Disclaimer

Nested State in React is wrong design

Read this excellent answer.

Reasoning behind this answer:

React's setState is just a built-in convenience, but you soon realise that it has its limits. Using custom properties and intelligent use of forceUpdate gives you much more. eg:

class MyClass extends React.Component {
    myState = someObject
    inputValue = 42
...

MobX, for example, ditches state completely and uses custom observable properties.
Use Observables instead of state in React components.

the answer to your misery - see example here

There is another shorter way to update whatever nested property.

this.setState(state => {
  state.nested.flag = false
  state.another.deep.prop = true
  return state
})

On one line

 this.setState(state => (state.nested.flag = false, state))

_{note: This here is Comma operator ~MDN, see it in action here (Sandbox).}

It is similar to (though this doesn't change state reference)

this.state.nested.flag = false
this.forceUpdate()

_{For the subtle difference in this context between forceUpdate and setState see the linked example and sandbox.}

Of course this is abusing some core principles, as the state should be read-only, but since you are immediately discarding the old state and replacing it with new state, it is completely ok.

Warning

Even though the component containing the state will update and rerender properly (except this gotcha), the props will fail to propagate to children (see Spymaster's comment below). Only use this technique if you know what you are doing.

For example, you may pass a changed flat prop that is updated and passed easily.

render(
  //some complex render with your nested state
  <ChildComponent complexNestedProp={this.state.nested} pleaseRerender={Math.random()}/>
)

Now even though reference for complexNestedProp did not change (shouldComponentUpdate)

this.props.complexNestedProp === nextProps.complexNestedProp

the component will rerender whenever parent component updates, which is the case after calling this.setState or this.forceUpdate in the parent.

Effects of mutating the state sandbox

Using nested state and mutating the state directly is dangerous because different objects might hold (intentionally or not) different (older) references to the state and might not necessarily know when to update (for example when using PureComponent or if shouldComponentUpdate is implemented to return false) OR are intended to display old data like in the example below.

Imagine a timeline that is supposed to render historic data, mutating the data under the hand will result in unexpected behaviour as it will also change previous items.

Anyway here you can see that Nested PureChildClass is not rerendered due to props failing to propagate.

It's the API key as listed under 'API Access', the 'Simple API Access' box.

I think all explanations above are a bit too technical for the people who are new to Object Oriented Programming (OOP). Years ago, it took me a while to wrap my head around this (as Jr Java Developer) and I really did no understand why we use a parent class or an interface to hide the actual class we are actually calling under the covers.

1. The immediate reason why is to hide complexity, so that the caller does not need to change often (be hacked and jacked in laymen's terms). This makes a lot of sense, especially if you goals is to avoid creating bugs. And the more you modify code, the more likely it is that you will have some of them creep up on you. On the other hand, if you just extend code, it is way less likely that you will have bugs because you concentrate on one thing at a time and your old code does not change or changes just a bit. Imagine that you have simple application that allows the employees in the medical profession to create profiles. For simplicity, let's assume that we have only GeneralPractitioners, Surgeons, and Nurses (in reality there are many more specific professions, of course). For each profession, you want to store some general information and some specific to that professional alone. For example, a Surgeon may have general fields like firstName, lastName, yearsOfExperience as general fields but also specific fields, e.g. specializations stored in an list instance variable, like List with contents simiar to "Bone Surgery", "Eye Surgery", etc. A Nurse would not have any of that but may have list procedures they are familiar with, GeneralPractioners would have their own specifics. As a result, how you save a profile of a specifics. However, you don't want your ProfileManager class to know about these differences, as they will inevitably change and increase over time as your application expands its functionality to cover more medical professions, e.g. Physio Therapist, Cardiologist, Oncologist, etc. All you want your ProfileManger to do is just say save(), no matter whose profile it is saving. Thus, it is common practice to hide this behind and Interface, and Abstract Class, or a Parent Class (if you plan to allow creating a general medical employee). In this case, let's choose a Parent class and call it MedicalEmployee. Under the covers, it can reference any of the above specific classes that extend it. When the ProfileManager calls myMedicalEmployee.save() the save() method will be polymorphically (many-structurally) be resolved to the correct class type that was used to create the profile originally, for example Nurse and call the save() method in that class.

2. In many cases, you don't really know what implementation you will need at runtime. From the example above, you have no idea if a GeneralPractitioner, a Surgeon, or a Nurse would create a profile. Yet, you know that you need to save that profile once completed, no matter what. MedicalEmployee.profile() does exactly that. It is replicated (overridden) by each specific type of MedicalEmployee - GeneralPractitioner, Surgeon, Nurse,

3. The result of (1) and (2) above is that you now can add new medical professions, implement save() in each new class, thereby overriding the save() method in MedicalEmployee, and you don't have to modify ProfileManager at all.

You must specify the file to be downloaded (attachment) by the client in the http header:

Response.ContentType = "application/vnd.ms-excel"
Response.AppendHeader "content-disposition", "attachment: filename=excelTest.xls"

http://classicasp.aspfaq.com/general/how-do-i-prompt-a-save-as-dialog-for-an-accepted-mime-type.html

From the documentation:

In Vue.js, the parent-child component relationship can be summarized as props down, events up. The parent passes data down to the child via props, and the child sends messages to the parent via events. Let’s see how they work next.

How to pass props

Following is the code to pass props to a child element:

<div>
  <input v-model="parentMsg">
  <br>
  <child v-bind:my-message="parentMsg"></child>
</div>

How to emit event

HTML:

<div id="counter-event-example">
  <p>{{ total }}</p>
  <button-counter v-on:increment="incrementTotal"></button-counter>
  <button-counter v-on:increment="incrementTotal"></button-counter>
</div>

JS:

Vue.component('button-counter', {
  template: '<button v-on:click="increment">{{ counter }}</button>',
  data: function () {
    return {
      counter: 0
    }
  },
  methods: {
    increment: function () {
      this.counter += 1
      this.$emit('increment')
    }
  },
})
new Vue({
  el: '#counter-event-example',
  data: {
    total: 0
  },
  methods: {
    incrementTotal: function () {
      this.total += 1
    }
  }
})

Also, try to use 'pgrep' command instead of 'ps -A | grep 'process_name'

There is obviously another process listening on the port. You might find out that process by using the following command:

$ lsof -i :8000

or change your tornado app's port. tornado's error info not Explicitly on this.

You also need to change the DataSource of the connection string. KELVIN-PC is the name of your local machine and the sql server is running on the default instance.

If you are sure the the server is running as the default instance, you can always use . in the DataSource, eg.

connectionString="Data Source=.;Initial Catalog=LMS;User ID=sa;Password=temperament"

otherwise, you need to specify the name of the instance of the server,

connectionString="Data Source=.\INSTANCENAME;Initial Catalog=LMS;User ID=sa;Password=temperament"

EDIT:

The gcc guys really improved the diagnosis experience in gcc (ah competition). They created a wiki page to showcase it here. gcc 4.8 now has quite good diagnostics as well (gcc 4.9x added color support). Clang is still in the lead, but the gap is closing.

Original:

For students, I would unconditionally recommend Clang.

The performance in terms of generated code between gcc and Clang is now unclear (though I think that gcc 4.7 still has the lead, I haven't seen conclusive benchmarks yet), but for students to learn it does not really matter anyway.

On the other hand, Clang's extremely clear diagnostics are definitely easier for beginners to interpret.

Consider this simple snippet:

#include <string>
#include <iostream>

struct Student {
std::string surname;
std::string givenname;
}

std::ostream& operator<<(std::ostream& out, Student const& s) {
  return out << "{" << s.surname << ", " << s.givenname << "}";
}

int main() {
  Student me = { "Doe", "John" };
  std::cout << me << "\n";
}

You'll notice right away that the semi-colon is missing after the definition of the Student class, right :) ?

Well, gcc notices it too, after a fashion:

prog.cpp:9: error: expected initializer before ‘&’ token
prog.cpp: In function ‘int main()’:
prog.cpp:15: error: no match for ‘operator<<’ in ‘std::cout << me’
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:112: note: candidates are: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>& (*)(std::basic_ostream<_CharT, _Traits>&)) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:121: note:                 std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ios<_CharT, _Traits>& (*)(std::basic_ios<_CharT, _Traits>&)) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:131: note:                 std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(std::ios_base& (*)(std::ios_base&)) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:169: note:                 std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(long int) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:173: note:                 std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(long unsigned int) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:177: note:                 std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(bool) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/bits/ostream.tcc:97: note:                 std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(short int) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:184: note:                 std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(short unsigned int) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/bits/ostream.tcc:111: note:                 std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(int) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:195: note:                 std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(unsigned int) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:204: note:                 std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(long long int) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:208: note:                 std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(long long unsigned int) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:213: note:                 std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(double) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:217: note:                 std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(float) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:225: note:                 std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(long double) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:229: note:                 std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(const void*) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/bits/ostream.tcc:125: note:                 std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_streambuf<_CharT, _Traits>*) [with _CharT = char, _Traits = std::char_traits<char>]

And Clang is not exactly starring here either, but still:

/tmp/webcompile/_25327_1.cc:9:6: error: redefinition of 'ostream' as different kind of symbol
std::ostream& operator<<(std::ostream& out, Student const& s) {
     ^
In file included from /tmp/webcompile/_25327_1.cc:1:
In file included from /usr/include/c++/4.3/string:49:
In file included from /usr/include/c++/4.3/bits/localefwd.h:47:
/usr/include/c++/4.3/iosfwd:134:33: note: previous definition is here
  typedef basic_ostream<char>           ostream;        ///< @isiosfwd
                                        ^
/tmp/webcompile/_25327_1.cc:9:13: error: expected ';' after top level declarator
std::ostream& operator<<(std::ostream& out, Student const& s) {
            ^
            ;
2 errors generated.

I purposefully choose an example which triggers an unclear error message (coming from an ambiguity in the grammar) rather than the typical "Oh my god Clang read my mind" examples. Still, we notice that Clang avoids the flood of errors. No need to scare students away.

First of all, from __future__ import print_function needs to be the first line of code in your script (aside from some exceptions mentioned below). Second of all, as other answers have said, you have to use print as a function now. That's the whole point of from __future__ import print_function; to bring the print function from Python 3 into Python 2.6+.

from __future__ import print_function

import sys, os, time

for x in range(0,10):
    print(x, sep=' ', end='')  # No need for sep here, but okay :)
    time.sleep(1)

__future__ statements need to be near the top of the file because they change fundamental things about the language, and so the compiler needs to know about them from the beginning. From the documentation:

A future statement is recognized and treated specially at compile time: Changes to the semantics of core constructs are often implemented by generating different code. It may even be the case that a new feature introduces new incompatible syntax (such as a new reserved word), in which case the compiler may need to parse the module differently. Such decisions cannot be pushed off until runtime.

The documentation also mentions that the only things that can precede a __future__ statement are the module docstring, comments, blank lines, and other future statements.

How does the virtual keyword work?

Assume that Man is a base class, Indian is derived from man.

Class Man
{
 public: 
   virtual void do_work()
   {}
}

Class Indian : public Man
{
 public: 
   void do_work()
   {}
}

Declaring do_work() as virtual simply means: which do_work() to call will be determined ONLY at run-time.

Suppose I do,

Man *man;
man = new Indian();
man->do_work(); // Indian's do work is only called.

If virtual is not used, the same is statically determined or statically bound by the compiler, depending on what object is calling. So if an object of Man calls do_work(), Man's do_work() is called EVEN THOUGH IT POINTS TO AN INDIAN OBJECT

I believe that the top voted answer is misleading - Any method whether or not virtual can have an overridden implementation in the derived class. With specific reference to C++ the correct difference is run-time (when virtual is used) binding and compile-time (when virtual is not used but a method is overridden and a base pointer is pointed at a derived object) binding of associated functions.

There seems to be another misleading comment that says,

"Justin, 'pure virtual' is just a term (not a keyword, see my answer below) used to mean "this function cannot be implemented by the base class."

THIS IS WRONG! Purely virtual functions can also have a body AND CAN BE IMPLEMENTED! The truth is that an abstract class' pure virtual function can be called statically! Two very good authors are Bjarne Stroustrup and Stan Lippman.... because they wrote the language.

Suppose the pattern you want is abc+d. You want to match the second occurrence of this pattern in a string.

You would construct the following regex:

abc+d.*?(abc+d)

This would match strings of the form: <your-pattern>...<your-pattern>. Since we're using the reluctant qualifier *? we're safe that there cannot be another match of between the two. Using matcher groups which pretty much all regex implementations provide you would then retrieve the string in the bracketed group which is what you want.

Be aware that it only updates the first company it found with company id 1. For multiple

 (from c in listOfCompany where c.id == 1 select c).First().Name = "Whatever Name";

For Multiple updates

 from c in listOfCompany where c.id == 1 select c => {c.Name = "Whatever Name";  return c;}

You get this error when you try to run a 32-bit build on your 64-bit Linux.

Also contrast what file had to say on the binary you tried (ie: 32-bit) with what you get for your /bin/gzip:

$ file /bin/gzip
/bin/gzip: ELF 64-bit LSB executable, x64-64, version 1 (SYSV), \
dynamically linked (uses shared libs), for GNU/Linux 2.6.15, stripped

which is what I get on Ubuntu 9.10 for amd64 aka x86_64.

Edit: Your expanded post shows that as the readelf output also reflects a 32-bit build.

If you are using SQL Server 2005, you can use the UNPIVOT feature. Here is a complete example:

create table dates 
(
  number int,
  date1 datetime,
  date2 datetime,
  date3 datetime 
)

insert into dates values (1, '1/1/2008', '2/4/2008', '3/1/2008')
insert into dates values (1, '1/2/2008', '2/3/2008', '3/3/2008')
insert into dates values (1, '1/3/2008', '2/2/2008', '3/2/2008')
insert into dates values (1, '1/4/2008', '2/1/2008', '3/4/2008')

select max(dateMaxes)
from (
  select 
    (select max(date1) from dates) date1max, 
    (select max(date2) from dates) date2max,
    (select max(date3) from dates) date3max
) myTable
unpivot (dateMaxes For fieldName In (date1max, date2max, date3max)) as tblPivot

drop table dates

In JavaScript you can use template literals:

let value = 100;
console.log(`The size is ${ value }`);

jQuery('#testID2').find('.test2').replaceWith('.test3');

Semantically, you are selecting the element with the ID testID2, then you are looking for any descendent elements with the class test2 (does not exist) and then you are replacing that element with another element (elements anywhere in the page with the class test3) that also do not exist.

You need to do this:

jQuery('#testID2').addClass('test3').removeClass('test2');

This selects the element with the ID testID2, then adds the class test3 to it. Last, it removes the class test2 from that element.

Do you have multiple Radio Buttons on the page..

Because what I see is that you are assigning the events to all the radio button's on the page when you click on a radio button

Change SMTP=localhost to SMTP=smtp.gmail.com

Here's a demo of the above:https://jsfiddle.net/sajadweb/mjnyLm0q/11

new Vue({_x000D_
  el: '#app',_x000D_
  data: {_x000D_
    users: [{ name: 'sajadweb',email:'[email protected]' }] _x000D_
  },_x000D_
  methods: {_x000D_
    addUser: function () {_x000D_
      this.users.push({ name: '',email:'' });_x000D_
    },_x000D_
    deleteUser: function (index) {_x000D_
      console.log(index);_x000D_
      console.log(this.finds);_x000D_
      this.users.splice(index, 1);_x000D_
      if(index===0)_x000D_
      this.addUser()_x000D_
    }_x000D_
  }_x000D_
});

<script src="https://unpkg.com/vue/dist/vue.js"></script>_x000D_
<div id="app">_x000D_
  <h1>Add user</h1>_x000D_
  <div v-for="(user, index) in users">_x000D_
    <input v-model="user.name">_x000D_
    <input v-model="user.email">_x000D_
    <button @click="deleteUser(index)">_x000D_
      delete_x000D_
    </button>_x000D_
  </div>_x000D_
  _x000D_
  <button @click="addUser">_x000D_
    New User_x000D_
  </button>_x000D_
  _x000D_
  <pre>{{ $data }}</pre>_x000D_
</div>

Fontinator is an Android-Library make it easy, to use custom Fonts. https://github.com/svendvd/Fontinator

The pointsize command scales the size of points, but does not affect the size of dots.

In other words, plot ... with points ps 2 will generate points of twice the normal size, but for plot ... with dots ps 2 the "ps 2" part is ignored.

You could use circular points (pt 7), which look just like dots.

@Hooman: actually with the latest versions of Xampp you don't need to know where the configuration or log files are; in the Control panel you have log and config buttons for each tool (php, mysql, tomcat...) and clicking them offers to open all the relevant file (you can even change the default editing application with the general Config button at the top right). Well done for whoever designed it!

What has worked for me (may be a newer feature of Maven) is merely doing wildcards in the exclusion element.

I have a multi-module project that contains an "app" module that is referenced in two WAR-packaged modules. One of those WAR-packaged modules really only needs the domain classes (and I haven't separated them out of the app module yet). I found this to work:

<dependency>
    <groupId>${project.groupId}</groupId>
    <artifactId>app</artifactId>
    <version>${project.version}</version>
    <exclusions>
        <exclusion>
            <groupId>*</groupId>
            <artifactId>*</artifactId>
        </exclusion>
    </exclusions>
</dependency>

The wildcard on both groupId and artifactId exclude all dependencies that normally would propagate through to the module using this dependency.

I came up with a totally different solution. I needed to analyse video still frames to find the sharpest one in every (X) frames. This way, I would detect motion blur and/or out of focus images.

I ended up using Canny Edge detection and I got VERY VERY good results with almost every kind of video (with nikie's method, I had problems with digitalized VHS videos and heavy interlaced videos).

I optimized the performance by setting a region of interest (ROI) on the original image.

Using EmguCV :

//Convert image using Canny
using (Image<Gray, byte> imgCanny = imgOrig.Canny(225, 175))
{
    //Count the number of pixel representing an edge
    int nCountCanny = imgCanny.CountNonzero()[0];

    //Compute a sharpness grade:
    //< 1.5 = blurred, in movement
    //de 1.5 à 6 = acceptable
    //> 6 =stable, sharp
    double dSharpness = (nCountCanny * 1000.0 / (imgCanny.Cols * imgCanny.Rows));
}

Not sure if you have resolved it (and if I understand correctly), but here's my idea:

If parent receives myProp, and you want it to pass to child and watch it in child, then parent has to have copy of myProp (not reference).

Try this:

new Vue({
  el: '#app',
  data: {
    text: 'Hello'
  },
  components: {
    'parent': {
      props: ['myProp'],
      computed: {
        myInnerProp() { return myProp.clone(); } //eg. myProp.slice() for array
      }
    },
    'child': {
      props: ['myProp'],
      watch: {
        myProp(val, oldval) { now val will differ from oldval }
      }
    }
  }
}

and in html:

<child :my-prop="myInnerProp"></child>

actually you have to be very careful when working on complex collections in such situations (passing down few times)

If you'd rather not use jQuery, this can be achieved with CSS3

@-webkit-keyframes blink {  
  from { opacity: 1.0; }
  to { opacity: 0.0; }
}

blink {
  -webkit-animation-name: blink;  
  -webkit-animation-iteration-count: infinite;  
  -webkit-animation-timing-function: cubic-bezier(1.0,0,0,1.0);
  -webkit-animation-duration: 1s; 
}

Seems to work in Chrome, though I thought I heard a slight sobbing noise.

I wrote small js-utility to crop and resize image on front-end. Here is link on GitHub project. Also you can get blob from final image to send it.

import imageSqResizer from './image-square-resizer.js'

let resizer = new imageSqResizer(
    'image-input',
    300,
    (dataUrl) => 
        document.getElementById('image-output').src = dataUrl;
);
//Get blob
let formData = new FormData();
formData.append('files[0]', resizer.blob);

//get dataUrl
document.getElementById('image-output').src = resizer.dataUrl;

import datetime

begin = datetime.date(2008, 8, 15)
end = datetime.date(2008, 9, 15)

next_day = begin
while True:
    if next_day > end:
        break
    print next_day
    next_day += datetime.timedelta(days=1)

A slightly modified version of ScottF answer, which does not require absolute file paths:

if WScript.Arguments.Count < 2 Then
    WScript.Echo "Please specify the source and the destination files. Usage: ExcelToCsv <xls/xlsx source file> <csv destination file>"
    Wscript.Quit
End If

csv_format = 6

Set objFSO = CreateObject("Scripting.FileSystemObject")

src_file = objFSO.GetAbsolutePathName(Wscript.Arguments.Item(0))
dest_file = objFSO.GetAbsolutePathName(WScript.Arguments.Item(1))

Dim oExcel
Set oExcel = CreateObject("Excel.Application")

Dim oBook
Set oBook = oExcel.Workbooks.Open(src_file)

oBook.SaveAs dest_file, csv_format

oBook.Close False
oExcel.Quit

I have renamed the script ExcelToCsv, since this script is not limited to xls at all. xlsx Works just fine, as we could expect.

Tested with Office 2010.

You could do something like this, based on the ascii values of the characters:

char[26] alphabet;

for(int i = 0; i <26; i++)
{
     alphabet[i] = (char)(i+65); //65 is the offset for capital A in the ascaii table
}

(See the table here.) You are just casting from the int value of the character to the character value - but, that only works for ascii characters not different languages etc.

EDIT: As suggested by Mehrdad in the comment to a similar solution, it's better to do this:

alphabet[i] = (char)(i+(int)('A'));

This casts the A character to it's int value and then increments based on this, so it's not hardcoded.

In the client side handle the click event of the button, use the ClientID property to get he id of the button:

$(document).ready(function() {
$("#<%=myButton.ClientID %>,#<%=muSecondButton.ClientID%>").click(

    function() {
     $.get("/myPage.aspx",{id:$(this).attr('id')},function(data) {
       // do something with the data
     return false;
     }
    });
 });

In your page on the server:

protected void Page_Load(object sender,EventArgs e) {
 // check if it is an ajax request
 if (Request.Headers["X-Requested-With"] == "XMLHttpRequest") {
  if (Request.QueryString["id"]==myButton.ClientID) {
    // call the click event handler of the myButton here
    Response.End();
  }
  if (Request.QueryString["id"]==mySecondButton.ClientID) {
    // call the click event handler of the mySecondButton here
    Response.End();
  }
 }
}

Just like unix.

dir | tee a.txt

Does work On windows XP, it requires mksnt installed.

It displays on the prompt as well as appends to the file.

addEventListener is the proper DOM method to use for attaching event handlers.

Internet Explorer (up to version 8) used an alternate attachEvent method.

Internet Explorer 9 supports the proper addEventListener method.

The following should be an attempt to write a cross-browser addEvent function.

function addEvent(evnt, elem, func) {
   if (elem.addEventListener)  // W3C DOM
      elem.addEventListener(evnt,func,false);
   else if (elem.attachEvent) { // IE DOM
      elem.attachEvent("on"+evnt, func);
   }
   else { // No much to do
      elem["on"+evnt] = func;
   }
}

If you want to show the profile picture for the currently logged in user, you do not even need to know the {user_id}. Simply using https://plus.google.com/s2/photos/profile/me will be enough.

Swift 2 and below

let date = NSDate()
var dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "MM-dd-yyyy"
var dateString = dateFormatter.stringFromDate(date)
println(dateString)

And in Swift 3 and higher this would now be written as:

let date = Date()
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "MM-dd-yyyy"
var dateString = dateFormatter.string(from: date)

The solution suggested in this answer has been deprecated, and might no longer work.

Taking a look at the source code of OpenPyXL (IterableWorksheet) I've figured out how to get the column and row count from an iterator worksheet:

wb = load_workbook(path, use_iterators=True)
sheet = wb.worksheets[0]

row_count = sheet.get_highest_row() - 1
column_count = letter_to_index(sheet.get_highest_column()) + 1

IterableWorksheet.get_highest_column returns a string with the column letter that you can see in Excel, e.g. "A", "B", "C" etc. Therefore I've also written a function to translate the column letter to a zero based index:

def letter_to_index(letter):
    """Converts a column letter, e.g. "A", "B", "AA", "BC" etc. to a zero based
    column index.

    A becomes 0, B becomes 1, Z becomes 25, AA becomes 26 etc.

    Args:
        letter (str): The column index letter.
    Returns:
        The column index as an integer.
    """
    letter = letter.upper()
    result = 0

    for index, char in enumerate(reversed(letter)):
        # Get the ASCII number of the letter and subtract 64 so that A
        # corresponds to 1.
        num = ord(char) - 64

        # Multiply the number with 26 to the power of `index` to get the correct
        # value of the letter based on it's index in the string.
        final_num = (26 ** index) * num

        result += final_num

    # Subtract 1 from the result to make it zero-based before returning.
    return result - 1

I still haven't figured out how to get the column sizes though, so I've decided to use a fixed-width font and automatically scaled columns in my application.

Is it legal? Yes, changing your location on Android is legal. Likewise, you can change VPN settings in Microsoft Edge on your PC, and all this is within the law. VPN allows you to change your IP address, safeguarding your privacy and protecting your actual location from being exposed. However, VPN laws may vary from country to country. There are restrictions in some regions.

Brief summary: Yes, you can change your region on Android and a VPN is a necessary assistant for this. It's simple, safe and legal. Today, VPN is the best way to change the region and unblock sites with regional restrictions.

The other answers here are correct: Yes, your Ruby app (not your Ruby gem) should include Gemfile.lock in the repo. To expand on why it should do this, read on:

I was under the mistaken notion that each env (development, test, staging, prod...) each did a bundle install to build their own Gemfile.lock. My assumption was based on the fact that Gemfile.lock does not contain any grouping data, such as :test, :prod, etc. This assumption was wrong, as I found out in a painful local problem.

Upon closer investigation, I was confused why my Jenkins build showed fetching a particular gem (ffaker, FWIW) successfully, but when the app loaded and required ffaker, it said file not found. WTF?

A little more investigation and experimenting showed what the two files do:

First it uses Gemfile.lock to go fetch all the gems, even those that won't be used in this particular env. Then it uses Gemfile to choose which of those fetched gems to actually use in this env.

So, even though it fetched the gem in the first step based on Gemfile.lock, it did NOT include in my :test environment, based on the groups in Gemfile.

The fix (in my case) was to move gem 'ffaker' from the :development group to the main group, so all env's could use it. (Or, add it only to :development, :test, as appropriate)

a.button a:hover means "a link that's being hovered over that is a child of a link with the class button".

Go instead for a.button:hover.

if ($('a').on('Clicked').text().search('1') == -1)
{
    //Page == 1
}
else
{
    //Page != 1
}

Uri.IsFile doesn't work with http urls. It only works for "file://". From MSDN : "The IsFile property is true when the Scheme property equals UriSchemeFile." So you can't depend on that.

Uri uri = new Uri(hreflink);
string filename = System.IO.Path.GetFileName(uri.LocalPath);

is it possible to export without looping through all records

For a range in Excel with a large number of rows you may see some performance improvement if you create an Access.Application object in Excel and then use it to import the Excel data into Access. The code below is in a VBA module in the same Excel document that contains the following test data

Option Explicit

Sub AccImport()
    Dim acc As New Access.Application
    acc.OpenCurrentDatabase "C:\Users\Public\Database1.accdb"
    acc.DoCmd.TransferSpreadsheet _
            TransferType:=acImport, _
            SpreadSheetType:=acSpreadsheetTypeExcel12Xml, _
            TableName:="tblExcelImport", _
            Filename:=Application.ActiveWorkbook.FullName, _
            HasFieldNames:=True, _
            Range:="Folio_Data_original$A1:B10"
    acc.CloseCurrentDatabase
    acc.Quit
    Set acc = Nothing
End Sub

Well, I faced the same issue. For new users who may land at this page. Just follow their official documentation.

Install flask-cors

pip install -U flask-cors

then after app initialization, initialize flask-cors with default arguments:

from flask import Flask
from flask_cors import CORS

app = Flask(__name__)
CORS(app)

@app.route("/")
def helloWorld():
   return "Hello, cross-origin-world!"

1. Iterate over the ResultSet
2. Create a new Object for each row, to store the fields you need
3. Add this new object to ArrayList or Hashmap or whatever you fancy
4. Close the ResultSet, Statement and the DB connection

Done

EDIT: now that you have posted code, I have made a few changes to it.

public List resultSetToArrayList(ResultSet rs) throws SQLException{
  ResultSetMetaData md = rs.getMetaData();
  int columns = md.getColumnCount();
  ArrayList list = new ArrayList(50);
  while (rs.next()){
     HashMap row = new HashMap(columns);
     for(int i=1; i<=columns; ++i){           
      row.put(md.getColumnName(i),rs.getObject(i));
     }
      list.add(row);
  }

 return list;
}

It is probably too late, but for the sake of others (like me) who faced the same problem. It is all about the little '\' at the end of the path variable. When you insert the path to MongoDB's bin directory at the end of the PATH windows variable, do not forget to put the '\' (Backslash) at the end, which tells windows it is a directory and not an executable named bin... e.g. I:\Program Files\MongoDB\Server\3.0\bin\

From what I've found online, this is a bug introduced in JDK 1.7.0_45. It appears to also be present in JDK 1.7.0_60. A bug report on Oracle's website states that, while there was a fix, it was removed before the JDK was released. I do not know why the fix was removed, but it confirms what we've already suspected -- the JDK is still broken.

The bug report claims that the error is benign and should not cause any run-time problems, though one of the comments disagrees with that. In my own experience, I have been able to work without any problems using JDK 1.7.0_60 despite seeing the message.

If this issue is causing serious problems, here are a few things I would suggest:

• Revert back to JDK 1.7.0_25 until a fix is added to the JDK.

• Keep an eye on the bug report so that you are aware of any work being done on this issue. Maybe even add your own comment so Oracle is aware of the severity of the issue.

• Try the JDK early releases as they come out. One of them might fix your problem.

Instructions for installing the JDK on Mac OS X are available at JDK 7 Installation for Mac OS X. It also contains instructions for removing the JDK.

I like indent as mentioned above, but most often I want to format only a small section of the file that I'm working on. Since indent can take code from stdin, its really simple:

1. Select the block of code you want to format with V or the like.
2. Format by typing :!indent.

astyle takes stdin too, so you can use the same trick there.

From the fine manual.

You must own the table to use ALTER TABLE.

Or be a database superuser.

ERROR: must be owner of relation contact

PostgreSQL error messages are usually spot on. This one is spot on.

You can just wrap the expression in a call to list:

>>> list(x for x in string.letters if x in (y for y in "BigMan on campus"))
['a', 'c', 'g', 'i', 'm', 'n', 'o', 'p', 's', 'u', 'B', 'M']

If you want to extract just a simple piece of information, you can get that using git show with the --format=<string> option...and ask it not to give you the diff with --no-patch. This means you can get a printf-style output of whatever you want, which might often be a single field.

For instance, to get just the shortened hash (%h) you could say:

$ git show --format="%h" --no-patch
4b703eb

If you're looking to save that into an environment variable in bash (a likely thing for people to want to do) you can use the $() syntax:

$ GIT_COMMIT="$(git show --format="%h" --no-patch)"

$ echo $GIT_COMMIT
4b703eb

The full list of what you can do is in git show --help. But here's an abbreviated list of properties that might be useful:

• %H commit hash
• %h abbreviated commit hash
• %T tree hash
• %t abbreviated tree hash
• %P parent hashes
• %p abbreviated parent hashes
• %an author name
• %ae author email
• %at author date, UNIX timestamp
• %aI author date, strict ISO 8601 format
• %cn committer name
• %ce committer email
• %ct committer date, UNIX timestamp
• %cI committer date, strict ISO 8601 format
• %s subject
• %f sanitized subject line, suitable for a filename
• %gD reflog selector, e.g., refs/stash@{1}
• %gd shortened reflog selector, e.g., stash@{1}

Printing randomly country name from JSON file.
Model:

public class Country
    {
        public string Name { get; set; }
        public string Code { get; set; }
    }

Implementaton:

string filePath = Path.GetFullPath(Path.Combine(Environment.CurrentDirectory, @"..\..\..\")) + @"Data\Country.json";
            string _countryJson = File.ReadAllText(filePath);
            var _country = JsonConvert.DeserializeObject<List<Country>>(_countryJson);


            int index = random.Next(_country.Count);
            Console.WriteLine(_country[index].Name);

Also, correct me if I'm wrong, but I believe that submit will wait for a new page to load, whereas click will immediately continue executing code

SELECT NAME FROM v$database; shows the database name in oracle

To resolve, Update Spring Frame Work to 3.2.0 or above!

What means about isKindOfClass in Apple Documentation

Be careful when using this method on objects represented by a class cluster. Because of the nature of class clusters, the object you get back may not always be the type you expected. If you call a method that returns a class cluster, the exact type returned by the method is the best indicator of what you can do with that object. For example, if a method returns a pointer to an NSArray object, you should not use this method to see if the array is mutable, as shown in the following code:

// DO NOT DO THIS!
if ([myArray isKindOfClass:[NSMutableArray class]])
{
    // Modify the object
}

If you use such constructs in your code, you might think it is alright to modify an object that in reality should not be modified. Doing so might then create problems for other code that expected the object to remain unchanged.

Doing row=1 won't change anything, because you'll just overwrite that with the results of the loop.

You want to do next(reader) to skip one row.

When you use the parameter "--save" your dependency will go inside the #1 below in package.json. When you use the parameter "--save-dev" your dependency will go inside the #2 below in package.json.

#1. "dependencies": these packages are required by your application in production.

#2. "devDependencies": these packages are only needed for development and testing

Problem is synchronization. Separate out regions of conflict.

Name the file as : (server-name)_(thread/process-name)_(millisecond/timestamp).(extension)
example : aws1_t1_1447402821007.png

try:
    a # does a exist in the current namespace
except NameError:
    a = 10 # nope

The proper way to initialize a multidimensional array in C or C++ is

int arr[2][5] = {{1,8,12,20,25}, {5,9,13,24,26}};

You can use this same trick to initialize even higher-dimensional arrays if you want.

Also, be careful in your initial code - you were trying to use 1-indexed offsets into the array to initialize it. This didn't compile, but if it did it would cause problems because C arrays are 0-indexed!

Honestly, much as I love sed for appropriate tasks, this is definitely a task for perl -- it's truly more powerful for this kind of one-liners, especially to "write it back to where it comes from" (perl's -i switch does it for you, and optionally also lets you keep the old version around e.g. with a .bak appended, just use -i.bak instead).

perl -i.bak -pe 's/\.jpg|\.png|\.gif/.jpg/

rather than intricate work in sed (if even possible there) or awk...

In Html

<div [style.background]="background"></div>

In Typescript

this.background= 
this.sanitization.bypassSecurityTrustStyle(`url(${this.section.backgroundSrc}) no-repeat`);

A working solution.

What is the recommended way to dynamically set background image in Angular 4

Thanks @dotnetom, @greg-herbowicz

If it returns "this.state is undefined" - bind timer function:

constructor(props){
    super(props);
    this.state = {currentCount: 10}
    this.timer = this.timer.bind(this)
}

Best practices :

Contrary to what you may think, the favicon can be of any size and of any image type. Follow this link for details.

Not putting a link to your favicon can slow down the page load.

In a django project, suppose the path to your favicon is :

myapp/static/icons/favicon.png

in your django templates (preferably in the base template), add this line to head of the page :

<link rel="shortcut icon" href="{%  static 'icons/favicon.png' %}">

Note :

We suppose, the static settings are well configured in settings.py.

Mark,

I believe you want to use android:scaleType="fitXY".

I know this is kinda dead but I just wrote this for my own use. It's more or less the same as adding to a hashset and then pulling all the elements out of it. It should run in O(nlogn) worst case.

    public static int[] removeDuplicates(int[] numbers) {
    Entry[] entries = new Entry[numbers.length];
    int size = 0;
    for (int i = 0 ; i < numbers.length ; i++) {
        int nextVal = numbers[i];
        int index = nextVal % entries.length;
        Entry e = entries[index];
        if (e == null) {
            entries[index] = new Entry(nextVal);
            size++;
        } else {
            if(e.insert(nextVal)) {
                size++;
            }
        }
    }
    int[] result = new int[size];
    int index = 0;
    for (int i = 0 ; i < entries.length ; i++) {
        Entry current = entries[i];
        while (current != null) {
            result[i++] = current.value;
            current = current.next;
        }
    }
    return result;
}

public static class Entry {
    int value;
    Entry next;

    Entry(int value) {
        this.value = value;
    }

    public boolean insert(int newVal) {
        Entry current = this;
        Entry prev = null;
        while (current != null) {
            if (current.value == newVal) {
                return false;
            } else if(current.next != null) {
                prev = current;
                current = next;
            }
        }
        prev.next = new Entry(value);
        return true;
    }
}

you should pass reference on item in grep function:

function findPurpose(purposeName){
    return $.grep(purposeObjects, function(item){
      return item.purpose == purposeName;
    });
};

Example

Here's a flow chart that illustrates a for loop:

The equivalent C code would be

for(i = 2; i <= 6; i = i + 2) {
    printf("%d\t", i + 1);
}

I found this and several other examples on one of Tenouk's C Laboratory practice worksheets.

It seems that in VBA macro code for an ActiveX checkbox control you use

If (ActiveSheet.OLEObjects("CheckBox1").Object.Value = True)

and for a Form checkbox control you use

If (ActiveSheet.Shapes("CheckBox1").OLEFormat.Object.Value = 1)

This may not be the exact definition but I'll give you an example: If you were to create a random number taking it from the system time, here using the unsigned variable is beneficial as there is large scope for random numbers as signed numbers give both positive and negative numbers. As the system time can't be negative we use unsigned variable(Only positive numbers) and we have more wide range of random numbers.

Download JDBC Driver

Download link (Select platform independent): https://dev.mysql.com/downloads/connector/j/

Move JDBC Driver to C Drive

Unzip the files and move to C:\ drive. Your driver path should be like C:\mysql-connector-java-8.0.19\mysql-connector-java-8.0.19

Run Your Java

java -cp "C:\mysql-connector-java-8.0.19\mysql-connector-java-8.0.19\mysql-connector-java-8.0.19.jar" testMySQL.java

testMySQL.java

import java.sql.*;
import java.io.*;

public class testMySQL {
    public static void main(String[] args) {
    // TODO Auto-generated method stub
        try
        {  
            Class.forName("com.mysql.cj.jdbc.Driver");  
            Connection con=DriverManager.getConnection(  
                "jdbc:mysql://localhost:3306/db?useSSL=false&useUnicode=true&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC","root","");  
            Statement stmt=con.createStatement();  
            ResultSet rs=stmt.executeQuery("show databases;");  
            System.out.println("Connected");  
        }
        catch(Exception e)
        {
            System.out.println(e);
        }

    }  

}

From the performance point of view your solution is not optimal. Every time you add another log entry with +=, the whole string is copied to another place in memory. I would recommend using StringBuilder instead:

StringBuilder sb = new StringBuilder();
...
sb.Append("log something");

...
// flush every 20 seconds as you do it
File.AppendAllText(filePath+"log.txt", sb.ToString());
sb.Clear();

By the way your timer event is probably executed on another thread. So you may want to use a mutex when accessing your sb object.

Another thing to consider is what happens to the log entries that were added within the last 20 seconds of the execution. You probably want to flush your string to the file right before the app exits.

For Each is much faster than for I=1 to X, for some reason. Just try to go through the same dictionary,

once with for each Dkey in dDict,

and once with for Dkey = lbound(dDict.keys) to ubound(dDict.keys)

=>You will notice a huge difference, even though you are going through the same construct.

Some frameworks are using this header to detect xhr requests e.g. grails spring security is using this header to identify xhr request and give either a json response or html response as response.

Most Ajax libraries (Prototype, JQuery, and Dojo as of v2.1) include an X-Requested-With header that indicates that the request was made by XMLHttpRequest instead of being triggered by clicking a regular hyperlink or form submit button.

Source: http://grails-plugins.github.io/grails-spring-security-core/guide/helperClasses.html

Simplified for Kotlin:

val widthDp = resources.displayMetrics.run { widthPixels / density }
val heightDp = resources.displayMetrics.run { heightPixels / density }

Try:

cursor.column_names

mysql connector version:

mysql.connector.__version__
'2.2.9'

I am assuming that you are making a quiz kind of application. For this kind of application I have written a function which is as follows:

def shuffle(q):
"""
The input of the function will 
be the dictionary of the question
and answers. The output will
be a random question with answer
"""
selected_keys = []
i = 0
while i < len(q):
    current_selection = random.choice(q.keys())
    if current_selection not in selected_keys:
        selected_keys.append(current_selection)
        i = i+1
        print(current_selection+'? '+str(q[current_selection]))

If I will give the input of questions = {'VENEZUELA':'CARACAS', 'CANADA':'TORONTO'} and call the function shuffle(questions) Then the output will be as follows:

VENEZUELA? CARACAS
CANADA? TORONTO

You can extend this further more by shuffling the options also

The asker should use STAS answer, but for readers who use prism and no galasoft/mvvmlight, they may want to try what I used:

In the definition at the top for window or usercontrol, etc define namespace:

xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"

And just below that definition:

<i:Interaction.Triggers>
        <i:EventTrigger EventName="Closing">
            <i:InvokeCommandAction Command="{Binding WindowClosing}" CommandParameter="{Binding}" />
        </i:EventTrigger>
</i:Interaction.Triggers>

Property in your viewmodel:

public ICommand WindowClosing { get; private set; }

Attach delegatecommand in your viewmodel constructor:

this.WindowClosing = new DelegateCommand<object>(this.OnWindowClosing);

Finally, your code you want to reach on close of the control/window/whatever:

private void OnWindowClosing(object obj)
        {
            //put code here
        }

You should really think about not exiting the application. This is not how Android apps usually work.

For security reasons most browsers do not allow to modify the clipboard (except IE, of course...).

The only way to make a copy-to-clipboard function cross-browser compatible is to use Flash.

For anyone who came here looking for these files (Like me), you can usually find them by adding .map to the end of the URL:

https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css.map

Be sure to replace the version with whatever version of Bootstrap you're using.

if you don't want to use MultipartFile.transferTo(). You can write file like this

    val dir = File(filePackagePath)
    if (!dir.exists()) dir.mkdirs()

    val file = File("$filePackagePath${multipartFile.originalFilename}").apply {
        createNewFile()
    }

    FileOutputStream(file).use {
        it.write(multipartFile.bytes)
    }

The code below does just that. The below is a working example to log into a game. I made a similar file to log in into Yahoo and a kurzweilai.net forum.

Just copy the login form from any webpage's source code. Add value= "your user name" and value = "your password". Normally the -input- elements in the source code do not have the value attribute, and sometime, you will see something like that: value=""

Save the file as a html on a local machine double click it, or make a bat/cmd file to launch and close them as required.

    <!doctype html>
    <!-- saved from url=(0014)about:internet -->

    <html>
    <title>Ikariam Autologin</title>
    </head>
    <body>
    <form id="loginForm" name="loginForm" method="post"    action="http://s666.en.ikariam.com/index.php?action=loginAvatar&function=login">
    <select name="uni_url" id="logServer" class="validate[required]">
    <option  class=""  value="s666.en.ikariam.com" fbUrl=""  cookieName=""  >
            Test_en
    </option>
    </select>
    <input id="loginName" name="name" type="text" value="PlayersName" class="" />
    <input id="loginPassword" name="password" type="password" value="examplepassword" class="" />
    <input type="hidden" id="loginKid" name="kid" value=""/>
                        </form>
  <script>document.loginForm.submit();</script>       
  </body></html>

Note that -script- is just -script-. I found there is no need to specify that is is JavaScript. It works anyway. I also found out that a bare-bones version that contains just two input filds: userName and password also work. But I left a hidded input field etc. just in case. Yahoo mail has a lot of hidden fields. Some are to do with password encryption, and it counts login attempts.

Security warnings and other staff, like Mark of the Web to make it work smoothly in IE are explained here:

http://happy-snail.webs.com/autologinintogames.htm

• Spring MVC is a complete HTTP oriented MVC framework managed by the Spring Framework and based in Servlets. It would be equivalent to JSF in the JavaEE stack. The most popular elements in it are classes annotated with @Controller, where you implement methods you can access using different HTTP requests. It has an equivalent @RestController to implement REST-based APIs.
• Spring boot is a utility for setting up applications quickly, offering an out of the box configuration in order to build Spring-powered applications. As you may know, Spring integrates a wide range of different modules under its umbrella, as spring-core, spring-data, spring-web (which includes Spring MVC, by the way) and so on. With this tool you can tell Spring how many of them to use and you'll get a fast setup for them (you are allowed to change it by yourself later on).

So, Spring MVC is a framework to be used in web applications and Spring Boot is a Spring based production-ready project initializer. You might find useful visiting the Spring MVC tag wiki as well as the Spring Boot tag wiki in SO.

You must remove the constraints from the column before removing the column. The name you are referencing is a default constraint.

e.g.

alter table CompanyTransactions drop constraint [df__CompanyTr__Creat__0cdae408];
alter table CompanyTransactions drop column [Created];

If you're referring to the URL in the address bar, then

window.location.search

will give you just the query string part. Note that this includes the question mark at the beginning.

If you're referring to any random URL stored in (e.g.) a string, you can get at the query string by taking a substring beginning at the index of the first question mark by doing something like:

url.substring(url.indexOf("?"))

That assumes that any question marks in the fragment part of the URL have been properly encoded. If there's a target at the end (i.e., a # followed by the id of a DOM element) it'll include that too.

I think the root for this confusion is well explained in this wikipedia article.

While the IANA-registered MIME type for ICO files is image/vnd.microsoft.icon, it was submitted to IANA in 2003 by a third party and is not recognised by Microsoft software, which uses image/x-icon instead.

If even the inventor of the ICO format does not use the official MIME type, I will use image/x-icon, too.

Yes. You know that you can put any Object into the Object parameter of most JOptionPane.showXXX methods, and often that Object happens to be a JPanel.

In your situation, perhaps you could use a JPanel that has several JTextFields in it:

import javax.swing.*;

public class JOptionPaneMultiInput {
   public static void main(String[] args) {
      JTextField xField = new JTextField(5);
      JTextField yField = new JTextField(5);

      JPanel myPanel = new JPanel();
      myPanel.add(new JLabel("x:"));
      myPanel.add(xField);
      myPanel.add(Box.createHorizontalStrut(15)); // a spacer
      myPanel.add(new JLabel("y:"));
      myPanel.add(yField);

      int result = JOptionPane.showConfirmDialog(null, myPanel, 
               "Please Enter X and Y Values", JOptionPane.OK_CANCEL_OPTION);
      if (result == JOptionPane.OK_OPTION) {
         System.out.println("x value: " + xField.getText());
         System.out.println("y value: " + yField.getText());
      }
   }
}

When a chip gets power all of it's registers contain random values. It's not possible to have an an initial value. It will always be random.

This is why we have reset signals, to reset registers to a known value. The reset is controlled by something off chip, and we write our code to use it.

always @(posedge clk) begin
    if (reset == 1) begin // For an active high reset
        data_reg = 8'b10101011;
    end else begin
        data_reg = next_data_reg;
    end
end

np.percentile DOES NOT calculate the values of Q1, median, and Q3. Consider the sorted list below:

samples = [1, 1, 8, 12, 13, 13, 14, 16, 19, 22, 27, 28, 31]

running np.percentile(samples, [25, 50, 75]) returns the actual values from the list:

Out[1]: array([12., 14., 22.])

However, the quartiles are Q1=10.0, Median=14, Q3=24.5 (you can also use this link to find the quartiles and median online). One can use the below code to calculate the quartiles and median of a sorted list (because of sorting this approach requires O(nlogn) computations where n is the number of items). Moreover, finding quartiles and median can be done in O(n) computations using the Median of medians Selection algorithm (order statistics).

samples = sorted([28, 12, 8, 27, 16, 31, 14, 13, 19, 1, 1, 22, 13])

def find_median(sorted_list):
    indices = []

    list_size = len(sorted_list)
    median = 0

    if list_size % 2 == 0:
        indices.append(int(list_size / 2) - 1)  # -1 because index starts from 0
        indices.append(int(list_size / 2))

        median = (sorted_list[indices[0]] + sorted_list[indices[1]]) / 2
        pass
    else:
        indices.append(int(list_size / 2))

        median = sorted_list[indices[0]]
        pass

    return median, indices
    pass

median, median_indices = find_median(samples)
Q1, Q1_indices = find_median(samples[:median_indices[0]])
Q2, Q2_indices = find_median(samples[median_indices[-1] + 1:])

quartiles = [Q1, median, Q2]

print("(Q1, median, Q3): {}".format(quartiles))

You can use bind instead of volume if you want to mount only one folder, not create special storage for a container:

1. Build your image with tag :

   docker build . -t <image>

2. Run your image and bind current $(pwd) directory where app.py stores and map it to /root/example/ inside your container.

   docker run --mount type=bind,source="$(pwd)",target=/root/example/ <image> python app.py

You can only use just the name of the type (with its namespace, of course) if the type is in mscorlib or the calling assembly. Otherwise, you've got to include the assembly name as well:

Type type = Type.GetType("Namespace.MyClass, MyAssembly");

If the assembly is strongly named, you've got to include all that information too. See the documentation for Type.GetType(string) for more information.

Alternatively, if you have a reference to the assembly already (e.g. through a well-known type) you can use Assembly.GetType:

Assembly asm = typeof(SomeKnownType).Assembly;
Type type = asm.GetType(namespaceQualifiedTypeName);

Slight modification of Laurynas' plugin based on Igor's code. This accommodates possible labels associated with the radio buttons being targeted:

(function ($) {
    $.fn.uncheckableRadio = function () {

        return this.each(function () {
            var radio = this;
                $('label[for="' + radio.id + '"]').add(radio).mousedown(function () {
                    $(radio).data('wasChecked', radio.checked);
                });

                $('label[for="' + radio.id + '"]').add(radio).click(function () {
                    if ($(radio).data('wasChecked'))
                        radio.checked = false;
                });
           });
    };
})(jQuery);

If you're copying data like that, that probably means your datamodel isn't fully normalized, right? Is it possible to make one list of countries and do a JOIN more?

Instead of a JOIN you could also use virtual tables so you don't have to change the queries in your system.

TypeDescriptor.GetConverter(PropertyObject).ConvertFrom(Value)

TypeDescriptor is class having method GetConvertor which accept a Type object and then you can call ConvertFrom method to convert the value for that specified object.

I'm not sure about HQL, but in JPA you just call the query's setParameter with the parameter and collection.

Query q = entityManager.createQuery("SELECT p FROM Peron p WHERE name IN (:names)");
q.setParameter("names", names);

where names is the collection of names you're searching for

Collection<String> names = new ArrayList<String();
names.add("Joe");
names.add("Jane");
names.add("Bob");

As link-only answers are not preferred, I will just copy and paste the content of the link of the accepted answer

Which Log file? Well -- you can check the physical path by right-clicking on the System Log (e.g. Server Manager | Diagnostics | Event Viewer | Windows Logs). The default physical path is %SystemRoot%\System32\Winevt\Logs\System.evtx.

You can create a Custom Filter and filter by "Source: WAS" to quickly see only entries generated by IIS.

You may need first to enable logging of such even for a specific App Pool -- by default App Pool has only 3 recycle events out of 8 enabled. To change it using GUI: II S Manager | Application Pools | Select App Pool -> Advanced Settings | Generate Recycle Event Log Entry.

This has bugged me for some time. What I usually end up doing is rebuilding my external library using debug mode, then copy both .dll and the .pdb file to the bin of my website. This allows me to step into the libarary code.

There is no tuple type in Go, and you are correct, the multiple values returned by functions do not represent a first-class object.

Nick's answer shows how you can do something similar that handles arbitrary types using interface{}. (I might have used an array rather than a struct to make it indexable like a tuple, but the key idea is the interface{} type)

My other answer shows how you can do something similar that avoids creating a type using anonymous structs.

These techniques have some properties of tuples, but no, they are not tuples.

1. Make sure that you have <%= csrf_meta_tag %> in your layout
2. Add a beforeSend to include the csrf-token in the ajax request to set the header. This is only required for post requests.

The code to read the csrf-token is available in the rails/jquery-ujs, so imho it is easiest to just use that, as follows:

$.ajax({
  url: url,
  method: 'post',
  beforeSend: $.rails.CSRFProtection,
  data: {
    // ...
  }
})

int i = myObject.myField.CastTo<int>();

See here: Git doesn't clone all branches on subsequent clones?

If you really want this by pulling branches instead of push --mirror, you can have a look here:

"fetch --all" in a git bare repository doesn't synchronize local branches to the remote ones

This answer provides detailed steps on how to achieve that relatively easily:

I want to throw in another solution that looks nice and is fast for short lists.

def mc(seq=L):
    "max/count"
    max_element = max(seq, key=seq.count)
    return (max_element, seq.count(max_element))

You can benchmark this with the code provided by Ned Deily which will give you these results for the smallest test case:

3.5.2 (default, Nov  7 2016, 11:31:36) 
[GCC 6.2.1 20160830] 

dict iteritems (4, 6) 0.2069783889998289
dict items (4, 6) 0.20462976200065896
defaultdict iteritems (4, 6) 0.2095775119996688
sort groupby generator expression (4, 6) 0.4473949929997616
sort groupby list comprehension (4, 6) 0.4367636879997008
counter (4, 6) 0.3618192010007988
max/count (4, 6) 0.20328268999946886

But beware, it is inefficient and thus gets really slow for large lists!

This might be more desirable, that is use float instead

SELECT fullName, CAST(totalBal as float) totalBal FROM client_info ORDER BY totalBal DESC

SUMIF didn't worked for me, had to use SUMIFS.

=SUMIFS(TableAmount,TableMonth,"January")

TableAmount is the table to sum the values, TableMonth the table where we search the condition and January, of course, the condition to meet.

Hope this can help someone!

Use enumerate, list.index returns the index of first match found.

>>> t = [False, False, False, False, True, True, False, True, False, False, False, False, False, False, False, False]
>>> [i for i, x in enumerate(t) if x]
[4, 5, 7]

For huge lists, it'd be better to use itertools.compress:

>>> from itertools import compress
>>> list(compress(xrange(len(t)), t))
[4, 5, 7]
>>> t = t*1000
>>> %timeit [i for i, x in enumerate(t) if x]
100 loops, best of 3: 2.55 ms per loop
>>> %timeit list(compress(xrange(len(t)), t))
1000 loops, best of 3: 696 µs per loop

Let us consider a table which stores the shift details

Please check the SQL queries to generate table and finding the schedule based on an input(time)

Declaring the Table variable

declare @MyShiftTable table(MyShift int,StartTime time,EndTime time)

Adding values to Table variable

insert into @MyShiftTable select 1,'01:17:40.3530000','02:17:40.3530000'
insert into @MyShiftTable select 2,'09:17:40.3530000','03:17:40.3530000'
insert into @MyShiftTable select 3,'10:17:40.3530000','18:17:40.3530000'

Creating another table variable with an additional field named "Flag"

declare @Temp table(MyShift int,StartTime time,EndTime time,Flag int)

Adding values to temporary table with swapping the start and end time

insert into @Temp select MyShift,case when (StartTime>EndTime) then EndTime else StartTime end,case when (StartTime>EndTime) then StartTime else EndTime end,case when (StartTime>EndTime) then 1 else 0 end from @MyShiftTable

Creating input variable to find the Shift

declare @time time=convert(time,'10:12:40.3530000')

Query to find the shift corresponding to the time supplied

select myShift from @Temp where
(@time between StartTime and EndTime and Flag=0) or (@time not between StartTime and EndTime and Flag=1)

Incredibly late to the party (my apologies) but a more generic solution than those provided here can be implemented (will work with primitives and non-primitives alike):

public static void swap(final Object array, final int i, final int j) {
    final Object atI = Array.get(array, i);
    Array.set(array, i, Array.get(array, j));
    Array.set(array, j, atI);
}

You lose compile-time safety, but it should do the trick.

Note I: You'll get a NullPointerException if the given array is null, an IllegalArgumentException if the given array is not an array, and an ArrayIndexOutOfBoundsException if either of the indices aren't valid for the given array.

Note II: Having separate methods for this for every array type (Object[] and all primitive types) would be more performant (using the other approaches given here) since this requires some boxing/unboxing. But it'd also be a whole lot more code to write/maintain.

if qs.count()==1:
        print('cart id exists')
        if ....

else:    
        return render(request,"carts/home.html",{})

Such type of code will also return you the same error this is because of the intents as the return statement should be for else not for if statement.

above code can be changed to

if qs.count()==1:
        print('cart id exists')
        if ....

else:   

return render(request,"carts/home.html",{})

This may solve such issues

value = value.setScale(2, RoundingMode.CEILING)

Had this problem after install Git Extensions v3.48. Tried to install mysysgit again but same problem. At the end, had to disable (please consider security implications!) Git SSL verification with:

git config --global http.sslVerify false

but if you have a domain certificate better add it to (Win7)

C:\Program Files (x86)\Git\bin\curl-ca-bundle.crt

I've never heard of such a function, but it would be trivial enough to implement...

def die(msg)
  puts msg
  exit
end

Then, if this is defined in some .rb file that you include in all your scripts, you are golden.... just because it's not built in doesn't mean you can't do it yourself ;-)

Cast one of the integers to a float to force the operation to be done with floating point math. Otherwise integer math is always preferred. So:

v = (float)s / t;

Please find this example code, You could use hidden form with POST to send data to that your URL like below:

function open_win()
{
    var ChatWindow_Height = 650;
    var ChatWindow_Width = 570;

    window.open("Live Chat", "chat", "height=" + ChatWindow_Height + ", width = " + ChatWindow_Width);

    //Hidden Form
    var form = document.createElement("form");
    form.setAttribute("method", "post");
    form.setAttribute("action", "http://localhost:8080/login");
    form.setAttribute("target", "chat");

    //Hidden Field
    var hiddenField1 = document.createElement("input");
    var hiddenField2 = document.createElement("input");

    //Login ID
    hiddenField1.setAttribute("type", "hidden");
    hiddenField1.setAttribute("id", "login");
    hiddenField1.setAttribute("name", "login");
    hiddenField1.setAttribute("value", "PreethiJain005");

    //Password
    hiddenField2.setAttribute("type", "hidden");
    hiddenField2.setAttribute("id", "pass");
    hiddenField2.setAttribute("name", "pass");
    hiddenField2.setAttribute("value", "Pass@word$");

    form.appendChild(hiddenField1);
    form.appendChild(hiddenField2);

    document.body.appendChild(form);
    form.submit();

}

For a multidimensional array in PHP4 you can use the following addition to the code posted by Udo G:

function js_str($s) {
   return '"'.addcslashes($s, "\0..\37\"\\").'"';
}

function js_array($array, $keys_array) {
  foreach ($array as $key => $value) {
    $new_keys_array = $keys_array;
    $new_keys_array[] = $key;
    if(is_array($value)) {          
      echo 'javascript_array';
      foreach($new_keys_array as $key) {
        echo '["'.$key.'"]';
      }
      echo ' = new Array();';

      js_array($value, $new_keys_array);
    } else {
      echo 'javascript_array';
      foreach($new_keys_array as $key) {
        echo '["'.$key.'"]';
      }
      echo ' = '.js_str($value).";";                        
    }
  } 
}

echo 'var javascript_array = new Array();';
js_array($php_array, array());

First you can get the rowid of the selected row with respect of getGridParam method and 'selrow' as the parameter and then you can use getCell to get the cell value from the corresponding column:

var myGrid = $('#list'),
    selRowId = myGrid.jqGrid ('getGridParam', 'selrow'),
    celValue = myGrid.jqGrid ('getCell', selRowId, 'columnName');

The 'columnName' should be the same name which you use in the 'name' property of the colModel. If you need values from many column of the selected row you can use getRowData instead of getCell.

CREATE OR REPLACE FUNCTION HASTANE.getXXXXX(p_rowid in rowid) return VARCHAR2
  as
          l_data long;
  begin
         select XXXXXX into l_data from XXXXX where rowid = p_rowid;
         return substr( l_data, 1, 4000);
  end getlabrapor1;

AngularJS form elements look for the required attribute to perform validation functions. ng-required allows you to set the required attribute depending on a boolean test (for instance, only require field B - say, a student number - if the field A has a certain value - if you selected "student" as a choice)

As an example, <input required> and <input ng-required="true"> are essentially the same thing

If you are wondering why this is this way, (and not just make <input required="true"> or <input required="false">), it is due to the limitations of HTML - the required attribute has no associated value - its mere presence means (as per HTML standards) that the element is required - so angular needs a way to set/unset required value (required="false" would be invalid HTML)

You must add a full table inside the td

    <table>_x000D_
      <tr>_x000D_
        <td>_x000D_
          <table>_x000D_
            <tr>_x000D_
              <td>_x000D_
                ..._x000D_
              </td>_x000D_
            </tr>_x000D_
          </table>_x000D_
        </td>_x000D_
      </tr>_x000D_
    </table>

From Git v1.7.8 to v1.8.5.6, you can use this:

git fetch <remote> --prune --tags

Update

This doesn't work on newer versions of git (starting with v1.9.0) because of commit e66ef7ae6f31f2. I don't really want to delete it though since it did work for some people.

As suggested by "Chad Juliano", with all Git version since v1.7.8, you can use the following command:

git fetch --prune <remote> +refs/tags/*:refs/tags/*

You may need to enclose the tags part with quotes (on Windows for example) to avoid wildcard expansion:

git fetch --prune <remote> "+refs/tags/*:refs/tags/*"

Until now, I was using cmd processes in order to extract an .iso file, copy it into a temporary path from server and extracted on a usb stick. Recently I've found that this is working perfectly with .iso's that are less than 10Gb. For a iso like 29Gb this method gets stuck somehow.

    public void ExtractArchive()
    {
        try
        {

            try
            {
                Directory.Delete(copyISOLocation.OutputPath, true); 
            }
            catch (Exception e) when (e is IOException || e is UnauthorizedAccessException)
            {
            }

            Process cmd = new Process();
            cmd.StartInfo.FileName = "cmd.exe";
            cmd.StartInfo.RedirectStandardInput = true;
            cmd.StartInfo.RedirectStandardOutput = true;
            cmd.StartInfo.CreateNoWindow = true;
            cmd.StartInfo.UseShellExecute = false;
            cmd.StartInfo.WindowStyle = ProcessWindowStyle.Normal;

            //stackoverflow
            cmd.StartInfo.Arguments = "-R";

            cmd.Disposed += (sender, args) => {
                Console.WriteLine("CMD Process disposed");
            };
            cmd.Exited += (sender, args) => {
                Console.WriteLine("CMD Process exited");
            };
            cmd.ErrorDataReceived += (sender, args) => {
                Console.WriteLine("CMD Process error data received");
                Console.WriteLine(args.Data);
            };
            cmd.OutputDataReceived += (sender, args) => {
                Console.WriteLine("CMD Process Output data received");
                Console.WriteLine(args.Data);
            };

            //stackoverflow


            cmd.Start();

            cmd.StandardInput.WriteLine("C:");
            //Console.WriteLine(cmd.StandardOutput.Read());
            cmd.StandardInput.Flush();

            cmd.StandardInput.WriteLine("cd C:\\\"Program Files (x86)\"\\7-Zip\\");
            //Console.WriteLine(cmd.StandardOutput.ReadToEnd());
            cmd.StandardInput.Flush();

            cmd.StandardInput.WriteLine(string.Format("7z.exe x -o{0} {1}", copyISOLocation.OutputPath, copyISOLocation.TempIsoPath));
            //Console.WriteLine(cmd.StandardOutput.ReadToEnd());
            cmd.StandardInput.Flush();
            cmd.StandardInput.Close();
            cmd.WaitForExit();
            Console.WriteLine(cmd.StandardOutput.ReadToEnd());
            Console.WriteLine(cmd.StandardError.ReadToEnd());

You'll probably want to try textContent instead of innerHTML.

Given innerHTML will return DOM content as a String and not exclusively the "text" in the div. It's fine if you know that your div contains only text but not suitable if every use case. For those cases, you'll probably have to use textContent instead of innerHTML

For example, considering the following markup:

<div id="test">
  Some <span class="foo">sample</span> text.
</div>

You'll get the following result:

var node = document.getElementById('test'),

htmlContent = node.innerHTML,
// htmlContent = "Some <span class="foo">sample</span> text."

textContent = node.textContent;
// textContent = "Some sample text."

See MDN for more details:

• textContent
• innerHTML

If you are using a Form Control, you can get the same property as ActiveX by using OLEFormat.Object property of the Shape Object. Better yet assign it in a variable declared as OptionButton to get the Intellisense kick in.

Dim opt As OptionButton

With Sheets("Sheet1") ' Try to be always explicit
    Set opt = .Shapes("Option Button 1").OLEFormat.Object ' Form Control
    Debug.Pring opt.Value ' returns 1 (true) or -4146 (false)
End With

But then again, you really don't need to know the value.
If you use Form Control, you associate a Macro or sub routine with it which is executed when it is selected. So you just need to set up a sub routine that identifies which button is clicked and then execute a corresponding action for it.

For example you have 2 Form Control Option Buttons.

Sub CheckOptions()
    Select Case Application.Caller
    Case "Option Button 1"
    ' Action for option button 1
    Case "Option Button 2"
    ' Action for option button 2
    End Select
End Sub

In above code, you have only one sub routine assigned to both option buttons.
Then you test which called the sub routine by checking Application.Caller.
This way, no need to check whether the option button value is true or false.

You don't need to use display:inline to achieve this:

.inline { 
    border: 1px solid red;
    margin:10px;
    float:left;/*Add float left*/
    margin :10px;
}

You can use float-left.

Using float:left is best way to place multiple div elements in one line. Why? Because inline-block does have some problem when is viewed in IE older versions.

fiddle

That's perfectly normal. If you want gulp-cli available on the command line, you need to install it globally.

npm install --global gulp-cli

See the install instruction.

Also, node_modules/.bin/ isn't in your $PATH. But it is automatically added by npm when running npm scripts (see this blog post for reference).

So you could add scripts to your package.json file:

{
    "name": "your-app",
    "version": "0.0.1",
    "scripts": {
        "gulp": "gulp",
        "minify": "gulp minify"
    }
}

You could then run npm run gulp or npm run minify to launch gulp tasks.

Just use:

if file_name.endswith(tuple(extensions)):

This page contains all the cached urls

chrome://cache

Unfortunately to actually see the file you have to select everything on the page and paste it in this tool: http://www.sensefulsolutions.com/2012/01/viewing-chrome-cache-easy-way.html

This should work fine:

{{ 'http://' ~ app.request.host }}

To add a filter - like 'trans' - in the same tag use

{{ ('http://' ~ app.request.host) | trans }}

As Adam Elsodaney points out, you can also use string interpolation, this does require double quoted strings:

{{ "http://#{app.request.host}" }}

The newest camera2 apis work fine w/ an emulator that has camera support enabled.

Example for using the newer API:

https://github.com/googlesamples/android-Camera2Basic/blob/master/Application/src/main/java/com/example/android/camera2basic/AutoFitTextureView.java

Some new java online compiler and runner:

1. Java Launch
2. Srikanthdaggumalli

These sites are in under development. But you can view the compilation errors, Runtime Exceptions as well as output of a java program by clicking on the TryItYourself link.

Once you have a JArray you can treat it just like any other Enumerable object, and using linq you can access them, check them, verify them, and select them.

var str = @"[1, 2, 3]";
var jArray = JArray.Parse(str);
Console.WriteLine(String.Join("-", jArray.Where(i => (int)i > 1).Select(i => i.ToString())));

I did it with next command:

sudo killall mysqld

This happened to me, I tried all the possible solutions with no luck!

Finaly I realized that the problem was with Jupyter notebook environment, not with sklearn!

I solved the problem by re-installing Jupyter at the same environment as sklearn

the command is: conda install -c anaconda ipython. Done...

Python boolean keywords are True and False, notice the capital letters. So like this:

a = True;
b = True;
match_var = True if a == b else False
print match_var;

When compiled and run, this prints:

True

From my perspective, $watch would be the best practice way.

You can actually simplify your example a bit:

function TimerCtrl1($scope, Timer) {
  $scope.$watch( function () { return Timer.data; }, function (data) {
    $scope.lastUpdated = data.lastUpdated;
    $scope.calls = data.calls;
  }, true);
}

That's all you need.

Since the properties are updated simultaneously, you only need one watch. Also, since they come from a single, rather small object, I changed it to just watch the Timer.data property. The last parameter passed to $watch tells it to check for deep equality rather than just ensuring that the reference is the same.

To provide a little context, the reason I would prefer this method to placing the service value directly on the scope is to ensure proper separation of concerns. Your view shouldn't need to know anything about your services in order to operate. The job of the controller is to glue everything together; its job is to get the data from your services and process them in whatever way necessary and then to provide your view with whatever specifics it needs. But I don't think its job is to just pass the service right along to the view. Otherwise, what's the controller even doing there? The AngularJS developers followed the same reasoning when they chose not to include any "logic" in the templates (e.g. if statements).

To be fair, there are probably multiple perspectives here and I look forward to other answers.

i have same issue with react-native library called linear-gradient, but i think the problem caused by adding blank space between -L -L... here the screen of error

im trying all solution in this page, thank you for help

float and double don't store decimal places. They store binary places: float is (assuming IEEE 754) 24 significant bits (7.22 decimal digits) and double is 53 significant bits (15.95 significant digits).

Converting from double to float will give you the closest possible float, so rounding won't help you. Goining the other way may give you "noise" digits in the decimal representation.

#include <stdio.h>

int main(void) {
    double orig = 12345.67;
    float f = (float) orig;
    printf("%.17g\n", f); // prints 12345.669921875
    return 0;
}

To get a double approximation to the nice decimal value you intended, you can write something like:

double round_to_decimal(float f) {
    char buf[42];
    sprintf(buf, "%.7g", f); // round to 7 decimal digits
    return atof(buf);
}

Don't do

print("\n")

on the last line. It will give you 2 empty lines.

Take a look at numpy.reshape .

>>> arr = numpy.zeros((50,100,25))
>>> arr.shape
# (50, 100, 25)

>>> new_arr = arr.reshape(5000,25)
>>> new_arr.shape   
# (5000, 25)

# One shape dimension can be -1. 
# In this case, the value is inferred from 
# the length of the array and remaining dimensions.
>>> another_arr = arr.reshape(-1, arr.shape[-1])
>>> another_arr.shape
# (5000, 25)

Just use

document.getElementById('submitbutton').disabled = !cansubmit;

instead of the the if-clause that works only one-way.

Also, for the users who have JS disabled, I'd suggest to set the initial disabled by JS only. To do so, just move the script behind the <form> and call checkform(); once.

Let's start with the uncomfortable truth: GWT compiler performance is really lousy. You can use some hacks here and there, but you're not going to get significantly better performance.

A nice performance hack you can do is to compile for only specific browsers, by inserting the following line in your gwt.xml:

<define-property name="user.agent" values="ie6,gecko,gecko1_8"></define-property>

or in gwt 2.x syntax, and for one browser only:

<set-property name="user.agent" value="gecko1_8"/>

This, for example, will compile your application for IE and FF only. If you know you are using only a specific browser for testing, you can use this little hack.

Another option: if you are using several locales, and again using only one for testing, you can comment them all out so that GWT will use the default locale, this shaves off some additional overhead from compile time.

Bottom line: you're not going to get order-of-magnitude increase in compiler performance, but taking several relaxations, you can shave off a few minutes here and there.

Try

//*[text()='qwerty'] because . is your current element

I faced exactly the same problem and i simply resolved the issue with the help of JSON.stringify() as follow:-

if (JSON.stringify(results.userId) === JSON.stringify(AnotherMongoDocument._id)) {
        console.log('This is never true');
}

Did you try passwd -d root? Most likely, this will do what you want.

You can also manually edit /etc/shadow: (Create a backup copy. Be sure that you can log even if you mess up, for example from a rescue system.) Search for "root". Typically, the root entry looks similar to

root:$X$SK5xfLB1ZW:0:0...

There, delete the second field (everything between the first and second colon):

root::0:0...

Some systems will make you put an asterisk (*) in the password field instead of blank, where a blank field would allow no password (CentOS 8 for example)

root:*:0:0...

Save the file, and try logging in as root. It should skip the password prompt. (Like passwd -d, this is a "no password" solution. If you are really looking for a "blank password", that is "ask for a password, but accept if the user just presses Enter", look at the manpage of mkpasswd, and use mkpasswd to create the second field for the /etc/shadow.)

The Q library by kriskowal includes callback-to-promise functions. A method like this:

obj.prototype.dosomething(params, cb) {
  ...blah blah...
  cb(error, results);
}

can be converted with Q.ninvoke

Q.ninvoke(obj,"dosomething",params).
then(function(results) {
});

Solution:

sort -k 2 -n filename

more verbosely written as:

sort --key 2 --numeric-sort filename

Example:

$ cat filename
A 12
B 48
C 3

$ sort --key 2 --numeric-sort filename 
C 3
A 12
B 48

Explanation:

• -k # - this argument specifies the first column that will be used to sort. (note that column here is defined as a whitespace delimited field; the argument -k5 will sort starting with the fifth field in each line, not the fifth character in each line)

• -n - this option specifies a "numeric sort" meaning that column should be interpreted as a row of numbers, instead of text.

More:

Other common options include:

• -r - this option reverses the sorting order. It can also be written as --reverse.
• -i - This option ignores non-printable characters. It can also be written as --ignore-nonprinting.
• -b - This option ignores leading blank spaces, which is handy as white spaces are used to determine the number of rows. It can also be written as --ignore-leading-blanks.
• -f - This option ignores letter case. "A"=="a". It can also be written as --ignore-case.
• -t [new separator] - This option makes the preprocessing use a operator other than space. It can also be written as --field-separator.

There are other options, but these are the most common and helpful ones, that I use often.

The commands are given in your Bitbucket account. When you open the repository in Bitbucket, it gives you the entire list of commands you need to execute in the order. What is missing is where exactly you need to execute those commands (Git CLI, SourceTree terminal).

I struggled with these commands as I was writing these in Git CLI, but we need to execute the commands in the SourceTree terminal window and the repository will be added to Bitbucket.

I've recently made a page loader in vanilla .js for a project, just wanted to share it as all the other answers are jQuery based. It's a plug and play, one-liner.

It automatically creates a <div> tag prepended to the <body>, with a <svg> loader. If you want to customize the color you just have to update the t variable at the beginning of the script.

var t="#106CF6",u=document.querySelector("*"),s=document.createElement("style"),a=document.createElement("aside"),m="http://www.w3.org/2000/svg",g=document.createElementNS(m,"svg"),c=document.createElementNS(m,"circle");document.head.appendChild(s),(s.innerHTML="#sailor {background:"+t+";color:"+t+";display:flex;align-items:center;justify-content:center;position:fixed;top:0;height:100vh;width:100vw;z-index:2147483647}@keyframes swell{to{transform:rotate(360deg)}}#sailor svg{animation:.3s swell infinite linear}"),a.setAttribute("id","sailor"),document.body.prepend(a),g.setAttribute("height","50"),g.setAttribute("filter","brightness(175%)"),g.setAttribute("viewBox","0 0 100 100"),a.prepend(g),c.setAttribute("cx","50"),c.setAttribute("cy","50"),c.setAttribute("r","35"),c.setAttribute("fill","none"),c.setAttribute("stroke","currentColor"),c.setAttribute("stroke-dasharray","165 57"),c.setAttribute("stroke-width","10"),g.prepend(c),(u.style.pointerEvents="none"),(u.style.userSelect="none"),(u.style.cursor="wait"),window.addEventListener("load",function(){setTimeout(function(){(u.style.pointerEvents=""),(u.style.userSelect=""),(u.style.cursor="");a.remove()},100)})

You can see the full project and documentation on the GitHub

Java's String implements hashCode like this:

public int hashCode()

Returns a hash code for this string. The hash code for a String object is computed as

     s[0]*31^(n-1) + s[1]*31^(n-2) + ... + s[n-1]

using int arithmetic, where s[i] is the ith character of the string, n is the length of the string, and ^ indicates exponentiation. (The hash value of the empty string is zero.) 

So something like this:

int HashTable::hash (string word) {
    int result = 0;
    for(size_t i = 0; i < word.length(); ++i) {
        result += word[i] * pow(31, i);
    }
    return result;
}

a = [[] for index in range(1, n)]

I've updated Eric D's answer for Swift 5:

 func convertStringToDictionary(text: String) -> [String:AnyObject]? {
    if let data = text.data(using: .utf8) {
        do {
            let json = try JSONSerialization.jsonObject(with: data, options: .mutableContainers) as? [String:AnyObject]
            return json
        } catch {
            print("Something went wrong")
        }
    }
    return nil
}

if you have already pushed your commit then. do

git checkout origin/<remote-branch> <filename>
git commit --amend

AND If you have not pushed the changes on the server you can use

git reset --soft HEAD~1

Detecting CSS 3D transforms

Modernizr can detect CSS 3D transforms, yeah. The truthiness of Modernizr.csstransforms3d will tell you if the browser supports them.

The above link lets you select which tests to include in a Modernizr build, and the option you're looking for is available there.

Detecting IE specifically

Alternatively, as user356990 answered, you can use conditional comments if you're searching for IE and IE alone. Rather than creating a global variable, you can use HTML5 Boilerplate's <html> conditional comments trick to assign a class:

<!--[if lt IE 7]>      <html class="no-js lt-ie9 lt-ie8 lt-ie7"> <![endif]-->
<!--[if IE 7]>         <html class="no-js lt-ie9 lt-ie8"> <![endif]-->
<!--[if IE 8]>         <html class="no-js lt-ie9"> <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js"> <!--<![endif]-->

If you already have jQuery initialised, you can just check with $('html').hasClass('lt-ie9'). If you need to check which IE version you're in so you can conditionally load either jQuery 1.x or 2.x, you can do something like this:

myChecks.ltIE9 = (function(){
    var htmlElemClasses = document.querySelector('html').className.split(' ');
    if (!htmlElemClasses){return false;}
    for (var i = 0; i < htmlElemClasses.length; i += 1 ){
      var klass = htmlElemClasses[i];
      if (klass === 'lt-ie9'){
        return true;
      }
    }
    return false;
}());

N.B. IE conditional comments are only supported up to IE9 inclusive. From IE10 onwards, Microsoft encourages using feature detection rather than browser detection.

Whichever method you choose, you'd then test with

if ( myChecks.ltIE9 || Modernizr.csstransforms3d ){
    // iframe or flash fallback
} 

Don't take that || literally, of course.

In your $CATALINA_BASE/conf/context.xml add block below before </Context>

<Resources cachingAllowed="true" cacheMaxSize="100000" />

For more information: http://tomcat.apache.org/tomcat-8.0-doc/config/resources.html

In simple terms, you just need to edit the .gitmodules file, then resync and update:

Edit the file, either via a git command or directly:

git config --file=.gitmodules -e

or just:

vim .gitmodules

then resync and update:

git submodule sync
git submodule update --init --recursive --remote

Your test cases where you cannot connect with "ServerName\Instance" but ARE able to connect to the server via "ServerName,Port" is what happens when you VPN into a network with Microsoft VPN. (I had this issue). For my VPN Issue I simply use the static port numbers to get around it.

This is appearently due to VPN not forwarding UDP Packets, allowing only TCP Connections.

In your case your firewall or security settings or antivirus or whatever may be blocking UDP.

I would suggest you check your firewall setting to specifically allow for UDP.

Browser Artical

On startup, SQL Server Browser starts and claims UDP port 1434. SQL Server Browser reads the registry, identifies all SQL Server instances on the computer, and notes the ports and named pipes that they use. When a server has two or more network cards, SQL Server Browser will return all ports enabled for SQL Server. SQL Server 2005 and SQL Server Browser support ipv6 and ipv4.

When SQL Server 2000 and SQL Server 2005 clients request SQL Server resources, the client network library sends a UDP message to the server using port 1434. SQL Server Browser responds with the TCP/IP port or named pipe of the requested instance. The network library on the client application then completes the connection by sending a request to the server using the port or named pipe of the desired instance.

Using a Firewall

To communicate with the SQL Server Browser service on a server behind a firewall, open UDP port 1434 in addition to the TCP port used by SQL Server (for example, 1433).

for i in range(10,0,-1):
    print i,

The range() function will include the first value and exclude the second.

I fiddled around and came up with this. The idea is that the object has all the Array.prototype methods defined, but executes them on a separate array object. This gives the ability to observe methods like shift(), pop() etc. Although some methods like concat() won't return the OArray object. Overloading those methods won't make the object observable if accessors are used. To achieve the latter, the accessors are defined for each index within given capacity.

Performance wise... OArray is around 10-25 times slower compared to the plain Array object. For the capasity in a range 1 - 100 the difference is 1x-3x.

class OArray {
    constructor(capacity, observer) {

        var Obj = {};
        var Ref = []; // reference object to hold values and apply array methods

        if (!observer) observer = function noop() {};

        var propertyDescriptors = Object.getOwnPropertyDescriptors(Array.prototype);

        Object.keys(propertyDescriptors).forEach(function(property) {
            // the property will be binded to Obj, but applied on Ref!

            var descriptor = propertyDescriptors[property];
            var attributes = {
                configurable: descriptor.configurable,
                enumerable: descriptor.enumerable,
                writable: descriptor.writable,
                value: function() {
                    observer.call({});
                    return descriptor.value.apply(Ref, arguments);
                }
            };
            // exception to length
            if (property === 'length') {
                delete attributes.value;
                delete attributes.writable;
                attributes.get = function() {
                    return Ref.length
                };
                attributes.set = function(length) {
                    Ref.length = length;
                };
            }

            Object.defineProperty(Obj, property, attributes);
        });

        var indexerProperties = {};
        for (var k = 0; k < capacity; k++) {

            indexerProperties[k] = {
                configurable: true,
                get: (function() {
                    var _i = k;
                    return function() {
                        return Ref[_i];
                    }
                })(),
                set: (function() {
                    var _i = k;
                    return function(value) {
                        Ref[_i] = value;
                        observer.call({});
                        return true;
                    }
                })()
            };
        }
        Object.defineProperties(Obj, indexerProperties);

        return Obj;
    }
}

Since this answer still gets voted up, I want to point out that you should almost never need to look in the header files. If you want to write reliable code, you're much better served by looking in the standard. A better question than "how is off_t defined on my machine" is "how is off_t defined by the standard?". Following the standard means that your code will work today and tomorrow, on any machine.

In this case, off_t isn't defined by the C standard. It's part of the POSIX standard, which you can browse here.

Unfortunately, off_t isn't very rigorously defined. All I could find to define it is on the page on sys/types.h:

blkcnt_t and off_t shall be signed integer types.

This means that you can't be sure how big it is. If you're using GNU C, you can use the instructions in the answer below to ensure that it's 64 bits. Or better, you can convert to a standards defined size before putting it on the wire. This is how projects like Google's Protocol Buffers work (although that is a C++ project).

So, I think "where do I find the definition in my header files" isn't the best question. But, for completeness here's the answer:

On my machine (and most machines using glibc) you'll find the definition in bits/types.h (as a comment says at the top, never directly include this file), but it's obscured a bit in a bunch of macros. An alternative to trying to unravel them is to look at the preprocessor output:

#include <stdio.h>
#include <sys/types.h>

int main(void) {
  off_t blah;

  return 0;
}

And then:

$ gcc -E sizes.c  | grep __off_t
typedef long int __off_t;
....

However, if you want to know the size of something, you can always use the sizeof() operator.

Edit: Just saw the part of your question about the __. This answer has a good discussion. The key point is that names starting with __ are reserved for the implementation (so you shouldn't start your own definitions with __).

On SmtpClient there is an EnableSsl property that you would set.

i.e.

SmtpClient client = new SmtpClient(exchangeServer);
client.EnableSsl = true;
client.Send(msg);

You would use the read.csv function; for example:

dat = read.csv("spam.csv", header = TRUE)

You can also reference this tutorial for more details.

Note: make sure the .csv file to read is in your working directory (using getwd()) or specify the right path to file. If you want, you can set the current directory using setwd.

"Case" can return single value only, but you can use complex type:

create type foo as (a int, b text);
select (case 1 when 1 then (1,'qq')::foo else (2,'ww')::foo end).*;

Response.Write("<script> try {this.submit();} catch(e){} </script>");

I would do this slightly different by applying both the UNPIVOT and the PIVOT functions to get the final result. The unpivot takes the values from both the totalcount and totalamount columns and places them into one column with multiple rows. You can then pivot on those results.:

select chardate,
  Australia_totalcount as [Australia # of Transactions], 
  Australia_totalamount as [Australia Total $ Amount],
  Austria_totalcount as [Austria # of Transactions], 
  Austria_totalamount as [Austria Total $ Amount]
from
(
  select 
    numericmonth, 
    chardate,
    country +'_'+col col, 
    value
  from
  (
    select numericmonth, 
      country, 
      chardate,
      cast(totalcount as numeric(10, 2)) totalcount,
      cast(totalamount as numeric(10, 2)) totalamount
    from mytransactions
  ) src
  unpivot
  (
    value
    for col in (totalcount, totalamount)
  ) unpiv
) s
pivot
(
  sum(value)
  for col in (Australia_totalcount, Australia_totalamount,
              Austria_totalcount, Austria_totalamount)
) piv
order by numericmonth

See SQL Fiddle with Demo.

If you have an unknown number of country names, then you can use dynamic SQL:

DECLARE @cols AS NVARCHAR(MAX),
    @colsName AS NVARCHAR(MAX),
    @query  AS NVARCHAR(MAX)

select @cols = STUFF((SELECT distinct ',' + QUOTENAME(country +'_'+c.col) 
                      from mytransactions
                      cross apply 
                      (
                        select 'TotalCount' col
                        union all
                        select 'TotalAmount'
                      ) c
            FOR XML PATH(''), TYPE
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,1,'')

select @colsName 
    = STUFF((SELECT distinct ', ' + QUOTENAME(country +'_'+c.col) 
               +' as ['
               + country + case when c.col = 'TotalCount' then ' # of Transactions]' else 'Total $ Amount]' end
             from mytransactions
             cross apply 
             (
                select 'TotalCount' col
                union all
                select 'TotalAmount'
             ) c
            FOR XML PATH(''), TYPE
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,1,'')

set @query 
  = 'SELECT chardate, ' + @colsName + ' 
     from 
     (
      select 
        numericmonth, 
        chardate,
        country +''_''+col col, 
        value
      from
      (
        select numericmonth, 
          country, 
          chardate,
          cast(totalcount as numeric(10, 2)) totalcount,
          cast(totalamount as numeric(10, 2)) totalamount
        from mytransactions
      ) src
      unpivot
      (
        value
        for col in (totalcount, totalamount)
      ) unpiv
     ) s
     pivot 
     (
       sum(value)
       for col in (' + @cols + ')
     ) p 
     order by numericmonth'

execute(@query)

See SQL Fiddle with Demo

Both give the result:

|             CHARDATE | AUSTRALIA # OF TRANSACTIONS | AUSTRALIA TOTAL $ AMOUNT | AUSTRIA # OF TRANSACTIONS | AUSTRIA TOTAL $ AMOUNT |
--------------------------------------------------------------------------------------------------------------------------------------
| Jul-12               |                          36 |                   699.96 |                        11 |                 257.82 |
| Aug-12               |                          44 |                  1368.71 |                         5 |                 126.55 |
| Sep-12               |                          52 |                  1161.33 |                         7 |                  92.11 |
| Oct-12               |                          50 |                  1099.84 |                        12 |                 103.56 |
| Nov-12               |                          38 |                  1078.94 |                        21 |                 377.68 |
| Dec-12               |                          63 |                  1668.23 |                         3 |                  14.35 |

in the latest version of android studio, you can just do:

./gradlew assembleRelease

or aR for short. This will produce an unsigned release apk. Building a signed apk can be done similarly or you can use Build -> Generate Signed Apk in Android Studio.

See the docs here

Here is my build.gradle for reference:

buildscript {
  repositories {
    mavenCentral()
  }
  dependencies {
    classpath 'com.android.tools.build:gradle:0.5.+'
  }
}
apply plugin: 'android'

dependencies {
  compile fileTree(dir: 'libs', include: '*.jar')
}

android {
compileSdkVersion 17
buildToolsVersion "17.0.0"

sourceSets {
    main {
        manifest.srcFile 'AndroidManifest.xml'
        java.srcDirs = ['src']
        resources.srcDirs = ['src']
        aidl.srcDirs = ['src']
        renderscript.srcDirs = ['src']
        res.srcDirs = ['res']
        assets.srcDirs = ['assets']
    }

    // Move the tests to tests/java, tests/res, etc...
    instrumentTest.setRoot('tests')

    // Move the build types to build-types/<type>
    // For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, ...
    // This moves them out of them default location under src/<type>/... which would
    // conflict with src/ being used by the main source set.
    // Adding new build types or product flavors should be accompanied
    // by a similar customization.
    debug.setRoot('build-types/debug')
    release.setRoot('build-types/release')

}

buildTypes {
    release {

    }
}

From GIT documentation: Git Docs

Below gives the full information. In short, simple will only push the current working branch and even then only if it also has the same name on the remote. This is a very good setting for beginners and will become the default in GIT 2.0

Whereas matching will push all branches locally that have the same name on the remote. (Without regard to your current working branch ). This means potentially many different branches will be pushed, including those that you might not even want to share.

In my personal usage, I generally use a different option: current which pushes the current working branch, (because I always branch for any changes). But for a beginner I'd suggest simple

push.default
Defines the action git push should take if no refspec is explicitly given. Different values are well-suited for specific workflows; for instance, in a purely central workflow (i.e. the fetch source is equal to the push destination), upstream is probably what you want. Possible values are:

nothing - do not push anything (error out) unless a refspec is explicitly given. This is primarily meant for people who want to avoid mistakes by always being explicit.

current - push the current branch to update a branch with the same name on the receiving end. Works in both central and non-central workflows.

upstream - push the current branch back to the branch whose changes are usually integrated into the current branch (which is called @{upstream}). This mode only makes sense if you are pushing to the same repository you would normally pull from (i.e. central workflow).

simple - in centralized workflow, work like upstream with an added safety to refuse to push if the upstream branch's name is different from the local one.

When pushing to a remote that is different from the remote you normally pull from, work as current. This is the safest option and is suited for beginners.

This mode will become the default in Git 2.0.

matching - push all branches having the same name on both ends. This makes the repository you are pushing to remember the set of branches that will be pushed out (e.g. if you always push maint and master there and no other branches, the repository you push to will have these two branches, and your local maint and master will be pushed there).

To use this mode effectively, you have to make sure all the branches you would push out are ready to be pushed out before running git push, as the whole point of this mode is to allow you to push all of the branches in one go. If you usually finish work on only one branch and push out the result, while other branches are unfinished, this mode is not for you. Also this mode is not suitable for pushing into a shared central repository, as other people may add new branches there, or update the tip of existing branches outside your control.

This is currently the default, but Git 2.0 will change the default to simple.

If you want access to a Docker container where there is a DB, you have to add a bash:

docker exec -it postgresql bash

postgresql is the container name.

Once inside, from the bash, access to DB e.g:

$psql -U postgres

image container

Scaling images using the above trick only works if the container the images are in changes size.

The #icons container uses px values for the width and height. px values don't scale when the browser is resized.

Solutions

Use one of the following approaches:

1. Define the width and/or height using % values.
2. Use a series of @media queries to set the width and height to different values based on the current screen size.

The only way I could do it in VS 2010 IDE was to highlight the block of code and hit ctrl-E and then C

Using new api fetch:

const dataToSend = JSON.stringify({"email": "[email protected]", "password": "101010"});
let dataReceived = ""; 
fetch("", {
    credentials: "same-origin",
    mode: "same-origin",
    method: "post",
    headers: { "Content-Type": "application/json" },
    body: dataToSend
})
    .then(resp => {
        if (resp.status === 200) {
            return resp.json()
        } else {
            console.log("Status: " + resp.status)
            return Promise.reject("server")
        }
    })
    .then(dataJson => {
        dataReceived = JSON.parse(dataJson)
    })
    .catch(err => {
        if (err === "server") return
        console.log(err)
    })

console.log(`Received: ${dataReceived}`)                

For more complex layouts I often used GridBagLayout, which is more complex, but that's the price. Today, I would probably check out MiGLayout.

This is straight from Bjarne Stroustrup's page:

If you so choose, you can still shoot yourself in the foot by inheriting constructors in a derived class in which you define new member variables needing initialization:

struct B1 {
    B1(int) { }
};

struct D1 : B1 {
    using B1::B1; // implicitly declares D1(int)
    int x;
};

void test()
{
    D1 d(6);    // Oops: d.x is not initialized
    D1 e;       // error: D1 has no default constructor
}

You can use ComboBox, then point your mouse to the upper arrow facing right, it will unfold a box called ComboBox Tasks and in there you can go ahead and edit your items or fill in the items / strings one per line. This should be the easiest.

This issue for me was caused by a database mapping error.

I attempted to use a select() call on a datasource with errors in the code behind. My controls were within an update panel and the actual cause was hidden.

Usually, if you can temporarily remove the update panel, asp.net will return a more useful error message.

You should add the g modifier so that sed performs a global substitution of the contents of the pattern buffer:

echo dog dog dos | sed -e 's:dog:log:g'

For a fantastic documentation on sed, check http://www.grymoire.com/Unix/Sed.html. This global flag is explained here: http://www.grymoire.com/Unix/Sed.html#uh-6

The official documentation for GNU sed is available at http://www.gnu.org/software/sed/manual/

You will most likely want to use the ftplib module for python

 import ftplib
 ftp = ftplib.FTP()
 host = "ftp.site.uk"
 port = 21
 ftp.connect(host, port)
 print (ftp.getwelcome())
 try:
      print ("Logging in...")
      ftp.login("yourusername", "yourpassword")
 except:
     "failed to login"

This logs you into an FTP server. What you do from there is up to you. Your question doesnt indicate any other operations that really need doing.

Assuming you are generating a shared library, most probably what happens is that the variant of liblog4cplus.a you are using wasn't compiled with -fPIC. In linux, you can confirm this by extracting the object files from the static library and checking their relocations:

ar -x liblog4cplus.a  
readelf --relocs fileappender.o | egrep '(GOT|PLT|JU?MP_SLOT)'

If the output is empty, then the static library is not position-independent and cannot be used to generate a shared object.

Since the static library contains object code which was already compiled, providing the -fPIC flag won't help.

You need to get ahold of a version of liblog4cplus.a compiled with -fPIC and use that one instead.

Instead of passing reference object passed the saved object, below is explanation which solve my issue:

//wrong
entityManager.persist(role);
user.setRole(role);
entityManager.persist(user)

//right
Role savedEntity= entityManager.persist(role);
user.setRole(savedEntity);
entityManager.persist(user)

You can do using OnClientClick of button.

OnClientClick="return confirm('confirm delete')"

There are some great answers already, but none of them address a complete list of what the __future__ statement currently supports.

Put simply, the __future__ statement forces Python interpreters to use newer features of the language.

The features that it currently supports are the following:

nested_scopes

Prior to Python 2.1, the following code would raise a NameError:

def f():
    ...
    def g(value):
        ...
        return g(value-1) + 1
    ...

The from __future__ import nested_scopes directive will allow for this feature to be enabled.

generators

Introduced generator functions such as the one below to save state between successive function calls:

def fib():
    a, b = 0, 1
    while 1:
       yield b
       a, b = b, a+b

division

Classic division is used in Python 2.x versions. Meaning that some division statements return a reasonable approximation of division ("true division") and others return the floor ("floor division"). Starting in Python 3.0, true division is specified by x/y, whereas floor division is specified by x//y.

The from __future__ import division directive forces the use of Python 3.0 style division.

absolute_import

Allows for parenthesis to enclose multiple import statements. For example:

from Tkinter import (Tk, Frame, Button, Entry, Canvas, Text,
    LEFT, DISABLED, NORMAL, RIDGE, END)

Instead of:

from Tkinter import Tk, Frame, Button, Entry, Canvas, Text, \
    LEFT, DISABLED, NORMAL, RIDGE, END

Or:

from Tkinter import Tk, Frame, Button, Entry, Canvas, Text
from Tkinter import LEFT, DISABLED, NORMAL, RIDGE, END

with_statement

Adds the statement with as a keyword in Python to eliminate the need for try/finally statements. Common uses of this are when doing file I/O such as:

with open('workfile', 'r') as f:
     read_data = f.read()

print_function:

Forces the use of Python 3 parenthesis-style print() function call instead of the print MESSAGE style statement.

unicode_literals

Introduces the literal syntax for the bytes object. Meaning that statements such as bytes('Hello world', 'ascii') can be simply expressed as b'Hello world'.

generator_stop

Replaces the use of the StopIteration exception used inside generator functions with the RuntimeError exception.

One other use not mentioned above is that the __future__ statement also requires the use of Python 2.1+ interpreters since using an older version will throw a runtime exception.

References

• https://docs.python.org/2/library/future.html
• https://docs.python.org/3/library/future.html
• https://docs.python.org/2.2/whatsnew/node9.html
• https://www.python.org/dev/peps/pep-0255/
• https://www.python.org/dev/peps/pep-0238/
• https://www.python.org/dev/peps/pep-0328/
• https://www.python.org/dev/peps/pep-3112/
• https://www.python.org/dev/peps/pep-0479/

You are really asking a couple of questions here:

1) Why does the price of SSL certificates vary so much

2) Where can I get good, cheap SSL certificates?

The first question is a good one. For example, the type of SSL certificate you buy is important. Many SSL certificates are domain verified only - that is, the company issuing the certificate only validate that you own the domain. They don't validate your identity, so people visiting your site might know that the domain has a SSL certificate, but that doesn't mean the person behing the website isn't a scammer or phisher, for example. This is why the Verisign solution is much more expensive - you are getting a cert that not only secures your site, but validates the identity of the owner of the site (well, that's the claim).

You can read more on this subject here

For your second question, I can personally recommend RapidSSL. I've bought several certificates from them in the past and they are, well, rapid. However, you should always do your research first. A company based in France might be better for you to deal with as you can get support in your local hours, etc.

In case you came to this question but related to newer Angular version >= 2.0.

<div [id]="element.id"></div>

Try C# 7.0

var Dob= DateTime.TryParseExact(s: YourDateString,format: "yyyyMMdd",provider: null,style: 0,out var dt)
 ? dt : DateTime.Parse("1800-01-01");

Does xxxxxxxxxxxx specify a file name or directory name on the target

(F = file, D = directory)? D

if a File : (echo F)
if a Directory (echo D)

I have tried most of the listed options here and found the following:

for windows 10: similar to @Shuge Lee answer;

from playsound import playsound
playsound('/path/file.mp3')

you need to run:

$ pip install playsound

for Mac: simply just try the following, which runs the os command,

import os
os.system("afplay file.mp3") 

You can use something like this :

SELECT
    Books.BookTitle,
    Books.Edition,
    Books.Year,
    Books.Pages,
    Books.Rating,
    Categories.Category,
    Publishers.Publisher,
    Writers.LastName
FROM Books
INNER JOIN Categories_Books ON Categories_Books._Books_ISBN = Books._ISBN
INNER JOIN Categories ON Categories._CategoryID = Categories_Books._Categories_Category_ID
INNER JOIN Publishers ON Publishers._Publisherid = Books.PublisherID
INNER JOIN Writers_Books ON Writers_Books._Books_ISBN = Books._ISBN
INNER JOIN Writers ON Writers.Writers_Books = _Writers_WriterID.

Yes, it should be a field. And I think this value is assigned when you create your array (you have to choose the length of array while creating, for example: int[] a = new int[5];).

In Ayman's example by returning false you prevent the browser window/tab from closing.

window.onunload = function () {
  alert('You are trying to leave.');
  return false;
}

since sql those all the lines you want it to do, I would do you're code like thise

Inside you Sql management too do execute query and this should work.

UPDATE  table
SET ID = 111111259 WHERE ID = 2555    

UPDATE  table
SET ID = 111111261 WHERE ID = 2724

UPDATE  table
SET ID = 111111263 WHERE ID = 2021

UPDATE  table
SET ID = 111111264 WHERE ID = 2017

You have to use Enum.Parse to get the object value from Enum, after that you have to change the object value to specific enum value. Casting to enum value can be do by using Convert.ChangeType. Please have a look on following code snippet

public T ConvertStringValueToEnum<T>(string valueToParse){
    return Convert.ChangeType(Enum.Parse(typeof(T), valueToParse, true), typeof(T));
}

http://www.math.sjsu.edu/~foster/dictionary.txt

350,000 words

Very late, but might be useful for others.

//in aspx page

<asp:TextBox ID="password" runat="server" TextMode="Password" />

//in MVC cshtml

@Html.Password("password", "", new { id = "password", Textmode = "Password" })

if (capital.touched && capital != undefined && capital.length < 1 ) { 
//capital does exists
}

I have searched the web for an answer regarding MAC OS, so .. the solution is

cd /Applications/VirtualBox.app/Contents/Resources/VirtualBoxVM.app/Contents/MacOS/

VBoxManage internalcommands sethduuid "full/path/to/vdi"

A simple way to check if an element exist can be done through one-line code of jQuery.

Here is the code below:

if ($('#elementId').length > 0) {
    // Do stuff here if the element exists
} else {
    // Do stuff here if the element does not exist
}

with open('document.csv','a') as fd:
    fd.write(myCsvRow)

Opening a file with the 'a' parameter allows you to append to the end of the file instead of simply overwriting the existing content. Try that.