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

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

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

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

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

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

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

Unless you need to be able to change the deleter at runtime, I would strongly recommend using a custom deleter type. For example, if use a function pointer for your deleter, sizeof(unique_ptr<T, fptr>) == 2 * sizeof(T*). In other words, half of the bytes of the unique_ptr object are wasted.

Writing a custom deleter to wrap every function is a bother, though. Thankfully, we can write a type templated on the function:

Since C++17:

template <auto fn>
using deleter_from_fn = std::integral_constant<decltype(fn), fn>;

template <typename T, auto fn>
using my_unique_ptr = std::unique_ptr<T, deleter_from_fn<fn>>;

// usage:
my_unique_ptr<Bar, destroy> p{create()};

Prior to C++17:

template <typename D, D fn>
using deleter_from_fn = std::integral_constant<D, fn>;

template <typename T, typename D, D fn>
using my_unique_ptr = std::unique_ptr<T, deleter_from_fn<D, fn>>;

// usage:
my_unique_ptr<Bar, decltype(destroy), destroy> p{create()};

I would like to mention one case where you must use std::move() otherwise it will give an error. Case: If the return type of the function differs from the type of the local variable.

class Base { ... };
class Derived : public Base { ... };
...
std::unique_ptr<Base> Foo() {
     std::unique_ptr<Derived> derived(new Derived());
     return std::move(derived); //std::move() must
}

Reference: https://www.chromium.org/developers/smart-pointer-guidelines

• You need your structure to contain just a pointer for binary-compatibility reasons.
• You need to interface with an API that returns memory allocated with new[]
• Your firm or project has a general rule against using std::vector, for example, to prevent careless programmers from accidentally introducing copies
• You want to prevent careless programmers from accidentally introducing copies in this instance.

There is a general rule that C++ containers are to be preferred over rolling-your-own with pointers. It is a general rule; it has exceptions. There's more; these are just examples.

std::unique_ptr has no copy constructor. You create an instance and then ask the std::vector to copy that instance during initialisation.

error: deleted function 'std::unique_ptr<_Tp, _Tp_Deleter>::uniqu
e_ptr(const std::unique_ptr<_Tp, _Tp_Deleter>&) [with _Tp = int, _Tp_D
eleter = std::default_delete<int>, std::unique_ptr<_Tp, _Tp_Deleter> =
 std::unique_ptr<int>]'

The class satisfies the requirements of MoveConstructible and MoveAssignable, but not the requirements of either CopyConstructible or CopyAssignable.

The following works with the new emplace calls.

std::vector< std::unique_ptr< int > > vec;
vec.emplace_back( new int( 1984 ) );

See using unique_ptr with standard library containers for further reading.

unique_ptr is the light-weight smart pointer of choice if you just have a dynamic object somewhere for which one consumer has sole (hence "unique") responsibility -- maybe a wrapper class that needs to maintain some dynamically allocated object. unique_ptr has very little overhead. It is not copyable, but movable. Its type is template <typename D, typename Deleter> class unique_ptr;, so it depends on two template parameters.

unique_ptr is also what auto_ptr wanted to be in the old C++ but couldn't because of that language's limitations.

shared_ptr on the other hand is a very different animal. The obvious difference is that you can have many consumers sharing responsibility for a dynamic object (hence "shared"), and the object will only be destroyed when all shared pointers have gone away. Additionally you can have observing weak pointers which will intelligently be informed if the shared pointer they're following has disappeared.

Internally, shared_ptr has a lot more going on: There is a reference count, which is updated atomically to allow the use in concurrent code. Also, there's plenty of allocation going on, one for an internal bookkeeping "reference control block", and another (often) for the actual member object.

But there's another big difference: The shared pointers type is always template <typename T> class shared_ptr;, and this is despite the fact that you can initialize it with custom deleters and with custom allocators. The deleter and allocator are tracked using type erasure and virtual function dispatch, which adds to the internal weight of the class, but has the enormous advantage that different sorts of shared pointers of type T are all compatible, no matter the deletion and allocation details. Thus they truly express the concept of "shared responsibility for T" without burdening the consumer with the details!

Both shared_ptr and unique_ptr are designed to be passed by value (with the obvious movability requirement for the unique pointer). Neither should make you worried about the overhead, since their power is truly astounding, but if you have a choice, prefer unique_ptr, and only use shared_ptr if you really need shared responsibility.

If you are stuck with c++11, you can get make_unique from abseil-cpp, an open source collection of C++ libraries drawn from Google’s internal codebase.

From cppreference, one of the std::unique_ptr constructors is

explicit unique_ptr( pointer p ) noexcept;

So to create a new std::unique_ptr is to pass a pointer to its constructor.

unique_ptr<int> uptr (new int(3));

Or it is the same as

int *int_ptr = new int(3);
std::unique_ptr<int> uptr (int_ptr);

The different is you don't have to clean up after using it. If you don't use std::unique_ptr (smart pointer), you will have to delete it like this

delete int_ptr;

when you no longer need it or it will cause a memory leak.

You can use exec() to run a command line script (such as command line php), and if you pipe the output to a file then your script won't wait for the command to finish.

I can't quite remember the php CLI syntax, but you'd want something like:

exec("/path/to/php -f '/path/to/file.php' | '/path/to/output.txt'");

I think quite a few shared hosting servers have exec() disabled by default for security reasons, but might be worth a try.

I just want to point out, even syntax of itemgetter looks really neat, but it's kinda slow when perform on large list.

import timeit
from operator import itemgetter
start=timeit.default_timer()
for i in range(1000000):
    itemgetter(0,2,3)(myList)
print ("Itemgetter took ", (timeit.default_timer()-start))

Itemgetter took 1.065209062149279

start=timeit.default_timer()
for i in range(1000000):
    myList[0],myList[2],myList[3]
print ("Multiple slice took ", (timeit.default_timer()-start))

Multiple slice took 0.6225321444745759

Goal:

My goal was to make a CUDA enabled docker image without using nvidia/cuda as base image. Because I have some custom jupyter image, and I want to base from that.

Prerequisite:

The host machine had nvidia driver, CUDA toolkit, and nvidia-container-toolkit already installed. Please refer to the official docs, and to Rohit's answer.

Test that nvidia driver and CUDA toolkit is installed correctly with: nvidia-smi on the host machine, which should display correct "Driver Version" and "CUDA Version" and shows GPUs info.

Test that nvidia-container-toolkit is installed correctly with: docker run --rm --gpus all nvidia/cuda:latest nvidia-smi

Dockerfile

I found what I assume to be the official Dockerfile for nvidia/cuda here I "flattened" it, appended the contents to my Dockerfile and tested it to be working nicely:

FROM sidazhou/scipy-notebook:latest
# FROM ubuntu:18.04 

###########################################################################
# See https://gitlab.com/nvidia/container-images/cuda/-/blob/master/dist/10.1/ubuntu18.04-x86_64/base/Dockerfile
# See https://sarus.readthedocs.io/en/stable/user/custom-cuda-images.html
###########################################################################
USER root

###########################################################################
# base
RUN apt-get update && apt-get install -y --no-install-recommends \
    gnupg2 curl ca-certificates && \
    curl -fsSL https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/7fa2af80.pub | apt-key add - && \
    echo "deb https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64 /" > /etc/apt/sources.list.d/cuda.list && \
    echo "deb https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64 /" > /etc/apt/sources.list.d/nvidia-ml.list && \
    apt-get purge --autoremove -y curl \
    && rm -rf /var/lib/apt/lists/*

ENV CUDA_VERSION 10.1.243
ENV CUDA_PKG_VERSION 10-1=$CUDA_VERSION-1

# For libraries in the cuda-compat-* package: https://docs.nvidia.com/cuda/eula/index.html#attachment-a
RUN apt-get update && apt-get install -y --no-install-recommends \
    cuda-cudart-$CUDA_PKG_VERSION \
    cuda-compat-10-1 \
    && ln -s cuda-10.1 /usr/local/cuda && \
    rm -rf /var/lib/apt/lists/*

# Required for nvidia-docker v1
RUN echo "/usr/local/nvidia/lib" >> /etc/ld.so.conf.d/nvidia.conf && \
    echo "/usr/local/nvidia/lib64" >> /etc/ld.so.conf.d/nvidia.conf

ENV PATH /usr/local/nvidia/bin:/usr/local/cuda/bin:${PATH}
ENV LD_LIBRARY_PATH /usr/local/nvidia/lib:/usr/local/nvidia/lib64


###########################################################################
#runtime next
ENV NCCL_VERSION 2.7.8

RUN apt-get update && apt-get install -y --no-install-recommends \
    cuda-libraries-$CUDA_PKG_VERSION \
    cuda-npp-$CUDA_PKG_VERSION \
    cuda-nvtx-$CUDA_PKG_VERSION \
    libcublas10=10.2.1.243-1 \
    libnccl2=$NCCL_VERSION-1+cuda10.1 \
    && apt-mark hold libnccl2 \
    && rm -rf /var/lib/apt/lists/*

# apt from auto upgrading the cublas package. See https://gitlab.com/nvidia/container-images/cuda/-/issues/88
RUN apt-mark hold libcublas10


###########################################################################
#cudnn7 (not cudnn8) next

ENV CUDNN_VERSION 7.6.5.32

RUN apt-get update && apt-get install -y --no-install-recommends \
    libcudnn7=$CUDNN_VERSION-1+cuda10.1 \
    && apt-mark hold libcudnn7 && \
    rm -rf /var/lib/apt/lists/*


ENV NVIDIA_VISIBLE_DEVICES all
ENV NVIDIA_DRIVER_CAPABILITIES all
ENV NVIDIA_REQUIRE_CUDA "cuda>=10.1"


###########################################################################
#docker build -t sidazhou/scipy-notebook-gpu:latest .

#docker run -itd -gpus all\
#  -p 8888:8888 \
#  -p 6006:6006 \
#  --user root \
#  -e NB_UID=$(id -u) \
#  -e NB_GID=$(id -g) \
#  -e GRANT_SUDO=yes \
#  -v ~/workspace:/home/jovyan/work \
#  --name sidazhou-jupyter-gpu \
#  sidazhou/scipy-notebook-gpu:latest

#docker exec sidazhou-jupyter-gpu python -c "import tensorflow as tf; print(tf.config.experimental.list_physical_devices('GPU'))"

var req ;

// Browser compatibility check          
if (window.XMLHttpRequest) {
   req = new XMLHttpRequest();
    } else if (window.ActiveXObject) {

 try {
   req = new ActiveXObject("Msxml2.XMLHTTP");
 } catch (e) {

   try {
     req = new ActiveXObject("Microsoft.XMLHTTP");
   } catch (e) {}
 }

}


var req = new XMLHttpRequest();
req.open("GET", "test.html",true);
req.onreadystatechange = function () {
    //document.getElementById('divTxt').innerHTML = "Contents : " + req.responseText;
}

req.send(null);

I got the solution

download Xuggler 5.4 here

and some more jar to make it work...

commons-cli-1.1.jar

commons-lang-2.1.jar

logback-classic-1.0.0.jar

logback-core-1.0.0.jar

slf4j-api-1.6.4.jar

You can check which dependencies xuggler needs from here:

Add this jars and xuggle-xuggler-5.4.jar to your project's build path and it s ready.

**version numbers may change

I have simply pasted the following to the top of my bash scripts:

#!/usr/bin/env bash -e

declare script=$(basename "$0")
declare dirname=$(dirname "$0")
declare scriptDir
if [[ $(uname) == 'Linux' ]];then
    # use readlink -f
    scriptDir=$(readlink -f "$dirname")
else
    # can't use readlink -f, do a pwd -P in the script directory and then switch back
    if [[ "$dirname" = '.' ]];then
        # don't change directory, we are already inside
        scriptDir=$(pwd -P)
    else
        # switch to the directory and then switch back
        pwd=$(pwd)
        cd "$dirname"
        scriptDir=$(pwd -P)
        cd "$pwd"
    fi
fi

And removed all instances of readlink -f. $scriptDir and $script then will be available for the rest of the script.

While this does not follow all symlinks, it works on all systems and appears to be good enough for most use cases, it switches the directory into the containing folder, and then it does a pwd -P to get the real path of that directory, and then finally switch back to the original.

Curiously on Python 3, I see filter performing faster than list comprehensions.

I always thought that the list comprehensions would be more performant. Something like: [name for name in brand_names_db if name is not None] The bytecode generated is a bit better.

>>> def f1(seq):
...     return list(filter(None, seq))
>>> def f2(seq):
...     return [i for i in seq if i is not None]
>>> disassemble(f1.__code__)
2         0 LOAD_GLOBAL              0 (list)
          2 LOAD_GLOBAL              1 (filter)
          4 LOAD_CONST               0 (None)
          6 LOAD_FAST                0 (seq)
          8 CALL_FUNCTION            2
         10 CALL_FUNCTION            1
         12 RETURN_VALUE
>>> disassemble(f2.__code__)
2           0 LOAD_CONST               1 (<code object <listcomp> at 0x10cfcaa50, file "<stdin>", line 2>)
          2 LOAD_CONST               2 ('f2.<locals>.<listcomp>')
          4 MAKE_FUNCTION            0
          6 LOAD_FAST                0 (seq)
          8 GET_ITER
         10 CALL_FUNCTION            1
         12 RETURN_VALUE

But they are actually slower:

   >>> timeit(stmt="f1(range(1000))", setup="from __main__ import f1,f2")
   21.177661532000116
   >>> timeit(stmt="f2(range(1000))", setup="from __main__ import f1,f2")
   42.233950221000214

Probably because it just didn't make much sense for list semantics. However, you can easily create your own by subclassing.

class safelist(list):
    def get(self, index, default=None):
        try:
            return self.__getitem__(index)
        except IndexError:
            return default

def _test():
    l = safelist(range(10))
    print l.get(20, "oops")

if __name__ == "__main__":
    _test()

Just a wild guess: (not much to go on) but I have had similar problems when, for example, I was using the IIS rewrite module on my local machine (and it worked fine), but when I uploaded to a host that did not have that add-on module installed, I would get a 500 error with very little to go on - sounds similar. It drove me crazy trying to find it.

So make sure whatever options/addons that you might have and be using locally in IIS are also installed on the host.

Similarly, make sure you understand everything that is being referenced/used in your web.config - that is likely the problem area.

If you have this problem in Windows 10, and you know you have premisions on folder (You could write before but it just started to print exception PermissionError recently).. You will need to install Windows updates... I hope someone will help this info.

It's a custom html attribute but probably in this case is used by the Facebook React JS Library.

Take a look: http://facebook.github.io/react/

The minimum width that your screen can display is 1 pixel. So its impossible to display less then 1px. 1 pixels can only have 1 color and cannot be split up.

I'm using the J.S. to fix a sidebar menu. I've tried a lot of solutions with CSS but it's the simplest way to solve it, just add J.S. adding and removing a native BootStrap class: "position-fixed".

The J.S.:

var lateral = false;
function fixar() {

            var element, name, arr;
            element = document.getElementById("minhasidebar");

            if (lateral) {
                element.className = element.className.replace(
                        /\bposition-fixed\b/g, "");
                lateral = false;
            } else {

                name = "position-fixed";
                arr = element.className.split(" ");
                if (arr.indexOf(name) == -1) {
                    element.className += " " + name;
                }
                lateral = true;
            }

        }

The HTML:

Sidebar:

<aside>
        <nav class="sidebar ">
             <div id="minhasidebar">
                 <ul class="nav nav-pills">
                     <li class="nav-item"><a class="nav-link active" 
                     th:href="@{/hoje/inicial}"> <i class="oi oi-clipboard"></i> 
                     <span>Hoje</span>
                     </a></li>
                 </ul>
             </div>
        </nav>            
</aside>

I've had some success, although it relies on a few properties to work:

table-layout: fixed border-collapse: separate

and cell 'widths' that divide/span easily, i.e. 4 x cells of 25% width:

.div-table-cell,_x000D_
* {_x000D_
  box-sizing: border-box;_x000D_
}_x000D_
_x000D_
.div-table {_x000D_
  display: table;_x000D_
  border: solid 1px #ccc;_x000D_
  border-left: none;_x000D_
  border-bottom: none;_x000D_
  table-layout: fixed;_x000D_
  margin: 10px auto;_x000D_
  width: 50%;_x000D_
  border-collapse: separate;_x000D_
  background: #eee;_x000D_
}_x000D_
_x000D_
.div-table-row {_x000D_
  display: table-row;_x000D_
}_x000D_
_x000D_
.div-table-cell {_x000D_
  display: table-cell;_x000D_
  padding: 15px;_x000D_
  border-left: solid 1px #ccc;_x000D_
  border-bottom: solid 1px #ccc;_x000D_
  text-align: center;_x000D_
  background: #ddd;_x000D_
}_x000D_
_x000D_
.colspan-3 {_x000D_
  width: 300%;_x000D_
  display: table;_x000D_
  background: #eee;_x000D_
}_x000D_
_x000D_
.row-1 .div-table-cell:before {_x000D_
  content: "row 1: ";_x000D_
}_x000D_
_x000D_
.row-2 .div-table-cell:before {_x000D_
  content: "row 2: ";_x000D_
}_x000D_
_x000D_
.row-3 .div-table-cell:before {_x000D_
  content: "row 3: ";_x000D_
  font-weight: bold;_x000D_
}_x000D_
_x000D_
.div-table-row-at-the-top {_x000D_
  display: table-header-group;_x000D_
}

<div class="div-table">_x000D_
_x000D_
  <div class="div-table-row row-1">_x000D_
_x000D_
    <div class="div-table-cell">Cell 1</div>_x000D_
    <div class="div-table-cell">Cell 2</div>_x000D_
    <div class="div-table-cell">Cell 3</div>_x000D_
_x000D_
  </div>_x000D_
_x000D_
  <div class="div-table-row row-2">_x000D_
_x000D_
    <div class="div-table-cell colspan-3">_x000D_
      Cor blimey he's only gone and done it._x000D_
    </div>_x000D_
_x000D_
  </div>_x000D_
_x000D_
  <div class="div-table-row row-3">_x000D_
_x000D_
    <div class="div-table-cell">Cell 1</div>_x000D_
    <div class="div-table-cell">Cell 2</div>_x000D_
    <div class="div-table-cell">Cell 3</div>_x000D_
_x000D_
  </div>_x000D_
_x000D_
</div>

https://jsfiddle.net/sfjw26rb/2/

Also, applying display:table-header-group or table-footer-group is a handy way of jumping 'row' elements to the top/bottom of the 'table'.

Handling the input event is a consistent solution: it is supported for textarea and input elements in all contemporary browsers and it fires exactly when you need it:

function edValueKeyPress() {
    var edValue = document.getElementById("edValue");
    var s = edValue.value;

    var lblValue = document.getElementById("lblValue");
    lblValue.innerText = "The text box contains: " + s;
}

<input id="edValue" type="text" onInput="edValueKeyPress()"><br>
<span id="lblValue">The text box contains: </span>

I'd rewrite this a bit, though:

function showCurrentValue(event)
{
    const value = event.target.value;
    document.getElementById("label").innerText = value;
}

<input type="text" onInput="showCurrentValue(event)"><br>
The text box contains: <span id="label"></span>

package javaexception;


public class JavaException {
   void show() throws Exception
    {
        throw new Exception("my.own.Exception");
    }

void show2() throws Exception  // Why throws is necessary here ?
{
    show();
}

void show3() throws Exception  // Why throws is necessary here ?
{
    show2();
}
public static void main(String[] args) {

   JavaException a = new JavaException();

   try{
   a.show3();
   }catch(Exception e){
       System.out.println(e.getMessage());
   }
}

Only small changes in your program. What It seems to be misunderstood by many regarding the main issue, is whenever you throw exception you need to handle it, not necessary in the same place ( ex. show1,2,3 method in your program) but you must at first caller method inside the 'main'. in one word, there is 'throw', there must be 'catch/try', even if not same method where exception happens.

In version 0.62.2 of React Native, i just put "flex-shrink: 1" in Container of my "Text", but remember the flex-direction:row in View of container. Thank you guys for the help.

My code:

export const Product = styled.View`
  background: #fff;
  padding: 15px 10px;
  border-radius: 5px;
  margin: 5px;
  flex-direction: row;
`;

export const ProductTitleContainer = styled.View`
  font-size: 16px;
  margin-left: 5px;
  flex-shrink: 1;
`;

export const ProductTitle = styled.Text`
  font-size: 16px;
  flex-wrap: wrap;
`;
`;

If you're familiar with jQuery selector, you can use ScarletsQuery for PHP

<pre><?php
include "ScarletsQuery.php";

// Load the HTML content and parse it
$html = file_get_contents('https://www.lipsum.com');
$dom = Scarlets\Library\MarkupLanguage::parseText($html);

// Select meta tag on the HTML header
$description = $dom->selector('head meta[name="description"]')[0];

// Get 'content' attribute value from meta tag
print_r($description->attr('content'));

$description = $dom->selector('#Content p');

// Get element array
print_r($description->view);

This library usually taking less than 1 second to process offline html.
It also accept invalid HTML or missing quote on tag attributes.

to make it work add soft reference to /usr/bin:

ln -s $(which node) /usr/bin/node

ln -s $(which npm) /usr/bin/npm

For me / had to be in a new line.

For example

create type emp_t;/

didn't work

but

create type emp_t;

/

worked.

var top = ($(".apps_intro_wrapper_inner").offset() || { "top": NaN }).top;   
if (!isNaN(top)) {
$("#app_scroler").click(function () {   
$('html, body').animate({
            scrollTop: top
        }, 100);
    });
}

if you want to scroll a little above or below from specific div that add value to the top like this.....like I add 800

var top = ($(".apps_intro_wrapper_inner").offset() || { "top": NaN }).top + 800;

This can be done with MySQL, although it's highly unintuitive:

CREATE PROCEDURE p25 (OUT return_val INT)
BEGIN
  DECLARE a,b INT;
  DECLARE cur_1 CURSOR FOR SELECT s1 FROM t;
  DECLARE CONTINUE HANDLER FOR NOT FOUND
  SET b = 1;
  OPEN cur_1;
  REPEAT
    FETCH cur_1 INTO a;
    UNTIL b = 1
  END REPEAT;
  CLOSE cur_1;
  SET return_val = a;
END;//

Check out this guide: mysql-storedprocedures.pdf

You have to start the gallery intent for a result.

Intent i = new Intent(Intent.ACTION_PICK,
               android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, ACTIVITY_SELECT_IMAGE); 

Then in onActivityForResult, call intent.getData() to get the Uri of the Image. Then you need to get the Image from the ContentProvider.

You do not need to throw a checked exception. This is a bug within the control of the program, so you want to throw an unchecked exception. Use one of the unchecked exceptions already provided by the Java language, such as IllegalArgumentException, IllegalStateException or NullPointerException.

You may also want to get rid of the setter. You've already provided a way to initiate age through the constructor. Does it need to be updated once instantiated? If not, skip the setter. A good rule, do not make things more public than necessary. Start with private or default, and secure your data with final. Now everyone knows that Person has been constructed properly, and is immutable. It can be used with confidence.

Most likely this is what you really need:

class Person { 

  private final int age;   

  Person(int age) {    

    if (age < 0) 
       throw new IllegalArgumentException("age less than zero: " + age); 

    this.age = age;   
  }

  // setter removed

SELECT * FROM table WHERE field1 NOT LIKE '%$x%'; (Make sure you escape $x properly beforehand to avoid SQL injection)

Edit: NOT IN does something a bit different - your question isn't totally clear so pick which one to use. LIKE 'xxx%' can use an index. LIKE '%xxx' or LIKE '%xxx%' can't.

Real life example; find all but not current user:

var players = Players.find({ my_x: player.my_x,  my_y: player.my_y, userId: {$ne: Meteor.userId()} }); 

Really surprised nobody has mentioned gopkg.in.

gopkg.in is a service that provides a wrapper (redirect) that lets you express versions as repo urls, without actually creating repos. E.g. gopkg.in/yaml.v1 vs gopkg.in/yaml.v2, even though they both live at https://github.com/go-yaml/yaml

• gopkg.in/yaml.v1 redirects to https://github.com/go-yaml/yaml/tree/v1
• gopkg.in/yaml.v2 redirects to https://github.com/go-yaml/yaml/tree/v2

This isn't perfect if the author is not following proper versioning practices (by incrementing the version number when breaking backwards compatibility), but it does work with branches and tags.

The result is correct based on the SQL statement. Left join returns all values from the right table, and only matching values from the left table.

ID and NAME columns are from the right side table, so are returned.

Score is from the left table, and 30 is returned, as this value relates to Name "Flow". The other Names are NULL as they do not relate to Name "Flow".

The below would return the result you were expecting:

    SELECT  a.*, b.Score
FROM    @Table1 a
    LEFT JOIN @Table2 b
       ON a.ID = b.T1_ID 
WHERE 1=1
AND a.Name = 'Flow'

The SQL applies a filter on the right hand table.

Or use box-shadow if table have collapse

think you're making a mistake. Take a look at this: http://golang.org/pkg/container/heap/ Building a heap isn'y O(n). However, inserting is O(lg(n). I'm assuming initialization is O(n) if you set a heap size b/c the heap needs to allocate space and set up the data structure. If you have n items to put into the heap then yes, each insert is lg(n) and there are n items, so you get n*lg(n) as u stated

Try deleting your .gradle from C:\Users\<username> directory and try again.

If you don't mind executing other's code, here's mine:

Note: There is lot of extra code you may want to remove [added for better clarificaiton and demonstration how it works]

Note: Python naming conventions were used for method names and variable names instead of camelCase.

Working procedure:

1. MultiThread class will initiate with no of instances of threads by sharing lock, work queue, exit flag and results.
2. SingleThread will be started by MultiThread once it creates all instances.
3. We can add works using MultiThread (It will take care of locking).
4. SingleThreads will process work queue using a lock in middle.
5. Once your work is done, you can destroy all threads with shared boolean value.
6. Here, work can be anything. It can automatically import (uncomment import line) and process module using given arguments.
7. Results will be added to results and we can get using get_results

Code:

import threading
import queue


class SingleThread(threading.Thread):
    def __init__(self, name, work_queue, lock, exit_flag, results):
        threading.Thread.__init__(self)
        self.name = name
        self.work_queue = work_queue
        self.lock = lock
        self.exit_flag = exit_flag
        self.results = results

    def run(self):
        # print("Coming %s with parameters %s", self.name, self.exit_flag)
        while not self.exit_flag:
            # print(self.exit_flag)
            self.lock.acquire()
            if not self.work_queue.empty():
                work = self.work_queue.get()
                module, operation, args, kwargs = work.module, work.operation, work.args, work.kwargs
                self.lock.release()
                print("Processing : " + operation + " with parameters " + str(args) + " and " + str(kwargs) + " by " + self.name + "\n")
                # module = __import__(module_name)
                result = str(getattr(module, operation)(*args, **kwargs))
                print("Result : " + result + " for operation " + operation + " and input " + str(args) + " " + str(kwargs))
                self.results.append(result)
            else:
                self.lock.release()
        # process_work_queue(self.work_queue)

class MultiThread:
    def __init__(self, no_of_threads):
        self.exit_flag = bool_instance()
        self.queue_lock = threading.Lock()
        self.threads = []
        self.work_queue = queue.Queue()
        self.results = []
        for index in range(0, no_of_threads):
            thread = SingleThread("Thread" + str(index+1), self.work_queue, self.queue_lock, self.exit_flag, self.results)
            thread.start()
            self.threads.append(thread)

    def add_work(self, work):
        self.queue_lock.acquire()
        self.work_queue._put(work)
        self.queue_lock.release()

    def destroy(self):
        self.exit_flag.value = True
        for thread in self.threads:
            thread.join()

    def get_results(self):
        return self.results


class Work:
    def __init__(self, module, operation, args, kwargs={}):
        self.module = module
        self.operation = operation
        self.args = args
        self.kwargs = kwargs


class SimpleOperations:
    def sum(self, *args):
        return sum([int(arg) for arg in args])

    @staticmethod
    def mul(a, b, c=0):
        return int(a) * int(b) + int(c)


class bool_instance:
    def __init__(self, value=False):
        self.value = value

    def __setattr__(self, key, value):
        if key != "value":
            raise AttributeError("Only value can be set!")
        if not isinstance(value, bool):
            raise AttributeError("Only True/False can be set!")
        self.__dict__[key] = value
        # super.__setattr__(key, bool(value))

    def __bool__(self):
        return self.value

if __name__ == "__main__":
    multi_thread = MultiThread(5)
    multi_thread.add_work(Work(SimpleOperations(), "mul", [2, 3], {"c":4}))
    while True:
        data_input = input()
        if data_input == "":
            pass
        elif data_input == "break":
            break
        else:
            work = data_input.split()
            multi_thread.add_work(Work(SimpleOperations(), work[0], work[1:], {}))
    multi_thread.destroy()
    print(multi_thread.get_results())

Here's what finally worked for me. You'll have to convert the code to suit your own needs, but this will do it.

$fname = filter_input(INPUT_POST, "name");
$img = filter_input(INPUT_POST, "image");
$img = str_replace('data:image/png;base64,', '', $img);
$img = str_replace(' ', '+', $img);
$img = base64_decode($img);

file_put_contents($fname, $img);

print "Image has been saved!";

If you don't require support for IE6:

h1 {margin-bottom:20px;}
div + div {margin-top:10px;}

The second line adds spacing between divs, but will not add any before the first div or after the last one.

Normally when an optimization algorithm does not converge, it is usually because the problem is not well-conditioned, perhaps due to a poor scaling of the decision variables. There are a few things you can try.

1. Normalize your training data so that the problem hopefully becomes more well conditioned, which in turn can speed up convergence. One possibility is to scale your data to 0 mean, unit standard deviation using Scikit-Learn's StandardScaler for an example. Note that you have to apply the StandardScaler fitted on the training data to the test data.
2. Related to 1), make sure the other arguments such as regularization weight, C, is set appropriately.
3. Set max_iter to a larger value. The default is 1000.
4. Set dual = True if number of features > number of examples and vice versa. This solves the SVM optimization problem using the dual formulation. Thanks @Nino van Hooff for pointing this out, and @JamesKo for spotting my mistake.
5. Use a different solver, for e.g., the L-BFGS solver if you are using Logistic Regression. See @5ervant's answer.

Note: One should not ignore this warning.

This warning came about because

1. Solving the linear SVM is just solving a quadratic optimization problem. The solver is typically an iterative algorithm that keeps a running estimate of the solution (i.e., the weight and bias for the SVM). It stops running when the solution corresponds to an objective value that is optimal for this convex optimization problem, or when it hits the maximum number of iterations set.

2. If the algorithm does not converge, then the current estimate of the SVM's parameters are not guaranteed to be any good, hence the predictions can also be complete garbage.

Edit

In addition, consider the comment by @Nino van Hooff and @5ervant to use the dual formulation of the SVM. This is especially important if the number of features you have, D, is more than the number of training examples N. This is what the dual formulation of the SVM is particular designed for and helps with the conditioning of the optimization problem. Credit to @5ervant for noticing and pointing this out.

Furthermore, @5ervant also pointed out the possibility of changing the solver, in particular the use of the L-BFGS solver. Credit to him (i.e., upvote his answer, not mine).

I would like to provide a quick rough explanation for those who are interested (I am :)) why this matters in this case. Second-order methods, and in particular approximate second-order method like the L-BFGS solver, will help with ill-conditioned problems because it is approximating the Hessian at each iteration and using it to scale the gradient direction. This allows it to get better convergence rate but possibly at a higher compute cost per iteration. That is, it takes fewer iterations to finish but each iteration will be slower than a typical first-order method like gradient-descent or its variants.

For e.g., a typical first-order method might update the solution at each iteration like

x(k + 1) = x(k) - alpha(k) * gradient(f(x(k)))

where alpha(k), the step size at iteration k, depends on the particular choice of algorithm or learning rate schedule.

A second order method, for e.g., Newton, will have an update equation

x(k + 1) = x(k) - alpha(k) * Hessian(x(k))^(-1) * gradient(f(x(k)))

That is, it uses the information of the local curvature encoded in the Hessian to scale the gradient accordingly. If the problem is ill-conditioned, the gradient will be pointing in less than ideal directions and the inverse Hessian scaling will help correct this.

In particular, L-BFGS mentioned in @5ervant's answer is a way to approximate the inverse of the Hessian as computing it can be an expensive operation.

However, second-order methods might converge much faster (i.e., requires fewer iterations) than first-order methods like the usual gradient-descent based solvers, which as you guys know by now sometimes fail to even converge. This can compensate for the time spent at each iteration.

In summary, if you have a well-conditioned problem, or if you can make it well-conditioned through other means such as using regularization and/or feature scaling and/or making sure you have more examples than features, you probably don't have to use a second-order method. But these days with many models optimizing non-convex problems (e.g., those in DL models), second order methods such as L-BFGS methods plays a different role there and there are evidence to suggest they can sometimes find better solutions compared to first-order methods. But that is another story.

Just for completeness: Xlib - But it's somewhat slow when capturing the whole screen:

from Xlib import display, X
import Image #PIL

W,H = 200,200
dsp = display.Display()
try:
    root = dsp.screen().root
    raw = root.get_image(0, 0, W,H, X.ZPixmap, 0xffffffff)
    image = Image.fromstring("RGB", (W, H), raw.data, "raw", "BGRX")
    image.show()
finally:
    dsp.close()

One could try to trow some types in the bottleneck-files in PyXlib, and then compile it using Cython. That could increase the speed a bit.

Edit: We can write the core of the function in C, and then use it in python from ctypes, here is something I hacked together:

#include <stdio.h>
#include <X11/X.h>
#include <X11/Xlib.h>
//Compile hint: gcc -shared -O3 -lX11 -fPIC -Wl,-soname,prtscn -o prtscn.so prtscn.c

void getScreen(const int, const int, const int, const int, unsigned char *);
void getScreen(const int xx,const int yy,const int W, const int H, /*out*/ unsigned char * data) 
{
   Display *display = XOpenDisplay(NULL);
   Window root = DefaultRootWindow(display);

   XImage *image = XGetImage(display,root, xx,yy, W,H, AllPlanes, ZPixmap);

   unsigned long red_mask   = image->red_mask;
   unsigned long green_mask = image->green_mask;
   unsigned long blue_mask  = image->blue_mask;
   int x, y;
   int ii = 0;
   for (y = 0; y < H; y++) {
       for (x = 0; x < W; x++) {
         unsigned long pixel = XGetPixel(image,x,y);
         unsigned char blue  = (pixel & blue_mask);
         unsigned char green = (pixel & green_mask) >> 8;
         unsigned char red   = (pixel & red_mask) >> 16;

         data[ii + 2] = blue;
         data[ii + 1] = green;
         data[ii + 0] = red;
         ii += 3;
      }
   }
   XDestroyImage(image);
   XDestroyWindow(display, root);
   XCloseDisplay(display);
}

And then the python-file:

import ctypes
import os
from PIL import Image

LibName = 'prtscn.so'
AbsLibPath = os.path.dirname(os.path.abspath(__file__)) + os.path.sep + LibName
grab = ctypes.CDLL(AbsLibPath)

def grab_screen(x1,y1,x2,y2):
    w, h = x2-x1, y2-y1
    size = w * h
    objlength = size * 3

    grab.getScreen.argtypes = []
    result = (ctypes.c_ubyte*objlength)()

    grab.getScreen(x1,y1, w, h, result)
    return Image.frombuffer('RGB', (w, h), result, 'raw', 'RGB', 0, 1)
    
if __name__ == '__main__':
  im = grab_screen(0,0,1440,900)
  im.show()

I was facing the same issue but it was not a permission issue.

When you are doing git clone it will create try to create replica of the respository structure.

When its trying to create the folder/directory with same name and path in your local os process is not allowing to do so and hence the error. There was "background" java process running in Task-manager which was accessing the resource of the directory(folder) and hence it was showing as permission denied for git operations. I have killed those process and that solved my problem. Cheers!!

This is extremely simple! Rather than importing odd modules for python or trying long commands you can take advantage of windows OS commands.

In windows, commands exist to change the command prompt text color. You can use this in python by starting with a: import os

Next you need to have a line changing the text color, place it were you want in your code. os.system('color 4')

You can figure out the other colors by starting cmd.exe and typing color help.

The good part? Thats all their is to it, to simple lines of code. -Day

If the query is written as a view, you can edit the view and update values. Updating values is not possible for all views. It is possible only for specific views. See Modifying Data Through View MSDN Link for more information. You can create view for the query and edit the 200 rows as given below:

Try this;

   var data = "";
   data = "<option value = Some value> Some Option </option>";         
   options = [];
   options.push(data);
   select = document.getElementById("drop_down_id");
   select.innerHTML = optionsHTML.join('\n'); 

For example:

    $(document).on('click','span.external-link',function(){
        var t               = $(this), 
            URL             = t.attr('data-href');        
        $('<a href="'+ URL +'" target="_blank">External Link</a>')[0].click();

    });

Working example.

Try this:

webBrowser1.DocumentText =
    "<html><body>Please enter your name:<br/>" +
    "<input type='text' name='userName'/><br/>" +
    "<a href='http://www.microsoft.com'>continue</a>" +
    "</body></html>";

You can use the index method

ints = [8, 23, 45, 12, 78]
inds = [ints.index(i) for i in ints]

EDIT Highlighted in the comment that this method doesn’t work if there are duplicates in ints, the method below should work for any values in ints:

ints = [8, 8, 8, 23, 45, 12, 78]
inds = [tup[0] for tup in enumerate(ints)]

Or alternatively

ints = [8, 8, 8, 23, 45, 12, 78]
inds = [tup for tup in enumerate(ints)]

if you want to get both the index and the value in ints as a list of tuples.

It uses the method of enumerate in the selected answer to this question, but with list comprehension, making it faster with less code.

Try

document.head.innerHTML += '<meta http-equiv="X-UA-..." content="IE=edge">'

Use [Serializable] for class:

Example:

[Serializable]
public class UserModel {
    public string Name {get;set;}
    public string Age {get;set;}
}

It worked for me!

You can concatenate strings by using the sprintf() function. In your case, for example:

char file[80];
sprintf(file,"%s%s",name,extension);

And you'll end having the concatenated string in "file".

Try this

$('body').on('change', '#multiid', function() {
    // your stuff
})

please check .on() selector

put this in your "head" of your index.html

 <style>
  html body{
    left: 0;
    right: 0;
    bottom: 0;
    top: 0;
    margin: 0;
  }
  </style>

The frankly-incredible data-analysis library for Python called Pandas has a function to read Stata files.

After installing Pandas you can just do:

>>> import pandas as pd
>>> data = pd.io.stata.read_stata('my_stata_file.dta')
>>> data.to_csv('my_stata_file.csv')

Amazing!

WebClient to fetch the contents from the remote url and JavaScriptSerializer or Json.NET to deserialize the JSON into a .NET object. For example you define a model class which will reflect the JSON structure and then:

using (var client = new WebClient())
{
    var json = client.DownloadString("http://example.com/json");
    var serializer = new JavaScriptSerializer();
    SomeModel model = serializer.Deserialize<SomeModel>(json);
    // TODO: do something with the model
}

There are also some REST client frameworks you may checkout such as RestSharp.

Well, Seems like there was a bug when creating custom post types in the function.php file of the theme... which bugged that.

I believe GUIDs are constrained to 16-byte lengths (or 32 bytes for an ASCII hex equivalent).

Use empty() and/or is_null()

http://www.php.net/empty http://www.php.net/is_null

Empty alone will achieve your current usage, is_null would just make more control possible if you wanted to distinguish between a field that is null and a field that is empty.

IPython has a magic command %pwd to get the present working directory. It can be used in following way:

from IPython.terminal.embed import InteractiveShellEmbed

ip_shell = InteractiveShellEmbed()

present_working_directory = ip_shell.magic("%pwd")

On IPython Jupyter Notebook %pwd can be used directly as following:

present_working_directory = %pwd

Ctrl + F2 works for me in Windows 10.

Ctrl + Shift + L starts performance logging

This is for the icon in the browser (most of the sites omit the type):

<link rel="icon" type="image/vnd.microsoft.icon"
     href="http://example.com/favicon.ico" />

or

<link rel="icon" type="image/png"
     href="http://example.com/image.png" />

or

<link rel="apple-touch-icon"
     href="http://example.com//apple-touch-icon.png">

for the shortcut icon:

<link rel="shortcut icon"
     href="http://example.com/favicon.ico" />

Place them in the <head></head> section.

Edit may 2019 some additional examples from MDN

class CheckIfPrime
   {
    static void Main()
      {
          while (true)
        {
            Console.Write("Enter a number: ");
            decimal a = decimal.Parse(Console.ReadLine());
            decimal[] k = new decimal[int.Parse(a.ToString())];
            decimal p = 0;
            for (int i = 2; i < a; i++)
            {
                if (a % i != 0)
                {
                    p += i;
                    k[i] = i;
                }
                else
                    p += i;
            }
            if (p == k.Sum())
               { Console.WriteLine ("{0} is prime!", a);}
            else
               {Console.WriteLine("{0} is NOT prime", a);}

        }
    }

}

You can try this instead


var myu = document.getElementById('myu').value;
var myp = document.getElementById('myp').value;
window.opener.location.href='myurl.php?myu='+ myu +'&myp='+ myp;

Note: Do not use this method to pass sensitive information like username, password.

You're using the declarative style of specifying your pipeline, so you must not use try/catch blocks (which are for Scripted Pipelines), but the post section. See: https://jenkins.io/doc/book/pipeline/syntax/#post-conditions

Try to put the following to the ~/.gitconfig file:

[http]
    proxy = http://proxy:8080
[https]
    proxy = http://proxy:8080
[url "https://"]
    insteadOf = git://

John Resig, author of jQuery, submitted his version of cross-browser implementation of addEvent and removeEvent to circumvent compatibility issues with IE's improper or non-existent addEventListener.

function addEvent( obj, type, fn ) {
  if ( obj.attachEvent ) {
    obj['e'+type+fn] = fn;
    obj[type+fn] = function(){obj['e'+type+fn]( window.event );}
    obj.attachEvent( 'on'+type, obj[type+fn] );
  } else
    obj.addEventListener( type, fn, false );
}
function removeEvent( obj, type, fn ) {
  if ( obj.detachEvent ) {
    obj.detachEvent( 'on'+type, obj[type+fn] );
    obj[type+fn] = null;
  } else
    obj.removeEventListener( type, fn, false );
}

Source: http://ejohn.org/projects/flexible-javascript-events/

If you have installed a module on Xampp (on Linux) via Bitnami and changed chown settings, make sure that the /opt/lampp/apps/<app>/htdocs and tmp usergroup is daemon with all other sibling files and folders chowned to the user you installed as, e.g. cd /opt/lampp/apps/<app>, sudo chown -R root:root ., followed by sudo chown -R root:daemon htdocs tmp.

Here's a quick and dirty method that does what you want in a generic way. You'll need to add exception handling and you'll probably want to cache the BeanInfo types in a weakhashmap.

public Map<String, Object> getNonNullProperties(final Object thingy) {
    final Map<String, Object> nonNullProperties = new TreeMap<String, Object>();
    try {
        final BeanInfo beanInfo = Introspector.getBeanInfo(thingy
                .getClass());
        for (final PropertyDescriptor descriptor : beanInfo
                .getPropertyDescriptors()) {
            try {
                final Object propertyValue = descriptor.getReadMethod()
                        .invoke(thingy);
                if (propertyValue != null) {
                    nonNullProperties.put(descriptor.getName(),
                            propertyValue);
                }
            } catch (final IllegalArgumentException e) {
                // handle this please
            } catch (final IllegalAccessException e) {
                // and this also
            } catch (final InvocationTargetException e) {
                // and this, too
            }
        }
    } catch (final IntrospectionException e) {
        // do something sensible here
    }
    return nonNullProperties;
}

See these references:

• BeanInfo (JavaDoc)
• Introspector.getBeanInfo(class) (JavaDoc)
• Introspection (Sun Java Tutorial)

Dim myRow() As Data.DataRow
myRow = dt.Select("MyColumnName = 'SomeColumnTitle'")
myRow(0)("SomeOtherColumnTitle") = strValue

Code above instantiates a DataRow. Where "dt" is a DataTable, you get a row by selecting any column (I know, sounds backwards). Then you can then set the value of whatever row you want (I chose the first row, or "myRow(0)"), for whatever column you want.

OK why so complex!

package main

import (
    "fmt"
    "math/rand"
    "time"
)

func main() {
    rand.Seed( time.Now().UnixNano())
    var bytes int

    for i:= 0 ; i < 10 ; i++{ 
        bytes = rand.Intn(6)+1
        fmt.Println(bytes)
        }
    //fmt.Println(time.Now().UnixNano())
}

This is based off the dystroy's code but fitted for my needs.

It's die six (rands ints 1 =< i =< 6)

func randomInt (min int , max int  ) int {
    var bytes int
    bytes = min + rand.Intn(max)
    return int(bytes)
}

The function above is the exactly same thing.

I hope this information was of use.

Try this way:

select * from tab
where DateCol between DateAdd(DD,-7,GETDATE() ) and GETDATE() 

They say it right there in the documentation for the FPDF constructor:

FPDF([string orientation [, string unit [, mixed size]]])

This is the class constructor. It allows to set up the page size, the orientation and the unit of measure used in all methods (except for font sizes). Parameters ...

size

The size used for pages. It can be either one of the following values (case insensitive):

A3 A4 A5 Letter Legal

or an array containing the width and the height (expressed in the unit given by unit).

They even give an example with custom size:

Example with a custom 100x150 mm page size:

$pdf = new FPDF('P','mm',array(100,150));

I followed Andrew's answer, but I also had to follow https://stackoverflow.com/a/35833548 and set the x and y axes separately due to a bug in my version of ggplot (v2.1.0).

Instead of

theme(axis.line = element_line(color = 'black'))

I used

theme(axis.line.x = element_line(color="black", size = 2),
    axis.line.y = element_line(color="black", size = 2))

@Flubba, does this allow me to have folders inside my include directory? flat include directories give me nightmares. as the whole objects directory should be in the inc directory.

Oh yes, absolutely. So for example, we use a single layer of subfolders, generally:

require_once('library/string.class.php')

You need to be careful with relying on the include path too much in really high traffic sites, because php has to hunt through the current directory and then all the directories on the include path in order to see if your file is there and this can slow things up if you're getting hammered.

So for example if you're doing MVC, you'd put the path to your application directoy in the include path and then specify refer to things in the form

'model/user.class'
'controllers/front.php'

or whatever.

But generally speaking, it just lets you work with really short paths in your PHP that will work from anywhere and it's a lot easier to read than all that realpath document root malarkey.

The benefit of those script-based alternatives others have suggested is they work anywhere, even on shared boxes; setting the include path requires a little more thought and effort but as I mentioned lets you start using __autoload which just the coolest.

please, be sure your connected to a ubuntu server, I Had the same problem but I was connected to other distro, check the AMI value in your details instance, it should be something like

AMI: ubuntu/images/ebs/ubuntu-precise-12.04-amd64-server-20130411.1 

hope it helps

Try:

next(g)

Check out this neat table that shows the differences in syntax between 2 and 3 when it comes to this.

I did something like this myself.

num<0?num*=-1:'';

It checks if the number is negative and if it is, multiply with -1 This does return a value, its up to you if you capture it. In case you want to assign it to something, you should probably do something like:

var out = num<0?num*=-1:num; //I think someone already mentioned this variant.

But it really depends what your goal is. For me it was simple, make it positive if negative, else do nothing. Hence the '' in the code. In this case i used tertiary operator cause I wanted to, it could very well be:

if(num<0)num*=-1;

I saw the bitwise solution here and wanted to comment on that one too.

~--num; //Drawback for this is that num original value will be reduced by 1

This soultion is very fancy in my opinion, we could rewrite it like this:

~(num = num-1);

In simple terms, we take the negative number, take one away from it and then bitwise invert it. If we had bitwise inverted it normally we would get a value 1 too small. You can also do this:

~num+1; //Wont change the actual num value, merely returns the new value

That will do the same but will invert first and then add 1 to the positive number. Although you CANT do this:

~num++; //Wont display the right value.

That will not work cause of precedence, postfix operators such as num++ would be evaluated before ~ and the reason prefix ++num wouldnt work even though it is on the same precedence as bitwise NOT(~), is cause it is evaluated from right to left. I did try to swap them around but it seems that prefix is a little finicky compared to bitwise NOT. The +1 will work because '+' has a higher precedence and will be evaluated later.

I found that solution to be rather fun and decided to expand on it as it was just thrown in there and post people looking at it were probably ignoring it. Although yes, it wont work with floats.

My hopes are that this post hasn't moved away from the original question. :/

Here is simple code. You must set an id for your input. Here call it 'myInput':

var myform = document.getElementById('myform');
myform.onsubmit = function(){
    document.getElementById('myInput').value = '1';
    myform.submit();
};

Short answer: final helps a tiny bit but... use defensive programming on the client side instead.

Indeed, the problem with final is that it only enforces the reference is unchanged, gleefully allowing the referenced object members to be mutated, unbeknownst to the caller. Hence the best practice in this regard is defensive programming on the caller side, creating deeply immutable instances or deep copies of objects that are in danger of being mugged by unscrupulous APIs.

Write the src tag for calling the js file as

<script type='text/javascript' src='../Users/myUserName/Desktop/myPage.js'></script>

This should work.

Partial Class _Default
    Inherits System.Web.UI.Page
    Dim str As String

    Protected Sub Page_Disposed(sender As Object, e As System.EventArgs) Handles Me.Disposed

        str += "PAGE DISPOSED" & "<br />"
    End Sub

    Protected Sub Page_Error(sender As Object, e As System.EventArgs) Handles Me.Error
        str += "PAGE ERROR " & "<br />"
    End Sub

    Protected Sub Page_Init(sender As Object, e As System.EventArgs) Handles Me.Init
        str += "PAGE INIT " & "<br />"
    End Sub

    Protected Sub Page_InitComplete(sender As Object, e As System.EventArgs) Handles Me.InitComplete
        str += "INIT Complte " & "<br />"
    End Sub

    Protected Sub Page_Load(sender As Object, e As System.EventArgs) Handles Me.Load
        str += "PAGE LOAD " & "<br />"

    End Sub

    Protected Sub Page_LoadComplete(sender As Object, e As System.EventArgs) Handles Me.LoadComplete
        str += "PAGE LOAD Complete " & "<br />"
    End Sub

    Protected Sub Page_PreInit(sender As Object, e As System.EventArgs) Handles Me.PreInit
        str = ""
        str += "PAGE PRE INIT" & "<br />"
    End Sub

    Protected Sub Page_PreLoad(sender As Object, e As System.EventArgs) Handles Me.PreLoad
        str += "PAGE PRE LOAD " & "<br />"
    End Sub

    Protected Sub Page_PreRender(sender As Object, e As System.EventArgs) Handles Me.PreRender
        str += "PAGE PRE RENDER " & "<br />"
    End Sub

    Protected Sub Page_PreRenderComplete(sender As Object, e As System.EventArgs) Handles Me.PreRenderComplete
        str += "PAGE PRE RENDER COMPLETE " & "<br />"
    End Sub

    Protected Sub Page_SaveStateComplete(sender As Object, e As System.EventArgs) Handles Me.SaveStateComplete
        str += "PAGE SAVE STATE COMPLTE  " & "<br />"
        lbl.Text = str
    End Sub

    Protected Sub Page_Unload(sender As Object, e As System.EventArgs) Handles Me.Unload
        'Response.Write("PAGE UN LOAD\n")
    End Sub
End Class

C# 7 adds support for local functions

Here is the previous example using a local function

void Method()
{
    string localFunction(string source)
    {
        // add your functionality here
        return source ;
    };

   // call the inline function
   localFunction("prefix");
}

Your query contains columns which could be present with the same name in more than one table you are referencing, hence the not unique error. It's best if you make the references explicit and/or use table aliases when joining.

Try

    SELECT pa.ProjectID, p.Project_Title, a.Account_ID, a.Username, a.Access_Type, c.First_Name, c.Last_Name
      FROM Project_Assigned pa
INNER JOIN Account a
        ON pa.AccountID = a.Account_ID
INNER JOIN Project p
        ON pa.ProjectID = p.Project_ID
INNER JOIN Clients c
        ON a.Account_ID = c.Account_ID
     WHERE a.Access_Type = 'Client';

Check your config file on views directory. in the add the key for MVC 4/5

From Java 9, the default to load properties file has been changed to UTF-8. https://docs.oracle.com/javase/9/intl/internationalization-enhancements-jdk-9.htm

Git has two types of branches: local and remote. To use git pull and git push as you'd like, you have to tell your local branch (my_test) which remote branch it's tracking. In typical Git fashion this can be done in both the config file and with commands.

Commands

Make sure you're on your master branch with

1)git checkout master

then create the new branch with

2)git branch --track my_test origin/my_test

and check it out with

3)git checkout my_test.

You can then push and pull without specifying which local and remote.

However if you've already created the branch then you can use the -u switch to tell git's push and pull you'd like to use the specified local and remote branches from now on, like so:

git pull -u my_test origin/my_test
git push -u my_test origin/my_test

Config

The commands to setup remote branch tracking are fairly straight forward but I'm listing the config way as well as I find it easier if I'm setting up a bunch of tracking branches. Using your favourite editor open up your project's .git/config and add the following to the bottom.

[remote "origin"]
    url = [email protected]:username/repo.git
    fetch = +refs/heads/*:refs/remotes/origin/*
[branch "my_test"]
    remote = origin
    merge = refs/heads/my_test

This specifies a remote called origin, in this case a GitHub style one, and then tells the branch my_test to use it as it's remote.

You can find something very similar to this in the config after running the commands above.

Some useful resources:

• http://www.kernel.org/pub/software/scm/git/docs/git-branch.html
• http://gitready.com/beginner/2009/03/09/remote-tracking-branches.html

In my case, a file has USC-2 LE BOM encoding, according to Notepad++. It is encoding="utf_16_le" for python.

Hope, it helps to find an answer a bit faster for someone.

Make sure you checkout Datejs when dealing with dates in JavaScript. It's quite impressive and well documented as you can see in case of the toString function.

EDIT: Tyler Forsythe points out, that datejs is outdated. I use it in my current project and hadn't any trouble with it, however you should be aware of this and consider alternatives.

tl;dr

what is the way to retrieve a Date object so that its always in GMT?

Instant.now() 

Details

You are using troublesome confusing old date-time classes that are now supplanted by the java.time classes.

Instant = UTC

The Instant class represents a moment on the timeline in UTC with a resolution of nanoseconds (up to nine (9) digits of a decimal fraction).

Instant instant = Instant.now() ; // Current moment in UTC.

ISO 8601

To exchange this data as text, use the standard ISO 8601 formats exclusively. These formats are sensibly designed to be unambiguous, easy to process by machine, and easy to read across many cultures by people.

The java.time classes use the standard formats by default when parsing and generating strings.

String output = instant.toString() ;  

2017-01-23T12:34:56.123456789Z

Time zone

If you want to see that same moment as presented in the wall-clock time of a particular region, apply a ZoneId to get a ZonedDateTime.

Specify a proper time zone name in the format of continent/region, such as America/Montreal, Africa/Casablanca, or Pacific/Auckland. Never use the 3-4 letter abbreviation such as EST or IST as they are not true time zones, not standardized, and not even unique(!).

ZoneId z = ZoneId.of( "Asia/Singapore" ) ;
ZonedDateTime zdt = instant.atZone( z ) ;  // Same simultaneous moment, same point on the timeline.

See this code live at IdeOne.com.

Notice the eight hour difference, as the time zone of Asia/Singapore currently has an offset-from-UTC of +08:00. Same moment, different wall-clock time.

instant.toString(): 2017-01-23T12:34:56.123456789Z

zdt.toString(): 2017-01-23T20:34:56.123456789+08:00[Asia/Singapore]

Convert

Avoid the legacy java.util.Date class. But if you must, you can convert. Look to new methods added to the old classes.

java.util.Date date = Date.from( instant ) ;

…going the other way…

Instant instant = myJavaUtilDate.toInstant() ;

Date-only

For date-only, use LocalDate.

LocalDate ld = zdt.toLocalDate() ;

About java.time

The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date, Calendar, & SimpleDateFormat.

The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.

To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.

Where to obtain the java.time classes?

• Java SE 8, Java SE 9, and later
  • Built-in.
  • Part of the standard Java API with a bundled implementation.
  • Java 9 adds some minor features and fixes.
• Java SE 6 and Java SE 7
  • Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
• Android
  • The ThreeTenABP project adapts ThreeTen-Backport (mentioned above) for Android specifically.
  • See How to use ThreeTenABP….

The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval, YearWeek, YearQuarter, and more.

Try in yourbatch

set "batchisin=%~dp0"

which should set the variable to your batch's location.

For Chrome, instead of

response.AppendHeader("X-Frame-Options", "ALLOW-FROM " + host);

you need to add Content-Security-Policy

string selfAuth = System.Web.HttpContext.Current.Request.Url.Authority;
string refAuth = System.Web.HttpContext.Current.Request.UrlReferrer.Authority;
response.AppendHeader("Content-Security-Policy", "default-src 'self' 'unsafe-inline' 'unsafe-eval' data: *.msecnd.net vortex.data.microsoft.com " + selfAuth + " " + refAuth);

to the HTTP-response-headers.
Note that this assumes you checked on the server whether or not refAuth is allowed.
And also, note that you need to do browser-detection in order to avoid adding the allow-from header for Chrome (outputs error on console).

For details, see my answer here.

You can do like that In Kotlin If you need kotlin code in the future

val myUri = getImageUri(applicationContext, myBitmap!!)
val finalFile = File(getRealPathFromURI(myUri))

fun getImageUri(inContext: Context, inImage: Bitmap): Uri {
    val bytes = ByteArrayOutputStream()
    inImage.compress(Bitmap.CompressFormat.JPEG, 100, bytes)
    val path = MediaStore.Images.Media.insertImage(inContext.contentResolver, inImage, "Title", null)
    return Uri.parse(path)
}

fun getRealPathFromURI(uri: Uri): String {
    val cursor = contentResolver.query(uri, null, null, null, null)
    cursor!!.moveToFirst()
    val idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA)
    return cursor.getString(idx)
}

Simply put, if an exception or error is thrown, something's wrong. It may not be something very wrong, but creating, throwing, and catching errors and exceptions just for the sake of using goto statements is not a good idea, and it's rarely done. 99% of the time, there was a problem somewhere.

Problems need to be dealt with. Just like how it is in life, in programming, if you just leave problems alone and try to ignore them, they don't just go away on their own a lot of times; instead they get bigger and multiply. To prevent a problem from growing on you and striking again further down the road, you either 1) eliminate it and clean up the mess afterwards, or 2) contain it and clean up the mess afterwards.

Just ignoring exceptions and errors and leaving them be like that is a good way to experience memory leaks, outstanding database connections, needless locks on file permissions, etc.

On rare occasions, the problem is so miniscule, trivial, and - aside from needing a try...catch block - self-contained, that there really is just no mess to be cleaned up afterwards. These are the only occasions when this best practice doesn't necessarily apply. In my experience, this has generally meant that whatever the code is doing is basically petty and forgoable, and something like retry attempts or special messages are worth neither the complexity nor holding the thread up on.

At my company, the rule is to almost always do something in a catch block, and if you don't do anything, then you must always place a comment with a very good reason why not. You must never pass or leave an empty catch block when there is anything to be done.

Go to manifest in which specific activity you want to change Action bar Title name and write android:label="Title name"

In future, for those that use python3 and later, here's another code to find response code.

import urllib.request

def getResponseCode(url):
    conn = urllib.request.urlopen(url)
    return conn.getcode()

If you're using a table view to display Settings and other options (like the built-in Settings app does), then you can set your Table View Content to Static Cells under the Attributes Inspector. Also, to do this, you must embedded your Table View in a UITableViewController instance.

A shell script to accomplish this:

#!/bin/bash

# Remove whitespace
function remWS {
    if [ -z "${1}" ]; then
        cat | tr -d '[:space:]'
    else
        echo "${1}" | tr -d '[:space:]'
    fi
}

for pkg in $(adb shell pm list packages -3 | cut -d':' -f2); do
    apk_loc="$(adb shell pm path $(remWS $pkg) | cut -d':' -f2 | remWS)"
    apk_name="$(adb shell aapt dump badging $apk_loc | pcregrep -o1 $'application-label:\'(.+)\'' | remWS)"
    apk_info="$(adb shell aapt dump badging $apk_loc | pcregrep -o1 '\b(package: .+)')"

    echo "$apk_name v$(echo $apk_info | pcregrep -io1 -e $'\\bversionName=\'(.+?)\'')"
done

At first I thought that this would work:

select DBMS_Random.Value(1,9) output
from   ...

However, this does not generate an even distribution of output values:

select output,
       count(*)
from   (
       select round(dbms_random.value(1,9)) output
       from   dual
       connect by level <= 1000000)
group by output
order by 1

1   62423
2   125302
3   125038
4   125207
5   124892
6   124235
7   124832
8   125514
9   62557

The reasons are pretty obvious I think.

I'd suggest using something like:

floor(dbms_random.value(1,10))

Hence:

select output,
       count(*)
from   (
       select floor(dbms_random.value(1,10)) output
       from   dual
       connect by level <= 1000000)
group by output
order by 1

1   111038
2   110912
3   111155
4   111125
5   111084
6   111328
7   110873
8   111532
9   110953

give on .view-type class float:left; or delete the float:right; of .view-name

edit: Wrap your div <div class="view-row"> with another div for example <div class="table">

and set the following css :

.table {
    display:table;
    width:100%;}

You have to use the table structure for correct results.

Make sure to use full paths, e.g. not only "video.avi" but the full path to that file.

A simple trick for debugging would be to start a command window using cmd /k <command>instead:

string ffmpegPath = Path.Combine(path, "ffmpeg.exe");
string ffmpegParams = @"-f image2 -i frame%d.jpg -vcodec"
    + @" mpeg4 -b 800k C:\myFolder\video.avi"

Process ffmpeg = new Process();
ffmpeg.StartInfo.FileName = "cmd.exe";
ffmpeg.StartInfo.Arguments = "/k " + ffmpegPath + " " + ffmpegParams
ffmpeg.Start();

This will leave the command window open so that you can easily check the output.

Used this approach for array of bytes:

Initially:

byte[] bytes = new byte[0];

Whenever required (Need to provide original length for extending):

Array.Resize<byte>(ref bytes, bytes.Length + requiredSize);

Reset:

Array.Resize<byte>(ref bytes, 0);

Typed List Method

Initially:

List<byte> bytes = new List<byte>();

Whenever required:

bytes.AddRange(new byte[length]);

Release/Clear:

bytes.Clear()

Here's a dynamic resize of iframe include way, with some delayed rerender on resize event:

function _facebook() {

    var parent = document.getElementById('facebook');
    var width = (window.innerWidth > 540) ? 500 : window.innerWidth - 40;
    if (parent.firstChild && parent.firstChild.width == width) { return; }
    var url = 'https://www.facebook.com/plugins/page.php?href=YOUR_FACEBOOK_PAGE_URL&tabs=messages&width='+width+'&height=500&small_header=false&adapt_container_width=true&hide_cover=false&show_facepile=true&appId=YOUR_APP_ID';
    var i = document.createElement('iframe');
    i.src = url;
    i.width = width;
    i.height = 500;
    i.style = 'border:none;overflow:hidden';
    i.scrolling = "no";
    i.frameborder = "0";
    i.allowTransparency = "true";
    while (parent.firstChild) { parent.removeChild(parent.firstChild); }
    parent.appendChild(i);

}

_facebook();

$(window).resize(function() {
    clearTimeout(window.resizedFinished);
    window.resizedFinished = setTimeout(function(){
        _facebook();
    }, 250);
});

The Activity which you want it to be the very first screen if your app is opened, then mention it as LAUNCHER in the intent category and remaining activities mention Default in intent category.

For example :- There is 2 activity A and B
The activity A is LAUNCHER so make it as LAUNCHER in the intent Category and B is child for Activity A so make it as DEFAULT.

<application android:icon="@drawable/icon" android:label="@string/app_name">
    <activity android:name=".ListAllActivity"
              android:label="@string/app_name">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity android:name=".AddNewActivity" android:label="@string/app_name">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
</application>

Using an outdated gradle version may also result to fail in synchronization. Download latest version from https://gradle.org/releases/ and download the "complete" latest version. Now replace it with the outdated version which is located C:\Program Files\Android\Android Studio\gradle. Go to settings(ctrl+alt+s) ,go to gradle and add the the new gradle directory in "use local gradle distribution" "Gradle home:C:\Program Files\Android\Android Studio\gradle\gradle4.4.1 ."

It Worked for me. Hope u understand.

[SOLVED] Neos/swiftmailer: Address in mailbox given [] does not comply with RFC 2822, 3.6.2

Exception in line 261 of /var/www/html/vendor/Packages/Libraries/swiftmailer/swiftmailer/lib/classes/Swift/Mime/Headers/MailboxHeader.php: Address in mailbox given [] does not comply with RFC 2822, 3.6.2.

private function _assertValidAddress($address)
{
    if (!preg_match('/^'.$this->getGrammar()->getDefinition('addr-spec').'$/D',
        $address)) {
        throw new Swift_RfcComplianceException(
            'Address in mailbox given ['.$address.
            '] does not comply with RFC 2822, 3.6.2.'
            );
    }
}

https://discuss.neos.io/t/solved-neos-swiftmailer-address-in-mailbox-given-does-not-comply-with-rfc-2822-3-6-2/3012

Another possible solution that we can use 2 HTML element to store brief and complete text. Hence we can show/hide appropriate HTML element :-)

<p class="content_description" id="brief_description" style="display: block;"> blah blah blah blah blah  </p><p class="content_description" id="complete_description" style="display: none;"> blah blah blah blah blah with complete text </p>

/* jQuery code to toggle both paragraph. */

(function(){
        $('#toggle_content').on(
                'click', function(){
                                $("#complete_description").toggle();
                                $("#brief_description").toggle();
                                if ($("#complete_description").css("display") == "none") {
                                    $(this).text('More...');
                                }   else{
                                    $(this).text('Less...');
                                }
                        }
                );
    })();

Actually, as I know, you can't do some actions exactly when resize is off, simply because you don't know future user's actions. But you can assume the time passed between two resize events, so if you wait a little more than this time and no resize is made, you can call your function.
Idea is that we use setTimeout and it's id in order to save or delete it. For example we know that time between two resize events is 500ms, therefore we will wait 750ms.

var a;_x000D_
$(window).resize(function(){_x000D_
  clearTimeout(a);_x000D_
  a = setTimeout(function(){_x000D_
    // call your function_x000D_
  },750);_x000D_
});

Unfortunately you can't declare database names with a variable in that format.

For what you're trying to accomplish, you're going to need to wrap your statements within an EXEC() statement. So you'd have something like:

DECLARE @Sql varchar(max) ='CREATE DATABASE ' + @DBNAME

Then call

EXECUTE(@Sql) or sp_executesql(@Sql)

to execute the sql string.

Try TinyXML.

http://sourceforge.net/projects/tinyxml

use id of the element except x_path.It will work 100%

public static byte[] serialize(Object obj) throws IOException {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    ObjectOutputStream os = new ObjectOutputStream(out);
    os.writeObject(obj);
    return out.toByteArray();
}
public static Object deserialize(byte[] data) throws IOException, ClassNotFoundException {
    ByteArrayInputStream in = new ByteArrayInputStream(data);
    ObjectInputStream is = new ObjectInputStream(in);
    return is.readObject();
}

You must add these lines in the web.config

<httpHandlers>
  <remove verb="*" path="*.asmx"/>
  <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
  <add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
  <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false"/>
</httpHandlers>
<httpModules>
  <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
</httpModules>
</system.web>

Hope this helps.

Essentially, PHPStorm = WebStorm + PHP, SQL and more.

BUT (and this is a very important "but") because it is capable of parsing so much more, it quite often fails to parse Node.js dependencies, as they (probably) conflict with some other syntax it is capable of parsing.

The most notable example of that would be Mongoose model definition, where WebStorm easily recognizes mongoose.model method, whereas PHPStorm marks it as unresolved as soon as you connect Node.js plugin.

Surprisingly, it manages to resolve the method if you turn the plugin off, but leave the core modules connected, but then it cannot be used for debugging. And this happens to quite a few methods out there.

All this goes for PHPStorm 8.0.1, maybe in later releases this annoying bug would be fixed.

Based on your question:

My question is, using the code below, how would you be able to have multiple clients connected? I've tried lists, but I just can't figure out the format for that. How can this be accomplished where multiple clients are connected at once and I am able to send a message to a specific client?

Using the code you gave, you can do this:

#!/usr/bin/python           # This is server.py file                                                                                                                                                                           

import socket               # Import socket module
import thread

def on_new_client(clientsocket,addr):
    while True:
        msg = clientsocket.recv(1024)
        #do some checks and if msg == someWeirdSignal: break:
        print addr, ' >> ', msg
        msg = raw_input('SERVER >> ')
        #Maybe some code to compute the last digit of PI, play game or anything else can go here and when you are done.
        clientsocket.send(msg)
    clientsocket.close()

s = socket.socket()         # Create a socket object
host = socket.gethostname() # Get local machine name
port = 50000                # Reserve a port for your service.

print 'Server started!'
print 'Waiting for clients...'

s.bind((host, port))        # Bind to the port
s.listen(5)                 # Now wait for client connection.

print 'Got connection from', addr
while True:
   c, addr = s.accept()     # Establish connection with client.
   thread.start_new_thread(on_new_client,(c,addr))
   #Note it's (addr,) not (addr) because second parameter is a tuple
   #Edit: (c,addr)
   #that's how you pass arguments to functions when creating new threads using thread module.
s.close()

As Eli Bendersky mentioned, you can use processes instead of threads, you can also check python threading module or other async sockets framework. Note: checks are left for you to implement how you want and this is just a basic framework.

This worked well for me.

curl -X POST --data @json_out.txt http://localhost:8080/

Where,

-X Means the http verb.

--data Means the data you want to send.

From my understanding, fixed-point arithmetic is done using integers. where the decimal part is stored in a fixed amount of bits, or the number is multiplied by how many digits of decimal precision is needed.

For example, If the number 12.34 needs to be stored and we only need two digits of precision after the decimal point, the number is multiplied by 100 to get 1234. When performing math on this number, we'd use this rule set. Adding 5620 or 56.20 to this number would yield 6854 in data or 68.54.

If we want to calculate the decimal part of a fixed-point number, we use the modulo (%) operand.

12.34 (pseudocode):

v1 = 1234 / 100 // get the whole number
v2 = 1234 % 100 // get the decimal number (100ths of a whole).
print v1 + "." + v2 // "12.34"

Floating point numbers are a completely different story in programming. The current standard for floating point numbers use something like 23 bits for the data of the number, 8 bits for the exponent, and 1 but for sign. See this Wikipedia link for more information on this.

ObservableCollection Caveat

Mentioned above (Said Roohullah Allem)

What makes the ObservableCollection class unique is that this class supports an event named CollectionChanged.

Keep this in mind...If you adding a large number of items to an ObservableCollection the UI will also update that many times. This can really gum up or freeze your UI. A work around would be to create a new list, add all the items then set your property to the new list. This hits the UI once. Again...this is for adding a large number of items.

Actually maybe you should choose the function update is better.
Here's the document of function update http://api.highcharts.com/highcharts#Series.update

You can just type code like below:

chart.series[0].update({data: [1,2,3,4,5]})

These code will merge the origin option, and update the changed data.

To avoid problems of side effects after changing env, especially using multiple nodes, it is better to set a temporary context.

One safe way to alter the environment is:

 withEnv(['MYTOOL_HOME=/usr/local/mytool']) {
    sh '$MYTOOL_HOME/bin/start'
 }

This approach does not poison the env after the command execution.

As of 2.1, from bootstrap documentation at http://twitter.github.com/bootstrap/components.html#navs, you can.

Disabled state

For any nav component (tabs, pills, or list), add .disabled for gray links and no hover effects. Links will remain clickable, however, unless you remove the href attribute. Alternatively, you could implement custom JavaScript to prevent those clicks.

See https://github.com/twitter/bootstrap/issues/2764 for the feature add discussion.

contentView anchor mystery:

In one bizarre case this

    contentView.translatesAutoresizingMaskIntoConstraints = false

would not work. Added four explicit anchors to the contentView and it worked.

class AnnoyingCell: UICollectionViewCell {
    
    @IBOutlet var word: UILabel!
    
    override init(frame: CGRect) {
        super.init(frame: frame); common() }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder); common() }
    
    private func common() {
        contentView.translatesAutoresizingMaskIntoConstraints = false
        
        NSLayoutConstraint.activate([
            contentView.leftAnchor.constraint(equalTo: leftAnchor),
            contentView.rightAnchor.constraint(equalTo: rightAnchor),
            contentView.topAnchor.constraint(equalTo: topAnchor),
            contentView.bottomAnchor.constraint(equalTo: bottomAnchor)
        ])
    }
}

and as usual

    estimatedItemSize = UICollectionViewFlowLayout.automaticSize

in YourLayout: UICollectionViewFlowLayout

Who knows? Might help someone.

Credit

https://www.vadimbulavin.com/collection-view-cells-self-sizing/

stumbled on to the tip there - never saw it anywhere else in all the 1000s articles on this.

var num = 111,
 separateDigits = num.toString().split(""), i, l = separateDigits.length;

for( i = 0; i < l; ++i ) {
someObject.someMethod( +separateDigits[i] );
}

This isn't exactly an answer, but some useful/related code I made. When you run it and enter any character in the command line it returns getNumericValue(char) ... which doesn't seem to be the same as the ASCII table so be aware. Anyways, not a direct answer to your question but hopefully helpful:

import java.lang.*;
import java.util.*;
/* charVal.java
         */

//infinite loops. whenever you type in a character gives you value of 
//getNumericValue(char)
//
//ctrl+c to exit



public class charVal {
   public static void main(String[] args) {
     Scanner inPut = new Scanner(System.in);
     for(;;){
       char c = inPut.next().charAt(0);
       System.out.printf("\n %s = %d \n", c, Character.getNumericValue(c));
     }
    }
}

Your chunk of code does not create a new one, it only checks if its already there and nothing else.

File file = new File(filePath);
if(file.exists())      
//Do something
else
// Do something else.

The code says everything:

max@serv$ chmod 777 .

Okay, it doesn't say everything.

In UNIX and Linux, the ability to remove a file is not determined by the access bits of that file. It is determined by the access bits of the directory which contains the file.

Think of it this way -- deleting a file doesn't modify that file. You aren't writing to the file, so why should "w" on the file matter? Deleting a file requires editing the directory that points to the file, so you need "w" on the that directory.

You can just use "!important" to get your custom color

.navbar {
 background-color: yourcolor !important;
 }

You need to use get_serving_url from the Images API. As that page explains, you need to call create_gs_key() first to get the key to pass to the Images API.

You can use any bash looping constructs like FOR, with is compatible to Linux and Mac.

https://tiswww.case.edu/php/chet/bash/bashref.html#Looping-Constructs

In your specific case you can define N iterations, with N is a number defining how many curl executions you want.

for n in {1..N}; do curl <arguments>; done

ex:

for n in {1..20}; do curl -d @notification.json -H 'Content-Type: application/json' localhost:3000/dispatcher/notify; done

function fetch_comments($ticket_id){
    $this->db->select('tbl_tickets_replies.comments, 
           tbl_users.username,tbl_roles.role_name');
    $this->db->where('tbl_tickets_replies.ticket_id',$ticket_id);
    $this->db->join('tbl_users','tbl_users.id = tbl_tickets_replies.user_id');
    $this->db->join('tbl_roles','tbl_roles.role_id=tbl_tickets_replies.role_id');
    return $this->db->get('tbl_tickets_replies');
}

Create index.html or index.php file in root directory (in your case - /var/www/html, as @jabaldonedo mentioned)

adb logcat -c

Logcat options are documented here: http://developer.android.com/tools/help/logcat.html

I have another solution for your question .

In the first when use date the output is like this :

Thu 28 Jan 2021 22:29:40 IST

Then if you want only to show current time in hours and minutes you can use this command :

date | cut -d " " -f5 | cut -d ":" -f1-2 

Then the output :

22:29

A likely cause of this problem is Web Proxy Auto Discovery Protocol (WPAD) configuration on the network. The HTTP request will be transparently sent off to a proxy that can send back a response that the client won't accept or is not configured to accept. Before hacking your code to bits, check that WPAD is not in play, particularly if this just "started happening" out of the blue.

You can't. and the reason is that they do not "live" in the same time. The Razor variables are "Server side variables" and they don't exist anymore after the page was sent to the "Client side".

When the server get a request for a view, it creates the view with only HTML, CSS and Javascript code. No C# code is left, it's all get "translated" to the client side languages.

The Javascript code DOES exist when the view is still on the server, but it's meaningless and will be executed by the browser only (Client side again).

This is why you can use Razor variables to change the HTML and Javascript but not vice versa. Try to look at your page source code (CTRL+U in most browsers), there will be no sign of C# code there.

In short:

1. The server gets a request.

2. The server creates or "takes" the view, then computes and translates all the C# code that was embedded in the view to CSS, Javascript, and HTML.

3. The server returns the client side version of the view to the browser as a response to the request. (there is no C# at this point anymore)

4. the browser renders the page and executes all the Javascript

Easy, just find the location where keytool executable is, normally is in java/jre(Version)/bin forexample in my computer is in C:\Program Files\Java\jre7\bin. all you have to do is go to environment variables, click PATH to make it active, then click edit, then add complete path where your keytool is, for me i will add C:\Program Files\Java\jre7\bin this will allow you to execute keytool commands without going to the directory where keytool is installed.

Your Ubuntu definitely has a sufficiently recent version of g++. The flag to use is -std=c++0x.

Imagine you have a numpy array of integers (it works with other types but you need some slight modification). You can do this:

a = np.array([0, 3, 5])
a_str = ','.join(str(x) for x in a) # '0,3,5'
a2 = np.array([int(x) for x in a_str.split(',')]) # np.array([0, 3, 5])

If you have an array of float, be sure to replace int by float in the last line.

You can also use the __repr__() method, which will have the advantage to work for multi-dimensional arrays:

from numpy import array
numpy.set_printoptions(threshold=numpy.nan)
a = array([[0,3,5],[2,3,4]])
a_str = a.__repr__() # 'array([[0, 3, 5],\n       [2, 3, 4]])'
a2 = eval(a_str) # array([[0, 3, 5],
                 #        [2, 3, 4]])

If I properly understood your question, supposing your running script is

/relative/path/to/script/index.php

This would give you the parent directory of your running script relative to the document www:

$parent_dir = dirname(dirname($_SERVER['SCRIPT_NAME'])) . '/';
//$parent_dir will be '/relative/path/to/'

If you want the parent directory of your running script relative to server root:

$parent_dir = dirname(dirname($_SERVER['SCRIPT_FILENAME'])) . '/';
//$parent_dir will be '/root/some/path/relative/path/to/'

Answer is adding this 2 lines of code to Global.asax.cs Application_Start method

var json = GlobalConfiguration.Configuration.Formatters.JsonFormatter;
json.SerializerSettings.PreserveReferencesHandling = 
    Newtonsoft.Json.PreserveReferencesHandling.All;

Reference: Handling Circular Object References

inspect.getframeinfo and other related functions in inspect can help:

>>> import inspect
>>> def f1(): f2()
... 
>>> def f2():
...   curframe = inspect.currentframe()
...   calframe = inspect.getouterframes(curframe, 2)
...   print('caller name:', calframe[1][3])
... 
>>> f1()
caller name: f1

this introspection is intended to help debugging and development; it's not advisable to rely on it for production-functionality purposes.

Procedural programming divides sequences of statements and conditional constructs into separate blocks called procedures that are parameterized over arguments that are (non-functional) values.

Functional programming is the same except that functions are first-class values, so they can be passed as arguments to other functions and returned as results from function calls.

Note that functional programming is a generalization of procedural programming in this interpretation. However, a minority interpret "functional programming" to mean side-effect-free which is quite different but irrelevant for all major functional languages except Haskell.

How about:

class MyClass(object):
    def __init__(self, filename):
        self.filename = filename 
        self.stats = parse_file(filename)

def parse_file(filename):
    #do some parsing
    return results_from_parse

By the way, if you have variables named stat1, stat2, etc., the situation is begging for a tuple: stats = (...).

So let parse_file return a tuple, and store the tuple in self.stats.

Then, for example, you can access what used to be called stat3 with self.stats[2].

In index.js file, simply replace App component with "React.version". E.g.

ReactDOM.render(React.version, document.getElementById('root'));

I have checked this with React v16.8.1

Java is a server side language, whereas javascript is a client side language. Both cannot communicate. If you have setup some server side script using Java you could use AJAX on the client in order to send an asynchronous request to it and thus invoke any possible Java functions. For example if you use jQuery as js framework you may take a look at the $.ajax() method. Or if you wanted to do it using plain javascript, here's a tutorial.

Hmmm you can find lot of examples for configuring spring framework. Anyways here is a sample

@Configuration
@Import({PersistenceConfig.class})
@ComponentScan(basePackageClasses = { 
    ServiceMarker.class,
    RepositoryMarker.class }
)
public class AppConfig {

}

PersistenceConfig

@Configuration
@PropertySource(value = { "classpath:database/jdbc.properties" })
@EnableTransactionManagement
public class PersistenceConfig {

    private static final String PROPERTY_NAME_HIBERNATE_DIALECT = "hibernate.dialect";
    private static final String PROPERTY_NAME_HIBERNATE_MAX_FETCH_DEPTH = "hibernate.max_fetch_depth";
    private static final String PROPERTY_NAME_HIBERNATE_JDBC_FETCH_SIZE = "hibernate.jdbc.fetch_size";
    private static final String PROPERTY_NAME_HIBERNATE_JDBC_BATCH_SIZE = "hibernate.jdbc.batch_size";
    private static final String PROPERTY_NAME_HIBERNATE_SHOW_SQL = "hibernate.show_sql";
    private static final String[] ENTITYMANAGER_PACKAGES_TO_SCAN = {"a.b.c.entities", "a.b.c.converters"};

    @Autowired
    private Environment env;

     @Bean(destroyMethod = "close")
     public DataSource dataSource() {
         BasicDataSource dataSource = new BasicDataSource();
         dataSource.setDriverClassName(env.getProperty("jdbc.driverClassName"));
         dataSource.setUrl(env.getProperty("jdbc.url"));
         dataSource.setUsername(env.getProperty("jdbc.username"));
         dataSource.setPassword(env.getProperty("jdbc.password"));
         return dataSource;
     }

     @Bean
     public JpaTransactionManager jpaTransactionManager() {
         JpaTransactionManager transactionManager = new JpaTransactionManager();
         transactionManager.setEntityManagerFactory(entityManagerFactoryBean().getObject());
         return transactionManager;
     }

    private HibernateJpaVendorAdapter vendorAdaptor() {
         HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
         vendorAdapter.setShowSql(true);
         return vendorAdapter;
    }

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactoryBean() {

         LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
         entityManagerFactoryBean.setJpaVendorAdapter(vendorAdaptor());
         entityManagerFactoryBean.setDataSource(dataSource());
         entityManagerFactoryBean.setPersistenceProviderClass(HibernatePersistenceProvider.class);
         entityManagerFactoryBean.setPackagesToScan(ENTITYMANAGER_PACKAGES_TO_SCAN);             
         entityManagerFactoryBean.setJpaProperties(jpaHibernateProperties());

         return entityManagerFactoryBean;
     }

     private Properties jpaHibernateProperties() {

         Properties properties = new Properties();

         properties.put(PROPERTY_NAME_HIBERNATE_MAX_FETCH_DEPTH, env.getProperty(PROPERTY_NAME_HIBERNATE_MAX_FETCH_DEPTH));
         properties.put(PROPERTY_NAME_HIBERNATE_JDBC_FETCH_SIZE, env.getProperty(PROPERTY_NAME_HIBERNATE_JDBC_FETCH_SIZE));
         properties.put(PROPERTY_NAME_HIBERNATE_JDBC_BATCH_SIZE, env.getProperty(PROPERTY_NAME_HIBERNATE_JDBC_BATCH_SIZE));
         properties.put(PROPERTY_NAME_HIBERNATE_SHOW_SQL, env.getProperty(PROPERTY_NAME_HIBERNATE_SHOW_SQL));

         properties.put(AvailableSettings.SCHEMA_GEN_DATABASE_ACTION, "none");
         properties.put(AvailableSettings.USE_CLASS_ENHANCER, "false");      
         return properties;       
     }

}

Main

public static void main(String[] args) { 
    try (GenericApplicationContext springContext = new AnnotationConfigApplicationContext(AppConfig.class)) {
        MyService myService = springContext.getBean(MyServiceImpl.class);
        try {
            myService.handleProcess(fromDate, toDate);
        } catch (Exception e) {
            logger.error("Exception occurs", e);
            myService.handleException(fromDate, toDate, e);
        }
    } catch (Exception e) {
        logger.error("Exception occurs in loading Spring context: ", e);
    }
}

MyService

@Service
public class MyServiceImpl implements MyService {

    @Inject
    private MyDao myDao;

    @Override
    public void handleProcess(String fromDate, String toDate) {
        List<Student> myList = myDao.select(fromDate, toDate);
    }
}

MyDaoImpl

@Repository
@Transactional
public class MyDaoImpl implements MyDao {

    @PersistenceContext
    private EntityManager entityManager;

    public Student select(String fromDate, String toDate){

        TypedQuery<Student> query = entityManager.createNamedQuery("Student.findByKey", Student.class);
        query.setParameter("fromDate", fromDate);
        query.setParameter("toDate", toDate);
        List<Student> list = query.getResultList();
        return CollectionUtils.isEmpty(list) ? null : list;
    }

}

Assuming maven project: Properties file should be in src/main/resources/database folder

jdbc.properties file

jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=your db url
jdbc.username=your Username
jdbc.password=Your password

hibernate.max_fetch_depth = 3
hibernate.jdbc.fetch_size = 50
hibernate.jdbc.batch_size = 10
hibernate.show_sql = true

ServiceMarker and RepositoryMarker are just empty interfaces in your service or repository impl package.

Let's say you have package name a.b.c.service.impl. MyServiceImpl is in this package and so is ServiceMarker.

public interface ServiceMarker {

}

Same for repository marker. Let's say you have a.b.c.repository.impl or a.b.c.dao.impl package name. Then MyDaoImpl is in this this package and also Repositorymarker

public interface RepositoryMarker {

}

a.b.c.entities.Student

//dummy class and dummy query
@Entity
@NamedQueries({
@NamedQuery(name="Student.findByKey", query="select s from Student s where s.fromDate=:fromDate" and s.toDate = :toDate)
})
public class Student implements Serializable {

    private LocalDateTime fromDate;
    private LocalDateTime toDate;

    //getters setters

}

a.b.c.converters

@Converter(autoApply = true)
public class LocalDateTimeConverter implements AttributeConverter<LocalDateTime, Timestamp> {

    @Override
    public Timestamp convertToDatabaseColumn(LocalDateTime dateTime) {

        if (dateTime == null) {
            return null;
        }
        return Timestamp.valueOf(dateTime);
    }

    @Override
    public LocalDateTime convertToEntityAttribute(Timestamp timestamp) {

        if (timestamp == null) {
            return null;
        }    
        return timestamp.toLocalDateTime();
    }
}

pom.xml

<properties>
    <java-version>1.8</java-version>
    <org.springframework-version>4.2.1.RELEASE</org.springframework-version>
    <hibernate-entitymanager.version>5.0.2.Final</hibernate-entitymanager.version>
    <commons-dbcp2.version>2.1.1</commons-dbcp2.version>
    <mysql-connector-java.version>5.1.36</mysql-connector-java.version>
     <junit.version>4.12</junit.version> 
</properties>

<dependencies>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>${junit.version}</version>
        <scope>test</scope>
    </dependency>

    <!-- Spring -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <dependency>
        <groupId>javax.inject</groupId>
        <artifactId>javax.inject</artifactId>
        <version>1</version>
        <scope>compile</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>${org.springframework-version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>${org.springframework-version}</version>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>${hibernate-entitymanager.version}</version>
    </dependency>

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>${mysql-connector-java.version}</version>
    </dependency>

    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-dbcp2</artifactId>
        <version>${commons-dbcp2.version}</version>
    </dependency>
</dependencies>

<build>
     <finalName>${project.artifactId}</finalName>
     <plugins>
         <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.3</version>
            <configuration>
                <source>${java-version}</source>
                <target>${java-version}</target>
                <compilerArgument>-Xlint:all</compilerArgument>
                <showWarnings>true</showWarnings>
                <showDeprecation>true</showDeprecation>
            </configuration>
        </plugin>
     </plugins>
</build>

Hope it helps. Thanks

No need for jQuery

var type = window.location.hash.substr(1);

Make sure to include the Bootstrap CSS either via the Bootstrap CDN or download it and link it locally

Format your string like so:

[#                    ] 1%\r

Note the \r character. It is the so-called carriage return that will move the cursor back to the beginning of the line.

Finally, make sure you use

System.out.print()

and not

System.out.println()

This is available on linux: pidof keyword

Most likely, as mentioned by others, it is a class carrying the css values:

.clear{clear: both;} 

in order to prevent any more page elements from extending into the footer element. It is a quick and easy way of making sure that pages with columns of varying heights don't cause the footer to render oddly, by possibly setting its top position at the end of a shorter column.

In many cases it is not necessary, but if you are using best-practice standards it is a good idea to use, if you are floating page elements left and right. It functions with page elements similar to the way a horizontal rule works with text, to ensure proper and complete sepperation.

I would recommend using a cursor. A cursor fetch is always a single row (unless you use a bulk collection), and cursors do not automatically throw no_data_found or too_many_rows exceptions; although you may inspect the cursor attribute once opened to determine if you have a row and how many.

declare
v_column my_table.column%type;
l_count pls_integer;
cursor my_cursor is
  select count(*) from my_table where ...;

begin
  open my_cursor;
    fetch my_cursor into l_count;
  close my_cursor;

  if l_count = 1 then
    select whse_code into v_column from my_table where ...;
  else
    v_column := null;
  end if;
end;

Or, even more simple:

    declare
    v_column my_table.column%type;
    cursor my_cursor is
      select column from my_table where ...;

    begin
      open my_cursor;
        fetch my_cursor into v_column;
        -- Optional IF .. THEN based on FOUND or NOTFOUND
        -- Not really needed if v_column is not set
        if my_cursor%notfound then
          v_column := null;
        end if;
      close my_cursor;
    end;

The accepted answer is correct but I'd like to add my two cents. I've run into a problem where I had a project A that had a project B as a dependency. Both projects use slf4j but project B uses log4j while project A uses logback. Project B uses slf4j 1.6.1, while project A uses slf4j 1.7.5 (due to the already included logback 1.2.3 dependency).

The problem: Project A couldn't find a function that exists on slf4j 1.7.5, after checking eclipe's dependency hierarchy tab I found out that during build it was using slf4j 1.6.1 from project B, instead of using logback's slf4j 1.7.5.

I solved the issue by changing the order of the dependencies on project A pom, when I moved project B entry below the logback entry then maven started to build the project using slf4j 1.7.5.

Edit: Adding the slf4j 1.7.5 dependency before Project B dependency worked too.

I used the stream interface together with the stream operation collect and a helper-method to generate an new list.

tourists.stream().filter(this::isNotNull).collect(Collectors.toList());

private <T> boolean isNotNull(final T item) {
    return  item != null;
}

When I were trying install librosa package with pip (pip install librosa), this error were appeared:

ERROR: Cannot uninstall 'llvmlite'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

I tried to remove llvmlite, but pip uninstall could not remove it. So, I used capability of ignore of pip by this code:

pip install librosa --ignore-installed llvmlite

Indeed, you can use this rule for ignoring a package you don't want to consider:

pip install {package you want to install} --ignore-installed {installed package you don't want to consider}

Actually, this is NOT totally correct. I arrived at this page, trying to answer this question myself, as we are transitioning production GitLab server from http:// to https:// and most stuff is working as described above, but when you login to https://server and everything looks fine ... except when you browse to a project or repository, and it displays the SSH and HTTP instructions... It says "http" and the instructions it displays also say "http".

I found some more things to edit though:

/home/git/gitlab/config/gitlab.yml
  production: &base
    gitlab:
      host: git.domain.com

      # Also edit these:
      port: 443
      https: true
...

and

/etc/nginx/sites-available/gitlab
  server {
    server_name git.domain.com;

    # Also edit these:
    listen 443 ssl;
    ssl_certificate     /etc/ssl/certs/somecert.crt;
    ssl_certificate_key /etc/ssl/private/somekey.key;

...

Do you want to find the length of the string in python language ? If you want to find the length of the word, you can use the len function.

string = input("Enter the string : ")

print("The string length is : ",len(string))

OUTPUT : -

Enter the string : viral

The string length is : 5

According to this code golfing solution by Gaffi, the following works:

a = Split(StrConv(s, 64), Chr(0))

Let's assume an 8 bit computer with 8 bit addresses (and thus only 256 bytes of memory). This is part of that memory (the numbers at the top are the addresses):

  54   55   56   57   58   59   60   61   62   63   64   65   66   67   68   69
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
|    | 58 |    |    | 63 |    | 55 |    |    | h  | e  | l  | l  | o  | \0 |    |
+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+

What you can see here, is that at address 63 the string "hello" starts. So in this case, if this is the only occurrence of "hello" in memory then,

const char *c = "hello";

... defines c to be a pointer to the (read-only) string "hello", and thus contains the value 63. c must itself be stored somewhere: in the example above at location 58. Of course we can not only point to characters, but also to other pointers. E.g.:

const char **cp = &c;

Now cp points to c, that is, it contains the address of c (which is 58). We can go even further. Consider:

const char ***cpp = &cp;

Now cpp stores the address of cp. So it has value 55 (based on the example above), and you guessed it: it is itself stored at address 60.

As to why one uses pointers to pointers:

• The name of an array usually yields the address of its first element. So if the array contains elements of type t, a reference to the array has type t *. Now consider an array of arrays of type t: naturally a reference to this 2D array will have type (t *)* = t **, and is hence a pointer to a pointer.
• Even though an array of strings sounds one-dimensional, it is in fact two-dimensional, since strings are character arrays. Hence: char **.
• A function f will need to accept an argument of type t ** if it is to alter a variable of type t *.
• Many other reasons that are too numerous to list here.

You're on the right track with using document.getElementById() as you have done for your first two text boxes. Use something like document.getElementById("textbox3") to retrieve the element. Then you can just set its value property: document.getElementById("textbox3").value = answer;

For the "Your answer is: --", I'd recommend wrapping the "--" in a <span/> (e.g. <span id="answerDisplay">--</span>). Then use document.getElementById("answerDisplay").textContent = answer; to display it.

very simple

$('#label-ID').text("label value which you want to set");

Here is a great article explaining ByteBuffer benefits. Following are the key points in the article:

• First advantage of a ByteBuffer irrespective of whether it is direct or indirect is efficient random access of structured binary data (e.g., low-level IO as stated in one of the answers). Prior to Java 1.4, to read such data one could use a DataInputStream, but without random access.

Following are benefits specifically for direct ByteBuffer/MappedByteBuffer. Note that direct buffers are created outside of heap:

1. Unaffected by gc cycles: Direct buffers won't be moved during garbage collection cycles as they reside outside of heap. TerraCota's BigMemory caching technology seems to rely heavily on this advantage. If they were on heap, it would slow down gc pause times.

2. Performance boost: In stream IO, read calls would entail system calls, which require a context-switch between user to kernel mode and vice versa, which would be costly especially if file is being accessed constantly. However, with memory-mapping this context-switching is reduced as data is more likely to be found in memory (MappedByteBuffer). If data is available in memory, it is accessed directly without invoking OS, i.e., no context-switching.

Note that MappedByteBuffers are very useful especially if the files are big and few groups of blocks are accessed more frequently.

3. Page sharing: Memory mapped files can be shared between processes as they are allocated in process's virtual memory space and can be shared across processes.

You must declare both Success AND Error callback. Adding

error: function(err) {...} 

should fix the problem

Skip all of this. Download Microsoft FUZZY LOOKUP add in. Create tables using your columns. Create a new worksheet. INPUT tables into the tool. Click all corresponding columns check boxes. Use slider for exact matches. HIT go and wait for the magic.

I had this issue as well on Linux

I had the following

  res.render('./views/index')

I changed it too
  res.render('../views/index')

Everything is now working.

GCC compilers always try to compile your program if this is at all possible. However, in some cases, the C and C++ standards specify that certain extensions are forbidden. Conforming compilers such as gcc or g++ must issue a diagnostic when these extensions are encountered. For example, the gcc compiler’s -pedantic option causes gcc to issue warnings in such cases. Using the stricter -pedantic-errors option converts such diagnostic warnings into errors that will cause compilation to fail at such points. Only those non-ISO constructs that are required to be flagged by a conforming compiler will generate warnings or errors.

func decorateText(sub:String, des:String)->NSAttributedString{
    let textAttributesOne = [NSAttributedStringKey.foregroundColor: UIColor.darkText, NSAttributedStringKey.font: UIFont(name: "PTSans-Bold", size: 17.0)!]
    let textAttributesTwo = [NSAttributedStringKey.foregroundColor: UIColor.black, NSAttributedStringKey.font: UIFont(name: "PTSans-Regular", size: 14.0)!]

    let textPartOne = NSMutableAttributedString(string: sub, attributes: textAttributesOne)
    let textPartTwo = NSMutableAttributedString(string: des, attributes: textAttributesTwo)

    let textCombination = NSMutableAttributedString()
    textCombination.append(textPartOne)
    textCombination.append(textPartTwo)
    return textCombination
}

//Implementation

cell.lblFrom.attributedText = decorateText(sub: sender!, des: " - \(convertDateFormatShort3(myDateString: datetime!))")

Angular Material 10 now includes a new date range picker.

To use the new date range picker, you can use the mat-date-range-input and mat-date-range-picker components.

Example

HTML

<mat-form-field>
  <mat-label>Enter a date range</mat-label>
  <mat-date-range-input [rangePicker]="picker">
    <input matStartDate matInput placeholder="Start date">
    <input matEndDate matInput placeholder="End date">
  </mat-date-range-input>
  <mat-datepicker-toggle matSuffix [for]="picker"></mat-datepicker-toggle>
  <mat-date-range-picker #picker></mat-date-range-picker>
</mat-form-field>

You can read and learn more about this in their official documentation.

Unfortunately, they still haven't build a timepicker on this release.

You can find more methods and functions related to Python strings in section 5.6.1. String Methods of the documentation.

w.strip(',.').lower()

The trick to make infinity's answer work without the flickering is to put the scroll-check on another div then the one you want to have fixed.

Derived from the code viixii.com uses I ended up using this:

function sticky_relocate() {
    var window_top = $(window).scrollTop();
    var div_top = $('#sticky-anchor').offset().top;
    if (window_top > div_top)
        $('#sticky-element').addClass('sticky');
    else
        $('#sticky-element').removeClass('sticky');
}

$(function() {
    $(window).scroll(sticky_relocate);
    sticky_relocate();
});

This way the function is only called once the sticky-anchor is reached and thus won't be removing and adding the '.sticky' class on every scroll event.

Now it adds the sticky class when the sticky-anchor reaches the top and removes it once the sticky-anchor return into view.

Just place an empty div with a class acting like an anchor just above the element you want to have fixed.

Like so:

<div id="sticky-anchor"></div>
<div id="sticky-element">Your sticky content</div>

All credit for the code goes to viixii.com

This is a tested method

public static String getExtension(String fileName) {
    char ch;
    int len;
    if(fileName==null || 
            (len = fileName.length())==0 || 
            (ch = fileName.charAt(len-1))=='/' || ch=='\\' || //in the case of a directory
             ch=='.' ) //in the case of . or ..
        return "";
    int dotInd = fileName.lastIndexOf('.'),
        sepInd = Math.max(fileName.lastIndexOf('/'), fileName.lastIndexOf('\\'));
    if( dotInd<=sepInd )
        return "";
    else
        return fileName.substring(dotInd+1).toLowerCase();
}

And test case:

@Test
public void testGetExtension() {
    assertEquals("", getExtension("C"));
    assertEquals("ext", getExtension("C.ext"));
    assertEquals("ext", getExtension("A/B/C.ext"));
    assertEquals("", getExtension("A/B/C.ext/"));
    assertEquals("", getExtension("A/B/C.ext/.."));
    assertEquals("bin", getExtension("A/B/C.bin"));
    assertEquals("hidden", getExtension(".hidden"));
    assertEquals("dsstore", getExtension("/user/home/.dsstore"));
    assertEquals("", getExtension(".strange."));
    assertEquals("3", getExtension("1.2.3"));
    assertEquals("exe", getExtension("C:\\Program Files (x86)\\java\\bin\\javaw.exe"));
}

eXtcos looks promising. Imagine you want to find all the classes that:

1. Extend from class "Component", and store them
2. Are annotated with "MyComponent", and
3. Are in the “common” package.

With eXtcos this is as simple as

ClasspathScanner scanner = new ClasspathScanner();
final Set<Class> classStore = new ArraySet<Class>();

Set<Class> classes = scanner.getClasses(new ClassQuery() {
    protected void query() {
        select().
        from(“common”).
        andStore(thoseExtending(Component.class).into(classStore)).
        returning(allAnnotatedWith(MyComponent.class));
    }
});

You can also do something much shorter:

SELECT FORMAT(2.3332232,'N2')

I don't know what you are comparing to.

But a super simple way to have a border look inset when compared to other non-bordered items is to add a border: ?px solid transparent; to whatever items do not have a border.

It will make the bordered item look inset.

http://jsfiddle.net/cmunns/cgrtd/

[[]]*3 is not the same as [[], [], []].

It's as if you'd said

a = []
listy = [a, a, a]

In other words, all three list references refer to the same list instance.

if you are in windows try this

 docker-machine env --shell cmd default 
 @FOR /f "tokens=*" %i IN ('docker-machine env --shell cmd default') DO @%i

for testing try

docker run hello-world

You can use CSS alone to center like so:

Working Example

.center{_x000D_
    position: absolute;_x000D_
    height: 50px;_x000D_
    width: 50px;_x000D_
    background:red;_x000D_
    top:calc(50% - 50px/2); /* height divided by 2*/_x000D_
    left:calc(50% - 50px/2); /* width divided by 2*/_x000D_
}

<div class="center"></div>

calc() allows you to do basic calculations in css.

MDN Documentation for calc()
Browser support table

Try something like this. This should center any huge element in the middle vertically and horizontally with respect to its parent no matter both of their sizes.

.parent {
    position: relative;
    overflow: hidden;
    //optionally set height and width, it will depend on the rest of the styling used
}

.child {
    position: absolute;
    top: -9999px;
    bottom: -9999px;
    left: -9999px;
    right: -9999px;
    margin: auto;

}

Well, mine isn't all that simpler, but here is the code I use to split a comma-delimited input variable into individual values, and put it into a table variable. I'm sure you could modify this slightly to split based on a space and then to do a basic SELECT query against that table variable to get your results.

-- Create temporary table to parse the list of accounting cycles.
DECLARE @tblAccountingCycles table
(
    AccountingCycle varchar(10)
)

DECLARE @vchAccountingCycle varchar(10)
DECLARE @intPosition int

SET @vchAccountingCycleIDs = LTRIM(RTRIM(@vchAccountingCycleIDs)) + ','
SET @intPosition = CHARINDEX(',', @vchAccountingCycleIDs, 1)

IF REPLACE(@vchAccountingCycleIDs, ',', '') <> ''
BEGIN
    WHILE @intPosition > 0
    BEGIN
        SET @vchAccountingCycle = LTRIM(RTRIM(LEFT(@vchAccountingCycleIDs, @intPosition - 1)))
        IF @vchAccountingCycle <> ''
        BEGIN
            INSERT INTO @tblAccountingCycles (AccountingCycle) VALUES (@vchAccountingCycle)
        END
        SET @vchAccountingCycleIDs = RIGHT(@vchAccountingCycleIDs, LEN(@vchAccountingCycleIDs) - @intPosition)
        SET @intPosition = CHARINDEX(',', @vchAccountingCycleIDs, 1)
    END
END

The concept is pretty much the same. One other alternative is to leverage the .NET compatibility within SQL Server 2005 itself. You can essentially write yourself a simple method in .NET that would split the string and then expose that as a stored procedure/function.

A simple but relatively insecure way would be to use the --net=host option to docker run.

This option makes it so that the container uses the networking stack of the host. Then you can connect to services running on the host simply by using "localhost" as the hostname.

This is easier to configure because you won't have to configure the service to accept connections from the IP address of your docker container, and you won't have to tell the docker container a specific IP address or host name to connect to, just a port.

For example, you can test it out by running the following command, which assumes your image is called my_image, your image includes the telnet utility, and the service you want to connect to is on port 25:

docker run --rm -i -t --net=host my_image telnet localhost 25

If you consider doing it this way, please see the caution about security on this page:

https://docs.docker.com/articles/networking/

It says:

--net=host -- Tells Docker to skip placing the container inside of a separate network stack. In essence, this choice tells Docker to not containerize the container's networking! While container processes will still be confined to their own filesystem and process list and resource limits, a quick ip addr command will show you that, network-wise, they live “outside” in the main Docker host and have full access to its network interfaces. Note that this does not let the container reconfigure the host network stack — that would require --privileged=true — but it does let container processes open low-numbered ports like any other root process. It also allows the container to access local network services like D-bus. This can lead to processes in the container being able to do unexpected things like restart your computer. You should use this option with caution.

 <android.support.design.widget.FloatingActionButton
    android:id="@+id/fab"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="bottom|end"
    app:elevation="6dp"
    app:backgroundTint="@color/colorAccent"
    app:pressedTranslationZ="12dp"
    android:layout_margin="@dimen/fab_margin"
    android:src="@drawable/add"/>

Note that you add colors in res/values/color.xml and include the attribute in your fab

   app:backgroundTint="@color/addedColor"

you just need to add a default constructor to your class to look like this:

class name {
  public:
    string first;
    string last;

  name() {
  }

  name(string a, string b){
    first = a;
    last = b;
  }
};

If you want to concatenate the fields using / as a separator, you can use concat_ws:

select concat_ws('/', col1, col2, col3) from mytable

You cannot escape listing the columns in the query though. The *-syntax works only in "select * from". You can list the columns and construct the query dynamically though.

To convert a valid JSON string back, you can use the json_decode() method.

To convert it back to an object use this method:

$jObj = json_decode($jsonString);

And to convert it to a associative array, set the second parameter to true:

$jArr = json_decode($jsonString, true);

By the way to convert your mentioned string back to either of those, you should have a valid JSON string. To achieve it, you should do the following:

1. In the Coords array, remove the two " (double quote marks) from the start and end of the object.
2. The objects in an array are comma seprated (,), so add commas between the objects in the Coords array..

And you will have a valid JSON String..

Here is your JSON String I converted to a valid one: http://pastebin.com/R16NVerw

It can come from the fact that you have control dragged and created an outlet or action, and forgot to delete it. Even if you deleted the code, or even if you have made enough cmd+Z, you'll need to go in the connection inspector of your storyboard and see if the action or outlet you created is still here or not.

the first step

netstat -vanp tcp | grep 8888

example

tcp4     0      0    127.0.0.1.8888   *.*    LISTEN      131072 131072  76061    0
tcp46    0      0    *.8888           *.*    LISTEN      131072 131072  50523    0

the second step: find your PIDs and kill them

in my case

sudo kill -9 76061 50523

Normal ways would be Integer.toString(i) or String.valueOf(i).

int i = 5;
String strI = String.valueOf(i);

Or

int aInt = 1;    
String aString = Integer.toString(aInt);

You can parse Youtube meta file for all streams available for this particular video id using this link: https://www.youtube.com/get_video_info?video_id={VID} and extract audio only streams.

Here is an example with public Google Image proxy (but you can use any free or your own CORS proxy):

var vid = "3r_Z5AYJJd4",_x000D_
    audio_streams = {},_x000D_
    audio_tag = document.getElementById('youtube');_x000D_
_x000D_
fetch("https://"+vid+"-focus-opensocial.googleusercontent.com/gadgets/proxy?container=none&url=https%3A%2F%2Fwww.youtube.com%2Fget_video_info%3Fvideo_id%3D" + vid).then(response => {_x000D_
    if (response.ok) {_x000D_
        response.text().then(data => {_x000D_
_x000D_
            var data = parse_str(data),_x000D_
                streams = (data.url_encoded_fmt_stream_map + ',' + data.adaptive_fmts).split(',');_x000D_
_x000D_
            streams.forEach(function(s, n) {_x000D_
                var stream = parse_str(s),_x000D_
                    itag = stream.itag * 1,_x000D_
                    quality = false;_x000D_
                console.log(stream);_x000D_
                switch (itag) {_x000D_
                    case 139:_x000D_
                        quality = "48kbps";_x000D_
                        break;_x000D_
                    case 140:_x000D_
                        quality = "128kbps";_x000D_
                        break;_x000D_
                    case 141:_x000D_
                        quality = "256kbps";_x000D_
                        break;_x000D_
                }_x000D_
                if (quality) audio_streams[quality] = stream.url;_x000D_
            });_x000D_
_x000D_
            console.log(audio_streams);_x000D_
_x000D_
            audio_tag.src = audio_streams['128kbps'];_x000D_
            audio_tag.play();_x000D_
        })_x000D_
    }_x000D_
});_x000D_
_x000D_
function parse_str(str) {_x000D_
    return str.split('&').reduce(function(params, param) {_x000D_
        var paramSplit = param.split('=').map(function(value) {_x000D_
            return decodeURIComponent(value.replace('+', ' '));_x000D_
        });_x000D_
        params[paramSplit[0]] = paramSplit[1];_x000D_
        return params;_x000D_
    }, {});_x000D_
}

<audio id="youtube" autoplay controls loop></audio>

Doesn't work for all videos, very depends on monetization settings or something like that.

The reason that this doesn't work is because the variable doesn't change with the textbox. When it initially runs the code it gets the value of the textbox, but afterwards it isn't ever called again. However, when you define the variable in the function, every time that you call the function the variable updates. Then it alerts the variable which is now equal to the textbox's input.

myDropDown.Items.Remove(myDropDown.Items.FindByText("TextToFind"))

Update - as of version 1.3 (june 2016) it is possible to search and replace in Visual Studio Code. Using ctrl + shift + f , you can search and replace text in all files.

It seems this is not possible at the moment (Version 1.1.1 (April 2016))

"Q: Is it possible to globally search and replace?

A: This feature is not yet implemented, but you can expect it to come in the future!"

https://code.visualstudio.com/Docs/editor/codebasics

This seems also requested by community: https://github.com/Microsoft/vscode/issues/1690

I know this is an old question but I believed the asker wanted the class, not the class name. I wrote a little method that will get the actual class. It is sort of cheaty and may not always work, but sometimes when you need the actual class, you will have to use this method...

/**
     * Get the caller class.
     * @param level The level of the caller class.
     *              For example: If you are calling this class inside a method and you want to get the caller class of that method,
     *                           you would use level 2. If you want the caller of that class, you would use level 3.
     *
     *              Usually level 2 is the one you want.
     * @return The caller class.
     * @throws ClassNotFoundException We failed to find the caller class.
     */
    public static Class getCallerClass(int level) throws ClassNotFoundException {
        StackTraceElement[] stElements = Thread.currentThread().getStackTrace();
        String rawFQN = stElements[level+1].toString().split("\\(")[0];
        return Class.forName(rawFQN.substring(0, rawFQN.lastIndexOf('.')));
    }

bundle is used to share data between activities , and to save state of app in oncreate() method so that app will come to know where it was stopped ... I hope it helps :)

WARNING This is for Angular 1.x

If you are looking for Angular (v2+, currently version 8), try this answer or the official guide.

ORIGINAL ANSWER

I have rewritten your JS fiddle here: http://jsfiddle.net/YGQT9/

<div ng-app="myApp">

    <form name="saveTemplateData" action="#" ng-controller="FormCtrl" ng-submit="submitForm()">

        First name:    <br/><input type="text" name="form.firstname">    
        <br/><br/>

        Email Address: <br/><input type="text" ng-model="form.emailaddress"> 
        <br/><br/>

        <textarea rows="3" cols="25">
          Describe your reason for submitting this form ... 
        </textarea> 
        <br/>

        <input type="radio" ng-model="form.gender" value="female" />Female
        <input type="radio" ng-model="form.gender" value="male" />Male 
        <br/><br/>

        <input type="checkbox" ng-model="form.member" value="true"/> Already a member
        <input type="checkbox" ng-model="form.member" value="false"/> Not a member
        <br/>

        <input type="file" ng-model="form.file_profile" id="file_profile">
        <br/>

        <input type="file" ng-model="form.file_avatar" id="file_avatar">
        <br/><br/>

        <input type="submit">
    </form>
</div>

Here I'm using lots of angular directives(ng-controller, ng-model, ng-submit) where you were using basic html form submission. Normally all alternatives to "The angular way" work, but form submission is intercepted and cancelled by Angular to allow you to manipulate the data before submission

BUT the JSFiddle won't work properly as it doesn't allow any type of ajax/http post/get so you will have to run it locally.

For general advice on angular form submission see the cookbook examples

UPDATE The cookbook is gone. Instead have a look at the 1.x guide for for form submission

The cookbook for angular has lots of sample code which will help as the docs aren't very user friendly.

Angularjs changes your entire web development process, don't try doing things the way you are used to with JQuery or regular html/js, but for everything you do take a look around for some sample code, as there is almost always an angular alternative.

#right { 
  background-color: red;
  height: 300px;
  width: 300px;
  z-index: 9999;
  margin-top: 0px;
  position: absolute;
  top:0;
  right:0;
}

position: absolute; top:0; right:0; do the work here! :) Also remove the floating!

Use -Wno-unused-variable should work.

In the layout set your input method options to search.

<EditText
    android:imeOptions="actionSearch" 
    android:inputType="text" />

In the java add the editor action listener.

editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
    @Override
    public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
        if (actionId == EditorInfo.IME_ACTION_SEARCH) {
            performSearch();
            return true;
        }
        return false;
    }
});

void foo<TOne, TTwo>() 
   where TOne : BaseOne
   where TTwo : BaseTwo

More info here:
http://msdn.microsoft.com/en-us/library/d5x73970.aspx

The steps are as follows :

1. Close WAMP (if running)
2. Navigate to WAMP\bin\php\(your version of php)\
3. Edit php.ini
4. Search for curl, uncomment extension=php_curl.dll
5. Navigate to WAMP\bin\Apache\(your version of apache)\bin\
6. Edit php.ini
7. Search for curl, uncomment extension=php_curl.dll
8. Save both
9. Restart WAMP

In my case I ran the following command and it worked (not that I was expecting it to):

sudo pip uninstall pip

Which resulted in:

Uninstalling pip-6.1.1:
  /Library/Python/2.7/site-packages/pip-6.1.1.dist-info/DESCRIPTION.rst
  /Library/Python/2.7/site-packages/pip-6.1.1.dist-info/METADATA
  /Library/Python/2.7/site-packages/pip-6.1.1.dist-info/RECORD
  <and all the other stuff>
  ...

  /usr/local/bin/pip
  /usr/local/bin/pip2
  /usr/local/bin/pip2.7
Proceed (y/n)? y
  Successfully uninstalled pip-6.1.1

Best will be:

link_to image_tag("Search.png", :border => 0, :alt => '', :title => ''), pages_search_path, :class => 'dock-item'

You can get the client's MAC address in javascript, if they are running Windows and allow you to install an ActiveX control.

http://www.eggheadcafe.com/community/aspnet/3/10054371/how-to-get-client-mac-address.aspx

http://codingresource.blogspot.com/2010/02/get-client-mac-address-ip-address-using.html

This is very simple you need to keep different names of every radio input group.

      <input type="radio" name="price">Thousand<br>_x000D_
      <input type="radio" name="price">Lakh<br>_x000D_
      <input type="radio" name="price">Crore_x000D_
      _x000D_
      </br><hr>_x000D_
_x000D_
      <input type="radio" name="gender">Male<br>_x000D_
      <input type="radio" name="gender">Female<br>_x000D_
      <input type="radio" name="gender">Other