I think that this may be easier to read and is definitely the standard for use in C#:

while(true)
{
   //Do My Loop Stuff
}

The issue is that you are trying to have multiple statements in an if without using {}. What you currently have is interpreted like:

if( choice==5 )
{
    System.out.println( ... );
}
break;
else
{
    //...
}

You really want:

if( choice==5 )
{
    System.out.println( ... );
    break;
}
else
{
    //...
}

Also, as Farce has stated, it would be better to use else if for all the conditions instead of if because if choice==1, it will still go through and check if choice==5, which would fail, and it will still go into your else block.

if( choice==1 )
    //...
else if( choice==2 )
    //...
else if( choice==3 )
    //...
else if( choice==4 )
    //...
else if( choice==5 )
{
    //...
}
else
    //...

A more elegant solution would be using a switch statement. However, break only breaks from the most inner "block" unless you use labels. So you want to label your loop and break from that if the case is 5:

LOOP:
for(;;)
{
    System.out.println("---> Your choice: ");
    choice = input.nextInt();
    switch( choice )
    {
        case 1:
            playGame();
            break;
        case 2:
            loadGame();
            break;
        case 2:
            options();
            break;
        case 4:
            credits();
            break;
        case 5:
            System.out.println("End of Game\n Thank you for playing with us!");
            break LOOP;
        default:
            System.out.println( ... );
    }
}

Instead of labeling the loop, you could also use a flag to tell the loop to stop.

bool finished = false;
while( !finished )
{
    switch( choice )
    {
        // ...
        case 5:
            System.out.println( ... )
            finished = true;
            break;
        // ...
    }
}

Ctrl+C is what you need. If it didn't work, hit it harder. :-) Of course, you can also just close the shell window.

Edit: You didn't mention the circumstances. As a last resort, you could write a batch file that contains taskkill /im python.exe, and put it on your desktop, Start menu, etc. and run it when you need to kill a runaway script. Of course, it will kill all Python processes, so be careful.

I had the same problem and I solved it by reading the full line from the console with one scanner object, and then parsing the resulting string using a second scanner object.

Scanner console = new Scanner(System.in);
System.out.println("Enter input here:");
String inputLine = console.nextLine();

Scanner input = new Scanner(inputLine);
List<String> arg = new ArrayList<>();

while (input.hasNext()) {
    arg.add(input.next().toLowerCase());
}

By omitting all parts of the head, the loop can also become infinite:

for (;;) {}

Here is the complete syntax,

#!/usr/bin/python3

import time 

def your_function():
    print("Hello, World")

while True:
    your_function()
    time.sleep(10) #make function to sleep for 10 seconds

Another better way of doing it:

:LOOP
timeout /T 1 /NOBREAK 
::pause or sleep x seconds also valid
call myLabel
if not ErrorLevel 1 goto :LOOP

This way you can take care of errors too

Is there a certain form which one should choose?

You can choose either. Its matter of choice. All are equivalent. while(1) {}/while(true){} is frequently used for infinite loop by programmers.

Ranking by stars or forks is not working. Each promoted or created by a famous company repository is popular at the beginning. Also it is possible to have a number of them which are in trend right now (publications, marketing, events). It doesn't mean that those repositories are useful/popular.

The gitmostwanted.com project (repo at github) analyses GH Archive data in order to highlight the most interesting repositories and exclude others. Just compare the results with mentioned resources.

You need to wrap the text in a div element and include the absolutely positioned element inside of it.

<div class="container">
    <div class="inner">
        <div class="full-height"></div>
        [Your text here]
    </div>
</div>

Css:

.inner: { position: relative; height: auto; }
.full-height: { height: 100%; }

Setting the inner div's position to relative makes the absolutely position elements inside of it base their position and height on it rather than on the .container div, which has a fixed height. Without the inner, relatively positioned div, the .full-height div will always calculate its dimensions and position based on .container.

* {_x000D_
  box-sizing: border-box;_x000D_
}_x000D_
_x000D_
.container {_x000D_
  position: relative;_x000D_
  border: solid 1px red;_x000D_
  height: 256px;_x000D_
  width: 256px;_x000D_
  overflow: auto;_x000D_
  float: left;_x000D_
  margin-right: 16px;_x000D_
}_x000D_
_x000D_
.inner {_x000D_
  position: relative;_x000D_
  height: auto;_x000D_
}_x000D_
_x000D_
.full-height {_x000D_
  position: absolute;_x000D_
  top: 0;_x000D_
  left: 0;_x000D_
  right: 128px;_x000D_
  bottom: 0;_x000D_
  height: 100%;_x000D_
  background: blue;_x000D_
}

<div class="container">_x000D_
  <div class="full-height">_x000D_
  </div>_x000D_
</div>_x000D_
_x000D_
<div class="container">_x000D_
  <div class="inner">_x000D_
    <div class="full-height">_x000D_
    </div>_x000D_
_x000D_
    Lorem ipsum dolor sit amet, consectetur adipisicing elit. Aspernatur mollitia maxime facere quae cumque perferendis cum atque quia repellendus rerum eaque quod quibusdam incidunt blanditiis possimus temporibus reiciendis deserunt sequi eveniet necessitatibus_x000D_
    maiores quas assumenda voluptate qui odio laboriosam totam repudiandae? Doloremque dignissimos voluptatibus eveniet rem quasi minus ex cumque esse culpa cupiditate cum architecto! Facilis deleniti unde suscipit minima obcaecati vero ea soluta odio_x000D_
    cupiditate placeat vitae nesciunt quis alias dolorum nemo sint facere. Deleniti itaque incidunt eligendi qui nemo corporis ducimus beatae consequatur est iusto dolorum consequuntur vero debitis saepe voluptatem impedit sint ea numquam quia voluptate_x000D_
    quidem._x000D_
  </div>_x000D_
</div>

http://jsfiddle.net/M5cTN/

Following https://docs.microsoft.com/en-gb/visualstudio/ide/reference/how-to-manage-word-wrap-in-the-editor

When viewing a document: Edit / Advanced / Word Wrap (Ctrl+E, Ctrl+W)

General settings: Tools / Options / Text Editor / All Languages / Word wrap

Or search for 'word wrap' in the Quick Launch box.

Known issues:

If you're familiar with word wrap in Notepad++, Sublime Text, or Visual Studio Code, be aware of the following issues where Visual Studio behaves differently to other editors:

1. Triple click doesn't select whole line
2. Cut command doesn't delete whole line
3. Pressing End key twice does not move cursor to end of line

Unfortunately these bugs have been closed "lower priority". If you'd like these bugs fixed, please vote for the feature request Fix known issues with word wrap.

var insertedElement = parentElement.insertBefore(newElement, referenceElement);

If referenceElement is null, or undefined, newElement is inserted at the end of the list of child nodes.

insertedElement The node being inserted, that is newElement
parentElement The parent of the newly inserted node.
newElement The node to insert.
referenceElement The node before which newElement is inserted.

Examples can be found here: Node.insertBefore

I don't know about less verbose but I was inspired to coerce the following onto one line by the one-liner request, don't know how Pythonic it is though ;)

var keys = (function(o){var ks=[]; for(var k in o) ks.push(k); return ks})(foo);

When the browser puts something in its cache, it also stores the Last-Modified or ETag header from the server.

The browser then sends a request with the If-Modified-Since or If-None-Match header, telling the server to send a 304 if the content still has that date or ETag.

The server needs some way of calculating a date-modified or ETag for each version of each resource; this typically comes from the filesystem or a separate database column.

To create simple hover enlarge plugin, try this. (DEMO)

HTML

     <div id="content">
     <img src="http://www.freevectorgallery.com/wp-content/uploads/2011/10/Vintage-Microphone- 11395-large.jpg" style="width:50%;" />
     </div>

js

        $(function () {
          $('#content img').hover(function () {
          $(this).toggle(function () {
          $(this).width('70%');
                   });
              });
         });

You can add @PrimaryKey(autoGenerate = true) like this:

@Entity
data class Food(
        var foodName: String, 
        var foodDesc: String, 
        var protein: Double, 
        var carbs: Double, 
        var fat: Double
){
    @PrimaryKey(autoGenerate = true)
    var foodId: Int = 0 // or foodId: Int? = null
    var calories: Double = 0.toDouble()
}

Here's the algorithm stackoverflow uses but rewritten more concisely in perlish pseudocode with a bug fix (no "one hours ago"). The function takes a (positive) number of seconds ago and returns a human-friendly string like "3 hours ago" or "yesterday".

agoify($delta)
  local($y, $mo, $d, $h, $m, $s);
  $s = floor($delta);
  if($s<=1)            return "a second ago";
  if($s<60)            return "$s seconds ago";
  $m = floor($s/60);
  if($m==1)            return "a minute ago";
  if($m<45)            return "$m minutes ago";
  $h = floor($m/60);
  if($h==1)            return "an hour ago";
  if($h<24)            return "$h hours ago";
  $d = floor($h/24);
  if($d<2)             return "yesterday";
  if($d<30)            return "$d days ago";
  $mo = floor($d/30);
  if($mo<=1)           return "a month ago";
  $y = floor($mo/12);
  if($y<1)             return "$mo months ago";
  if($y==1)            return "a year ago";
  return "$y years ago";

Session.Abandon() this will destroy the data.

Note, this won't necessarily truly remove the session token from a user, and that same session token at a later point might get picked up and created as a new session with the same id because it's deemed to be fair game to be used.

You need add parameter errors='coerce' to function to_numeric:

ID = pd.to_numeric(ID, errors='coerce')

If ID is column:

df.ID = pd.to_numeric(df.ID, errors='coerce')

but non numeric are converted to NaN, so all values are float.

For int need convert NaN to some value e.g. 0 and then cast to int:

df.ID = pd.to_numeric(df.ID, errors='coerce').fillna(0).astype(np.int64)

Sample:

df = pd.DataFrame({'ID':['4806105017087','4806105017087','CN414149']})
print (df)
              ID
0  4806105017087
1  4806105017087
2       CN414149

print (pd.to_numeric(df.ID, errors='coerce'))
0    4.806105e+12
1    4.806105e+12
2             NaN
Name: ID, dtype: float64

df.ID = pd.to_numeric(df.ID, errors='coerce').fillna(0).astype(np.int64)
print (df)
              ID
0  4806105017087
1  4806105017087
2              0

EDIT: If use pandas 0.25+ then is possible use integer_na:

df.ID = pd.to_numeric(df.ID, errors='coerce').astype('Int64')
print (df)
              ID
0  4806105017087
1  4806105017087
2            NaN

<?php

  $taxonomy     = 'product_cat';
  $orderby      = 'name';  
  $show_count   = 0;      // 1 for yes, 0 for no
  $pad_counts   = 0;      // 1 for yes, 0 for no
  $hierarchical = 1;      // 1 for yes, 0 for no  
  $title        = '';  
  $empty        = 0;

  $args = array(
         'taxonomy'     => $taxonomy,
         'orderby'      => $orderby,
         'show_count'   => $show_count,
         'pad_counts'   => $pad_counts,
         'hierarchical' => $hierarchical,
         'title_li'     => $title,
         'hide_empty'   => $empty
  );
 $all_categories = get_categories( $args );
 foreach ($all_categories as $cat) {
    if($cat->category_parent == 0) {
        $category_id = $cat->term_id;       
        echo '<br /><a href="'. get_term_link($cat->slug, 'product_cat') .'">'. $cat->name .'</a>';

        $args2 = array(
                'taxonomy'     => $taxonomy,
                'child_of'     => 0,
                'parent'       => $category_id,
                'orderby'      => $orderby,
                'show_count'   => $show_count,
                'pad_counts'   => $pad_counts,
                'hierarchical' => $hierarchical,
                'title_li'     => $title,
                'hide_empty'   => $empty
        );
        $sub_cats = get_categories( $args2 );
        if($sub_cats) {
            foreach($sub_cats as $sub_category) {
                echo  $sub_category->name ;
            }   
        }
    }       
}
?>

This will list all the top level categories and subcategories under them hierarchically. do not use the inner query if you just want to display the top level categories. Style it as you like.

• step 1 : bin/stop-all.sh
• step 2 : bin/hadoop namenode -format
• step 3 : bin/start-all.sh

If you want to open a windows file explorer, you should call explorer.exe

Call Shell("explorer.exe" & " " & "P:\Engineering", vbNormalFocus)

Equivalent syxntax

Shell "explorer.exe" & " " & "P:\Engineering", vbNormalFocus

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

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

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

For cross Python 2/3 compatibility, you can use input via the six library:

import six
six.moves.input( 'Press the <ENTER> key to continue...' )

If you don't mind using an external library, Lodash has lots of wonderful utilities

var people = [
  {
     "f_name":"john",
     "l_name":"doe",
     "sequence":"0",
     "title":"president",
     "url":"google.com",
     "color":"333333"
  },
  {
     "f_name":"michael",
     "l_name":"goodyear",
     "sequence":"0",
     "title":"general manager",
     "url":"google.com",
     "color":"333333"
  }
];


var sorted = _.sortBy(people, "l_name")

You can also sort by multiple properties. Here's a plunk showing it in action

Here is an example of how you can do it in Spring 4.0+

application.properties content:

some.key=yes,no,cancel

Java Code:

@Autowire
private Environment env;

...

String[] springRocks = env.getProperty("some.key", String[].class);

When attempting to troubleshoot this problem with svcutil, I received the error referred to in dblood's answer ("referenced type cannot be used since it does not match imported DataContract").

In my case the underlying cause seemed to be an enum type that had the DataContract attribute, but whose members were not marked with the EnumMember attribute. The problem class svcutil pointed at had a property with that enum type.

This would fit better as a comment to dblood's answer, but not enough rep for that...

Differences:

1. YAML, depending on how you use it, can be more readable than JSON
2. JSON is often faster and is probably still interoperable with more systems
3. It's possible to write a "good enough" JSON parser very quickly
4. Duplicate keys, which are potentially valid JSON, are definitely invalid YAML.
5. YAML has a ton of features, including comments and relational anchors. YAML syntax is accordingly quite complex, and can be hard to understand.
6. It is possible to write recursive structures in yaml: {a: &b [*b]}, which will loop infinitely in some converters. Even with circular detection, a "yaml bomb" is still possible (see xml bomb).
7. Because there are no references, it is impossible to serialize complex structures with object references in JSON. YAML serialization can therefore be more efficient.
8. In some coding environments, the use of YAML can allow an attacker to execute arbitrary code.

Observations:

1. Python programmers are generally big fans of YAML, because of the use of indentation, rather than bracketed syntax, to indicate levels.
2. Many programmers consider the attachment of "meaning" to indentation a poor choice.
3. If the data format will be leaving an application's environment, parsed within a UI, or sent in a messaging layer, JSON might be a better choice.
4. YAML can be used, directly, for complex tasks like grammar definitions, and is often a better choice than inventing a new language.

Try this one for Updating:

[HttpPost]
public ActionResult Edit(Models.MathClass mathClassModel)
{
    //get current entry from db (db is context)
    var item = db.Entry<Models.MathClass>(mathClassModel);

    //change item state to modified
    item.State = System.Data.Entity.EntityState.Modified;

    //load existing items for ManyToMany collection
    item.Collection(i => i.Students).Load();

    //clear Student items          
    mathClassModel.Students.Clear();

    //add Toner items
    foreach (var studentId in mathClassModel.SelectedStudents)
    {
        var student = db.Student.Find(int.Parse(studentId));
        mathClassModel.Students.Add(student);
    }                

    if (ModelState.IsValid)
    {
       db.SaveChanges();
       return RedirectToAction("Index");
    }

    return View(mathClassModel);
}

By default they are stored here:
%commonprogramfiles%/Microsoft Shared/web server extensions/12/Logs

Using %commonprogramfiles% make it works in non-english systems.

When you read in git tag man page:

One important aspect of git is it is distributed, and being distributed largely means there is no inherent "upstream" or "downstream" in the system.

, that simply means there is no absolute upstream repo or downstream repo.
Those notions are always relative between two repos and depends on the way data flows:

If "yourRepo" has declared "otherRepo" as a remote one, then:

• you are pulling from upstream "otherRepo" ("otherRepo" is "upstream from you", and you are "downstream for otherRepo").
• you are pushing to upstream ("otherRepo" is still "upstream", where the information now goes back to).

Note the "from" and "for": you are not just "downstream", you are "downstream from/for", hence the relative aspect.

The DVCS (Distributed Version Control System) twist is: you have no idea what downstream actually is, beside your own repo relative to the remote repos you have declared.

• you know what upstream is (the repos you are pulling from or pushing to)
• you don't know what downstream is made of (the other repos pulling from or pushing to your repo).

Basically:

In term of "flow of data", your repo is at the bottom ("downstream") of a flow coming from upstream repos ("pull from") and going back to (the same or other) upstream repos ("push to").

You can see an illustration in the git-rebase man page with the paragraph "RECOVERING FROM UPSTREAM REBASE":

It means you are pulling from an "upstream" repo where a rebase took place, and you (the "downstream" repo) is stuck with the consequence (lots of duplicate commits, because the branch rebased upstream recreated the commits of the same branch you have locally).

That is bad because for one "upstream" repo, there can be many downstream repos (i.e. repos pulling from the upstream one, with the rebased branch), all of them having potentially to deal with the duplicate commits.

Again, with the "flow of data" analogy, in a DVCS, one bad command "upstream" can have a "ripple effect" downstream.

Note: this is not limited to data.
It also applies to parameters, as git commands (like the "porcelain" ones) often call internally other git commands (the "plumbing" ones). See rev-parse man page:

Many git porcelainish commands take mixture of flags (i.e. parameters that begin with a dash '-') and parameters meant for the underlying git rev-list command they use internally and flags and parameters for the other commands they use downstream of git rev-list. This command is used to distinguish between them.

I have different solution:

SELECT AUTO_INCREMENT - 1 as CurrentId FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'dbname' AND TABLE_NAME = 'tablename'

Check for the file gradle.properties in your project root folder. If not there, create a new file with the name / copy the file from other project.

Open and check both the build.gradle file and confirm you have have any error in those files.

Then, Click on the File menu -> Sync project with Gradle Files.

Use:

subA.tick_params(labelsize=6)

Simple example

    public  class Simple
    {
        public int Propery { get; set; }
    }

Be aware that the third parameter (value) in the examples given above: the value is a constant (e.g. 'Z' or c(20,30)).

Defining the third parameter using values from the data frame itself can lead to confusion.

E.g. with a simple data frame such as this (using dplyr::data_frame):

tmp <- data_frame(a=1:10, b=sample(LETTERS[24:26], 10, replace=T))

This will create somthing like this:

       a     b
   (int) (chr)
1      1     X
2      2     Y
3      3     Y
4      4     X
5      5     Z

..etc

Now suppose you want wanted to do, was to multiply the values in column 'a' by 2, but only where column 'b' is "X". My immediate thought would be something like this:

with(tmp, replace(a, b=="X", a*2))

That will not provide the desired outcome, however. The a*2 will defined as a fixed vector rather than a reference to the 'a' column. The vector 'a*2' will thus be

[1]  2  4  6  8 10 12 14 16 18 20

at the start of the 'replace' operation. Thus, the first row where 'b' equals "X", the value in 'a' will be placed by 2. The second time, it will be replaced by 4, etc ... it will not be replaced by two-times-the-value-of-a in that particular row.

1. You can use Microsoft.Extensions.Configuration API with any .NET Core app, not only with ASP.NET Core app. Look into sample provided in the link, that shows how to read configs in the console app.

2. In most cases, the JSON source (read as .json file) is the most suitable config source.

   Note: don't be confused when someone says that config file should be appsettings.json. You can use any file name, that is suitable for you and file location may be different - there are no specific rules.

   But, as the real world is complicated, there are a lot of different configuration providers:

   • File formats (INI, JSON, and XML)
   • Command-line arguments
   • Environment variables

   and so on. You even could use/write a custom provider.

3. Actually, app.config configuration file was an XML file. So you can read settings from it using XML configuration provider (source on github, nuget link). But keep in mind, it will be used only as a configuration source - any logic how your app behaves should be implemented by you. Configuration Provider will not change 'settings' and set policies for your apps, but only read data from the file.

Please add these lines in text field delegate method to scroll up in iPad.

- (void)textFieldDidBeginEditing:(UITextField *)textField
{
    activeTextfield = textField;

    CGPoint pt;
    CGRect rc = [textField bounds];
    rc = [textField convertRect:rc toView:scrlView];
    pt = rc.origin;
    pt.x = 0;
    pt.y -= 100;

    [scrlView setContentOffset:pt animated:YES];

    scrlView.contentSize = CGSizeMake(scrlView.frame.size.width, button.frame.origin.y+button.frame.size.height + 8 + 370);
}

Since strings are objects and since all objects in Java are always stored only in the heap space, all strings are stored in the heap space. However, Java keeps strings created without using the new keyword in a special area of the heap space, which is called "string pool". Java keeps the strings created using the new keyword in the regular heap space.

The purpose of the string pool is to maintain a set of unique strings. Any time you create a new string without using the new keyword, Java checks whether the same string already exists in the string pool. If it does, Java returns a reference to the same String object and if it does not, Java creates a new String object in the string pool and returns its reference. So, for example, if you use the string "hello" twice in your code as shown below, you will get a reference to the same string. We can actually test this theory out by comparing two different reference variables using the == operator as shown in the following code:

String str1 = "hello";
String str2 = "hello";
System.out.println(str1 == str2); //prints true

String str3 = new String("hello");
String str4 = new String("hello");

System.out.println(str1 == str3); //prints false
System.out.println(str3 == str4); //prints false 

== operator is simply checks whether two references point to the same object or not and returns true if they do. In the above code, str2 gets the reference to the same String object which was created earlier. However, str3 and str4 get references to two entirely different String objects. That is why str1 == str2 returns true but str1 == str3 and str3 == str4 return false . In fact, when you do new String("hello"); two String objects are created instead of just one if this is the first time the string "hello" is used in the anywhere in program - one in the string pool because of the use of a quoted string, and one in the regular heap space because of the use of new keyword.

String pooling is Java's way of saving program memory by avoiding the creation of multiple String objects containing the same value. It is possible to get a string from the string pool for a string created using the new keyword by using String's intern method. It is called "interning" of string objects. For example,

String str1 = "hello";
String str2 = new String("hello");
String str3 = str2.intern(); //get an interned string obj

System.out.println(str1 == str2); //prints false
System.out.println(str1 == str3); //prints true

OCP Java SE 11 Programmer, Deshmukh

There's a nice article which may answer your question /only it prints the paths instead of collecting them/. Please note that you can experiment with the C++/Python samples in the online IDE.

http://www.geeksforgeeks.org/find-paths-given-source-destination/

Simply use

var xmlString = '<?xml version="1.0" ?><root />';
var xml = jQuery.parseXML(xml);

It's jQuery.parseXML, so no need to worry about cross-browser tricks. Use jQuery as like HTML, it's using the native XML engine.

int i, x;

i = 2;
x = ++i;
// now i = 3, x = 3

i = 2;
x = i++; 
// now i = 3, x = 2

'Post' means after - that is, the increment is done after the variable is read. 'Pre' means before - so the variable value is incremented first, then used in the expression.

// Create Customer class as follows:
export default class Customer {}

// Import the class 
// no need for .js extension in path cos gets inferred automatically
import Customer from './path/to/Customer'; 
// or
const Customer = require('./path/to/Customer') 

// Use the class
var customer = new Customer();
var name = customer.getName();

If you want d1 to have priority in the conflicts, do:

d3 = d2.copy()
d3.update(d1)

Otherwise, reverse d2 and d1.

select to_char(tran_datetime,'HH24') from test;

TO_CHAR(tran_datetime,'HH24')
------------------
16      

Internally, the rm command must test for file existence anyway,
so why add another test? Just issue

rm filename

and it will be gone after that, whether it was there or not.
Use rm -f is you don't want any messages about non-existent files.

If you need to take some action if the file does NOT exist, then you must test for that yourself. Based on your example code, this is not the case in this instance.

textLabel.lineBreakMode = UILineBreakModeWordWrap;
textLabel.numberOfLines = 0;

The solution above does't work in my case. I'm doing like this:

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    // ...

    CGSize size = [str sizeWithFont:[UIFont fontWithName:@"Georgia-Bold" size:18.0] constrainedToSize:CGSizeMake(240.0, 480.0) lineBreakMode:UILineBreakModeWordWrap];
    return size.height + 20;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    if (cell == nil)
    {
        // ...
        cell.textLabel.lineBreakMode = UILineBreakModeWordWrap;
        cell.textLabel.numberOfLines = 0;
        cell.textLabel.font = [UIFont fontWithName:@"Georgia-Bold" size:18.0];
    }

    // ...

    UILabel *textLabel = [cell textLabel];
    CGSize size = [text sizeWithFont:[UIFont fontWithName:@"Georgia-Bold" size:18.0]
                                        constrainedToSize:CGSizeMake(240.0, 480.0)
                                            lineBreakMode:UILineBreakModeWordWrap];

    cell.textLabel.frame = CGRectMake(0, 0, size.width + 20, size.height + 20);

    //...
}

I solved width creating canvas and calculating size of it. its important that input value and canvas share same font features (family, size, weight...)

import calculateTextWidth from "calculate-text-width";

/*
 requires two props "value" and "font"
  - defaultFont: normal 500 14px sans-serif 
 */
const defaultText = 'calculate my width'
const textFont = 'normal 500 14px sans-serif'
const calculatedWidth = calculateTextWidth(defaultText, textFont)
console.log(calculatedWidth) // 114.37890625

GitHub: https://github.com/ozluy/calculate-text-width CodeSandbox: https://codesandbox.io/s/calculate-text-width-okr46

Sure, just add & after the command:

read_cfg cfgA &
read_cfg cfgB &
read_cfg cfgC &
wait

all those jobs will then run in the background simultaneously. The optional wait command will then wait for all the jobs to finish.

Each command will run in a separate process, so it's technically not "multithreading", but I believe it solves your problem.

I was getting this error as well.

I was using:

import BrowserRouter from 'react-router-dom';

Fix was doing this, instead:

import { BrowserRouter } from 'react-router-dom';

python -m timeit -h

The comparison needs to be evaluated fully inside EL ${ ... }, not outside.

<c:if test="${values.type eq 'object'}">

As to the docs, those ${} things are not JSTL, but EL (Expression Language) which is a whole subject at its own. JSTL (as every other JSP taglib) is just utilizing it. You can find some more EL examples here.

<c:if test="#{bean.booleanValue}" />
<c:if test="#{bean.intValue gt 10}" />
<c:if test="#{bean.objectValue eq null}" />
<c:if test="#{bean.stringValue ne 'someValue'}" />
<c:if test="#{not empty bean.collectionValue}" />
<c:if test="#{not bean.booleanValue and bean.intValue ne 0}" />
<c:if test="#{bean.enumValue eq 'ONE' or bean.enumValue eq 'TWO'}" />

See also:

• Our EL wiki page

By the way, unrelated to the concrete problem, if I guess your intent right, you could also just call Object#getClass() and then Class#getSimpleName() instead of adding a custom getter.

<c:forEach items="${list}" var="value">
    <c:if test="${value['class'].simpleName eq 'Object'}">
        <!-- code here -->
    </c:if>
</c:forEeach>

See also:

• instanceof check in EL expression language

Global tools can be installed in the default directory or in a specific location. The default directories are:

• Linux/macOS ---> $HOME/.dotnet/tools

• Windows ---> %USERPROFILE%\.dotnet\tools

If you're trying to run a global tool, check that the PATH environment variable on your machine contains the path where you installed the global tool and that the executable is in that path.

Troubleshoot .NET Core tool usage issues

on django 1.6 python 3.3

client

$.ajax({
    url: '/urll/',
    type: 'POST',
    contentType: 'application/json; charset=utf-8',
    data: JSON.stringify(json_object),
    dataType: 'json',
    success: function(result) {
        alert(result.Result);
    }
});

server

def urll(request):

if request.is_ajax():
    if request.method == 'POST':
        print ('Raw Data:', request.body) 

        print ('type(request.body):', type(request.body)) # this type is bytes

        print(json.loads(request.body.decode("utf-8")))

dat <- data.frame(x1 = c(1,2,3, NA, 5), x2 = c(100, NA, 300, 400, 500))

na.omit(dat)
  x1  x2
1  1 100
3  3 300
5  5 500

Follow the below steps:

1.Goto Help -> Install new Software
2.Give address http://download.eclipse.org/releases/oxygen and name as your choice.
3.Search for Java EE and choose 1.Eclipse Java EE Developer Tools 
4.Search for JST and choose 2.JST Server Adapters 3.JST Server Adapters 
5.Click next and accept the license agreement.

Find the server option in the window-->preferences and add server as you need

In my case, the NuGet package "Microsoft.EntityFrameworkCore.Tools" was missing

mysql> SHOW ENGINE INNODB STATUS;

But in my case only this way could help:
1. Make backup of current DB
2. Drop DB (not all tables, but DB)
3. Create DB (check that you still have previleges)
4. Restore DB from backup

if (date.isBefore(endDate) 
 && date.isAfter(startDate) 
 || (date.isSame(startDate) || date.isSame(endDate))

is logically the same as

if (!(date.isBefore(startDate) || date.isAfter(endDate)))

which saves you a couple of lines of code and (in some cases) method calls.

Might be easier than pulling in a whole plugin if you only want to do this once or twice.

docker-compose run myapp sh should do the deal.

There is some confusion with up/run, but docker-compose run docs have great explanation: https://docs.docker.com/compose/reference/run

It's just the syntax. '<' is a binary operation, and most languages don't make it transitive. They could have made it like the way you say, but then somebody would be asking why you can't do other operations in trinary as well. "if (12 < x != 5)"?

Syntax is always a trade-off between complexity, expressiveness and readability. Different language designers make different choices. For instance, SQL has "x BETWEEN y AND z", where x, y, and z can individually or all be columns, constants, or bound variables. And I'm happy to use it in SQL, and I'm equally happy not to worry about why it's not in Java.

Make sure the physical available memory is more then VM defined min/max memory.

I am working on an angular js app, andhavecome across a similar issue. What i did was display the image from the db, then created a button to remove or keep the current image. If the user decided to keep the current image, i changed the ng-submit attribute to another function whihc doesnt require image validation, and updated the record in the db without touching the original image path name. The remove image function also changed the ng-submit attribute value back to a function that submits the form and includes image validation and upload. Also a bit of javascript to slide the into view to upload a new image.

Try using this code:

var milisegundos = parseInt(data.replace("/Date(", "").replace(")/", ""));
var newDate = new Date(milisegundos).toLocaleDateString("en-UE");

Enjoy it!

With Java 8 Streams:

Stream.of(object).collect(Collectors.toList())

or if you need a set:

Stream.of(object).collect(Collectors.toSet())

simply use the Out-File cmd but DON'T forget to give an encoding type: -Encoding UTF8

so use it so:

$log | Out-File -Append C:\as\whatever.csv -Encoding UTF8

-Append is required if you want to write in the file more then once.

May be useful for someone.. In Run as if you are getting only java application (No spring bootapp).. then probably you need to install "Spring Tools (aka Spring IDE and Spring Tool Suite)" through Eclipse market place. After successful installation and restart of Eclipse.. now you can see in Run as "Spring Boot app".

That means a Class with a type of anything (unknown).

You should read java generics tutorial to get to understand it better

unplug not necessary,just uninstall your port,restart and install driver again.you will see arduino COM port under the LPT & PORT section.

Some useful extensions:

extension String {
    func substring(from: Int, to: Int) -> String {
        let start = index(startIndex, offsetBy: from)
        let end = index(start, offsetBy: to - from)
        return String(self[start ..< end])
    }

    func substring(range: NSRange) -> String {
        return substring(from: range.lowerBound, to: range.upperBound)
    }
}

Whenever these plugins and options aren't available I just use my good ol friend notepad. Paste content into notepad where it won't accept the extra formatting and then copy it right back out. Sort of hacky but oh well. It works!

One octet is 8 bits. Content-length is the number of octets that the message body represents.

Shortly: gene_name[x] is a mutable object so it cannot be hashed. To use an object as a key in a dictionary, python needs to use its hash value, and that's why you get an error.

Further explanation:

Mutable objects are objects which value can be changed. For example, list is a mutable object, since you can append to it. int is an immutable object, because you can't change it. When you do:

a = 5;
a = 3;

You don't change the value of a, you create a new object and make a point to its value.

Mutable objects cannot be hashed. See this answer.

To solve your problem, you should use immutable objects as keys in your dictionary. For example: tuple, string, int.

I think you could use Spring's

@Lazy

annotation on one of the autowired fields to break circular dependency.

I'm not sure if this works/exists in mentioned Spring version.

You shouldn't be using the BinaryFormatter for this - that's for serializing .Net types to a binary file so they can be read back again as .Net types.

If it's stored in the database, hopefully, as a varbinary - then all you need to do is get the byte array from that (that will depend on your data access technology - EF and Linq to Sql, for example, will create a mapping that makes it trivial to get a byte array) and then write it to the file as you do in your last line of code.

With any luck - I'm hoping that fileContent here is the byte array? In which case you can just do

System.IO.File.WriteAllBytes("hello.pdf", fileContent);

This Worked For Me on Linux (x18) ☑ Hope It Will Work For You Aswell

sudo chown hp /dev/kvm

Don't use Date, use Calendar:

// Beware: months are zero-based and no out of range errors are reported
Calendar date = new GregorianCalendar(2012, 9, 5);
int year = date.get(Calendar.YEAR);  // 2012
int month = date.get(Calendar.MONTH);  // 9 - October!!!
int day = date.get(Calendar.DAY_OF_MONTH);  // 5

It supports time as well:

Calendar dateTime = new GregorianCalendar(2012, 3, 4, 15, 16, 17);
int hour = dateTime.get(Calendar.HOUR_OF_DAY);  // 15
int minute = dateTime.get(Calendar.MINUTE);  // 16
int second = dateTime.get(Calendar.SECOND);  // 17

It needs to be done as following:

    getScrollView().post(new Runnable() {

        @Override
        public void run() {
            getScrollView().fullScroll(ScrollView.FOCUS_DOWN);
        }
    });

This way the view is first updated and then scrolls to the "new" bottom.

When you say [:-1] you are stripping the last element. Instead of slicing the string, you can apply startswith and endswith on the string object itself like this

if str1.startswith('"') and str1.endswith('"'):

So the whole program becomes like this

>>> str1 = '"xxx"'
>>> if str1.startswith('"') and str1.endswith('"'):
...     print "hi"
>>> else:
...     print "condition fails"
...
hi

Even simpler, with a conditional expression, like this

>>> print("hi" if str1.startswith('"') and str1.endswith('"') else "fails")
hi

if "ABCD" in "xxxxABCDyyyy":
    # whatever

In Java we don't compare string as you are doing above... Here is String comparison...

    if (gender.equalsIgnoreCase("Male")) {
        salutation = "Mr.";
    } else if (gender.equalsIgnoreCase("Female")) {
        salutation = "Ms.";
    }

Live Demo

You can achieve the effect using a container element, then just set the containing elements margin to 0 auto and it will be centered.

Markup

<div id="header">
    <div id="headerContent">
        Header text
    </div>
</div>

CSS

#header{
    width:100%; 
    background: url(yourimage);
}
#headerContent{
    margin: 0 auto; width: 960px;
}

Python 3:

import urllib.request

htmlsource = urllib.request.FancyURLopener({"http":"http://127.0.0.1:8080"}).open(url).read().decode("utf-8")

PhpMyAdmin has a Import wizard that lets you import a MSSQL file type too.

See http://dev.mysql.com/doc/refman/5.1/en/sql-mode.html for the types of DB scripts it supports.

rmdir /s dirname

In general, one doesn't expand out log(a + b); you just deal with it as is. That said, there are occasionally circumstances where it makes sense to use the following identity:

log(a + b) = log(a * (1 + b/a)) = log a + log(1 + b/a)

(In fact, this identity is often used when implementing log in math libraries).

Just delete /etc/ImageMagick/policy.xml file. E.g.

rm /etc/<ImageMagick_PATH>/policy.xml

For ImageMagick 6, it's:

sudo rm /etc/ImageMagick-6/policy.xml

From Python you can do directly using below code

import subprocess
proc = subprocess.check_output('C:\Windows\System32\cmd.exe /k %windir%\System32\\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f' ,stderr=subprocess.STDOUT,shell=True)
    print(str(proc))

in first parameter just executed User Account setting you may customize with yours.

we are using MSMQ in our system, this error message came. The reason was our queue was full and we did not handle the error logging mechanism properly so we were getting the above exception instead of msmq ful. We cleared the messages then it is working fine.

Instead of set mouse=a use set mouse=r in .vimrc

I can't get that constructor to work either. This however seems to work:

# $temp = Get-ResourceFiles
$resourceFiles = New-Object System.Collections.ArrayList($null)
$resourceFiles.AddRange($temp)

You can also pass an integer in the constructor to set an initial capacity.

What do you mean when you say you want to enumerate the files? Why can't you just filter the wanted values into a fresh array?

Edit:

It seems that you can use the array constructor like this:

$resourceFiles = New-Object System.Collections.ArrayList(,$someArray)

Note the comma. I believe what is happening is that when you call a .NET method, you always pass parameters as an array. PowerShell unpacks that array and passes it to the method as separate parameters. In this case, we don't want PowerShell to unpack the array; we want to pass the array as a single unit. Now, the comma operator creates arrays. So PowerShell unpacks the array, then we create the array again with the comma operator. I think that is what is going on.

I would like to post rather a Designer approach to this, this will keep design separate from your business logic:

Step 1. Create new style in (res->values->styles.xml) : Basically it is copy of your overall scheme with different parent - parent="Theme.AppCompat.Light.NoActionBar"

<!-- custom application theme. -->
    <style name="MarkitTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimary</item>
        <item name="colorAccent">@color/colorAccent</item>

        <item name="android:windowNoTitle">true</item>
    </style>

Step 2: In your AndroidManifest.xml, add this theme to the activity you want in: e.g. I want my main activity without action-bar so add this like below:

<activity android:name=".MainActivity"
            android:theme="@style/MarkitTheme">

This is the best solution for me after trying a lot of things.

a.shape is just a limited version of np.info(). Check this out:

import numpy as np
a = np.array([[1,2],[1,2]])
np.info(a)

Out

class:  ndarray
shape:  (2, 2)
strides:  (8, 4)
itemsize:  4
aligned:  True
contiguous:  True
fortran:  False
data pointer: 0x27509cf0560
byteorder:  little
byteswap:  False
type: int32

In error situations, I wanted to return a specific error details class, in whatever format the client requested instead of the happy path object.

I want to have my controller methods return the domain specific happy path object and to throw an exception otherwise.

The problem I had was that the HttpResponseException constructors do not allow domain objects.

This is what I eventually came up with

public ProviderCollection GetProviders(string providerName)
{
   try
   {
      return _providerPresenter.GetProviders(providerName);
   }
   catch (BadInputValidationException badInputValidationException)
   {
     throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.BadRequest,
                                          badInputValidationException.Result));
   }
}

Result is a class that contains error details, while ProviderCollection is my happy path result.

See the documentation on ?merge, which states:

By default the data frames are merged on the columns with names they both have, 
 but separate specifications of the columns can be given by by.x and by.y.

This clearly implies that merge will merge data frames based on more than one column. From the final example given in the documentation:

x <- data.frame(k1=c(NA,NA,3,4,5), k2=c(1,NA,NA,4,5), data=1:5)
y <- data.frame(k1=c(NA,2,NA,4,5), k2=c(NA,NA,3,4,5), data=1:5)
merge(x, y, by=c("k1","k2")) # NA's match

This example was meant to demonstrate the use of incomparables, but it illustrates merging using multiple columns as well. You can also specify separate columns in each of x and y using by.x and by.y.

your have to comment that line in ~/.bashrc:

#export PATH=/home/jolth/miniconda3/bin:$PATH

and run:

source ~/.bashrc

Now that mobile is over 70% from the internet market you can create something smart and responsive to do that.

You can create this very easy with only css, use a overflow-x:scroll for a container and a overflow-y:scroll for another container. You can easily position the container elements with width:100vw and height:100vh.

Middle click on the example to test it. Works best on mobile because you dont see the scroll bars.

body{max-width:100%}_x000D_
*{box-sizing:border-box;}_x000D_
.container{background:#ddd;overflow-y:scroll;width:500px;max-height:100vh;}_x000D_
.header{background: pink;}_x000D_
.body{background: teal;padding:20px;min-width: 100%;overflow:scroll;overflow-y:hidden;min-height:300px;}_x000D_
.body >div{min-width:800px;}

<body>_x000D_
  <div class="container">_x000D_
    <div class="header">_x000D_
       Button 1 > Button 2 > Button 3_x000D_
    </div>_x000D_
    <div class="body">_x000D_
      <div>_x000D_
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum_x000D_
<br><br>_x000D_
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum_x000D_
<br><br>_x000D_
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum<br><br>_x000D_
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum<br><br>_x000D_
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum<br><br>_x000D_
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum<br><br>_x000D_
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum<br><br>_x000D_
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum_x000D_
     </div>_x000D_
    </div>_x000D_
  </div>_x000D_
</body>

To solve this problem in Excel, usually I would just type in the literal row number of the cell above, e.g., if I'm typing in Cell A7, I would use the formula =A6. Then if I copied that formula to other cells, they would also use the row of the previous cell.

Another option is to use Indirect(), which resolves the literal statement inside to be a formula. You could use something like:

=INDIRECT("A" & ROW() - 1)

The above formula will resolve to the value of the cell in column A and the row that is one less than that of the cell which contains the formula.

It's a pity that both of the answers analyze the problem but didn't give a direct answer. Let's see the code.

Z = np.array([1.0, 1.0, 1.0, 1.0])  

def func(TempLake, Z):
    A = TempLake
    B = Z
    return A * B
Nlayers = Z.size
N = 3
TempLake = np.zeros((N+1, Nlayers))
kOUT = np.zeros(N + 1)

for i in xrange(N):
    # store the i-th result of
    # function "func" in i-th item in kOUT
    kOUT[i] = func(TempLake[i], Z)

The error shows that you set the ith item of kOUT(dtype:int) into an array. Here every item in kOUT is an int, can't directly assign to another datatype. Hence you should declare the data type of kOUT when you create it. For example, like:

Change the statement below:

kOUT = np.zeros(N + 1)

into:

kOUT = np.zeros(N + 1, dtype=object)

or:

kOUT = np.zeros((N + 1, N + 1))

All code:

import numpy as np
Z = np.array([1.0, 1.0, 1.0, 1.0])

def func(TempLake, Z):
    A = TempLake
    B = Z
    return A * B

Nlayers = Z.size
N = 3
TempLake = np.zeros((N + 1, Nlayers))

kOUT = np.zeros(N + 1, dtype=object)
for i in xrange(N):
    kOUT[i] = func(TempLake[i], Z)

Hope it can help you.

My 2 cents:

$result = $db->query('select * from table limit 1');
$fields = array_keys($result->fetch(PDO::FETCH_ASSOC));

And you will get the column names as an array in the var $fields.

Take the contents of the file, split it by newline into a tuple. Then, access your tuple's line number, join your result tuple, and overwrite to the file.

There is no need to keep calling .ToString() as getValue is already a string.

Aside that, this line could possibly be your problem:

 string getValue = cmd.ExecuteScalar().ToString();  

If there are no rows .ExecuteScalar will return null so you need to do some checking.

For instance:

var firstColumn = cmd.ExecuteScalar();

if (firstColumn != null) {
    result = firstColumn.ToString();
}

Here it is some code:

var configuration = WebConfigurationManager.OpenWebConfiguration("~");
var section = (ConnectionStringsSection)configuration.GetSection("connectionStrings");
section.ConnectionStrings["MyConnectionString"].ConnectionString = "Data Source=...";
configuration.Save();

See more examples in this article, you may need to take a look to impersonation.

What you're missing: Zero is a value

It should suffice to say whether bcrypt or SHA-512 (in the context of an appropriate algorithm like PBKDF2) is good enough. And the answer is yes, either algorithm is secure enough that a breach will occur through an implementation flaw, not cryptanalysis.

If you insist on knowing which is "better", SHA-512 has had in-depth reviews by NIST and others. It's good, but flaws have been recognized that, while not exploitable now, have led to the the SHA-3 competition for new hash algorithms. Also, keep in mind that the study of hash algorithms is "newer" than that of ciphers, and cryptographers are still learning about them.

Even though bcrypt as a whole hasn't had as much scrutiny as Blowfish itself, I believe that being based on a cipher with a well-understood structure gives it some inherent security that hash-based authentication lacks. Also, it is easier to use common GPUs as a tool for attacking SHA-2–based hashes; because of its memory requirements, optimizing bcrypt requires more specialized hardware like FPGA with some on-board RAM.

Note: bcrypt is an algorithm that uses Blowfish internally. It is not an encryption algorithm itself. It is used to irreversibly obscure passwords, just as hash functions are used to do a "one-way hash".

Cryptographic hash algorithms are designed to be impossible to reverse. In other words, given only the output of a hash function, it should take "forever" to find a message that will produce the same hash output. In fact, it should be computationally infeasible to find any two messages that produce the same hash value. Unlike a cipher, hash functions aren't parameterized with a key; the same input will always produce the same output.

If someone provides a password that hashes to the value stored in the password table, they are authenticated. In particular, because of the irreversibility of the hash function, it's assumed that the user isn't an attacker that got hold of the hash and reversed it to find a working password.

Now consider bcrypt. It uses Blowfish to encrypt a magic string, using a key "derived" from the password. Later, when a user enters a password, the key is derived again, and if the ciphertext produced by encrypting with that key matches the stored ciphertext, the user is authenticated. The ciphertext is stored in the "password" table, but the derived key is never stored.

In order to break the cryptography here, an attacker would have to recover the key from the ciphertext. This is called a "known-plaintext" attack, since the attack knows the magic string that has been encrypted, but not the key used. Blowfish has been studied extensively, and no attacks are yet known that would allow an attacker to find the key with a single known plaintext.

So, just like irreversible algorithms based cryptographic digests, bcrypt produces an irreversible output, from a password, salt, and cost factor. Its strength lies in Blowfish's resistance to known plaintext attacks, which is analogous to a "first pre-image attack" on a digest algorithm. Since it can be used in place of a hash algorithm to protect passwords, bcrypt is confusingly referred to as a "hash" algorithm itself.

Assuming that rainbow tables have been thwarted by proper use of salt, any truly irreversible function reduces the attacker to trial-and-error. And the rate that the attacker can make trials is determined by the speed of that irreversible "hash" algorithm. If a single iteration of a hash function is used, an attacker can make millions of trials per second using equipment that costs on the order of $1000, testing all passwords up to 8 characters long in a few months.

If however, the digest output is "fed back" thousands of times, it will take hundreds of years to test the same set of passwords on that hardware. Bcrypt achieves the same "key strengthening" effect by iterating inside its key derivation routine, and a proper hash-based method like PBKDF2 does the same thing; in this respect, the two methods are similar.

So, my recommendation of bcrypt stems from the assumptions 1) that a Blowfish has had a similar level of scrutiny as the SHA-2 family of hash functions, and 2) that cryptanalytic methods for ciphers are better developed than those for hash functions.

From official documentation. Maybe you can use it in your case.

When you need equal height, add .h-100 to the cards.

<div class="row row-cols-1 row-cols-md-3 g-4">
  <div class="col">
   <div class="card h-100">
     <div>.....</div>
  </div>
  <div class="col">
   <div class="card h-100">
     <div>.....</div>
  </div>

View page

  <a href="<?php echo base_url();?>products_controller/delete_controller/<?php echo $product_id;?>"><?php echo $name; ?></a>

controller page

  function delete_controller( $product_id) {

         echo $product_id;
         //add your logic

  }

I was struggling with the same issue and didn't work for me using this

{{dateObj | date:'ydM'}}

So, I've tried a workaround, not the best solution but it worked:

{{dateObj | date:'d'}}/{{dateObj | date:'M'}}/{{dateObj | date:'y'}}

I can always create a custom pipe.

The message that you are getting is not for the default Exception of Python:

For a fresh python list, IndexError is thrown only on index not being in range (even docs say so).

>>> l = []
>>> l[1]
IndexError: list index out of range

If we try passing multiple items to list, or some other value, we get the TypeError:

>>> l[1, 2]
TypeError: list indices must be integers, not tuple

>>> l[float('NaN')]
TypeError: list indices must be integers, not float

However, here, you seem to be using matplotlib that internally uses numpy for handling arrays. On digging deeper through the codebase for numpy, we see:

static NPY_INLINE npy_intp
unpack_tuple(PyTupleObject *index, PyObject **result, npy_intp result_n)
{
    npy_intp n, i;
    n = PyTuple_GET_SIZE(index);
    if (n > result_n) {
        PyErr_SetString(PyExc_IndexError,
                        "too many indices for array");
        return -1;
    }
    for (i = 0; i < n; i++) {
        result[i] = PyTuple_GET_ITEM(index, i);
        Py_INCREF(result[i]);
    }
    return n;
}

where, the unpack method will throw an error if it the size of the index is greater than that of the results.

So, Unlike Python which raises a TypeError on incorrect Indexes, Numpy raises the IndexError because it supports multidimensional arrays.

I think you want something along the line of:

Parent:

<Editor name={this.state.fileData} />

Editor:

var Editor = React.createClass({
  displayName: 'Editor',
  propTypes: {
    name: React.PropTypes.string.isRequired
  },
  getInitialState: function() { 
    return {
      value: this.props.name
    };
  },
  handleChange: function(event) {
    this.setState({value: event.target.value});
  },
  render: function() {
    return (
      <form id="noter-save-form" method="POST">
        <textarea id="noter-text-area" name="textarea" value={this.state.value} onChange={this.handleChange} />
        <input type="submit" value="Save" />
      </form>
    );
  }
});

This is basically a direct copy of the example provided on https://facebook.github.io/react/docs/forms.html

Update for React 16.8:

import React, { useState } from 'react';

const Editor = (props) => {
    const [value, setValue] = useState(props.name);

    const handleChange = (event) => {
        setValue(event.target.value);
    };

    return (
        <form id="noter-save-form" method="POST">
            <textarea id="noter-text-area" name="textarea" value={value} onChange={handleChange} />
            <input type="submit" value="Save" />
        </form>
    );
}

Editor.propTypes = {
    name: PropTypes.string.isRequired
};

Removing and adding DOM element is slower than modification of existing one.

If your option sets have same length, you may do something like this:

$('#my-select option')
.each(function(index) {
    $(this).text('someNewText').val('someNewValue');
});

In case your new option set has different length, you may delete/add empty options you really need, using some technique described above.

You can just construct a list from the range object:

my_list = list(range(1, 1001))

This is how you do it with generators in python2.x as well. Typically speaking, you probably don't need a list though since you can come by the value of my_list[i] more efficiently (i + 1), and if you just need to iterate over it, you can just fall back on range.

Also note that on python2.x, xrange is still indexable¹. This means that range on python3.x also has the same property²

^{1print xrange(30)[12] works for python2.x}

^{2The analogous statement to 1 in python3.x is print(range(30)[12]) and that works also.}

Updated Answer

Trying to open multiple panels of a collapse control that is setup as an accordion i.e. with the data-parent attribute set, can prove quite problematic and buggy (see this question on multiple panels open after programmatically opening a panel)

Instead, the best approach would be to:

1. Allow each panel to toggle individually
2. Then, enforce the accordion behavior manually where appropriate.

To allow each panel to toggle individually, on the data-toggle="collapse" element, set the data-target attribute to the .collapse panel ID selector (instead of setting the data-parent attribute to the parent control. You can read more about this in the question Modify Twitter Bootstrap collapse plugin to keep accordions open.

Roughly, each panel should look like this:

<div class="panel panel-default">
   <div class="panel-heading">
         <h4 class="panel-title"
             data-toggle="collapse" 
             data-target="#collapseOne">
             Collapsible Group Item #1
         </h4>
    </div>
    <div id="collapseOne" 
         class="panel-collapse collapse">
        <div class="panel-body"></div>
    </div>
</div>

To manually enforce the accordion behavior, you can create a handler for the collapse show event which occurs just before any panels are displayed. Use this to ensure any other open panels are closed before the selected one is shown (see this answer to multiple panels open). You'll also only want the code to execute when the panels are active. To do all that, add the following code:

$('#accordion').on('show.bs.collapse', function () {
    if (active) $('#accordion .in').collapse('hide');
});

Then use show and hide to toggle the visibility of each of the panels and data-toggle to enable and disable the controls.

$('#collapse-init').click(function () {
    if (active) {
        active = false;
        $('.panel-collapse').collapse('show');
        $('.panel-title').attr('data-toggle', '');
        $(this).text('Enable accordion behavior');
    } else {
        active = true;
        $('.panel-collapse').collapse('hide');
        $('.panel-title').attr('data-toggle', 'collapse');
        $(this).text('Disable accordion behavior');
    }
});

Working demo in jsFiddle

This is the way to iterate on this array:

foreach($hotels as $row) {
       foreach($row['rooms'] as $k) {
             echo $k['boards']['board_id'];
             echo $k['boards']['price'];
       }
}

You want to iterate on the hotels and the rooms (the ones with numeric indexes), because those seem to be the "collections" in this case. The other arrays only hold and group properties.

Static methods use the class as the object for locking, which is Utils.class for your example. So yes, it is OK.

Try this

$("#datepicker").datepicker({_x000D_
    format: "yyyy",_x000D_
    viewMode: "years", _x000D_
    minViewMode: "years"_x000D_
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.6.4/js/bootstrap-datepicker.js"></script>_x000D_
<link href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.6.4/css/bootstrap-datepicker.css" rel="stylesheet"/>_x000D_
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>_x000D_
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
_x000D_
_x000D_
<input type="text" id="datepicker" />

$("#datepicker").datepicker( {
    format: " yyyy", // Notice the Extra space at the beginning
    viewMode: "years", 
    minViewMode: "years"
});

Area.replace(new RegExp(/\//g), '-') replaces multiple forward slashes (/) with -

put below code in button click event

Intent ImageIntent = new Intent(Intent.ACTION_PICK,               
MediaStore.Images.Media.EXTERNAL_CONTENT_URI); //implicit intent
UploadImage.this.startActivityForResult(ImageIntent,99);

put below code in startActivityforResult event

Uri ImagePathAndName = data.getData();
imgpicture.setImageURI(ImagePathAndName);

select
  username,
  osuser,
  terminal,
  utl_inaddr.get_host_address(terminal) IP_ADDRESS
from
  v$session
where
  username is not null
order by
  username,
  osuser;

You use ComponentScan to scan multiple packages using

@ComponentScan({"com.my.package.first","com.my.package.second"})

Template/HTML File (component.ts)

<select>
 <option *ngFor="let v of values" [value]="v" (ngModelChange)="onChange($event)">  
    {{v.name}}
  </option>
</select>

Typescript File (component.ts)

values = [
  { id: 3432, name: "Recent" },
  { id: 3442, name: "Most Popular" },
  { id: 3352, name: "Rating" }
];

onChange(cityEvent){
    console.log(cityEvent); // It will display the select city data
}

(ngModelChange) is the @Output of the ngModel directive. It fires when the model changes. You cannot use this event without the ngModel directive

You can simplify Joe Kington's code using the axparameter of figure.colorbar() with a list of axes. From the documentation:

ax

None | parent axes object(s) from which space for a new colorbar axes will be stolen. If a list of axes is given they will all be resized to make room for the colorbar axes.

import numpy as np
import matplotlib.pyplot as plt

fig, axes = plt.subplots(nrows=2, ncols=2)
for ax in axes.flat:
    im = ax.imshow(np.random.random((10,10)), vmin=0, vmax=1)

fig.colorbar(im, ax=axes.ravel().tolist())

plt.show()

I'm resurrecting this because I was researching a non-JavaScript way to do this. I wasn't into the key handlers, and the CSS positioning stuff was causing tab ordering to break since CSS repositioning doesn't change tab order.

My solution is based on the response at https://stackoverflow.com/a/9491141.

The solution source is below. tabindex is used to correct tab behaviour of the hidden button, as well as aria-hidden to avoid having the button read out by screen readers / identified by assistive devices.

<form method="post" action="">
  <button type="submit" name="useraction" value="2nd" class="default-button-handler" aria-hidden="true" tabindex="-1"></button>
  <div class="form-group">
    <label for="test-input">Focus into this input: </label>
    <input type="text" id="test-input" class="form-control" name="test-input" placeholder="Focus in here and press enter / go" />
  </div>

1st button in DOM 2nd button in DOM 3rd button in DOM

Essential CSS for this solution:

.default-button-handler {
  width: 0;
  height: 0;
  padding: 0;
  border: 0;
  margin: 0;
}

I did something similar to the above and then banged my head against the wall for a few hours because it did not work inside a RelativeLayout. I ended up with the following code:

package com.example;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.ImageView;

public class ScaledImageView extends ImageView {
    public ScaledImageView(final Context context, final AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    protected void onMeasure(final int widthMeasureSpec, final int heightMeasureSpec) {
        final Drawable d = getDrawable();

        if (d != null) {
            int width;
            int height;
            if (MeasureSpec.getMode(heightMeasureSpec) == MeasureSpec.EXACTLY) {
                height = MeasureSpec.getSize(heightMeasureSpec);
                width = (int) Math.ceil(height * (float) d.getIntrinsicWidth() / d.getIntrinsicHeight());
            } else {
                width = MeasureSpec.getSize(widthMeasureSpec);
                height = (int) Math.ceil(width * (float) d.getIntrinsicHeight() / d.getIntrinsicWidth());
            }
            setMeasuredDimension(width, height);
        } else {
            super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        }
    }
}

And then to prevent RelativeLayout from ignoring the measured dimension I did this:

    <FrameLayout
        android:id="@+id/image_frame"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/something">

        <com.example.ScaledImageView
            android:id="@+id/image"
            android:layout_width="wrap_content"
            android:layout_height="150dp"/>
    </FrameLayout>

Try C# 7.0

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

Thanks to both sipwiz and MrEvil. We developed a PHP script that will parse the URL that the user enters and paste www to the top of it. (e.g. if the customer enters kiragiannis.com, then it will redirect to www.kiragiannis.com). So our customer point their root (e.g. customer1.com to A record where our web redirector is) and then www CNAME to the real A record managed by us.

Below the code in case you are interested for future us.

<?php
$url = strtolower($_SERVER["HTTP_HOST"]);

if(strpos($url, "//") !== false) { // remove http://
  $url = substr($url, strpos($url, "//") + 2);
}

$urlPagePath = "";
if(strpos($url, "/") !== false) { // store post-domain page path to append later
  $urlPagePath = substr($url, strpos($url, "/"));
  $url = substr($url, 0, strpos($url,"/"));
}


$urlLast = substr($url, strrpos($url, "."));
$url = substr($url, 0, strrpos($url, "."));


if(strpos($url, ".") !== false) { // get rid of subdomain(s)
  $url = substr($url, strrpos($url, ".") + 1);
}


$url = "http://www." . $url . $urlLast . $urlPagePath;

header( "Location:{$url}");
?>

Yes, there is a problem with pointers. Very likely you're using one that's not initialized properly, but it's also possible that you're messing up your memory management with double frees or some such.

To avoid uninitialized pointers as local variables, try declaring them as late as possible, preferably (and this isn't always possible) when they can be initialized with a meaningful value. Convince yourself that they will have a value before they're being used, by examining the code. If you have difficulty with that, initialize them to a null pointer constant (usually written as NULL or 0) and check them.

To avoid uninitialized pointers as member values, make sure they're initialized properly in the constructor, and handled properly in copy constructors and assignment operators. Don't rely on an init function for memory management, although you can for other initialization.

If your class doesn't need copy constructors or assignment operators, you can declare them as private member functions and never define them. That will cause a compiler error if they're explicitly or implicitly used.

Use smart pointers when applicable. The big advantage here is that, if you stick to them and use them consistently, you can completely avoid writing delete and nothing will be double-deleted.

Use C++ strings and container classes whenever possible, instead of C-style strings and arrays. Consider using .at(i) rather than [i], because that will force bounds checking. See if your compiler or library can be set to check bounds on [i], at least in debug mode. Segmentation faults can be caused by buffer overruns that write garbage over perfectly good pointers.

Doing those things will considerably reduce the likelihood of segmentation faults and other memory problems. They will doubtless fail to fix everything, and that's why you should use valgrind now and then when you don't have problems, and valgrind and gdb when you do.

str.split (" ") 
res27: Array[java.lang.String] = Array(a, +, b, -, c, *, d, /, e, <, f, >, g, >=, h, <=, i, ==, j)

This is what I use.

Array.prototype.delete = function(pos){
    this[pos] = undefined;
    var len = this.length - 1;
    for(var a = pos;a < this.length - 1;a++){
      this[a] = this[a+1];
    }
    this.pop();
  }

Then it is as simple as saying

var myArray = [1,2,3,4,5,6,7,8,9];
myArray.delete(3);

Replace any number in place of three. After the expected output should be:

console.log(myArray); //Expected output 1,2,3,5,6,7,8,9

use this

 double num;
    string candidate = "1";
    if (double.TryParse(candidate, out num))
    {
        // It's a number!


 }

This example doesn't work for me, for an obscure reason.

Not obscure, it's simple routing.

On OpenBSD

route add -inet 224.0.0.0/4 224.0.0.1

You can set the route to a dev on Linux

route add -net 224.0.0.0 netmask 240.0.0.0 dev wlp2s0

force all multicast traffic to one interface on Linux

   ifconfig wlp2s0 allmulti

tcpdump is super simple

tcpdump -n multicast

In your code you have:

while True:
  # For Python 3, change next line to "print(sock.recv(10240))"

Why 10240?

multicast packet size should be 1316 bytes

ASP.NET WebForms doesn't work this way. What you have above is just normal HTML, so ASP.NET isn't going to give you any facility to add/remove items. What you'll want to do is use a Repeater control, or possibly a GridView. These controls will be available in the code-behind. For example, the Repeater would expose an "Items" property upon which you can add new items (rows). In the code-front (the .aspx file) you'd provide an ItemTemplate that stubs out what the body rows would look like. There are plenty of tutorials on the web for repeaters, so I suggest you google that to obtain further information.

The way via unlist and matrix seems a bit convoluted, and requires you to hard-code the number of elements (this is actually a pretty big no-go. Of course you could circumvent hard-coding that number and determine it at run-time)

I would go a different route, and construct a data frame directly from the list that strsplit returns. For me, this is conceptually simpler. There are essentially two ways of doing this:

1. as.data.frame – but since the list is exactly the wrong way round (we have a list of rows rather than a list of columns) we have to transpose the result. We also clear the rownames since they are ugly by default (but that’s strictly unnecessary!):

   `rownames<-`(t(as.data.frame(strsplit(text, '\\.'))), NULL)
   

2. Alternatively, use rbind to construct a data frame from the list of rows. We use do.call to call rbind with all the rows as separate arguments:

   do.call(rbind, strsplit(text, '\\.'))
   

Both ways yield the same result:

     [,1] [,2] [,3]  [,4]
[1,] "F"  "US" "CLE" "V13"
[2,] "F"  "US" "CA6" "U13"
[3,] "F"  "US" "CA6" "U13"
[4,] "F"  "US" "CA6" "U13"
[5,] "F"  "US" "CA6" "U13"
[6,] "F"  "US" "CA6" "U13"
…

Clearly, the second way is much simpler than the first.

Here is my solution, cobbled together from the range filter example in the datatables docs, and letting moment.js do the dirty work of comparing the dates.

HTML

<input 
    type="text" 
    id="min-date"
    class="date-range-filter"
    placeholder="From: yyyy-mm-dd">

<input 
    type="text" 
    id="max-date" 
    class="date-range-filter"
    placeholder="To: yyyy-mm-dd">

<table id="my-table">
    <thead>
        <tr>
            <th>ID</th>
            <th>Name</th>
            <th>Created At</th>
        </tr>
    </thead>
</table>

JS

Install Moment: npm install moment

// Assign moment to global namespace
window.moment = require('moment');

// Set up your table
table = $('#my-table').DataTable({
    // ... do your thing here.
});

// Extend dataTables search
$.fn.dataTable.ext.search.push(
    function( settings, data, dataIndex ) {
        var min  = $('#min-date').val();
        var max  = $('#max-date').val();
        var createdAt = data[2] || 0; // Our date column in the table

        if  ( 
                ( min == "" || max == "" )
                || 
                ( moment(createdAt).isSameOrAfter(min) && moment(createdAt).isSameOrBefore(max) ) 
            )
        {
            return true;
        }
        return false;
    }
);

// Re-draw the table when the a date range filter changes
$('.date-range-filter').change( function() {
    table.draw();
} );

JSFiddle Here

Notes

• Using moment decouples the date comparison logic, and makes it easy to work with different formats. In my table, I used yyyy-mm-dd, but you could use mm/dd/yyyy as well. Be sure to reference moment's docs when parsing other formats, as you may need to modify what method you use.

You can use

filter: brightness(0) invert(1);

html {_x000D_
  background: red;_x000D_
}_x000D_
p {_x000D_
  float: left;_x000D_
  max-width: 50%;_x000D_
  text-align: center;_x000D_
}_x000D_
img {_x000D_
  display: block;_x000D_
  max-width: 100%;_x000D_
}_x000D_
.filter {_x000D_
  -webkit-filter: brightness(0) invert(1);_x000D_
  filter: brightness(0) invert(1);_x000D_
}

<p>_x000D_
  Original:_x000D_
  <img src="http://i.stack.imgur.com/jO8jP.gif" />_x000D_
</p>_x000D_
<p>_x000D_
  Filter:_x000D_
  <img src="http://i.stack.imgur.com/jO8jP.gif" class="filter" />_x000D_
</p>

First, brightness(0) makes all image black, except transparent parts, which remain transparent.

Then, invert(1) makes the black parts white.

This question has appeared often when searching for a similar problem, so I feel a fully implemented solution is warranted. Especially since I (and I would assume others) have struggled piecing all the various answers together.

Below is a sample Makefile which supports multiple build types in separate directories. The example illustrated shows debug and release builds.

Supports ...

• separate project directories for specific builds
• easy selection of a default target build
• silent prep target to create directories needed for building the project
• build-specific compiler configuration flags
• GNU Make's natural method of determining if project requires a rebuild
• pattern rules rather than the obsolete suffix rules

#
# Compiler flags
#
CC     = gcc
CFLAGS = -Wall -Werror -Wextra

#
# Project files
#
SRCS = file1.c file2.c file3.c file4.c
OBJS = $(SRCS:.c=.o)
EXE  = exefile

#
# Debug build settings
#
DBGDIR = debug
DBGEXE = $(DBGDIR)/$(EXE)
DBGOBJS = $(addprefix $(DBGDIR)/, $(OBJS))
DBGCFLAGS = -g -O0 -DDEBUG

#
# Release build settings
#
RELDIR = release
RELEXE = $(RELDIR)/$(EXE)
RELOBJS = $(addprefix $(RELDIR)/, $(OBJS))
RELCFLAGS = -O3 -DNDEBUG

.PHONY: all clean debug prep release remake

# Default build
all: prep release

#
# Debug rules
#
debug: $(DBGEXE)

$(DBGEXE): $(DBGOBJS)
    $(CC) $(CFLAGS) $(DBGCFLAGS) -o $(DBGEXE) $^

$(DBGDIR)/%.o: %.c
    $(CC) -c $(CFLAGS) $(DBGCFLAGS) -o $@ $<

#
# Release rules
#
release: $(RELEXE)

$(RELEXE): $(RELOBJS)
    $(CC) $(CFLAGS) $(RELCFLAGS) -o $(RELEXE) $^

$(RELDIR)/%.o: %.c
    $(CC) -c $(CFLAGS) $(RELCFLAGS) -o $@ $<

#
# Other rules
#
prep:
    @mkdir -p $(DBGDIR) $(RELDIR)

remake: clean all

clean:
    rm -f $(RELEXE) $(RELOBJS) $(DBGEXE) $(DBGOBJS)

Note that Visual C++ compilers are removed when you upgrade Visual Studio 2010 Professional or Visual Studio 2010 Express to Visual Studio 2010 SP1 if Windows SDK v7.1 is installed.

For instructions on resolving this, see KB2519277 on the Microsoft Support site.

You're probably going to have to resize the button programmatically. You'll need to explicitly load the image in your onCreate() method, and resize the button there:

public void onCreate(Bundle savedInstanceState) {  
  super.onCreate(savedInstanceState);  
  setContentView(R.layout.main);  
  ImageButton myButton = (ImageButton) findViewById(R.id.button);  
  Bitmap image = BitmapFactory.decodeResource(R.drawable.eye);  
  myButton.setBitmap(image);  
  myButton.setMinimumWidth(image.getWidth());  
  myButton.setMinimumHeight(image.getHeight());
  ...
}

It's not guaranteed to work, according to the specifications for setMinimumX (since the width and height are still dependent on the parent view), but it should work pretty well for almost every situation.

After selecting "SVN command line tools" it will become like this:

In regards to the question in your comment:

Assuming that you've previously bound your function to the click event of the radio button, add this to your $(document).ready function:

$('#[radioButtonOptionID]').click()

Without a parameter, that simulates the click event.

you can use the below code to bring focus to a div, in this example the page scrolls to the <div id="navigation">

$('html, body').animate({ scrollTop: $('#navigation').offset().top }, 'slow');

In a nutshell, Forking is perhaps the same as "cloning under your GitHub ID/profile". A fork is anytime better than a clone, with a few exceptions, obviously. The forked repository is always being monitored/compared with the original repository unlike a cloned repository. That enables you to track the changes, initiate pull requests and also manually sync the changes made in the original repository with your forked one.

You can use following formulas.

For Excel 2007 or later:

=IFERROR(VLOOKUP(D3,List!A:C,3,FALSE),"No Match")

For Excel 2003:

=IF(ISERROR(MATCH(D3,List!A:A, 0)), "No Match", VLOOKUP(D3,List!A:C,3,FALSE))

Note, that

• I'm using List!A:C in VLOOKUP and returns value from column ? 3
• I'm using 4th argument for VLOOKUP equals to FALSE, in that case VLOOKUP will only find an exact match, and the values in the first column of List!A:C do not need to be sorted (opposite to case when you're using TRUE).

My solution would be create custom filter and use it:

app.filter('with', function() {
  return function(items, field) {
        var result = {};
        angular.forEach(items, function(value, key) {
            if (!value.hasOwnProperty(field)) {
                result[key] = value;
            }
        });
        return result;
    };
});

And in html:

 <div ng-repeat="(k,v) in items | with:'secId'">
        {{k}} {{v.pos}}
 </div>

I had a similar need: I needed to be able to parse any date ISO8601 compliant without knowing the exact format in advance, and I wanted a lightweight solution which would also work on Android.

When I googled my needs I stumbled upon this question, and noticed that AFAIU, no answer completely fit my needs. So I developed jISO8601 and pushed it on maven central.

Just add in you pom.xml:

<dependency>
  <groupId>fr.turri</groupId>
  <artifactId>jISO8601</artifactId>
  <version>0.2</version>
</dependency>

and then you're good to go:

import fr.turri.jiso8601.*;
...
Calendar cal = Iso8601Deserializer.toCalendar("1985-03-04");
Date date = Iso8601Deserializer.toDate("1985-03-04T12:34:56Z");

Hopes it help.

I created a higher order function which takes the code you want to measure in/as a lambda:

class Utils {

    public static <T> T timeIt(String msg, Supplier<T> s) {
        long startTime = System.nanoTime();
        T t = s.get();
        long endTime = System.nanoTime();
        System.out.println(msg + ": " + (endTime - startTime) + " ns");
        return t;
    }

    public static void timeIt(String msg, Runnable r) {
       timeIt(msg, () -> {r.run(); return null; });
    }
}

Call it like that:

Utils.timeIt("code 0", () ->
        System.out.println("Hallo")
);

// in case you need the result of the lambda
int i = Utils.timeIt("code 1", () ->
        5 * 5
);

Output:

code 0: 180528 ns
code 1: 12003 ns

_{Special thanks to Andy Turner who helped me cut down the redundancy. See here.}

According to the documentation the related method to android:backgroundTint is setBackgroundTintList(ColorStateList list)

Update

Follow this link to know how create a Color State List Resource.

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
    <item
        android:color="#your_color_here" />
</selector>

then load it using

setBackgroundTintList(contextInstance.getResources().getColorStateList(R.color.your_xml_name));

where contextInstance is an instance of a Context

using AppCompart

btnTag.setSupportButtonTintList(ContextCompat.getColorStateList(Activity.this, R.color.colorPrimary));

Here is my solution without using TextInputEditText and Transformation method.

XML

<LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <TextView
            style="@style/FormLabel"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="@string/username" />

        <EditText
            android:id="@+id/loginUsername"
            style="@style/EditTextStyle"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:drawableLeft="@drawable/ic_person_outline_black_24dp"
            android:drawableStart="@drawable/ic_person_outline_black_24dp"
            android:inputType="textEmailAddress"
            android:textColor="@color/black" />

        <TextView
            style="@style/FormLabel"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="20dp"
            android:text="@string/password" />

        <EditText
            android:id="@+id/loginPassword"
            style="@style/EditTextStyle"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:drawableEnd="@drawable/ic_visibility_off_black_24dp"
            android:drawableLeft="@drawable/ic_lock_outline_black_24dp"
            android:drawableRight="@drawable/ic_visibility_off_black_24dp"
            android:drawableStart="@drawable/ic_lock_outline_black_24dp"
            android:inputType="textPassword"
            android:textColor="@color/black" />
    </LinearLayout>

Java Code

boolean VISIBLE_PASSWORD = false;  //declare as global variable befor onCreate() 
loginPassword = (EditText)findViewById(R.id.loginPassword);
loginPassword.setOnTouchListener(new View.OnTouchListener() {
        public boolean onTouch(View v, MotionEvent event) {
            final int DRAWABLE_LEFT = 0;
            final int DRAWABLE_TOP = 1;
            final int DRAWABLE_RIGHT = 2;
            final int DRAWABLE_BOTTOM = 3;

            if (event.getAction() == MotionEvent.ACTION_UP) {
                if (event.getRawX() >= (loginPassword.getRight() - loginPassword.getCompoundDrawables()[DRAWABLE_RIGHT].getBounds().width())) {
                    // your action here
                    //Helper.toast(LoginActivity.this, "Toggle visibility");
                    if (VISIBLE_PASSWORD) {
                        VISIBLE_PASSWORD = false;
                        loginPassword.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
                        loginPassword.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_lock_outline_black_24dp, 0, R.drawable.ic_visibility_off_black_24dp, 0);
                    } else {
                        VISIBLE_PASSWORD = true;
                        loginPassword.setInputType(InputType.TYPE_CLASS_TEXT);
                        loginPassword.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_lock_outline_black_24dp, 0, R.drawable.ic_visibility_black_24dp, 0);
                    }
                    return false;
                }
            }
            return false;
        }
    });

yes, you can have associative arrays also in javascript:

var obj = 
{
    name:'some name',
    otherProperty:'prop value',
    date: new Date()
};
for(i in obj)
{
    var propVal = obj[i]; // i is the key, and obj[i] is the value ...
}

For apache2 server:

AddType application/octect-stream .ova

File location will depend on particular version of Apache2 -- ours is in /etc/apache2/mods-available/mime.conf

Reference:

https://askubuntu.com/questions/610645/how-to-configure-apache2-to-download-files-directly

If it is not necessary turn off 'Enable 32-bit Applications' from your respective application pool of your website.

This worked for me on my local machine

why don't you give LiteralControl a try?

 myLitCtrl.Text="<h2><p>Notify:</p> Alert</h2>";

Depending on your platform you can use: sqlite3 file_name.db from the terminal. .tables will list the tables, .schema is full layout. SQLite commands like: select * from table_name; and such will print out the full contents. Type: ".exit" to exit. No need to download a GUI application.Use a semi-colon if you want it to execute a single command. Decent SQLite usage tutorial http://www.thegeekstuff.com/2012/09/sqlite-command-examples/

.element{position: relative;top: 50%;transform: translateY(-50%);}

Add this small code in the CSS property of your element. It is awesome. Try it!

Using ES6: There are many ways to search for strings and replace in JavaScript. One of them is as follow

const findFor = ['<', '>', '\n'];_x000D_
_x000D_
const replaceWith = ['&lt;', '&gt;', '<br/>'];_x000D_
_x000D_
const originalString = '<strong>Hello World</strong> \n Let\'s code';_x000D_
_x000D_
let modifiedString = originalString;_x000D_
_x000D_
findFor.forEach( (tag, i) => modifiedString = modifiedString.replace(new RegExp(tag, "g"), replaceWith[i]) )_x000D_
_x000D_
console.log('Original String: ', originalString);_x000D_
console.log('Modified String: ', modifiedString);

Iterate through a copy of the list and add new elements to the original list.

for (String s : new ArrayList<String>(list))     
{
    list.add("u");
}

See How to make a copy of ArrayList object which is type of List?

You can use javax.xml.bind.DatatypeConverter class

DatatypeConverter.printDateTime & DatatypeConverter.parseDateTime

I had the same error message. For me changing pooling=False to ;pooling=true;Max Pool Size=200 in the connection string fixed the problem.

you have to call set and add functions on chart object before calling redraw.

chart.xAxis[0].setCategories([2,4,5,6,7], false);

chart.addSeries({
    name: "acx",
    data: [4,5,6,7,8]
}, false);

chart.redraw();

You can use the clearfix to do "layout preserving" the same way overflow: hidden does.

.clearfix:before,
.clearfix:after {
    content: ".";    
    display: block;    
    height: 0;    
    overflow: hidden; 
}
.clearfix:after { clear: both; }
.clearfix { zoom: 1; } /* IE < 8 */

add class="clearfix" class to the parent, and remove overflow: hidden;

I added a mMap.setOnMarkerClickListener(this); in the onMapReady(GoogleMap googleMap) method. So every time you click a marker it displays the text name in the toast method.

public class DemoMapActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener,OnMapReadyCallback, GoogleMap.OnMarkerClickListener {

private GoogleMap mMap;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_places);
    Toolbar toolbar = findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
    mapFragment.getMapAsync(this);
}

@Override
public void onMapReady(GoogleMap googleMap) {
    mMap = googleMap;
    double lat=0.34924212701428;
    double lng=32.616554024713;
    String venue = "Capital Shoppers City";
    LatLng location = new LatLng(lat, lng);
    mMap.addMarker(new MarkerOptions().position(location).title(venue)).setTag(0);
    CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLng(location);
    CameraUpdate zoom = CameraUpdateFactory.zoomTo(16);
    mMap.moveCamera(cameraUpdate);
    mMap.animateCamera(zoom);
    mMap.setOnMarkerClickListener(this);
}

@Override
public boolean onMarkerClick(final Marker marker) {
    // Retrieve the data from the marker.
    Integer clickCount = (Integer) marker.getTag();

    // Check if a click count was set, then display the click count.
    if (clickCount != null) {
        clickCount = clickCount + 1;
        marker.setTag(clickCount);
        Toast.makeText(this,
                       marker.getTitle() +
                       " has been clicked ",
                       Toast.LENGTH_SHORT).show();
    }
    // Return false to indicate that we have not consumed the event and that we wish
    // for the default behavior to occur (which is for the camera to move such that the
    // marker is centered and for the marker's info window to open, if it has one).
    return false;
}

}

You can check this link for reference Markers

For Django in django.test.TestCase unit testing, I changed my Python2 syntax:

def test_view(self):
    response = self.client.get(reverse('myview'))
    self.assertIn(str(self.obj.id), response.content)
    ...

To use the Python3 .decode('utf8') syntax:

def test_view(self):
    response = self.client.get(reverse('myview'))
    self.assertIn(str(self.obj.id), response.content.decode('utf8'))
    ...

There are two solutions, as far as I know.

both that just need using vanilla javascript

1 selectedOptions

live demo

const log = console.log;_x000D_
const areaSelect = document.querySelector(`[id="area"]`);_x000D_
_x000D_
areaSelect.addEventListener(`change`, (e) => {_x000D_
  // log(`e.target`, e.target);_x000D_
  const select = e.target;_x000D_
  const value = select.value;_x000D_
  const desc = select.selectedOptions[0].text;_x000D_
  log(`option desc`, desc);_x000D_
});

<div class="select-box clearfix">_x000D_
  <label for="area">Area</label>_x000D_
  <select id="area">_x000D_
    <option value="101">A1</option>_x000D_
    <option value="102">B2</option>_x000D_
    <option value="103">C3</option>_x000D_
  </select>_x000D_
</div>

2 options

live demo

const log = console.log;_x000D_
const areaSelect = document.querySelector(`[id="area"]`);_x000D_
_x000D_
areaSelect.addEventListener(`change`, (e) => {_x000D_
  // log(`e.target`, e.target);_x000D_
  const select = e.target;_x000D_
  const value = select.value;_x000D_
  const desc = select.options[select.selectedIndex].text;_x000D_
  log(`option desc`, desc);_x000D_
});

<div class="select-box clearfix">_x000D_
  <label for="area">Area</label>_x000D_
  <select id="area">_x000D_
    <option value="101">A1</option>_x000D_
    <option value="102">B2</option>_x000D_
    <option value="103">C3</option>_x000D_
  </select>_x000D_
</div>

This is a late entry for folks, but below is my implementation. You will also notice I stubbed-out the ability to change the the KEYs default type: the details about which can be found in the following articles:

• Extending Identity Models and Using Integer Keys Instead of Strings
• Change Primary Key for Users in ASP.NET Identity

NOTES:
It should be noted that you cannot use Guid's for your keys. This is because under the hood they are a Struct, and as such, have no unboxing which would allow their conversion from a generic <TKey> parameter.

THE CLASSES LOOK LIKE:

public class ApplicationDbContext : IdentityDbContext<ApplicationUser, CustomRole, string, CustomUserLogin, CustomUserRole, CustomUserClaim>
{
    #region <Constructors>

    public ApplicationDbContext() : base(Settings.ConnectionString.Database.AdministrativeAccess)
    {
    }

    #endregion

    #region <Properties>

    //public DbSet<Case> Case { get; set; }

    #endregion

    #region <Methods>

    #region

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        base.OnModelCreating(modelBuilder);

        //modelBuilder.Configurations.Add(new ResourceConfiguration());
        //modelBuilder.Configurations.Add(new OperationsToRolesConfiguration());
    }

    #endregion

    #region

    public static ApplicationDbContext Create()
    {
        return new ApplicationDbContext();
    }

    #endregion

    #endregion
}

    public class ApplicationUser : IdentityUser<string, CustomUserLogin, CustomUserRole, CustomUserClaim>
    {
        #region <Constructors>

        public ApplicationUser()
        {
            Init();
        }

        #endregion

        #region <Properties>

        [Required]
        [StringLength(250)]
        public string FirstName { get; set; }

        [Required]
        [StringLength(250)]
        public string LastName { get; set; }

        #endregion

        #region <Methods>

        #region private

        private void Init()
        {
            Id = Guid.Empty.ToString();
        }

        #endregion

        #region public

        public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser, string> manager)
        {
            // Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
            var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);

            // Add custom user claims here

            return userIdentity;
        }

        #endregion

        #endregion
    }

    public class CustomUserStore : UserStore<ApplicationUser, CustomRole, string, CustomUserLogin, CustomUserRole, CustomUserClaim>
    {
        #region <Constructors>

        public CustomUserStore(ApplicationDbContext context) : base(context)
        {
        }

        #endregion
    }

    public class CustomUserRole : IdentityUserRole<string>
    {
    }

    public class CustomUserLogin : IdentityUserLogin<string>
    {
    }

    public class CustomUserClaim : IdentityUserClaim<string> 
    { 
    }

    public class CustomRoleStore : RoleStore<CustomRole, string, CustomUserRole>
    {
        #region <Constructors>

        public CustomRoleStore(ApplicationDbContext context) : base(context)
        {
        } 

        #endregion
    }

    public class CustomRole : IdentityRole<string, CustomUserRole>
    {
        #region <Constructors>

        public CustomRole() { }
        public CustomRole(string name) 
        { 
            Name = name; 
        }

        #endregion
    }

I created simple examples to clarify understanding of ManualResetEvent vs AutoResetEvent.

AutoResetEvent: lets assume you have 3 workers thread. If any of those threads will call WaitOne() all other 2 threads will stop execution and wait for signal. I am assuming they are using WaitOne(). It is like; if I do not work, nobody works. In first example you can see that

autoReset.Set();
Thread.Sleep(1000);
autoReset.Set();

When you call Set() all threads will work and wait for signal. After 1 second I am sending second signal and they execute and wait (WaitOne()). Think about these guys are soccer team players and if one player says I will wait until manager calls me, and others will wait until manager tells them to continue (Set())

public class AutoResetEventSample
{
    private AutoResetEvent autoReset = new AutoResetEvent(false);

    public void RunAll()
    {
        new Thread(Worker1).Start();
        new Thread(Worker2).Start();
        new Thread(Worker3).Start();
        autoReset.Set();
        Thread.Sleep(1000);
        autoReset.Set();
        Console.WriteLine("Main thread reached to end.");
    }

    public void Worker1()
    {
        Console.WriteLine("Entered in worker 1");
        for (int i = 0; i < 5; i++) {
            Console.WriteLine("Worker1 is running {0}", i);
            Thread.Sleep(2000);
            autoReset.WaitOne();
        }
    }
    public void Worker2()
    {
        Console.WriteLine("Entered in worker 2");

        for (int i = 0; i < 5; i++) {
            Console.WriteLine("Worker2 is running {0}", i);
            Thread.Sleep(2000);
            autoReset.WaitOne();
        }
    }
    public void Worker3()
    {
        Console.WriteLine("Entered in worker 3");

        for (int i = 0; i < 5; i++) {
            Console.WriteLine("Worker3 is running {0}", i);
            Thread.Sleep(2000);
            autoReset.WaitOne();
        }
    }
}

In this example you can clearly see that when you first hit Set() it will let all threads go, then after 1 second it signals all threads to wait! As soon as you set them again regardless they are calling WaitOne() inside, they will keep running because you have to manually call Reset() to stop them all.

manualReset.Set();
Thread.Sleep(1000);
manualReset.Reset();
Console.WriteLine("Press to release all threads.");
Console.ReadLine();
manualReset.Set();

It is more about Referee/Players relationship there regardless of any of the player is injured and wait for playing others will continue to work. If Referee says wait (Reset()) then all players will wait until next signal.

public class ManualResetEventSample
{
    private ManualResetEvent manualReset = new ManualResetEvent(false);

    public void RunAll()
    {
        new Thread(Worker1).Start();
        new Thread(Worker2).Start();
        new Thread(Worker3).Start();
        manualReset.Set();
        Thread.Sleep(1000);
        manualReset.Reset();
        Console.WriteLine("Press to release all threads.");
        Console.ReadLine();
        manualReset.Set();
        Console.WriteLine("Main thread reached to end.");
    }

    public void Worker1()
    {
        Console.WriteLine("Entered in worker 1");
        for (int i = 0; i < 5; i++) {
            Console.WriteLine("Worker1 is running {0}", i);
            Thread.Sleep(2000);
            manualReset.WaitOne();
        }
    }
    public void Worker2()
    {
        Console.WriteLine("Entered in worker 2");

        for (int i = 0; i < 5; i++) {
            Console.WriteLine("Worker2 is running {0}", i);
            Thread.Sleep(2000);
            manualReset.WaitOne();
        }
    }
    public void Worker3()
    {
        Console.WriteLine("Entered in worker 3");

        for (int i = 0; i < 5; i++) {
            Console.WriteLine("Worker3 is running {0}", i);
            Thread.Sleep(2000);
            manualReset.WaitOne();
        }
    }
}

Late answer, I know, but for me the following script is quite useful - and it answers the question too, hitting two flys with one flag ;-)

The following script expands SendTo in the file explorer's context menu:

@echo off
cls
if "%~dp1"=="" goto Install

REM change drive, then cd to path given and run shell there
%~d1
cd "%~dp1"
cmd /k
goto End

:Install
rem No arguments: Copies itself into SendTo folder
copy "%0" "%appdata%\Microsoft\Windows\SendTo\A - Open in CMD shell.cmd"

:End

If you run this script without any parameters by double-clicking on it, it will copy itself to the SendTo folder and renaming it to "A - Open in CMD shell.cmd". Afterwards it is available in the "SentTo" context menu.

Then, right-click on any file or folder in Windows explorer and select "SendTo > A - Open in CMD shell.cmd"

The script will change drive and path to the path containing the file or folder you have selected and open a command shell with that path - useful for Visual Studio Code, because then you can just type "code ." to run it in the context of your project.

How does it work?

%0 - full path of the batch script
%~d1 - the drive contained in the first argument (e.g. "C:")
%~dp1 - the path contained in the first argument
cmd /k - opens a command shell which stays open

Not used here, but %~n1 is the file name of the first argument.

I hope this is helpful for someone.

The default value can be followed with a : after the property key, e.g.

<property name="port" value="${my.server.port:8080}" />

Or in java code:

@Value("${my.server.port:8080}")
private String myServerPort;

See:

• valueSeparator (from AbstractPropertyResolver)

• and VALUE_SEPARATOR (from SystemPropertyUtils)

BTW, the Elvis Operator is only available within Spring Expression Language (SpEL),
e.g.: https://stackoverflow.com/a/37706167/537554

Here's a Swift implementation. You can make an extension so that it will be usable by other views if you like.

extension UIView {
    func addBorderAndColor(color: UIColor, width: CGFloat, corner_radius: CGFloat = 0, clipsToBounds: Bool = false) {
        self.layer.borderWidth  = width
        self.layer.borderColor  = color.cgColor
        self.layer.cornerRadius = corner_radius
        self.clipsToBounds      = clipsToBounds
    }
}

Call this like: email.addBorderAndColor(color: UIColor.white, width: 0.5, corner_radius: 5, clipsToBounds: true).

Consider your data is into column A and will write coding now

Sub deletezeros()
    Dim c As Range
    Dim searchrange As Range
    Dim i As Long

    Set searchrange = ActiveSheet.Range("A1", ActiveSheet.Range("A65536").End(xlUp))

    For i = searchrange.Cells.Count To 1 Step -1
        Set c = searchrange.Cells(i)
        If c.Value = "0" Then c.EntireRow.delete
    Next i
End Sub

You can do this:

<img src="your image" style="transform:rotate(90deg);">

it is much easier.

As a python3 user,

The difference between load and loads methods is important especially when you read json data from file.

As stated in the docs:

json.load:

Deserialize fp (a .read()-supporting text file or binary file containing a JSON document) to a Python object using this conversion table.

json.loads:

json.loads: Deserialize s (a str, bytes or bytearray instance containing a JSON document) to a Python object using this conversion table.

json.load method can directly read opened json document since it is able to read binary file.

with open('./recipes.json') as data:
  all_recipes = json.load(data)

As a result, your json data available as in a format specified according to this conversion table:

https://docs.python.org/3.7/library/json.html#json-to-py-table

I ran into this issue over the past couple days. Like Omri Aharon said in their answer above, it is important to add definitions for your prop types similar to:

SomeClass.propTypes = {
    someProp: PropTypes.number,
    onTap: PropTypes.func,
};

Don't forget to add the prop definitions outside of your class. I would place it right below/above my class. If you are not sure what your variable type or suffix is for your PropType (ex: PropTypes.number), refer to this npm reference. To Use PropTypes, you must import the package:

import PropTypes from 'prop-types';

If you get the linting error:someProp is not required, but has no corresponding defaultProps declaration all you have to do is either add .isRequired to the end of your prop definition like so:

SomeClass.propTypes = {
    someProp: PropTypes.number.isRequired,
    onTap: PropTypes.func.isRequired,
};

OR add default prop values like so:

SomeClass.defaultProps = {
    someProp: 1
};

If you are anything like me, unexperienced or unfamiliar with reactjs, you may also get this error: Must use destructuring props assignment. To fix this error, define your props before they are used. For example:

const { someProp } = this.props;

In Swift 4.2 and many earlier versions, instead of setting the first header's height to 0 like in the other answers, you can just set the other headers to nil. Say you have two sections and only want the second one (i.e., 1) to have a header. That header will have the text Foobar:

override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
    return section == 1 ? "Foobar" : nil
}

I've just written a library called jsPDF which generates PDFs using Javascript alone. It's still very young, and I'll be adding features and bug fixes soon. Also got a few ideas for workarounds in browsers that do not support Data URIs. It's licensed under a liberal MIT license.

I came across this question before I started writing it and thought I'd come back and let you know :)

Generate PDFs in Javascript

Example create a "Hello World" PDF file.

// Default export is a4 paper, portrait, using milimeters for units_x000D_
var doc = new jsPDF()_x000D_
_x000D_
doc.text('Hello world!', 10, 10)_x000D_
doc.save('a4.pdf')

<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.3.5/jspdf.debug.js"></script>

I want to add this answer for quickreference. Feel free to update.

.NET Regex using balancing groups.

\((?>\((?<c>)|[^()]+|\)(?<-c>))*(?(c)(?!))\)

Where c is used as the depth counter.

Demo at Regexstorm.com

• Stack Overflow: Using RegEx to balance match parenthesis
• Wes' Puzzling Blog: Matching Balanced Constructs with .NET Regular Expressions
• Greg Reinacker's Weblog: Nested Constructs in Regular Expressions

PCRE using a recursive pattern.

\((?:[^)(]+|(?R))*+\)

Demo at regex101; Or without alternation:

\((?:[^)(]*(?R)?)*+\)

Demo at regex101; Or unrolled for performance:

\([^)(]*+(?:(?R)[^)(]*)*+\)

Demo at regex101; The pattern is pasted at (?R) which represents (?0).

Perl, PHP, Notepad++, R: perl=TRUE, Python: Regex package with (?V1) for Perl behaviour.

Ruby using subexpression calls.

With Ruby 2.0 \g<0> can be used to call full pattern.

\((?>[^)(]+|\g<0>)*\)

Demo at Rubular; Ruby 1.9 only supports capturing group recursion:

(\((?>[^)(]+|\g<1>)*\))

Demo at Rubular  (atomic grouping since Ruby 1.9.3)

JavaScript  API :: XRegExp.matchRecursive

XRegExp.matchRecursive(str, '\\(', '\\)', 'g');

JS, Java and other regex flavors without recursion up to 2 levels of nesting:

\((?:[^)(]+|\((?:[^)(]+|\([^)(]*\))*\))*\)

Demo at regex101. Deeper nesting needs to be added to pattern.
To fail faster on unbalanced parenthesis drop the + quantifier.

Java: An interesting idea using forward references by @jaytea.

_{Reference - What does this regex mean?}

• rexegg.com - Recursive Regular Expressions
• Regular-Expressions.info - Regular Expression Recursion

I like prettyPhoto

prettyPhoto is a jQuery lightbox clone. Not only does it support images, it also support for videos, flash, YouTube, iframes and ajax. It’s a full blown media lightbox

TL;DR

Here's a version where you don't need a human to read a value and type it out themselves.

CREATE SEQUENCE foo_a_seq OWNED BY foo.a;
SELECT setval('foo_a_seq', coalesce(max(a), 0) + 1, false) FROM foo;
ALTER TABLE foo ALTER COLUMN a SET DEFAULT nextval('foo_a_seq'); 

Another option would be to employ the reusable Function shared at the end of this answer.

A non-interactive solution

Just adding to the other two answers, for those of us who need to have these Sequences created by a non-interactive script, while patching a live-ish DB for instance.

That is, when you don't wanna SELECT the value manually and type it yourself into a subsequent CREATE statement.

In short, you can not do:

CREATE SEQUENCE foo_a_seq
    START WITH ( SELECT max(a) + 1 FROM foo );

... since the START [WITH] clause in CREATE SEQUENCE expects a value, not a subquery.

Note: As a rule of thumb, that applies to all non-CRUD (i.e.: anything other than INSERT, SELECT, UPDATE, DELETE) statements in pgSQL AFAIK.

However, setval() does! Thus, the following is absolutely fine:

SELECT setval('foo_a_seq', max(a)) FROM foo;

If there's no data and you don't (want to) know about it, use coalesce() to set the default value:

SELECT setval('foo_a_seq', coalesce(max(a), 0)) FROM foo;
--                         ^      ^         ^
--                       defaults to:       0

However, having the current sequence value set to 0 is clumsy, if not illegal.
Using the three-parameter form of setval would be more appropriate:

--                                             vvv
SELECT setval('foo_a_seq', coalesce(max(a), 0) + 1, false) FROM foo;
--                                                  ^   ^
--                                                is_called

Setting the optional third parameter of setval to false will prevent the next nextval from advancing the sequence before returning a value, and thus:

the next nextval will return exactly the specified value, and sequence advancement commences with the following nextval.

— from this entry in the documentation

On an unrelated note, you also can specify the column owning the Sequence directly with CREATE, you don't have to alter it later:

CREATE SEQUENCE foo_a_seq OWNED BY foo.a;

In summary:

CREATE SEQUENCE foo_a_seq OWNED BY foo.a;
SELECT setval('foo_a_seq', coalesce(max(a), 0) + 1, false) FROM foo;
ALTER TABLE foo ALTER COLUMN a SET DEFAULT nextval('foo_a_seq'); 

Using a Function

Alternatively, if you're planning on doing this for multiple columns, you could opt for using an actual Function.

CREATE OR REPLACE FUNCTION make_into_serial(table_name TEXT, column_name TEXT) RETURNS INTEGER AS $$
DECLARE
    start_with INTEGER;
    sequence_name TEXT;
BEGIN
    sequence_name := table_name || '_' || column_name || '_seq';
    EXECUTE 'SELECT coalesce(max(' || column_name || '), 0) + 1 FROM ' || table_name
            INTO start_with;
    EXECUTE 'CREATE SEQUENCE ' || sequence_name ||
            ' START WITH ' || start_with ||
            ' OWNED BY ' || table_name || '.' || column_name;
    EXECUTE 'ALTER TABLE ' || table_name || ' ALTER COLUMN ' || column_name ||
            ' SET DEFAULT nextVal(''' || sequence_name || ''')';
    RETURN start_with;
END;
$$ LANGUAGE plpgsql VOLATILE;

Use it like so:

INSERT INTO foo (data) VALUES ('asdf');
-- ERROR: null value in column "a" violates not-null constraint

SELECT make_into_serial('foo', 'a');
INSERT INTO foo (data) VALUES ('asdf');
-- OK: 1 row(s) affected

You use a forward declaration when you need a complete type.

You must have a full definition of the class in order to use it.

The usual way to go about this is:

1) create a file Cat_main.h

2) move

#include <string>

class Cat
{
    public:
        Cat(std::string str);
    // Variables
        std::string name;
    // Functions
        void Meow();
};

to Cat_main.h. Note that inside the header I removed using namespace std; and qualified string with std::string.

3) include this file in both Cat_main.cpp and Cat.cpp:

#include "Cat_main.h"

EDIT 2015-October: As others have commented here the openxlsx and readxl packages are by far faster than the xlsx package and actually manage to open larger Excel files (>1500 rows & > 120 columns). @MichaelChirico demonstrates that readxl is better when speed is preferred and openxlsx replaces the functionality provided by the xlsx package. If you are looking for a package to read, write, and modify Excel files in 2015, pick the openxlsx instead of xlsx.

Pre-2015: I have used xlsxpackage. It changed my workflow with Excel and R. No more annoying pop-ups asking, if I am sure that I want to save my Excel sheet in .txt format. The package also writes Excel files.

However, I find read.xlsx function slow, when opening large Excel files. read.xlsx2 function is considerably faster, but does not quess the vector class of data.frame columns. You have to use colClasses command to specify desired column classes, if you use read.xlsx2 function. Here is a practical example:

read.xlsx("filename.xlsx", 1) reads your file and makes the data.frame column classes nearly useful, but is very slow for large data sets. Works also for .xls files.

read.xlsx2("filename.xlsx", 1) is faster, but you will have to define column classes manually. A shortcut is to run the command twice (see the example below). character specification converts your columns to factors. Use Dateand POSIXct options for time.

coln <- function(x){y <- rbind(seq(1,ncol(x))); colnames(y) <- colnames(x)
rownames(y) <- "col.number"; return(y)} # A function to see column numbers

data <- read.xlsx2("filename.xlsx", 1) # Open the file 

coln(data)    # Check the column numbers you want to have as factors

x <- 3 # Say you want columns 1-3 as factors, the rest numeric

data <- read.xlsx2("filename.xlsx", 1, colClasses= c(rep("character", x),
rep("numeric", ncol(data)-x+1)))

One more alternative options

var map = new google.maps.Map(document.getElementById('map_canvas'), {
    zoom: 1,
    center: new google.maps.LatLng(35.137879, -82.836914),
    mapTypeId: google.maps.MapTypeId.ROADMAP
});

var myMarker = new google.maps.Marker({
    position: new google.maps.LatLng(47.651968, 9.478485),
    draggable: true
});

google.maps.event.addListener(myMarker, 'dragend', function (evt) {
    document.getElementById('current').innerHTML = '<p>Marker dropped: Current Lat: ' + evt.latLng.lat().toFixed(3) + ' Current Lng: ' + evt.latLng.lng().toFixed(3) + '</p>';
});

google.maps.event.addListener(myMarker, 'dragstart', function (evt) {
    document.getElementById('current').innerHTML = '<p>Currently dragging marker...</p>';
});

map.setCenter(myMarker.position);
myMarker.setMap(map);

and html file

<body>
    <section>
        <div id='map_canvas'></div>
        <div id="current">Nothing yet...</div>
    </section>
</body>

This code works fine with me

<script type="text/javascript">
$(document).ready(function(){ 
$("#select_all").change(function(){
  $(".checkbox_class").prop("checked", $(this).prop("checked"));
  });
});
</script>

you only need to add class checkbox_class to all checkbox

Easy and simple :D

additionally to @franc's answer you can use this from sql interface:

select 
    prosrc
from pg_trigger, pg_proc
where
 pg_proc.oid=pg_trigger.tgfoid
 and pg_trigger.tgname like '<name>'

(taken from here: http://www.postgresql.org/message-id/Pine.BSF.4.10.10009140858080.28013-100000@megazone23.bigpanda.com)

This one is similar to @Wilhelm's solution. The loop automates based on a range created by evaluating the populated date column. This was slapped together based strictly on the conversation here and screenshots.

Please note: This assumes that the headers will always be on the same row (row 8). Changing the first row of data (moving the header up/down) will cause the range automation to break unless you edit the range block to take in the header row dynamically. Other assumptions include that VOL and CAPACITY formula column headers are named "Vol" and "Cap" respectively.

Sub Loop3()

Dim dtCnt As Long
Dim rng As Range
Dim frmlas() As String

Application.ScreenUpdating = False

'The following code block sets up the formula output range
dtCnt = Sheets("Loop").Range("A1048576").End(xlUp).Row              'lowest date column populated
endHead = Sheets("Loop").Range("XFD8").End(xlToLeft).Column         'right most header populated
Set rng = Sheets("Loop").Range(Cells(9, 2), Cells(dtCnt, endHead))  'assigns range for automation

ReDim frmlas(1)      'array assigned to formula strings
    'VOL column formula
frmlas(0) = "VOL FORMULA"
    'CAPACITY column formula
frmlas(1) = "CAP FORMULA"

For i = 1 To rng.Columns.count
If rng(0, i).Value = "Vol" Then         'checks for volume formula column
    For j = 1 To rng.Rows.count
        rng(j, i).Formula= frmlas(0)    'inserts volume formula
    Next j
ElseIf rng(0, i).Value = "Cap" Then     'checks for capacity formula column
    For j = 1 To rng.Rows.count
        rng(j, i).Formula = frmlas(1)   'inserts capacity formula
    Next j
End If
Next i

Application.ScreenUpdating = True

End Sub

An IP gives you an quite unreliable location, you could Ajax the location upon load with JS if it isn't critical to have the location at first. (Also, the user need's to give you it's permission to access it.)

Html5 Geolocation

the string in your question is not a valid json string. From json.org website:

JSON is built on two structures:

* A collection of name/value pairs. In various languages, this is 
  realized as an object, record, struct, dictionary, hash table, keyed list, or
  associative array.
* An ordered list of values. In most languages, this is realized as an
  array, vector, list, or sequence.

Basically a json string will always start with either { or [.

Then as @Andy E and @Cryo said you can parse the string with json2.js or some other libraries.

IMHO you should avoid eval because it will any javascript program, so you might incur in security issues.

Here is email code I used in one of my databases. I just made variables for the person I wanted to send it to, CC, subject, and the body. Then you just use the DoCmd.SendObject command. I also set it to "True" after the body so you can edit the message before it automatically sends.

Public Function SendEmail2()

Dim varName As Variant          
Dim varCC As Variant            
Dim varSubject As Variant      
Dim varBody As Variant          

varName = "[email protected]"
varCC = "[email protected], [email protected]"
'separate each email by a ','

varSubject = "Hello"
'Email subject

varBody = "Let's get ice cream this week"

'Body of the email
DoCmd.SendObject , , , varName, varCC, , varSubject, varBody, True, False
'Send email command. The True after "varBody" allows user to edit email before sending.
'The False at the end will not send it as a Template File

End Function

I have to display files of computer code. If special characters are inside the file like less than or greater than, a simple "include" will not display them. Try:

$file = 'code.ino';
$orig = file_get_contents($file);
$a = htmlentities($orig);

echo '<code>';
echo '<pre>';

echo $a;

echo '</pre>';
echo '</code>';

Use SharedPreferences, http://developer.android.com/reference/android/content/SharedPreferences.html

Here's a sample: http://developer.android.com/guide/topics/data/data-storage.html#pref

If the data structure is more complex or the data is large, use an Sqlite database; but for small amount of data and with a very simple data structure, I'd say, SharedPrefs will do and a DB might be overhead.

I hide the warnings in the pink boxes by running the following code in a cell:

from IPython.display import HTML
HTML('''<script>
code_show_err=false; 
function code_toggle_err() {
 if (code_show_err){
 $('div.output_stderr').hide();
 } else {
 $('div.output_stderr').show();
 }
 code_show_err = !code_show_err
} 
$( document ).ready(code_toggle_err);
</script>
To toggle on/off output_stderr, click <a href="javascript:code_toggle_err()">here</a>.''')

This only works for languages with are not whitespace delineated, but my solution is to remove all whitespace except for spaces, then add a newline after characters that usually delineate EOL (e.g. replace ';' with ';\n') then do the ubiquitous ^+i solution.

I use Python.

Example code, just replace the filenames:

python -c "import re; open(outfile,'w').write(re.sub('[\t\n\r]','',open(infile).read()).replace(';',';\n').replace('{','{\n').replace('}','}\n'))"

It 's not perfect (Example: for loops), but I like it.

For me adding DOCTYPE_PUBLIC worked:

transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty(OutputKeys.DOCTYPE_PUBLIC,"yes");
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "10");

When you subtract two dates in Oracle, you get the number of days between the two values. So you just have to multiply to get the result in minutes instead:

SELECT (date2 - date1) * 24 * 60 AS minutesBetween
FROM ...

Have you tried using the DefaultValueAttribute or ShouldSerialize and Reset methods in conjunction with the constructor? I feel like one of these two methods is necessary if you're making a class that might show up on the designer surface or in a property grid.

Hey you can just do one simple thing instead of using model to send parameter use HttpServletRequest object and do this

HttpServletRequest request;
request.setAttribute("param", "value")

now your parametrs will not be shown in your url header hope it works :)

I know the question is a few years old now, but expanding on Ivella's last idea, this bash script estimates the line count of a big file within seconds or less by measuring the size of one line and extrapolating from it:

#!/bin/bash
head -2 $1 | tail -1 > $1_oneline
filesize=$(du -b $1 | cut -f -1)
linesize=$(du -b $1_oneline | cut -f -1)
rm $1_oneline
echo $(expr $filesize / $linesize)

If you name this script lines.sh, you can call lines.sh bigfile.txt to get the estimated number of lines. In my case (about 6 GB, export from database), the deviation from the true line count was only 3%, but ran about 1000 times faster. By the way, I used the second, not first, line as the basis, because the first line had column names and the actual data started in the second line.

Uri has a constructor that should do this for you: new Uri(Uri baseUri, string relativeUri)

Here's an example:

Uri baseUri = new Uri("http://www.contoso.com");
Uri myUri = new Uri(baseUri, "catalog/shownew.htm");

Note from editor: Beware, this method does not work as expected. It can cut part of baseUri in some cases. See comments and other answers.

group - is a reserved word in MySQL, that's why you see such error.

#1064 - You have an error in your SQL syntax; check the manual that corresponds
        to your MySQL server version for the right syntax to use near 'group 
        RENAME TO member' at line 1

You need to wrap table name into backticks:

RENAME TABLE `group` TO `member`;

Sometimes you must change the name (or check to get it automatically from compiler).

Example:

Filename = amp2-rot.png

It is not working as:

PictureBoxName.Image = resources.GetObject("amp2-rot.png")

It works, just as amp2_rot for me:

 PictureBox_L1.Image = My.Resources.Resource.amp2_rot

You can try it by adding  

Return a generic 400 status code, and then process that client-side.

Or you can keep the 401, and not return the WWW-Authenticate header, which is really what the browser is responding to with the authentication popup. If the WWW-Authenticate header is missing, then the browser won't prompt for credentials.

In controller you can use MvcHtmlString

public class HomeController : Controller
{
    public ActionResult Index()
    {
        string rawHtml = "<HTML></HTML>";
        ViewBag.EncodedHtml = MvcHtmlString.Create(rawHtml);
        return View();
    }
}

In your View you can simply use that dynamic property which you set in your Controller like below

<div>
        @ViewBag.EncodedHtml
</div>

You can also specify the exact values for each gr

0 2,10,12,14,16,18,20 * * *

It stands for 2h00, 10h00, 12h00 and so on, till 20h00.

From the above answer, we have:

The comma, ",", means "and". If you are confused by the above line, remember that spaces are the field separators, not commas.

And from (Wikipedia page):

*    *    *    *    *  command to be executed
-    -    -    -    -
¦    ¦    ¦    ¦    ¦
¦    ¦    ¦    ¦    ¦
¦    ¦    ¦    ¦    +----- day of week (0 - 7) (0 or 7 are Sunday, or use names)
¦    ¦    ¦    +---------- month (1 - 12)
¦    ¦    +--------------- day of month (1 - 31)
¦    +-------------------- hour (0 - 23)
+------------------------- min (0 - 59)

Hope it helps :)

--

EDIT:

• don't miss the 1st 0 (zero) and the following space: it means "the minute zero", you can also set it to 15 (the 15th minute) or expressions like */15 (every minute divisible by 15, i.e. 0,15,30)

For completeness, if you want the two's-complement hexadecimal representation of a negative number, you can use the zero-fill-right shift >>> operator. For instance:

> (-1).toString(16)
"-1"

> ((-2)>>>0).toString(16)
"fffffffe"

There is however one limitation: JavaScript bitwise operators treat their operands as a sequence of 32 bits, that is, you get the 32-bits two's complement.

For someone who doesn't want to use inline JS.

<select data-select-name>
    <option value="">Select...</option>
    <option value="http://google.com">Google</option>
    <option value="http://yahoo.com">Yahoo</option>
</select>

<script type="text/javascript">
    document.addEventListener('DOMContentLoaded',function() {
        document.querySelector('select[data-select-name]').onchange=changeEventHandler;
    },false);

    function changeEventHandler(event) {
        window.location.href = this.options[this.selectedIndex].value;
    }
</script>

I'm not sure why you'd be getting subscript out of range unless your sheets weren't actually called Sheet1 or Sheet2. When I rename my Sheet2 to Sheet_2, I get that same problem.

In addition, some of your code seems the wrong way about (you paste before selecting the second sheet). This code works fine for me.

Sub OneCell()
    Sheets("Sheet1").Select
    Range("A1:A3").Copy
    Sheets("Sheet2").Select
    Range("b1:b3").Select
    ActiveSheet.Paste
End Sub

If you don't want to know about what the sheets are called, you can use integer indexes as follows:

Sub OneCell()
    Sheets(1).Select
    Range("A1:A3").Copy
    Sheets(2).Select
    Range("b1:b3").Select
    ActiveSheet.Paste
End Sub

You should also use <label for="checkbox1">Checkbox 1</label> because then people can click on the label text as well as the checkbox itself. Its also easier to style and at least in IE it will be highlighted when you tab through the page's controls.

<%= Html.CheckBox("cbNewColors", true) %><label for="cbNewColors">New colors</label>

This is not just a 'oh I could do it' thing. Its a significant user experience enhancement. Even if not all users know they can click on the label many will.