IRange<DateTime>         
{
    public DateRange(DateTime start, DateTime end)
    {
        Start = start;
        End = end;
    }

    public DateTime Start { get; private set; }
    public DateTime End { get; private set; }

    public bool Includes(DateTime value)
    {
        return (Start <= value) && (value <= End);
    }

    public bool Includes(IRange<DateTime> range)
    {
        return (Start <= range.Start) && (range.End <= End);
    }
}

Usage is pretty simple:

DateRange range = new DateRange(startDate, endDate);
range.Includes(date)

Here's a modified version if you use CloudFlare caching layer Services

function getIP()
{
    $fields = array('HTTP_X_FORWARDED_FOR',
                    'REMOTE_ADDR',
                    'HTTP_CF_CONNECTING_IP',
                    'HTTP_X_CLUSTER_CLIENT_IP');

    foreach($fields as $f)
    {
        $tries = $_SERVER[$f];
        if (empty($tries))
            continue;
        $tries = explode(',',$tries);
        foreach($tries as $try)
        {
            $r = filter_var($try,
                            FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 |
                            FILTER_FLAG_NO_PRIV_RANGE |
                            FILTER_FLAG_NO_RES_RANGE);

            if ($r !== false)
            {
                return $try;
            }
        }
    }
    return false;
}

One pragmatic tip: you can search easily for the static_cast keyword in your source code if you plan to tidy up the project.

Deleting index.lock worked for me

In PowerShell 5 and PowerShell 5 ISE, it is also possible to use just Shift + Enter for multiline editing (instead of standard backticks ` at the end of each line):

PS> &"C:\Program Files\IIS\Microsoft Web Deploy\msdeploy.exe" # Shift+Enter
>>> -verb:sync # Shift+Enter
>>> -source:contentPath="c:\workspace\xxx\master\Build\_PublishedWebsites\xxx.Web" # Shift+Enter
>>> -dest:contentPath="c:\websites\xxx\wwwroot,computerName=192.168.1.1,username=administrator,password=xxx"

You need to add a reference to System.Web.Extensions.dll in project for System.Web.Script.Serialization error.

To get first object from array of objects by a specific property value:

function getObjectFromObjectsArrayByPropertyValue(objectsArray, propertyName, propertyValue) {_x000D_
  return objectsArray.find(function (objectsArrayElement) {_x000D_
    return objectsArrayElement[propertyName] == propertyValue;_x000D_
  });_x000D_
}_x000D_
_x000D_
function findObject () {_x000D_
  var arrayOfObjectsString = document.getElementById("arrayOfObjects").value,_x000D_
      arrayOfObjects,_x000D_
      propertyName = document.getElementById("propertyName").value,_x000D_
      propertyValue = document.getElementById("propertyValue").value,_x000D_
      preview = document.getElementById("preview"),_x000D_
      searchingObject;_x000D_
  _x000D_
  arrayOfObjects = JSON.parse(arrayOfObjectsString);_x000D_
  _x000D_
  console.debug(arrayOfObjects);_x000D_
  _x000D_
  if(arrayOfObjects && propertyName && propertyValue) {_x000D_
    searchingObject = getObjectFromObjectsArrayByPropertyValue(arrayOfObjects, propertyName, propertyValue);_x000D_
    if(searchingObject) {_x000D_
      preview.innerHTML = JSON.stringify(searchingObject, false, 2);_x000D_
    } else {_x000D_
      preview.innerHTML = "there is no object with property " + propertyName + " = " + propertyValue + " in your array of objects";_x000D_
    }_x000D_
  }_x000D_
}

pre {_x000D_
  padding: 5px;_x000D_
  border-radius: 4px;_x000D_
  background: #f3f2f2;_x000D_
}_x000D_
_x000D_
textarea, button {_x000D_
  width: 100%_x000D_
}

<fieldset>_x000D_
  <legend>Input Data:</legend>_x000D_
  <label>Put here your array of objects</label>_x000D_
  <textarea rows="7" id="arrayOfObjects">_x000D_
  [_x000D_
    {"a": 1, "b": 2},_x000D_
    {"a": 3, "b": 4},_x000D_
    {"a": 5, "b": 6},_x000D_
    {"a": 7, "b": 8, "c": 157}_x000D_
  ]_x000D_
  </textarea>_x000D_
_x000D_
  <hr>_x000D_
_x000D_
  <label>property name: </label> <input type="text" id="propertyName"  value="b"/>_x000D_
  <label>property value: </label> <input type="text" id="propertyValue" value=6 />_x000D_
     _x000D_
</fieldset>_x000D_
<hr>_x000D_
<button onclick="findObject()">find object in array!</button>_x000D_
<hr>_x000D_
<fieldset>_x000D_
  <legend>Searching Result:</legend>_x000D_
  <pre id="preview">click find</pre>_x000D_
</fieldset>

Mathematically, to get percentage from two numbers:

percentage = (yourNumber / totalNumber) * 100;

And also, to calculate from a percentage :

number = (percentage / 100) * totalNumber;

While verbatim might be the best choice, you can also try the commands \smallskip , \medskip or guess what, \bigskip .

Quoting from this page:

These commands can only be used after a paragraph break (which is made by one completely blank line or by the command \par). These commands output flexible or rubber space, approximately 3pt, 6pt, and 12pt high respectively, but these commands will automatically compress or expand a bit, depending on the demands of the rest of the page

foo->bar is equivalent to (*foo).bar, i.e. it gets the member called bar from the struct that foo points to.

Command to get the database backup from linux machine terminal.

sqlcmd -S localhost -U SA -Q "BACKUP DATABASE [demodb] TO DISK = N'/var/opt/mssql/data/demodb.bak' WITH NOFORMAT, NOINIT, NAME = 'demodb-full', SKIP, NOREWIND, NOUNLOAD, STATS = 10"

Backup and restore SQL Server databases on Linux

The simple solution using geom_abline:

geom_abline(slope = coef(data.lm)[[2]], intercept = coef(data.lm)[[1]])

Where data.lm is an lm object, and coef(data.lm) looks something like this:

> coef(data.lm)
(Intercept)    DepDelay 
  -2.006045    1.025109 

The numeric indexing assumes that (Intercept) is listed first, which is the case if the model includes an intercept. If you have some other linear model object, just plug in the slope and intercept values similarly.

I'm using Debian 7 64-bit.

I didn't have a .vimrc file in my home folder. I created one and was able to set user defaults for vim.

However, for Debian 7, another way is to edit /etc/vim/vimrc

Here is a comment block in that file:

" All system-wide defaults are set in $VIMRUNTIME/debian.vim (usually just
" /usr/share/vim/vimcurrent/debian.vim) and sourced by the call to :runtime
" you can find below.  If you wish to change any of those settings, you should
" do it in this file (/etc/vim/vimrc), since debian.vim will be overwritten
" everytime an upgrade of the vim packages is performed.  It is recommended to
" make changes after sourcing debian.vim since it alters the value of the
" 'compatible' option.

Carry Flag is a flag set when:

a) two unsigned numbers were added and the result is larger than "capacity" of register where it is saved. Ex: we wanna add two 8 bit numbers and save result in 8 bit register. In your example: 255 + 9 = 264 which is more that 8 bit register can store. So the value "8" will be saved there (264 & 255 = 8) and CF flag will be set.

b) two unsigned numbers were subtracted and we subtracted the bigger one from the smaller one. Ex: 1-2 will give you 255 in result and CF flag will be set.

Auxiliary Flag is used as CF but when working with BCD. So AF will be set when we have overflow or underflow on in BCD calculations. For example: considering 8 bit ALU unit, Auxiliary flag is set when there is carry from 3rd bit to 4th bit i.e. carry from lower nibble to higher nibble. (Wiki link)

Overflow Flag is used as CF but when we work on signed numbers. Ex we wanna add two 8 bit signed numbers: 127 + 2. the result is 129 but it is too much for 8bit signed number, so OF will be set. Similar when the result is too small like -128 - 1 = -129 which is out of scope for 8 bit signed numbers.

You can read more about flags on wikipedia

Use x.fullNameMethod() to call the method.

You can use the document.createElement() function like this:

function addScript( src ) {
  var s = document.createElement( 'script' );
  s.setAttribute( 'src', src );
  document.body.appendChild( s );
}

I'm looking at PostgreSQL full-text search right now, and it has all the right features of a modern search engine, really good extended character and multilingual support, nice tight integration with text fields in the database.

But it doesn't have user-friendly search operators like + or AND (uses & | !) and I'm not thrilled with how it works on their documentation site. While it has bolding of match terms in the results snippets, the default algorithm for which match terms is not great. Also, if you want to index rtf, PDF, MS Office, you have to find and integrate a file format converter.

OTOH, it's way better than the MySQL text search, which doesn't even index words of three letters or fewer. It's the default for the MediaWiki search, and I really think it's no good for end-users: http://www.searchtools.com/analysis/mediawiki-search/

In all cases I've seen, Lucene/Solr and Sphinx are really great. They're solid code and have evolved with significant improvements in usability, so the tools are all there to make search that satisfies almost everyone.

for SHAILI - SOLR includes the Lucene search code library and has the components to be a nice stand-alone search engine.

This can also depend on the way you are invoking the SP from your C# code. If the SP returns some table type value then invoke the SP with ExecuteStoreQuery, and if the SP doesn't returns any value invoke the SP with ExecuteStoreCommand

It's because you're trying to assign an object by reference. Remove the ampersand and your script should work as intended.

Not really related to this answer, but I'd ditch git pull, which just runs git fetch followed by git merge. You are doing three merges, which is going to make your Git run three fetch operations, when one fetch is all you will need. Hence:

git fetch origin   # update all our origin/* remote-tracking branches

git checkout demo         # if needed -- your example assumes you're on it
git merge origin/demo     # if needed -- see below

git checkout master
git merge origin/master

git merge -X theirs demo   # but see below

git push origin master     # again, see below

Controlling the trickiest merge

The most interesting part here is git merge -X theirs. As root545 noted, the -X options are passed on to the merge strategy, and both the default recursive strategy and the alternative resolve strategy take -X ours or -X theirs (one or the other, but not both). To understand what they do, though, you need to know how Git finds, and treats, merge conflicts.

A merge conflict can occur within some file¹ when the base version differs from both the current (also called local, HEAD, or --ours) version and the other (also called remote or --theirs) version of that same file. That is, the merge has identified three revisions (three commits): base, ours, and theirs. The "base" version is from the merge base between our commit and their commit, as found in the commit graph (for much more on this, see other StackOverflow postings). Git has then found two sets of changes: "what we did" and "what they did". These changes are (in general) found on a line-by-line, purely textual basis. Git has no real understanding of file contents; it is merely comparing each line of text.

These changes are what you see in git diff output, and as always, they have context as well. It's possible that things we changed are on different lines from things they changed, so that the changes seem like they would not collide, but the context has also changed (e.g., due to our change being close to the top or bottom of the file, so that the file runs out in our version, but in theirs, they have also added more text at the top or bottom).

If the changes happen on different lines—for instance, we change color to colour on line 17 and they change fred to barney on line 71—then there is no conflict: Git simply takes both changes. If the changes happen on the same lines, but are identical changes, Git takes one copy of the change. Only if the changes are on the same lines, but are different changes, or that special case of interfering context, do you get a modify/modify conflict.

The -X ours and -X theirs options tell Git how to resolve this conflict, by picking just one of the two changes: ours, or theirs. Since you said you are merging demo (theirs) into master (ours) and want the changes from demo, you would want -X theirs.

Blindly applying -X, however, is dangerous. Just because our changes did not conflict on a line-by-line basis does not mean our changes do not actually conflict! One classic example occurs in languages with variable declarations. The base version might declare an unused variable:

int i;

In our version, we delete the unused variable to make a compiler warning go away—and in their version, they add a loop some lines later, using i as the loop counter. If we combine the two changes, the resulting code no longer compiles. The -X option is no help here since the changes are on different lines.

If you have an automated test suite, the most important thing to do is to run the tests after merging. You can do this after committing, and fix things up later if needed; or you can do it before committing, by adding --no-commit to the git merge command. We'll leave the details for all of this to other postings.

¹You can also get conflicts with respect to "file-wide" operations, e.g., perhaps we fix the spelling of a word in a file (so that we have a change), and they delete the entire file (so that they have a delete). Git will not resolve these conflicts on its own, regardless of -X arguments.

Doing fewer merges and/or smarter merges and/or using rebase

There are three merges in both of our command sequences. The first is to bring origin/demo into the local demo (yours uses git pull which, if your Git is very old, will fail to update origin/demo but will produce the same end result). The second is to bring origin/master into master.

It's not clear to me who is updating demo and/or master. If you write your own code on your own demo branch, and others are writing code and pushing it to the demo branch on origin, then this first-step merge can have conflicts, or produce a real merge. More often than not, it's better to use rebase, rather than merge, to combine work (admittedly, this is a matter of taste and opinion). If so, you might want to use git rebase instead. On the other hand, if you never do any of your own commits on demo, you don't even need a demo branch. Alternatively, if you want to automate a lot of this, but be able to check carefully when there are commits that both you and others, made, you might want to use git merge --ff-only origin/demo: this will fast-forward your demo to match the updated origin/demo if possible, and simply outright fail if not (at which point you can inspect the two sets of changes, and choose a real merge or a rebase as appropriate).

This same logic applies to master, although you are doing the merge on master, so you definitely do need a master. It is, however, even likelier that you would want the merge to fail if it cannot be done as a fast-forward non-merge, so this probably also should be git merge --ff-only origin/master.

Let's say that you never do your own commits on demo. In this case we can ditch the name demo entirely:

git fetch origin   # update origin/*

git checkout master
git merge --ff-only origin/master || die "cannot fast-forward our master"

git merge -X theirs origin/demo || die "complex merge conflict"

git push origin master

If you are doing your own demo branch commits, this is not helpful; you might as well keep the existing merge (but maybe add --ff-only depending on what behavior you want), or switch it to doing a rebase. Note that all three methods may fail: merge may fail with a conflict, merge with --ff-only may not be able to fast-forward, and rebase may fail with a conflict (rebase works by, in essence, cherry-picking commits, which uses the merge machinery and hence can get a merge conflict).

Socket.io 1.4.4

Sample code for you.

function get_clients_by_room(roomId, namespace) {
        io.of(namespace || "/").in(roomId).clients(function (error, clients) {
            if (error) { throw error; }
            console.log(clients[0]); // => [Anw2LatarvGVVXEIAAAD]
            console.log(io.sockets.sockets[clients[0]]); //socket detail
            return clients;
        });
    }

I think will help someone this code block.

I just discovered that there is a cleaner way to do your

new Thread(new Runnable() {
    public void run() {
        //Do whatever
    }
}).start();

(At least in Java 8), you can use a lambda expression to shorten it to:

new Thread(() -> {
    //Do whatever
}).start();

As simple as making a function in JS!

Yes, you are correct. If you are using a jQuery plugin, do not put the code in the controller. Instead create a directive and put the code that you would normally have inside the link function of the directive.

There are a couple of points in the documentation that you could take a look at. You can find them here:
Common Pitfalls

Using controllers correctly

Ensure that when you are referencing the script in your view, you refer it last - after the angularjs library, controllers, services and filters are referenced.

EDIT: Rather than using $(element), you can make use of angular.element(element) when using AngularJS with jQuery

Make sure the 'Use Exclude Settings and Ignore Files' cog is selected

Dan's assertion that 'delete' is very slow and the benchmark he posted were doubted. So I carried out the test myself in Chrome 59. It does seem that 'delete' is about 30 times slower:

var iterationsTotal = 10000000;  // 10 million
var o;
var t1 = Date.now(),t2;
for (let i=0; i<iterationsTotal; i++) {
   o = {a:1,b:2,c:3,d:4,e:5};
   delete o.a; delete o.b; delete o.c; delete o.d; delete o.e;
}
console.log ((t2=Date.now())-t1);  // 6135
for (let i=0; i<iterationsTotal; i++) {
   o = {a:1,b:2,c:3,d:4,e:5};
   o.a = o.b = o.c = o.d = o.e = undefined;
}
console.log (Date.now()-t2);  // 205

Note that I purposedly carried out more than one 'delete' operations in one loop cycle to minimize the effect caused by the other operations.

How about

sub foo()
  dim r As Range, rows As Long, i As Long
  Set r = ActiveSheet.Range("A1:Z50")
  rows = r.rows.Count
  For i = rows To 1 Step (-1)
    If WorksheetFunction.CountA(r.rows(i)) = 0 Then r.rows(i).Delete
  Next
End Sub

Try this

Option Explicit

Sub Sample()
    Dim i As Long
    Dim DelRange As Range

    On Error GoTo Whoa

    Application.ScreenUpdating = False

    For i = 1 To 50
        If Application.WorksheetFunction.CountA(Range("A" & i & ":" & "Z" & i)) = 0 Then
            If DelRange Is Nothing Then
                Set DelRange = Range("A" & i & ":" & "Z" & i)
            Else
                Set DelRange = Union(DelRange, Range("A" & i & ":" & "Z" & i))
            End If
        End If
    Next i

    If Not DelRange Is Nothing Then DelRange.Delete shift:=xlUp
LetsContinue:
    Application.ScreenUpdating = True

    Exit Sub
Whoa:
    MsgBox Err.Description
    Resume LetsContinue
End Sub

IF you want to delete the entire row then use this code

Option Explicit

Sub Sample()
    Dim i As Long
    Dim DelRange As Range

    On Error GoTo Whoa

    Application.ScreenUpdating = False

    For i = 1 To 50
        If Application.WorksheetFunction.CountA(Range("A" & i & ":" & "Z" & i)) = 0 Then
            If DelRange Is Nothing Then
                Set DelRange = Rows(i)
            Else
                Set DelRange = Union(DelRange, Rows(i))
            End If
        End If
    Next i

    If Not DelRange Is Nothing Then DelRange.Delete shift:=xlUp
LetsContinue:
    Application.ScreenUpdating = True

    Exit Sub
Whoa:
    MsgBox Err.Description
    Resume LetsContinue
End Sub

I had the same issue, The problem was the conflict between JQuery and Angular. Angular couldn't set the full JQuery library for itself. As JQLite is enough in most cases, I included Angular first in my web page and then I loaded Jquery. The error was gone then.

bootstrap.js is using jquery library so you need to add jquery library before bootstrap js.

so please add it jquery library like

Note : Please maintain order of js file. html page use top to bottom approach for compilation

<head>
    <link rel="stylesheet" href="http://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
    <script src="http://code.jquery.com/jquery-1.11.0.min.js"></script>
    <script src="http://netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
</head>

In my case, using IDEA, after remove the out direcory, then everything return to normal. I just don't know why, but it worked out.

$@ is same as $*, but each parameter is a quoted string, that is, the parameters are passed on intact, without interpretation or expansion. This means, among other things, that each parameter in the argument list is seen as a separate word.

Of course, "$@" should be quoted.

http://tldp.org/LDP/abs/html/internalvariables.html#ARGLIST

Hashtags at the end of the URL bring a visitor to the element with the ID: e.g.

http://stackoverflow.com/questions/8424785/link-to-a-section-of-a-webpage#answers 

Would bring you to where the DIV with the ID 'answers' begins. Also, you can use the name attribute in anchor tags, to create the same effect.

Resource

This gets parent if it is a div. Then it gets class.

var div = $(this).parent("div");
var _class = div.attr("class");

2 things.

• The query has to complete on sql server before the return value is sent.

• The results have to be captured and then finish executing before the return value gets to the object.

In English, finish the work and then retrieve the value.

this will not work:

                cmm.ExecuteReader();
                int i = (int) cmm.Parameters["@RETURN_VALUE"].Value;

This will work:

                        SqlDataReader reader = cmm.ExecuteReader();
                        reader.Close();

                        foreach (SqlParameter prm in cmd.Parameters)
                        {
                           Debug.WriteLine("");
                           Debug.WriteLine("Name " + prm.ParameterName);
                           Debug.WriteLine("Type " + prm.SqlDbType.ToString());
                           Debug.WriteLine("Size " + prm.Size.ToString());
                           Debug.WriteLine("Direction " + prm.Direction.ToString());
                           Debug.WriteLine("Value " + prm.Value);

                        }

if you are not sure check the value of the parameter before during and after the results have been processed by the reader.

import java.util.SortedSet;
import java.util.TreeSet;

import javax.swing.JOptionPane;
import javax.swing.JFrame;

public class Average {

    public static void main(String [] args) {

        String test1= JOptionPane.showInputDialog("Please input mark for test 1: ");

        String test2= JOptionPane.showInputDialog("Please input mark for test 2: ");

        String test3= JOptionPane.showInputDialog("Please input mark for test 3: ");

        int int1 = Integer.parseInt(test1);
        int int2 = Integer.parseInt(test2);
        int int3 = Integer.parseInt(test3);

        SortedSet<Integer> set = new TreeSet<>();
        set.add(int1);
        set.add(int2);
        set.add(int3);

        Integer [] intArray = set.toArray(new Integer[3]);
        JFrame frame = new JFrame();
        JOptionPane.showInternalMessageDialog(frame.getContentPane(), String.format("Result %f", (intArray[1] + intArray[2]) / 2.0));

    }

}

You could use replace to change NaN to 0:

import pandas as pd
import numpy as np

# for column
df['column'] = df['column'].replace(np.nan, 0)

# for whole dataframe
df = df.replace(np.nan, 0)

# inplace
df.replace(np.nan, 0, inplace=True)

Did you try using t.Text?

A couple of observations:

1. When you instantiate the second view controller, you are calling ViewControllerB(). If that view controller programmatically creates its view (which is unusual) that would be fine. But the presence of the IBOutlet suggests that this second view controller's scene was defined in Interface Builder, but by calling ViewControllerB(), you are not giving the storyboard a chance to instantiate that scene and hook up all the outlets. Thus the implicitly unwrapped UILabel is nil, resulting in your error message.

   Instead, you want to give your destination view controller a "storyboard id" in Interface Builder and then you can use instantiateViewController(withIdentifier:) to instantiate it (and hook up all of the IB outlets). In Swift 3:

   let controller = storyboard!.instantiateViewController(withIdentifier: "scene storyboard id")
   

   You can now access this controller's view.

2. But if you really want to do addSubview (i.e. you're not transitioning to the next scene), then you are engaging in a practice called "view controller containment". You do not just want to simply addSubview. You want to do some additional container view controller calls, e.g.:

   let controller = storyboard!.instantiateViewController(withIdentifier: "scene storyboard id")
   addChild(controller)
   controller.view.frame = ...  // or, better, turn off `translatesAutoresizingMaskIntoConstraints` and then define constraints for this subview
   view.addSubview(controller.view)
   controller.didMove(toParent: self)
   

   For more information about why this addChild (previously called addChildViewController) and didMove(toParent:) (previously called didMove(toParentViewController:)) are necessary, see WWDC 2011 video #102 - Implementing UIViewController Containment. In short, you need to ensure that your view controller hierarchy stays in sync with your view hierarchy, and these calls to addChild and didMove(toParent:) ensure this is the case.

   Also see Creating Custom Container View Controllers in the View Controller Programming Guide.

By the way, the above illustrates how to do this programmatically. It is actually much easier if you use the "container view" in Interface Builder.

Then you don't have to worry about any of these containment-related calls, and Interface Builder will take care of it for you.

For Swift 2 implementation, see previous revision of this answer.

tl;dr: Do not use unique_ptr's like that.

I believe you're making a terrible mess - for those who will need to read your code, maintain it, and probably those who need to use it.

1. Only take unique_ptr constructor parameters if you have publicly-exposed unique_ptr members.

unique_ptrs wrap raw pointers for ownership & lifetime management. They're great for localized use - not good, nor in fact intended, for interfacing. Wanna interface? Document your new class as ownership-taking, and let it get the raw resource; or perhaps, in the case of pointers, use owner<T*> as suggested in the Core Guidelines.

Only if the purpose of your class is to hold unique_ptr's, and have others use those unique_ptr's as such - only then is it reasonable for your constructor or methods to take them.

2. Don't expose the fact that you use unique_ptrs internally

Using unique_ptr for list nodes is very much an implementation detail. Actually, even the fact that you're letting users of your list-like mechanism just use the bare list node directly - constructing it themselves and giving it to you - is not a good idea IMHO. I should not need to form a new list-node-which-is-also-a-list to add something to your list - I should just pass the payload - by value, by const lvalue ref and/or by rvalue ref. Then you deal with it. And for splicing lists - again, value, const lvalue and/or rvalue.

You can make design of flutter splash screen same as other screens. The only change is use of timer. So you can display splash screen for specific amount of time.

import 'dart:async';
import 'package:flutter/material.dart';
 
class Splash extends StatefulWidget{
  @override
  State<StatefulWidget> createState() {
    // TODO: implement createState
    return SplashState();
  }
 
}
 
class SplashState extends State<Splash>{
  @override
  Widget build(BuildContext context) {
    // TODO: implement build
    return Scaffold(
 
    );
  }
 
  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    startTimer();
  }
 
  startTimer() async{
     Timer(Duration(seconds: 3), nextScreen);
  }
 
   void nextScreen(){
 
  }
 
}

import ‘package:flutter/material.dart’;
import ‘package:fluttersplashsample/splash.dart’;

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
    // This widget is the root of your application.
    @override
    Widget build(BuildContext context) {
          return MaterialApp(
              home: Splash(),
          );
     }
}

Since my tableView is full of all kinds of insets, this was the only thing that worked well:

Swift 3

if tableView.numberOfSections > 0 && tableView.numberOfRows(inSection: 0) > 0 {
  tableView.scrollToRow(at: IndexPath(row: 0, section: 0), at: .top, animated: true)
}

Swift 2

if tableView.numberOfSections > 0 && tableView.numberOfRowsInSection(0) > 0 {
  tableView.scrollToRowAtIndexPath(NSIndexPath(forRow: 0, inSection: 0), atScrollPosition: .Top, animated: true)
}

Swift

// corner radius
blueView.layer.cornerRadius = 10

// border
blueView.layer.borderWidth = 1.0
blueView.layer.borderColor = UIColor.black.cgColor

// shadow
blueView.layer.shadowColor = UIColor.black.cgColor
blueView.layer.shadowOffset = CGSize(width: 3, height: 3)
blueView.layer.shadowOpacity = 0.7
blueView.layer.shadowRadius = 4.0

Exploring the options

Problem 1: Shadow gets clipped off

What if there are sublayers or subviews (like an image) whose content we want to clip to the bounds of our view?

We can accomplish this with

blueView.layer.masksToBounds = true

(Alternatively, blueView.clipsToBounds = true gives the same result.)

But, oh no! The shadow was also clipped off because it's outside of the bounds! What to do? What to do?

Solution

Use separate views for the shadow and the border. The base view is transparent and has the shadow. The border view clips any other subcontent that it has to its borders.

// add the shadow to the base view
baseView.backgroundColor = UIColor.clear
baseView.layer.shadowColor = UIColor.black.cgColor
baseView.layer.shadowOffset = CGSize(width: 3, height: 3)
baseView.layer.shadowOpacity = 0.7
baseView.layer.shadowRadius = 4.0

// add the border to subview
let borderView = UIView()
borderView.frame = baseView.bounds
borderView.layer.cornerRadius = 10
borderView.layer.borderColor = UIColor.black.cgColor
borderView.layer.borderWidth = 1.0
borderView.layer.masksToBounds = true
baseView.addSubview(borderView)

// add any other subcontent that you want clipped
let otherSubContent = UIImageView()
otherSubContent.image = UIImage(named: "lion")
otherSubContent.frame = borderView.bounds
borderView.addSubview(otherSubContent)

This gives the following result:

Problem 2: Poor performance

Adding rounded corners and shadows can be a performance hit. You can improve performance by using a predefined path for the shadow and also specifying that it be rasterized. The following code can be added to the example above.

baseView.layer.shadowPath = UIBezierPath(roundedRect: baseView.bounds, cornerRadius: 10).cgPath
baseView.layer.shouldRasterize = true
baseView.layer.rasterizationScale = UIScreen.main.scale

See this post for more details. See here and here also.

This answer was tested with Swift 4 and Xcode 9.

CGSize expectedLabelSize = [yourString sizeWithFont:yourLabel.font 
                        constrainedToSize:maximumLabelSize 
                        lineBreakMode:yourLabel.lineBreakMode]; 

What is -[NSString sizeWithFont:forWidth:lineBreakMode:] good for?

this question might have your answer, it worked for me.

For 2014, I edited in this new version, based on the ultra-handy comment by Norbert below! This does everything. Cheers

// yourLabel is your UILabel.

float widthIs = 
 [self.yourLabel.text
  boundingRectWithSize:self.yourLabel.frame.size                                           
  options:NSStringDrawingUsesLineFragmentOrigin
  attributes:@{ NSFontAttributeName:self.yourLabel.font }
  context:nil]
   .size.width;

NSLog(@"the width of yourLabel is %f", widthIs);

use html5's new attribute srcdoc (srcdoc-polyfill) Docs

<iframe srcdoc="<html><body>Hello, <b>world</b>.</body></html>"></iframe>

Browser support - Tested in the following browsers:

Microsoft Internet Explorer
6, 7, 8, 9, 10, 11
Microsoft Edge
13, 14
Safari
4, 5.0, 5.1 ,6, 6.2, 7.1, 8, 9.1, 10
Google Chrome
14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24.0.1312.5 (beta), 25.0.1364.5 (dev), 55
Opera
11.1, 11.5, 11.6, 12.10, 12.11 (beta) , 42
Mozilla FireFox
3.0, 3.6, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 (beta), 50

JavaScript code using ng-controller:

$scope.checkkey = function (event) {
  alert(event.keyCode);  //this will show the ASCII value of the key pressed

}

In HTML:

<input type="text" ng-keypress="checkkey($event)" />

You can now place your checks and other conditions using the keyCode method.

TLDR: they are equivalent Error(x) === new Error(x).

// this:
const x = Error('I was created using a function call!');
????// has the same functionality as this:
const y = new Error('I was constructed via the "new" keyword!');

source: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error

throw and throw Error will are functionally equivalent. But when you catch them and serialize them to console.log they are not serialized exactly the same way:

throw 'Parameter is not a number!';
throw new Error('Parameter is not a number!');
throw Error('Parameter is not a number!');

Console.log(e) of the above will produce 2 different results:

Parameter is not a number!
Error: Parameter is not a number!
Error: Parameter is not a number!

There are a few operations you can only do with DI/SI (or their extended counterparts, if you didn't learn ASM in 1985). Among these are

REP STOSB
REP MOVSB
REP SCASB

Which are, respectively, operations for repeated (= mass) storing, loading and scanning. What you do is you set up SI and/or DI to point at one or both operands, perhaps put a count in CX and then let 'er rip. These are operations that work on a bunch of bytes at a time, and they kind of put the CPU in automatic. Because you're not explicitly coding loops, they do their thing more efficiently (usually) than a hand-coded loop.

Just in case you're wondering: Depending on how you set the operation up, repeated storing can be something simple like punching the value 0 into a large contiguous block of memory; MOVSB is used, I think, to copy data from one buffer (well, any bunch of bytes) to another; and SCASB is used to look for a byte that matches some search criterion (I'm not sure if it's only searching on equality, or what – you can look it up :) )

That's most of what those regs are for.

For anyone who may stumble across this old question ...

There is one thing that I think needs to be addressed.

~/.nanorc is used to apply your user specific settings to nano, so if you are editing files that require the use of sudo nano for permissions then this is not going to work.

When using sudo your custom user configuration files will not be loaded when opening a program, as you are not running the program from your account so none of your configuration changes in ~/.nanorc will be applied.

If this is the situation you find yourself in (wanting to run sudo nano and use your own config settings) then you have three options :

• using command line flags when running sudo nano
• editing the /root/.nanorc file
• editing the /etc/nanorc global config file

Keep in mind that /etc/nanorc is a global configuration file and as such it affects all users, which may or may not be a problem depending on whether you have a multi-user system.

Also, user config files will override the global one, so if you were to edit /etc/nanorc and ~/.nanorc with different settings, when you run nano it will load the settings from ~/.nanorc but if you run sudo nano then it will load the settings from /etc/nanorc.

Same goes for /root/.nanorc this will override /etc/nanorc when running sudo nano

Using flags is probably the best option unless you have a lot of options.

SELECT VARCHAR_FORMAT(CURRENT TIMESTAMP, 'YYYYMMDD')
FROM SYSIBM.SYSDUMMY1

Should work on both Mainframe and Linux/Unix/Windows DB2. Info Center entry for VARCHAR_FORMAT().

Following code might help you to play sound in a web page using javascript only. You can see further details at http://sourcecodemania.com/playing-sound-javascript-flash-player/

<script>
function getPlayer(pid) {
    var obj = document.getElementById(pid);
    if (obj.doPlay) return obj;
    for(i=0; i<obj.childNodes.length; i++) {
        var child = obj.childNodes[i];
        if (child.tagName == "EMBED") return child;
    }
}
function doPlay(fname) {
    var player=getPlayer("audio1");
    player.play(fname);
}
function doStop() {
    var player=getPlayer("audio1");
    player.doStop();
}
</script>

<form>
<input type="button" value="Play Sound" onClick="doPlay('texi.wav')">
<a href="#" onClick="doPlay('texi.wav')">[Play]</a>
<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"
    width="40"
    height="40"
    id="audio1"
    align="middle">
    <embed src="wavplayer.swf?h=20&w=20"
        bgcolor="#ffffff"
        width="40"
        height="40"
        allowScriptAccess="always"
        type="application/x-shockwave-flash"
        pluginspage="http://www.macromedia.com/go/getflashplayer"
    />
</object>

<input type="button" value="Stop Sound" onClick="doStop()">
</form>

Run these commands:

sudo apt-get update
sudo apt-get install build-essential libssl-dev
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash
source ~/.profile
nvm ls-remote
nvm install v9.10.1
nvm use v9.10.1
node -v

Here's how to force the target inside a click handler:

$('a#link_id').click(function() {
    $(this).attr('target', '_blank');
});

Which one of their Grids are you using? XtraGrid or AspXGrid? Here is a piece taken from one of my app using XtraGrid.

private void grdContactsView_RowClick(object sender, DevExpress.XtraGrid.Views.Grid.RowClickEventArgs e)
{
    _selectedContact = GetSelectedRow((DevExpress.XtraGrid.Views.Grid.GridView)sender);
}

private Contact GetSelectedRow(DevExpress.XtraGrid.Views.Grid.GridView view)
{
    return (Contact)view.GetRow(view.FocusedRowHandle);
}

My Grid have a list of Contact objects bound to it. Every time a row is clicked I load the selected row into _selectedContact. Hope this helps. You will find lots of information on using their controls buy visiting their support and documentation sites.

After a lot of digging around I finally ended up downloading the source code of the recovery section of Android. Turns out you can actually send commands to the recovery.

 * The arguments which may be supplied in the recovery.command file:
 *   --send_intent=anystring - write the text out to recovery.intent
 *   --update_package=path - verify install an OTA package file
 *   --wipe_data - erase user data (and cache), then reboot
 *   --wipe_cache - wipe cache (but not user data), then reboot
 *   --set_encrypted_filesystem=on|off - enables / diasables encrypted fs

Those are the commands you can use according to the one I found but that might be different for modded files. So using adb you can do this:

adb shell
recovery --wipe_data

Using --wipe_data seemed to do what I was looking for which was handy although I have not fully tested this as of yet.

EDIT:

For anyone still using this topic, these commands may change based on which recovery you are using. If you are using Clockword recovery, these commands should still work. You can find other commands in /cache/recovery/command

For more information please see here: https://github.com/CyanogenMod/android_bootable_recovery/blob/cm-10.2/recovery.c

You could use dots: ... in your function definition.

myfun <- function(a, b, ...){
  cat(a,b)
}

myfun(a=4,b=7,hello=3)

# 4 7

the best way to set corporate proxy with ntlm authentication is to use cntlm:

http://cntlm.sourceforge.net/

Install and configure in C:\Program Files\Cntlm\cntlm.ini By default cntlm, listens to 127.0.0.1:3128

In android device set a new APN with proxy host 10.0.2.2 and port 3128 10.0.2.2 is a special alias to your host loopback interface (127.0.0.1 on your development machine)

see also http://developer.android.com/tools/devices/emulator.html#emulatornetworking

Regards

assuming certain column names...

INSERT one

newToner = Toner(toner_id = 1,
                    toner_color = 'blue',
                    toner_hex = '#0F85FF')

dbsession.add(newToner)   
dbsession.commit()

INSERT multiple

newToner1 = Toner(toner_id = 1,
                    toner_color = 'blue',
                    toner_hex = '#0F85FF')

newToner2 = Toner(toner_id = 2,
                    toner_color = 'red',
                    toner_hex = '#F01731')

dbsession.add_all([newToner1, newToner2])   
dbsession.commit()

UPDATE

q = dbsession.query(Toner)
q = q.filter(Toner.toner_id==1)
record = q.one()
record.toner_color = 'Azure Radiance'

dbsession.commit()

or using a fancy one-liner using MERGE

record = dbsession.merge(Toner( **kwargs))

Removes all but the 10 latest (most recents) files

ls -t1 | head -n $(echo $(ls -1 | wc -l) - 10 | bc) | xargs rm

If less than 10 files no file is removed and you will have : error head: illegal line count -- 0

To count files with bash

One option that I haven't see mentioned so far is that (for my setup) the Developer Option 'Select USB Configuration' must be set to MTP (Media Transfer Protocol).

System: MacOS

Version: Python 3.6 w/ Anaconda

import os

rootpath = os.getcwd()

os.chdir(rootpath)

Add android:layout_centerInParent="true" to element which you want to center in the RelativeLayout

The easier way to only change the radio button is simply set selector for drawable right

<RadioButton
    ...
    android:button="@null"
    android:checked="false"
    android:drawableRight="@drawable/radio_button_selector" />

And the selector is:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/ic_checkbox_checked" android:state_checked="true" />
    <item android:drawable="@drawable/ic_checkbox_unchecked" android:state_checked="false" /></selector>

That's all

The shortcut command for --upgrade:

pip install Django --upgrade

Is:

pip install Django -U

If possible, add this to the main Apache configuration file. It is a lighter-weight solution, less processing required.

<VirtualHost 64.65.66.67>
        ServerName example.com
        Redirect permanent / http://www.example.com/
</VirtualHost>
<VirtualHost 64.65.66.67>
   ServerAdmin [email protected]
   ServerName www.example.com
   DocumentRoot /var/www/example
   .
   .
   . etc

So, the separate VirtualHost for "example.com" captures those requests and then permanently redirects them to your main VirtualHost. So there's no REGEX parsing with every request, and your client browsers will cache the redirect so they'll never (or rarely) request the "wrong" url again, saving you on server load.

Note, the trailing slash in Redirect permanent / http://www.example.com/. Without it, a redirect from example.com/asdf would redirect to http://www.example.comasdf instead of http://www.example.com/asdf.

This code checks if the number is odd or even in PHP. In the example $a is 2 and you get even number. If you need odd then change the $a value

$a=2;
if($a %2 == 0){
    echo "<h3>This Number is <b>$a</b> Even</h3>";
}else{
    echo "<h3>This Number is <b>$a</b> Odd</h3>";
}

Why are you using a List if you want to initialize it with a fixed value ? I can understand that -for the sake of performance- you want to give it an initial capacity, but isn't one of the advantages of a list over a regular array that it can grow when needed ?

When you do this:

List<int> = new List<int>(100);

You create a list whose capacity is 100 integers. This means that your List won't need to 'grow' until you add the 101th item. The underlying array of the list will be initialized with a length of 100.

If there is any chance that you will need to search for empty strings,

    a['Names'].str.contains('') 

will NOT work, as it will always return True.

Instead, use

    if '' in a["Names"].values

to accurately reflect whether or not a string is in a Series, including the edge case of searching for an empty string.

I'm quite fond of this solution myself:

ul {
    list-style-position: inside;
    list-style-type: disc;
    font-size: 12px;
    line-height: 1.4em;
    padding: 0 1em;
}

ul li {
    margin: 0 0 0 1em;
    padding: 0 0 0 1em;
    text-indent: -2em;
}

In my experience, most probably its happened with jquery version(using multiple version) conflicts, for sort out the issue we can use a no-conflict method like below.

jQuery.noConflict();
(function( $ ) {
  $(function() {
    // More code using $ as alias to jQuery
    $('button').click(function(){
        $('#modalID').modal('show');
    });
  });
})(jQuery);

import re
re.sub('<.*?>', '', string)
"i think mabe 124 + but I don't have a big experience it just how I see it in my eyes fun stuff"

The re.sub function takes a regular expresion and replace all the matches in the string with the second parameter. In this case, we are searching for all tags ('<.*?>') and replacing them with nothing ('').

The ? is used in re for non-greedy searches.

More about the re module.

import os
thisFile = "mysequence.fasta"
base = os.path.splitext(thisFile)[0]
os.rename(thisFile, base + ".aln")

Where thisFile = the absolute path of the file you are changing

public static final String YOUR_STRING_CONSTANT = "";

find -name "*Robert*" \( -name "*.pdf" -o -name "*.jpg" \)

The -o repreents an OR condition and you can add as many as you wish within the braces. So this says to find all files containing the word "Robert" anywhere in their names and whose names end in either "pdf" or "jpg".

Go to Tools > Options > Advanced "Tab"(?) > Encryption Tab

Click the "Validation" button, and uncheck the checkbox for checking validity

Be advised though that this is pretty unsecure as it leaves you wide open to accept any invalid certificate. I'd only do this if using the browser on an Intranet where the validity of the cert isn't a concern to you, or you aren't concerned in general.

Go to C:\wamp\alias. Open the file phpmyadmin.conf and add

Options Indexes FollowSymLinks MultiViews
AllowOverride all
Order Deny,Allow
Deny from all
Allow from 127.0.0.1
Allow from MACHINE_IP

using .removeAttr() on a boolean attribute such as checked, selected, or readonly would also set the corresponding named property to false.

Hence removed this checked attribute

$("#IdName option:checked").removeAttr("checked");

If you know the structure of the json that you're receiving then I'd suggest having a class structure that mirrors what you're receiving in json.

Then you can call its something like this...

AddressMap addressMap = JsonConvert.DeserializeObject<AddressMap>(json);

(Where json is a string containing the json in question)

If you don't know the format of the json you've receiving then it gets a bit more complicated and you'd probably need to manually parse it.

check out http://www.hanselman.com/blog/NuGetPackageOfTheWeek4DeserializingJSONWithJsonNET.aspx for more info

You can try this, see if it works for you.

Rather than choosing date from date picker, you can enable the date box using javascript & enter the required date, this would avoid excessive time required to traverse through all date elements till you reach one you require to select.

Code for from date

((JavascriptExecutor)driver).executeScript ("document.getElementById('fromDate').removeAttribute('readonly',0);"); // Enables the from date box

WebElement fromDateBox= driver.findElement(By.id("fromDate"));
fromDateBox.clear();
fromDateBox.sendKeys("8-Dec-2014"); //Enter date in required format

Code for to date

((JavascriptExecutor)driver).executeScript ("document.getElementById('toDate').removeAttribute('readonly',0);"); // Enables the from date box

WebElement toDateBox= driver.findElement(By.id("toDate"));
toDateBox.clear();
toDateBox.sendKeys("15-Dec-2014"); //Enter date in required format

For turning off line numbers, any of these commands will work:

1. :set nu!
2. :set nonu
3. :set number!
4. :set nonumber

use DECIMAL() or NUMERIC() as they are fixed precision and scale numbers.

SELECT fullName, 
       CAST(totalBal as DECIMAL(9,2)) _totalBal
FROM client_info 
ORDER BY _totalBal DESC

This seems a better solution to use if statement :

num = 55
if num <= 100 and num >= 1:
    print("OK")
else:
    print("NOPE")

For some reason, none of the other methods worked for me...So i tried this and worked. Hope it helps..

JFileChooser c= new JFileChooser();
c.showOpenDialog(c);
File write_file = c.getSelectedFile();
String Content = "Writing into file\n hi \n hello \n hola";
try 
{
    RandomAccessFile raf = new RandomAccessFile(write_file, "rw");
    long length = raf.length();
    System.out.println(length);
    raf.setLength(length + 1); //+ (integer value) for spacing
    raf.seek(raf.length());
    raf.writeBytes(Content);
    raf.close();
} 
catch (Exception e) {
    System.out.println(e);
}

Use Insert method of List<T>:

List.Insert Method (Int32, T): Inserts an element into the List at the specified index.

var names = new List<string> { "John", "Anna", "Monica" };
names.Insert(0, "Micheal"); // Insert to the first element

In case this is useful to anyone I had this same issue. I was bringing in a footer into a web page via jQuery. Inside that footer were some Google scripts for ads and retargeting. I had to move those scripts from the footer and place them directly in the page and that eliminated the notice.

Below is a working example code.

Please note you need to add a reference to Newtonsoft.Json.Linq

string url = "https://yourAPIurl";
WebRequest myReq = WebRequest.Create(url);
string credentials = "xxxxxxxxxxxxxxxxxxxxxxxx:yyyyyyyyyyyyyyyyyyyyyyyyyyyyyy";
CredentialCache mycache = new CredentialCache();
myReq.Headers["Authorization"] = "Basic " + Convert.ToBase64String(Encoding.ASCII.GetBytes(credentials));
WebResponse wr = myReq.GetResponse();
Stream receiveStream = wr.GetResponseStream();
StreamReader reader = new StreamReader(receiveStream, Encoding.UTF8);
string content = reader.ReadToEnd();
Console.WriteLine(content);
var json = "[" + content + "]"; // change this to array
var objects = JArray.Parse(json); // parse as array  
foreach (JObject o in objects.Children<JObject>())
{
    foreach (JProperty p in o.Properties())
    {
        string name = p.Name;
        string value = p.Value.ToString();
        Console.Write(name + ": " + value);
    }
}
Console.ReadLine();

Reference: TheDeveloperBlog.com

If you know about Environment variables and the system variable called path, consider that any version of any binary which comes sooner, will be used as default.

Look at the image below, I have 3 different python versions but python 3.8 will be used as default since it came sooner than the other two. (In case of mentioned image, sooner means higher!)

Here is my code:

html:

const upload = (file) => {_x000D_
    console.log(file);_x000D_
_x000D_
    _x000D_
_x000D_
    fetch('http://localhost:8080/files/uploadFile', { _x000D_
    method: 'POST',_x000D_
    // headers: {_x000D_
    //   //"Content-Disposition": "attachment; name='file'; filename='xml2.txt'",_x000D_
    //   "Content-Type": "multipart/form-data; boundary=BbC04y " //"multipart/mixed;boundary=gc0p4Jq0M2Yt08jU534c0p" //  ? // multipart/form-data _x000D_
    // },_x000D_
    body: file // This is your file object_x000D_
  }).then(_x000D_
    response => response.json() // if the response is a JSON object_x000D_
  ).then(_x000D_
    success => console.log(success) // Handle the success response object_x000D_
  ).catch(_x000D_
    error => console.log(error) // Handle the error response object_x000D_
  );_x000D_
_x000D_
  //cvForm.submit();_x000D_
};_x000D_
_x000D_
const onSelectFile = () => upload(uploadCvInput.files[0]);_x000D_
_x000D_
uploadCvInput.addEventListener('change', onSelectFile, false);

<form id="cv_form" style="display: none;"_x000D_
          enctype="multipart/form-data">_x000D_
          <input id="uploadCV" type="file" name="file"/>_x000D_
          <button type="submit" id="upload_btn">upload</button>_x000D_
</form>_x000D_
<ul class="dropdown-menu">_x000D_
<li class="nav-item"><a class="nav-link" href="#" id="upload">UPLOAD CV</a></li>_x000D_
<li class="nav-item"><a class="nav-link" href="#" id="download">DOWNLOAD CV</a></li>_x000D_
</ul>

An example where the dot notation fails

json = { 
   "value:":4,
   'help"':2,
   "hello'":32,
   "data+":2,
   "":'',
   "a[]":[ 
      2,
      2
   ]
};

// correct
console.log(json['value:']);
console.log(json['help"']);
console.log(json["help\""]);
console.log(json['hello\'']);
console.log(json["hello'"]);
console.log(json["data+"]);
console.log(json[""]);
console.log(json["a[]"]);

// wrong
console.log(json.value:);
console.log(json.help");
console.log(json.hello');
console.log(json.data+);
console.log(json.);
console.log(json.a[]);

The property names shouldn't interfere with the syntax rules of javascript for you to be able to access them as json.property_name

Sharing files between a docker container and the host system, or between separate containers is best accomplished using volumes.

Having your app running in another container is probably your best solution since it will ensure that your whole application can be well isolated and easily deployed. What you're trying to do sounds very close to the setup described in this excellent blog post, take a look!

Honestly, it's trivial to write a program to compare the performance:

#include <ctime>
#include <iostream>

namespace {
    class empty { }; // even empty classes take up 1 byte of space, minimum
}

int main()
{
    std::clock_t start = std::clock();
    for (int i = 0; i < 100000; ++i)
        empty e;
    std::clock_t duration = std::clock() - start;
    std::cout << "stack allocation took " << duration << " clock ticks\n";
    start = std::clock();
    for (int i = 0; i < 100000; ++i) {
        empty* e = new empty;
        delete e;
    };
    duration = std::clock() - start;
    std::cout << "heap allocation took " << duration << " clock ticks\n";
}

It's said that a foolish consistency is the hobgoblin of little minds. Apparently optimizing compilers are the hobgoblins of many programmers' minds. This discussion used to be at the bottom of the answer, but people apparently can't be bothered to read that far, so I'm moving it up here to avoid getting questions that I've already answered.

An optimizing compiler may notice that this code does nothing, and may optimize it all away. It is the optimizer's job to do stuff like that, and fighting the optimizer is a fool's errand.

I would recommend compiling this code with optimization turned off because there is no good way to fool every optimizer currently in use or that will be in use in the future.

Anybody who turns the optimizer on and then complains about fighting it should be subject to public ridicule.

If I cared about nanosecond precision I wouldn't use std::clock(). If I wanted to publish the results as a doctoral thesis I would make a bigger deal about this, and I would probably compare GCC, Tendra/Ten15, LLVM, Watcom, Borland, Visual C++, Digital Mars, ICC and other compilers. As it is, heap allocation takes hundreds of times longer than stack allocation, and I don't see anything useful about investigating the question any further.

The optimizer has a mission to get rid of the code I'm testing. I don't see any reason to tell the optimizer to run and then try to fool the optimizer into not actually optimizing. But if I saw value in doing that, I would do one or more of the following:

1. Add a data member to empty, and access that data member in the loop; but if I only ever read from the data member the optimizer can do constant folding and remove the loop; if I only ever write to the data member, the optimizer may skip all but the very last iteration of the loop. Additionally, the question wasn't "stack allocation and data access vs. heap allocation and data access."

2. Declare e volatile, but volatile is often compiled incorrectly (PDF).

3. Take the address of e inside the loop (and maybe assign it to a variable that is declared extern and defined in another file). But even in this case, the compiler may notice that -- on the stack at least -- e will always be allocated at the same memory address, and then do constant folding like in (1) above. I get all iterations of the loop, but the object is never actually allocated.

Beyond the obvious, this test is flawed in that it measures both allocation and deallocation, and the original question didn't ask about deallocation. Of course variables allocated on the stack are automatically deallocated at the end of their scope, so not calling delete would (1) skew the numbers (stack deallocation is included in the numbers about stack allocation, so it's only fair to measure heap deallocation) and (2) cause a pretty bad memory leak, unless we keep a reference to the new pointer and call delete after we've got our time measurement.

On my machine, using g++ 3.4.4 on Windows, I get "0 clock ticks" for both stack and heap allocation for anything less than 100000 allocations, and even then I get "0 clock ticks" for stack allocation and "15 clock ticks" for heap allocation. When I measure 10,000,000 allocations, stack allocation takes 31 clock ticks and heap allocation takes 1562 clock ticks.

Yes, an optimizing compiler may elide creating the empty objects. If I understand correctly, it may even elide the whole first loop. When I bumped up the iterations to 10,000,000 stack allocation took 31 clock ticks and heap allocation took 1562 clock ticks. I think it's safe to say that without telling g++ to optimize the executable, g++ did not elide the constructors.

In the years since I wrote this, the preference on Stack Overflow has been to post performance from optimized builds. In general, I think this is correct. However, I still think it's silly to ask the compiler to optimize code when you in fact do not want that code optimized. It strikes me as being very similar to paying extra for valet parking, but refusing to hand over the keys. In this particular case, I don't want the optimizer running.

Using a slightly modified version of the benchmark (to address the valid point that the original program didn't allocate something on the stack each time through the loop) and compiling without optimizations but linking to release libraries (to address the valid point that we don't want to include any slowdown caused by linking to debug libraries):

#include <cstdio>
#include <chrono>

namespace {
    void on_stack()
    {
        int i;
    }

    void on_heap()
    {
        int* i = new int;
        delete i;
    }
}

int main()
{
    auto begin = std::chrono::system_clock::now();
    for (int i = 0; i < 1000000000; ++i)
        on_stack();
    auto end = std::chrono::system_clock::now();

    std::printf("on_stack took %f seconds\n", std::chrono::duration<double>(end - begin).count());

    begin = std::chrono::system_clock::now();
    for (int i = 0; i < 1000000000; ++i)
        on_heap();
    end = std::chrono::system_clock::now();

    std::printf("on_heap took %f seconds\n", std::chrono::duration<double>(end - begin).count());
    return 0;
}

displays:

on_stack took 2.070003 seconds
on_heap took 57.980081 seconds

on my system when compiled with the command line cl foo.cc /Od /MT /EHsc.

You may not agree with my approach to getting a non-optimized build. That's fine: feel free modify the benchmark as much as you want. When I turn on optimization, I get:

on_stack took 0.000000 seconds
on_heap took 51.608723 seconds

Not because stack allocation is actually instantaneous but because any half-decent compiler can notice that on_stack doesn't do anything useful and can be optimized away. GCC on my Linux laptop also notices that on_heap doesn't do anything useful, and optimizes it away as well:

on_stack took 0.000003 seconds
on_heap took 0.000002 seconds

Using what others mentioned, I wanted this to be a quick & dandy function in my bash shell.

Create a file: ~/.functions

Add to it the contents:

getline() { line=$1 sed $line'q;d' $2 }

Then add this to your ~/.bash_profile:

source ~/.functions

Now when you open a new bash window, you can just call the function as so:

getline 441 myfile.txt

Sticky session means to route the requests of particular session to the same physical machine who served the first request for that session.

I wanted to do counts and sums over full resultset. I achieved grouping by all with GROUP BY 1=1.

shopList = [] 
maxLengthList = 6
while len(shopList) < maxLengthList:
    item = input("Enter your Item to the List: ")
    shopList.append(item)
    print shopList
print "That's your Shopping List"
print shopList

see this http://stleary.github.io/JSON-java/org/json/JSONObject.html#JSONObject-java.lang.String-

JSONObject

public JSONObject(java.lang.String source)
           throws JSONException

Construct a JSONObject from a source JSON text string. This is the most commonly used` JSONObject constructor.

Parameters:
    source - `A string beginning with { (left brace) and ending with } (right brace).` 
Throws:
    JSONException - If there is a syntax error in the source string or a duplicated key.

you try to use some thing like:

new JSONObject("{your string}")

By catching Throwable it includes things that subclass Error. You should generally not do that, except perhaps at the very highest "catch all" level of a thread where you want to log or otherwise handle absolutely everything that can go wrong. It would be more typical in a framework type application (for example an application server or a testing framework) where it can be running unknown code and should not be affected by anything that goes wrong with that code, as much as possible.

If you only want to suppress a warning in a single line of code, you can use the suppress warning specifier:

#pragma warning(suppress: 4101)
// here goes your single line of code where the warning occurs

For a single line of code, this works the same as writing the following:

#pragma warning(push)
#pragma warning(disable: 4101)
// here goes your code where the warning occurs
#pragma warning(pop)

Cross-browser rotate for any element. Works in IE7 and IE8. In IE7 it looks like not working in JSFiddle but in my project worked also in IE7

http://jsfiddle.net/RgX86/24/

var elementToRotate = $('#rotateMe');
var degreeOfRotation = 33;

var deg = degreeOfRotation;
var deg2radians = Math.PI * 2 / 360;
var rad = deg * deg2radians ;
var costheta = Math.cos(rad);
var sintheta = Math.sin(rad);

var m11 = costheta;
var m12 = -sintheta;
var m21 = sintheta;
var m22 = costheta;
var matrixValues = 'M11=' + m11 + ', M12='+ m12 +', M21='+ m21 +', M22='+ m22;

elementToRotate.css('-webkit-transform','rotate('+deg+'deg)')
    .css('-moz-transform','rotate('+deg+'deg)')
    .css('-ms-transform','rotate('+deg+'deg)')
    .css('transform','rotate('+deg+'deg)')
    .css('filter', 'progid:DXImageTransform.Microsoft.Matrix(sizingMethod=\'auto expand\','+matrixValues+')')
    .css('-ms-filter', 'progid:DXImageTransform.Microsoft.Matrix(SizingMethod=\'auto expand\','+matrixValues+')');

Edit 13/09/13 15:00 Wrapped in a nice and easy, chainable, jquery plugin.

Example of use

$.fn.rotateElement = function(angle) {
    var elementToRotate = this,
        deg = angle,
        deg2radians = Math.PI * 2 / 360,
        rad = deg * deg2radians ,
        costheta = Math.cos(rad),
        sintheta = Math.sin(rad),

        m11 = costheta,
        m12 = -sintheta,
        m21 = sintheta,
        m22 = costheta,
        matrixValues = 'M11=' + m11 + ', M12='+ m12 +', M21='+ m21 +', M22='+ m22;

    elementToRotate.css('-webkit-transform','rotate('+deg+'deg)')
        .css('-moz-transform','rotate('+deg+'deg)')
        .css('-ms-transform','rotate('+deg+'deg)')
        .css('transform','rotate('+deg+'deg)')
        .css('filter', 'progid:DXImageTransform.Microsoft.Matrix(sizingMethod=\'auto expand\','+matrixValues+')')
        .css('-ms-filter', 'progid:DXImageTransform.Microsoft.Matrix(SizingMethod=\'auto expand\','+matrixValues+')');
    return elementToRotate;
}

$element.rotateElement(15);

JSFiddle: http://jsfiddle.net/RgX86/175/

On newer browsers, you can use:

<input type="text" name="country_code" 
    pattern="[A-Za-z]" title="Three letter country code">

You can use regular expressions to restrict the input fields.

It's not an exact duplicate (so far as I can find), but this is a common problem.

display:block is what you need. but you should read the spec to understand why.

Even without importing swing, you can get the call in one, all be it long, string. Otherwise just use the swing import and simple call:

JOptionPane.showMessageDialog(null, "Thank you for using Java", "Yay, java", JOptionPane.PLAIN_MESSAGE);

Easy enough.

I am a bit late to answer this but none of the above worked for me.

This is what worked for me

@media only screen and (min-device-width: 768px) and (max-device-width: 1024px) {
    //your styles here
   }

You CAN use UTF-8 in the POST request, all you need is to specify the charset in your request.

You should use this request:

curl -X POST -H "Content-Type: application/x-www-form-urlencoded; charset=utf-8" --data-ascii "content=derinhält&date=asdf" http://myserverurl.com/api/v1/somemethod

You can learn some tutorials for JSP page direct access database (mysql) here

Notes:

• import sql tag library in jsp page

  <%@ taglib uri="http://java.sun.com/jsp/jstl/sql" prefix="sql"%>

• then set datasource on page

  <sql:setDataSource var="ds" driver="com.mysql.jdbc.Driver" url="jdbc:mysql://<yourhost>/<yourdb>" user="<user>" password="<password>"/>
  

• Now query what you want on page

  <sql:query dataSource="${ds}" var="result"> //ref  defined 'ds'
      SELECT * from <your-table>;
  </sql:query>
  

• Finally you can populate dropdowns on page using c:forEach tag to iterate result rows in select element

  <c:forEach var="row" items="${result.rows}"> //ref set var 'result' <option value='<c:out value="${row.key}"/>'><c:out value="${row.value}"/</option> </c:forEach>

You can add a simple css3 rule in the body or in specific div, use pointer-events: none; property.

There is a very simple script, written in plain Java, to download all fonts from a Google Web Font link (multiple fonts supported). It also downloads the CSS file and adapts it to local files. The user-agent can be adapted to get also other files than only WOFF2. See https://github.com/ssc-hrep3/google-font-download

The resulting files can easily be added to a build process (e.g. a webpack build like vue-webpack).

The selected answer is the good one, but is long, so you might not read the key point:

I got an error with the SSL when accesign www.example.com but it worked fine if I go to example.com

If it happens the same to you, probably your error is that in the DNS configuration you have set:

CNAME www.example.com --> example.com  (WRONG)

But, what you have to do is:

CNAME www.example.com --> username.github.io  (GOOD)

or

CNAME www.example.com --> organization.github.io  (GOOD)

That was my error

Use '›'

› -> single right angle quote. For single left angle quote, use ‹

You (still) can not choose the position of the column using ALTER TABLE: it can only be added to the end of the table. You can obviously select the columns in any order you want, so unless you are using SELECT * FROM column order shouldn't be a big deal.

If you really must have them in a particular order and you can't drop and recreate the table, then you might be able to drop and recreate columns instead:-

First copy the table

CREATE TABLE my_tab_temp AS SELECT * FROM my_tab;

Then drop columns that you want to be after the column you will insert

ALTER TABLE my_tab DROP COLUMN three;

Now add the new column (two in this example) and the ones you removed.

ALTER TABLE my_tab ADD (two NUMBER(2), three NUMBER(10));

Lastly add back the data for the re-created columns

UPDATE my_tab SET my_tab.three = (SELECT my_tab_temp.three FROM my_tab_temp WHERE my_tab.one = my_tab_temp.one);

Obviously your update will most likely be more complex and you'll have to handle indexes and constraints and won't be able to use this in some cases (LOB columns etc). Plus this is a pretty hideous way to do this - but the table will always exist and you'll end up with the columns in a order you want. But does column order really matter that much?

That's micro optimization and premature optimization, which are evil. Rather worry about readabililty and maintainability of the code in question. If there are more than two if/else blocks glued together or its size is unpredictable, then you may highly consider a switch statement.

Alternatively, you can also grab Polymorphism. First create some interface:

public interface Action { 
    void execute(String input);
}

And get hold of all implementations in some Map. You can do this either statically or dynamically:

Map<String, Action> actions = new HashMap<String, Action>();

Finally replace the if/else or switch by something like this (leaving trivial checks like nullpointers aside):

actions.get(name).execute(input);

It might be microslower than if/else or switch, but the code is at least far better maintainable.

As you're talking about webapplications, you can make use of HttpServletRequest#getPathInfo() as action key (eventually write some more code to split the last part of pathinfo away in a loop until an action is found). You can find here similar answers:

• Using a custom Servlet oriented framework, too many servlets, is this an issue
• Java Front Controller

If you're worrying about Java EE webapplication performance in general, then you may find this article useful as well. There are other areas which gives a much more performance gain than only (micro)optimizing the raw Java code.

<html>
<head >
<title>Welcome</title>    
<style type="text/css">
#maincontainer 
{   
top:0px;
padding-top:0;
margin:auto; position:relative;
width:950px;
height:100%;
}
  </style>
  </head>
<body>
 <div id="maincontainer ">
 </div>
</body>
</html>

Regarding to sampopes answer from Jun 6 '14 at 11:59:

I have insert a css style with font-size of 20px to display the excel data greater. In sampopes code the leading <tr> tags are missing, so i first output the headline and than the other tables lines within a loop.

function fnExcelReport()
{
    var tab_text = '<table border="1px" style="font-size:20px" ">';
    var textRange; 
    var j = 0;
    var tab = document.getElementById('DataTableId'); // id of table
    var lines = tab.rows.length;

    // the first headline of the table
    if (lines > 0) {
        tab_text = tab_text + '<tr bgcolor="#DFDFDF">' + tab.rows[0].innerHTML + '</tr>';
    }

    // table data lines, loop starting from 1
    for (j = 1 ; j < lines; j++) {     
        tab_text = tab_text + "<tr>" + tab.rows[j].innerHTML + "</tr>";
    }

    tab_text = tab_text + "</table>";
    tab_text = tab_text.replace(/<A[^>]*>|<\/A>/g, "");             //remove if u want links in your table
    tab_text = tab_text.replace(/<img[^>]*>/gi,"");                 // remove if u want images in your table
    tab_text = tab_text.replace(/<input[^>]*>|<\/input>/gi, "");    // reomves input params
    // console.log(tab_text); // aktivate so see the result (press F12 in browser)

    var ua = window.navigator.userAgent;
    var msie = ua.indexOf("MSIE "); 

     // if Internet Explorer
    if (msie > 0 || !!navigator.userAgent.match(/Trident.*rv\:11\./)) {
        txtArea1.document.open("txt/html","replace");
        txtArea1.document.write(tab_text);
        txtArea1.document.close();
        txtArea1.focus(); 
        sa = txtArea1.document.execCommand("SaveAs", true, "DataTableExport.xls");
    }  
    else // other browser not tested on IE 11
        sa = window.open('data:application/vnd.ms-excel,' + encodeURIComponent(tab_text));  

    return (sa);
}   

An empty string is a string with zero length or no character. Null is absence of data.

This is the correct answer:

<input type="number" step="0.01" min="-9999999999.99" max="9999999999.99"/>

Simple solution:

<iframe onload="this.style.height=this.contentWindow.document.body.scrollHeight + 'px';" ...></iframe>

This works when the iframe and parent window are in the same domain. It does not work when the two are in different domains.

Your class doesn't have a __init__(), so by the time it's instantiated, the attribute atoms is not present. You'd have to do C.setdata('something') so C.atoms becomes available.

>>> C = Residues()
>>> C.atoms.append('thing')

Traceback (most recent call last):
  File "<pyshell#84>", line 1, in <module>
    B.atoms.append('thing')
AttributeError: Residues instance has no attribute 'atoms'

>>> C.setdata('something')
>>> C.atoms.append('thing')   # now it works
>>> 

Unlike in languages like Java, where you know at compile time what attributes/member variables an object will have, in Python you can dynamically add attributes at runtime. This also implies instances of the same class can have different attributes.

To ensure you'll always have (unless you mess with it down the line, then it's your own fault) an atoms list you could add a constructor:

def __init__(self):
    self.atoms = []

I have developed an Excel VBA Macro for cutting and pasting any selection from Excel into SQL Server, creating a new table. The macro is great for quick and dirty table creations up to a few thousand rows and multiple columns (It can theoretically manage up to 200 columns). The macro attempts to automatically detect header names and assign the most appropriate datatype to each column (it handles varchar columns upto 1000 chars).

Recommended Setup procedure:

1. Make sure Excel is enabled to run macros. (File->Options->Trust Center->Trust Center Settings->Macro Settings->Enable all macros..)
2. Copy the VBA code below to the module associated with your personal workbook (So that the Macro will be available for all worksheets)
3. Assign an appropriate keystroke to the macro ( I have assigned Ctrl Shift X)
4. Save your personal workbook

Use of Macro

1. Select the cells in Excel (including column headers if they exist) to be transferred to SQL
2. Press the assigned keyword combination that you have assigned to run the macro
3. Follow the prompts. (Default table name is ##Table)
4. Paste the clipboard contents into a SSMS window and run the generated SQL code. BriFri 238

VBA Code:

Sub TransferToSQL()
'
' TransferToSQL Macro
' This macro prepares data for pasting into SQL Server and posts it to the clipboard for inserting into SSMS
' It attempts to automatically detect header rows and does a basic analysis of the first 15 rows to determine the most appropriate datatype to use handling text entries upto 1000 chars.
'
' Max Number of Columns: 200
'
' Keyboard Shortcut: Ctrl+Shift+X
'
' ver   Date    Reason
' ===   ====    ======

' 1.6   06/2012 Fixed bug that prevented auto exit if no selection made / auto exit if blank Tablename entered or 'cancel' button pressed
' 1.5   02/2012 made use of function fn_ColLetter to retrieve the Column Letter for a specified column
' 1.4   02/2012 Replaces any Tabs in text data to spaces to prevent Double quotes being output in final results
' 1.3   02/2012 Place the 'drop table if already exists' code into a separate batch to prevent errors when inserting new table with same name but different shape and > 100 rows
' 1.2   01/2012 If null dates encountered code to cast it as Null rather than '00-Jan-1900'
' 1.1   10/2011 Code to drop the table if already exists
' 1.0   03/2011 Created

Dim intLastRow As Long
Dim intlastColumn As Integer
Dim intRow As Long
Dim intDataStartRow As Long
Dim intColumn As Integer
Dim strKeyWord As String
Dim intPos As Integer
Dim strDataTypeLevel(4) As String
Dim strColumnHeader(200) As String
Dim strDataType(200) As String
Dim intRowCheck As Integer
Dim strFormula(20) As String
Dim intHasHeaderRow As Integer
Dim strCellRef As String
Dim intFormulaCount As Integer
Dim strSQLTableName As String
Dim strSQLTableName_Encap As String
Dim intdataTypelevel As Integer
Const strConstHeaderKeyword As String = "ID,URN,name,Title,Job,Company,Contact,Address,Post,Town,Email,Tele,phone,Area,Region,Business,Total,Month,Week,Year,"
Const intConstMaxBatchSize As Integer = 100
    Const intConstNumberRowsToAnalyse As Integer = 100
intHasHeaderRow = 0

strDataTypeLevel(1) = "VARCHAR(1000)"
strDataTypeLevel(2) = "FLOAT"
strDataTypeLevel(3) = "INTEGER"
strDataTypeLevel(4) = "DATETIME"



' Use current selection and paste to new temp worksheet

    Selection.Copy
    Workbooks.Add       ' add temp 'Working' Workbook
    ' Paste "Values Only" back into new temp workbook
    Range("A3").Select  ' Goto 3rd Row
    Selection.PasteSpecial Paste:=xlFormats, Operation:=xlNone, SkipBlanks:=False, Transpose:=False ' Copy Format of Selection
    Selection.PasteSpecial Paste:=xlValues, Operation:=xlNone, SkipBlanks:=False, Transpose:=False  ' Copy Values of Selection
    ActiveCell.SpecialCells(xlLastCell).Select  ' Goto last cell
    intLastRow = ActiveCell.Row
    intlastColumn = ActiveCell.Column


' Check to make sure that there are cells which are selected
If intLastRow = 3 And intlastColumn = 1 Then
    Application.DisplayAlerts = False       ' Temporarily switch off Display Alerts
    ActiveWindow.Close                      ' Delete newly created worksheet
    Application.DisplayAlerts = True        ' Switch display alerts back on
    MsgBox "*** Please Make selection before running macro - Terminating ***", vbOKOnly, "Transfer Data to SQL Server"
    Exit Sub
End If

' Prompt user for Name of SQL Server table
strSQLTableName = InputBox("SQL Server Table Name?", "Transfer Excel Data To SQL", "##Table")

' if blank table name entered or 'Cancel' selected then exit
If strSQLTableName = "" Then
    Application.DisplayAlerts = False       ' Temporarily switch off Display Alerts
    ActiveWindow.Close                      ' Delete newly created worksheet
    Application.DisplayAlerts = True        ' Switch display alerts back on
    Exit Sub
End If



' encapsulate tablename with square brackets if user has not already done so
strSQLTableName_Encap = Replace(Replace(Replace("[" & Replace(strSQLTableName, ".", "].[") & "]", "[]", ""), "[[", "["), "]]", "]")

' Try to determine if the First Row is a header row or contains data and if a header load names of Columns
Range("A3").Select
For intColumn = 1 To intlastColumn
    ' first check to see if the first row contains any pure numbers or pure dates
    If IsNumeric(ActiveCell.Value) Or IsDate(ActiveCell.Value) Then
    intHasHeaderRow = vbNo
    intDataStartRow = 3
    Exit For
    Else
    strColumnHeader(intColumn) = ActiveCell.Value
    ActiveCell.Offset(1, 0).Range("A1").Select  ' go to the row below
    If IsNumeric(ActiveCell.Value) Or IsDate(ActiveCell.Value) Then
        intHasHeaderRow = vbYes
        intDataStartRow = 4
    End If
    ActiveCell.Offset(-1, 0).Range("A1").Select  ' go back up to the first row
    If intHasHeaderRow = 0 Then     ' if still not determined if header exists: Look for header using keywords
        intPos = 1
        While intPos < Len(strConstHeaderKeyword) And intHasHeaderRow = 0
        strKeyWord = Mid$(strConstHeaderKeyword, intPos, InStr(intPos, strConstHeaderKeyword, ",") - intPos)
        If InStr(1, ActiveCell.Value, strKeyWord) > 0 Then
            intHasHeaderRow = vbYes
            intDataStartRow = 4
        End If
        intPos = InStr(intPos, strConstHeaderKeyword, ",") + 1
        Wend
    End If
    End If
    ActiveCell.Offset(0, 1).Range("A1").Select  ' Goto next column
Next intColumn

' If auto header row detection has failed ask the user to manually select
If intHasHeaderRow = 0 Then
    intHasHeaderRow = MsgBox("Does current selection have a header row?", vbYesNo, "Auto header row detection failure")
    If intHasHeaderRow = vbYes Then
    intDataStartRow = 4
    Else
    intDataStartRow = 3
    End If

End If




' *** Determine the Data Type of each Column ***

' Go thru each Column to find Data types
If intLastRow < intConstNumberRowsToAnalyse  Then             ' Check the first intConstNumberRowsToAnalyse  rows or to end of selection whichever is less
    intRowCheck = intLastRow
Else
    intRowCheck = intConstNumberRowsToAnalyse 
End If

For intColumn = 1 To intlastColumn
    intdataTypelevel = 5

    For intRow = intDataStartRow To intRowCheck
    Application.Goto Reference:="R" & CStr(intRow) & "C" & CStr(intColumn)
    If ActiveCell.Value = "" Then   ' ignore blank (null) values
    ElseIf IsDate(ActiveCell.Value) = True And Len(ActiveCell.Value) >= 8 Then
        If intdataTypelevel > 4 Then intdataTypelevel = 4
    ElseIf IsNumeric(ActiveCell.Value) = True And InStr(1, CStr(ActiveCell.Value), ".") = 0 And (Left(CStr(ActiveCell.Value), 1) <> "0" Or ActiveCell.Value = "0") And Len(ActiveCell.Value) < 10 Then
        If intdataTypelevel > 3 Then intdataTypelevel = 3
    ElseIf IsNumeric(ActiveCell.Value) = True And InStr(1, CStr(ActiveCell.Value), ".") >= 1 Then
        If intdataTypelevel > 2 Then intdataTypelevel = 2
    Else
        intdataTypelevel = 1
        Exit For
    End If
    Next intRow
    If intdataTypelevel = 5 Then intdataTypelevel = 1
    strDataType(intColumn) = strDataTypeLevel(intdataTypelevel)
Next intColumn


' *** Build up the SQL
intFormulaCount = 1
If intHasHeaderRow = vbYes Then     ' *** Header Row ***
    Application.Goto Reference:="R4" & "C" & CStr(intlastColumn + 1)    ' Goto next column in first data row of selection
    strFormula(intFormulaCount) = "= ""SELECT "
    For intColumn = 1 To intlastColumn
    If strDataType(intColumn) = "DATETIME" Then         ' Code to take Excel Dates back to text
        strCellRef = "Text(" & fn_ColLetter(intColumn) & "4,""dd-mmm-yyyy hh:mm:ss"")"
    ElseIf strDataType(intColumn) = "VARCHAR(1000)" Then
        strCellRef = "SUBSTITUTE(" & fn_ColLetter(intColumn) & "4,""'"",""''"")" ' Convert any single ' to double ''
    Else
        strCellRef = fn_ColLetter(intColumn) & "4"
    End If


    strFormula(intFormulaCount) = strFormula(intFormulaCount) & "CAST('""& " & strCellRef & " & ""' AS " & strDataType(intColumn) & ") AS [" & strColumnHeader(intColumn) & "]"
    If intColumn < intlastColumn Then
        strFormula(intFormulaCount) = strFormula(intFormulaCount) + ", "
    Else
        strFormula(intFormulaCount) = strFormula(intFormulaCount) + " UNION ALL """
    End If
    ' since each cell can only hold a maximum no. of chars if Formula string gets too big continue formula in adjacent cell
    If Len(strFormula(intFormulaCount)) > 700 And intColumn < intlastColumn Then
        strFormula(intFormulaCount) = strFormula(intFormulaCount) + """"
        intFormulaCount = intFormulaCount + 1
        strFormula(intFormulaCount) = "= """
    End If
    Next intColumn

 ' Assign the formula to the cell(s) just right of the selection
    For intColumn = 1 To intFormulaCount
    ActiveCell.Value = strFormula(intColumn)
    If intColumn < intFormulaCount Then ActiveCell.Offset(0, 1).Range("A1").Select  ' Goto next column
    Next intColumn


 ' Auto Fill the formula for the full length of the selection
    ActiveCell.Offset(0, -intFormulaCount + 1).Range("A1:" & fn_ColLetter(intFormulaCount) & "1").Select
    If intLastRow > 4 Then Selection.AutoFill Destination:=Range(fn_ColLetter(intlastColumn + 1) & "4:" & fn_ColLetter(intlastColumn + intFormulaCount) & CStr(intLastRow)), Type:=xlFillDefault

 ' Go to start row of data selection to add 'Select into' code
   ActiveCell.Value = "SELECT * INTO " & strSQLTableName_Encap & " FROM (" & ActiveCell.Value

 ' Go to cells above data to insert code for deleting old table with the same name in separate SQL batch
   ActiveCell.Offset(-1, 0).Range("A1").Select  ' go to the row above
   ActiveCell.Value = "GO"
   ActiveCell.Offset(-1, 0).Range("A1").Select  ' go to the row above
   If Left(strSQLTableName, 1) = "#" Then      ' temp table
       ActiveCell.Value = "IF OBJECT_ID('tempdb.." & strSQLTableName & "') IS NOT NULL DROP TABLE " & strSQLTableName_Encap
   Else
       ActiveCell.Value = "IF OBJECT_ID('" & strSQLTableName & "') IS NOT NULL DROP TABLE " & strSQLTableName_Encap
   End If



' For Big selections (i.e. several 100 or 1000 rows) SQL Server takes a very long time to do a multiple union - Split up the table creation into many inserts
    intRow = intConstMaxBatchSize + 4   ' add 4 to make sure 1st batch = Max Batch Size
    While intRow < intLastRow
    Application.Goto Reference:="R" & CStr(intRow - 1) & "C" & CStr(intlastColumn + intFormulaCount)  ' Goto Row before intRow and the last column in formula selection
    ActiveCell.Value = Replace(ActiveCell.Value, " UNION ALL ", " ) a") ' Remove last 'UNION ALL'

    Application.Goto Reference:="R" & CStr(intRow) & "C" & CStr(intlastColumn + 1)    ' Goto intRow and the first column in formula selection
    ActiveCell.Value = "INSERT " & strSQLTableName_Encap & " SELECT * FROM (" & ActiveCell.Value
    intRow = intRow + intConstMaxBatchSize   ' increment intRow by intConstMaxBatchSize
    Wend


    ' Delete the last 'UNION AlL' replacing it with brackets to mark the end of the last insert
    Application.Goto Reference:="R" & CStr(intLastRow) & "C" & CStr(intlastColumn + intFormulaCount)
    ActiveCell.Value = Replace(ActiveCell.Value, " UNION ALL ", " ) a")

    ' Select all the formula cells
    ActiveCell.Offset(-intLastRow + 2, 1 - intFormulaCount).Range("A1:" & fn_ColLetter(intFormulaCount + 1) & CStr(intLastRow - 1)).Select
Else    ' *** No Header Row ***
    Application.Goto Reference:="R3" & "C" & CStr(intlastColumn + 1)    ' Goto next column in first data row of selection
    strFormula(intFormulaCount) = "= ""SELECT "

    For intColumn = 1 To intlastColumn
    If strDataType(intColumn) = "DATETIME" Then
        strCellRef = "Text(" & fn_ColLetter(intColumn) & "3,""dd-mmm-yyyy hh:mm:ss"")"   ' Format Excel dates into a text Date format that SQL will pick up
    ElseIf strDataType(intColumn) = "VARCHAR(1000)" Then
        strCellRef = "SUBSTITUTE(" & fn_ColLetter(intColumn) & "3,""'"",""''"")"         ' Change all single ' to double ''
    Else
        strCellRef = fn_ColLetter(intColumn) & "3"
    End If

    ' Since no column headers: Name each column "Column001",Column002"..
    strFormula(intFormulaCount) = strFormula(intFormulaCount) & "CAST('""& " & strCellRef & " & ""' AS " & strDataType(intColumn) & ") AS [Column" & CStr(intColumn) & "]"
    If intColumn < intlastColumn Then
        strFormula(intFormulaCount) = strFormula(intFormulaCount) + ", "
    Else
        strFormula(intFormulaCount) = strFormula(intFormulaCount) + " UNION ALL """
    End If

    ' since each cell can only hold a maximum no. of chars if Formula string gets too big continue formula in adjacent cell
    If Len(strFormula(intFormulaCount)) > 700 And intColumn < intlastColumn Then
        strFormula(intFormulaCount) = strFormula(intFormulaCount) + """"
        intFormulaCount = intFormulaCount + 1
        strFormula(intFormulaCount) = "= """
    End If
    Next intColumn

    ' Assign the formula to the cell(s) just right of the selection
    For intColumn = 1 To intFormulaCount
    ActiveCell.Value = strFormula(intColumn)
    If intColumn < intFormulaCount Then ActiveCell.Offset(0, 1).Range("A1").Select  ' Goto next column
    Next intColumn

 ' Auto Fill the formula for the full length of the selection
    ActiveCell.Offset(0, -intFormulaCount + 1).Range("A1:" & fn_ColLetter(intFormulaCount) & "1").Select
    If intLastRow > 4 Then Selection.AutoFill Destination:=Range(fn_ColLetter(intlastColumn + 1) & "3:" & fn_ColLetter(intlastColumn + intFormulaCount) & CStr(intLastRow)), Type:=xlFillDefault

 ' Go to start row of data selection to add 'Select into' code
   ActiveCell.Value = "SELECT * INTO " & strSQLTableName_Encap & " FROM (" & ActiveCell.Value

 ' Go to cells above data to insert code for deleting old table with the same name in separate SQL batch
   ActiveCell.Offset(-1, 0).Range("A1").Select  ' go to the row above
   ActiveCell.Value = "GO"
   ActiveCell.Offset(-1, 0).Range("A1").Select  ' go to the row above
   If Left(strSQLTableName, 1) = "#" Then      ' temp table
       ActiveCell.Value = "IF OBJECT_ID('tempdb.." & strSQLTableName & "') IS NOT NULL DROP TABLE " & strSQLTableName_Encap
   Else
       ActiveCell.Value = "IF OBJECT_ID('" & strSQLTableName & "') IS NOT NULL DROP TABLE " & strSQLTableName_Encap
   End If

  ' For Big selections (i.e. serveral 100 or 1000 rows) SQL Server takes a very long time to do a multiple union - Split up the table creation into many inserts
   intRow = intConstMaxBatchSize + 3        ' add 3 to make sure 1st batch = Max Batch Size
    While intRow < intLastRow
    Application.Goto Reference:="R" & CStr(intRow - 1) & "C" & CStr(intlastColumn + intFormulaCount)  ' Goto Row before intRow and the last column in formula selection
    ActiveCell.Value = Replace(ActiveCell.Value, " UNION ALL ", " ) a") ' Remove last 'UNION ALL'

    Application.Goto Reference:="R" & CStr(intRow) & "C" & CStr(intlastColumn + 1)    ' Goto intRow and the first column in formula selection
    ActiveCell.Value = "INSERT " & strSQLTableName_Encap & " SELECT * FROM (" & ActiveCell.Value
    intRow = intRow + intConstMaxBatchSize   ' increment intRow by intConstMaxBatchSize
    Wend

    ' Delete the last 'UNION AlL'
    Application.Goto Reference:="R" & CStr(intLastRow) & "C" & CStr(intlastColumn + intFormulaCount)
    ActiveCell.Value = Replace(ActiveCell.Value, " UNION ALL ", " ) a")

    ' Select all the formula cells
    ActiveCell.Offset(-intLastRow + 1, 1 - intFormulaCount).Range("A1:" & fn_ColLetter(intFormulaCount + 1) & CStr(intLastRow)).Select
End If


' Final Selection to clipboard and Cleaning of data
Selection.Copy
Selection.PasteSpecial Paste:=xlValues, Operation:=xlNone, SkipBlanks:=False, Transpose:=False              ' Repaste "Values Only" back into cells
Selection.Replace What:="CAST('' AS", Replacement:="CAST(NULL AS", LookAt:=xlPart, SearchOrder:=xlByRows, MatchCase:=False  ' convert all blank cells to NULL
Selection.Replace What:="'00-Jan-1900 00:00:00'", Replacement:="NULL", LookAt:=xlPart, SearchOrder:=xlByRows, MatchCase:=False  ' convert all blank Date cells to NULL
Selection.Replace What:="'NULL'", Replacement:="NULL", LookAt:=xlPart, SearchOrder:=xlByRows, MatchCase:=False  ' convert all 'NULL' cells to NULL
Selection.Replace What:=vbTab, Replacement:=" ", LookAt:=xlPart, SearchOrder:=xlByRows, MatchCase:=False        ' Replace all Tabs in cells to Space to prevent Double Quotes occuring in the final paste text
Selection.Copy


MsgBox "SQL Code has been added to clipboard - Please Paste into SSMS window", vbOKOnly, "Transfer to SQL"

Application.DisplayAlerts = False       ' Temporarily switch off Display Alerts
ActiveWindow.Close                      ' Delete newly created worksheet
Application.DisplayAlerts = True        ' Switch display alerts back on



End Sub




Function fn_ColLetter(Col As Integer) As String

Dim strColLetter As String

If Col > 26 Then
    ' double letter columns
    strColLetter = Chr(Int((Col - 1) / 26) + 64) & _
        Chr(((Col - 1) Mod 26) + 65)
Else
    ' single letter columns
    strColLetter = Chr(Col + 64)
End If
fn_ColLetter = strColLetter
End Function

What I usually do is that I create a double image with both states, acting like kind of a two-frame film which I then use with as background for the original element so that the element has width / height set in pixels, resulting in showing only one half of the image. Then what the hover state defines is basically "move the film to show the other frame".

For example, imagine that the image has to be a gray Tux, that we need to change to colorful Tux on hover. And the "hosting" element is a span with id "tuxie".

1. I create 50 x 25 image with two Tuxes, one in color and other gray,
2. then assign the image as a background for a 25 x 25 span,
3. and finally set the hover to simply move the background 25px left.

The minimal code:

<style>
    #tuxie {
        width: 25px; height: 25px;
        background: url('images/tuxie.png') no-repeat left top;
    }
    #tuxie:hover { background-position: -25px 0px }
</style>

<div id="tuxie" />

and the image:

Advantages are:

• By putting both frames in one file, it's ensured that they are loaded at once. This avoids the ugly glitch on slower connections when the other frame never loads immediately, so first hover never works properly.

• It may be easier to manage your images this way since "paired" frames are never confused.

• With smart use of Javascript or CSS selector, one can extend this and include even more frames in one file.

  In theory you could put even multiple buttons in single file and govern their display by coordinates, although such approach could get quickly out of hand.

Note that this is built with background CSS property, so if you really need to use with <img />s, you must not set the src property since that overlaps the background. (Come to think that clever use of transparency here could lead to interesting results, but probably very dependent on quality of image as well as of the engine.).

I'm using this without any additional settings:

if (!$st->execute()) {
    print_r($st->errorInfo());
}

try this:

select convert(varchar, dob2, 101)
select convert(varchar, dob2, 102)
select convert(varchar, dob2, 103)
select convert(varchar, dob2, 104)
select convert(varchar, dob2, 105)
select convert(varchar, dob2, 106)
select convert(varchar, dob2, 107)
select convert(varchar, dob2, 108)
select convert(varchar, dob2, 109)
select convert(varchar, dob2, 110)
select convert(varchar, dob2, 111)
select convert(varchar, dob2, 112)
select convert(varchar, dob2, 113)

refernces: http://msdn.microsoft.com/en-us/library/ms187928.aspx

http://www.w3schools.com/sql/func_convert.asp

Try to delete the import line import com.your.package.name.app.R, then, any resource calls such as mView= (View) mView.findViewById(R.id.resource_name); will highlight the 'R' with an error, a 'Quick fix' will prompt you to import R, and there will be at least two options:

• android.R
• your.package.name.R

Select the R corresponding to your package name, and you should be good to go. Hope that helps.

MySQL: ERROR 1040: Too many connections

This basically tells that MySQL handles the maximum number of connections simultaneously and by default it handles 100 connections simultaneously.

These following reasons cause MySQL to run out connections.

1. Slow Queries

2. Data Storage Techniques

3. Bad MySQL configuration

I was able to overcome this issues by doing the followings.

Open MySQL command line tool and type,

show variables like "max_connections";

This will return you something like this.

+-----------------+-------+
| Variable_name   | Value |
+-----------------+-------+
| max_connections | 100   |
+-----------------+-------+

You can change the setting to e.g. 200 by issuing the following command without having to restart the MySQL server.

set global max_connections = 200;

Now when you restart MySQL the next time it will use this setting instead of the default.

Keep in mind that increase of the number of connections will increase the amount of RAM required for MySQL to run.

Update for everybody coming to check why tensorflow.keras is not visible in PyCharm.

Starting from TensorFlow 2.0, only PyCharm versions > 2019.3 are able to recognise tensorflow and keras inside tensorflow (tensorflow.keras) properly.

Also, it is recommended(by Francois Chollet) that everybody switches to tensorflow.keras in place of plain keras.

You have mostly the right idea, it's just the sending of the form that is wrong. The form belongs in the body of the request.

req, err := http.NewRequest("POST", url, strings.NewReader(form.Encode()))

Using YYYY-MM-DD hh:mm:ss format :

var date = new Date('2011-06-29T16:52:48+00:00');
date.toString() // "Wed Jun 29 2011 09:52:48 GMT-0700 (PDT)"

For converting from the YYYY-MM-DD hh:mm:ss format, make sure your date follow the ISO 8601 format.

Year: 
    YYYY (eg 1997)    
Year and month: 
    YYYY-MM (eg 1997-07)
Complete date: 
    YYYY-MM-DD (eg 1997-07-16)
Complete date plus hours and minutes:
    YYYY-MM-DDThh:mmTZD (eg 1997-07-16T19:20+01:00)    
Complete date plus   hours, minutes and seconds:
    YYYY-MM-DDThh:mm:ssTZD (eg 1997-07-16T19:20:30+01:00)    
Complete date plus hours, minutes, seconds and a decimal fraction of a second
    YYYY-MM-DDThh:mm:ss.sTZD (eg 1997-07-16T19:20:30.45+01:00) where:

YYYY = four-digit year
MM   = two-digit month (01=January, etc.)
DD   = two-digit day of month (01 through 31)
hh   = two digits of hour (00 through 23) (am/pm NOT allowed)
mm   = two digits of minute (00 through 59)
ss   = two digits of second (00 through 59)
s    = one or more digits representing a decimal fraction of a second
TZD  = time zone designator (Z or +hh:mm or -hh:mm)

Important things to note

1. You must separate the date and the time by a T, a space will not work in some browsers
2. You must set the timezone using this format +hh:mm, using a string for a timezone (ex. : 'UTC') will not work in many browsers. +hh:mm represent the offset from the UTC timezone.

Try this

After selecting a block of text, press Shift+i or capital I.

Lowercase i will not work.

Then type the things you want and finally to apply it to all lines, press Esc twice.

If this doesn't work...

Check if you have +visualextra enabled in your version of Vim.

You can do this by typing in :ver and scrolling through the list of features. (You might want to copy and paste it into a buffer and do incremental search because the format is odd.)

Enabling it is outside the scope of this question but I'm sure you can find it somewhere.

This is how I implement singleton in my projects

Inspired from flutter firebase => FirebaseFirestore.instance.collection('collectionName')

class FooAPI {
  foo() {
    // some async func to api
  }
}

class SingletonService {
  FooAPI _fooAPI;

  static final SingletonService _instance = SingletonService._internal();

  static SingletonService instance = SingletonService();

  factory SingletonService() {
    return _instance;
  }

  SingletonService._internal() {
    // TODO: add init logic if needed
    // FOR EXAMPLE API parameters
  }

  void foo() async {
    await _fooAPI.foo();
  }
}

void main(){
  SingletonService.instance.foo();
}

example from my project

class FirebaseLessonRepository implements LessonRepository {
  FirebaseLessonRepository._internal();

  static final _instance = FirebaseLessonRepository._internal();

  static final instance = FirebaseLessonRepository();

  factory FirebaseLessonRepository() => _instance;

  var lessonsCollection = fb.firestore().collection('lessons');
  
  // ... other code for crud etc ...
}

// then in my widgets
FirebaseLessonRepository.instance.someMethod(someParams);

I prefer to use \c at the end of the search string:

/copyright\c

EventHandler handler = (s, e) => MessageBox.Show("Woho");

button.Click += handler;
button.Click -= handler;

INSERT INTO AM_PROGRAM_TUNING_EVENT_TMP1 
VALUES(TO_DATE('2012-03-28 11:10:00','yyyy/mm/dd hh24:mi:ss'));

http://www.sqlfiddle.com/#!4/22115/1

You can use boost::posix_time::time_duration to get the time range. E.g like this

boost::posix_time::time_duration diff = tick - now;
diff.total_milliseconds();

And to get a higher resolution you can change the clock you are using. For example to the boost::posix_time::microsec_clock, though this can be OS dependent. On Windows, for example, boost::posix_time::microsecond_clock has milisecond resolution, not microsecond.

An example which is a little dependent on the hardware.

int main(int argc, char* argv[])
{
    boost::posix_time::ptime t1 = boost::posix_time::second_clock::local_time();
    boost::this_thread::sleep(boost::posix_time::millisec(500));
    boost::posix_time::ptime t2 = boost::posix_time::second_clock::local_time();
    boost::posix_time::time_duration diff = t2 - t1;
    std::cout << diff.total_milliseconds() << std::endl;

    boost::posix_time::ptime mst1 = boost::posix_time::microsec_clock::local_time();
    boost::this_thread::sleep(boost::posix_time::millisec(500));
    boost::posix_time::ptime mst2 = boost::posix_time::microsec_clock::local_time();
    boost::posix_time::time_duration msdiff = mst2 - mst1;
    std::cout << msdiff.total_milliseconds() << std::endl;
    return 0;
}

On my win7 machine. The first out is either 0 or 1000. Second resolution. The second one is nearly always 500, because of the higher resolution of the clock. I hope that help a little.

Try this on Debian/Ubuntu:

sudo apt-get install python-mechanize

If you haven't already committed your changes, just use git checkout to move to the new branch and then commit them normally - changes to files are not tied to a particular branch until you commit them.

If you have already committed your changes:

1. Type git log and remember the SHA of the commit you want to move.
2. Check out the branch you want to move the commit to.
3. Type git cherry-pick SHA substituting the SHA from above.
4. Switch back to your original branch.
5. Use git reset HEAD~1 to reset back before your wrong-branch commit.

cherry-pick takes a given commit and applies it to the currently checked-out head, thus allowing you to copy the commit over to a new branch.

A little quickie for template tags:

@register.filter 
def pdb(element):
    import pdb; pdb.set_trace()
    return element

Now, inside a template you can do {{ template_var|pdb }} and enter a pdb session (given you're running the local devel server) where you can inspect element to your heart's content.

It's a very nice way to see what's happened to your object when it arrives at the template.

You can use opendir and readdir to read directory entries and unlink to delete them.

If your using a new version of larval 7 >= you can use from your homested directory vagrant provision

Microsoft's answer to backing up all user databases on SQL Express is here:

The process is: copy, paste, and execute their code (see below. I've commented some oddly non-commented lines at the top) as a query on your database server. That means you should first install the SQL Server Management Studio (or otherwise connect to your database server with SSMS). This code execution will create a stored procedure on your database server.

Create a batch file to execute the stored procedure, then use Task Scheduler to schedule a periodic (e.g. nightly) run of this batch file. My code (that works) is a slightly modified version of their first example:

sqlcmd -S .\SQLEXPRESS -E -Q "EXEC sp_BackupDatabases @backupLocation='E:\SQLBackups\', @backupType='F'" 

This worked for me, and I like it. Each time you run it, new backup files are created. You'll need to devise a method of deleting old backup files on a routine basis. I already have a routine that does that sort of thing, so I'll keep a couple of days' worth of backups on disk (long enough for them to get backed up by my normal backup routine), then I'll delete them. In other words, I'll always have a few days' worth of backups on hand without having to restore from my backup system.

I'll paste Microsoft's stored procedure creation script below:

--// Copyright © Microsoft Corporation.  All Rights Reserved.
--// This code released under the terms of the
--// Microsoft Public License (MS-PL, http://opensource.org/licenses/ms-pl.html.)

USE [master] 
GO 

/****** Object:  StoredProcedure [dbo].[sp_BackupDatabases] ******/ 

SET ANSI_NULLS ON 
GO 

SET QUOTED_IDENTIFIER ON 
GO 

 
-- ============================================= 
-- Author: Microsoft 
-- Create date: 2010-02-06
-- Description: Backup Databases for SQLExpress
-- Parameter1: databaseName 
-- Parameter2: backupType F=full, D=differential, L=log
-- Parameter3: backup file location
-- =============================================

CREATE PROCEDURE [dbo].[sp_BackupDatabases]  
            @databaseName sysname = null,
            @backupType CHAR(1),
            @backupLocation nvarchar(200) 
AS 

       SET NOCOUNT ON; 

            DECLARE @DBs TABLE
            (
                  ID int IDENTITY PRIMARY KEY,
                  DBNAME nvarchar(500)
            )
           
             -- Pick out only databases which are online in case ALL databases are chosen to be backed up

             -- If specific database is chosen to be backed up only pick that out from @DBs

            INSERT INTO @DBs (DBNAME)
            SELECT Name FROM master.sys.databases
            where state=0
            AND name=@DatabaseName
            OR @DatabaseName IS NULL
            ORDER BY Name

 
           -- Filter out databases which do not need to backed up
 
           IF @backupType='F'
                  BEGIN
                  DELETE @DBs where DBNAME IN ('tempdb','Northwind','pubs','AdventureWorks')
                  END
            ELSE IF @backupType='D'
                  BEGIN
                  DELETE @DBs where DBNAME IN ('tempdb','Northwind','pubs','master','AdventureWorks')
                  END
            ELSE IF @backupType='L'
                  BEGIN
                  DELETE @DBs where DBNAME IN ('tempdb','Northwind','pubs','master','AdventureWorks')
                  END
            ELSE
                  BEGIN
                  RETURN
                  END
           

            -- Declare variables

            DECLARE @BackupName varchar(100)
            DECLARE @BackupFile varchar(100)
            DECLARE @DBNAME varchar(300)
            DECLARE @sqlCommand NVARCHAR(1000) 
        DECLARE @dateTime NVARCHAR(20)
            DECLARE @Loop int                  
                       
            -- Loop through the databases one by one

            SELECT @Loop = min(ID) FROM @DBs
       WHILE @Loop IS NOT NULL
      BEGIN
 
-- Database Names have to be in [dbname] format since some have - or _ in their name

      SET @DBNAME = '['+(SELECT DBNAME FROM @DBs WHERE ID = @Loop)+']'


-- Set the current date and time n yyyyhhmmss format

      SET @dateTime = REPLACE(CONVERT(VARCHAR, GETDATE(),101),'/','') + '_' +  REPLACE(CONVERT(VARCHAR, GETDATE(),108),':','')  
 

-- Create backup filename in path\filename.extension format for full,diff and log backups

      IF @backupType = 'F'
            SET @BackupFile = @backupLocation+REPLACE(REPLACE(@DBNAME, '[',''),']','')+ '_FULL_'+ @dateTime+ '.BAK'
      ELSE IF @backupType = 'D'
            SET @BackupFile = @backupLocation+REPLACE(REPLACE(@DBNAME, '[',''),']','')+ '_DIFF_'+ @dateTime+ '.BAK'
      ELSE IF @backupType = 'L'
            SET @BackupFile = @backupLocation+REPLACE(REPLACE(@DBNAME, '[',''),']','')+ '_LOG_'+ @dateTime+ '.TRN'
 

-- Provide the backup a name for storing in the media

      IF @backupType = 'F'
            SET @BackupName = REPLACE(REPLACE(@DBNAME,'[',''),']','') +' full backup for '+ @dateTime

      IF @backupType = 'D'
            SET @BackupName = REPLACE(REPLACE(@DBNAME,'[',''),']','') +' differential backup for '+ @dateTime

      IF @backupType = 'L'
            SET @BackupName = REPLACE(REPLACE(@DBNAME,'[',''),']','') +' log backup for '+ @dateTime


-- Generate the dynamic SQL command to be executed

       IF @backupType = 'F' 
                  BEGIN
               SET @sqlCommand = 'BACKUP DATABASE ' +@DBNAME+  ' TO DISK = '''+@BackupFile+ ''' WITH INIT, NAME= ''' +@BackupName+''', NOSKIP, NOFORMAT'
                  END

       IF @backupType = 'D'
                  BEGIN
               SET @sqlCommand = 'BACKUP DATABASE ' +@DBNAME+  ' TO DISK = '''+@BackupFile+ ''' WITH DIFFERENTIAL, INIT, NAME= ''' +@BackupName+''', NOSKIP, NOFORMAT'        
                  END

       IF @backupType = 'L' 
                  BEGIN
               SET @sqlCommand = 'BACKUP LOG ' +@DBNAME+  ' TO DISK = '''+@BackupFile+ ''' WITH INIT, NAME= ''' +@BackupName+''', NOSKIP, NOFORMAT'        
                  END
 

-- Execute the generated SQL command

       EXEC(@sqlCommand)

 
-- Goto the next database

SELECT @Loop = min(ID) FROM @DBs where ID>@Loop
 

END?

An artifact is a file, usually a JAR, that gets deployed to a Maven repository.

A Maven build produces one or more artifacts, such as a compiled JAR and a "sources" JAR.

Each artifact has a group ID (usually a reversed domain name, like com.example.foo), an artifact ID (just a name), and a version string. The three together uniquely identify the artifact.

A project's dependencies are specified as artifacts.

The basic answer to the question in the title is eval(as.symbol(variable_name_as_string)) as Josh O'Brien uses. e.g.

var.name = "x"
assign(var.name, 5)
eval(as.symbol(var.name)) # outputs 5

Or more simply:

get(var.name) # 5

If someone is looking for an alternative for old java versions, you can try this one I wrote:

/**
 * Strong typed Lambda to return NULL or DEFAULT VALUES instead of runtime errors. 
 * if you override the defaultValue method, if the execution result was null it will be used in place
 * 
 * 
 * Sample:
 * 
 * It won't throw a NullPointerException but null.
 * <pre>
 * {@code
 *  new RuntimeExceptionHandlerLambda<String> () {
 *      @Override
 *      public String evaluate() {
 *          String x = null;
 *          return x.trim();
 *      }  
 *  }.get();
 * }
 * <pre>
 * 
 * 
 * @author Robson_Farias
 *
 */

public abstract class RuntimeExceptionHandlerLambda<T> {

    private T result;

    private RuntimeException exception;

    public abstract T evaluate();

    public RuntimeException getException() {
        return exception;
    }

    public boolean hasException() {
        return exception != null;
    }

    public T defaultValue() {
        return result;
    }

    public T get() {
        try {
            result = evaluate();
        } catch (RuntimeException runtimeException) {
            exception = runtimeException;
        }
        return result == null ? defaultValue() : result;
    }

}

It works fine for me...

$(document).ready(function() {
        var date = new Date();
        var today = new Date(date.getFullYear(), date.getMonth(), date.getDate());

        $('#datepicker1').datepicker({
            format: 'dd-mm-yyyy',
            orientation: 'bottom'
        });

        $('#datepicker1').datepicker('setDate', today);

    });

Keep away from QuickSort - its very inefficient for pre-sorted data. Insertion sort handles almost sorted data well by moving as few values as possible.

The accepted answer will return all the parent nodes too. To get only the actual nodes with ABC even if the string is after
:

//*[text()[contains(.,'ABC')]]/text()[contains(.,"ABC")]

It's possible to pass a small script to some interpreters, like Python. An easy way to do so using Ruby and its YAML library is the following:

$ RUBY_SCRIPT="data = YAML::load(STDIN.read); puts data['a']; puts data['b']"
$ echo -e '---\na: 1234\nb: 4321' | ruby -ryaml -e "$RUBY_SCRIPT"
1234
4321

, wheredata is a hash (or array) with the values from yaml.

As a bonus, it'll parse Jekyll's front matter just fine.

ruby -ryaml -e "puts YAML::load(open(ARGV.first).read)['tags']" example.md

function leapYear(year)
{
  return ((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0);
}

I created an extension method (gosh I wish Java had these) called IsEmpty as follows:

public static bool IsEmpty(this DataRow row)
{
    return row == null || row.ItemArray.All(i => i is DBNull);
}

The other answers here are correct. I just felt mine lent brevity in its succinct use of Linq to Objects. BTW, this is really useful in conjunction with Excel parsing since users may tack on a row down the page (thousands of lines) with no regard to how that affects parsing the data.

In the same class, I put any other helpers I found useful, like parsers so that if the field contains text that you know should be a number, you can parse it fluently. Minor pro tip for anyone new to the idea. (Anyone at SO, really? Nah!)

With that in mind, here is an enhanced version:

public static bool IsEmpty(this DataRow row)
{
    return row == null || row.ItemArray.All(i => i.IsNullEquivalent());
}

public static bool IsNullEquivalent(this object value)
{
    return value == null
           || value is DBNull
           || string.IsNullOrWhiteSpace(value.ToString());
}

Now you have another useful helper, IsNullEquivalent which can be used in this context and any other, too. You could extend this to include things like "n/a" or "TBD" if you know that your data has placeholders like that.

When you create an implicit intent, the Android system finds the appropriate component to start by comparing the contents of the intent to the intent filters declared in the manifest file of other apps on the device. If the intent matches an intent filter, the system starts that component and delivers it the Intent object. If multiple intent filters are compatible, the system displays a dialog so the user can pick which app to use.

An intent filter is an expression in an app's manifest file that specifies the type of intents that the component would like to receive. For instance, by declaring an intent filter for an activity, you make it possible for other apps to directly start your activity with a certain kind of intent. Likewise, if you do not declare any intent filters for an activity, then it can be started only with an explicit intent.

According: Intents and Intent Filters

If you already have Visual Studio Build Tools installed but you're still getting that error, then you may need to "Modify" your installation to include the Visual C++ build tools.

To do that:

1. Open up the Visual Studio Installer (you can search for it in the Start Menu if needed).

2. Find Visual Studio Build Tools and click "Modify":

3. Add a checkmark to Visual C++ build tools and then click "Modify" in the bottom right to install them:

After the C++ tools finish installing, run the pip command again and it should work.

<v-layout justify-center>
  <v-card-actions>
    <v-btn primary>
     <span>SignUp</span>
    </v-btn>`enter code here`
  </v-card-actions>
</v-layout>

You can use site https://regex101.com/ for building your own specific pattern for some country:

For example, Poland:

-pattern = xxxxxxxxx OR xxx-xxx-xxx OR xxx xxx xxx 
-regexp ="^\d{9}|^\d{3}-\d{3}-\d{3}|^\d{3}\s\d{3}\s\d{3}"

The example code here http://msdn.microsoft.com/en-us/library/system.net.sockets.socket.connected.aspx shows how to determine whether the Socket is still connected without sending any data.

If you called Socket.BeginReceive() on the server program and then the client closed the connection "gracefully", your receive callback will be called and EndReceive() will return 0 bytes. These 0 bytes mean that the client "may" have disconnected. You can then use the technique shown in the MSDN example code to determine for sure whether the connection was closed.

A POST request can include a query string, however normally it doesn't - a standard HTML form with a POST action will not normally include a query string for example.

Just set all the selected time unit's displayFormat to MMM DD

options: {
  scales: {
    xAxes: [{
      type: 'time',
      time: {
        displayFormats: {
           'millisecond': 'MMM DD',
           'second': 'MMM DD',
           'minute': 'MMM DD',
           'hour': 'MMM DD',
           'day': 'MMM DD',
           'week': 'MMM DD',
           'month': 'MMM DD',
           'quarter': 'MMM DD',
           'year': 'MMM DD',
        }
        ...

Notice that I've set all the unit's display format to MMM DD. A better way, if you have control over the range of your data and the chart size, would be force a unit, like so

options: {
  scales: {
    xAxes: [{
      type: 'time',
      time: {
        unit: 'day',
        unitStepSize: 1,
        displayFormats: {
           'day': 'MMM DD'
        }
        ...

Fiddle - http://jsfiddle.net/prfd1m8q/

These are the two options I managed to build, not having the luxury of working with var type, nor with additional variables on the line:

string f = "aS.".Substring(0, "aS.".IndexOf("S"));
Console.WriteLine(f);

string s = "aS.".Split("S".ToCharArray(),StringSplitOptions.RemoveEmptyEntries)[0];
Console.WriteLine(s);

This is what it gets:

The settings you need are "Local echo" and "Line editing" under the "Terminal" category on the left.

To get the characters to display on the screen as you enter them, set "Local echo" to "Force on".

To get the terminal to not send the command until you press Enter, set "Local line editing" to "Force on".

Explanation:

From the PuTTY User Manual (Found by clicking on the "Help" button in PuTTY):

4.3.8 ‘Local echo’

With local echo disabled, characters you type into the PuTTY window are not echoed in the window by PuTTY. They are simply sent to the server. (The server might choose to echo them back to you; this can't be controlled from the PuTTY control panel.)

Some types of session need local echo, and many do not. In its default mode, PuTTY will automatically attempt to deduce whether or not local echo is appropriate for the session you are working in. If you find it has made the wrong decision, you can use this configuration option to override its choice: you can force local echo to be turned on, or force it to be turned off, instead of relying on the automatic detection.

4.3.9 ‘Local line editing’ Normally, every character you type into the PuTTY window is sent immediately to the server the moment you type it.

If you enable local line editing, this changes. PuTTY will let you edit a whole line at a time locally, and the line will only be sent to the server when you press Return. If you make a mistake, you can use the Backspace key to correct it before you press Return, and the server will never see the mistake.

Since it is hard to edit a line locally without being able to see it, local line editing is mostly used in conjunction with local echo (section 4.3.8). This makes it ideal for use in raw mode or when connecting to MUDs or talkers. (Although some more advanced MUDs do occasionally turn local line editing on and turn local echo off, in order to accept a password from the user.)

Some types of session need local line editing, and many do not. In its default mode, PuTTY will automatically attempt to deduce whether or not local line editing is appropriate for the session you are working in. If you find it has made the wrong decision, you can use this configuration option to override its choice: you can force local line editing to be turned on, or force it to be turned off, instead of relying on the automatic detection.

Putty sometimes makes wrong choices when "Auto" is enabled for these options because it tries to detect the connection configuration. Applied to serial line, this is a bit trickier to do.

i used replace feature in Notepad++ and replaced " (without quotes) with " and result was valid json

You can use jQuery.is() function along with :disabled selector:

$("#savematerial").is(":disabled")

We could look at error object for a property code that mentions the possible system error and in cases of ETIMEDOUT where a network call fails, act accordingly.

if (err.code === 'ETIMEDOUT') {
    console.log('My dish error: ', util.inspect(err, { showHidden: true, depth: 2 }));
}

change this {% if loop.counter == 1 %} to {% if forloop.counter == 1 %} {#your code here#} {%endfor%}

and this from {{ user }} {{loop.counter}} to {{ user }} {{forloop.counter}}

It seems that the original metaphor that got us the word "kernel" for this in the first place has been forgotten. The metaphor is that an operating system is a seed. The "kernel" of the seed is the core of the operating system, providing operating system services to applications programs, which is surrounded by the "shell" of the seed that is what users see from the outside.

Some people want to tie "kernel" (and, indeed, "shell") down to be more specific than that. But in truth there's a lot of variation across operating systems. Not the least these variations is what constitutes a "shell" (which can range from Solaris' sh through Netware's Console Command Interpreter to OS/2's Workplace Shell and Windows NT's Explorer), but there's also a lot of variance from one operating system to another in what is, and isn't, a part of a "kernel" (which may or may not include disk I/O, for example).

It's best to remember that these terms are metaphors.

Further reading

• https://superuser.com/a/329479/38062

If you have fixed the conflicts you need to add the files to the stage with git add [filename], then commit as normal.

for 2021 this one worked for me

brew tap homebrew/cask-versions


brew install --cask adoptopenjdk8

It mostly depends on how big n is.

If n==0, nothing beats option#1 :)

If n is very large, toArray(new String[n]) is faster.

In addition to all the answers about how to find unpartitioned space, you may also have space allocated to an LVM volume but not actually in use. You can list physical volumes with the pvdisplay and see which volume groups each physical volume is associated with. If a physical volume isn't associated with any volume group, it's safe to reallocate or destroy. Assuming that it it is associated with a volume group, the next step is to use vgdisplay to show your those. Among other things, this will show if you have any free "physical extents" — blocks of storage you can assign to a logical volume. You can get this in a concise form with vgs:

$ sudo vgs
  VG     #PV #LV #SN Attr   VSize   VFree
  fedora   1   3   0 wz--n- 237.46g    0 

... and here you can see I have nothing free. If I did, that last number would be bigger than zero.

This is important, because that free space is invisible to du, df, and the like, and also will show up as an allocated partition if you are using fdisk or another partitioning tool.

This should get you started: Using VBA in your own Excel workbook, have it prompt the user for the filename of their data file, then just copy that fixed range into your target workbook (that could be either the same workbook as your macro enabled one, or a third workbook). Here's a quick vba example of how that works:

' Get customer workbook...
Dim customerBook As Workbook
Dim filter As String
Dim caption As String
Dim customerFilename As String
Dim customerWorkbook As Workbook
Dim targetWorkbook As Workbook

' make weak assumption that active workbook is the target
Set targetWorkbook = Application.ActiveWorkbook

' get the customer workbook
filter = "Text files (*.xlsx),*.xlsx"
caption = "Please Select an input file "
customerFilename = Application.GetOpenFilename(filter, , caption)

Set customerWorkbook = Application.Workbooks.Open(customerFilename)

' assume range is A1 - C10 in sheet1
' copy data from customer to target workbook
Dim targetSheet As Worksheet
Set targetSheet = targetWorkbook.Worksheets(1)
Dim sourceSheet As Worksheet
Set sourceSheet = customerWorkbook.Worksheets(1)

targetSheet.Range("A1", "C10").Value = sourceSheet.Range("A1", "C10").Value

' Close customer workbook
customerWorkbook.Close

I use ALT-left and ALT-right to pop/push from/to the tag stack.

" Alt-right/left to navigate forward/backward in the tags stack
map <M-Left> <C-T>
map <M-Right> <C-]>

If you use hjkl for movement you can map <M-h> and <M-l> instead.

I think that every JSON response should contain a property (e.g. {authenticated: false}) and the client has to test it everytime: if false, then the Angular controller/service will "redirect" to the login page.

And what happen if the user catch de JSON and change the bool to True?

I think you should never rely on client side to do these kind of stuff. If the user is not authenticated, the server should just redirect to a login/error page.

You can see how iTunes does it by using Fiddler to follow the action when using the link: http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=80028216

1. It downloads a js file
2. On windows: the js file determines if iTunes was installed on the computer or not: looks for an activeX browser component if IE, or a browser plugin if FF
3. If iTunes is installed then the browser is redirected to an URL with a special transport: itms://...
4. The browser invokes the handler (provided by the iTunes exe). This includes starting up the exe if it is not already running.
5. iTunes exe uses the rest of the special url to show a specific page to the user.

Note that the exe, when installed, installed URL protocol handlers for "itms" transport with the browsers.

Not a simple engineering project to duplicate, but definitely do-able. If you go ahead with this, please consider making the relevant software open source.

If you want to keep your links to look like they are :active class, you should define :visited class same as :active so if you have a links in .example then you do something like this:

a.example:active, a.example:visited {
/* Put your active state style code here */ }

The Link visited Pseudo Class is used to select visited links as says the name.

System.IO.MemoryStream mStream = new System.IO.MemoryStream(System.Text.Encoding.UTF8.GetBytes( contents));

If the IE example doesn't work use this one. Anyway this should be faster than starting up an instance of IE.

Here is a complete solution based on
http://www.dailydoseofexcel.com/archives/2005/02/23/html-in-cells-ii/

Note, if your innerHTML is all numbers eg '12345', HTML formatting dosen't fully work in excel as it treats number differently? but add a character eg a trailing space at the end eg. 12345 + "& nbsp;" formats ok.

Sub test()
    Cells(1, 1).Value = "<HTML>1<font color=blue>a</font>" & _
                        "23<font color=red>4</font></HTML>"
    Dim rng As Range
    Set rng = ActiveSheet.Cells(1, 1)
    Worksheet_Change rng, ActiveSheet
End Sub


Private Sub Worksheet_Change(ByVal Target As Range, ByVal sht As Worksheet)

    Dim objData As DataObject ' Set a reference to MS Forms 2.0
    Dim sHTML As String
    Dim sSelAdd As String

    Application.EnableEvents = False

    If Target.Cells.Count = 1 Then

            Set objData = New DataObject
            sHTML = Target.Text
            objData.SetText sHTML
            objData.PutInClipboard
            Target.Select
            sht.PasteSpecial Format:="Unicode Text"
    End If

    Application.EnableEvents = True

End Sub

You miss parenthesis:

var value: string = dataObjects[i].getValue(); 
var id: number = dataObjects[i].getId();

Get-ChildItem $originalPath\* -Include @("*.gif", "*.jpg", "*.xls*", "*.doc*", "*.pdf*", "*.wav*", "*.ppt")

Summary:

• PagingAndSortingRepository extends CrudRepository

• JpaRepository extends PagingAndSortingRepository

The CrudRepository interface provides methods for CRUD operations, so it allows you to create, read, update and delete records without having to define your own methods.

The PagingAndSortingRepository provides additional methods to retrieve entities using pagination and sorting.

Finally the JpaRepository add some more functionality that is specific to JPA.

ldapwhoami -vvv -h <hostname> -p <port> -D <binddn> -x -w <passwd>, where binddn is the DN of the person whose credentials you are authenticating.

On success (i.e., valid credentials), you get Result: Success (0). On failure, you get ldap_bind: Invalid credentials (49).

sorted((minval, value, maxval))[1]

for example:

>>> minval=3
>>> maxval=7
>>> for value in range(10):
...   print sorted((minval, value, maxval))[1]
... 
3
3
3
3
4
5
6
7
7
7

This exception may also occur if you are using Sockets on one side and SSLSockets on the other. Consistency is important.

# reorder by column name
data <- data[c("A", "B", "C")]

#reorder by column index
data <- data[c(1,3,2)]

I have also got stuck into this and believe me disabling SELinux is not a good idea.

Please just use below and you are good,

sudo restorecon -R /var/www/mysite

Enjoy..

To append to an array, just use the += operator.

$Target += $TargetObject

Also, you need to declare $Target = @() before your loop because otherwise, it will empty the array every loop.

[averagRatioArray addObject:[NSString stringWithFormat:@"When you respond Yes to %@ the average response to    %@ was %0.02f",QString1,QString2,M1]];
[averagRatioArray addObject:[NSString stringWithFormat:@"When you respond No  to %@ the average response to    %@ was %0.02f",QString1,QString2,M0]];

UIFont *font2 = [UIFont fontWithName:@"Helvetica-Bold" size:15];
UIFont *font = [UIFont fontWithName:@"Helvetica-Bold" size:12];

NSMutableAttributedString *str=[[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"When you respond Yes to %@ the average response to %@ was",QString1,QString2]];
[str addAttribute:NSFontAttributeName value:font range:NSMakeRange(0,[@"When you respond Yes to " length])];
[str addAttribute:NSFontAttributeName value:font2 range:NSMakeRange([@"When you respond Yes to " length],[QString1 length])];
[str addAttribute:NSFontAttributeName value:font range:NSMakeRange([QString1 length],[@" the average response to " length])];
[str addAttribute:NSFontAttributeName value:font2 range:NSMakeRange([@" the average response to " length],[QString2 length])];
[str addAttribute:NSFontAttributeName value:font range:NSMakeRange([QString2 length] ,[@" was" length])];
// [str addAttribute:NSFontAttributeName value:font2 range:NSMakeRange(49+[QString1 length]+[QString2 length] ,8)];
[averagRatioArray addObject:[NSString stringWithFormat:@"%@",str]];

Normally when querying a database with SQL and then fill a data-table with its results, it will never be a null Data table. You have the column headers filled with column information even if you returned 0 records.When one tried to process a data table with 0 records but with column information it will throw exception.To check the datatable before processing one could check like this.

if (DetailTable != null && DetailTable.Rows.Count>0)

If you are using Linux distribution with apt and have added webupd8 PPA, you can simply run the command

apt-get install oracle-java8-unlimited-jce-policy

Other updates:

1. The Unlimited Strength Jurisdiction Policy Files are included with Java 9 and used by default
2. Starting with Java 8 Update 161, Java 8 defaults to the Unlimited Strength Jurisdiction Policy.

3. Starting with Java 8 Update 151, the Unlimited Strength Jurisdiction Policy is included with Java 8 but not used by default. To enable it, you need to edit the java.security file in <java_home>/jre/lib/security (for JDK) or <java_home>/lib/security (for JRE). Uncomment (or include) the line

   crypto.policy=unlimited

   Make sure you edit the file using an editor run as administrator. The policy change only takes effect after restarting the JVM

Before Java 8 Update 151 rest of the answers hold valid. Download JCE Unlimited Strength Jurisdiction Policy Files and replace.

For more details, you can refer to my personal blog post below - How to install Java Cryptography Extension (JCE) unlimited strength jurisdiction policy files