$this->db->select('id, name, price, author, category, language, ISBN, publish_date');

       $this->db->from('tbl_books');

Swift 3 Solution with a Done button

Don't forget to import SafariServices

if let url = URL(string: "http://www.yoururl.com/") {
            let vc = SFSafariViewController(url: url, entersReaderIfAvailable: true)
            present(vc, animated: true)
        }

You can't update with a number greater than 1 for datatype number(2,2) is because, the first parameter is the total number of digits in the number and the second one (.i.e 2 here) is the number of digits in decimal part. I guess you can insert or update data < 1. i.e. 0.12, 0.95 etc.

Please check NUMBER DATATYPE in NUMBER Datatype.

For me the cause of the issue was that the format of username was incorrect. It was earlierly specified as "mydomain\user". I removed the domain part and the error was gone.

PS I was using ServerBind authentication.

Not sure if this is stopping everyone else, but I resolved this by upgrading chromedriver and then ensuring that it was in a place that my user could read from (it seems like a lot of people encountering this are seeing it for permission reasons like me).

On Ubuntu 16.04: 1. Download chromedriver (version 2.37 for me) 2. Unzip the file 3. Install it somewhere sensible (I chose /usr/local/bin/chromedriver)

Doesn't even need to be owned by my user as long as it's globally executable (sudo chmod +x /usr/local/bin/chromedriver)

There were interesting answers but I didn't seem to find one to match my needs, the closest being from @chittrang-mishra which refers only to one specific function and not several toggles as in my app.

I did not want to use [hidden] to take advantage of *ngIf not even being a part of the DOM so I found the following solution which may not be the best for all as it suppresses the error instead of correcting it, but in my case where I know the final result is correct, it seems ok for my app.

What I did was implement AfterViewChecked, add constructor(private changeDetector : ChangeDetectorRef ) {} and then

ngAfterViewChecked(){
  this.changeDetector.detectChanges();
}

I hope this helps other as many others have helped me.

You can use either foreign key on many side of OneToMany relation (i.e. ManyToOne relation) or use ManyToMany (on any side) with unique constraint.

You can use the following code;

var example: String = "Hello World \r\n This is a new line"

I'm start to create own Perl script based on SQL::Translator module (GraphViz). Here are first results.

Yes. I use them for dynamically hiding/revealing the relevant part of a table, e.g. a course. Viz.

<table>
  <tbody id="day1" style="display:none">
    <tr><td>session1</td><tr>
    <tr><td>session2</td><tr>
  </tbody>
  <tbody id="day2">
    <tr><td>session3</td><tr>
    <tr><td>session4</td><tr>
  </tbody>
  <tbody id="day3" style="display:none">
    <tr><td>session5</td><tr>
    <tr><td>session6</td><tr>
  </tbody>
</table>

A button can be provided to toggle between everything or just the current day by manipulating tbodies without processing many rows individually.

After you've run the Inspect by Name, select all the locations, and make use of the Apply quick fixes to all the problems drop-down, and use either (or both) of Delete unused parameter(s) and Safe Delete.

Don't forget to hit Do Refactor afterwards.

Then you'll need to run another analysis, as the refactored code will no doubt reveal more unused declarations.

You can access elements of parent window from within an iframe by using window.parent like this:

// using jquery    
window.parent.$("#element_id");

Which is the same as:

// pure javascript
window.parent.document.getElementById("element_id");

And if you have more than one nested iframes and you want to access the topmost iframe, then you can use window.top like this:

// using jquery
window.top.$("#element_id");

Which is the same as:

// pure javascript
window.top.document.getElementById("element_id");

The recommendations from this article Extracting Data From Excel with SSIS resolved the issue for me.

I downloaded MS Access Database Engine 2010 32 bit driver from the link in that article.

Also set Project Configuration Properties for Debugging Run64BitRuntime = False

In SQL Server 2014 SSMS (Integration Service Catalog -> SSISDB -> Environments -> Projects for all Packages in Validate checked box 32 bit Runtime.

My SSIS packages are working now in both VS 2013 and SQL Server 2014 environments.

My issue was that I was declaring two fonts, and scss seems to expect that you declare the name of the font.

after your @font-face{} you must declare $my-font: "OpenSans3.0 or whatever";

and this for each font-face.

:-)

if anyone needs to extract the first part of the string then can try,

Query:

$s = "This_is_a_string_233718";

$text = $s."_".substr($s, 0, strrpos($s, "_"));

Output:

This_is_a_string

From http://www.codeproject.com/KB/recipes/wildcardtoregex.aspx:

public static string WildcardToRegex(string pattern)
{
    return "^" + Regex.Escape(pattern)
                      .Replace(@"\*", ".*")
                      .Replace(@"\?", ".")
               + "$";
}

So something like foo*.xls? will get transformed to ^foo.*\.xls.$.

Using the -u command-line switch works, but it is a little bit clumsy. It would mean that the program would potentially behave incorrectly if the user invoked the script without the -u option. I usually use a custom stdout, like this:

class flushfile:
  def __init__(self, f):
    self.f = f

  def write(self, x):
    self.f.write(x)
    self.f.flush()

import sys
sys.stdout = flushfile(sys.stdout)

... Now all your print calls (which use sys.stdout implicitly), will be automatically flushed.

Brad Oyler's answer is correct. But you will only receive one event. If you need to get constant updates of the scroll position, you should set the scrollEventThrottle prop, like so:

<ScrollView onScroll={this.handleScroll} scrollEventThrottle={16} >
  <Text>
    Be like water my friend …
  </Text>
</ScrollView>

And the event handler:

handleScroll: function(event: Object) {
  console.log(event.nativeEvent.contentOffset.y);
},

Be aware that you might run into performance issues. Adjust the throttle accordingly. 16 gives you the most updates. 0 only one.

Using the LOAD DATA INFILE SQL statement you can import the CSV file, but you can't update data. However, there is a trick you can use.

• Create another temporary table to use for the import

• Load onto this table from the CSC

  LOAD DATA LOCAL INFILE '/file.csv'
  INTO TABLE temp_table
  FIELDS TERMINATED BY ','
  LINES TERMINATED BY '\n'
  (field1, field2, field3); 
  

• UPDATE the real table joining the table

  UPDATE maintable
  INNER JOIN temp_table A USING (field1)
  SET maintable.field1 = temp_table.field1
  

This works perfectly fine

<select ng-model="contact.Title" ng-options="co for co in['Mr.','Ms.','Mrs.','Dr.','Prof.']">
    <option style="display:none" value=""></option>
</select>

the way it works is, that this gives the first option to be displayed before selecting something and the display:none removes it form the dropdown so if you want you can do

<select ng-model="contact.Title" ng-options="co for co in['Mr.','Ms.','Mrs.','Dr.','Prof.']">
    <option style="display:none" value="">select an option...</option>
</select>

and this will give you the select and option before selecting but once selected it will disappear, and it will not show up in the dropdown.

With google-drive-ftp-adapter I have been able to access the My Drive area of Google Drive with the FileZilla FTP client. However, I have not been able to access the Shared with me area.

You can configure which Google account credentials it uses by changing the account property in the configuration.properties file from default to the desired Google account name. See the instructions at http://www.andresoviedo.org/google-drive-ftp-adapter/

the simplest way i can think of is using rand function with str_pad

<?php
echo str_pad(rand(0,999), 5, "0", STR_PAD_LEFT);
?>

In above example , it will generate random number in range 0 to 999.

And having 5 digits.

Please find example below, it might help you

package jersey.rest.test;

import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.HEAD;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.core.Response;

@Path("/hello")
public class SimpleService {
    @GET
    @Path("/{param}")
    public Response getMsg(@PathParam("param") String msg) {
        String output = "Get:Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }

    @POST
    @Path("/{param}")
    public Response postMsg(@PathParam("param") String msg) {
        String output = "POST:Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }

    @POST
    @Path("/post")
    //@Consumes(MediaType.TEXT_XML)
    public Response postStrMsg( String msg) {
        String output = "POST:Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }

    @PUT
    @Path("/{param}")
    public Response putMsg(@PathParam("param") String msg) {
        String output = "PUT: Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }

    @DELETE
    @Path("/{param}")
    public Response deleteMsg(@PathParam("param") String msg) {
        String output = "DELETE:Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }

    @HEAD
    @Path("/{param}")
    public Response headMsg(@PathParam("param") String msg) {
        String output = "HEAD:Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }
}

for testing you can use any tool like RestClient (http://code.google.com/p/rest-client/)

We should be using --scan --pattern with redis 2.8 and later.

You can try using this wrapper on top of redis-cli. https://github.com/VijayantSoni/redis-helper

If anyone's still stuck on this, the easiest solution I found was to "Retarget Solution". In my case, the project was built of SDK 8.1, upgrading to VS2017 brought with it SDK 10.0.xxx.

To retarget solution: Project->Retarget Solution->"Select whichever SDK you have installed"->OK

From there on you can simply build/debug your solution. Hope it helps

    <?php
if (isset($_POST['birthdate'])) {
    $timestamp = strtotime($_POST['birthdate']); 
    $date=date('d',$timestamp);
    $month=date('m',$timestamp);
    $year=date('Y',$timestamp);
}
?>  

Here's a simple SQL that updates Mid_Name on the Name3 table using the Middle_Name field from Name:

update name3
set mid_name = name.middle_name
from name
where name3.person_id = name.person_id;

Old question but I stumbled here so why not take a shot at it since the question is seeking various perspective and not a definitive answer.

w3c may have its recommendations - which I care a lot - but want to rethink since the question is here.

Why does w3c consider domain names be case insensitive and leaves anything afterwards case insensitive ?

I am thinking that the rationale is that the domain part of the URL is hand typed by a user. Everything after being hyper text will be resolved by the machine (browser and server in the back).

Machines can handle case insensitivity better than humans (not the technical kind:)).

But the question is just because the machines CAN handle that should it be done that way ?

I mean what are the benefits of naming and accessing a resource sitting at hereIsTheResource vs hereistheresource ?

The lateral is very unreadable than the camel case one which is more readable. Readable to Humans (including the technical kind.)

So here are my points:-

Resource Path falls in the somewhere in the middle of programming structure and being close to an end user behind the browser sometimes.

Your URL (excluding the domain name) should be case insensitive if your users are expected to touch it or type it etc. You should develop your application to AVOID having users type the path as much as possible.

Your URL (excluding the domain name) should be case sensitive if your users would never type it by hand.

Conclusion

Path should be case sensitive. My points are weighing towards the case sensitive paths.

One way to see the contents would be:

for my_bucket_object in my_bucket.objects.all():
    print(my_bucket_object)

if you user $criteria, I recommend blow usage:

$criteria = new CDbCriteria();
$criteria->compare('email_id', 101);
$comments = EmailArchive::model()->findAll($criteria);

It seems the original author has found their solution, but for anyone else who gets here looking to add actual custom headers, if you have access to mod the generated Protocol code you can override GetWebRequest:

protected override System.Net.WebRequest GetWebRequest(Uri uri)
{
  System.Net.WebRequest request = base.GetWebRequest(uri);
  request.Headers.Add("myheader", "myheader_value");
  return request;
}

Make sure you remove the DebuggerStepThroughAttribute attribute if you want to step into it.

Yes, it is possible.

try:
   ...
except FirstException:
   handle_first_one()

except SecondException:
   handle_second_one()

except (ThirdException, FourthException, FifthException) as e:
   handle_either_of_3rd_4th_or_5th()

except Exception:
   handle_all_other_exceptions()

See: http://docs.python.org/tutorial/errors.html

The "as" keyword is used to assign the error to a variable so that the error can be investigated more thoroughly later on in the code. Also note that the parentheses for the triple exception case are needed in python 3. This page has more info: Catch multiple exceptions in one line (except block)

It is possible that recursion will be more expensive, depending on if the recursive function is tail recursive (the last line is recursive call). Tail recursion should be recognized by the compiler and optimized to its iterative counterpart (while maintaining the concise, clear implementation you have in your code).

I would write the algorithm in the way that makes the most sense and is the clearest for the poor sucker (be it yourself or someone else) that has to maintain the code in a few months or years. If you run into performance issues, then profile your code, and then and only then look into optimizing by moving over to an iterative implementation. You may want to look into memoization and dynamic programming.

On windows, in Git\etc\bash.bashrc I use (at the end of the file)

a(){
    git add $1  
    git status
}

and then in git bash simply write

$ a Config/

Use ` backticks for MYSQL reserved words...

table name "table" is reserved word for MYSQL...

so your query should be as follows...

$sql="INSERT INTO `table` (`username`, `password`)
VALUES
('$_POST[username]','$_POST[password]')";

Like explained in other answers you need to provide a comparison function. If you would like to keep the definition of that function close to the sort call (e.g. if it only makes sense for this sort) you can define it right there with boost::lambda. Use boost::lambda::bind to call the member function.

To e.g. sort by member variable or function data1:

#include <algorithm>
#include <vector>
#include <boost/lambda/bind.hpp>
#include <boost/lambda/lambda.hpp>
using boost::lambda::bind;
using boost::lambda::_1;
using boost::lambda::_2;

std::vector<myclass> object(10000);
std::sort(object.begin(), object.end(),
    bind(&myclass::data1, _1) < bind(&myclass::data1, _2));

Just write this simple line of code :-

button.performClick();

where button is the reference variable of Button class and defined as follows:-

private Button buttonToday ;
buttonToday = (Button) findViewById(R.id.buttonToday);

That's it.

As root on CentOS 7:

systemctl start memcached
systemctl stop memcached
systemctl restart memcached

To tell the service to start at reboot (ex chkconfig):

systemctl enable memcached

To tell the service to not start at reboot:

systemctl disable memcached

Checking Count() before the WHERE clause solved my problem. It is cheaper than ToList()

if (authUserList != null && _list.Count() > 0)
    _list = _list.Where(l => authUserList.Contains(l.CreateUserId));

Below is a fully functional example of what I believe you're trying to do (with a functional snippet).

Explanation

Based on your question, you seem to be modifying 1 property in state for all of your elements. That's why when you click on one, all of them are being changed.

In particular, notice that the state tracks an index of which element is active. When MyClickable is clicked, it tells the Container its index, Container updates the state, and subsequently the isActive property of the appropriate MyClickables.

Example

class Container extends React.Component {_x000D_
  state = {_x000D_
    activeIndex: null_x000D_
  }_x000D_
_x000D_
  handleClick = (index) => this.setState({ activeIndex: index })_x000D_
_x000D_
  render() {_x000D_
    return <div>_x000D_
      <MyClickable name="a" index={0} isActive={ this.state.activeIndex===0 } onClick={ this.handleClick } />_x000D_
      <MyClickable name="b" index={1} isActive={ this.state.activeIndex===1 } onClick={ this.handleClick }/>_x000D_
      <MyClickable name="c" index={2} isActive={ this.state.activeIndex===2 } onClick={ this.handleClick }/>_x000D_
    </div>_x000D_
  }_x000D_
}_x000D_
_x000D_
class MyClickable extends React.Component {_x000D_
  handleClick = () => this.props.onClick(this.props.index)_x000D_
  _x000D_
  render() {_x000D_
    return <button_x000D_
      type='button'_x000D_
      className={_x000D_
        this.props.isActive ? 'active' : 'album'_x000D_
      }_x000D_
      onClick={ this.handleClick }_x000D_
    >_x000D_
      <span>{ this.props.name }</span>_x000D_
    </button>_x000D_
  }_x000D_
}_x000D_
_x000D_
ReactDOM.render(<Container />, document.getElementById('app'))

button {_x000D_
  display: block;_x000D_
  margin-bottom: 1em;_x000D_
}_x000D_
_x000D_
.album>span:after {_x000D_
  content: ' (an album)';_x000D_
}_x000D_
_x000D_
.active {_x000D_
  font-weight: bold;_x000D_
}_x000D_
_x000D_
.active>span:after {_x000D_
  content: ' ACTIVE';_x000D_
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.6.1/react.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.6.1/react-dom.min.js"></script>_x000D_
<div id="app"></div>

Update: "Loops"

In response to a comment about a "loop" version, I believe the question is about rendering an array of MyClickable elements. We won't use a loop, but map, which is typical in React + JSX. The following should give you the same result as above, but it works with an array of elements.

// New render method for `Container`
render() {
  const clickables = [
    { name: "a" },
    { name: "b" },
    { name: "c" },
  ]

  return <div>
      { clickables.map(function(clickable, i) {
          return <MyClickable key={ clickable.name }
            name={ clickable.name }
            index={ i }
            isActive={ this.state.activeIndex === i }
            onClick={ this.handleClick }
          />
        } )
      }
  </div>
}

The attribute selectors are often used for inputs. This is the list of attribute selectors:

[title] All elements with the title attribute are selected.

[title=banana] All elements which have the 'banana' value of the title attribute.

[title~=banana] All elements which contain 'banana' in the value of the title attribute.

[title|=banana] All elements which value of the title attribute starts with 'banana'.

[title^=banana] All elements which value of the title attribute begins with 'banana'.

[title$=banana] All elements which value of the title attribute ends with 'banana'.

[title*=banana] All elements which value of the title attribute contains the substring 'banana'.

Reference: https://kolosek.com/css-selectors/

I use this when I need it:

const filterObject = (obj, condition) => {
    const filteredObj = {};
    Object.keys(obj).map(key => {
      if (condition(key)) {
        dataFiltered[key] = obj[key];
      }
    });
  return filteredObj;
}

client.py

import socket

s = socket.socket()
s.connect(('127.0.0.1',12345))
while True:
    str = raw_input("S: ")
    s.send(str.encode());
    if(str == "Bye" or str == "bye"):
        break
    print "N:",s.recv(1024).decode()
s.close()

server.py

import socket

s = socket.socket()
port = 12345
s.bind(('', port))
s.listen(5)
c, addr = s.accept()
print "Socket Up and running with a connection from",addr
while True:
    rcvdData = c.recv(1024).decode()
    print "S:",rcvdData
    sendData = raw_input("N: ")
    c.send(sendData.encode())
    if(sendData == "Bye" or sendData == "bye"):
        break
c.close()

This should be the code for a small prototype for the chatting app you wanted. Run both of them in separate terminals but then just check for the ports.

And while doing this, if you get error code 0x80040201, try the solution in DllRegisterServer failed with the error code 0x80040201, but make sure, you open command prompt as Run as Administrator.

FLAG_ACTIVITY_REORDER_TO_FRONT: If set in an Intent passed to Context.startActivity(), this flag will cause the launched activity to be brought to the front of its task's history stack if it is already running.

Intent i = new Intent(context, AActivity.class);
i.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
startActivity(i);

This one is noteworthy as well

<div ng-repeat="post in posts" ng-if="post.type=='article'">
  <h1>{{post.title}}</h1>
</div>

This comes up in Java 5 and later if you're using collections without type specifiers (e.g., Arraylist() instead of ArrayList<String>()). It means that the compiler can't check that you're using the collection in a type-safe way, using generics.

To get rid of the warning, just be specific about what type of objects you're storing in the collection. So, instead of

List myList = new ArrayList();

use

List<String> myList = new ArrayList<String>();

In Java 7 you can shorten generic instantiation by using Type Inference.

List<String> myList = new ArrayList<>();

My preference is to utilize the inline attribute. This will cause the icon to correctly scale with the size of the button.

    <button mat-button>
      <mat-icon inline=true>local_movies</mat-icon>
      Movies
    </button>

    <!-- Link button -->
    <a mat-flat-button color="accent" routerLink="/create"><mat-icon inline=true>add</mat-icon> Create</a>

I add this to my styles.css to:

• solve the vertical alignment problem of the icon inside the button
• material icon fonts are always a little too small compared to button text

button.mat-button .mat-icon,
a.mat-button .mat-icon,
a.mat-raised-button .mat-icon,
a.mat-flat-button .mat-icon,
a.mat-stroked-button .mat-icon {
  vertical-align: top;
  font-size: 1.25em;
}

Check out this snippet:

Private Sub openDialog()
    Dim fd As Office.FileDialog

    Set fd = Application.FileDialog(msoFileDialogFilePicker)

   With fd

      .AllowMultiSelect = False

      ' Set the title of the dialog box.
      .Title = "Please select the file."

      ' Clear out the current filters, and add our own.
      .Filters.Clear
      .Filters.Add "Excel 2003", "*.xls"
      .Filters.Add "All Files", "*.*"

      ' Show the dialog box. If the .Show method returns True, the
      ' user picked at least one file. If the .Show method returns
      ' False, the user clicked Cancel.
      If .Show = True Then
        txtFileName = .SelectedItems(1) 'replace txtFileName with your textbox

      End If
   End With
End Sub

I think this is what you are asking for.

if you are trying to use jquery in your electron app before adding jquery you should add it to your modules:

<script>
    if (typeof module === 'object') {
        window.module = module;
        module = undefined;
    }
</script>
<script src="js/jquery-3.5.1.min.js"></script>

I have always done it by creating a shortcut, which is not really much of a problem. I believe there is no way of doing it otherwise.

You should replace WebDriver wb = new FirefoxDriver(); with driver = new FirefoxDriver(); in your @Before Annotation.

As you are accessing driver object with null or you can make wb reference variable as global variable.

Briefly, with more detail below,

• window is the execution context and global object for that context's JavaScript
• document contains the DOM, initialized by parsing HTML
• screen describes the physical display's full screen

See W3C and Mozilla references for details about these objects. The most basic relationship among the three is that each browser tab has its own window, and a window has window.document and window.screen properties. The browser tab's window is the global context, so document and screen refer to window.document and window.screen. More details about the three objects are below, following Flanagan's JavaScript: Definitive Guide.

window

Each browser tab has its own top-level window object. Each <iframe> (and deprecated <frame>) element has its own window object too, nested within a parent window. Each of these windows gets its own separate global object. window.window always refers to window, but window.parent and window.top might refer to enclosing windows, giving access to other execution contexts. In addition to document and screen described below, window properties include

• setTimeout() and setInterval() binding event handlers to a timer
• location giving the current URL
• history with methods back() and forward() giving the tab's mutable history
• navigator describing the browser software

document

Each window object has a document object to be rendered. These objects get confused in part because HTML elements are added to the global object when assigned a unique id. E.g., in the HTML snippet

<body>
  <p id="holyCow"> This is the first paragraph.</p>
</body>

the paragraph element can be referenced by any of the following:

• window.holyCow or window["holyCow"]
• document.getElementById("holyCow")
• document.querySelector("#holyCow")
• document.body.firstChild
• document.body.children[0]

screen

The window object also has a screen object with properties describing the physical display:

• screen properties width and height are the full screen

• screen properties availWidth and availHeight omit the toolbar

The portion of a screen displaying the rendered document is the viewport in JavaScript, which is potentially confusing because we call an application's portion of the screen a window when talking about interactions with the operating system. The getBoundingClientRect() method of any document element will return an object with top, left, bottom, and right properties describing the location of the element in the viewport.

Set MYSQL timezone on server by logging to mysql server there set timezone value as required. For IST

SET SESSION time_zone = '+5:30';

Then run SELECT NOW();

For your example, Dirk's answer is perfect. If you instead had a data frame and wanted to add that sort of sequence as a column, you could also use group from groupdata2 (disclaimer: my package) to greedily divide the datapoints into groups.

# Attach groupdata2
library(groupdata2)
# Create a random data frame
df <- data.frame("x" = rnorm(27))
# Create groups with 5 members each (except last group)
group(df, n = 5, method = "greedy")
         x .groups
     <dbl> <fct>  
 1  0.891  1      
 2 -1.13   1      
 3 -0.500  1      
 4 -1.12   1      
 5 -0.0187 1      
 6  0.420  2      
 7 -0.449  2      
 8  0.365  2      
 9  0.526  2      
10  0.466  2      
# … with 17 more rows

There's a whole range of methods for creating this kind of grouping factor. E.g. by number of groups, a list of group sizes, or by having groups start when the value in some column differs from the value in the previous row (e.g. if a column is c("x","x","y","z","z") the grouping factor would be c(1,1,2,3,3).

FYI of people that have asked in the comments, this is what I actually used in projects:

function onLoad(loading, loaded) {
    if(document.readyState === 'complete'){
        return loaded();
    }
    loading();
    if (window.addEventListener) {
        window.addEventListener('load', loaded, false);
    }
    else if (window.attachEvent) {
        window.attachEvent('onload', loaded);
    }
};

onLoad(function(){
   console.log('I am waiting for the page to be loaded');
},
function(){
    console.log('The page is loaded');
});

You don't need Lodash or Ramda or any other extra dependency.

Just use the ES6 find() function in a functional way:

savedViews.find(el => el.description === view)

Sometimes you need to use 3rd-party libraries to get all the goodies that come with them. However, generally speaking, try avoiding dependencies when you don't need them. Dependencies can:

• bloat your bundled code size,
• you will have to keep them up to date,
• and they can introduce bugs or security risks

The accepted answer gives me this output

# bash date.sh
Time in seconds: 51
date.sh: line 12: unexpected EOF while looking for matching `"'
date.sh: line 21: syntax error: unexpected end of file

This is how I solved the issue

#!/bin/bash

date1=$(date --date 'now' +%s) #date since epoch in seconds at the start of script
somecommand
date2=$(date --date 'now' +%s) #date since epoch in seconds at the end of script
difference=$(echo "$((date2-$date1))") # difference between two values
date3=$(echo "scale=2 ; $difference/3600" | bc) # difference/3600 = seconds in hours
echo SCRIPT TOOK $date3 HRS TO COMPLETE # 3rd variable for a pretty output.

If you want to re-filter the json data you can use following method. Given example is getting all document data from couchdb.

{
    Gson gson = new Gson();
    String resultJson = restTemplate.getForObject(url+"_all_docs?include_docs=true", String.class);
    JSONObject object =  (JSONObject) new JSONParser().parse(resultJson);
    JSONArray rowdata = (JSONArray) object.get("rows");   
    List<Object>list=new ArrayList<Object>();   
    for(int i=0;i<rowdata.size();i++) {
        JSONObject index = (JSONObject) rowdata.get(i);
        JSONObject data = (JSONObject) index.get("doc");
        list.add(data);      
    }
    // convert your list to json
    String devicelist = gson.toJson(list);
    return devicelist;
}

If you use jquery.ui, try this code:

$.position.scrollbarWidth()

Best solution for MAC OS Catalina Xampp

1. Open Finder
2. Press Cmd + shift + C

3. Macintosh HD => Users => copy {username}

4. Open /Applications/XAMPP/xamppfiles/etc/httpd.conf

   Find User daemon edit daemon => {username}

5. Xampp Manage Server => Restart all

If you encounter problems in phpMyAdmin:

1. Browser (Chrome) restart

Goodluck

You just use the method

public Object put(Object key, Object value)

if the key was already present in the Map then the previous value is returned.

You can do it with substring method:

let a = "My test string";

a = a.substring(1);

console.log(a); // y test string

If you want to keep existing params and not expose yourself to XSS attacks, be sure to clean the params hash, leaving only the params that your app can be sending:

# inline
<%= link_to 'Link', params.slice(:sort).merge(per_page: 20) %>

If you use it in multiple places, clean the params in the controller:

# your_controller.rb
@params = params.slice(:sort, :per_page)

# view
<%= link_to 'Link', @params.merge(per_page: 20) %>

To match a substring inside parentheses excluding any inner parentheses you may use

\(([^()]*)\)

pattern. See the regex demo.

In JavaScript, use it like

var rx = /\(([^()]*)\)/g;

Pattern details

• \( - a ( char
• ([^()]*) - Capturing group 1: a negated character class matching any 0 or more chars other than ( and )
• \) - a ) char.

To get the whole match, grab Group 0 value, if you need the text inside parentheses, grab Group 1 value.

Most up-to-date JavaScript code demo (using matchAll):

const strs = ["I expect five hundred dollars ($500).", "I expect.. :( five hundred dollars ($500)."];
const rx = /\(([^()]*)\)/g;
strs.forEach(x => {
  const matches = [...x.matchAll(rx)];
  console.log( Array.from(matches, m => m[0]) ); // All full match values
  console.log( Array.from(matches, m => m[1]) ); // All Group 1 values
});

Legacy JavaScript code demo (ES5 compliant):

var strs = ["I expect five hundred dollars ($500).", "I expect.. :( five hundred dollars ($500)."];
var rx = /\(([^()]*)\)/g;


for (var i=0;i<strs.length;i++) {
  console.log(strs[i]);

  // Grab Group 1 values:
  var res=[], m;
  while(m=rx.exec(strs[i])) {
    res.push(m[1]);
  }
  console.log("Group 1: ", res);

  // Grab whole values
  console.log("Whole matches: ", strs[i].match(rx));
}

Here is my version. It's based on the answer by @Offirmo. I made it Dash-compatible and fixed the following testcase failure:

./compute-relative.sh "/a/b/c/de/f/g" "/a/b/c/def/g/" --> "../..f/g/"

Now:

CT_FindRelativePath "/a/b/c/de/f/g" "/a/b/c/def/g/" --> "../../../def/g/"

See the code:

# both $1 and $2 are absolute paths beginning with /
# returns relative path to $2/$target from $1/$source
CT_FindRelativePath()
{
    local insource=$1
    local intarget=$2

    # Ensure both source and target end with /
    # This simplifies the inner loop.
    #echo "insource : \"$insource\""
    #echo "intarget : \"$intarget\""
    case "$insource" in
        */) ;;
        *) source="$insource"/ ;;
    esac

    case "$intarget" in
        */) ;;
        *) target="$intarget"/ ;;
    esac

    #echo "source : \"$source\""
    #echo "target : \"$target\""

    local common_part=$source # for now

    local result=""

    #echo "common_part is now : \"$common_part\""
    #echo "result is now      : \"$result\""
    #echo "target#common_part : \"${target#$common_part}\""
    while [ "${target#$common_part}" = "${target}" -a "${common_part}" != "//" ]; do
        # no match, means that candidate common part is not correct
        # go up one level (reduce common part)
        common_part=$(dirname "$common_part")/
        # and record that we went back
        if [ -z "${result}" ]; then
            result="../"
        else
            result="../$result"
        fi
        #echo "(w) common_part is now : \"$common_part\""
        #echo "(w) result is now      : \"$result\""
        #echo "(w) target#common_part : \"${target#$common_part}\""
    done

    #echo "(f) common_part is     : \"$common_part\""

    if [ "${common_part}" = "//" ]; then
        # special case for root (no common path)
        common_part="/"
    fi

    # since we now have identified the common part,
    # compute the non-common part
    forward_part="${target#$common_part}"
    #echo "forward_part = \"$forward_part\""

    if [ -n "${result}" -a -n "${forward_part}" ]; then
        #echo "(simple concat)"
        result="$result$forward_part"
    elif [ -n "${forward_part}" ]; then
        result="$forward_part"
    fi
    #echo "result = \"$result\""

    # if a / was added to target and result ends in / then remove it now.
    if [ "$intarget" != "$target" ]; then
        case "$result" in
            */) result=$(echo "$result" | awk '{ string=substr($0, 1, length($0)-1); print string; }' ) ;;
        esac
    fi

    echo $result

    return 0
}

There's typically two levels of buffering involved:

1. Internal buffers
2. Operating system buffers

The internal buffers are buffers created by the runtime/library/language that you're programming against and is meant to speed things up by avoiding system calls for every write. Instead, when you write to a file object, you write into its buffer, and whenever the buffer fills up, the data is written to the actual file using system calls.

However, due to the operating system buffers, this might not mean that the data is written to disk. It may just mean that the data is copied from the buffers maintained by your runtime into the buffers maintained by the operating system.

If you write something, and it ends up in the buffer (only), and the power is cut to your machine, that data is not on disk when the machine turns off.

So, in order to help with that you have the flush and fsync methods, on their respective objects.

The first, flush, will simply write out any data that lingers in a program buffer to the actual file. Typically this means that the data will be copied from the program buffer to the operating system buffer.

Specifically what this means is that if another process has that same file open for reading, it will be able to access the data you just flushed to the file. However, it does not necessarily mean it has been "permanently" stored on disk.

To do that, you need to call the os.fsync method which ensures all operating system buffers are synchronized with the storage devices they're for, in other words, that method will copy data from the operating system buffers to the disk.

Typically you don't need to bother with either method, but if you're in a scenario where paranoia about what actually ends up on disk is a good thing, you should make both calls as instructed.

Addendum in 2018.

Note that disks with cache mechanisms is now much more common than back in 2013, so now there are even more levels of caching and buffers involved. I assume these buffers will be handled by the sync/flush calls as well, but I don't really know.

RFID Standards:

• 125 Khz (low-frequency) tags are write-once/read-many, and usually only contain a small (permanent) unique identification number.

• 13.56 Mhz (high-frequency) tags are usually read/write, they can typically store about 1 to 2 kilbytes of data in addition to their preset (permanent) unique ID number.

• 860-960 Mhz (ultra-high-frequency) tags are typically read/write and can have much larger information storage capacity (I think that 64 KB is the highest currently available for passive tags) in addition to their preset (permanent) unique ID number.
  
  

More Information

Most read/write tags can be locked to prevent further writing to specific data-blocks in the tag's internal memory, while leaving other blocks unlocked. Different tag manufacturers make their tags differently, though.

Depending on your intended application, you might have to program your own microcontroller to interface with an embedded RFID read/write module using a manufacturer-specific protocol. That's certainly a lot cheaper than buying a complete RFID read/write unit, as they can cost several thousand dollars. With a custom solution, you can build you own unit that does specifically what you want for as little as $200.

Links

RFID Journal

RFID Toys (Book) Website

SkyTek - RFID reader manufacturing company (you can buy their products through third-party retailers & wholesalers like Mouser)

Trossen Robotics - You can buy RFID tags and readers (125 Khz & 13.56 Mhz) from here, among other things

The documentation is not very clear about AngularJS routing. It talks about Hashbang and HTML5 mode. In fact, AngularJS routing operates in three modes:

• Hashbang Mode
• HTML5 Mode
• Hashbang in HTML5 Mode

For each mode there is a a respective LocationUrl class (LocationHashbangUrl, LocationUrl and LocationHashbangInHTML5Url).

In order to simulate URL rewriting you must actually set html5mode to true and decorate the $sniffer class as follows:

$provide.decorator('$sniffer', function($delegate) {
  $delegate.history = false;
  return $delegate;
});

I will now explain this in more detail:

Hashbang Mode

Configuration:

$routeProvider
  .when('/path', {
    templateUrl: 'path.html',
});
$locationProvider
  .html5Mode(false)
  .hashPrefix('!');

This is the case when you need to use URLs with hashes in your HTML files such as in

<a href="index.html#!/path">link</a>

In the Browser you must use the following Link: http://www.example.com/base/index.html#!/base/path

As you can see in pure Hashbang mode all links in the HTML files must begin with the base such as "index.html#!".

HTML5 Mode

Configuration:

$routeProvider
  .when('/path', {
    templateUrl: 'path.html',
  });
$locationProvider
  .html5Mode(true);

You should set the base in HTML-file

<html>
  <head>
    <base href="/">
  </head>
</html>

In this mode you can use links without the # in HTML files

<a href="/path">link</a>

Link in Browser:

http://www.example.com/base/path

Hashbang in HTML5 Mode

This mode is activated when we actually use HTML5 mode but in an incompatible browser. We can simulate this mode in a compatible browser by decorating the $sniffer service and setting history to false.

Configuration:

$provide.decorator('$sniffer', function($delegate) {
  $delegate.history = false;
  return $delegate;
});
$routeProvider
  .when('/path', {
    templateUrl: 'path.html',
  });
$locationProvider
  .html5Mode(true)
  .hashPrefix('!');

Set the base in HTML-file:

<html>
  <head>
    <base href="/">
  </head>
</html>

In this case the links can also be written without the hash in the HTML file

<a href="/path">link</a>

Link in Browser:

http://www.example.com/index.html#!/base/path

I'm using Android Studio 0.5.2. So if your version is lower than mine my answer may not work for you.

3 ways to add a new Jar to your project:

1. Menu under Files-->Project Structure
2. Just press 'F4'
3. under Project navigation, right clink on any java library and a context menu will show then click on 'Open Library Settings'

A Project Structure window will popup.

On the left column click on 'Libraries' then look at the right pane where there is a plus sign '+' and click on it then enter the path to your new library.

Make sure the new library is under the 'project\libs\' folder otherwise you may get a broken link when you save your project source code.

Here's the easy way to get access to the web.config settings anywhere in your C# project.

 Properties.Settings.Default

Use case:

litBodyText.Text = Properties.Settings.Default.BodyText;
litFootText.Text = Properties.Settings.Default.FooterText;
litHeadText.Text = Properties.Settings.Default.HeaderText;

Web.config file:

  <applicationSettings>
    <myWebSite.Properties.Settings> 
      <setting name="BodyText" serializeAs="String">
        <value>
          &lt;h1&gt;Hello World&lt;/h1&gt;
          &lt;p&gt;
      Ipsum Lorem
          &lt;/p&gt;
        </value>
      </setting>
      <setting name="HeaderText" serializeAs="String">
      My header text
        <value />
      </setting>
      <setting name="FooterText" serializeAs="String">
      My footer text
        <value />
      </setting>
    </myWebSite.Properties.Settings>
  </applicationSettings>

No need for special routines - everything is right there already. I'm surprised that no one has this answer for the best way to read settings from your web.config file.

To run app.js file check "main": "app.js" in your package.json file.

Then run command $ node app.js That should run your app and check.

I modified rushidesai1's answer to include a working example.

JsonMarshaller.java

import java.io.*;
import java.util.*;

public class JsonMarshaller<T> {
    private static ClassLoader loader = JsonMarshaller.class.getClassLoader();

    public static void main(String[] args) {
        try {
            JsonMarshallerUnmarshaller<Station> marshaller = new JsonMarshallerUnmarshaller<>(Station.class);
            String jsonString = read(loader.getResourceAsStream("data.json"));
            List<Station> stations = marshaller.unmarshal(jsonString);
            stations.forEach(System.out::println);
            System.out.println(marshaller.marshal(stations));
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @SuppressWarnings("resource")
    public static String read(InputStream ios) {
        return new Scanner(ios).useDelimiter("\\A").next(); // Read the entire file
    }
}

Output

Station [id=123, title=my title, name=my name]
Station [id=456, title=my title 2, name=my name 2]
[{"id":123,"title":"my title","name":"my name"},{"id":456,"title":"my title 2","name":"my name 2"}]

JsonMarshallerUnmarshaller.java

import java.io.*;
import java.util.List;

import com.fasterxml.jackson.core.*;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.introspect.JacksonAnnotationIntrospector;

public class JsonMarshallerUnmarshaller<T> {
    private ObjectMapper mapper;
    private Class<T> targetClass;

    public JsonMarshallerUnmarshaller(Class<T> targetClass) {
        AnnotationIntrospector introspector = new JacksonAnnotationIntrospector();

        mapper = new ObjectMapper();
        mapper.getDeserializationConfig().with(introspector);
        mapper.getSerializationConfig().with(introspector);

        this.targetClass = targetClass;
    }

    public List<T> unmarshal(String jsonString) throws JsonParseException, JsonMappingException, IOException {
        return parseList(jsonString, mapper, targetClass);
    }

    public String marshal(List<T> list) throws JsonProcessingException {
        return mapper.writeValueAsString(list);
    }

    public static <E> List<E> parseList(String str, ObjectMapper mapper, Class<E> clazz)
            throws JsonParseException, JsonMappingException, IOException {
        return mapper.readValue(str, listType(mapper, clazz));
    }

    public static <E> List<E> parseList(InputStream is, ObjectMapper mapper, Class<E> clazz)
            throws JsonParseException, JsonMappingException, IOException {
        return mapper.readValue(is, listType(mapper, clazz));
    }

    public static <E> JavaType listType(ObjectMapper mapper, Class<E> clazz) {
        return mapper.getTypeFactory().constructCollectionType(List.class, clazz);
    }
}

Station.java

public class Station {
    private long id;
    private String title;
    private String name;

    public long getId() {
        return id;
    }

    public void setId(long id) {
        this.id = id;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return String.format("Station [id=%s, title=%s, name=%s]", id, title, name);
    }
}

data.json

[{
  "id": 123,
  "title": "my title",
  "name": "my name"
}, {
  "id": 456,
  "title": "my title 2",
  "name": "my name 2"
}]

Despite @Saint Hill's answer if you consider the time complexity of str.toCharArray(),

the first one is faster even for very large strings. You can run the code below to see it for yourself.

        char [] ch = new char[1_000_000_00];
    String str = new String(ch); // to create a large string

    // ---> from here
    long currentTime = System.nanoTime();
    for (int i = 0, n = str.length(); i < n; i++) {
        char c = str.charAt(i);
    }
    // ---> to here
    System.out.println("str.charAt(i):"+(System.nanoTime()-currentTime)/1000000.0 +" (ms)");

    /**
     *   ch = str.toCharArray() itself takes lots of time   
     */
    // ---> from here
    currentTime = System.nanoTime();
    ch = str.toCharArray();
    for (int i = 0, n = str.length(); i < n; i++) {
        char c = ch[i];
    }
    // ---> to  here
    System.out.println("ch = str.toCharArray() + c = ch[i] :"+(System.nanoTime()-currentTime)/1000000.0 +" (ms)");

output:

str.charAt(i):5.492102 (ms)
ch = str.toCharArray() + c = ch[i] :79.400064 (ms)

As far as I can see from the implementation at https://github.com/angular/angular/blob/master/packages/common/http/src/params.ts

You must provide values separately - You are not able to avoid your loop.

There is also a constructor which takes a string as a parameter, but it is in form param=value&param2=value2 so there is no deal for You (in both cases you will finish with looping your object).

You can always report an issue/feature request to angular, what I strongly advise: https://github.com/angular/angular/issues

PS: Remember about difference between set and append methods ;)

@RequestMapping("/api/status")
public Map doSomething()
{
    return Collections.singletonMap("status", myService.doSomething());
}

PS. Works only for 1 value

You can run a script, or a more complex parameter to the RUN. Here is an example from a Dockerfile I've downloaded to look at previously:

RUN cd /opt && unzip treeio.zip && mv treeio-master treeio && \
    rm -f treeio.zip && cd treeio && pip install -r requirements.pip

Because of the use of '&&', it will only get to the final 'pip install' command if all the previous commands have succeeded.

In fact, since every RUN creates a new commit & (currently) an AUFS layer, if you have too many commands in the Dockerfile, you will use up the limits, so merging the RUNs (when the file is stable) can be a very useful thing to do.

Epoch reference date

An epoch reference date is a point on the timeline from which we count time. Moments before that point are counted with a negative number, moments after are counted with a positive number.

Many epochs in use

Why is 1 January 1970 00:00:00 considered the epoch time?

No, not the epoch, an epoch. There are many epochs in use.

This choice of epoch is arbitrary.

Major computers systems and libraries use any of at least a couple dozen various epochs. One of the most popular epochs is commonly known as Unix Time, using the 1970 UTC moment you mentioned.

While popular, Unix Time’s 1970 may not be the most common. Also in the running for most common would be January 0, 1900 for countless Microsoft Excel & Lotus 1-2-3 spreadsheets, or January 1, 2001 used by Apple’s Cocoa framework in over a billion iOS/macOS machines worldwide in countless apps. Or perhaps January 6, 1980 used by GPS devices?

Many granularities

Different systems use different granularity in counting time.

Even the so-called “Unix Time” varies, with some systems counting whole seconds and some counting milliseconds. Many database such as Postgres use microseconds. Some, such as the modern java.time framework in Java 8 and later, use nanoseconds. Some use still other granularities.

ISO 8601

Because there is so much variance in the use of an epoch reference and in the granularities, it is generally best to avoid communicating moments as a count-from-epoch. Between the ambiguity of epoch & granularity, plus the inability of humans to perceive meaningful values (and therefore miss buggy values), use plain text instead of numbers.

The ISO 8601 standard provides an extensive set of practical well-designed formats for expressing date-time values as text. These formats are easy to parse by machine as well as easy to read by humans across cultures.

These include:

• Date-only: 2019-01-23
• Moment in UTC: 2019-01-23T12:34:56.123456Z
• Moment with offset-from-UTC: 2019-01-23T18:04:56.123456+05:30
• Week of week-based-year: 2019-W23
• Ordinal date (1st to 366th day of year): 2019-234

For Bootstrap 3 for collapse, if you don't specify data-target on the anchor and rely on href to determine the target, the event will be prevented. If you use data-target you'll need to prevent the event yourself.

<button type="button" class="btn btn-default" data-toggle="collapse" data-target="#demo">Collapse This</button>

<div id="demo" class="collapse"> 
<p>Lorem ipsum dolor sit amet</p>
</div>

`e` in ['a', 'b', 'c']  # evaluates as False
`b` in ['a', 'b', 'c']  # evaluates as True

EDIT: With the clarification, new answer:

Note that PHP arrays are vastly different from Python's, combining arrays and dicts into one confused structure. Python arrays always have indices from 0 to len(arr) - 1, so you can check whether your index is in that range. try/catch is a good way to do it pythonically, though.

If you're asking about the hash functionality of PHP "arrays" (Python's dict), then my previous answer still kind of stands:

`baz` in {'foo': 17, 'bar': 19}  # evaluates as False
`foo` in {'foo': 17, 'bar': 19}  # evaluates as True

You just need

.parent-div { text-align: center }

I generally like to use my own extension for that:

string data = "THExxQUICKxxBROWNxxFOX";
var dataspt = data.Split("xx");
//>THE  QUICK  BROWN  FOX 


//the extension class must be declared as static
public static class StringExtension
{   
    public static string[] Split(this string str, string splitter)
    {
        return str.Split(new[] { splitter }, StringSplitOptions.None);
    }
}

This will however lead to an Exception, if Microsoft decides to include this method-overload in later versions. It is also the likely reason why Microsoft has not included this method in the meantime: At least one company I worked for, used such an extension in all their C# projects.

It may also be possible to conditionally define the method at runtime if it doesn't exist.

This Technical Note TN2328 from Apple Developer Library helped me a lot about Changes To Embedding Python Using Xcode 5.0.

Since 2020-05-07, the docker-compose spec also defines the "pull_policy" property for a service:

version: '3.7'

services:
  my-service:
    image: someimage/somewhere
    pull_policy: always

The docker-compose spec says:

pull_policy defines the decisions Compose implementations will make when it starts to pull images.

Possible values are (tl;dr, check spec for more details):

• always: always pull
• never: don't pull (breaks if the image can not be found)
• missing: pulls if the image is not cached
• build: always build or rebuild

Yes, most notably! I don't think the second one will work (and if it does, not very portably). The first one should be OK.

// HTML:
<input id="theId" value="test" onclick="doSomething(this)" />

// JavaScript:
function(elem){
    var value = elem.value;
    var id    = elem.id;
    ...
}

This should also work.

Update: the question was edited. Both of the solutions are now equivalent.

For the record, the lock wait timeout exception happens also when there is a deadlock and MySQL cannot detect it, so it just times out. Another reason might be an extremely long running query, which is easier to solve/repair, however, and I will not describe this case here.

MySQL is usually able to deal with deadlocks if they are constructed "properly" within two transactions. MySQL then just kills/rollback the one transaction that owns fewer locks (is less important as it will impact less rows) and lets the other one finish.

Now, let's suppose there are two processes A and B and 3 transactions:

Process A Transaction 1: Locks X
Process B Transaction 2: Locks Y
Process A Transaction 3: Needs Y => Waits for Y
Process B Transaction 2: Needs X => Waits for X
Process A Transaction 1: Waits for Transaction 3 to finish

(see the last two paragraph below to specify the terms in more detail)

=> deadlock 

This is a very unfortunate setup because MySQL cannot see there is a deadlock (spanned within 3 transactions). So what MySQL does is ... nothing! It just waits, since it does not know what to do. It waits until the first acquired lock exceeds the timeout (Process A Transaction 1: Locks X), then this will unblock the Lock X, which unlocks Transaction 2 etc.

The art is to find out what (which query) causes the first lock (Lock X). You will be able to see easily (show engine innodb status) that Transaction 3 waits for Transaction 2, but you will not see which transaction Transaction 2 is waiting for (Transaction 1). MySQL will not print any locks or query associated with Transaction 1. The only hint will be that at the very bottom of the transaction list (of the show engine innodb status printout), you will see Transaction 1 apparently doing nothing (but in fact waiting for Transaction 3 to finish).

The technique for how to find which SQL query causes the lock (Lock X) to be granted for a given transaction that is waiting is described here Tracking MySQL query history in long running transactions

If you are wondering what the process and the transaction is exactly in the example. The process is a PHP process. Transaction is a transaction as defined by innodb-trx-table. In my case, I had two PHP processes, in each I started a transaction manually. The interesting part was that even though I started one transaction in a process, MySQL used internally in fact two separate transactions (I don't have a clue why, maybe some MySQL dev can explain).

MySQL is managing its own transactions internally and decided (in my case) to use two transactions to handle all the SQL requests coming from the PHP process (Process A). The statement that Transaction 1 is waiting for Transaction 3 to finish is an internal MySQL thing. MySQL "knew" the Transaction 1 and Transaction 3 were actually instantiated as part of one "transaction" request (from Process A). Now the whole "transaction" was blocked because Transaction 3 (a subpart of "transaction") was blocked. Because "transaction" was not able to finish the Transaction 1 (also a subpart of the "transaction") was marked as not finished as well. This is what I meant by "Transaction 1 waits for Transaction 3 to finish".

[on hold: broken in Chrome 72; reported to work in Chrome 71]

The "Quick Language Switcher" extension may help too: https://chrome.google.com/webstore/detail/quick-language-switcher/pmjbhfmaphnpbehdanbjphdcniaelfie

The Quick Language Switcher extension allows the user to supersede the locale the browser is currently using in favor of the value chosen through the extension.

SELECT * FROM table WHERE col >= '2010-10-01' AND col <= '2010-10-31'

Description of the possible values:

• left: No floating elements allowed on the left side
• right: No floating elements allowed on the right side
• both: No floating elements allowed on either the left or the right side
• none: Default. Allows floating elements on both sides
• inherit: Specifies that the value of the clear property should be inherited from the parent element

Source: w3schools.com

The simplest I've been able to come up with is:

In [1]: import numpy as np

In [2]: arr = np.array([1, 3, 2, 4, 5])

In [3]: arr.argsort()[-3:][::-1]
Out[3]: array([4, 3, 1])

This involves a complete sort of the array. I wonder if numpy provides a built-in way to do a partial sort; so far I haven't been able to find one.

If this solution turns out to be too slow (especially for small n), it may be worth looking at coding something up in Cython.

Better if SQL will be optimized with addion of LIMIT 1 in the end:

$query = "select id from games LIMIT 1";

SO ANSWER IS (works on php 5.6.3):

If you want to get first item of first row(even if it is not ID column):

queryExec($query) -> fetch_array()[0];

If you want to get first row(single item from DB)

queryExec($query) -> fetch_assoc();

If you want to some exact column from first row

queryExec($query) -> fetch_assoc()['columnName'];

or need to fix query and use first written way :)

If you want to commit on top of the current HEAD with the exact state at a different commit, undoing all the intermediate commits, then you can use reset to create the correct state of the index to make the commit.

# Reset the index and working tree to the desired tree
# Ensure you have no uncommitted changes that you want to keep
git reset --hard 56e05fced

# Move the branch pointer back to the previous HEAD
git reset --soft HEAD@{1}

git commit -m "Revert to 56e05fced"

Answer to the original question:

os.urandom(n)

Quote from: http://docs.python.org/2/library/os.html

Return a string of n random bytes suitable for cryptographic use.

This function returns random bytes from an OS-specific randomness source. The returned data should be unpredictable enough for cryptographic applications, though its exact quality depends on the OS implementation. On a UNIX-like system this will query /dev/urandom, and on Windows it will use CryptGenRandom. If a randomness source is not found, NotImplementedError will be raised.

For an easy-to-use interface to the random number generator provided by your platform, please see random.SystemRandom.

I arrived here trying to install Appium. Adding my answer in case other folks land here for the same issue.

appium-doctor --ios

... bunch of stuff...

WARN AppiumDoctor ? Error running xcrun simctl

... bunch of stuff...

info AppiumDoctor ### Manual Fixes Needed ###

info AppiumDoctor The configuration cannot be automatically fixed, please do the following first:

WARN AppiumDoctor ? Manually install Xcode, and make sure 'xcode-select -p' command shows proper path like '/Applications/Xcode.app/Contents/Developer'

In my case

xcode-select -p

/Library/Developer/CommandLineTools

which appeared wrong...but I knew I had recently updated Xcode and the command line tools

so...

sudo xcode-select -r (sudo required)

then...

xcode-select -p
/Applications/Xcode.app/Contents/Developer

After this, no warning. Appium-doctor returned clean.

Did you maybe use some <tab> instead of spaces?

Try remove all the spaces before the code and readd them using <space> characters, just to be sure it's not a <tab>.

just write in your css file like bellow

background:url("images/logo.jpg")

this problem can be solved by installing the latest libstdc++.

$ sudo add-apt-repository ppa:ubuntu-toolchain-r/test
$ sudo apt-get update
$ sudo apt-get install libstdc++6-7-dbg

The Tumbler V2 API provides a pure JSON response but requires jumping through a few hoops:

1. Register an application
2. Get your "OAuth Consumer Key" which you'll find when editing your application from the apps page
3. Use any of the methods that only require an API Key for authentication as this can be passed in the URL, e.g. posts
4. Enjoy your JSON response!

Example URL: http://api.tumblr.com/v2/blog/puppygifs.tumblr.com/posts/photo?api_key=YOUR_KEY_HERE

Result showing tree structure in Fiddler:

In Python, curly braces are used to define a dictionary.

a={'one':1, 'two':2, 'three':3}
a['one']=1
a['three']=3

In other languages, { } are used as part of the flow control. Python however used indentation as its flow control because of its focus on readable code.

for entry in entries:
     code....

There's a little easter egg in Python when it comes to braces. Try running this on the Python Shell and enjoy.

from __future__ import braces

puts call the to_s of each argument and adds a new line to each string, if it does not end with new line. print just output each argument by calling their to_s.

for example: puts "one two": one two

{new line}

puts "one two\n": one two

{new line} #puts will not add a new line to the result, since the string ends with a new line

print "one two": one two

print "one two\n": one two

{new line}

And there is another way to output: p

For each object, directly writes obj.inspect followed by a newline to the program’s standard output.

It is helpful to output debugging message. p "aa\n\t": aa\n\t

The preprocessor is looking for StdCUtil/split.h in

• ./ (i.e. /root/Core/, the directory that contains the #include statement). So ./ + StdCUtil/split.h = ./StdCUtil/split.h and the file is missing

and in

• $INC_DIR (i.e. ../StdCUtil/ = /root/Core/../StdCUtil/ = /root/StdCUtil/). So ../StdCUtil/ + StdCUtil/split.h = ../StdCUtil/StdCUtil/split.h and the file is missing

You can fix the error changing the $INC_DIR variable (best solution):

$INC_DIR = ../

or the include directive:

#include "split.h"

but in this way you lost the "path syntax" that makes it very clear what namespace or module the header file belongs to.

Reference:

• C++ #include semantics

EDIT/UPDATE

It should also be

CXX = g++
CXXFLAGS = -c -Wall -I$(INC_DIR)

...

%.o: %.cpp $(DEPS)
    $(CXX) -o $@ $< $(CXXFLAGS)

You need execute permission on your static files directory. Also they need to be chown'ed by your nginx user and group.

If you are asking whether there's shorthand version of operator .. - no there isn't. You cannot write a ..= b. You'll have to type it in full: filename = filename .. ".tmp"

Firefox 3.0 and higher have disabled setting location by default. resizable and status are also disabled by default. You can verify this by typing `about:config' in your address bar and filtering by "dom". The items of interest are:

• dom.disable_window_open_feature.location
• dom.disable_window_open_feature.resizable
• dom.disable_window_open_feature.status

You can get further information at the Mozilla Developer site. What this basically means, though, is that you won't be able to do what you want to do.

One thing you might want to do (though it won't solve your problem), is put quotes around your window feature parameters, like so:

window.open('/pageaddress.html','winname','directories=no,titlebar=no,toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no,width=400,height=350');

dir /s /b /a:d>output.txt will port it to a text file

What's the usual way of actually running the tests

I use Python 3.6.2

cd new_project

pytest test/test_antigravity.py

To install pytest: sudo pip install pytest

I didn't set any path variable and my imports are not failing with the same "test" project structure.

I commented out this stuff: if __name__ == '__main__' like this:

test_antigravity.py

import antigravity

class TestAntigravity(unittest.TestCase):

    def test_something(self):

        # ... test stuff here


# if __name__ == '__main__':
# 
#     if __package__ is None:
# 
#         import something
#         sys.path.append(path.dirname(path.dirname(path.abspath(__file__))))
#         from .. import antigravity
# 
#     else:
# 
#         from .. import antigravity
# 
#     unittest.main()

Others have suggested ways to make newlist after filtering e.g.

newl = [x for x in l if x not in [2,3,7]]

or

newl = filter(lambda x: x not in [2,3,7], l) 

but from your question it looks you want in-place modification for that you can do this, this will also be much much faster if original list is long and items to be removed less

l = range(1,10)
for o in set([2,3,7,11]):
    try:
        l.remove(o)
    except ValueError:
        pass

print l

output: [1, 4, 5, 6, 8, 9]

I am checking for ValueError exception so it works even if items are not in orginal list.

Also if you do not need in-place modification solution by S.Mark is simpler.

It's not smart enough to realize it's still a "vector" in math terms.

Say rather that it's smart enough to recognize a difference in dimensionality. :-)

I think the simplest thing you can do is select that row positionally using iloc, which gives you a Series with the columns as the new index and the values as the values:

>>> df = pd.DataFrame([list(range(5))], columns=["a{}".format(i) for i in range(5)])
>>> df
   a0  a1  a2  a3  a4
0   0   1   2   3   4
>>> df.iloc[0]
a0    0
a1    1
a2    2
a3    3
a4    4
Name: 0, dtype: int64
>>> type(_)
<class 'pandas.core.series.Series'>

If your problem is only with function overloading (you need to check if 'parameters' parameter is 'parameters' and not 'callback'), i would recommend you don't bother about argument type and
use this approach. The idea is simple - use literal objects to combine your parameters:

function getData(id, opt){
    var data = voodooMagic(id, opt.parameters);
    if (opt.callback!=undefined)
      opt.callback.call(data);
    return data;         
}

getData(5, {parameters: "1,2,3", callback: 
    function(){for (i=0;i<=1;i--)alert("FAIL!");}
});

I just went through this on Mountain Lion. Homebrew blocked on libiconv which it thought was missing but was actually up to date. After an hour of trying to get it to recognize libiconv, I gave up and installed it the old fashion way, which took all of five minutes...

(download your php version)
$ wget http://www.php.net/get/php-5.3.21.tar.gz/from/a/mirror
$ tar -xvzf php-5.3.21.tar.gz
$ cd php-5.3.21/ext/mcrypt
$ phpize
$ ./configure
$ make
$ make test
$ sudo make install 

mcrypt.so is now in your PHP ext dir (/usr/lib/php/extensions/no-debug-non-zts-20090626/ in my case), now you need to add to php.ini as a module

$ vi /etc/php.ini
$ (insert) extension=mcrypt.so
$ sudo apachectl restart

Done - no brew necessary. HTH someone.

It sounds like you may be wanting to access the viewport of the device. You can do this by inserting this meta tag in your header.

<meta name="viewport" content="width=device-width, initial-scale=1.0">

http://www.w3schools.com/css/css_rwd_viewport.asp

Label myLabel = new Label (); myLabel.Content = "Hello World!";

Pydev for Eclipse, as others have mentioned, is good.

Netbeans has a beta Python plugin that is a little rough around the edges, but could turn into something really cool.

Additionally there is a long list of programming centric text editors for the mac, that may or may not fit your needs.

• Textmate - costs money, people love this program, but I haven't used it enough to see what all the fuss is about.
• Jedit - Java based text editor, has some nice features, but the startup time isn't great (due to Java).
• CarbonEmacs - Decent Emacs port.
• AquaEmacs - Better Emacs port.
• TextWrangler - Lite, free (as in beer) verision of BBEdit.
• BBEdit - The old guard. The defacto editor before Textmate stole its limelight. Expensive.
• Smultron - Very nice editor, the UI is similar to Textmate.
• Idle - Python's own little editor, has some nice features, but also some major problems. I've personally found it too unstable for my usage.
• Sublime Text - This is really sweet text editor that has some surprisingly good Python support.
• Pycharm - Another solid full on IDE for Python.

I would imagine you could do it by setting up a transparent proxy, using something like charles and re-direct traffic that way

For windows Go inside MongoDB\Server\4.0\bin folder and open mongod.cfg file in any text editor. Then locate the line that specifies the dbPath param. The line looks something similar

dbPath: D:\Program Files\MongoDB\Server\4.0\data

On Windows gvim just select "Lucida Console" font.

The concept of leading zero is meaningless for an int, which is what you have. It is only meaningful, when printed out or otherwise rendered as a string.

Console.WriteLine("{0:0000000}", FileRecordCount);

Forgot to end the double quotes!

I think np.isnan(np.min(X)) should do what you want.

use mode1.name() or String.valueOf(Modes.mode1)

Use Thread.sleep(long millis).

Causes the currently executing thread to sleep (temporarily cease execution) for the specified number of milliseconds, subject to the precision and accuracy of system timers and schedulers. The thread does not lose ownership of any monitors.

One minute would be (60*1000) = 60000 milliseconds.

For example, this loop will print the current time once every 5 seconds:

    try {
        while (true) {
            System.out.println(new Date());
            Thread.sleep(5 * 1000);
        }
    } catch (InterruptedException e) {
        e.printStackTrace();
    }

If your sleep period becomes too large for int, explicitly compute in long (e.g. 1000L).

PHP preg functions needs your regex to be wrapped with a delimiter character, which can be any character. You can't use this delimiter character without escaping inside the regex. This should work (here the delimiter character is /):

preg_match('/\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}/', '2008-09-01 12:35:45');

// or this, to allow matching 0:00:00 time too.
preg_match('/\d{4}-\d{2}-\d{2} \d{1,2}:\d{2}:\d{2}/', '2008-09-01 12:35:45');

If you need to match lines that contain only datetime, add ^ and $ at the beginning and end of the regex.

preg_match('/^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}$/', '2008-09-01 12:35:45');

Link to PHP Manual's preg_match()

You will also have to look in your system path. Python puts itself there and does not remove itself: http://www.computerhope.com/issues/ch000549.htm

Your problems probably started because your python path is pointing to the wrong one.

Here's a batch file, called base64encode.bat, that encodes base64.

@echo off
if not "%1" == "" goto :arg1exists
echo usage: base64encode input-file [output-file]
goto :eof
:arg1exists
set base64out=%2
if "%base64out%" == "" set base64out=con 
(
  set base64tmp=base64.tmp
  certutil -encode "%1" %base64tmp% > nul
  findstr /v /c:- %base64tmp%
  erase %base64tmp%
) > %base64out%

Here's another option. It works by putting an ActiveX ComboBox on top of the cell with validation enabled, and then providing autocomplete in the ComboBox instead.

Option Explicit

' Autocomplete - replacing validation lists with ActiveX ComboBox
'
' Usage:
'   1. Copy this code into a module named m_autocomplete
'   2. Go to Tools / References and make sure "Microsoft Forms 2.0 Object Library" is checked
'   3. Copy and paste the following code to the worksheet where you want autocomplete
'      ------------------------------------------------------------------------------------------------------
'      - autocomplete
'      Private Sub Worksheet_SelectionChange(ByVal Target As Range)
'          m_autocomplete.SelectionChangeHandler Target
'      End Sub
'      Private Sub AutoComplete_Combo_KeyDown(ByVal KeyCode As msforms.ReturnInteger, ByVal Shift As Integer)
'          m_autocomplete.KeyDownHandler KeyCode, Shift
'      End Sub
'      Private Sub AutoComplete_Combo_Click()
'          m_autocomplete.AutoComplete_Combo_Click
'      End Sub
'      ------------------------------------------------------------------------------------------------------

' When the combobox is clicked, it should dropdown (expand)
Public Sub AutoComplete_Combo_Click()
    Dim ws As Worksheet: Set ws = ActiveSheet
    Dim cbo As OLEObject: Set cbo = GetComboBoxObject(ws)
    Dim cb As ComboBox: Set cb = cbo.Object
    If cbo.Visible Then cb.DropDown
End Sub

' Make it easier to navigate between cells
Public Sub KeyDownHandler(ByVal KeyCode As MSForms.ReturnInteger, ByVal Shift As Integer)
    Const UP As Integer = -1
    Const DOWN As Integer = 1

    Const K_TAB_______ As Integer = 9
    Const K_ENTER_____ As Integer = 13
    Const K_ARROW_UP__ As Integer = 38
    Const K_ARROW_DOWN As Integer = 40

    Dim direction As Integer: direction = 0

    If Shift = 0 And KeyCode = K_TAB_______ Then direction = DOWN
    If Shift = 0 And KeyCode = K_ENTER_____ Then direction = DOWN
    If Shift = 1 And KeyCode = K_TAB_______ Then direction = UP
    If Shift = 1 And KeyCode = K_ENTER_____ Then direction = UP
    If Shift = 1 And KeyCode = K_ARROW_UP__ Then direction = UP
    If Shift = 1 And KeyCode = K_ARROW_DOWN Then direction = DOWN

    If direction <> 0 Then ActiveCell.Offset(direction, 0).Activate

    AutoComplete_Combo_Click
End Sub

Public Sub SelectionChangeHandler(ByVal Target As Range)
    On Error GoTo errHandler

    Dim ws As Worksheet: Set ws = ActiveSheet
    Dim cbo As OLEObject: Set cbo = GetComboBoxObject(ws)
    Dim cb As ComboBox: Set cb = cbo.Object

    ' Try to hide the ComboBox. This might be buggy...
    If cbo.Visible Then
        cbo.Left = 10
        cbo.Top = 10
        cbo.ListFillRange = ""
        cbo.LinkedCell = ""
        cbo.Visible = False
        Application.ScreenUpdating = True
        ActiveSheet.Calculate
        ActiveWindow.SmallScroll
        Application.WindowState = Application.WindowState
        DoEvents
    End If

    If Not HasValidationList(Target) Then GoTo ex

    Application.EnableEvents = False

    ' TODO: the code below is a little fragile
    Dim lfr As String
    lfr = Mid(Target.Validation.Formula1, 2)
    lfr = Replace(lfr, "INDIREKTE", "") ' norwegian
    lfr = Replace(lfr, "INDIRECT", "") ' english
    lfr = Replace(lfr, """", "")
    lfr = Application.Range(lfr).Address(External:=True)

    cbo.ListFillRange = lfr
    cbo.Visible = True
    cbo.Left = Target.Left
    cbo.Top = Target.Top
    cbo.Height = Target.Height + 5
    cbo.Width = Target.Width + 15
    cbo.LinkedCell = Target.Address(External:=True)
    cbo.Activate
    cb.SelStart = 0
    cb.SelLength = cb.TextLength
    cb.DropDown

    GoTo ex

errHandler:
    Debug.Print "Error"
    Debug.Print Err.Number
    Debug.Print Err.Description
ex:
    Application.EnableEvents = True
End Sub

' Does the cell have a validation list?
Function HasValidationList(Cell As Range) As Boolean
    HasValidationList = False
    On Error GoTo ex
    If Cell.Validation.Type = xlValidateList Then HasValidationList = True
ex:
End Function

' Retrieve or create the ComboBox
Function GetComboBoxObject(ws As Worksheet) As OLEObject
    Dim cbo As OLEObject
    On Error Resume Next
    Set cbo = ws.OLEObjects("AutoComplete_Combo")
    On Error GoTo 0
    If cbo Is Nothing Then
        'Dim EnableSelection As Integer: EnableSelection = ws.EnableSelection
        Dim ProtectContents As Boolean: ProtectContents = ws.ProtectContents

        Debug.Print "Lager AutoComplete_Combo"
        If ProtectContents Then ws.Unprotect
        Set cbo = ws.OLEObjects.Add(ClassType:="Forms.ComboBox.1", Link:=False, DisplayAsIcon:=False, _
                            Left:=50, Top:=18.75, Width:=129, Height:=18.75)
        cbo.name = "AutoComplete_Combo"
        cbo.Object.MatchRequired = True
        cbo.Object.ListRows = 12
        If ProtectContents Then ws.Protect
    End If
    Set GetComboBoxObject = cbo
End Function

Please find below the easy way :

XSSFCellStyle style = workbook.createCellStyle();
style.setBorderTop((short) 6); // double lines border
style.setBorderBottom((short) 1); // single line border
XSSFFont font = workbook.createFont();
font.setFontHeightInPoints((short) 15);
font.setBoldweight(XSSFFont.BOLDWEIGHT_BOLD);
style.setFont(font);                 

Row row = sheet.createRow(0);   
Cell cell0 = row.createCell(0);
cell0.setCellValue("Nav Value");
cell0.setCellStyle(style);  
for(int j = 0; j<=3; j++)
row.getCell(j).setCellStyle(style);

In this case it is just coding style.

Use of var is only necessary when dealing with anonymous types.
In other situations it's a matter of taste.

Below gives the total physical memory.

gwmi Win32_OperatingSystem | Measure-Object -Property TotalVisibleMemorySize -Sum | % {[Math]::Round($_.sum/1024/1024)}

The trick is to add both max-height: 100%; and max-width: 100%; to .container img. Example CSS:

.container {
  width: 300px;
  border: dashed blue 1px;
}

.container img {
  max-height: 100%;
  max-width: 100%;
}

In this way, you can vary the specified width of .container in whatever way you want (200px or 10% for example), and the image will be no larger than its natural dimensions. (You could specify pixels instead of 100% if you didn't want to rely on the natural size of the image.)

Here's the whole fiddle: http://jsfiddle.net/KatieK/Su28P/1/

I looked all over for an easy solution and found this code that worked for me. The right div is a third column which I left in for readability sake.

Here is the HTML:

<div class="container">
  <div class="row">
    <div class="left">
      <p>PHONE & FAX:</p>
    </div>
    <div class="middle">
      <p>+43 99 554 28 53</p>
    </div>
    <div class="right"> </div>
  </div>
  <div class="row">
    <div class="left">
      <p>Cellphone Gert:</p>
    </div>
    <div class="middle">
      <p>+43 99 302 52 32</p>
    </div>
    <div class="right"> </div>
  </div>
  <div class="row">
    <div class="left">
      <p>Cellphone Petra:</p>
    </div>
    <div class="middle">
      <p>+43 99 739 38 84</p>
    </div>
    <div class="right"> </div>
  </div>
</div>

And the CSS:

.container {
    display: table;
    }
.row  {
    display: table-row;
    }
.left, .right, .middle {
    display: table-cell;
    padding-right: 25px;
    }
.left p, .right p, .middle p {
    margin: 1px 1px;
   }

Are you mixing C and C++? One issue that can occur is that the declarations in the .h file for a .c file need to be surrounded by:

#if defined(__cplusplus)
  extern "C" {                 // Make sure we have C-declarations in C++ programs
#endif

and:

#if defined(__cplusplus)
  }
#endif

Note: if unable / unwilling to modify the .h file(s) in question, you can surround their inclusion with extern "C":

extern "C" {
#include <abc.h>
} //extern

I also faced this problem . You can try any of these steps :

• Try to kill that process
• Check whether another tomcat instance is running in your machine or not. ( use : ps -A )

There should also be a YEAR().

As for comparing, you could compare dates that are the first days of those years and months, or you could convert the year/month pair into a number suitable for comparison (i.e. bigger = later). (Exercise left to the reader. For hints, read about the ISO date format.)

Or you could use multiple comparisons (i.e. years first, then months).

Probably the best alternative for Java 8 or newer is to use the Optional class.

Optional stringToUse = Optional.of("optional is there");
stringToUse.ifPresent(System.out::println);

This is especially handy for long chains of possible null values. Example:

Optional<Integer> i = Optional.ofNullable(wsObject.getFoo())
    .map(f -> f.getBar())
    .map(b -> b.getBaz())
    .map(b -> b.getInt());

Example on how to throw exception on null:

Optional optionalCarNull = Optional.ofNullable(someNull);
optionalCarNull.orElseThrow(IllegalStateException::new);

Java 7 introduced the Objects.requireNonNull method which can be handy when something should be checked for non-nullness. Example:

String lowerVal = Objects.requireNonNull(someVar, "input cannot be null or empty").toLowerCase();

the correct syntax is -

with t1
as
(select * from tab1
where conditions...
),
t2
as
(select * from tab2
where conditions...
(you can access columns of t1 here as well)
)
select * from t1, t2
where t1.col1=t2.col2;

A simple way but dangerous way to do this would be to use eval(). eval() executes the string passed to it as code. The dangerous thing about this is that if this string is gained from user input, they could maliciously execute code that could break the computer. I would get the input, check it with a regex, and then execute it if you determine if it's OK. If it's only going to be in the format "number operation number", then you could use a simple regex:

import re
s = raw_input('What is your math problem? ')
if re.findall('\d+? *?\+ *?\d+?', s):
  print eval(s)
else:
  print "Try entering a math problem"

Otherwise, you would have to come up with something a bit stricter than this. You could also do it conversely, using a regex to find if certain things are not in it, such as numbers and operations. Also you could check to see if the input contains certain commands.

the accepted solution by Patrick Evans doesn't take scrolling into account. i've slightly changed his jsfiddle to demonstrate this:

css: add some random height to make sure we got some space to scroll

body{height:3000px;} 

js: set some scroll position

jQuery(window).scrollTop(100);

as a result the two reported values differ now: http://jsfiddle.net/sNLMe/66/

UPDATE Feb. 14 2015

there is a pull request for jqLite waiting, including its own offset method (taking care of current scroll position). have a look at the source in case you want to implement it yourself: https://github.com/angular/angular.js/pull/3799/files

If you use nested sets (sometimes referred to as Modified Pre-order Tree Traversal) you can extract the entire tree structure or any subtree within it in tree order with a single query, at the cost of inserts being more expensive, as you need to manage columns which describe an in-order path through thee tree structure.

For django-mptt, I used a structure like this:

id  parent_id  tree_id  level  lft  rght
--  ---------  -------  -----  ---  ----
 1       null        1      0    1    14
 2          1        1      1    2     7
 3          2        1      2    3     4
 4          2        1      2    5     6
 5          1        1      1    8    13
 6          5        1      2    9    10
 7          5        1      2    11   12

Which describes a tree which looks like this (with id representing each item):

 1
 +-- 2
 |   +-- 3
 |   +-- 4
 |
 +-- 5
     +-- 6
     +-- 7

Or, as a nested set diagram which makes it more obvious how the lft and rght values work:

 __________________________________________________________________________
|  Root 1                                                                  |
|   ________________________________    ________________________________   |
|  |  Child 1.1                     |  |  Child 1.2                     |  |
|  |   ___________    ___________   |  |   ___________    ___________   |  |
|  |  |  C 1.1.1  |  |  C 1.1.2  |  |  |  |  C 1.2.1  |  |  C 1.2.2  |  |  |
1  2  3___________4  5___________6  7  8  9___________10 11__________12 13 14
|  |________________________________|  |________________________________|  |
|__________________________________________________________________________|

As you can see, to get the entire subtree for a given node, in tree order, you simply have to select all rows which have lft and rght values between its lft and rght values. It's also simple to retrieve the tree of ancestors for a given node.

The level column is a bit of denormalisation for convenience more than anything and the tree_id column allows you to restart the lft and rght numbering for each top-level node, which reduces the number of columns affected by inserts, moves and deletions, as the lft and rght columns have to be adjusted accordingly when these operations take place in order to create or close gaps. I made some development notes at the time when I was trying to wrap my head around the queries required for each operation.

In terms of actually working with this data to display a tree, I created a tree_item_iterator utility function which, for each node, should give you sufficient information to generate whatever kind of display you want.

More info about MPTT:

• Trees in SQL
• Storing Hierarchical Data in a Database
• Managing Hierarchical Data in MySQL

Adding to what @KyleMit said, consider using:

• col-md-* classes for the larger outer columns
• col-xs-* classes for the smaller inner columns

This will be useful when you view the page on different screen sizes.

On a small screen, the wrapping of larger outer columns will then happen while maintaining the smaller inner columns, if possible

2018 Update - Please don't use this info !

I'm leaving the below post for reference purposes.

Please read Apple's documentation Human Interface Guidelines - Launch Screens for details on launch screens and recommendations.

Thanks
Drekka

July 2012 - As this reply is rather old, but stills seems popular. I've written a blog post based on Apple's doco and placed it on my blog. I hope you guys find it useful.

Yes. In iPhone/iPad development the Default.png file is displayed by the device automatically so you don't have to program it which is really useful. I don't have it with me, but you need different PNGs for the iPad with specific names. I googled iPad default png and got this info from the phunkwerks site:

iPad Launch Image Orientations

To deal with various orientation options, a new naming convention has been created for iPad launch images. The screen size of the iPad is 768×1024, notice in the dimensions that follow the height takes into account a 20 pixel status bar.

Filename Dimensions

• Default-Portrait.png * — 768w x 1024h
• Default-PortraitUpsideDown.png — 768w x 1024h
• Default-Landscape.png ** — 1024w x 748h
• Default-LandscapeLeft.png — 1024w x 748h
• Default-LandscapeRight.png — 1024w x 748h
• iPad-Retina–Portrait.png — 1536w x 2048h
• iPad-Retina–Landscape.png — 2048w x 1496h
• Default.png — Not recommended

*—If you have not specified a Default-PortraitUpsideDown.png file, this file will take precedence.

**—If you have not specified a Default-LandscapeLeft.png or Default-LandscapeRight.png image file, this file will take precedence.

This link to "Apple's Developer Library" is useful, too.

Set the items into display: inline and use :after:

.text span { display: inline }
.break-after:after { content: '\A'; white-space:pre; }

and add the class into your html spans:

<span class="medium break-after">We</span>

Just a note:

You are facing the problem of your non-latin characters is showing as ????????? , you asked a question, and it got closed with a reference to this canonical question, you tried everything and no matter what you do you still get ?????????? from MySQL.

That is mostly because you are testing on your old data which has been inserted to the database using the wrong charset and got converted and stored to actually the question mark characters ?. Which means you lost your original text forever and no matter what you try you will get ???????.

re applying what you have learned from the answers of this question on a fresh data could solve your problem.

This is how i solved mine. I just specified the background color and text color in styles. ie res > values > styles.xml file.

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="android:itemBackground">#ffffff</item>
    <item name="android:textColor">#000000</item>
</style>

The original order is in fact backwards. Certs should be followed by the issuing cert until the last cert is issued by a known root per IETF's RFC 5246 Section 7.4.2

This is a sequence (chain) of certificates. The sender's certificate MUST come first in the list. Each following certificate MUST directly certify the one preceding it.

See also SSL: error:0B080074:x509 certificate routines:X509_check_private_key:key values mismatch for troubleshooting techniques.

But I still don't know why they wrote the spec so that the order matters.

SWIFT 3 Example

override func viewDidLoad() {

    self.backgroundImageView.addGestureRecognizer(
        UITapGestureRecognizer.init(target: self, action:#selector(didTapImageview(_:)))
    )

    self.backgroundImageView.isUserInteractionEnabled = true
}

func didTapImageview(_ sender: Any) {
    // do something
}

No gesture recongnizer delegates or other implementations where necessary.

You need

.abc,.ab {
    display: none;
}

#f:hover ~ .ab {
    display: block;
}

#s:hover ~ .abc {
    display: block;
}

#s:hover ~ .a,
#f:hover ~ .a{
    display: none;
}

Updated demo at http://jsfiddle.net/gaby/n5fzB/2/

The problem in your original CSS was that the , in css selectors starts a completely new selector. it is not combined.. so #f:hover ~ .abc,.a means #f:hover ~ .abc and .a. You set that to display:none so it was always set to be hidden for all .a elements.

It enables you to use any middleware (read more) like body_parser,CORS etc. Middleware can make changes to request and response objects. It can also execute a piece of code.

Using a set to store the word list because looking them up will be faster:

with open("english_words.txt") as word_file:
    english_words = set(word.strip().lower() for word in word_file)

def is_english_word(word):
    return word.lower() in english_words

print is_english_word("ham")  # should be true if you have a good english_words.txt

To answer the second part of the question, the plurals would already be in a good word list, but if you wanted to specifically exclude those from the list for some reason, you could indeed write a function to handle it. But English pluralization rules are tricky enough that I'd just include the plurals in the word list to begin with.

As to where to find English word lists, I found several just by Googling "English word list". Here is one: http://www.sil.org/linguistics/wordlists/english/wordlist/wordsEn.txt You could Google for British or American English if you want specifically one of those dialects.

Just use the method .decode('base64') and go to be happy.

You need, too, to detect the mimetype/extension of the image, as you can save it correctly, in a brief example, you can use the code below for a django view:

def receive_image(req):
    image_filename = req.REQUEST["image_filename"] # A field from the Android device
    image_data = req.REQUEST["image_data"].decode("base64") # The data image
    handler = open(image_filename, "wb+")
    handler.write(image_data)
    handler.close()

And, after this, use the file saved as you want.

Simple. Very simple. ;)

The alert() wants to display a string, so it will interpret "2">"10" as a string.

Use the following:

var greater = parseInt("2") > parseInt("10");
alert("Is greater than? " + greater);

var less = parseInt("2") < parseInt("10");
alert("Is less than? " + less);

Actually, you can achieve this pretty easy. Simply specify the line height as a number:

<p style="line-height:1.5">
    <span style="font-size:12pt">The quick brown fox jumps over the lazy dog.</span><br />
    <span style="font-size:24pt">The quick brown fox jumps over the lazy dog.</span>
</p>

The difference between number and percentage in the context of the line-height CSS property is that the number value is inherited by the descendant elements, but the percentage value is first computed for the current element using its font size and then this computed value is inherited by the descendant elements.

For more information about the line-height property, which indeed is far more complex than it looks like at first glance, I recommend you take a look at this online presentation.

$ su - postgres
$ psql
$ \du; for see the user on db
select the user that do you want be superuser and:
$ ALTER USER "user" with superuser;

Because that gtab82 table isn't in your FROM or JOIN clause. You refer gtab82 table in these cases: gtab82.memno and gtab82.memacid

word-wrap: break-word;

worked for me.

Heap allocations are possible for static variables if you use the lazy_static macro as seen in the docs

Using this macro, it is possible to have statics that require code to be executed at runtime in order to be initialized. This includes anything requiring heap allocations, like vectors or hash maps, as well as anything that requires function calls to be computed.

// Declares a lazily evaluated constant HashMap. The HashMap will be evaluated once and
// stored behind a global static reference.

use lazy_static::lazy_static;
use std::collections::HashMap;

lazy_static! {
    static ref PRIVILEGES: HashMap<&'static str, Vec<&'static str>> = {
        let mut map = HashMap::new();
        map.insert("James", vec!["user", "admin"]);
        map.insert("Jim", vec!["user"]);
        map
    };
}

fn show_access(name: &str) {
    let access = PRIVILEGES.get(name);
    println!("{}: {:?}", name, access);
}

fn main() {
    let access = PRIVILEGES.get("James");
    println!("James: {:?}", access);

    show_access("Jim");
}

i assume you are working with nullable datatypes, you can do something like this:

var t = things.Where(x => x!=null && x.Value.ID == long.Parse(options.ID)).FirstOrDefault();
var res = t == null ? "" : t.Value;

+----------------------------------------------------------+
¦ command ¦ object does not exist ¦ object already exists  ¦
+---------+-----------------------+------------------------¦
¦ create  ¦ create new object     ¦          ERROR         ¦ 
¦         ¦                       ¦                        ¦
¦ apply   ¦ create new object     ¦ configure object       ¦
¦         ¦ (needs complete spec) ¦ (accepts partial spec) ¦
¦         ¦                       ¦                        ¦
¦ replace ¦         ERROR         ¦ delete object          ¦
¦         ¦                       ¦ create new object      ¦
+----------------------------------------------------------+

You can try Java Webcam SDK library also. SDK demo applet is available at link.

There's tonnes of them on regexlib

You can achieve this like following :

map<string, int>::iterator it;

for (it = symbolTable.begin(); it != symbolTable.end(); it++)
{
    std::cout << it->first    // string (key)
              << ':'
              << it->second   // string's value 
              << std::endl;
}

With C++11 _{( and onwards )},

for (auto const& x : symbolTable)
{
    std::cout << x.first  // string (key)
              << ':' 
              << x.second // string's value 
              << std::endl;
}

With C++17 _{( and onwards )},

for (auto const& [key, val] : symbolTable)
{
    std::cout << key        // string (key)
              << ':'  
              << val        // string's value
              << std::endl;
}

Discovery is far easier in REST. We have WADL documents (similar to WSDL in traditional webservices) that will help you to advertise your service to the world. You can use UDDI discoveries as well. With traditional HTTP POST and GET people may not know your message request and response schemas to call you.

Assertions (by way of the assert keyword) were added in Java 1.4. They are used to verify the correctness of an invariant in the code. They should never be triggered in production code, and are indicative of a bug or misuse of a code path. They can be activated at run-time by way of the -ea option on the java command, but are not turned on by default.

An example:

public Foo acquireFoo(int id) {
  Foo result = null;
  if (id > 50) {
    result = fooService.read(id);
  } else {
    result = new Foo(id);
  }
  assert result != null;

  return result;
}

Type switches can also be used with reflection stuff:

var str = "hello!"
var obj = reflect.ValueOf(&str)

switch obj.Elem().Interface().(type) {
case string:
    log.Println("obj contains a pointer to a string")
default:
    log.Println("obj contains something else")
}

I think what you are looking for is the 'not' operator?

if not var

Reference page: http://www.tutorialspoint.com/python/logical_operators_example.htm

I encountered similar behavior after upgrading to npm 6.1.0. It seemed to work once, but then I got into a state with this error while trying to install a package that was specified by path on the filesystem:

npm ERR! code ENOENT
npm ERR! errno -2
npm ERR! syscall rename

The following things did not fix the problem:

• rm -rf node_modules
• npm cache clean (gave npm ERR! As of npm@5, the npm cache self-heals....use 'npm cache verify' instead.)
• npm cache verify
• rm -rf ~/.npm

How I fixed the problem:

• rm package-lock.json

There are a lot of answers here. And it's old, but this is for anyone coming here via google. In jQuery each function

return false; is like break.

just

return; is like continue

These will emulate the behavior of break and continue.

Swift 3.0

Through a small abstraction https://github.com/daltoniam/swiftHTTP

Example

    do {
        let opt = try HTTP.GET("https://google.com")
        opt.start { response in
            if let err = response.error {
                print("error: \(err.localizedDescription)")
                return //also notify app of failure as needed
            }
            print("opt finished: \(response.description)")
            //print("data is: \(response.data)") access the response of the data with response.data
        }
    } catch let error {
        print("got an error creating the request: \(error)")
    }

I'm using this method

public Document parseXmlFromString(String xmlString){
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = factory.newDocumentBuilder();
    InputStream inputStream = new    ByteArrayInputStream(xmlString.getBytes());
    org.w3c.dom.Document document = builder.parse(inputStream);
    return document;
}

There is one rule that is set by font-awesome.css, which you need to override.

You should set overrides in your CSS files rather than inline, but essentially, the icon-ok class is being set to vertical-align: baseline; by default and which I've corrected here:

<button id="whatever" class="btn btn-large btn-primary" name="Continue" type="submit">
    <span>Continue</span>
    <i class="icon-ok" style="font-size:30px; vertical-align: middle;"></i>
</button>

Example here: http://jsfiddle.net/fPXFY/4/ and the output of which is:

I've downsized the font-size of the icon above in this instance to 30px, as it feels too big at 40px for the size of the button, but this is purely a personal viewpoint. You could increase the padding on the button to compensate if required:

<button id="whaever" class="btn btn-large btn-primary" style="padding: 20px;" name="Continue" type="submit">
    <span>Continue</span>
    <i class="icon-ok" style="font-size:30px; vertical-align: middle;"></i>
</button>

Producing: http://jsfiddle.net/fPXFY/5/ the output of which is:

Try this:

lst = []
##use append to add items to the list.

lst.append({'A':0,'C':0,'G':0,'T':0})
lst.append({'A':1,'C':1,'G':1,'T':1})

##if u need to add n no of items to the list, use range with append:
for i in range(n):
    lst.append({'A':0,'C':0,'G':0,'T':0})

print lst

The script I use is quite similar; I post it here as an example of how to use the email.* modules to generate MIME messages; so this script can be easily modified to attach pictures, etc.

I rely on my ISP to add the date time header.

My ISP requires me to use a secure smtp connection to send mail, I rely on the smtplib module (downloadable at http://www1.cs.columbia.edu/~db2501/ssmtplib.py)

As in your script, the username and password, (given dummy values below), used to authenticate on the SMTP server, are in plain text in the source. This is a security weakness; but the best alternative depends on how careful you need (want?) to be about protecting these.

=======================================

#! /usr/local/bin/python


SMTPserver = 'smtp.att.yahoo.com'
sender =     'me@my_email_domain.net'
destination = ['recipient@her_email_domain.com']

USERNAME = "USER_NAME_FOR_INTERNET_SERVICE_PROVIDER"
PASSWORD = "PASSWORD_INTERNET_SERVICE_PROVIDER"

# typical values for text_subtype are plain, html, xml
text_subtype = 'plain'


content="""\
Test message
"""

subject="Sent from Python"

import sys
import os
import re

from smtplib import SMTP_SSL as SMTP       # this invokes the secure SMTP protocol (port 465, uses SSL)
# from smtplib import SMTP                  # use this for standard SMTP protocol   (port 25, no encryption)

# old version
# from email.MIMEText import MIMEText
from email.mime.text import MIMEText

try:
    msg = MIMEText(content, text_subtype)
    msg['Subject']=       subject
    msg['From']   = sender # some SMTP servers will do this automatically, not all

    conn = SMTP(SMTPserver)
    conn.set_debuglevel(False)
    conn.login(USERNAME, PASSWORD)
    try:
        conn.sendmail(sender, destination, msg.as_string())
    finally:
        conn.quit()

except:
    sys.exit( "mail failed; %s" % "CUSTOM_ERROR" ) # give an error message

All of these answers helped me construct the following script which will automatically convert XLS* files to CSV and vice versa, by dropping one or more files on the script (or via command line). Apologies for the janky formatting.

' https://stackoverflow.com/questions/1858195/convert-xls-to-csv-on-command-line
' https://gist.github.com/tonyerskine/77250575b166bec997f33a679a0dfbe4

' https://stackoverflow.com/a/36804963/1037948
'* Global Settings and Variables
Set args = Wscript.Arguments

For Each sFilename In args
    iErr = ConvertExcelFormat(sFilename)
    ' 0 for normal success
    ' 404 for file not found
    ' 10 for file skipped (or user abort if script returns 10)
Next

WScript.Quit(0)

Function ConvertExcelFormat(srcFile)

    if IsEmpty(srcFile) OR srcFile = "" Then
        WScript.Echo "Error! Please specify at least one source path. Usage: " & WScript.ScriptName & " SourcePath.xls*|csv"
        ConvertExcelFormat = -1
        Exit Function
        'Wscript.Quit
    End If

    Set objFSO = CreateObject("Scripting.FileSystemObject")

    srcExt = objFSO.GetExtensionName(srcFile)

    ' the 6 is the constant for 'CSV' format, 51 is for 'xlsx'
    ' https://msdn.microsoft.com/en-us/vba/excel-vba/articles/xlfileformat-enumeration-excel
    ' https://www.rondebruin.nl/mac/mac020.htm
    Dim outputFormat, srcDest

    If LCase(Mid(srcExt, 1, 2)) = "xl" Then
        outputFormat = 6
        srcDest = "csv"
    Else
        outputFormat = 51
        srcDest = "xlsx"
    End If

    'srcFile = objFSO.GetAbsolutePathName(Wscript.Arguments.Item(0))
    srcFile = objFSO.GetAbsolutePathName(srcFile)
    destFile = Replace(srcFile, srcExt, srcDest)

    Dim oExcel
    Set oExcel = CreateObject("Excel.Application")
    Dim oBook
    Set oBook = oExcel.Workbooks.Open(srcFile)
    ' preserve formatting? https://stackoverflow.com/a/8658845/1037948
    'oBook.Application.Columns("A:J").NumberFormat = "@"
    oBook.SaveAs destFile, outputFormat
    oBook.Close False
    oExcel.Quit
    WScript.Echo "Conversion complete of '" & srcFile & "' to '" & objFSO.GetFileName(destFile) & "'"

End Function

The function I use currently:

/**
 * Serializes form or any other element with jQuery.serialize
 * @param el
 */
serialize: function(el) {
    var serialized = $(el).serialize();
    if (!serialized) // not a form
        serialized = $(el).
          find('input[name],select[name],textarea[name]').serialize();
    return serialized;
}

I'm guessing that your class is in a different namespace. The canonical way to solve this would be to use the resources class and a strongly typed resource:

ProjectNamespace.Properties.Resources.file

Use the IDE's resource manager to add resources.

Simple way founded here with pydotplus (graphviz must be installed):

from IPython.display import Image  
from sklearn import tree
import pydotplus # installing pyparsing maybe needed

...

dot_data = tree.export_graphviz(best_model, out_file=None, feature_names = X.columns)
graph = pydotplus.graph_from_dot_data(dot_data)
Image(graph.create_png())

Use @IBDesignable and @IBInspectable to do the same.

They are re-useable, easily modifiable from the Interface Builder and the changes are reflected immediately in the Storyboard

Conform the objects in the storyboard to the particular class

Code Snippet:

@IBDesignable
class CustomView: UIView{

@IBInspectable var borderWidth: CGFloat = 0.0{

    didSet{

        self.layer.borderWidth = borderWidth
    }
}


@IBInspectable var borderColor: UIColor = UIColor.clear {

    didSet {

        self.layer.borderColor = borderColor.cgColor
    }
}

override func prepareForInterfaceBuilder() {

    super.prepareForInterfaceBuilder()
}

}

Allows easy modification from Interface Builder:

git checkout checksum  # You could use this to peek previous checkpoints
git status # You will see HEAD detached at checksum
git checkout master # This moves HEAD to master branch

Here is a query, you can run it in SQL Developer (or SQL*Plus):

SELECT DS.TABLESPACE_NAME, SEGMENT_NAME, ROUND(SUM(DS.BYTES) / (1024 * 1024)) AS MB
  FROM DBA_SEGMENTS DS
  WHERE SEGMENT_NAME IN (SELECT TABLE_NAME FROM DBA_TABLES)
 GROUP BY DS.TABLESPACE_NAME,
       SEGMENT_NAME;

You can redirect anything or more URL via javascript, Just simple window.location.href with if else

Use this code,

<script>
if(window.location.href == 'old_url')
{
    window.location.href="new_url";
}


//Another url redirect
if(window.location.href == 'old_url2')
{
    window.location.href="new_url2";
}
</script>

You can redirect many URL's by this procedure. Thanks.

Yet another advantage of .format (which I don't see in the answers): it can take object properties.

In [12]: class A(object):
   ....:     def __init__(self, x, y):
   ....:         self.x = x
   ....:         self.y = y
   ....:         

In [13]: a = A(2,3)

In [14]: 'x is {0.x}, y is {0.y}'.format(a)
Out[14]: 'x is 2, y is 3'

Or, as a keyword argument:

In [15]: 'x is {a.x}, y is {a.y}'.format(a=a)
Out[15]: 'x is 2, y is 3'

This is not possible with % as far as I can tell.

use .filter(':has(:checkbox:checked)' ie:

$('#mytable tr').filter(':has(:checkbox:checked)').each(function() {
 $('#out').append(this.id);
});

Put in other words, this error is telling you that SQL Server does not know which B to select from the group.

Either you want to select one specific value (e.g. the MIN, SUM, or AVG) in which case you would use the appropriate aggregate function, or you want to select every value as a new row (i.e. including B in the GROUP BY field list).

Consider the following data:

ID  A   B
1   1  13
1   1  79
1   2  13
1   2  13
1   2  42

The query

SELECT A, COUNT(B) AS T1 
FROM T2 
GROUP BY A

would return:

A  T1
1  2
2  3

which is all well and good.

However consider the following (illegal) query, which would produce this error:

SELECT A, COUNT(B) AS T1, B 
FROM T2 
GROUP BY A

And its returned data set illustrating the problem:

A  T1  B
1  2   13? 79? Both 13 and 79 as separate rows? (13+79=92)? ...?
2  3   13? 42? ...?

However, the following two queries make this clear, and will not cause the error:

1. Using an aggregate

   SELECT A, COUNT(B) AS T1, SUM(B) AS B
   FROM T2
   GROUP BY A
   

   would return:

   A  T1  B
   1  2   92
   2  3   68
   

2. Adding the column to the GROUP BY list

   SELECT A, COUNT(B) AS T1, B
   FROM T2
   GROUP BY A, B
   

   would return:

   A  T1  B
   1  1   13
   1  1   79
   2  2   13
   2  1   42
   

I have both 32 and 64 bit python and ipython using WinPython, I wanted both 32 and 64 bit versions to point to the same working directory for ipython notebook.

I followed the above suggestions here I was still unable to get my setup working.

Here's what I did - in case anyone needs it:

It looks like Ipython notebook was using the configuration from C:\pythonPath\winpythonPath\settings\.ipython\profile_default

Even though ipython locate returns C:\users\Username\.ipython

As a result, modifying the ipython_notebook_config.py file did nothing to change my working directory.

Additionally ipython profile_create was not creating the needed python files in C:\pythonPath\winpythonPath\settings\.ipython\profile_default

I'm sure there's a better way, but to resolve this quickly, I copied the edited python files from C:\users\Username\.ipython\profile_default to C:\pythonPath\winpythonPath\settings\.ipython\profile_default

Now (finally) ipython notebook 64 bit runs and provides me the correct working directory

Note on Windows I'm having no issue with the following syntax:

c.NotebookApp.notebook_dir = u'C:/Users/Path_to_working_directory'

Swift 5

  @IBAction func buttonPressed(_ sender: Any) {
    let videoURL = course.introductionVideoURL
    let player = AVPlayer(url: videoURL)
    let playerViewController = AVPlayerViewController()
    playerViewController.player = player

    present(playerViewController, animated: true, completion: {

        playerViewController.player!.play()
    })

// here the course includes a model file, inside it I have given the url, so I am calling the function from model using course function.

// also introductionVideoUrl is a URL which I declared inside model .

 var introductionVideoURL: URL

Also alternatively you can use the below code instead of calling the function from model

Replace this code

  let videoURL = course.introductionVideoURL

with

  guard let videoURL = URL(string: "https://something.mp4) else {
        return

Last column in your input file must have some data in it (be it space or char, but not null). I guess, 1st record contains null after last ',' which sqlldr won't recognize unless specifically asked to recognize nulls using TRAILING NULLCOLS option. Alternatively, if you don't want to use TRAILING NULLCOLS, you will have to take care of those NULLs before you pass the file to sqlldr. Hope this helps

1.Run Spring Boot app with java -jar command

To run your Spring Boot app from a command line in a Terminal window you can use java -jar command. This is provided your Spring Boot app was packaged as an executable jar file.

java -jar target/app-0.0.1-SNAPSHOT.jar

2.Run Spring Boot app using Maven

You can also use Maven plugin to run your Spring Boot app. Use the below command to run your Spring Boot app with Maven plugin:

mvn spring-boot:run

3.Run Spring Boot App with Gradle

And if you use Gradle you can run the Spring Boot app with the following command:

gradle bootRun

Are you asking about this?

  public class VariantDate {
    public int day;
    public int month;
    public int year;

    public VariantDate(int day) : this(day, 1) {}

    public VariantDate(int day, int month) : this(day, month,1900){}

    public VariantDate(int day, int month, int year){
    this.day=day;
    this.month=month;
    this.year=year;
    }

}

it seems there is a problem in migration process, run add-migration command in "Package Manager Console":

Add-Migration Initial -IgnoreChanges

do some changes, and then update database from "Initial" file:

Update-Database -verbose

Edit: -IgnoreChanges is in EF6 but not in EF Core, here's a workaround: https://stackoverflow.com/a/43687656/495455

I figured out my own variation of this problem.

The issue was not changing the protocol from https to ssl, but instead, setting the Github global username and email! (I was trying to push to a private repository.

git config --global user.email "[email protected]"

git config --global user.name "Your full name"

Lexeme is basically the unit of a token and it is basically sequence of characters that matches the token and helps to break the source code into tokens.

For example: If the source is x=b, then the lexemes would be x, =, b and the tokens would be <id, 0>, <=>, <id, 1>.

I use this code

                string PZipPath = @"C:\Program Files\7-Zip\7z.exe";
                string sourceCompressDir = @"C:\Test";
                string targetCompressName = @"C:\Test\abc.zip";
                string CompressName = targetCompressName.Split('\\').Last();
                string[] fileCompressList = Directory.GetFiles(sourceCompressDir, "*.*");

                    if (fileCompressList.Length == 0)
                    {
                        MessageBox.Show("No file in directory", "Important Message");
                        return;
                    }
                    string filetozip = null;
                    foreach (string filename in fileCompressList)
                    {
                        filetozip = filetozip + "\"" + filename + " ";
                    }

                    ProcessStartInfo pCompress = new ProcessStartInfo();
                    pCompress.FileName = PZipPath;
                    if (chkRequestPWD.Checked == true)
                    {
                        pCompress.Arguments = "a -tzip \"" + targetCompressName + "\" " + filetozip + " -mx=9" + " -p" + tbPassword.Text;
                    }
                    else
                    {
                        pCompress.Arguments = "a -tzip \"" + targetCompressName + "\" \"" + filetozip + "\" -mx=9";
                    }
                    pCompress.WindowStyle = ProcessWindowStyle.Hidden;
                    Process x = Process.Start(pCompress);
                    x.WaitForExit();

Use overrideLibrary when the minSdk is declared in build.gradle instead of in AndroidManifest.xml

If you are using Android Studio:

add <uses-sdk tools:overrideLibrary="android.support.v17.leanback"/> to your manifest, don't forget to include xmlns:tools="http://schemas.android.com/tools" too.

Here's a grid of card UI elements with spacing completed using flexible box:

I was frustrated with manually spacing the cards by manipulating padding and margins with iffy results. So here's the combinations of CSS attributes I've found very effective:

.card-container {_x000D_
  width: 100%;_x000D_
  height: 900px;_x000D_
  overflow-y: scroll;_x000D_
  max-width: inherit;_x000D_
  background-color: #ffffff;_x000D_
  _x000D_
  /*Here's the relevant flexbox stuff*/_x000D_
  display: flex;_x000D_
  flex-direction: row;_x000D_
  justify-content: center;_x000D_
  align-items: flex-start;_x000D_
  flex-wrap: wrap; _x000D_
}_x000D_
_x000D_
/*Supplementary styles for .card element*/_x000D_
.card {_x000D_
  width: 120px;_x000D_
  height: 120px;_x000D_
  background-color: #ffeb3b;_x000D_
  border-radius: 3px;_x000D_
  margin: 20px 10px 20px 10px;_x000D_
}

<section class="card-container">_x000D_
        <div class="card">_x000D_
_x000D_
        </div>_x000D_
        <div class="card">_x000D_
_x000D_
        </div>_x000D_
        <div class="card">_x000D_
_x000D_
        </div>_x000D_
        <div class="card">_x000D_
_x000D_
        </div>_x000D_
      </section>

Hope this helps folks, present and future.

For AngularJS users:

$window.grecaptcha.reset();

Instead of nohup, you should use screen. It achieves the same result - your commands are running "detached". However, you can resume screen sessions and get back into their "hidden" terminal and see recent progress inside that terminal.

screen has a lot of options. Most often I use these:

To start first screen session or to take over of most recent detached one:

screen -Rd 

To detach from current session: Ctrl+ACtrl+D

You can also start multiple screens - read the docs.

As the documentation says, this method call returns "a pseudorandom, uniformly distributed int value between 0 (inclusive) and the specified value (exclusive)". This means that you will get numbers from 0 to 9 in your case. So you've done everything correctly by adding one to that number.

Generally speaking, if you need to generate numbers from min to max (including both), you write

random.nextInt(max - min + 1) + min

1. In httpd.conf on /Applications/MAMP/conf/apache, find:

   <Directory />
       Options Indexes FollowSymLinks
       AllowOverride None
   </Directory>
   

2. Replace None with All.

3. Restart MAMP servers.

I used Keystore Explorer

1. Open JKS with a private key
2. Examine signed PEM from CA
3. Import key
4. Save JKS

There are two obvious points, as well as the points in the other answer:

• They are exactly equivalent when using sub queries:

  SELECT * FROM table
  WHERE column IN(subquery);
  
  SELECT * FROM table
  WHERE column = ANY(subquery);
  

On the other hand:

• Only the IN operator allows a simple list:

  SELECT * FROM table
  WHERE column IN(… , … , …);
  

Presuming they are exactly the same has caught me out several times when forgetting that ANY doesn’t work with lists.

You have a couple of options.

import pandas as pd
import numpy as np

df = pd.DataFrame(np.random.randn(10,6))
# Make a few areas have NaN values
df.iloc[1:3,1] = np.nan
df.iloc[5,3] = np.nan
df.iloc[7:9,5] = np.nan

Now the data frame looks something like this:

          0         1         2         3         4         5
0  0.520113  0.884000  1.260966 -0.236597  0.312972 -0.196281
1 -0.837552       NaN  0.143017  0.862355  0.346550  0.842952
2 -0.452595       NaN -0.420790  0.456215  1.203459  0.527425
3  0.317503 -0.917042  1.780938 -1.584102  0.432745  0.389797
4 -0.722852  1.704820 -0.113821 -1.466458  0.083002  0.011722
5 -0.622851 -0.251935 -1.498837       NaN  1.098323  0.273814
6  0.329585  0.075312 -0.690209 -3.807924  0.489317 -0.841368
7 -1.123433 -1.187496  1.868894 -2.046456 -0.949718       NaN
8  1.133880 -0.110447  0.050385 -1.158387  0.188222       NaN
9 -0.513741  1.196259  0.704537  0.982395 -0.585040 -1.693810

• Option 1: df.isnull().any().any() - This returns a boolean value

You know of the isnull() which would return a dataframe like this:

       0      1      2      3      4      5
0  False  False  False  False  False  False
1  False   True  False  False  False  False
2  False   True  False  False  False  False
3  False  False  False  False  False  False
4  False  False  False  False  False  False
5  False  False  False   True  False  False
6  False  False  False  False  False  False
7  False  False  False  False  False   True
8  False  False  False  False  False   True
9  False  False  False  False  False  False

If you make it df.isnull().any(), you can find just the columns that have NaN values:

0    False
1     True
2    False
3     True
4    False
5     True
dtype: bool

One more .any() will tell you if any of the above are True

> df.isnull().any().any()
True

• Option 2: df.isnull().sum().sum() - This returns an integer of the total number of NaN values:

This operates the same way as the .any().any() does, by first giving a summation of the number of NaN values in a column, then the summation of those values:

df.isnull().sum()
0    0
1    2
2    0
3    1
4    0
5    2
dtype: int64

Finally, to get the total number of NaN values in the DataFrame:

df.isnull().sum().sum()
5

Use jquery.inputmask 3.x. See demos here

Include files:

<script src="/assets/jquery.inputmask.js" type="text/javascript"></script>
<script src="/assets/jquery.inputmask.extensions.js" type="text/javascript"></script>
<script src="/assets/jquery.inputmask.numeric.extensions.js" type="text/javascript"></script>

And code as

$(selector).inputmask('decimal',
  { 'alias': 'numeric',
    'groupSeparator': '.',
    'autoGroup': true,
    'digits': 2,
    'radixPoint': ",",
    'digitsOptional': false,
    'allowMinus': false,
    'prefix': '$ ',
    'placeholder': '0'
  }
);

Highlights:

• easy to use
• optional parts anywere in the mask
• possibility to define aliases which hide complexity
• date / datetime masks
• numeric masks
• lots of callbacks
• non-greedy masks
• many features can be enabled/disabled/configured by options
• supports readonly/disabled/dir="rtl" attributes
• support data-inputmask attribute(s)
• multi-mask support
• regex-mask support
• dynamic-mask support
• preprocessing-mask support
• value formatting / validating without input element