The reason not to synchronize on this is that sometimes you need more than one lock (the second lock often gets removed after some additional thinking, but you still need it in the intermediate state). If you lock on this, you always have to remember which one of the two locks is this; if you lock on a private Object, the variable name tells you that.

From the reader's viewpoint, if you see locking on this, you always have to answer the two questions:

1. what kind of access is protected by this?
2. is one lock really enough, didn't someone introduce a bug?

An example:

class BadObject {
    private Something mStuff;
    synchronized setStuff(Something stuff) {
        mStuff = stuff;
    }
    synchronized getStuff(Something stuff) {
        return mStuff;
    }
    private MyListener myListener = new MyListener() {
        public void onMyEvent(...) {
            setStuff(...);
        }
    }
    synchronized void longOperation(MyListener l) {
        ...
        l.onMyEvent(...);
        ...
    }
}

If two threads begin longOperation() on two different instances of BadObject, they acquire their locks; when it's time to invoke l.onMyEvent(...), we have a deadlock because neither of the threads may acquire the other object's lock.

In this example we may eliminate the deadlock by using two locks, one for short operations and one for long ones.

win32gui.GetCursorPos(point)

This retrieves the cursor's position, in screen coordinates - point = (x,y)

flags, hcursor, (x,y) = win32gui.GetCursorInfo()

Retrieves information about the global cursor.

Links:

• http://msdn.microsoft.com/en-us/library/ms648389(VS.85).aspx
• http://msdn.microsoft.com/en-us/library/ms648390(VS.85).aspx

I am assuming that you would be using python win32 API bindings or pywin32.

In case, someone looking for lower version -

For SQL Server 2000:

sp_changeobjectowner @objname = 'dbo.Employess' , @newowner ='exe'

NSArray is not mutable, that is, you cannot modify it. You should take a look at NSMutableArray. Check out the "Removing Objects" section, you'll find there many functions that allow you to remove items:

[anArray removeObjectAtIndex: index];
[anArray removeObject: item];
[anArray removeLastObject];

In SQL Server 2008 and newer you can cast the DateTime to a Date, which removes the time element.

WHERE Orders.OrderStatus = 'Shipped'  
AND Orders.ShipDate >= (cast(GETDATE()-6 as date))  

In SQL Server 2005 and below you can use:

WHERE Orders.OrderStatus = 'Shipped'  
AND Orders.ShipDate >= DateAdd(Day, Datediff(Day,0, GetDate() -6), 0)

You can find a solution on SuperUser :

Chrome cookies folder in Windows 7:-

C:\Users\your_username\AppData\Local\Google\Chrome\User Data\Default\
You'll need a program like SQLite Database Browser to read it.

For Mac OS X, the file is located at :-
~/Library/Application Support/Google/Chrome/Default/Cookies

Sometimes (not often!) you do truly know more about past, current and future memory usage then the run time does. This does not happen very often, and I would claim never in a web application while normal pages are being served.

Many year ago I work on a report generator, that

• Had a single thread
• Read the “report request” from a queue
• Loaded the data needed for the report from the database
• Generated the report and emailed it out.
• Repeated forever, sleeping when there were no outstanding requests.
• It did not reuse any data between reports and did not do any cashing.

Firstly as it was not real time and the users expected to wait for a report, a delay while the GC run was not an issue, but we needed to produce reports at a rate that was faster than they were requested.

Looking at the above outline of the process, it is clear that.

• We know there would be very few live objects just after a report had been emailed out, as the next request had not started being processed yet.
• It is well known that the cost of running a garbage collection cycle is depending on the number of live objects, the amount of garbage has little effect on the cost of a GC run.
• That when the queue is empty there is nothing better to do then run the GC.

Therefore clearly it was well worth while doing a GC run whenever the request queue was empty; there was no downside to this.

It may be worth doing a GC run after each report is emailed, as we know this is a good time for a GC run. However if the computer had enough ram, better results would be obtained by delaying the GC run.

This behaviour was configured on a per installation bases, for some customers enabling a forced GC after each report greatly speeded up the protection of reports. (I expect this was due to low memory on their server and it running lots of other processes, so hence a well time forced GC reduced paging.)

We never detected an installation that did not benefit was a forced GC run every time the work queue was empty.

But, let be clear, the above is not a common case.

jdbc:jtds:sqlserver://x.x.x.x/database replacing x.x.x.x with the IP or hostname of your SQL Server machine.

jdbc:jtds:sqlserver://MYPC/Blog;instance=SQLEXPRESS

or

jdbc:jtds:sqlserver://MYPC:1433/Blog;instance=SQLEXPRESS

If you are wanting to set the username and password in the connection string too instead of against a connection object separately:

jdbc:jtds:sqlserver://MYPC/Blog;instance=SQLEXPRESS;user=foo;password=bar

(Updated my incorrect information and add reference to the instance syntax)

You can also just use the pipeline with the AddScript Method:

string cmdArg = ".\script.ps1 -foo bar"            
Collection<PSObject> psresults;
using (Pipeline pipeline = _runspace.CreatePipeline())
            {
                pipeline.Commands.AddScript(cmdArg);
                pipeline.Commands[0].MergeMyResults(PipelineResultTypes.Error, PipelineResultTypes.Output);
                psresults = pipeline.Invoke();
            }
return psresults;

It will take a string, and whatever parameters you pass it.

Use it like this, should work:

 <a routerLink="/Service/Sign_in"><button class="btn btn-success pull-right" > Add Customer</button></a>

You can also use router.navigateByUrl('..') like this:

<button type="button" class="btn btn-primary-outline pull-right" (click)="btnClick();"><i class="fa fa-plus"></i> Add</button>    

import { Router } from '@angular/router';

btnClick= function () {
        this.router.navigateByUrl('/user');
};

Update 1

You have to inject Router in the constructor like this:

constructor(private router: Router) { }

only then you are able to use this.router. Remember also to import RouterModule in your module.

Update 2

Now, After Angular v4 you can directly add routerLink attribute on the button (As mentioned by @mark in comment section) like below (No "'/url?" since Angular 6, when a Route in RouterModule exists) -

 <button [routerLink]="'url'"> Button Label</button>

use the variable, Oracle does not support SQL in that context without an INTO. With a properly named variable your code will be more legible anyway.

Use different format or pattern to get the information from the date

var myDate = new Date("2015-06-17 14:24:36");_x000D_
console.log(moment(myDate).format("YYYY-MM-DD HH:mm:ss"));_x000D_
console.log("Date: "+moment(myDate).format("YYYY-MM-DD"));_x000D_
console.log("Year: "+moment(myDate).format("YYYY"));_x000D_
console.log("Month: "+moment(myDate).format("MM"));_x000D_
console.log("Month: "+moment(myDate).format("MMMM"));_x000D_
console.log("Day: "+moment(myDate).format("DD"));_x000D_
console.log("Day: "+moment(myDate).format("dddd"));_x000D_
console.log("Time: "+moment(myDate).format("HH:mm")); // Time in24 hour format_x000D_
console.log("Time: "+moment(myDate).format("hh:mm A"));

<script src="https://momentjs.com/downloads/moment.js"></script>

For more info: https://momentjs.com/docs/#/parsing/string-format/

If you are using c# on the desktop, you can use SimpleMapi. That way it will be sent using the default mail client, and the user has the option of reviewing the message before sending, just like mailto:.

To use it you add the Simple-MAPI.NET package (it's 13Kb), and run:

var mapi = new SimpleMapi();
mapi.AddRecipient(null, address, false);
mapi.Attach(path);
//mapi.Logon(ParentForm.Handle);    //not really necessary
mapi.Send(subject, body, true);

For PHP7, use

sudo apt-get install php7.0-sqlite3

and restart Apache

sudo apache2ctl restart

The SQL WITH clause was introduced by Oracle in the Oracle 9i release 2 database. The SQL WITH clause allows you to give a sub-query block a name (a process also called sub-query refactoring), which can be referenced in several places within the main SQL query. The name assigned to the sub-query is treated as though it was an inline view or table. The SQL WITH clause is basically a drop-in replacement to the normal sub-query.

Syntax For The SQL WITH Clause

The following is the syntax of the SQL WITH clause when using a single sub-query alias.

WITH <alias_name> AS (sql_subquery_statement)
SELECT column_list FROM <alias_name>[,table_name]
[WHERE <join_condition>]

When using multiple sub-query aliases, the syntax is as follows.

WITH <alias_name_A> AS (sql_subquery_statement),
<alias_name_B> AS(sql_subquery_statement_from_alias_name_A
or sql_subquery_statement )
SELECT <column_list>
FROM <alias_name_A>, <alias_name_B> [,table_names]
[WHERE <join_condition>]

In the syntax documentation above, the occurrences of alias_name is a meaningful name you would give to the sub-query after the AS clause. Each sub-query should be separated with a comma Example for WITH statement. The rest of the queries follow the standard formats for simple and complex SQL SELECT queries.

For more information: http://www.brighthub.com/internet/web-development/articles/91893.aspx

You don't need to bother with that. Just write

<input type="text" name="email" placeholder="[email protected]" size="30">

replace the value with placeholder

Sample function is used for sample data in ORACLE. So you can try like this:-

SELECT * FROM TABLE_NAME SAMPLE(50);

Here 50 is the percentage of data contained by the table. So if you want 1000 rows from 100000. You can execute a query like:

SELECT * FROM TABLE_NAME SAMPLE(1);

Hope this can help you.

longcan only take string convertibles which can end in a base 10 numeral. So, the decimal is causing the harm. What you can do is, float the value before calling the long. If your program is on Python 2.x where int and long difference matters, and you are sure you are not using large integers, you could have just been fine with using int to provide the key as well.

So, the answer is long(float('234.89')) or it could just be int(float('234.89')) if you are not using large integers. Also note that this difference does not arise in Python 3, because int is upgraded to long by default. All integers are long in python3 and call to covert is just int

You are looking for a simple code, like this:

    List<string> tagList = new List<string>(new[]
    {
         "A"
        ,"B"
        ,"C"
        ,"D"
        ,"E"
    });

the above script may not run in ksh. you have to use the 'let' opparand to assing the value and then echo it.

val1=4

val2=3

let val3=$val1+$val2

echo $val3 

I suggest removing the below code from getMails

 .catch(error => { throw error})

In your main function you should put await and related code in Try block and also add one catch block where you failure code.

you function gmaiLHelper.getEmails should return a promise which has reject and resolve in it.

Now while calling and using await put that in try catch block(remove the .catch) as below.

router.get("/emailfetch", authCheck, async (req, res) => {
  //listing messages in users mailbox 
try{
  let emailFetch = await gmaiLHelper.getEmails(req.user._doc.profile_id , '/messages', req.user.accessToken)
}
catch (error) { 
 // your catch block code goes here
})

Using the Elastic search DSL API, you may hit the same error with

s = Search(using=client, index="my-index") \
    .query("match", category.keyword="Musician")

You can solve it by doing:

s = Search(using=client, index="my-index") \
    .query({"match": {"category.keyword":"Musician/Band"}})

I think your solution is the only sensible way. The only way to get the list of files is to use File.listFiles() and the documentation states that this makes no guarantees about the order of the files returned. Therefore you need to write a Comparator that uses File.lastModified() and pass this, along with the array of files, to Arrays.sort().

select Id, StartDate,
Case IsNull (StartDate , '01/01/1800')
When '01/01/1800' then
  'Awaiting'
Else
  'Approved'
END AS StartDateStatus
From MyTable

I came across this recently. Which among Proxy-Authorization and Authorization headers to set depends on the server the client is talking to. If it is a Webserver, you need to set Authorization and if it a proxy, you have to set the Proxy-Authorization header

You can use

formname.textboxname.value="delete";

Well you can use the window.onclose event and return false in the event handler.

function closedWin() {
    confirm("close ?");
    return false; /* which will not allow to close the window */
}
if(window.addEventListener) {
     window.addEventListener("close", closedWin, false);
}

window.onclose = closedWin;

Code was taken from this site.

In the other hand, if they force the closing (by using task manager or something in those lines) you cannot do anything about it.

I tried all the above answers, none of them worked, in my case even docker container ls doesn't show any container running. It looks like the problem is due to the fact that the docker proxy is still using ports although there are no containers running. In my case I was using ubuntu. Here's what I tried and got the problem solved, just run the following two commands:

sudo service docker stop
sudo rm -f /var/lib/docker/network/files/local-kv.db

It doesn't work because name is a reserved word in JavaScript. Change the function name to something else.

See http://www.quackit.com/javascript/javascript_reserved_words.cfm

<form id="form" onsubmit="return false;">
    <input style="position:absolute; top:80%; left:5%; width:40%;" type="text" id="userInput" />
    <input style="position:absolute; top:50%; left:5%; width:40%;" type="submit" onclick="othername();" />
</form>

function othername() {
    var input = document.getElementById("userInput").value;
    alert(input);
}

Simple rules of bidirectional relationships:

1.For many-to-one bidirectional relationships, the many side is always the owning side of the relationship. Example: 1 Room has many Person (a Person belongs one Room only) -> owning side is Person

2.For one-to-one bidirectional relationships, the owning side corresponds to the side that contains the corresponding foreign key.

3.For many-to-many bidirectional relationships, either side may be the owning side.

Hope can help you.

A simple, shell/platform-independent, pure macro solution is ...

# GNU make (`gmake`) compatible; ref: <https://www.gnu.org/software/make/manual>
define EOL

$()
endef
%sequence = $(if $(word ${1},${2}),$(wordlist 1,${1},${2}),$(call %sequence,${1},${2} $(words _ ${2})))

.PHONY: target
target:
    $(foreach i,$(call %sequence,10),./a.out ${i}${EOL})

Your regex only allows exactly 8 characters. Use {8,} to specify eight or more instead of {8}.

But why would you limit the allowed character range for your passwords? 8-character alphanumeric passwords can be bruteforced by my phone within minutes.

This code snippet:

int& func1()
{
    int i;
    i = 1;
    return i;
}

will not work because you're returning an alias (a reference) to an object with a lifetime limited to the scope of the function call. That means once func1() returns, int i dies, making the reference returned from the function worthless because it now refers to an object that doesn't exist.

int main()
{
    int& p = func1();
    /* p is garbage */
}

The second version does work because the variable is allocated on the free store, which is not bound to the lifetime of the function call. However, you are responsible for deleteing the allocated int.

int* func2()
{
    int* p;
    p = new int;
    *p = 1;
    return p;
}

int main()
{
    int* p = func2();
    /* pointee still exists */
    delete p; // get rid of it
}

Typically you would wrap the pointer in some RAII class and/or a factory function so you don't have to delete it yourself.

In either case, you can just return the value itself (although I realize the example you provided was probably contrived):

int func3()
{
    return 1;
}

int main()
{
    int v = func3();
    // do whatever you want with the returned value
}

Note that it's perfectly fine to return big objects the same way func3() returns primitive values because just about every compiler nowadays implements some form of return value optimization:

class big_object 
{ 
public:
    big_object(/* constructor arguments */);
    ~big_object();
    big_object(const big_object& rhs);
    big_object& operator=(const big_object& rhs);
    /* public methods */
private:
    /* data members */
};

big_object func4()
{
    return big_object(/* constructor arguments */);
}

int main()
{
     // no copy is actually made, if your compiler supports RVO
    big_object o = func4();    
}

Interestingly, binding a temporary to a const reference is perfectly legal C++.

int main()
{
    // This works! The returned temporary will last as long as the reference exists
    const big_object& o = func4();    
    // This does *not* work! It's not legal C++ because reference is not const.
    // big_object& o = func4();  
}

I was facing the same issue. Trying to compare a varchar(100) column with numeric 1. Resulted in the 1292 error. Fixed by adding single quotes around 1 ('1').

Thanks for the explanation above

Here's a short commandline version which exits straight away (handy for scripts and automated execution):

python -c "print(__import__('sys').version)"

Or just the major, minor and micro:

python -c "print(__import__('sys').version_info[:1])" # (2,)
python -c "print(__import__('sys').version_info[:2])" # (2, 7)
python -c "print(__import__('sys').version_info[:3])" # (2, 7, 6)

Tomcat-7 JNDI configuration:

Steps:

1. Open the server.xml in the tomcat-dir/conf
2. Add below <Resource> tag with your DB details inside <GlobalNamingResources>

<Resource name="jdbc/mydb"
          global="jdbc/mydb"
          auth="Container"
          type="javax.sql.DataSource"
          driverClassName="com.mysql.jdbc.Driver"
          url="jdbc:mysql://localhost:3306/test"
          username="root"
          password=""
          maxActive="10"
          maxIdle="10"
          minIdle="5"
          maxWait="10000"/>

3. Save the server.xml file
4. Open the context.xml in the tomcat-dir/conf
5. Add the below <ResourceLink> inside the <Context> tag.

<ResourceLink name="jdbc/mydb" 
              global="jdbc/mydb"
              auth="Container"
              type="javax.sql.DataSource" />

6. Save the context.xml
7. Open the hibernate-cfg.xml file and add and remove below properties.

Adding:
-------
<property name="connection.datasource">java:comp/env/jdbc/mydb</property>

Removing:
--------
<!--<property name="connection.url">jdbc:mysql://localhost:3306/mydb</property> -->
<!--<property name="connection.username">root</property> -->
<!--<property name="connection.password"></property> -->

8. Save the file and put latest .WAR file in tomcat.
9. Restart the tomcat. the DB connection will work.

Another way for filtering the database with specific word.

SHOW DATABASES WHERE `Database` LIKE '<yourDatabasePrefixHere>%'
or
SHOW DATABASES LIKE '<yourDatabasePrefixHere>%';

Example:

SHOW DATABASES WHERE `Database` LIKE 'foobar%'
foobar_animal
foobar_humans_gender
foobar_objects

The command on OSX should be exactly the same as it is Unix under the pretty UI.

I believe you are using the

echo Text >> Example.txt 

function?

If so the answer would be simply adding a "." (Dot) directly after the echo with nothing else there.

Example:

echo Blah
echo Blah 2
echo. #New line is added
echo Next Blah

As Oriol said, you need the following redistributables before installing WAMP.

From the readme.txt

BEFORE proceeding with the installation of Wampserver, you must ensure that certain elements are installed on your system, otherwise Wampserver will absolutely not run, and in addition, the installation will be faulty and you need to remove Wampserver BEFORE installing the elements that were missing.

Make sure you are "up to date" in the redistributable packages VC9, VC10, VC11, VC13 and VC14 Even if you think you are up to date, install each package as administrator and if message "Already installed", validate Repair.

The following packages (VC9, VC10, VC11) are imperatively required to Wampserver 2.4, 2.5 and 3.0, even if you use only Apache and PHP versions VC11 and VC14 is required for PHP 7 and Apache 2.4.17

• VC9 Packages (Visual C++ 2008 SP1)
  https://www.microsoft.com/en-us/download/details.aspx?id=5582
  https://www.microsoft.com/en-us/download/details.aspx?id=2092

• VC10 Packages (Visual C++ 2010 SP1)
  https://www.microsoft.com/en-us/download/details.aspx?id=8328
  https://www.microsoft.com/en-us/download/details.aspx?id=13523

• VC11 Packages (Visual C++ 2012 Update 4) The two files VSU4\vcredist_x86.exe and VSU4\vcredist_x64.exe to be download are on the same page: http://www.microsoft.com/en-us/download/details.aspx?id=30679

• VC13 Packages[/b] (Visual C++ 2013) The two files VSU4\vcredist_x86.exe and VSU4\vcredist_x64.exe

• VC14 Packages (Visual C++ 2015) The two files vcredist_x86.exe and vcredist_x64.exe to be download are on the same page: https://www.microsoft.com/en-us/download/details.aspx?id=52685

• VC Packages x64 (Visual C++ 2017)

https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

Use /youregexp/.test(yourString) if you only want to know whether your string matches the regexp.

Slow, ugly, platform-specific... but one-liner ;-)

import subprocess

contents = subprocess.Popen('cat %s' % filename, shell = True, stdout = subprocess.PIPE).communicate()[0]

Note that namespaces that are in the format of a valid Web URL don't necessarily need to be dereferenced i.e. you don't need to serve actual content at that URL. All that matters is that the namespace is globally unique.

I have a correction for one of the statements above... "truncate cannot be rolled back"

Truncate can be rolled back. There are some cases when you can't do a truncate or drop table, such as when you have a foreign key reference. For a task such as monthly reporting, I'd probably just drop the table once I didn't need it anymore. If I was doing this rollup reporting more often then I'd probably keep the table instead and use truncate.

Hope this helps, here's some more info that you should find useful...

Please see the following article for more details: http://sqlblog.com/blogs/denis_gobo/archive/2007/06/13/1458.aspx

Also, for more details on delete vs. truncate, see this article: http://www.sql-server-performance.com/faq/delete_truncate_difference_p1.aspx

Thanks! Jeff

You shouldn't create jquery objects for each cell and row. Try this:

function responseHandler(response)
{
     var c = [];
     $.each(response, function(i, item) {             
         c.push("<tr><td>" + item.rank + "</td>");
         c.push("<td>" + item.content + "</td>");
         c.push("<td>" + item.UID + "</td></tr>");               
     });

     $('#records_table').html(c.join(""));
}

update: As GreenTurtle correctly remarked, the following is wrong

I would just write

boolean result = Arrays.asList(FooEnum.values()).contains("Foo");

This is possibly less performant than catching a runtime exception, but makes for much cleaner code. Catching such exceptions is always a bad idea, since it is prone to misdiagnosis. What happens when the retrieval of the compared value itself causes an IllegalArgumentException ? This would then be treaten like a non matching value for the enumerator.

This should get you started:

log4j.rootLogger=QuietAppender, LoudAppender, TRACE
# setup A1
log4j.appender.QuietAppender=org.apache.log4j.RollingFileAppender
log4j.appender.QuietAppender.Threshold=INFO
log4j.appender.QuietAppender.File=quiet.log
...


# setup A2
log4j.appender.LoudAppender=org.apache.log4j.RollingFileAppender
log4j.appender.LoudAppender.Threshold=DEBUG
log4j.appender.LoudAppender.File=loud.log
...

log4j.logger.com.yourpackage.yourclazz=TRACE

allow_url_fopen is generally set to On. If it is not On, then you can try two things.

1. Create an .htaccess file and keep it in root folder ( sometimes it may need to place it one step back folder of the root) and paste this code there.

   php_value allow_url_fopen On
   

2. Create a php.ini file (for update server php5.ini) and keep it in root folder (sometimes it may need to place it one step back folder of the root) and paste the following code there:

   allow_url_fopen = On;
   

I have personally tested the above solutions; they worked for me.

From the JIRA knowledge base:

Symptoms

Workflow actions may be inaccessible

1. JIRA may throw exceptions on screen
2. One or both of the following conditions may exist:

The following appears in the atlassian-jira.log:

     2007-12-06 10:55:05,327 http-8080-Processor20 ERROR [500ErrorPage] 
     Exception caught in500 page Unable to compile class for JSP
    org.apache.jasper.JasperException: Unable to compile class for JSP
   at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:572)
   at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:305)

_

Cause:

The Tomcat container caches .java and .class files generated by the JSP parser they are used by the web application. Sometimes these get corrupted or cannot be found. This may occur after a patch or upgrade that contains modifications to JSPs.

Resolution

1.Delete the contents of the /work folder if using standalone JIRA or /work if using EAR/WAR installation . 2. Verify the user running the JIRA application process has Read/Write permission to the /work directory. 3. Restart the JIRA application container to rebuild the files.

According to this issue comment, editing cross-env path will fix the problem. Change cross-env to node node_modules/cross-env/dist/bin/cross-env.js in package.json like this:

    "dev": "npm run development",
    "development": "node node_modules/cross-env/dist/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
    "watch": "node node_modules/cross-env/dist/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
    "watch-poll": "npm run watch -- --watch-poll",
    "hot": "node node_modules/cross-env/dist/bin/cross-env.js NODE_ENV=development node_modules/webpack-dev-server/bin/webpack-dev-server.js --inline --hot --config=node_modules/laravel-mix/setup/webpack.config.js",
    "prod": "npm run production",
    "production": "node node_modules/cross-env/dist/bin/cross-env.js NODE_ENV=production node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"

You can't remove items from a list while iterating over it. It's much easier to build a new list based on the old one:

y = [s for s in x if len(s) == 2]

In Ubuntu

 mysql -u root -p
 CREATE database dbname;
 use dbname;
 source /home/computername/Downloads/merchantapp.sql
 exit;

In Windows

Download the SQL file and save it in C:\xampp\mysql\bin.

After that, open the command prompt with C:\xampp\mysql\bin:

 C:\xampp\mysql\bin> mysql -u username -p database_name < file.sql

try to use ng-window, it's allow developer to open and full control multiple windows in single page applications in simple way, No Jquery, No Bootstrap.

Avilable Configration

• Maxmize window
• Minimize window
• Custom size,
• Custom posation
• the window is dragable
• Block parent window or not
• Center the window or not
• Pass values to chield window
• Pass values from chield window to parent window
• Listening to closing chield window in parent window
• Listen to resize event with your custom listener
• Open with maximum size or not
• Enable and disable window resizing
• Enable and disable maximization
• Enable and disable minimization

Calling presentViewController presents the view controller modally, outside the existing navigation stack; it is not contained by your UINavigationController or any other. If you want your new view controller to have a navigation bar, you have two main options:

Option 1. Push the new view controller onto your existing navigation stack, rather than presenting it modally:

let VC1 = self.storyboard!.instantiateViewControllerWithIdentifier("MyViewController") as! ViewController
self.navigationController!.pushViewController(VC1, animated: true)

Option 2. Embed your new view controller into a new navigation controller and present the new navigation controller modally:

let VC1 = self.storyboard!.instantiateViewControllerWithIdentifier("MyViewController") as! ViewController
let navController = UINavigationController(rootViewController: VC1) // Creating a navigation controller with VC1 at the root of the navigation stack.
self.present(navController, animated:true, completion: nil)

Bear in mind that this option won't automatically include a "back" button. You'll have to build in a close mechanism yourself.

Which one is best for you is a human interface design question, but it's normally clear what makes the most sense.

You can use this constructor

moment({h:0, m:0, s:0, ms:0})

http://momentjs.com/docs/#/parsing/object/

console.log( moment().format('YYYY-MM-DD HH:mm:ss') )_x000D_
_x000D_
console.log( moment({h:0, m:0, s:0, ms:0}).format('YYYY-MM-DD HH:mm:ss') )

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.2/moment.min.js"></script>

It's most strongly dependent on the package distribution system you use. For example, with MacPorts, you can install multiple Python packages and use the pyselect utility to switch the default between them with ease. At all times, you're able to call the different Python interpreters by providing the full path, and you're able to link against all the Python libraries and headers by providing the full paths for those.

So basically, whatever way you install the versions, as long as you keep your installations separate, you'll able to run them separately.

you can also try divmod(x, y) which returns a tuple (x // y, x % y)

This should work but must be used within an unsafe context:

byte[] buffer = new byte[255];
fixed (byte* p = buffer)
{
    IntPtr ptr = (IntPtr)p;
    // do you stuff here
}

beware, you have to use the pointer in the fixed block! The gc can move the object once you are not anymore in the fixed block.

My general answer to this kind of question on "efficiency" is almost always, which ever version of the code is most readable, is the most efficient.

That being said, I think (val.ToLowerCase() == "astringvalue") is pretty understandable at a glance by most people.

The efficience I refer to is not necesseraly in the execution of the code but rather in the maintanance and generally readability of the code in question.

Finding the root path of an electron app could get tricky. Because the root path is different for the main process and renderer under different conditions such as production, development and packaged conditions.

I have written a npm package electron-root-path to capture the root path of an electron app.

$ npm install electron-root-path

or 

$ yarn add electron-root-path


// Import ES6 way
import { rootPath } from 'electron-root-path';

// Import ES2015 way
const rootPath = require('electron-root-path').rootPath;

// e.g:
// read a file in the root
const location = path.join(rootPath, 'package.json');
const pkgInfo = fs.readFileSync(location, { encoding: 'utf8' });

The best way to put is that hg forget is identical to hg remove except that it leaves the files behind in your working copy. The files are left behind as untracked files and can now optionally be ignored with a pattern in .hgignore.

In other words, I cannot tell if you used hg forget or hg remove when I pull from you. A file that you ran hg forget on will be deleted when I update to that changeset — just as if you had used hg remove instead.

I faced the exact same issue and notice that after installing node.js there was a new path entry in the user variable section for PATH with value --> c:\User\\AppData\Roaming\npm. Also the Path entry in the system variable is appended with --> C:\Program Files\nodejs. Now since user variable has preference over system you have two options to fix this. Either delete the path from user variable or correct the right path (C:\Program Files\nodejs). Restart CMD and it should work.

In windows 7, you may have to edit this file

C:\Users\<UserName>\AppData\Roaming\Subversion\servers

[global]
http-proxy-host = ip.add.re.ss
http-proxy-port = 3128

@Sotirios Delimanolis answer do the job however I was looking for comparing strings within this mockMvc assertion

So here it is

.andExpect(content().string("\"Username already taken - please try with different username\""));

Of course my assertion fail:

java.lang.AssertionError: Response content expected:
<"Username already taken - please try with different username"> but was:<"Something gone wrong">

because:

  MockHttpServletResponse:
            Body = "Something gone wrong"

So this is proof that it works!

I feel the simplest way would be

 from matplotlib import pyplot;
 from pylab import genfromtxt;  
 mat0 = genfromtxt("data0.txt");
 mat1 = genfromtxt("data1.txt");
 pyplot.plot(mat0[:,0], mat0[:,1], label = "data0");
 pyplot.plot(mat1[:,0], mat1[:,1], label = "data1");
 pyplot.legend();
 pyplot.show();

1. label is the string that is displayed on the legend
2. you can plot as many series of data points as possible before show() to plot all of them on the same graph This is the simple way to plot simple graphs. For other options in genfromtxt go to this url.

Are you trying to get a) Reader functionality out of InputStreamReader, or b) InputStream functionality out of InputStreamReader? You won't get b). InputStreamReader is not an InputStream.

The purpose of InputStreamReader is to take an InputStream - a source of bytes - and decode the bytes to chars in the form of a Reader. You already have your data as chars (your original String). Encoding your String into bytes and decoding the bytes back to chars would be a redundant operation.

If you are trying to get a Reader out of your source, use StringReader.

If you are trying to get an InputStream (which only gives you bytes), use apache commons IOUtils.toInputStream(..) as suggested by other answers here.

Use one of these tricks

1. Remove the spaces
2. Negative margin
3. Skip the closing tag (HTML5 doesn't care anyway)
4. Set the font size to zero (A space that has zero font-size is... zero width)
5. Use flexbox

See the code below:

body {_x000D_
  font-family: sans-serif;_x000D_
  font-size: 16px;_x000D_
}_x000D_
_x000D_
ul {_x000D_
  list-style: none_x000D_
}_x000D_
_x000D_
li {_x000D_
  background: #000;_x000D_
  display: inline-block;_x000D_
  padding: 4px;_x000D_
  color: #fff;_x000D_
}_x000D_
_x000D_
ul.white-space-fix li {_x000D_
  margin-right: -4px;_x000D_
}_x000D_
_x000D_
ul.zero-size {_x000D_
  font-size: 0px;_x000D_
}_x000D_
_x000D_
ul.zero-size li {_x000D_
  font-size: 16px;_x000D_
}_x000D_
_x000D_
ul.flexbox {_x000D_
  display: -webkit-box;_x000D_
  display: -moz-box;_x000D_
  display: -ms-flexbox;_x000D_
  display: -webkit-flex;_x000D_
  display: flex;_x000D_
}

original..._x000D_
<ul>_x000D_
  <li>one</li>_x000D_
  <li>two</li>_x000D_
  <li>three</li>_x000D_
</ul>_x000D_
_x000D_
Funky code formatting..._x000D_
<ul>_x000D_
  <li>_x000D_
   one</li><li>_x000D_
   two</li><li>_x000D_
   three</li>_x000D_
</ul>_x000D_
_x000D_
Adding html comments..._x000D_
<ul>_x000D_
  <li>one</li><!--_x000D_
  --><li>two</li><!--_x000D_
  --><li>three</li>_x000D_
</ul>_x000D_
_x000D_
CSS margin-right: -4px;_x000D_
<ul class="white-space-fix">_x000D_
  <li>one</li>_x000D_
  <li>two</li>_x000D_
  <li>three</li>_x000D_
</ul>_x000D_
_x000D_
Omitting the &lt;/li&gt;_x000D_
<ul>_x000D_
  <li>one_x000D_
    <li>two_x000D_
      <li>three_x000D_
</ul>_x000D_
_x000D_
fixed with font-size: 0_x000D_
<br><br>_x000D_
<ul class="zero-size">_x000D_
  <li>one</li>_x000D_
  <li>two</li>_x000D_
  <li>three</li>_x000D_
</ul>_x000D_
_x000D_
<br> flexbox_x000D_
<br>_x000D_
<ul class="flexbox">_x000D_
  <li>one</li>_x000D_
  <li>two</li>_x000D_
  <li>three</li>_x000D_
</ul>

For Swift 5+

var window: UIWindow?

    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
        if let windowScene = scene as? UIWindowScene {
            let window = UIWindow(windowScene: windowScene)
            let submodules = (
                home: HomeRouter.createModule(),
                search: SearchRouter.createModule(),
                exoplanets: ExoplanetsRouter.createModule()
            )
            
            let tabBarController = TabBarModuleBuilder.build(usingSubmodules: submodules)
            
            window.rootViewController = tabBarController
            self.window = window
            window.makeKeyAndVisible()
        }
    }

I created an instance variable to check whether I'll show the placeholder or not:

BOOL showPlaceHolder;
UITextView * textView; // and also the textView

On viewDidLoad I set:

[self setPlaceHolder]; 

Here's what this does:

- (void)setPlaceholder
{
    textView.text = NSLocalizedString(@"Type your question here", @"placeholder");
    textView.textColor = [UIColor lightGrayColor];
    self.showPlaceHolder = YES; //we save the state so it won't disappear in case you want to re-edit it
}

I also created a button to resign the keyboard. You don't have to do this but the cool thing here is that the placeholder is shown again if nothing was entered

- (void)textViewDidBeginEditing:(UITextView *)txtView 
{
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Done" style:UIBarButtonItemStyleDone target:self action:@selector(resignKeyboard)];
    if (self.showPlaceHolder == YES) 
    {
        textView.textColor = [UIColor blackColor];
        textView.text = @"";
        self.showPlaceHolder = NO;
    }
}

- (void)resignKeyboard 
{
    [textView resignFirstResponder];
    //here if you created a button like I did to resign the keyboard, you should hide it
    if (textView.text.length == 0) {
        [self setPlaceholder];
    }       
}

Oracle 11g provides a PIVOT operation that does what you want.

Oracle 11g solution

select * from
(select id, k, v from _kv) 
pivot(max(v) for k in ('name', 'age', 'gender', 'status')

(Note: I do not have a copy of 11g to test this on so I have not verified its functionality)

I obtained this solution from: http://orafaq.com/wiki/PIVOT

EDIT -- pivot xml option (also Oracle 11g)
Apparently there is also a pivot xml option for when you do not know all the possible column headings that you may need. (see the XML TYPE section near the bottom of the page located at http://www.oracle.com/technetwork/articles/sql/11g-pivot-097235.html)

select * from
(select id, k, v from _kv) 
pivot xml (max(v)
for k in (any) )

(Note: As before I do not have a copy of 11g to test this on so I have not verified its functionality)

Edit2: Changed v in the pivot and pivot xml statements to max(v) since it is supposed to be aggregated as mentioned in one of the comments. I also added the in clause which is not optional for pivot. Of course, having to specify the values in the in clause defeats the goal of having a completely dynamic pivot/crosstab query as was the desire of this question's poster.

In your .htaccess file , if you are using apache you can try with

ErrorDocument 404 http://www.domain.com/notFound.html

About the INT, TINYINT... These are different data types, INT is 4-byte number, TINYINT is 1-byte number. More information here - INTEGER, INT, SMALLINT, TINYINT, MEDIUMINT, BIGINT.

The syntax of TINYINT data type is TINYINT(M), where M indicates the maximum display width (used only if your MySQL client supports it).

Numeric Type Attributes.

@Controller
public abstract class AbstractController {
    @ModelAttribute("loggedUser")
    public User getLoggedUser() {
        return (User)SecurityContextHolder.getContext().getAuthentication().getPrincipal();
    }
}

You could also use POSIX regular expressions, like

SELECT id FROM groups where name ~* 'administrator'

SELECT 'asd' ~* 'AsD' returns t

I generally use Date if possible. Although it is mutable, the mutators are actually deprecated. In the end it basically wraps a long that would represent the date/time. Conversely, I would use Calendars if I have to manipulate the values.

You can think of it this way: you only use StringBuffer only when you need to have Strings that you can easily manipulate and then convert them into Strings using toString() method. In the same way, I only use Calendar if I need to manipulate temporal data.

For best practice, I tend to use immutable objects as much as possible outside of the domain model. It significantly reduces the chances of any side effects and it is done for you by the compiler, rather than a JUnit test. You use this technique by creating private final fields in your class.

And coming back to the StringBuffer analogy. Here is some code that shows you how to convert between Calendar and Date

String s = "someString"; // immutable string
StringBuffer buf = new StringBuffer(s); // mutable "string" via StringBuffer
buf.append("x");
assertEquals("someStringx", buf.toString()); // convert to immutable String

// immutable date with hard coded format.  If you are hard
// coding the format, best practice is to hard code the locale
// of the format string, otherwise people in some parts of Europe
// are going to be mad at you.
Date date =     new SimpleDateFormat("yyyy-MM-dd", Locale.ENGLISH).parse("2001-01-02");

// Convert Date to a Calendar
Calendar cal = Calendar.getInstance();
cal.setTime(date);

// mutate the value
cal.add(Calendar.YEAR, 1);

// convert back to Date
Date newDate = cal.getTime();

// 
assertEquals(new SimpleDateFormat("yyyy-MM-dd", Locale.ENGLISH).parse("2002-01-02"), newDate);

Go to tools >> nuget >> console and type:

Install-Package System.Configuration.ConfigurationManager 

If you want a specific version:

Install-Package System.Configuration.ConfigurationManager -Version 4.5.0

Your ConfigurationManager dll will now be imported and the code will begin to work.

The only way i could get my ant version updated on the mac from 1.8.2 to 1.9.1 was by following instructions here

http://wiki.eclipse.org/Ant/User_Guide

You can cast your iterable to a list then use .size() on it.

Lists.newArrayList(iterable).size();

For the sake of clarity, the above method will require the following import:

import com.google.common.collect.Lists;

I was getting this error and tried most of the suggestions here. Finally I did a "Clean" on the report project and tried again. It finally worked!!

This is an updated version of aphoria's Answer.

I Replaced PSLIST and PSEXEC with TASKKILL and TASKLIST`. As they seem to work better, I couldn't get PSLIST to run in Windows 7.

Also replaced Sleep with TIMEOUT.

This Was everything i needed to get the script running well, and all the additions was provided by the great guys who posted the comments.

Also if there is a delay before the .exe starts it might be worth inserting a Timeout before the :loop.

@ECHO OFF

TASKKILL NOTEPAD

START "" "C:\Program Files\Windows NT\Accessories\wordpad.exe"

:LOOP
tasklist | find /i "WORDPAD" >nul 2>&1
IF ERRORLEVEL 1 (
  GOTO CONTINUE
) ELSE (
  ECHO Wordpad is still running
  Timeout /T 5 /Nobreak
  GOTO LOOP
)

:CONTINUE
NOTEPAD

Compatibility with older browsers can be a drag, so be adviced.

If that is not a problem then go ahead. Run the snippet. Go to full page view and resize. Center will resize itself with no changes to the left or right divs.

Change left and right values to meet your requirement.

Thank you.

Hope this helps.

#container {_x000D_
  display: flex;_x000D_
}_x000D_
_x000D_
.column.left {_x000D_
  width: 100px;_x000D_
  flex: 0 0 100px;_x000D_
}_x000D_
_x000D_
.column.right {_x000D_
  width: 100px;_x000D_
  flex: 0 0 100px;_x000D_
}_x000D_
_x000D_
.column.center {_x000D_
  flex: 1;_x000D_
  text-align: center;_x000D_
}_x000D_
_x000D_
.column.left,_x000D_
.column.right {_x000D_
  background: orange;_x000D_
  text-align: center;_x000D_
}

<div id="container">_x000D_
  <div class="column left">this is left</div>_x000D_
  <div class="column center">this is center</div>_x000D_
  <div class="column right">this is right</div>_x000D_
</div>

One solution is to run manually a shell function that sets my environment to work or personal, but I am pretty sure that I will often forget to switch to the correct identity resulting in committing under the wrong identity.

That was exactly my problem. I have written a hook script which warns you if you have any github remote and not defined a local username.

Here's how you set it up:

1. Create a directory to hold the global hook

   mkdir -p ~/.git-templates/hooks

2. Tell git to copy everything in ~/.git-templates to your per-project .git directory when you run git init or clone

   git config --global init.templatedir '~/.git-templates'

3. And now copy the following lines to ~/.git-templates/hooks/pre-commit and make the file executable (don't forget this otherwise git won't execute it!)

#!/bin/bash

RED='\033[0;31m' # red color
NC='\033[0m' # no color

GITHUB_REMOTE=$(git remote -v | grep github.com)
LOCAL_USERNAME=$(git config --local user.name)

if [ -n "$GITHUB_REMOTE" ] && [ -z "$LOCAL_USERNAME" ]; then
    printf "\n${RED}ATTENTION: At least one Github remote repository is configured, but no local username. "
    printf "Please define a local username that matches your Github account.${NC} [pre-commit hook]\n\n"
    exit 1
fi

If you use other hosts for your private repositories you have to replace github.com according to your needs.

Now every time you do a git init or git clone git will copy this script to the repository and executes it before any commit is done. If you have not set a local username it will output a warning and won't let you commit.

@Webgr partial answer actually helped me debug this warning @ console log, shame the other part of that answer brought so many downvotes :(

Anyway, here is how I found out what was the cause of this warning in my case:

1. Use Chrome Browser > Hit F12 to bring DevTools
2. Open the drawer menu (in Chrome 3 vertical dots in the upper right)
3. Under Console > check Log XMLHttpRequests option
4. Reload your page that was giving you the error and observe what happens on each ajax request in the console log.

In my case, another plugin was loading 2 .js libraries after each ajax call, that were absolutely not required nor necessary. Disabling the rogue plugin removed the warning from the log. From that point, you can either try to fix the problem yourself (e.g. limit the loading of the scripts to certain pages or events - this is way too specific for an answer here) or contact 3rd party plugin developer to solve it.

Hope this helps someone.

Perhaps you're asking about keeping such things going...

Of course you'll invoke a full table scan for the queries and if the table containing the scores that need to be tallied (aggregations) is large you might want a better performing solution, you can create a secondary table and use rules, such as on insert - you might look into it.

Not all RDBMS engines have rules, though!

First of all you don't use width=300px that's an attribute setting for the tag not CSS, use width: 300px; instead.

I would suggest applying the clearfix technique on the #outerdiv. Clearfix is a general solution to clear 2 floating divs so the parent div will expand to accommodate the 2 floating divs.

<div id='outerdiv' class='clearfix' style='width:600px; background-color: black;'>
    <div style='width:300px; float: left;'>
        <p>xxxxxxxxxxxxxxxxxxxxxxxxxxxxx</p>
    </div>

    <div style='width:300px; float: left;'>
        <p>zzzzzzzzzzzzzzzzzzzzzzzzzzzzz</p>
    </div>
</div>

Here is an example of your situation and what Clearfix does to resolve it.

on Centos 7, this will do it, for Tomcat 7 : (my tomcat install dir: opt/apache-tomcat-7.0.79)

• mkdir /var/lib/tomcat7
• cd /var/lib/tomcat7
• sudo ln -s /opt/apache-tomcat-7.0.79/conf conf
• mkdir /var/log/tomcat7
• cd /var/log/tomcat7
• sudo ln -s /opt/apache-tomcat-7.0.79/logs log

not sure the log link is necessary, the configuration is the critical one.

:

To blank it:

myObject["myVar"]=null;

To remove it:

delete myObject["myVar"]

as you can see in duplicate answers

$Group is an object, but you will actually need to check if $Group.samaccountname.StartsWith("string").

Change $Group.StartsWith("S_G_") to $Group.samaccountname.StartsWith("S_G_").

In the SQL Server, try these steps:

1. Open one database.
2. Click in the option Server Object.
3. Click in Linked Servers.
4. Click in Providers.
5. Right click on Microsoft.ACE.OLEDB.12.0 and click Properties.
6. Uncheck all the options and close.

echo '<a href="' . $folder_path . '">Link text</a>';

Please note that you must use the path relative to your domain and, if the folder path is outside the public htdocs directory, it will not work.

EDIT: maybe i misreaded the question; you have a file on your pc and want to insert the path on the html page, and then send it to the server?

Practice safe computing. Simply go up one level in the hierarchy and don't use a wildcard expression:

cd ..; rm -rf -- <dir-to-remove>

The two dashes -- tell rm that <dir-to-remove> is not a command-line option, even when it begins with a dash.

A chart could make the previous answers easier to understand:

T-Notation - Same order | O-Notation - Upper bound

In English,

On the left, note that there is an upper bound and a lower bound that are both of the same order of magnitude (i.e. g(n) ). Ignore the constants, and if the upper bound and lower bound have the same order of magnitude, one can validly say f(n) = T(g(n)) or f(n) is in big theta of g(n).

Starting with the right, the simpler example, it is saying the upper bound g(n) is simply the order of magnitude and ignores the constant c (just as all big O notation does).

you can try setting the padding instead of the height/width.

The top answer doesn't work for PHP7, because it has wrong encoding, but I could figure the right encoding out with the other answers. This code also sends authentication cookies, which you probably want when dealing with e.g. PHP forums:

julia = function(juliacode) {
    fetch('julia.php', {
        method: "POST",
        credentials: "include", // send cookies
        headers: {
            'Accept': 'application/json, text/plain, */*',
            //'Content-Type': 'application/json'
            "Content-Type": "application/x-www-form-urlencoded; charset=UTF-8" // otherwise $_POST is empty
        },
        body: "juliacode=" + encodeURIComponent(juliacode)
    })
    .then(function(response) {
        return response.json(); // .text();
    })
    .then(function(myJson) {
        console.log(myJson);
    });
}

If you want to send email from your application, the above code is the only way to do it unless you code your own mail client (SMTP) inside your app, or have a server send the mail for you.

For example, you could code your app to invoke a URL on your server which would send the mail for you. Then you simply call the URL from your code.

Note that with the above code you can't attach anything to the email, which the SMTP client method would allow you to do, as well as the server-side method.

Why not just, a=a(~~a) or a(~a)=[]. It's equivalent to the other approaches but certainly less key strokes.

Addressing @Niklas R's comment to @nickanor's answer:

from urllib.error import HTTPError
import urllib.request

def getResponseCode(url):
    try:
        conn = urllib.request.urlopen(url)
        return conn.getcode()
    except HTTPError as e:
        return e.code

Update:

ngKeypress, ngKeydown and ngKeyup are now part of AngularJS.

<!-- you can, for example, specify an expression to evaluate -->
<input ng-keypress="count = count + 1" ng-init="count=0">

<!-- or call a controller/directive method and pass $event as parameter.
     With access to $event you can now do stuff like 
     finding which key was pressed -->
<input ng-keypress="changed($event)">

Read more here:

https://docs.angularjs.org/api/ng/directive/ngKeypress https://docs.angularjs.org/api/ng/directive/ngKeydown https://docs.angularjs.org/api/ng/directive/ngKeyup

Earlier solutions:

Solution 1: Use ng-change with ng-model

<input type="text" placeholder="+639178983214" ng-model="mobileNumber" 
ng-controller="RegisterDataController" ng-change="keydown()">

JS:

function RegisterDataController($scope) {       
   $scope.keydown = function() {
        /* validate $scope.mobileNumber here*/
   };
}

Solution 2. Use $watch

<input type="text" placeholder="+639178983214" ng-model="mobileNumber" 
ng-controller="RegisterDataController">
    

JS:

$scope.$watch("mobileNumber", function(newValue, oldValue) {
    /* change noticed */
});

You can remove public keyword from your functions, because, you have to define a class in order to declare public, private or protected function

If the OP is trying to determine the history that was traversed by a branch when a particular commit was created ("find out what branch a commit comes from given its SHA-1 hash value"), then without the reflog there aren't any records in the Git object database that shows what named branch was bound to what commit history.

(I posted this as an answer in reply to a comment.)

Hopefully this script illustrates my point:

rm -rf /tmp/r1 /tmp/r2; mkdir /tmp/r1; cd /tmp/r1
git init; git config user.name n; git config user.email [email protected]
git commit -m"empty" --allow-empty; git branch -m b1; git branch b2
git checkout b1; touch f1; git add f1; git commit -m"Add f1"
git checkout b2; touch f2; git add f2; git commit -m"Add f2"
git merge -m"merge branches" b1; git checkout b1; git merge b2
git clone /tmp/r1 /tmp/r2; cd /tmp/r2; git fetch origin b2:b2
set -x;
cd /tmp/r1; git log --oneline --graph --decorate; git reflog b1; git reflog b2;
cd /tmp/r2; git log --oneline --graph --decorate; git reflog b1; git reflog b2;

The output shows the lack of any way to know whether the commit with 'Add f1' came from branch b1 or b2 from the remote clone /tmp/r2.

(Last lines of the output here)

+ cd /tmp/r1
+ git log --oneline --graph --decorate
*   f0c707d (HEAD, b2, b1) merge branches
|\
| * 086c9ce Add f1
* | 80c10e5 Add f2
|/
* 18feb84 empty
+ git reflog b1
f0c707d b1@{0}: merge b2: Fast-forward
086c9ce b1@{1}: commit: Add f1
18feb84 b1@{2}: Branch: renamed refs/heads/master to refs/heads/b1
18feb84 b1@{3}: commit (initial): empty
+ git reflog b2
f0c707d b2@{0}: merge b1: Merge made by the 'recursive' strategy.
80c10e5 b2@{1}: commit: Add f2
18feb84 b2@{2}: branch: Created from b1
+ cd /tmp/r2
+ git log --oneline --graph --decorate
*   f0c707d (HEAD, origin/b2, origin/b1, origin/HEAD, b2, b1) merge branches
|\
| * 086c9ce Add f1
* | 80c10e5 Add f2
|/
* 18feb84 empty
+ git reflog b1
f0c707d b1@{0}: clone: from /tmp/r1
+ git reflog b2
f0c707d b2@{0}: fetch origin b2:b2: storing head

I created my own function converting numbers to their corresponding month.

def month_name (number):
    if number == 1:
        return "January"
    elif number == 2:
        return "February"
    elif number == 3:
        return "March"
    elif number == 4:
        return "April"
    elif number == 5:
        return "May"
    elif number == 6:
        return "June"
    elif number == 7:
        return "July"
    elif number == 8:
        return "August"
    elif number == 9:
        return "September"
    elif number == 10:
        return "October"
    elif number == 11:
        return "November"
    elif number == 12:
        return "December"

Then I can call the function. For example:

print (month_name (12))

Outputs:

>>> December

I had similar issue when I entered very big port here:

But when I corrected it to something smaller which is in offset range:

Issue was resolved.

Swift 3:

If you want to go back to the previous view controller

_ = navigationController?.popViewController(animated: true)

If you want to go back to the root view controller

_ = navigationController?.popToRootViewController(animated: true)

If the function is a void, ending the function will return. Otherwise, you need to do an explicit return someValue. As Mark mentioned, you can also throw an exception. What's the context of your question? Do you have a larger code sample with which to show you some ways to exit the function?

There are a few ways to do it. If I want to read and write binary I usually use open(), read(), write(), close(). Which are completely different than doing a byte at a time. You work with integer file descriptors instead of FILE * variables. fileno will get an integer descriptor from a FILE * BTW. You read a buffer full of data, say 32k bytes at once. The buffer is really an array which you can read from really fast because it's in memory. And reading and writing many bytes at once is faster than one at a time. It's called a blockread in Pascal I think, but read() is the C equivalent.

I looked but I don't have any examples handy. OK, these aren't ideal because they also are doing stuff with JPEG images. Here's a read, you probably only care about the part from open() to close(). fbuf is the array to read into, sb.st_size is the file size in bytes from a stat() call.

    fd = open(MASKFNAME,O_RDONLY);
    if (fd != -1) {
      read(fd,fbuf,sb.st_size);
      close(fd);
      splitmask(fbuf,(uint32_t)sb.st_size); // look at lines, etc
      have_mask = 1;
    }

Here's a write: (here pix is the byte array, jwidth and jheight are the JPEG width and height so for RGB color we write height * width * 3 color bytes). It's the # of bytes to write.

void simpdump(uint8_t *pix, char *nm) { // makes a raw aka .data file
  int sdfd;
  sdfd = open(nm,O_WRONLY | O_CREAT);
  if (sdfd == -1) {
    printf("bad open\n");
    exit(-1);
  }
  printf("width: %i height: %i\n",jwidth,jheight);  // to the console
  write(sdfd,pix,(jwidth*jheight*3));
  close(sdfd);
}

Look at man 2 open, also read, write, close. Also this old-style jpeg example.c: https://github.com/LuaDist/libjpeg/blob/master/example.c I'm reading and writing an entire image at once here. But they're binary reads and writes of bytes, just a lot at once.

"But when I try to read from a file it is not outputting correctly." Hmmm. If you read a number 65 that's (decimal) ASCII for an A. Maybe you should look at man ascii too. If you want a 1 that's ASCII 0x31. A char variable is a tiny 8-bit integer really, if you do a printf as a %i you get the ASCII value, if you do a %c you get the character. Do %x for hexadecimal. All from the same number between 0 and 255.

// 24-hour time to 12-hour time 
$time_in_12_hour_format  = date("g:i a", strtotime("13:30"));

// 12-hour time to 24-hour time 
$time_in_24_hour_format  = date("H:i", strtotime("1:30 PM"));

Similar to the answer given by Abdul.

<fieldset>
   <legend>Image</legend>
   <img src="..." class="img-responsive" width="100%" />
</fieldset>

It works properly in FF 29, Opera 12.17, Chromium 34 and in IE9. Yes, it's a weird set of browsers!

After 2 hours of browsing for various alternatives, this is something that worked for me.

My requirement was disabling caching of js and css files in my spring secured web application. But at the same time caching these files "within" a particular session.

Passing a unique id with every request is one of the advised approaches.

And this is what I did :- Instead of

<script language="javascript" src="js/home.js"></script>

I used

<script language="javascript" src="js/home.js?id=${pageContext.session.id}"></script>

Any cons to the above approach are welcome. Security Issues ?

rm -rf *

Would remove everything (folders & files) in the current directory.

But be careful! Only execute this command if you are absolutely sure, that you are in the right directory.

In Scala use the well known Apache Commons validators.

http://mvnrepository.com/artifact/commons-validator/commons-validator/1.4.1

libraryDependencies += "commons-validator" % "commons-validator" % "1.4.1"


import org.apache.commons.validator.routines._

/**
 * Validates if the passed ip is a valid IPv4 or IPv6 address.
 *
 * @param ip The IP address to validate.
 * @return True if the passed IP address is valid, false otherwise.
 */  
 def ip(ip: String) = InetAddressValidator.getInstance().isValid(ip)

Following the test's of the method ip(ip: String):

"The `ip` validator" should {
  "return false if the IPv4 is invalid" in {
    ip("123") must beFalse
    ip("255.255.255.256") must beFalse
    ip("127.1") must beFalse
    ip("30.168.1.255.1") must beFalse
    ip("-1.2.3.4") must beFalse
  }

  "return true if the IPv4 is valid" in {
    ip("255.255.255.255") must beTrue
    ip("127.0.0.1") must beTrue
    ip("0.0.0.0") must beTrue
  }

  //IPv6
  //@see: http://www.ronnutter.com/ipv6-cheatsheet-on-identifying-valid-ipv6-addresses/
  "return false if the IPv6 is invalid" in {
    ip("1200::AB00:1234::2552:7777:1313") must beFalse
  }

  "return true if the IPv6 is valid" in {
    ip("1200:0000:AB00:1234:0000:2552:7777:1313") must beTrue
    ip("21DA:D3:0:2F3B:2AA:FF:FE28:9C5A") must beTrue
  }
}

You are missing two closing parentheses...and I am not sure an ampersand works as a string concatenation operator. Try '+'

SELECT dbo.COL_V_Cost_GEMS_Detail.TNG_SYS_NR AS [EHP Code], 
dbo.COL_TBL_VCOURSE.TNG_NA AS [Course Title], 
LTRIM(RTRIM(FCT_TYP_CD)) + ') AND (' + LTRIM(RTRIM(DEP_TYP_ID)) + ')' AS [Course Owner]

If you just made a migration, you can rollback and then make your migration again.

To rollback you can do as many steps as you want:

rake db:rollback STEP=1

Or, if you are using Rails 5.2 or newer:

rails db:rollback STEP=1

Then, you can just make the migration again:

def change
  add_column :profiles, :show_attribute, :boolean, default: true
end

Don't forget to rake db:migrate and if you are using heroku heroku run rake db:migrate

You have a character = STQ8QGpaM4CU6149665!7084880820, and you have a another column = 7084880820.

If you want to get only this in excel using the formula: STQ8QGpaM4CU6149665!, use this:

=REPLACE(H11,SEARCH(J11,H11),LEN(J11),"")

H11 is an old character and for starting number use search option then for no of character needs to replace use len option then replace to new character. I am replacing this to blank.

I feel I want answer this question even there some good answers ,

according to documentation TransformationMethod do our mission

TransformationMethod

TextView uses TransformationMethods to do things like replacing the characters of passwords with dots, or keeping the newline characters from causing line breaks in single-line text fields.

Notice I use butter knife, but its the same if user check show password

@OnCheckedChanged(R.id.showpass)
    public void onChecked(boolean checked){
        if(checked){
            et_password.setTransformationMethod(null);
        }else {
            et_password.setTransformationMethod(new PasswordTransformationMethod());
            
        }
       // cursor reset his position so we need set position to the end of text
        et_password.setSelection(et_password.getText().length());
    }

For all the databases you have on the server:

mysql> SELECT SCHEMA_NAME 'database', default_character_set_name 'charset', DEFAULT_COLLATION_NAME 'collation' FROM information_schema.SCHEMATA;

Output:

+----------------------------+---------+--------------------+
| database                   | charset | collation          |
+----------------------------+---------+--------------------+
| information_schema         | utf8    | utf8_general_ci    |
| my_database                | latin1  | latin1_swedish_ci  |
...
+----------------------------+---------+--------------------+

For a single Database:

mysql> USE my_database;
mysql> show variables like "character_set_database";

Output:

    +----------------------------+---------+
    | Variable_name              |  Value  |
    +----------------------------+---------+
    | character_set_database     |  latin1 | 
    +----------------------------+---------+

Getting the collation for Tables:

mysql> USE my_database;
mysql> SHOW TABLE STATUS WHERE NAME LIKE 'my_tablename';

OR - will output the complete SQL for create table:

mysql> show create table my_tablename

Getting the collation of columns:

mysql> SHOW FULL COLUMNS FROM my_tablename;

output:

+---------+--------------+--------------------+ ....
| field   | type         | collation          |
+---------+--------------+--------------------+ ....
| id      | int(10)      | (NULL)             |
| key     | varchar(255) | latin1_swedish_ci  |
| value   | varchar(255) | latin1_swedish_ci  |
+---------+--------------+--------------------+ ....

With C++11 you can use the constexpr keyword and write in your header:

private:
    static constexpr const char* SOMETHING = "something";

Notes:

• constexpr makes SOMETHING a constant pointer so you cannot write

  SOMETHING = "something different";
  

  later on.

• Depending on your compiler, you might also need to write an explicit definition in the .cpp file:

  constexpr const char* MyClass::SOMETHING;
  

In the new Jenkins 2.0 pipeline (previously named the Workflow Plugin), this is done differently for:

• The main repository
• Other additional repositories

Here I am specifically referring to the Multibranch Pipeline version 2.9.

Main repository

This is the repository that contains your Jenkinsfile.

In the Configure screen for your pipeline project, enter your repository name, etc.

Do not use Additional Behaviors > Check out to a sub-directory. This will put your Jenkinsfile in the sub-directory where Jenkins cannot find it.

In Jenkinsfile, check out the main repository in the subdirectory using dir():

dir('subDir') {
    checkout scm
}

Additional repositories

If you want to check out more repositories, use the Pipeline Syntax generator to automatically generate a Groovy code snippet.

In the Configure screen for your pipeline project:

1. Select Pipeline Syntax. In the Sample Step drop down menu, choose checkout: General SCM.
2. Select your SCM system, such as Git. Fill in the usual information about your repository or depot.
3. Note that in the Multibranch Pipeline, environment variable env.BRANCH_NAME contains the branch name of the main repository.
4. In the Additional Behaviors drop down menu, select Check out to a sub-directory
5. Click Generate Groovy. Jenkins will display the Groovy code snippet corresponding to the SCM checkout that you specified.
6. Copy this code into your pipeline script or Jenkinsfile.

It means that no rows will be returned if @region is NULL, when used in your first example, even if there are rows in the table where Region is NULL.

When ANSI_NULLS is on (which you should always set on anyway, since the option to not have it on is going to be removed in the future), any comparison operation where (at least) one of the operands is NULL produces the third logic value - UNKNOWN (as opposed to TRUE and FALSE).

UNKNOWN values propagate through any combining boolean operators if they're not already decided (e.g. AND with a FALSE operand or OR with a TRUE operand) or negations (NOT).

The WHERE clause is used to filter the result set produced by the FROM clause, such that the overall value of the WHERE clause must be TRUE for the row to not be filtered out. So, if an UNKNOWN is produced by any comparison, it will cause the row to be filtered out.

@user1227804's answer includes this quote:

If both sides of the comparison are columns or compound expressions, the setting does not affect the comparison.

from SET ANSI_NULLS^*

However, I'm not sure what point it's trying to make, since if two NULL columns are compared (e.g. in a JOIN), the comparison still fails:

create table #T1 (
    ID int not null,
    Val1 varchar(10) null
)
insert into #T1(ID,Val1) select 1,null

create table #T2 (
    ID int not null,
    Val1 varchar(10) null
)
insert into #T2(ID,Val1) select 1,null

select * from #T1 t1 inner join #T2 t2 on t1.ID = t2.ID and t1.Val1 = t2.Val1

The above query returns 0 rows, whereas:

select * from #T1 t1 inner join #T2 t2 on t1.ID = t2.ID and (t1.Val1 = t2.Val1 or t1.Val1 is null and t2.Val1 is null)

Returns one row. So even when both operands are columns, NULL does not equal NULL. And the documentation for = doesn't have anything to say about the operands:

When you compare two NULL expressions, the result depends on the ANSI_NULLS setting:

If ANSI_NULLS is set to ON, the result is NULL¹, following the ANSI convention that a NULL (or unknown) value is not equal to another NULL or unknown value.

If ANSI_NULLS is set to OFF, the result of NULL compared to NULL is TRUE.

Comparing NULL to a non-NULL value always results in FALSE².

However, both ¹ and ² are incorrect - the result of both comparisons is UNKNOWN.

^*The cryptic meaning of this text was finally discovered years later. What it actually means is that, for those comparisons, the setting has no effect and it always acts as if the setting were ON. Would have been clearer if it had stated that SET ANSI_NULLS OFF was the setting that had no affect.

You can add a new formula for unique record count

=IF(COUNTIF($A$2:A2,A2)>1,0,1)

Now you can use a pivot table and get a SUM of unique record count. This solution works best if you have two or more rows where the same value exist, but you want the pivot table to report an unique count.

In Azure Data warehouse also this occurs sometimes, because temporary tables created for a user session.. I got the same issue fixed by reconnecting the database,

I stopped getting this exception when I installed default-jdk using apt. I'm running Ubuntu 14.04 (Trusty Tahr), and the problem appears to have been the result of having a "headless" Java installed. All I did was:

sudo apt-get install default-jdk

You may want to comment out the DL is deprecated, please use Fiddle warning at

C:\Ruby200\lib\ruby\2.0.0\dl.rb

since it’s annoying and you are not the irb/pry or some other gems code owner

if (data?.trim().length > 0) {
   //use data
}

the ?. optional chaining operator will short-circuit and return undefined if data is nullish (null or undefined) which will evaluate to false in the if expression.

For windows 2012 R2 the following would work:

    forfiles /p "c:\FOLDERpath" /d -30 /c "cmd /c del @path"

to see the files which will be deleted use this

    forfiles /p "c:\FOLDERpath" /d -30 /c "cmd /c echo @path @fdate"

If you are using WAMPServer 3 See bottom of answer

For WAMPServer versions <= 2.5

By default Wampserver comes configured as securely as it can, so Apache is set to only allow access from the machine running wamp. Afterall it is supposed to be a development server and not a live server.

Also there was a little error released with WAMPServer 2.4 where it used the old Apache 2.2 syntax instead of the new Apache 2.4 syntax for access rights.

You need to change the security setting on Apache to allow access from anywhere else, so edit your httpd.conf file.

Change this section from :

#   onlineoffline tag - don't remove
     Order Deny,Allow
     Deny from all
     Allow from 127.0.0.1
     Allow from ::1
     Allow from localhost

To :

#   onlineoffline tag - don't remove
    Require local
    Require ip 192.168.0

The Require local allows access from these ip's 127.0.0.1 & localhost & ::1.

The statement Require ip 192.168.0 will allow you to access the Apache server from any ip on your internal network. Also it will allow access using the server mechines actual ip address from the server machine, as you are trying to do.

WAMPServer 3 has a different method

In version 3 and > of WAMPServer there is a Virtual Hosts pre defined for localhost so you have to make the access privilage amendements in the Virtual Host definition config file

First dont amend the httpd.conf file at all, leave it as you found it.

Using the menus, edit the httpd-vhosts.conf file.

It should look like this :

<VirtualHost *:80>
    ServerName localhost
    DocumentRoot D:/wamp/www
    <Directory  "D:/wamp/www/">
        Options +Indexes +FollowSymLinks +MultiViews
        AllowOverride All
        Require local
    </Directory>
</VirtualHost>

Amend it to

<VirtualHost *:80>
    ServerName localhost
    DocumentRoot D:/wamp/www
    <Directory  "D:/wamp/www/">
        Options +Indexes +FollowSymLinks +MultiViews
        AllowOverride All
        Require all granted
    </Directory>
</VirtualHost>

Hopefully you will have created a Virtual Host for your project and not be using the wamp\www folder for your site. In that case leave the localhost definition alone and make the change only to your Virtual Host.

Dont forget to restart Apache after making this change

This function returns the actual used range to the lower right limit. It returns "Nothing" if the sheet is empty.

'2020-01-26
Function fUsedRange() As Range
Dim lngLastRow As Long
Dim lngLastCol As Long
Dim rngLastCell As Range
    On Error Resume Next
    Set rngLastCell = ActiveSheet.Cells.Find("*", searchorder:=xlByRows, searchdirection:=xlPrevious)
    If rngLastCell Is Nothing Then  'look for data backwards in rows
        Set fUsedRange = Nothing
        Exit Function
    Else
        lngLastRow = rngLastCell.Row
    End If
    Set rngLastCell = ActiveSheet.Cells.Find("*", searchorder:=xlByColumns, searchdirection:=xlPrevious)
    If rngLastCell Is Nothing Then  'look for data backwards in columns
        Set fUsedRange = Nothing
        Exit Function
    Else
        lngLastCol = rngLastCell.Column
    End If
    Set fUsedRange = ActiveSheet.Range(Cells(1, 1), Cells(lngLastRow, lngLastCol))  'set up range
End Function

It's fatal. The remote server has sent you a RST packet, which indicates an immediate dropping of the connection, rather than the usual handshake. This bypasses the normal half-closed state transition. I like this description:

"Connection reset by peer" is the TCP/IP equivalent of slamming the phone back on the hook. It's more polite than merely not replying, leaving one hanging. But it's not the FIN-ACK expected of the truly polite TCP/IP converseur.

In windows :

1. Open run type %APPDATA%\Subversion\auth\svn.simple
2. This will open svn.simple folder
3. you will find a file e.g. Big Alpha Numeric file
4. Delete that file.
5. Restart eclipse.
6. Try to edit file from project and commit it
7. you can see dialog asking userName password

It worked for me.... ;)

Why can't we do this.

Give the optional argument a default value. In that way, the caller of the function don't necessarily need to pass the value of the argument. The argument takes the default value. And easily that argument becomes optional for the client.

For e.g.

void foo(int a, int b = 0);

Here b is an optional argument.

In mysql 8.0.13 zip package initializing.

1. Verify that data folder is empty.

2. Under the mysql bin path run

   mysqld.exe --initialize-insecure

3. Add to my.ini native mysql

   [mysqld]

   default_authentication_plugin=mysql_native_password

I access main properties using $root.

Vue.component("example", { 
    template: `<div>$root.message</div>`
});
...
<example></example>

Another time stamp based hack:

1. Create an anchor: touch /tmp/ts
2. Reinstall the package to be removed: python setup.py install --prefix=<PREFIX>
3. Remove files what are more recent than the anchor file: find <PREFIX> -cnewer /tmp/ts | xargs rm -r

1. have gif file.
2. push gif file to your github repo
3. click on that file on the github repo to get github address of the gif
4. in your README file: ![alt-text](link)

example below: ![grab-landing-page](https://github.com/winnie1312/grab/blob/master/grab-landingpage-winnie.gif)

"Copy on write" means more or less what it sounds like: everyone has a single shared copy of the same data until it's written, and then a copy is made. Usually, copy-on-write is used to resolve concurrency sorts of problems. In ZFS, for example, data blocks on disk are allocated copy-on-write; as long as there are no changes, you keep the original blocks; a change changed only the affected blocks. This means the minimum number of new blocks are allocated.

These changes are also usually implemented to be transactional, ie, they have the ACID properties. This eliminates some concurrency issues, because then you're guaranteed that all updates are atomic.

If the javascript file is loaded from the admin dashboard, this javascript function will give you the root of your WordPress installation. I use this a lot when I'm building plugins that need to make ajax requests from the admin dashboard.

function getHomeUrl() {
  var href = window.location.href;
  var index = href.indexOf('/wp-admin');
  var homeUrl = href.substring(0, index);
  return homeUrl;
}

Use the following after the loop.

.TrimEnd(',')

or simply change to

string commaSeparatedList = input.Aggregate((a, x) => a + ", " + x)

This is a FAQ. You can put //NOSONAR on the line triggering the warning. I prefer using the FindBugs mechanism though, which consists in adding the @SuppressFBWarnings annotation:

@edu.umd.cs.findbugs.annotations.SuppressFBWarnings(
    value = "NAME_OF_THE_FINDBUGS_RULE_TO_IGNORE",
    justification = "Why you choose to ignore it")

How about this: It is Somewhat Efficient & Somewhat Simple. Only need to join '2' parts of url path:

def UrlJoin(a , b):
    a, b = a.strip(), b.strip()
    a = a if a.endswith('/') else a + '/'
    b = b if not b.startswith('/') else b[1:]
    return a + b

OR: More Conventional, but Not as efficient if joining only 2 url parts of a path.

def UrlJoin(*parts):
    return '/'.join([p.strip().strip('/') for p in parts])

Test Cases:

>>> UrlJoin('https://example.com/', '/TestURL_1')
'https://example.com/TestURL_1'

>>> UrlJoin('https://example.com', 'TestURL_2')
'https://example.com/TestURL_2'

Note: I may be splitting hairs here, but it is at least good practice and potentially more readable.

You can use indexOf(). Like:

var Color = ["blue", "black", "brown", "gold"];
var a = Color.indexOf("brown");
alert(a);

The indexOf() method searches the array for the specified item, and returns its position. And return -1 if the item is not found.

If you want to search from end to start, use the lastIndexOf() method:

    var Color = ["blue", "black", "brown", "gold"];
    var a = Color.lastIndexOf("brown");
    alert(a);

The search will start at the specified position, or at the end if no start position is specified, and end the search at the beginning of the array.

Returns -1 if the item is not found.

Your path includes " at the beginning and at the end. Drop the quotes, and it'll be ok.

The \" at the beginning and end of what you see in VS Debugger is what tells us that the quotes are literally in the string.

In case you have a.my-company.com and b.my-company.com instead of just a.com and b.com you can issue a cookie for .my-company.com domain - it will be accepted and sent to both of the domains.

There are a lot of good answers here, but they're not all as straightforward as JXcore.

Once you have JXcore installed on windows, all you have to do is run:

jx package app.js "myAppName" -native

This will produce a .exe file that you can distribute and can be executed without any external dependencies whatsoever (you don't even need JXcore nor Node.js on the system).

Here's the documentation on that functionality: http://jxcore.com/packaging-code-protection/#cat-74

Edit 2018

That project is now dead but it is still hosted here: https://github.com/jxcore/jxcore-release (thanks @Elmue)

I just wanted to provide the most comprehensible solution, the anti code-golf version.

from itertools import combinations

l = ["x", "y", "z", ]

def powerset(items):
    combo = []
    for r in range(len(items) + 1):
        #use a list to coerce a actual list from the combinations generator
        combo.append(list(combinations(items,r)))
    return combo

l_powerset = powerset(l)

for i, item in enumerate(l_powerset):
    print "All sets of length ", i
    print item

The results

All sets of length 0

[()]

All sets of length 1

[('x',), ('y',), ('z',)]

All sets of length 2

[('x', 'y'), ('x', 'z'), ('y', 'z')]

All sets of length 3

[('x', 'y', 'z')]

For more see the itertools docs, also the wikipedia entry on power sets

I needed to adjust the width of some tooltips. But not an overall setting. So I ended up doing this:

CSS

.large-tooltip .tooltip-inner {
    max-width: 300px;
}
@media screen and (max-width: 300px) {
  .large-tooltip .tooltip-inner {
    max-width: 100%;
  }
}

JQuery

$('[data-toggle="tooltip"]')
    .tooltip()
    .on('shown.bs.tooltip', function(e) {
        /**
         * If the item that triggered the event has class 'large-tooltip'
         * then also add it to the currently open tooltip
         */
        if ($(this).hasClass('large-tooltip')) {
            $('body').find('.tooltip[role="tooltip"].show').addClass('large-tooltip');
        }
    });

Html

<img src="/theimage.jpg" class="large-tooltip" data-toggle="tooltip" data-html="true" title="Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum." />

Deep copy literally performs a deep copy. It means, that if your class has some fields that are references, their values will be copied, not references themselves. If, for example you have two instances of a class, A & B with fields of reference type, and perform a deep copy, changing a value of that field in A won't affect a value in B. And vise-versa. Things are different with shallow copy, because only references are copied, therefore, changing this field in a copied object would affect the original object.

What type of a copy does a copy constructor does?

It is implementation - dependent. This means that there are no strict rules about that, you can implement it like a deep copy or shallow copy, however as far as i know it is a common practice to implement a deep copy in a copy constructor. A default copy constructor performs a shallow copy though.

My preferred approach to this problem is to create a SASS mixin utilizing existing Bootstrap variables based on the make-grid-columns mixin.

// Custom Grid Columns
// 
// $name - determines the class names: eg. ".col-5ths, .col-sm-5ths ..."
// $size - determines the width (2.4 is one fifth of 12, the default number of columns)
@mixin custom-grid-columns($name, $size, $grid-columns: $grid-columns, $breakpoints: $grid-breakpoints) {
    $columns: round($grid-columns / $size);

    %custom-grid-column {
        @include make-col-ready();
    }

    @each $breakpoint in map-keys($breakpoints) {
        $infix: breakpoint-infix($breakpoint, $breakpoints);

        .col#{$infix}-#{$name} {
            @extend %custom-grid-column;
        }

        @include media-breakpoint-up($breakpoint, $breakpoints) {
            // Create column
            .col#{$infix}-#{$name} {
                @include make-col($size);
            }

            // Create offset
            @if not ($infix=="") {
                .offset#{$infix}-#{$name} {
                    @include make-col-offset($size);
                }
            }
        }
    }
}

Then you can call the mixin to generate the custom column and offset classes.

@include custom-grid-columns('5ths', 2.4);

I know I'm answering an old question, but it looks like there's a new way to do this with interactively checking out:

git checkout -p bc66559

Credit to Can I interactively pick hunks from another git commit?

For me, I wanted to start the mongo in shell (irrelevant of the exact context of the question, but having the same error message before even starting the mongo in shell)

The process 'MongoDB Service' wasn't running in Services

Start cmd as Administrator and type,

net start MongoDB

Just to see MongoDB is up and running just type mongo, in cmd it will give Mongo version details and Mongo Connection URL

I know this is a very old question, but I've been asked by someone else something similar.

I don't have TeraData, but can't you do the following?

SELECT employee_number,
       course_code,
       MAX(course_completion_date)                                     AS max_course_date,
       MAX(course_completion_date) OVER (PARTITION BY employee_number) AS max_date
FROM employee_course_completion
WHERE course_code IN ('M910303', 'M91301R', 'M91301P')
GROUP BY employee_number, course_code

The GROUP BY now ensures one row per course per employee. This means that you just need a straight MAX() to get the max_course_date.

Before your GROUP BY was just giving one row per employee, and the MAX() OVER() was trying to give multiple results for that one row (one per course).

Instead, you now need the OVER() clause to get the MAX() for the employee as a whole. This is now legitimate because each individual row gets just one answer (as it is derived from a super-set, not a sub-set). Also, for the same reason, the OVER() clause now refers to a valid scalar value, as defined by the GROUP BY clause; employee_number.

Perhaps a short way of saying this would be that an aggregate with an OVER() clause must be a super-set of the GROUP BY, not a sub-set.

Create your query with a GROUP BY at the level that represents the rows you want, then specify OVER() clauses if you want to aggregate at a higher level.

You can run the top command (to run non-interactively, type top -b -n 1). To see applications which are leaking memory, look at the following columns:

• RPRVT - resident private address space size
• RSHRD - resident shared address space size
• RSIZE - resident memory size
• VPRVT - private address space size
• VSIZE - total memory size

Try using os.makedirs:

import os
import errno

try:
    os.makedirs(<path>)
except OSError as e:
    if errno.EEXIST != e.errno:
        raise

Swift uses the same cocoa-touch API. You can call all the same methods, but they will use Swift's syntax. In this example you can do something like this:

self.simpleLabel.text = "message"

Note the setText method isn't available. Setting the label's text with = will automatically call the setter in swift.

This should work fine everywhere templates are supported. Explicit template instantiation is part of the C++ standard.

You're not including the standard <string> header.

You got [un]lucky that some of its pertinent definitions were accidentally made available by the other standard headers that you did include ... but operator<< was not.

• https://stackoverflow.com/a/20937531/560648

I had the same problem, but it was a 300GB mysql dump and I wanted to get rid of the DROP and change CREATE TABLE to CREATE TABLE IF NOT EXISTS so didn't want to run two invocations of sed. I wrote this quick Ruby script to dupe the file with those changes:

#!/usr/bin/env ruby

matchers={
    %q/^CREATE TABLE `foo`/ => %q/CREATE TABLE IF NOT EXISTS `foo`/,
    %q/^DROP TABLE IF EXISTS `foo`;.*$/ => "-- DROP TABLE IF EXISTS `foo`;"
}

matchers.each_pair { |m,r|
    STDERR.puts "%s: %s" % [ m, r ]
}

STDIN.each { |line|
    #STDERR.puts "line=#{line}"
    line.chomp!
    unless matchers.length == 0
        matchers.each_pair { |m,r|
            re=/#{m}/
            next if line[re].nil?
            line.sub!(re,r)
            STDERR.puts "Matched: #{m} -> #{r}"
            matchers.delete(m)
            break
        }
    end
    puts line
}

Invoked like

./mreplace.rb < foo.sql > foo_two.sql

optimized from spacedrop answer ...

ls $(pwd)/*

and you can use ls options

ls -alrt $(pwd)/*

xcopy  e:\source_folder f:\destination_folder /e /i /h

The /h is just in case there are hidden files. The /i creates a destination folder if there are muliple source files.

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

I solved this issue by creating a new virtual device and launching it from the AVD manager. The device takes a few minutes to start, you just have to wait. Then you can run your application on the already started device.

The problem happens when you

• Import project folders into the eclipse workspace.(when projects use different Jre).
• Update or Reinstall eclipse
• Change Jre or Build related Settings.
• Or by there is a configuration mismatch.

You get two errors for each misconfigured files.

• The project cannot be built until build path errors are resolved.
• Unbound classpath container: 'JRE System Library.

If the no. of projects having problem is few:

1. Select each project and apply Quick fix(Ctrl+1)
2. Either Replace the project's JRE with default JRE or Specify Alternate JRE (or JDK).

You can do the same by right-click project-->Properties(from context menu)-->Java Build Path-->Libraries-->select current unbound library -->Remove-->Add Libraries-->Jre System library-->select default or alternate Jre.

Or directly choose Build Path-->Add libraries in project's context menu.

But the best way to get rid of such problem when you have many projects is:

EITHER

1. Open the current workspace (in which your project is) in File Explorer.
2. Delete all org.eclipse.jdt.core.prefs file present in .settings folder of your imported projects.(Be careful while deleting. Don't delete any files or folders inside .metadata folder.)**
3. Now,Select the .classpath files of projects (those with errors) and open them in a powerful text editor(such as Notepad++).
4. Find the line similar to <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6"/> and replace it with <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
5. Save all the files. And Refresh or restart Eclipse IDE. All the problems are gone.

OR

Get the JRE used by the projects and install on your computer and then specify it..

You need to inject mock inside the class you're testing. At the moment you're interacting with the real object, not with the mock one. You can fix the code in a following way:

void testAbc(){
     myClass.myObj = myInteface;
     myClass.abc();
     verify(myInterface).myMethodToBeVerified(new String("a"), new String("b"));
}

although it would be a wiser choice to extract all initialization code into @Before

@Before
void setUp(){
     myClass = new myClass();
     myClass.myObj = myInteface;
}

@Test
void testAbc(){
     myClass.abc();
     verify(myInterface).myMethodToBeVerified(new String("a"), new String("b"));
}

<style type="text/css">
 .topcorner{
  position:absolute;
  top:10;
  right:15;
  }
</style>

You ca also use this in CSS external file.

You didn't specify a GradientType:

background: #f0f0f0; /* Old browsers */
background: -moz-linear-gradient(top, #ffffff 0%, #eeeeee 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#ffffff), color-stop(100%,#eeeeee)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top, #ffffff 0%,#eeeeee 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top, #ffffff 0%,#eeeeee 100%); /* Opera11.10+ */
background: -ms-linear-gradient(top, #ffffff 0%,#eeeeee 100%); /* IE10+ */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffffff', endColorstr='#eeeeee',GradientType=0 ); /* IE6-9 */
background: linear-gradient(top, #ffffff 0%,#eeeeee 100%); /* W3C */

source: http://www.colorzilla.com/gradient-editor/

Several answers here refer to https://github.com/nirvdrum/svn2git, but for large repositories this can be slow. I had a try using https://github.com/svn-all-fast-export/svn2git instead which is a tool with exactly the same name but was used to migrate KDE from SVN to Git.

Slightly more work to set it up but when done the conversion itself for me took minutes where the other script spent hours.

For me to make it work again I just deleted the files

ib_logfile0

and

ib_logfile1

.

from :

/Applications/MAMP/db/mysql56/ib_logfile0 

Mac 10.13.3
MAMP:Version 4.3 (853)

To search for files in /target_directory and all its sub-directories, that have been modified in the last 60 minutes:

$ find /target_directory -type f -mmin -60

To find the most recently modified files, sorted in the reverse order of update time (i.e., the most recently updated files first):

$ find /etc -type f -printf '%TY-%Tm-%Td %TT %p\n' | sort -r

Simply just divide the numbers, it gives yuh the decimal format and even the numerical format. using S<->D

For example: 11/3 gives you 3.666667 and 3 2/3 (Swap using S<->D). Here the '2' from 2/3 is your mod value.

Similarly 18/6 gives you 14.833333 and 14 5/6 (Swap using S<->D). Here the '5' from 5/6 is your mod value.

I had the same error, but it was caused by the package manager process port being already used (port 8081).

To fix, I just ran the react-native by specifying a different port, see below.

react-native run-ios --port 8090

It is worth pointing out that if you use json_decode(file_get_contents("php://input")) (as others have mentioned), this will fail if the string is not valid JSON.

This can be simply resolved by first checking if the JSON is valid. i.e.

function isValidJSON($str) {
   json_decode($str);
   return json_last_error() == JSON_ERROR_NONE;
}

$json_params = file_get_contents("php://input");

if (strlen($json_params) > 0 && isValidJSON($json_params))
  $decoded_params = json_decode($json_params);

Edit: Note that removing strlen($json_params) above may result in subtle errors, as json_last_error() does not change when null or a blank string is passed, as shown here: http://ideone.com/va3u8U

Let's suppose you want to replace line 4 with the text "different". You can use AWK like so:

awk '{ if (NR == 4) print "different"; else print $0}' input_file.txt > output_file.txt

AWK considers the input to be "records" divided into "fields". By default, one line is one record. NR is the number of records seen. $0 represents the current complete record (while $1 is the first field from the record and so on; by default the fields are words from the line).

So, if the current line number is 4, print the string "different" but otherwise print the line unchanged.

In AWK, program code enclosed in { } runs once on each input record.

You need to quote the AWK program in single-quotes to keep the shell from trying to interpret things like the $0.

EDIT: A shorter and more elegant AWK program from @chepner in the comments below:

awk 'NR==4 {$0="different"} { print }' input_file.txt

Only for record (i.e. line) number 4, replace the whole record with the string "different". Then for every input record, print the record.

Clearly my AWK skills are rusty! Thank you, @chepner.

EDIT: and see also an even shorter version from @Dennis Williamson:

awk 'NR==4 {$0="different"} 1' input_file.txt

How this works is explained in the comments: the 1 always evaluates true, so the associated code block always runs. But there is no associated code block, which means AWK does its default action of just printing the whole line. AWK is designed to allow terse programs like this.

The above problem can also be solved using ConstraintLayout through Guidelines.

Below is the snippet.

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">

<android.support.constraint.Guideline
    android:id="@+id/upperGuideLine"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    app:layout_constraintGuide_percent="0.68" />

<Gallery
    android:id="@+id/gallery"
    android:layout_width="0dp"
    android:layout_height="0dp"
    app:layout_constraintBottom_toTopOf="@+id/lowerGuideLine"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="@+id/upperGuideLine" />

<android.support.constraint.Guideline
    android:id="@+id/lowerGuideLine"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    app:layout_constraintGuide_percent="0.84" />

</android.support.constraint.ConstraintLayout>

This will reset the time in the docker server:

docker run --rm --privileged alpine hwclock -s

Next time you create a container the clock should be correct.

Source: https://github.com/docker/for-mac/issues/2076#issuecomment-353749995

That would be:

b.rstrip('\n')

If you want to strip space from each and every line, you might consider instead:

a.read().splitlines()

This will give you a list of lines, without the line end characters.

This error occurred for me when upgrading an Xcode 8 project to run in Xcode 9, however the iOS Base SDK in the Build Settings is still at the previous version of iPhoneOS10.3.sdk and says SDK not found. However that application still builds and runs on a device but it fails to launch. Updating the iOS Base SDK to iOS 11.0 fixes this launch problem.

To answer your first question: yes it is feasible to develop an android application in pure python, in order to achieve this I suggest you use BeeWare, which is just a suite of python tools, that work together very well and they enable you to develop platform native applications in python.

checkout this video by the creator of BeeWare that perfectly explains and demonstrates it's application

How it works

Android's preferred language of implementation is Java - so if you want to write an Android application in Python, you need to have a way to run your Python code on a Java Virtual Machine. This is what VOC does. VOC is a transpiler - it takes Python source code, compiles it to CPython Bytecode, and then transpiles that bytecode into Java-compatible bytecode. The end result is that your Python source code files are compiled directly to a Java .class file, which can be packaged into an Android application.

VOC also allows you to access native Java objects as if they were Python objects, implement Java interfaces with Python classes, and subclass Java classes with Python classes. Using this, you can write an Android application directly against the native Android APIs.

Once you've written your native Android application, you can use Briefcase to package your Python code as an Android application.

Briefcase is a tool for converting a Python project into a standalone native application. You can package projects for:

• Mac
• Windows
• Linux
• iPhone/iPad
• Android
• AppleTV
• tvOS.

You can check This native Android Tic Tac Toe app written in Python, using the BeeWare suite. on GitHub

in addition to the BeeWare tools, you'll need to have a JDK and Android SDK installed to test run your application.

and to answer your second question: a good environment can be anything you are comfortable with be it a text editor and a command line, or an IDE, if you're looking for a good python IDE I would suggest you try Pycharm, it has a community edition which is free, and it has a similar environment as android studio, due to to the fact that were made by the same company.

I hope this has been helpful

Just have a materialized view then you don't have to worry about all other factors. This is only going to work if space and refresh time is not a big deal.. materialized views are pretty cool.

This is caused by the regional settings of your computer.

When you paste data into excel it is only a bunch of strings (not dates).

Excel has some logic in it to recognize your current data formats as well as a few similar date formats or obvious date formats where it can assume it is a date. When it is able to match your pasted in data to a valid date then it will format it as a date in the cell it is in.

Your specific example is due to your list of dates is formatted as "m/d/yy" which is US format. it pastes correctly in my excel because I have my regional setting set to "US English" (even though I'm Canadian :) )

If you system is set to Canadian English/French format then it will expect "d/m/yy" format and not recognize any date where the month is > 13.

The best way to import data, that contains dates, into excel is to copy it in this format.

2011-04-22
2011-12-19
2011-11-04
2011-12-08
2011-09-27
2011-09-27
2011-04-01

Which is "yyyy-MM-dd", this format is recognized the same way on every computer I have ever seen (is often refered to as ODBC format or Standard format) where the units are always from greatest to least weight ("yyyy-MM-dd HH:mm:ss.fff") another side effect is it will sort correctly as a string.

To avoid swaping your regional settings back and forth you may consider writting a macro in excel to paste the data in. a simple popup format and some basic logic to reformat the dates would not be too difficult.

That looks more explicit for me:

int? id = outputIdParam.Value is DbNull ? default(int?) : outputIdParam.Value;

I'm sending files(array) using formData in vuejs
for me below code is working

        if(this.requiredDocumentForUploads.length > 0) {
            this.requiredDocumentForUploads.forEach(file => {
                var name = file.attachment_type  // attachment_type is using for naming
                if(document.querySelector("[name=" + name + "]").files.length > 0) {
                    formData.append("requiredDocumentForUploadsNew[" + name + "]", document.querySelector("[name=" + name + "]").files[0])
                }
            })
        }

ABSTRACT CLASSES AND ABSTARCT METHODS FULL DESCRIPTION GO THROUGH IT

abstract method do not have body.A well defined method can't be declared abstract.

A class which has abstract method must be declared as abstract.

Abstract class can't be instantiated.

If you hate recursion - using a Stack and javax.json to convert a Json String into a List of Maps:

import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Stack;
import javax.json.Json;
import javax.json.stream.JsonParser;

public class TestCreateObjFromJson {
    public static List<Map<String,Object>> extract(InputStream is) {
        List extracted = new ArrayList<>();
        JsonParser parser = Json.createParser(is);

        String nextKey = "";
        Object nextval = "";
        Stack s = new Stack<>();
        while(parser.hasNext()) {
            JsonParser.Event event = parser.next();
            switch(event) {
                case START_ARRAY :  List nextList = new ArrayList<>();
                                    if(!s.empty()) {
                                        // If this is not the root object, add it to tbe parent object
                                        setValue(s,nextKey,nextList);
                                    }
                                    s.push(nextList);
                                    break;
                case START_OBJECT : Map<String,Object> nextMap = new HashMap<>();
                                    if(!s.empty()) {
                                        // If this is not the root object, add it to tbe parent object
                                        setValue(s,nextKey,nextMap);
                                    }
                                    s.push(nextMap);
                                    break;
                case KEY_NAME : nextKey = parser.getString();
                                break;
                case VALUE_STRING : setValue(s,nextKey,parser.getString());
                                    break;
                case VALUE_NUMBER : setValue(s,nextKey,parser.getLong());
                                    break;
                case VALUE_TRUE :   setValue(s,nextKey,true);
                                    break;
                case VALUE_FALSE :  setValue(s,nextKey,false);
                                    break;
                case VALUE_NULL :   setValue(s,nextKey,"");
                                    break;
                case END_OBJECT :   
                case END_ARRAY  :   if(s.size() > 1) {
                                        // If this is not a root object, move up
                                        s.pop(); 
                                    } else {
                                        // If this is a root object, add ir ro rhw final 
                                        extracted.add(s.pop()); 
                                    }
                default         :   break;
            }
        }

        return extracted;
    }

    private static void setValue(Stack s, String nextKey, Object v) {
        if(Map.class.isAssignableFrom(s.peek().getClass()) ) ((Map)s.peek()).put(nextKey, v);
        else ((List)s.peek()).add(v);
    }
}

I believe you could do it like this :

var fd = new FormData();    
fd.append( 'file', input.files[0] );

$.ajax({
  url: 'http://example.com/script.php',
  data: fd,
  processData: false,
  contentType: false,
  type: 'POST',
  success: function(data){
    alert(data);
  }
});

Notes:

• Setting processData to false lets you prevent jQuery from automatically transforming the data into a query string. See the docs for more info.

• Setting the contentType to false is imperative, since otherwise jQuery will set it incorrectly.

As has been mentioned by others, if you don't assign the result of explode() to a variable, you get the message:

E_STRICT: Strict standards: Only variables should be passed by reference

The correct way is:

$words = explode('-', 'hello-world-123');
$id = array_pop($words); // 123
$slug = implode('-', $words); // hello-world

To read in an Unicode string and then send to HTML, I did this:

fileline.decode("utf-8").encode('ascii', 'xmlcharrefreplace')

Useful for python powered http servers.

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

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

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

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

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

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

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

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

will print:

0x00000000DEADBEEF

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

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

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

When you put the username and password in front of the host, this data is not sent that way to the server. It is instead transformed to a request header depending on the authentication schema used. Most of the time this is going to be Basic Auth which I describe below. A similar (but significantly less often used) authentication scheme is Digest Auth which nowadays provides comparable security features.

With Basic Auth, the HTTP request from the question will look something like this:

GET / HTTP/1.1
Host: example.com
Authorization: Basic Zm9vOnBhc3N3b3Jk

The hash like string you see there is created by the browser like this: base64_encode(username + ":" + password).

To outsiders of the HTTPS transfer, this information is hidden (as everything else on the HTTP level). You should take care of logging on the client and all intermediate servers though. The username will normally be shown in server logs, but the password won't. This is not guaranteed though. When you call that URL on the client with e.g. curl, the username and password will be clearly visible on the process list and might turn up in the bash history file.

When you send passwords in a GET request as e.g. http://example.com/login.php?username=me&password=secure the username and password will always turn up in server logs of your webserver, application server, caches, ... unless you specifically configure your servers to not log it. This only applies to servers being able to read the unencrypted http data, like your application server or any middleboxes such as loadbalancers, CDNs, proxies, etc. though.

Basic auth is standardized and implemented by browsers by showing this little username/password popup you might have seen already. When you put the username/password into an HTML form sent via GET or POST, you have to implement all the login/logout logic yourself (which might be an advantage and allows you to more control over the login/logout flow for the added "cost" of having to implement this securely again). But you should never transfer usernames and passwords by GET parameters. If you have to, use POST instead. The prevents the logging of this data by default.

When implementing an authentication mechanism with a user/password entry form and a subsequent cookie-based session as it is commonly used today, you have to make sure that the password is either transported with POST requests or one of the standardized authentication schemes above only.

Concluding I could say, that transfering data that way over HTTPS is likely safe, as long as you take care that the password does not turn up in unexpected places. But that advice applies to every transfer of any password in any way.

Just replace, with replace().

f = float("123,456.908".replace(',','')) print(type(f)

type() will show you that it has converted into a float

Your observation is correct. This behavior is happening due to the reuse of cells. But you dont have to do any thing with the prepareForReuse. Instead do your check in cellForItem and set the properties accordingly. Some thing like..

 - (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"cvCell" forIndexPath:indexPath];


if (cell.selected) {
     cell.backgroundColor = [UIColor blueColor]; // highlight selection 
}
else
{
     cell.backgroundColor = [UIColor redColor]; // Default color
}
return cell;
}

-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath  {

    UICollectionViewCell *datasetCell =[collectionView cellForItemAtIndexPath:indexPath];
    datasetCell.backgroundColor = [UIColor blueColor]; // highlight selection
 }  

 -(void)collectionView:(UICollectionView *)collectionView didDeselectItemAtIndexPath:(NSIndexPath *)indexPath {

UICollectionViewCell *datasetCell =[collectionView cellForItemAtIndexPath:indexPath]; 
datasetCell.backgroundColor = [UIColor redColor]; // Default color
}

People normally use it to indicate dummy values. I think that it primarily was used before the idea of NULL pointers.

CURL is the simplest way to go. Here is a simple call

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "THE URL TO THE SERVICE");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, POST DATA);
$result = curl_exec($ch);


print_r($result);
curl_close($ch);

jars use zip compression so you can use any unzip utility.

Example:

$ unzip myJar.jar -d ./directoryToExtractTo

As an alternative to the previous answers, guava's Splitter API can be used if other operations are to be applied to the resulting lines, like trimming lines or filtering empty lines :

import com.google.common.base.Splitter;

Iterable<String> split = Splitter.onPattern("\r?\n").trimResults().omitEmptyStrings().split(docStr);

Note that the result is an Iterable and not an array.

In my sample code, I was setting my object to nothing, and I couldn't get the "not" part of the if statement to work with the object. I tried if My_Object is not nothing and also if not My_Object is nothing. It may be just a syntax thing I can't figure out but I didn't have time to mess around, so I did a little workaround like this:

if My_Object is Nothing Then
    'do nothing
Else
    'Do something
End if

I think your problem is that the match method is returning an array. The 0th item in the array is the original string, the 1st thru nth items correspond to the 1st through nth matched parenthesised items. Your "alert()" call is showing the entire array.

Just put an empty string in the radix place, because parseInt() take two arguments:

parseInt(string, radix);

string The value to parse. If the string argument is not a string, then it is converted to a string (using the ToString abstract operation). Leading whitespace in the string argument is ignored.

radix An integer between 2 and 36 that represents the radix (the base in mathematical numeral systems) of the above-mentioned string. Specify 10 for the decimal numeral system commonly used by humans. Always specify this parameter to eliminate reader confusion and to guarantee predictable behavior. Different implementations produce different results when a radix is not specified, usually defaulting the value to 10.

imageIndex = parseInt(id.substring(id.length - 1))-1;
imageIndex = parseInt(id.substring(id.length - 1), '')-1;

I also like to build locators from up to bottom like:

//div[contains(@class,'btn-group')][./button[contains(.,'Arcade Reader')]]/button[@name='settings']

It's pretty simple, as we just search btn-group with button[contains(.,'Arcade Reader')] and get it's button[@name='settings']

That's just another option to build xPath locators

What is the profit of searching wrapper element: you can return it by method (example in java) and just build selenium constructions like:

getGroupByName("Arcade Reader").find("button[name='settings']");
getGroupByName("Arcade Reader").find("button[name='delete']");

or even simplify more

getGroupButton("Arcade Reader", "delete").click();

Use git fetch && git checkout RemoteBranchName.

It works very well for me...

You're storing all (sub-) files and folder recursively in a list, but with your current code you store the parent folder before you store the children. And so you try to delete the folder before it is empty. Try this code:

   if(tempFile.isDirectory()) {
        // children first
        fetchCompleteList(filesList, folderList, tempFile.getAbsolutePath());
        // parent folder last
        folderList.add(tempFile.getAbsolutePath());
   }

just create the empty reference on link such as following

 <a href="" onclick="dummy(0);return false;" >

An alternative approach might be to use another table to contain id values. This other table can then be inner joined on your TABLE to constrain returned rows. This will have the major advantage that you won't need dynamic SQL (problematic at the best of times), and you won't have an infinitely long IN clause.

You would truncate this other table, insert your large number of rows, then perhaps create an index to aid the join performance. It would also let you detach the accumulation of these rows from the retrieval of data, perhaps giving you more options to tune performance.

Update: Although you could use a temporary table, I did not mean to imply that you must or even should. A permanent table used for temporary data is a common solution with merits beyond that described here.