You're missing service name:

 SQL> connect username/password@hostname:port/SERVICENAME

EDIT

If you can connect to the database from other computer try running there:

select sys_context('USERENV','SERVICE_NAME') from dual

and

select sys_context('USERENV','SID') from dual

In Windows 8 PC with Laragon 3.4.0 180809, I faced the same issue. It happened in my case because I updated Laragon and it added a new version of PHP. So in laragon/bin/php/ I actually had two directories:

• php-7.1.20-Win32-VC14-x64
• php-7.1.7-Win32-VC14-x64

I added 7.1.20 into my PATH variable. But in my Command Console, running php --ini was showing that the path actually was fetching from the older one: php-7.1.7-Win32-VC14-x64. So I deleted the old one (for safety, I put it in Recycle Bin). But Laragon failed to start after that.

So, in laragaon/etc/apache2/mod_php.conf, I changed the path to the latest PHP version. Then restarted Laragon and the issue is resolved.

Reference: How to add another PHP version - Laragon Forum

It looks like a 32/64 bit mismatch. The ldd output shows that mainly libraries from /lib64 are chosen. That would indicate that you have installed a 64 bit version of the Oracle client and have created a 64 bit executable. But libaio.so is probably a 32 bit library and cannot be used for your application.

So you either need a 64 bit version of libaio or you create a 32 bit version of your application.

I have just tried to install that extension on my dev server.

First, make sure that the extension is correctly enabled. Your phpinfo() output doesn't seem complete.

If it is indeed installed properly, your phpinfo() should have a section that looks like this:

If you do not get that section in your phpinfo(). Make sure that you are using the right version. There are both non-thread-safe and thread-safe versions of the extension.

Finally, check your extension_dir setting. By default it's this: extension_dir = "ext", for most of the time it works fine, but if it doesn't try: extension_dir = "C:\PHP\ext".

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

EDIT given new info:

You are using the wrong function. mssql_connect() is part of the Mssql extension. You are using microsoft's extension, so use sqlsrv_connect(), for the API for the microsoft driver, look at SQLSRV_Help.chm which should be extracted to your ext directory when you extracted the extension.

The directions state:

1. Download the appropriate Instant Client packages for your platform. All installations REQUIRE the Basic package.
2. Unzip the packages into a single directory such as "instantclient".
3. Set the library loading path in your environment to the directory in Step 2 ("instantclient"). On many UNIX platforms, LD_LIBRARY_PATH is the appropriate environment variable. On Windows, PATH should be used.
4. Start your application and enjoy.

Suggest extracting/unzipping into a new directory. They've suggested instantclient, but you can name the directory anything you like. Name it C:\OracleInstantClient\ if you choose.

Then in Step 3, open a Windows Command Prompt. Type:

PATH C:\OracleInstantClient; %PATH%`

That's all there is to it!

Maybe you should better use a case for such lists:

case "$cms" in
  wordpress|meganto|typo3)
    do_your_else_case
    ;;
  *)
    do_your_then_case
    ;;
esac

I think for long such lists this is better readable.

If you still prefer the if you can do it with single brackets in two ways:

if [ "$cms" != wordpress -a "$cms" != meganto -a "$cms" != typo3 ]; then

or

if [ "$cms" != wordpress ] && [ "$cms" != meganto ] && [ "$cms" != typo3 ]; then

You can change the tool used by git mergetool by passing git mergetool -t=<tool> or --tool=<tool>. To change the default (from vimdiff) use git config merge.tool <tool>.

Just add -d32 to VM arguments in the "Edit launch configuration properties".

Like Eliran Malka asked, why do you need to check for IE 9?

Detecting browser make and version is generally a bad smell. This generally means that you there is a bigger problem with the code if you need JavaScript to detect specific versions of browser.

There are genuine cases where a feature won't work, like say WebSockets isn't supported in IE 8 or 9. This should be solved by checking for WebSocket support, and applying a polyfill if there is no native support.

This should be done with a library like Modernizr.

That being said, you can easily create service that would return the browser. There are valid cases where a feature exists in a browser but the implementation is outdated or broken. Modernizr is not appropriate for these cases.

app.service('browser', ['$window', function($window) {

     return function() {

         var userAgent = $window.navigator.userAgent;

        var browsers = {chrome: /chrome/i, safari: /safari/i, firefox: /firefox/i, ie: /internet explorer/i};

        for(var key in browsers) {
            if (browsers[key].test(userAgent)) {
                return key;
            }
       };

       return 'unknown';
    }

}]);

Fixed typo broswers

Note: This is just an example of how to create a service in angular that will sniff the userAgent string. This is just a code example that is not expected to work in production and report all browsers in all situations.

UPDATE

It is probably best to use a third party library like https://github.com/ded/bowser or https://github.com/darcyclarke/Detect.js. These libs place an object on the window named bowser or detect respectively.

You can then expose this to the Angular IoC Container like this:

angular.module('yourModule').value('bowser', bowser);

Or

detectFactory.$inject = ['$window'];
function detectFactory($window) {
    return detect.parse($window.navigator.userAgent);
} 
angular.module('yourModule').factory('detect', detectFactory);

You would then inject one of these the usual way, and use the API provided by the lib. If you choose to use another lib that instead uses a constructor method, you would create a factory that instantiates it:

function someLibFactory() {
    return new SomeLib();
}
angular.module('yourModule').factory('someLib', someLibFactory);

You would then inject this into your controllers and services the normal way.

If the library you are injecting does not exactly match your requirements, you may want to employ the Adapter Pattern where you create a class/constructor with the exact methods you need.

In this example we just need to test for IE 9, and we are going to use the bowser lib above.

BrowserAdapter.$inject = ['bowser']; // bring in lib
function BrowserAdapter(bowser) {
    this.bowser = bowser;
}

BrowserAdapter.prototype.isIe9 = function() {
    return this.bowser.msie && this.browser.version == 9;
}

angular.module('yourModule').service('browserAdapter', BrowserAdapter);

Now in a controller or service you can inject the browserAdapter and just do if (browserAdapter.isIe9) { // do something }

If later you wanted to use detect instead of bowser, the changes in your code would be isolated to the BrowserAdapter.

UPDATE

In reality these values never change. IF you load the page in IE 9 it will never become Chrome 44. So instead of registering the BrowserAdapter as a service, just put the result in a value or constant.

angular.module('app').value('isIe9', broswerAdapter.isIe9);

In your giant elif chain, you skipped 13. You might want to throw an error if you hit the end of the chain without returning anything, to catch numbers you missed and incorrect calls of the function:

...
elif x == 90:
    return 6
else:
    raise ValueError(x)

My SQL supports the function of a substring_Index where it will return the postion of a value in a string for the n occurance. A similar User defined function could be written to achieve this. Example in the link

Alternatively you could use charindex function call it x times to report the location of each _ given a starting postion +1 of the previously found instance. until a 0 is found

Edit: NM Charindex is the correct function

Surprised to see no one mentioned more capable, interactive and easier to use alternatives.

A) You can use plotly:

1. Just two lines and you get:

2. interactivity,

3. smooth scale,

4. colors based on whole dataframe instead of individual columns,

5. column names & row indices on axes,

6. zooming in,

7. panning,

8. built-in one-click ability to save it as a PNG format,

9. auto-scaling,

10. comparison on hovering,

11. bubbles showing values so heatmap still looks good and you can see values wherever you want:

import plotly.express as px
fig = px.imshow(df.corr())
fig.show()

B) You can also use Bokeh:

All the same functionality with a tad much hassle. But still worth it if you do not want to opt-in for plotly and still want all these things:

from bokeh.plotting import figure, show, output_notebook
from bokeh.models import ColumnDataSource, LinearColorMapper
from bokeh.transform import transform
output_notebook()
colors = ['#d7191c', '#fdae61', '#ffffbf', '#a6d96a', '#1a9641']
TOOLS = "hover,save,pan,box_zoom,reset,wheel_zoom"
data = df.corr().stack().rename("value").reset_index()
p = figure(x_range=list(df.columns), y_range=list(df.index), tools=TOOLS, toolbar_location='below',
           tooltips=[('Row, Column', '@level_0 x @level_1'), ('value', '@value')], height = 500, width = 500)

p.rect(x="level_1", y="level_0", width=1, height=1,
       source=data,
       fill_color={'field': 'value', 'transform': LinearColorMapper(palette=colors, low=data.value.min(), high=data.value.max())},
       line_color=None)
color_bar = ColorBar(color_mapper=LinearColorMapper(palette=colors, low=data.value.min(), high=data.value.max()), major_label_text_font_size="7px",
                     ticker=BasicTicker(desired_num_ticks=len(colors)),
                     formatter=PrintfTickFormatter(format="%f"),
                     label_standoff=6, border_line_color=None, location=(0, 0))
p.add_layout(color_bar, 'right')

show(p)

Take a peek at underscore.js which provides many linq like functions. In the example you give you would use the map function.

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

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

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

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

I'd rewrite this a bit, though:

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

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

here's a way using the SSSE3 instruction pshufb using its Intel intrinsic, assuming you have a multiple of 4 ints:

unsigned int *bswap(unsigned int *destination, unsigned int *source, int length) {
    int i;
    __m128i mask = _mm_set_epi8(12, 13, 14, 15, 8, 9, 10, 11, 4, 5, 6, 7, 0, 1, 2, 3);
    for (i = 0; i < length; i += 4) {
        _mm_storeu_si128((__m128i *)&destination[i],
        _mm_shuffle_epi8(_mm_loadu_si128((__m128i *)&source[i]), mask));
    }
    return destination;
}

In my case the following solved the problem:

1. Downloading the "32-bit Oracle Data Access Components (ODAC) with Oracle Developer Tools for Visual Studio" from http://www.oracle.com/technetwork/topics/dotnet/utilsoft-086879.html
2. Then adding reference oracle.dataaccess.dll to the bin file by browsing the file location or just from the refence list in .NET tab.

++i is a pre-increment; i++ is post-increment.
The downside of post-increment is that it generates an extra value; it returns a copy of the old value while modifying i. Thus, you should avoid it when possible.

If the resource is showing and is a view, you can also capture it. Like a screenshot:

View rootView = ((View) findViewById(R.id.yourView)).getRootView();
rootView.setDrawingCacheEnabled(true);
rootView.layout(0, 0, rootView.getWidth(), rootView.getHeight());
rootView.buildDrawingCache();

Bitmap bm = Bitmap.createBitmap(rootView.getDrawingCache());

rootView.setDrawingCacheEnabled(false);

This actually grabs the whole layout but you can alter as you wish.

The following steps are performed in the Git browser powered by Atlassian (Bitbucket server)

Making {current-branch} as master

1. Make a branch out of master and name it “master-duplicate”.
2. Make a branch out of {current-branch} and name it “{current-branch}-copy”.
3. In repository setting (Bitbucket) change “Default Branch” to point at “master-duplicate” (without this step, you will not be able to delete master - “In the Next step”).
4. Delete “master” branch - I did this step from source tree (you can do it from the CLI or Git browser)
5. Rename “{current-branch}” to “master” and push to repository (this will create a new “master” branch still “{current-branch}” will exist).
6. In repository settings, change “Default Branch” to point at “master”.

follow the below steps to solve this issue in pgadmin:

1. SET client_encoding = 'ISO_8859_5';

2. COPY tablename(column names) FROM 'D:/DB_BAK/csvfilename.csv' WITH DELIMITER ',' CSV ;

Alternatively you could also position the cursor onto the class name and press alt+enter (Show intention actions and quick fixes). It will suggest to Create Test.

At least works in IDEA version 12.

function myFunction(value1,value2,value3)
{         
     return {val2: value2, val3: value3};
}

Please look up the difference between & and && in Java (the same applies to | and ||).

& and | are just logical operators, while && and || are conditional logical operators, which in your example means that

if(bool1 && bool2 && bool3) {

will skip bool2 and bool3 if bool1 is false, and

if(bool1 & bool2 & bool3) {

will evaluate all conditions regardless of their values.

For example, given:

boolean foo() {
    System.out.println("foo");
    return true;
}

if(foo() | foo()) will print foo twice, and if(foo() || foo()) - just once.

This isn't a "slice", but it is a general solution that doesn't use explicit indexing, and works for the scenario where the sequence in question is anonymous (so you can create and "slice" on the same line, without creating twice and indexing twice): operator.itemgetter

import operator

# Done once and reused
first_and_last = operator.itemgetter(0, -1)

...

first, last = first_and_last(some_list)

You could just inline it as (after from operator import itemgetter for brevity at time of use):

first, last = itemgetter(0, -1)(some_list)

but if you'll be reusing the getter a lot, you can save the work of recreating it (and give it a useful, self-documenting name) by creating it once ahead of time.

Thus, for your specific use case, you can replace:

x, y = a.split("-")[0], a.split("-")[-1]

with:

x, y = itemgetter(0, -1)(a.split("-"))

and split only once without storing the complete list in a persistent name for len checking or double-indexing or the like.

Note that itemgetter for multiple items returns a tuple, not a list, so if you're not just unpacking it to specific names, and need a true list, you'd have to wrap the call in the list constructor.

If you either want the string or an empty string in case something is null, without anything can break:

using (var cmd = new OdbcCommand(cmdText, connection))
{
    var result = string.Empty;
    var scalar = cmd.ExecuteScalar();
    if (scalar != DBNull.Value) // Case where the DB value is null
    {
        result = Convert.ToString(scalar); // Case where the query doesn't return any rows. 
        // Note: Convert.ToString() returns an empty string if the object is null. 
        //       It doesn't break, like scalar.ToString() would have.
    }
    return result;
}

If you are using InnoDB or any row-level transactional RDBMS, then it is possible that any write transaction can cause a deadlock, even in perfectly normal situations. Larger tables, larger writes, and long transaction blocks will often increase the likelihood of deadlocks occurring. In your situation, it's probably a combination of these.

The only way to truly handle deadlocks is to write your code to expect them. This generally isn't very difficult if your database code is well written. Often you can just put a try/catch around the query execution logic and look for a deadlock when errors occur. If you catch one, the normal thing to do is just attempt to execute the failed query again.

I highly recommend you read this page in the MySQL manual. It has a list of things to do to help cope with deadlocks and reduce their frequency.

i had a similar problem where i was trying to focus on a txt area in an iframe loaded from another page. in most cases it work. There was an issue where it would fire in FF when the iFrame was loaded but before it was visible. so the focus never seemed to be set correctly.

i worked around this with a simular solution to cheeming's answer above

    var iframeID = document.getElementById("modalIFrame"); 
//focus the IFRAME element 
$(iframeID).focus(); 
//use JQuery to find the control in the IFRAME and set focus 
$(iframeID).contents().find("#emailTxt").focus(); 

from sklearn.model_selection import train_test_split
import numpy

with open("datafile.txt", "rb") as f:
   data = f.read().split('\n')
   data = numpy.array(data)  #convert array to numpy type array

   x_train ,x_test = train_test_split(data,test_size=0.5)       #test_size=0.5(whole_data)

we can control the scrolling speed by using the scrollamount attribute,

Example:

<marquee scrollamount="30">scrolling fast</marquee>
<marquee scrollamount="2">scrolling slow</marquee>

note:if you specify the minimum number, the scrolling speed will be reduce vice versa

When plotting a plot using matplotlib:

How to remove the box of the legend?

plt.legend(frameon=False)

How to change the color of the border of the legend box?

leg = plt.legend()
leg.get_frame().set_edgecolor('b')

How to remove only the border of the box of the legend?

leg = plt.legend()
leg.get_frame().set_linewidth(0.0)

Run these commands in the terminal:

sudo apt-get remove --purge mysql-server mysql-client mysql-common

sudo apt-get autoremove

sudo apt-get autoclean

Run these commands separately as each command requires confirmation & if run as a block, the command below the one currently running will cancel the confirmation (leading to the command not being run).

Please refer to How do I uninstall Mysql?

For Swift 3 and XCode 8, this worked. Follow below steps to achieve this:-

{
    let layout: UICollectionViewFlowLayout = UICollectionViewFlowLayout()
    let width = UIScreen.main.bounds.width
    layout.sectionInset = UIEdgeInsets(top: 0, left: 5, bottom: 0, right: 5)
    layout.itemSize = CGSize(width: width / 2, height: width / 2)
    layout.minimumInteritemSpacing = 0
    layout.minimumLineSpacing = 0
    collectionView!.collectionViewLayout = layout
}

Place this code into viewDidLoad() function.

I had the same problem on Windows Vista, I just added this code before cvQueryFrame:

cvSetCaptureProperty(capture, CV_CAP_PROP_FRAME_WIDTH, 720);
cvSetCaptureProperty(capture, CV_CAP_PROP_FRAME_HEIGHT, 480);

Use:

$('#example').dataTable({
    aLengthMenu: [
        [25, 50, 100, 200, -1],
        [25, 50, 100, 200, "All"]
    ],
    iDisplayLength: -1
});

Or if using 1.10+

$('#example').dataTable({
    paging: false
});

The option you should use is iDisplayLength:

$('#adminProducts').dataTable({
  'iDisplayLength': 100
});

$('#table').DataTable({
   "lengthMenu": [ [5, 10, 25, 50, -1], [5, 10, 25, 50, "All"] ]
});

It will Load by default all entries.

$('#example').dataTable({
    aLengthMenu: [
        [25, 50, 100, 200, -1],
        [25, 50, 100, 200, "All"]
    ],
    iDisplayLength: -1
});

Or if using 1.10+

$('#example').dataTable({
    paging: false
});

If you want to load by default 25 not all do this.

$('#example').dataTable({
    aLengthMenu: [
        [25, 50, 100, 200, -1],
        [25, 50, 100, 200, "All"]
    ],
});

NULL safe drop in replacement approximations for SQL Server 2012 CONCAT function

SQL Server 2012:

SELECT CONCAT(data1, data2)

PRE SQL 2012 (Two Solutions):

SELECT {fn CONCAT(ISNULL(data1, ''), ISNULL(data2, ''))}

SELECT ISNULL(CAST(data1 AS varchar(MAX)), '') + ISNULL(CAST(data2 AS varchar(MAX)), '')

These two solutions collate several excellent answers and caveats raised by other posters including @Martin Smith, @Svish and @vasin1987.

These options add NULL to '' (empty string) casting for safe NULL handling while accounting for the varying behaviour of the + operator pertaining to specific operands.

Note the ODBC Scaler Function solution is limited to 2 arguments whereas the + operator approach is scalable to many arguments as needed.

Note also the potential issue identified by @Swifty regarding the default varchar size here remedied by varchar(MAX).

If anyone else comes across this and the accepted answer doesn't work (it didn't for me), check to see if you need to specify a port other than 80. In my case, I was running a rails server at localhost:3000 and was just using curl http://localhost, which was hitting port 80.

Changing the command to curl http://localhost:3000 is what worked in my case.

I found this one more helpful and simple

DECLARE @StartTime datetime,@EndTime datetime   
SELECT @StartTime=GETDATE() 
--Your Query to be run goes here--  
SELECT @EndTime=GETDATE()   
SELECT DATEDIFF(ms,@StartTime,@EndTime) AS [Duration in milliseconds]   

php can call command line operations so

echo exec("pwd");

Add path of your PHP to Windows System Path. The path should contain php.exe.

After adding the path open a new command prompt and make sure php.exe is in path by typing

C:\>php --help

Once you see proper help message from above, enable the php_ldap.dll extension in php.ini

Also copy php_ldap.dll from php/ext directory to apache/bin folder

Restart wamp and phpinfo() will now show ldap enabled.

It seems that the setBackground() method doesn't work well on some platforms (I'm using Windows 7). I found this answer to this question helpful. However, I didn't entirely use it to solve my problem. Instead, I decided it'd be much easier and almost as aesthetic to color a panel next to the button.

This worked for me to discard changes on the live remote server and pull from the source control GitHub:

git reset --hard
git pull origin master

echo "<pre>";
print_r($this->session->all_userdata());
echo "</pre>";

Display yet formatting then you can view properly.

It doesn't work because you didn't attach the ScrollPane to the JFrame.

Also, you don't need 2 JScrollPanes:

JFrame frame = new JFrame ("Test");
JTextArea textArea = new JTextArea ("Test");

JScrollPane scroll = new JScrollPane (textArea, 
   JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);

frame.add(scroll);
frame.setVisible (true);

auto is not a valid value for padding property, the only thing you can do is take out padding: 0; from the * declaration, else simply assign padding to respective property block.

If you remove padding: 0; from * {} than browser will apply default styles to your elements which will give you unexpected cross browser positioning offsets by few pixels, so it is better to assign padding: 0; using * and than if you want to override the padding, simply use another rule like

.container p {
   padding: 5px;
}

PHP is evaluated at the server; javascript is evaluated at the client/browser, thus you can't call a PHP function from javascript directly. But you can issue an HTTP request to the server that will activate a PHP function, with AJAX.

Another option is to use modal segue

STEP 1: Go to the storyboard, and give the View Controller a Storyboard ID. You can find where to change the storyboard ID in the Identity Inspector on the right. Lets call the storyboard ID ModalViewController

STEP 2: Open up the 'sender' view controller (let's call it ViewController) and add this code to it

public class ViewController {
  override func viewDidLoad() {
    showModalView()
  }

  func showModalView() {
    if let mvc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "ModalViewController") as? ModalViewController {
      self.present(mvc, animated: true, completion: nil)
    }
  }
}

Note that the View Controller we want to open is also called ModalViewController

STEP 3: To close ModalViewController, add this to it

public class ModalViewController {
   @IBAction func closeThisViewController(_ sender: Any?) {
      self.presentingViewController?.dismiss(animated: true, completion: nil)
   }
}

You can use the flex property at the parent div and add the margin:auto property to the children items:

.parent {
    display: flex;
    /* You can change this to `row` if you want the items side by side instead of stacked */
    flex-direction: column;
}

/* Change the `p` tag to what your items child items are */
.parent p {
    margin: auto;
}

You can see more options of flex here: https://css-tricks.com/snippets/css/a-guide-to-flexbox/

Use Query.setParameterList(), Javadoc here.

There are four variants to pick from.

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

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

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

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

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

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

1.) you cannot use big border on parent -- in case you want to have a specific border

2.) you cannot add margin -- in case your parent is a part of some other container and you want your parent to take the full width of that grand parent.

The Only Solution that should be applicable is to wrap your children's in an another container so that your parent becomes the grandparent and then apply padding to the new children's Wrapper / Parent. Or you can directly apply padding to the children.

In your case:

.css-sux{
  padding: 0px 10px 10px 10px;
}

The curly braces mean concatenation, from most significant bit (MSB) on the left down to the least significant bit (LSB) on the right. You are creating a 32-bit bus (result) whose 16 most significant bits consist of 16 copies of bit 15 (the MSB) of the a bus, and whose 16 least significant bits consist of just the a bus (this particular construction is known as sign extension, which is needed e.g. to right-shift a negative number in two's complement form and keep it negative rather than introduce zeros into the MSBits).

There is a tutorial here*, but it doesn't explain too much more than the above paragraph.

For what it's worth, the nested curly braces around a[15:0] are superfluous.

*Beware: the example within the tutorial link contains a typo when demonstrating multiple concatenations - the (2{C}} should be a {2{2}}.

The problem is that they're all the same exact list in memory. When you use the [x]*n syntax, what you get is a list of n many x objects, but they're all references to the same object. They're not distinct instances, rather, just n references to the same instance.

To make a list of 3 different lists, do this:

x = [[] for i in range(3)]

This gives you 3 separate instances of [], which is what you want

[[]]*n is similar to

l = []
x = []
for i in range(n):
    x.append(l)

While [[] for i in range(3)] is similar to:

x = []
for i in range(n):
    x.append([])   # appending a new list!

In [20]: x = [[]] * 4

In [21]: [id(i) for i in x]
Out[21]: [164363948, 164363948, 164363948, 164363948] # same id()'s for each list,i.e same object


In [22]: x=[[] for i in range(4)]

In [23]: [id(i) for i in x]
Out[23]: [164382060, 164364140, 164363628, 164381292] #different id(), i.e unique objects this time

Just as a note you can also use this for iPads:

activityViewController.popoverPresentationController?.sourceView = sender

So the popover pops from the sender (the button in that case).

I see that you tagged bash, but Perl would also be a good way to do this:

perl -p -e '`chmod 755 $_`' file.txt

You could also apply a regex to make sure you're getting the right files, e.g. to only process .txt files:

perl -p -e 'if(/\.txt$/) `chmod 755 $_`' file.txt

To "preview" what's happening, just replace the backticks with double quotes and prepend print:

perl -p -e 'if(/\.txt$/) print "chmod 755 $_"' file.txt

Using awk:

export INDEX=2
export VALUE=bar

awk -F, '$'$INDEX' ~ /^'$VALUE'$/ {print}' inputfile.csv

Edit: As per Dennis Williamson's excellent comment, this could be much more cleanly (and safely) written by defining awk variables using the -v switch:

awk -F, -v index=$INDEX -v value=$VALUE '$index == value {print}' inputfile.csv

Jeez...with variables, and everything, awk is almost a real programming language...

You can do something like this:

var cubes = [
 [1, 2, 3],
 [4, 5, 6],    
 [7, 8, 9],
];

for(var i = 0; i < cubes.length; i++) {
    var cube = cubes[i];
    for(var j = 0; j < cube.length; j++) {
        display("cube[" + i + "][" + j + "] = " + cube[j]);
    }
}

Working jsFiddle:

• http://jsfiddle.net/TRR4n/

The output of the above:

cube[0][0] = 1
cube[0][1] = 2
cube[0][2] = 3
cube[1][0] = 4
cube[1][1] = 5
cube[1][2] = 6
cube[2][0] = 7
cube[2][1] = 8
cube[2][2] = 9

Somewhere, you need to tell Apache that people are allowed to see contents of this directory.

<Directory "F:/bar/public">
    Order Allow,Deny
    Allow from All
    # Any other directory-specific stuff
</Directory>

More info

If you use the moment js library it can easily be done like this -

jQuery.validator.addMethod("validDate", function(value, element) {
        return this.optional(element) || moment(value,"DD/MM/YYYY").isValid();
    }, "Please enter a valid date in the format DD/MM/YYYY");

Below is what i did to hide some Id element when screen size is below 768px, and show up when is above 768px. It works great.

var screensize= $( window ).width();

if(screensize<=768){
        if($('#column-d0f6e77c699556473e4ff2967e9c0251').length>0)
            {
                $('#column-d0f6e77c699556473e4ff2967e9c0251').css('display','none');
            }
}
else{
        if($('#column-d0f6e77c699556473e4ff2967e9c0251').length>0)
            {
                $('#column-d0f6e77c699556473e4ff2967e9c0251').removeAttr( "style" );
            }

}
changething = function(screensize){
        if(screensize<=768){
            if($('#column-d0f6e77c699556473e4ff2967e9c0251').length>0)
            {
                $('#column-d0f6e77c699556473e4ff2967e9c0251').css('display','none');
            }
        }
        else{
        if($('#column-d0f6e77c699556473e4ff2967e9c0251').length>0)
            {
                $('#column-d0f6e77c699556473e4ff2967e9c0251').removeAttr( "style" );
            }

        }
}
$( window ).resize(function() {
 var screensize= $( window ).width();
  changething(screensize);
});

The easiest way to convert a QString to char* is qPrintable(const QString& str), which is a macro expanding to str.toLocal8Bit().constData().

yourTextView.setGravity(Gravity.CENTER);

There are two problems here. First, you can only call getTime on an instance of the date. You need to wrap new Date in brackets or assign it to variable.

Second, you need to pass it a string in a proper format.

Working example:

(new Date("2012-02-26")).getTime();

if you want to delete test branch then

Step1

• go to other branch
• git branch -d branch_name

More Detail in depth

try this:

Sub test()

With Application.WorksheetFunction
    Cells(.CountA(Columns("A:A")) + 1, 1).Select
End With

End Sub

Hope this works for you.

If you want to know only some basics inside the dll assembly e.g. Classes, method etc.,to load them dyanamically

you can make use of IL Disassembler tool provided by Microsoft.

Generally located at: "C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Bin"

I had the same problem, but with small difference. I had added NetworkConnectionCallback to check situation when internet connection had changed at runtime, and checking like this before sending all requests:

private fun isConnected(): Boolean {
    val activeNetwork = cManager.activeNetworkInfo
    return activeNetwork != null && activeNetwork.isConnected
}

There can be state like CONNECTING (you can see i? when you turn on wifi, icon starts blinking, after connecting to network, image is static). So, we have two different states: one CONNECT another CONNECTING, and when Retrofit tried to send request internet connection is disabled and it throws UnknownHostException. I forgot to add another type of exception in function which was responsible for sending requests.

try{
//for example, retrofit call
}
catch (e: Exception) {
        is UnknownHostException -> "Unknown host!"
        is ConnectException -> "No internet!"
        else -> "Unknown exception!"
    }

It's just a tricky moment that can by related with this problem.

Hope, I will help somebody)

Via Jquery:

$(location).attr('href','http://example.com/Registration/Success/');

I think you have to options:

1. Build a dynamic SQL using sys.tables and sys.columns to perform the search (example here).

2. Use any program that have this function. An example of this is SQL Workbench (free).

You could also try listing the css in the style sheet as !important

Log from Silverlight

When using NLog with Silverlight you can send the trace to the server side via the provided web service. You can also write to a local file in the Isolated Storage, which come in handy if the web server is unavailable. See here for details, i.e. use something like this to make yourself a target:

namespace NLogTargets
{
    [Target("IsolatedStorageTarget")]
    public sealed class IsolatedStorageTarget : TargetWithLayout
    {
        IsolatedStorageFile _storageFile = null;
        string _fileName = "Nlog.log"; // Default. Configurable through the 'filename' attribute in nlog.config

        public IsolatedStorageTarget()
        {
        }

        ~IsolatedStorageTarget()
        {
            if (_storageFile != null)
            {
                _storageFile.Dispose();
                _storageFile = null;
            }
        }

        public string filename
        {
            set
            {
                _fileName = value; 
            }
            get
            {
                return _fileName;  
            }
         }

        protected override void Write(LogEventInfo logEvent)
        {
            try
            {
                writeToIsolatedStorage(this.Layout.Render(logEvent));
            }
            catch (Exception e)
            {
                // Not much to do about his....
            }
        }

        public void writeToIsolatedStorage(string msg)
        {
            if (_storageFile == null)
                _storageFile = IsolatedStorageFile.GetUserStoreForApplication();
            using (IsolatedStorageFile isolatedStorage = IsolatedStorageFile.GetUserStoreForApplication())
            {
                // The isolated storage is limited in size. So, when approaching the limit
                // simply purge the log file. (Yeah yeah, the file should be circular, I know...)
                if (_storageFile.AvailableFreeSpace < msg.Length * 100)
                {
                    using (IsolatedStorageFileStream stream = new IsolatedStorageFileStream(_fileName, FileMode.Truncate, FileAccess.Write, isolatedStorage))
                    { }
                }
                // Write to isolated storage
                using (IsolatedStorageFileStream stream = new IsolatedStorageFileStream(_fileName, FileMode.Append, FileAccess.Write, isolatedStorage))
                {
                    using (TextWriter writer = new StreamWriter(stream))
                    {
                        writer.WriteLine(msg);
                    }
                }
            }
        }
    } 
}

By C89, variable can only be defined at the top of a block.

if (a == 1)
    int b = 10;   // it's just a statement, syntacitially error 

if (a == 1)
{                  // refer to the beginning of a local block 
    int b = 10;    // at the top of the local block, syntacitially correct
}                  // refer to the end of a local block

if (a == 1)
{
    func();
    int b = 10;    // not at the top of the local block, syntacitially error, I guess
}

The subquery option has already been answered, but note that in many cases a LEFT JOIN can be a faster way to do this:

SELECT table1.*
FROM table1 LEFT JOIN table2 ON table2.principal=table1.principal
WHERE table2.principal IS NULL

If you want to check multiple tables to make sure it's not present in any of the tables (like in SRKR's comment), you can use this:

SELECT table1.*
FROM table1
LEFT JOIN table2 ON table2.name=table1.name
LEFT JOIN table3 ON table3.name=table1.name
WHERE table2.name IS NULL AND table3.name IS NULL

//for normal state:

btnSecurite.setTitle("TextHear", for: .normal)

The $ symbol simply invokes the jQuery library's selector functionality. So $("#Text") returns the jQuery object for the Text div which can then be modified.

Yes, the solution is to use setTimeout, like this:

var delay = 10000;
var url = "https://stackoverflow.com";
var timeoutID = setTimeout(function() {
    window.location.href = url;
}, delay);

note that the result was stored into timeoutID. If, for whatever reason you need to cancel the order, you just need to call

clearTimeout(timeoutID);

Update for swift 4 for Dashrath answer

import UIKit
import EventKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        let eventStore = EKEventStore()

        eventStore.requestAccess( to: EKEntityType.event, completion:{(granted, error) in

            if (granted) && (error == nil) {


                let event = EKEvent(eventStore: eventStore)

                event.title = "My Event"
                event.startDate = Date(timeIntervalSinceNow: TimeInterval())
                event.endDate = Date(timeIntervalSinceNow: TimeInterval())
                event.notes = "Yeah!!!"
                event.calendar = eventStore.defaultCalendarForNewEvents

                var event_id = ""
                do{
                    try eventStore.save(event, span: .thisEvent)
                    event_id = event.eventIdentifier
                }
                catch let error as NSError {
                    print("json error: \(error.localizedDescription)")
                }

                if(event_id != ""){
                    print("event added !")
                }
            }
        })
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}

also don't forget to add permission for calendar usage

1. In the designer, create an outlet for the cell(s) you want to hide. For example you want to hide 'cellOne', so in viewDidLoad() do this

cellOneOutlet.hidden = true

now override the below method, check which cell status is hidden and return height 0 for those cell(s). This is one of many ways you can hide any cell in static tableView in swift.

override func tableView(tableView: UITableView, heightForRowAtIndexPathindexPath: NSIndexPath) -> CGFloat 
{

let tableViewCell = super.tableView(tableView,cellForRowAtIndexPath: indexPath)

        if tableViewCell.hidden == true
        {
            return 0
        }
        else{
             return super.tableView(tableView, heightForRowAtIndexPath: indexPath)
        }

}

It depends on how much content your website has. At first I used a database like all other people here, but it can be time-consuming to script all the workings of a database. I don't say that this is an ideal method and especially if you have a lot of text, but if you want to do it fast without using a database, this method could work, though, you can't allow users to input data which will be used as translation-files. But if you add the translations yourself, it will work:

Let's say you have this text:

Welcome!

You can input this in a database with translations, but you can also do this:

$welcome = array(
"English"=>"Welcome!",
"German"=>"Willkommen!",
"French"=>"Bienvenue!",
"Turkish"=>"Hosgeldiniz!",
"Russian"=>"????? ??????????!",
"Dutch"=>"Welkom!",
"Swedish"=>"Välkommen!",
"Basque"=>"Ongietorri!",
"Spanish"=>"Bienvenito!"
"Welsh"=>"Croeso!");

Now, if your website uses a cookie, you have this for example:

$_COOKIE['language'];

To make it easy let's transform it in a code which can easily be used:

$language=$_COOKIE['language'];

If your cookie language is Welsh and you have this piece of code:

echo $welcome[$language];

The result of this will be:

Croeso!

If you need to add a lot of translations for your website and a database is too consuming, using an array can be an ideal solution.

In Windows it is dependent on the "Regional and Language Options" customize screen where you find a List separator. This is the char Windows applications expect to be the CSV separator.

Of course this only has effect in Windows applications, for example Excel will not automatically split data into columns if the file is not using the above mentioned separator. All applications that use Windows regional settings will have this behavior.

If you are writing a program for Windows that will require importing the CSV in other applications and you know that the list separator set for your target machines is ,, then go for it, otherwise I prefer ; since it causes less problems with decimal points, digit grouping and does not appear in much text.

You can do:

getMap(locations.toArray(new WorldLocation[locations.size()]));

or

getMap(locations.toArray(new WorldLocation[0]));

or

getMap(new WorldLocation[locations.size()]);

@SuppressWarnings("unchecked") is needed to remove the ide warning.

Use List.indexOf(). This will give you the first match when there are multiple duplicates.

In my case it only worked when I put not null. I think this is a constraint.

ALTER TABLE document MODIFY COLUMN document_id INT NOT NULL AUTO_INCREMENT;

Try using:

if(NewType* v = dynamic_cast<NewType*>(old)) {
   // old was safely casted to NewType
   v->doSomething();
}

This requires your compiler to have rtti support enabled.

EDIT: I've had some good comments on this answer!

Every time you need to use a dynamic_cast (or instanceof) you'd better ask yourself whether it's a necessary thing. It's generally a sign of poor design.

Typical workarounds is putting the special behaviour for the class you are checking for into a virtual function on the base class or perhaps introducing something like a visitor where you can introduce specific behaviour for subclasses without changing the interface (except for adding the visitor acceptance interface of course).

As pointed out dynamic_cast doesn't come for free. A simple and consistently performing hack that handles most (but not all cases) is basically adding an enum representing all the possible types your class can have and check whether you got the right one.

if(old->getType() == BOX) {
   Box* box = static_cast<Box*>(old);
   // Do something box specific
}

This is not good oo design, but it can be a workaround and its cost is more or less only a virtual function call. It also works regardless of RTTI is enabled or not.

Note that this approach doesn't support multiple levels of inheritance so if you're not careful you might end with code looking like this:

// Here we have a SpecialBox class that inherits Box, since it has its own type
// we must check for both BOX or SPECIAL_BOX
if(old->getType() == BOX || old->getType() == SPECIAL_BOX) {
   Box* box = static_cast<Box*>(old);
   // Do something box specific
}

I guess you will get ORA-01741: illegal zero-length identifier if you use the following

SELECT "" AS Contact  FROM Customers;

And if you use the following 2 statements, you will be getting the same null value populated in the column.

SELECT '' AS Contact FROM Customers; OR SELECT null AS Contact FROM Customers;

You are right. This has nothing to do with jQuery though.

var myArray = [];
myArray.push("foo");
// myArray now contains "foo" at index 0.

Dispatcher.ShutdownStarted event is fired only at the end of application. It's worth to call the disposing logic just when control gets out of use. In particular it frees resources when control is used many times during application runtime. So ioWint's solution is preferable. Here's the code:

public MyWpfControl()
{
     InitializeComponent();
     Loaded += (s, e) => { // only at this point the control is ready
         Window.GetWindow(this) // get the parent window
               .Closing += (s1, e1) => Somewhere(); //disposing logic here
     };
}

Take a look at example E of this tutorial -> https://www.postgresqltutorial.com/postgresql-group-by/

You need to call the function on your GROUP BY instead of calling the name of the virtual attribute you created on select. I was doing what all the answers above recommended and I was getting a column 'year_month' does not exist error.

What worked for me was:

SELECT 
    date_trunc('month', created_at), 'MM/YYYY' AS month
FROM 
    "orders"  
GROUP BY 
    date_trunc('month', created_at)

Change CI index.php file to:

if ($_SERVER['SERVER_NAME'] == 'local_server_name') {
    define('ENVIRONMENT', 'development');
} else {
    define('ENVIRONMENT', 'production');
}

if (defined('ENVIRONMENT')){
    switch (ENVIRONMENT){
        case 'development':
            error_reporting(E_ALL);
        break;

        case 'testing':
        case 'production':
            error_reporting(0);
        break;

        default:
            exit('The application environment is not set correctly.');
    }
}

IF PHP errors are off, but any MySQL errors are still going to show, turn these off in the /config/database.php file. Set the db_debug option to false:

$db['default']['db_debug'] = FALSE; 

Also, you can use active_group as development and production to match the environment https://www.codeigniter.com/user_guide/database/configuration.html

$active_group = 'development';


$db['development']['hostname'] = 'localhost';
$db['development']['username'] = '---';
$db['development']['password'] = '---';
$db['development']['database'] = '---';
$db['development']['dbdriver'] = 'mysql';
$db['development']['dbprefix'] = '';
$db['development']['pconnect'] = TRUE;

$db['development']['db_debug'] = TRUE;

$db['development']['cache_on'] = FALSE;
$db['development']['cachedir'] = '';
$db['development']['char_set'] = 'utf8';
$db['development']['dbcollat'] = 'utf8_general_ci';
$db['development']['swap_pre'] = '';
$db['development']['autoinit'] = TRUE;
$db['development']['stricton'] = FALSE;



$db['production']['hostname'] = 'localhost';
$db['production']['username'] = '---';
$db['production']['password'] = '---';
$db['production']['database'] = '---';
$db['production']['dbdriver'] = 'mysql';
$db['production']['dbprefix'] = '';
$db['production']['pconnect'] = TRUE;

$db['production']['db_debug'] = FALSE;

$db['production']['cache_on'] = FALSE;
$db['production']['cachedir'] = '';
$db['production']['char_set'] = 'utf8';
$db['production']['dbcollat'] = 'utf8_general_ci';
$db['production']['swap_pre'] = '';
$db['production']['autoinit'] = TRUE;
$db['production']['stricton'] = FALSE;

NO, when you are using only one "=" you are assigning the variable.

You must use "==" : You must use "===" :

if (somevar === '836e3ef9-53d4-414b-a401-6eef16ac01d6'){
 $("#code").text(data.DATA[0].ID);
}

You could use fonction like .toLowerCase() to avoid case problem if you want

To answer my own question, the trick is to turn auto scaling off...

p.axis([0.0,600.0, 10000.0,20000.0])
ax = p.gca()
ax.set_autoscale_on(False)

CHAR is fixed length and VARCHAR is variable length. CHAR always uses the same amount of storage space per entry, while VARCHAR only uses the amount necessary to store the actual text.

1.Create AlertDialog set message,title and Positive,Negative Button:

final AlertDialog alertDialog = new AlertDialog.Builder(this)
                        .setCancelable(false)
                        .setTitle("Confirmation")
                        .setMessage("Do you want to remove this Picture?")
                        .setPositiveButton("Yes",null)
                        .setNegativeButton("No",null)
                        .create();

2.Now find both buttons on DialogInterface Click then setOnClickListener():

alertDialog.setOnShowListener(new DialogInterface.OnShowListener() {
            @Override
            public void onShow(DialogInterface dialogInterface) {
                Button yesButton = (alertDialog).getButton(android.app.AlertDialog.BUTTON_POSITIVE);
                Button noButton = (alertDialog).getButton(android.app.AlertDialog.BUTTON_NEGATIVE);
                yesButton.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        //Now Background Class To Update Operator State
                        alertDialog.dismiss();
                        Toast.makeText(GroundEditActivity.this, "Click on Yes", Toast.LENGTH_SHORT).show();
                        //Do Something here 
                    }
                });

                noButton.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        alertDialog.dismiss();
                        Toast.makeText(GroundEditActivity.this, "Click on No", Toast.LENGTH_SHORT).show();
                        //Do Some Thing Here 
                    }
                });
            }
        });

3.To Show Alertdialog:

alertDialog.show();

Note: Don't forget Final Keyword with AlertDialog.

You can search your hard drive for one of the programs that's installed with the SDK. For instance, if you search for aapt.exe or adb.exe, they will be in the platform-tools directory underneath the installation directory (which is what you're after).

Implementing Comparable means "I can compare myself with another object." This is typically useful when there's a single natural default comparison.

Implementing Comparator means "I can compare two other objects." This is typically useful when there are multiple ways of comparing two instances of a type - e.g. you could compare people by age, name etc.

You can use 0b000001 since Visual Studio 2017 (C# 7.0)

This is how to install a normal MSI file silently:

msiexec.exe /i c:\setup.msi /QN /L*V "C:\Temp\msilog.log"

Quick explanation:

 /L*V "C:\Temp\msilog.log"= verbose logging at indicated path
 /QN = run completely silently
 /i = run install sequence 

The msiexec.exe command line is extensive with support for a variety of options. Here is another overview of the same command line interface. Here is an annotated versions (was broken, resurrected via way back machine).

It is also possible to make a batch file a lot shorter with constructs such as for loops as illustrated here for Windows Updates.

If there are check boxes that must be checked during the setup, you must find the appropriate PUBLIC PROPERTIES attached to the check box and set it at the command line like this:

msiexec.exe /i c:\setup.msi /QN /L*V "C:\Temp\msilog.log" STARTAPP=1 SHOWHELP=Yes

These properties are different in each MSI. You can find them via the verbose log file or by opening the MSI in Orca, or another appropriate tool. You must look either in the dialog control section or in the Property table for what the property name is. Try running the setup and create a verbose log file first and then search the log for messages ala "Setting property..." and then see what the property name is there. Then add this property with the value from the log file to the command line.

Also have a look at how to use transforms to customize the MSI beyond setting command line parameters: How to make better use of MSI files

I've had this problem and couldn't find why it kept happening. The reason is simple: Once you have set up the environment paths, you have to close the CMD window, and open it again for it be aware of new environment paths.

In my case opening 'Help' >> "Install New Software" had no entries for any URLs (previous url's were not there) - so I Manually added 'em. And updated ... and Voilaaaa !! Above posts have been very helpful in resolving this issue for me.

Tested on iTunes 12.5.3.17

1.Open the iTunes select the “Apps” section with in that select the “Library”

2.Now drag and drop the file AppName.ipa in this Library section (Before connecting your iOS device to your computer machine)

3.Now connect your iOS device to your computer machine, we are able to see our device in iTunes…

4.Select your device go to “Apps” section of your device and search your App in the list of apps with "Install" button infront of it.

5.Now hit the “Install” button and then press the “Done” button in bottom right corner, The “Install” button will turn in to “Will Install” one alert will be shown to you with two options “Don’t Apply”, “Apply”, hit on option “Apply”.

6.The “App installation” will start on your device with progress….

7.Finally the app will be installed on your iOS device and you will be able to use it…

Needs to be:

if (document.forms[0].elements["checkAddress"].checked == true)

Assuming you have one form, otherwise use the form name.

As a side note, don't call the element and the function in the same name it can cause weird conflicts.

Using printf you can do

printf("Here are the first 8 chars: %.8s\n", "A string that is more than 8 chars");

If you're using C++, you can achieve the same result using the STL:

using namespace std; // for clarity
string s("A string that is more than 8 chars");
cout << "Here are the first 8 chars: ";
copy(s.begin(), s.begin() + 8, ostream_iterator<char>(cout));
cout << endl;

Or, less efficiently:

cout << "Here are the first 8 chars: " <<
        string(s.begin(), s.begin() + 8) << endl;

Why grep ps, when the pid has been written to the $CATALINA_PID file?

I have a cron'd checker script which sends out an email when tomcat is down:

kill -0 `cat $CATALINA_PID` > /dev/null 2>&1
if [ $? -gt 0 ]
then
    echo "Check tomcat" | mailx -s "Tomcat not running" [email protected]
fi

I guess you could also use wget to check the health of your tomcat. If you have a diagnostics page with user load etc, you could fetch it periodically and parse it to determine if anything is going wrong.

This is not subjective. Make sure your headers don't rely on being #included in specific order. You can be sure it doesn't matter what order you include STL or Boost headers.

Look at:

CMAKE_EXE_LINKER_FLAGS
CMAKE_MODULE_LINKER_FLAGS
CMAKE_SHARED_LINKER_FLAGS
CMAKE_STATIC_LINKER_FLAGS

Escape with a double backslash

R treats backslashes as escape values for character constants. (... and so do regular expressions. Hence the need for two backslashes when supplying a character argument for a pattern. The first one isn't actually a character, but rather it makes the second one into a character.) You can see how they are processed using cat.

y <- "double quote: \", tab: \t, newline: \n, unicode point: \u20AC"
print(y)
## [1] "double quote: \", tab: \t, newline: \n, unicode point: €"
cat(y)
## double quote: ", tab:    , newline: 
## , unicode point: €

Further reading: Escaping a backslash with a backslash in R produces 2 backslashes in a string, not 1

To use special characters in a regular expression the simplest method is usually to escape them with a backslash, but as noted above, the backslash itself needs to be escaped.

grepl("\\[", "a[b")
## [1] TRUE

To match backslashes, you need to double escape, resulting in four backslashes.

grepl("\\\\", c("a\\b", "a\nb"))
## [1]  TRUE FALSE

The rebus package contains constants for each of the special characters to save you mistyping slashes.

library(rebus)
OPEN_BRACKET
## [1] "\\["
BACKSLASH
## [1] "\\\\"

For more examples see:

?SpecialCharacters

Your problem can be solved this way:

library(rebus)
grepl(OPEN_BRACKET, "a[b")

Form a character class

You can also wrap the special characters in square brackets to form a character class.

grepl("[?]", "a?b")
## [1] TRUE

Two of the special characters have special meaning inside character classes: \ and ^.

Backslash still needs to be escaped even if it is inside a character class.

grepl("[\\\\]", c("a\\b", "a\nb"))
## [1]  TRUE FALSE

Caret only needs to be escaped if it is directly after the opening square bracket.

grepl("[ ^]", "a^b")  # matches spaces as well.
## [1] TRUE
grepl("[\\^]", "a^b") 
## [1] TRUE

rebus also lets you form a character class.

char_class("?")
## <regex> [?]

Use a pre-existing character class

If you want to match all punctuation, you can use the [:punct:] character class.

grepl("[[:punct:]]", c("//", "[", "(", "{", "?", "^", "$"))
## [1] TRUE TRUE TRUE TRUE TRUE TRUE TRUE

stringi maps this to the Unicode General Category for punctuation, so its behaviour is slightly different.

stri_detect_regex(c("//", "[", "(", "{", "?", "^", "$"), "[[:punct:]]")
## [1]  TRUE  TRUE  TRUE  TRUE  TRUE FALSE FALSE

You can also use the cross-platform syntax for accessing a UGC.

stri_detect_regex(c("//", "[", "(", "{", "?", "^", "$"), "\\p{P}")
## [1]  TRUE  TRUE  TRUE  TRUE  TRUE FALSE FALSE

Use \Q \E escapes

Placing characters between \\Q and \\E makes the regular expression engine treat them literally rather than as regular expressions.

grepl("\\Q.\\E", "a.b")
## [1] TRUE

rebus lets you write literal blocks of regular expressions.

literal(".")
## <regex> \Q.\E

Don't use regular expressions

Regular expressions are not always the answer. If you want to match a fixed string then you can do, for example:

grepl("[", "a[b", fixed = TRUE)
stringr::str_detect("a[b", fixed("["))
stringi::stri_detect_fixed("a[b", "[")

If you are using CMake, there are some ways that you could solve it:

Solution 1: The most elegant one

add_executable(...)
target_include_directories(...)
target_link_libraries(target_name pthread)

Solution 2: using CMake find_package

find_package(Threads REQUIRED) # this will generate the flag for CMAKE_THREAD_LIBS_INIT

add_executable(...)
target_include_directories(...)
target_link_libraries(target_name ${CMAKE_THREAD_LIBS_INIT})

Solution 3: Change CMake flags

# e.g. with C++ 17, change to other version if you need
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17 -pthread")

Both memcpy and memove do similar things.

But to sight out one difference:

#include <memory.h>
#include <string.h>
#include <stdio.h>

char str1[7] = "abcdef";

int main()
{

   printf( "The string: %s\n", str1 );
   memcpy( (str1+6), str1, 10 );
   printf( "New string: %s\n", str1 );

   strcpy_s( str1, sizeof(str1), "aabbcc" );   // reset string


   printf("\nstr1: %s\n", str1);
   printf( "The string: %s\n", str1 );
   memmove( (str1+6), str1, 10 );
   printf( "New string: %s\n", str1 );

}

gives:

The string: abcdef
New string: abcdefabcdefabcd
The string: abcdef
New string: abcdefabcdef

When use CMS GC in jdk1.8 will appeare this error, i change the G1 Gc solve this problem.

 -Xss512k -Xms6g -Xmx6g -XX:+UseG1GC -XX:MaxGCPauseMillis=200 -XX:InitiatingHeapOccupancyPercent=70 -XX:NewRatio=1 -XX:SurvivorRatio=6 -XX:G1ReservePercent=10 -XX:G1HeapRegionSize=32m -XX:ConcGCThreads=6 -Xloggc:gc.log -XX:+HeapDumpOnOutOfMemoryError -XX:+PrintGC -XX:+PrintGCDetails -XX:+PrintGCTimeStamps 

In order to checkout a git tag , you would execute the following command

git checkout tags/tag-name -b branch-name

eg as mentioned below.

 git checkout tags/v1.0 -b v1.0-branch

To fetch the all tags use the command

git fetch --all --tags

Ok why the complicated use of libraries and stuff? C++ String objects overload the [] operator, so you can just compare chars.. Like what I just did, because I want to list all files in a directory and ignore invisible files and the .. and . pseudofiles.

while ((ep = readdir(dp)))
{
    string s(ep->d_name);
    if (!(s[0] == '.')) // Omit invisible files and .. or .
        files.push_back(s);
}

It's that simple..

The only solution I've found (almost instantly after posting the question), is to loop through the array and use Object.assign()

Like this:

public duplicateArray() {
  let arr = [];
  this.content.forEach((x) => {
    arr.push(Object.assign({}, x));
  })
  arr.map((x) => {x.status = DEFAULT});
  return this.content.concat(arr);
}

I know this is not optimal. And I wonder if there's any better solutions.

Steps:

1. Create a dataframe
2. Create a function
3. Use the named arguments of the function in the apply statement.

Example

x=pd.DataFrame([1,2,3,4])  

def add(i1, i2):  
    return i1+i2

x.apply(add,i2=9)

The outcome of this example is that each number in the dataframe will be added to the number 9.

    0
0  10
1  11
2  12
3  13

Explanation:

The "add" function has two parameters: i1, i2. The first parameter is going to be the value in data frame and the second is whatever we pass to the "apply" function. In this case, we are passing "9" to the apply function using the keyword argument "i2".

user1  = pd.read_csv('dataset/1.csv',  names=['Time',  'X',  'Y',  'Z']) 

names parameter in read_csv function is used to define column names. If you pass extra name in this list, it will add another new column with that name with NaN values.

header=None is used to trim column names is already exists in CSV file.

If it is something to do with the data in your database, why not utilize database isolation locking to achieve?

You can do as follows:

Select Format(test.Time, 'yyyyMMdd')
From TableTest test

Thoroughly Understand All Data Types and Structures

For every type and structure, write a series of demo programs that exercise every aspect of the type or data structure. If you do this, it might be worthwhile to blog notes on each one... it might be useful to lots of people!

Of course there IS a way to create files without opening. It's as easy as calling os.mknod("newfile.txt"). The only drawback is that this call requires root privileges on OSX.

string s2 = s1.Replace(",", ",\n") + ",....";

You can use myMap.forEach, and in each loop, using map.set to change value.

myMap = new Map([_x000D_
  ["a", 1],_x000D_
  ["b", 2],_x000D_
  ["c", 3]_x000D_
]);_x000D_
_x000D_
for (var [key, value] of myMap.entries()) {_x000D_
  console.log(key + ' = ' + value);_x000D_
}_x000D_
_x000D_
_x000D_
myMap.forEach((value, key, map) => {_x000D_
  map.set(key, value+1)_x000D_
})_x000D_
_x000D_
for (var [key, value] of myMap.entries()) {_x000D_
  console.log(key + ' = ' + value);_x000D_
}

So this is one of the top hits in Google for styling Leaflet Icon, but it didn't have a solution that worked without third parties, and I was having this problem in React as we needed dynamic colours for our routes and icons.

The solution I came up with was to use Leaflet.DivIcon html attribute, it allows you to pass a string which is evaluated into a DOM element.

So for example I created a marker style follows:

const myCustomColour = '#583470'

const markerHtmlStyles = `
  background-color: ${myCustomColour};
  width: 3rem;
  height: 3rem;
  display: block;
  left: -1.5rem;
  top: -1.5rem;
  position: relative;
  border-radius: 3rem 3rem 0;
  transform: rotate(45deg);
  border: 1px solid #FFFFFF`

const icon = Leaflet.divIcon({
  className: "my-custom-pin",
  iconAnchor: [0, 24],
  labelAnchor: [-6, 0],
  popupAnchor: [0, -36],
  html: `<span style="${markerHtmlStyles}" />`
})

Change background-color in markerHtmlStyles to your custom colour and you're good to go.

An interesting fact.

I was sure TRUNCATE will always perform better, but in my case, for a database with approximately 30 tables with foreign keys, populated with only a few rows, it took about 12 seconds to TRUNCATE all tables, as opposed to only a few hundred milliseconds to DELETE the rows. Setting the auto increment adds about a second in total, but it's still a lot better.

So I would suggest try both, see which works faster for your case.

You can use jQuery click instead of using onclick attribute, Try the following:

$('table').on('click', 'input[type="button"]', function(e){
   $(this).closest('tr').remove()
})

Demo

Try this one-shot solution that should figure out where ImageMagick is, if you have access to it...

This found all versions on my Godaddy hosting.

Upload this file to your server and call it ImageMagick.php or something then run it. You will get all the info you need... hopefully...

Good luck.

<?
/*
// This file will run a test on your server to determine the location and versions of ImageMagick. 
//It will look in the most commonly found locations. The last two are where most popular hosts (including "Godaddy") install ImageMagick.
//
// Upload this script to your server and run it for a breakdown of where ImageMagick is.
//
*/
echo '<h2>Test for versions and locations of ImageMagick</h2>';
echo '<b>Path: </b> convert<br>';

function alist ($array) {  //This function prints a text array as an html list.
    $alist = "<ul>";
    for ($i = 0; $i < sizeof($array); $i++) {
        $alist .= "<li>$array[$i]";
    }
    $alist .= "</ul>";
    return $alist;
}

exec("convert -version", $out, $rcode); //Try to get ImageMagick "convert" program version number.
echo "Version return code is $rcode <br>"; //Print the return code: 0 if OK, nonzero if error.
echo alist($out); //Print the output of "convert -version"
echo '<br>';
echo '<b>This should test for ImageMagick version 5.x</b><br>';
echo '<b>Path: </b> /usr/bin/convert<br>';

exec("/usr/bin/convert -version", $out, $rcode); //Try to get ImageMagick "convert" program version number.
echo "Version return code is $rcode <br>"; //Print the return code: 0 if OK, nonzero if error.
echo alist($out); //Print the output of "convert -version"

echo '<br>';
echo '<b>This should test for ImageMagick version 6.x</b><br>';
echo '<b>Path: </b> /usr/local/bin/convert<br>';

exec("/usr/local/bin/convert -version", $out, $rcode); //Try to get ImageMagick "convert" program version number.
echo "Version return code is $rcode <br>"; //Print the return code: 0 if OK, nonzero if error.
echo alist($out); //Print the output of "convert -version";

?>

Here is another version of weighted_choice that uses numpy. Pass in the weights vector and it will return an array of 0's containing a 1 indicating which bin was chosen. The code defaults to just making a single draw but you can pass in the number of draws to be made and the counts per bin drawn will be returned.

If the weights vector does not sum to 1, it will be normalized so that it does.

import numpy as np

def weighted_choice(weights, n=1):
    if np.sum(weights)!=1:
        weights = weights/np.sum(weights)

    draws = np.random.random_sample(size=n)

    weights = np.cumsum(weights)
    weights = np.insert(weights,0,0.0)

    counts = np.histogram(draws, bins=weights)
    return(counts[0])

No method can be invoked on a object which is assigned a NULL value. It will give a nullPointerException. Hence, s2.length() is giving an exception.

There aren't any quotes. It's just VS debugger. Try printing to the console or saving to a file and you'll see. As a side note: always dispose disposable objects:

using (var stringWriter = new StringWriter())
using (var xmlTextWriter = XmlWriter.Create(stringWriter))
{
    xmlDoc.WriteTo(xmlTextWriter);
    xmlTextWriter.Flush();
    return stringWriter.GetStringBuilder().ToString();
}

I tried seangwright's solution (Edit 3)

That is not working for Observable that created by timer or interval.

However, i got it working by using another approach:

import { Component, OnDestroy, OnInit } from '@angular/core';
import 'rxjs/add/operator/takeUntil';
import { Subject } from 'rxjs/Subject';
import { Subscription } from 'rxjs/Subscription';
import 'rxjs/Rx';

import { MyThingService } from '../my-thing.service';

@Component({
   selector: 'my-thing',
   templateUrl: './my-thing.component.html'
})
export class MyThingComponent implements OnDestroy, OnInit {
   private subscriptions: Array<Subscription> = [];

  constructor(
     private myThingService: MyThingService,
   ) { }

  ngOnInit() {
    const newSubs = this.myThingService.getThings()
        .subscribe(things => console.log(things));
    this.subscriptions.push(newSubs);
  }

  ngOnDestroy() {
    for (const subs of this.subscriptions) {
      subs.unsubscribe();
   }
 }
}

You can expose the service in two different endpoints. the SOAP one can use the binding that support SOAP e.g. basicHttpBinding, the RESTful one can use the webHttpBinding. I assume your REST service will be in JSON, in that case, you need to configure the two endpoints with the following behaviour configuration

<endpointBehaviors>
  <behavior name="jsonBehavior">
    <enableWebScript/>
  </behavior>
</endpointBehaviors>

An example of endpoint configuration in your scenario is

<services>
  <service name="TestService">
    <endpoint address="soap" binding="basicHttpBinding" contract="ITestService"/>
    <endpoint address="json" binding="webHttpBinding"  behaviorConfiguration="jsonBehavior" contract="ITestService"/>
  </service>
</services>

so, the service will be available at

• http://www.example.com/soap
• http://www.example.com/json

Apply [WebGet] to the operation contract to make it RESTful. e.g.

public interface ITestService
{
   [OperationContract]
   [WebGet]
   string HelloWorld(string text)
}

Note, if the REST service is not in JSON, parameters of the operations can not contain complex type.

Reply to the post for SOAP and RESTful POX(XML)

For plain old XML as return format, this is an example that would work both for SOAP and XML.

[ServiceContract(Namespace = "http://test")]
public interface ITestService
{
    [OperationContract]
    [WebGet(UriTemplate = "accounts/{id}")]
    Account[] GetAccount(string id);
}

POX behavior for REST Plain Old XML

<behavior name="poxBehavior">
  <webHttp/>
</behavior>

Endpoints

<services>
  <service name="TestService">
    <endpoint address="soap" binding="basicHttpBinding" contract="ITestService"/>
    <endpoint address="xml" binding="webHttpBinding"  behaviorConfiguration="poxBehavior" contract="ITestService"/>
  </service>
</services>

Service will be available at

• http://www.example.com/soap
• http://www.example.com/xml

REST request try it in browser,

http://www.example.com/xml/accounts/A123

SOAP request client endpoint configuration for SOAP service after adding the service reference,

  <client>
    <endpoint address="http://www.example.com/soap" binding="basicHttpBinding"
      contract="ITestService" name="BasicHttpBinding_ITestService" />
  </client>

in C#

TestServiceClient client = new TestServiceClient();
client.GetAccount("A123");

Another way of doing it is to expose two different service contract and each one with specific configuration. This may generate some duplicates at code level, however at the end of the day, you want to make it working.

Having a "table" in memory that needs lookups, sorting, and arbitrary aggregation really does call out for SQL. You said you tried SQLite, but did you realize that SQLite can use an in-memory-only database?

connection = sqlite3.connect(':memory:')

Then you can create/drop/query/update tables in memory with all the functionality of SQLite and no files left over when you're done. And as of Python 2.5, sqlite3 is in the standard library, so it's not really "overkill" IMO.

Here is a sample of how one might create and populate the database:

import csv
import sqlite3

db = sqlite3.connect(':memory:')

def init_db(cur):
    cur.execute('''CREATE TABLE foo (
        Row INTEGER,
        Name TEXT,
        Year INTEGER,
        Priority INTEGER)''')

def populate_db(cur, csv_fp):
    rdr = csv.reader(csv_fp)
    cur.executemany('''
        INSERT INTO foo (Row, Name, Year, Priority)
        VALUES (?,?,?,?)''', rdr)

cur = db.cursor()
init_db(cur)
populate_db(cur, open('my_csv_input_file.csv'))
db.commit()

If you'd really prefer not to use SQL, you should probably use a list of dictionaries:

lod = [ ] # "list of dicts"

def populate_lod(lod, csv_fp):
    rdr = csv.DictReader(csv_fp, ['Row', 'Name', 'Year', 'Priority'])
    lod.extend(rdr)

def query_lod(lod, filter=None, sort_keys=None):
    if filter is not None:
        lod = (r for r in lod if filter(r))
    if sort_keys is not None:
        lod = sorted(lod, key=lambda r:[r[k] for k in sort_keys])
    else:
        lod = list(lod)
    return lod

def lookup_lod(lod, **kw):
    for row in lod:
        for k,v in kw.iteritems():
            if row[k] != str(v): break
        else:
            return row
    return None

Testing then yields:

>>> lod = []
>>> populate_lod(lod, csv_fp)
>>> 
>>> pprint(lookup_lod(lod, Row=1))
{'Name': 'Cat', 'Priority': '1', 'Row': '1', 'Year': '1998'}
>>> pprint(lookup_lod(lod, Name='Aardvark'))
{'Name': 'Aardvark', 'Priority': '1', 'Row': '4', 'Year': '2000'}
>>> pprint(query_lod(lod, sort_keys=('Priority', 'Year')))
[{'Name': 'Cat', 'Priority': '1', 'Row': '1', 'Year': '1998'},
 {'Name': 'Dog', 'Priority': '1', 'Row': '3', 'Year': '1999'},
 {'Name': 'Aardvark', 'Priority': '1', 'Row': '4', 'Year': '2000'},
 {'Name': 'Wallaby', 'Priority': '1', 'Row': '5', 'Year': '2000'},
 {'Name': 'Fish', 'Priority': '2', 'Row': '2', 'Year': '1998'},
 {'Name': 'Zebra', 'Priority': '3', 'Row': '6', 'Year': '2001'}]
>>> pprint(query_lod(lod, sort_keys=('Year', 'Priority')))
[{'Name': 'Cat', 'Priority': '1', 'Row': '1', 'Year': '1998'},
 {'Name': 'Fish', 'Priority': '2', 'Row': '2', 'Year': '1998'},
 {'Name': 'Dog', 'Priority': '1', 'Row': '3', 'Year': '1999'},
 {'Name': 'Aardvark', 'Priority': '1', 'Row': '4', 'Year': '2000'},
 {'Name': 'Wallaby', 'Priority': '1', 'Row': '5', 'Year': '2000'},
 {'Name': 'Zebra', 'Priority': '3', 'Row': '6', 'Year': '2001'}]
>>> print len(query_lod(lod, lambda r:1997 <= int(r['Year']) <= 2002))
6
>>> print len(query_lod(lod, lambda r:int(r['Year'])==1998 and int(r['Priority']) > 2))
0

Personally I like the SQLite version better since it preserves your types better (without extra conversion code in Python) and easily grows to accommodate future requirements. But then again, I'm quite comfortable with SQL, so YMMV.

Just keeping it simple

function isValidJsonString(tester) {
    //early existing
    if(/^\s*$|undefined/.test(tester) || !(/number|object|array|string|boolean/.test(typeof tester))) 
        {
        return false;
    };
//go ahead do you parsing via try catch
return true;

};

Your fns is a cellstr array. You need to index in to it with {} instead of () to get the single string out as char.

fns{i}
teststruct.(fns{i})

Indexing in to it with () returns a 1-long cellstr array, which isn't the same format as the char array that the ".(name)" dynamic field reference wants. The formatting, especially in the display output, can be confusing. To see the difference, try this.

name_as_char = 'a'
name_as_cellstr = {'a'}

You can use the confirmed validation rule.

$this->validate($request, [
    'name' => 'required|min:3|max:50',
    'email' => 'email',
    'vat_number' => 'max:13',
    'password' => 'required|confirmed|min:6',
]);

Something like this would work

#!/bin/sh

if [ -fe FILE ]
then 
    rm FILE
fi 

-f checks if it's a regular file

-e checks if the file exist

Introduction to if for more information

EDIT : -e used with -f is redundant, fo using -f alone should work too

If I imagined that you set android:configChanges in manifest.xml and create several directory for several language such as: values-fr OR values-nl, I could suggest this code(In Activity class):

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    Button btn = (Button) findViewById(R.id.btn);
    btn.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // change language by onclick a button
             Configuration newConfig = new Configuration();
             newConfig.locale = Locale.FRENCH;
             onConfigurationChanged(newConfig);
        }
    });
}

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);

    getBaseContext().getResources().updateConfiguration(newConfig, getBaseContext().getResources().getDisplayMetrics());
    setContentView(R.layout.main);
    setTitle(R.string.app_name);

    // Checks the active language
    if (newConfig.locale == Locale.ENGLISH) {
        Toast.makeText(this, "English", Toast.LENGTH_SHORT).show();
    } else if (newConfig.locale == Locale.FRENCH){
        Toast.makeText(this, "French", Toast.LENGTH_SHORT).show();
    }
}

I tested this code, It is correct.

1. Project > Generate Javadoc....

2. In the Javadoc command: field, browse to find javadoc.exe (usually at [path_to_jdk_directory]\bin\javadoc.exe).

3. Check the box next to the project/package/file for which you are creating the Javadoc.

4. In the Destination: field, browse to find the desired destination (for example, the root directory of the current project).

5. Click Finish.

You should now be able to find the newly generated Javadoc in the destination folder. Open index.html.

Here is some code (it's actually not Timsort as I originally thought, but it does work well) that does the trick without any boxing/unboxing. In my tests, it works 3-4 times faster than using Collections.sort with a List wrapper around the array.

// This code has been contributed by 29AjayKumar 
// from: https://www.geeksforgeeks.org/sort/

static final int sortIntArrayWithComparator_RUN = 32; 

// this function sorts array from left index to  
// to right index which is of size atmost RUN  
static void sortIntArrayWithComparator_insertionSort(int[] arr, IntComparator comparator, int left, int right) { 
    for (int i = left + 1; i <= right; i++)  
    { 
        int temp = arr[i]; 
        int j = i - 1; 
        while (j >= left && comparator.compare(arr[j], temp) > 0)
        { 
            arr[j + 1] = arr[j]; 
            j--; 
        } 
        arr[j + 1] = temp; 
    } 
} 

// merge function merges the sorted runs  
static void sortIntArrayWithComparator_merge(int[] arr, IntComparator comparator, int l, int m, int r) { 
    // original array is broken in two parts  
    // left and right array  
    int len1 = m - l + 1, len2 = r - m; 
    int[] left = new int[len1]; 
    int[] right = new int[len2]; 
    for (int x = 0; x < len1; x++)  
    { 
        left[x] = arr[l + x]; 
    } 
    for (int x = 0; x < len2; x++)  
    { 
        right[x] = arr[m + 1 + x]; 
    } 

    int i = 0; 
    int j = 0; 
    int k = l; 

    // after comparing, we merge those two array  
    // in larger sub array  
    while (i < len1 && j < len2)  
    { 
        if (comparator.compare(left[i], right[j]) <= 0)
        { 
            arr[k] = left[i]; 
            i++; 
        } 
        else 
        { 
            arr[k] = right[j]; 
            j++; 
        } 
        k++; 
    } 

    // copy remaining elements of left, if any  
    while (i < len1) 
    { 
        arr[k] = left[i]; 
        k++; 
        i++; 
    } 

    // copy remaining element of right, if any  
    while (j < len2)  
    { 
        arr[k] = right[j]; 
        k++; 
        j++; 
    } 
} 

// iterative sort function to sort the  
// array[0...n-1] (similar to merge sort)  
static void sortIntArrayWithComparator(int[] arr, IntComparator comparator) { sortIntArrayWithComparator(arr, lIntArray(arr), comparator); }
static void sortIntArrayWithComparator(int[] arr, int n, IntComparator comparator) { 
    // Sort individual subarrays of size RUN  
    for (int i = 0; i < n; i += sortIntArrayWithComparator_RUN)  
    { 
        sortIntArrayWithComparator_insertionSort(arr, comparator, i, Math.min((i + 31), (n - 1))); 
    } 

    // start merging from size RUN (or 32). It will merge  
    // to form size 64, then 128, 256 and so on ....  
    for (int size = sortIntArrayWithComparator_RUN; size < n; size = 2 * size)  
    { 
          
        // pick starting point of left sub array. We  
        // are going to merge arr[left..left+size-1]  
        // and arr[left+size, left+2*size-1]  
        // After every merge, we increase left by 2*size  
        for (int left = 0; left < n; left += 2 * size)  
        { 
              
            // find ending point of left sub array  
            // mid+1 is starting point of right sub array  
            int mid = Math.min(left + size - 1, n - 1);
            int right = Math.min(left + 2 * size - 1, n - 1); 

            // merge sub array arr[left.....mid] &  
            // arr[mid+1....right]  
            sortIntArrayWithComparator_merge(arr, comparator, left, mid, right); 
        } 
    } 
}

static int lIntArray(int[] a) {
  return a == null ? 0 : a.length;
}

static interface IntComparator {
  int compare(int a, int b);
}

From the official angular documentation

// Simple GET request example :
$http.get('/someUrl').
  success(function(data, status, headers, config) {
    // this callback will be called asynchronously
    // when the response is available
  }).
  error(function(data, status, headers, config) {
    // called asynchronously if an error occurs
    // or server returns response with an error status.
  });

As you can see first parameter for error callback is data an status is second.

Don't forget that you can treat pointers as iterators:

w_.assign(w, w + len);

Notice that this line:

lol = document.getElementById('lolz').value;

is before the actual <input> element on your markup:

<input type="text" name="enter" class="enter" value="" id="lolz"/>

Your code is parsed line by line, and the lol = ... line is evaluated before the browser knows about the existance of an input with id lolz. Thus, document.getElementById('lolz') will return null, and document.getElementById('lolz').value should cause an error.

Move that line inside the function, and it should work. This way, that line will only run when the function is called. And use var as others suggested, to avoid making it a global variable:

function kk(){
    var lol = document.getElementById('lolz').value;
    alert(lol);
}

You can also move the script to the end of the page. Moving all script blocks to the end of your HTML <body> is the standard practice today to avoid this kind of reference problem. It also tends to speed up page load, since scripts that take long to load and parse are processed after the HTML has been (mostly) displayed.

You don't really need jQuery for this as there is a Media API that provides you with all you need.

var video = document.getElementById('myVideo');
video.src = 'my_video_' + value + '.ogg';
video.load();

The Media API also contains a load() method which: "Causes the element to reset and start selecting and loading a new media resource from scratch."

(Ogg isn't the best format to use, as it's only supported by a limited number of browsers. I'd suggest using WebM and MP4 to cover all major browsers - you can use the canPlayType() function to decide on which one to play).

You can then wait for either the loadedmetadata or loadeddata (depending on what you want) events to fire:

video.addEventListener('loadeddata', function() {
   // Video is loaded and can be played
}, false);

<div class="small hidden-xs">
    Some Content Here
</div>

This also works for elements not necessarily used in a grid /small column. When it is rendered on larger screens the font-size will be smaller than your default text font-size.

This answer satisfies the question in the OP title (which is how I found this Q/A).

You have mixed up the concept of the Return Value and Output variable. 1- Output Variable:

Database----->:
create proc MySP
@a varchar(50),
@b varchar(50) output
AS
SET @Password = 
(SELECT Password
FROM dbo.tblUser
WHERE Login = @a)

C# ----->:

SqlConn.Open();
sqlcomm.CommandType = CommandType.StoredProcedure;

SqlParameter param = new SqlParameter("@a", SqlDbType.VarChar);
param.Direction = ParameterDirection.Input;//This is optional because Input is the default

param.Value = Username;
sqlcomm.Parameters.Add(param);

SqlParameter outputval = sqlcomm.Parameters.Add("@b", SqlDbType.VarChar);
outputval .Direction = ParameterDirection.Output//NOT ReturnValue;


string outputvalue = sqlcomm.Parameters["@b"].Value.ToString();

You can also try this filter

sharpen_filter = np.array([[0, -1, 0], [-1, 5, -1], [0, -1, 0]])
sharped_img = cv2.filter2D(image, -1, sharpen_filter)

Instead of %matplotlib inline,it is not a python script so we can write like this it will work from IPython import get_ipython get_ipython().run_line_magic('matplotlib', 'inline')

xml:space="preserve"

Works like a charm.

Edit: Wrong. Actually, it only works when the content is comprised of white spaces only.

Link

JAVA_HOME is not necessary if you start java and javac from the command line. But JAVA_HOME should point to the real jdk directory, C:\Program Files\Java\jdk1.7.0 in your case.

I'd never use the CLASSPATH environment variable outside of build scripts, especially not global defined. The -cp flag is better. But in your case, as you do not need additional libraries (rt.jardoesn't count), you won't need a classpath declaration. A missing -cp is equivalent to a -cp . and that's what you need here)

The HelloWorld class needs to be declared as public. This actually may be the cause for your problems. (I was pretty sure, that a source file needs one public class... or was it one public class at most ?)

<a onclick="MyFunc()">blabla..</a>

There is nothing more in @Html.ActionLink that you could utilize in this case. And razor is evel by itself, drop it from where you can.

In your example:

items.map! { |x| process_x url } # [1, 2, 3, 4, 5] => [1, nil, 3, nil, nil]

it does not look like the values have changed other than being replaced with nil. If that is the case, then:

items.select{|x| process_x url}

will suffice.

Simple solution would be as below. This is improvement of solution from vale.

private void dgMapTable_SelectionChanged(object sender, EventArgs e) 
{
    int active_map=0;
    if(dgMapTable.SelectedRows.Count>0)
        active_map = dgMapTable.SelectedRows[0].Index;
    // User code if required Process_ROW(active_map);
}

Note for other reader, for above code to work FullRowSelect selection mode for datagridview should be used. You may extend this to give message if more than two rows selected.

I've got the same problem on Eclipse 3.8.1. For me it worked to set the artifact type to executable:

Right click on the project -> C/C++ Build -> Settings -> Build Artifact -> Artifact Type: Executable

Finally rebuilding the project produced the Binaries entry in the Project Explorer.

Had the same problem where I specified data but the browser was sending requests to URL ending with [Object object].

You should have processData set to true.

processData: true, // You should comment this out if is false or set to true

You may use ReadFormattedLine subroutine for all kind of formatted input. For example, the command below read a password of 8 characters, display asterisks in the screen, and continue automatically with no need to press Enter:

call :ReadFormattedLine password="********" /M "Enter password (8 chars): "

This subroutine is written in pure Batch so it does not require any additional program, and it allows several formatted input operations, like read just numbers, convert letters to uppercase, etc. You may download ReadFormattedLine subroutine from Read a line with specific format.

EDIT 2018-08-18: New method to enter an "invisible" password

The FINDSTR command have a strange bug that happen when this command is used to show characters in color AND the output of such a command is redirected to CON device. For details on how use FINDSTR command to show text in color, see this topic.

When the output of this form of FINDSTR command is redirected to CON, something strange happens after the text is output in the desired color: all the text after it is output as "invisible" characters, although a more precise description is that the text is output as black text over black background. The original text will appear if you use COLOR command to reset the foreground and background colors of the entire screen. However, when the text is "invisible" we could execute a SET /P command, so all characters entered will not appear on the screen.

@echo off
setlocal

set /P "=_" < NUL > "Enter password"
findstr /A:1E /V "^$" "Enter password" NUL > CON
del "Enter password"
set /P "password="
cls
color 07
echo The password read is: "%password%"

you can generate curl error after its execution

$url = 'http://example.com';

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($ch);
if(curl_errno($ch)){
    echo 'Request Error:' . curl_error($ch);
}

and here are curl error code

if someone need more information about curl errors

<?php

    $error_codes=array(
    [1] => 'CURLE_UNSUPPORTED_PROTOCOL',
    [2] => 'CURLE_FAILED_INIT',
    [3] => 'CURLE_URL_MALFORMAT',
    [4] => 'CURLE_URL_MALFORMAT_USER',
    [5] => 'CURLE_COULDNT_RESOLVE_PROXY',
    [6] => 'CURLE_COULDNT_RESOLVE_HOST',
    [7] => 'CURLE_COULDNT_CONNECT',
    [8] => 'CURLE_FTP_WEIRD_SERVER_REPLY',
    [9] => 'CURLE_REMOTE_ACCESS_DENIED',
    [11] => 'CURLE_FTP_WEIRD_PASS_REPLY',
    [13] => 'CURLE_FTP_WEIRD_PASV_REPLY',
    [14]=>'CURLE_FTP_WEIRD_227_FORMAT',
    [15] => 'CURLE_FTP_CANT_GET_HOST',
    [17] => 'CURLE_FTP_COULDNT_SET_TYPE',
    [18] => 'CURLE_PARTIAL_FILE',
    [19] => 'CURLE_FTP_COULDNT_RETR_FILE',
    [21] => 'CURLE_QUOTE_ERROR',
    [22] => 'CURLE_HTTP_RETURNED_ERROR',
    [23] => 'CURLE_WRITE_ERROR',
    [25] => 'CURLE_UPLOAD_FAILED',
    [26] => 'CURLE_READ_ERROR',
    [27] => 'CURLE_OUT_OF_MEMORY',
    [28] => 'CURLE_OPERATION_TIMEDOUT',
    [30] => 'CURLE_FTP_PORT_FAILED',
    [31] => 'CURLE_FTP_COULDNT_USE_REST',
    [33] => 'CURLE_RANGE_ERROR',
    [34] => 'CURLE_HTTP_POST_ERROR',
    [35] => 'CURLE_SSL_CONNECT_ERROR',
    [36] => 'CURLE_BAD_DOWNLOAD_RESUME',
    [37] => 'CURLE_FILE_COULDNT_READ_FILE',
    [38] => 'CURLE_LDAP_CANNOT_BIND',
    [39] => 'CURLE_LDAP_SEARCH_FAILED',
    [41] => 'CURLE_FUNCTION_NOT_FOUND',
    [42] => 'CURLE_ABORTED_BY_CALLBACK',
    [43] => 'CURLE_BAD_FUNCTION_ARGUMENT',
    [45] => 'CURLE_INTERFACE_FAILED',
    [47] => 'CURLE_TOO_MANY_REDIRECTS',
    [48] => 'CURLE_UNKNOWN_TELNET_OPTION',
    [49] => 'CURLE_TELNET_OPTION_SYNTAX',
    [51] => 'CURLE_PEER_FAILED_VERIFICATION',
    [52] => 'CURLE_GOT_NOTHING',
    [53] => 'CURLE_SSL_ENGINE_NOTFOUND',
    [54] => 'CURLE_SSL_ENGINE_SETFAILED',
    [55] => 'CURLE_SEND_ERROR',
    [56] => 'CURLE_RECV_ERROR',
    [58] => 'CURLE_SSL_CERTPROBLEM',
    [59] => 'CURLE_SSL_CIPHER',
    [60] => 'CURLE_SSL_CACERT',
    [61] => 'CURLE_BAD_CONTENT_ENCODING',
    [62] => 'CURLE_LDAP_INVALID_URL',
    [63] => 'CURLE_FILESIZE_EXCEEDED',
    [64] => 'CURLE_USE_SSL_FAILED',
    [65] => 'CURLE_SEND_FAIL_REWIND',
    [66] => 'CURLE_SSL_ENGINE_INITFAILED',
    [67] => 'CURLE_LOGIN_DENIED',
    [68] => 'CURLE_TFTP_NOTFOUND',
    [69] => 'CURLE_TFTP_PERM',
    [70] => 'CURLE_REMOTE_DISK_FULL',
    [71] => 'CURLE_TFTP_ILLEGAL',
    [72] => 'CURLE_TFTP_UNKNOWNID',
    [73] => 'CURLE_REMOTE_FILE_EXISTS',
    [74] => 'CURLE_TFTP_NOSUCHUSER',
    [75] => 'CURLE_CONV_FAILED',
    [76] => 'CURLE_CONV_REQD',
    [77] => 'CURLE_SSL_CACERT_BADFILE',
    [78] => 'CURLE_REMOTE_FILE_NOT_FOUND',
    [79] => 'CURLE_SSH',
    [80] => 'CURLE_SSL_SHUTDOWN_FAILED',
    [81] => 'CURLE_AGAIN',
    [82] => 'CURLE_SSL_CRL_BADFILE',
    [83] => 'CURLE_SSL_ISSUER_ERROR',
    [84] => 'CURLE_FTP_PRET_FAILED',
    [84] => 'CURLE_FTP_PRET_FAILED',
    [85] => 'CURLE_RTSP_CSEQ_ERROR',
    [86] => 'CURLE_RTSP_SESSION_ERROR',
    [87] => 'CURLE_FTP_BAD_FILE_LIST',
    [88] => 'CURLE_CHUNK_FAILED');

    ?>

I had the same issue with the Android 10 emulator and I was able to solve the problem by following the steps below:

1. Go to Settings ? Network & internet ? Advanced ? Private DNS
2. Select Private DNS provider hostname
3. Enter: dns.google
4. Click Save

With this setup, you URL should work as expected.

//call Facebook onclick on your customized button on click by the following

FacebookSdk.sdkInitialize(this.getApplicationContext());

        callbackManager = CallbackManager.Factory.create();

        LoginManager.getInstance().registerCallback(callbackManager,
                new FacebookCallback<LoginResult>() {
                    @Override
                    public void onSuccess(LoginResult loginResult) {
                        Log.d("Success", "Login");

                    }

                    @Override
                    public void onCancel() {
                        Toast.makeText(MainActivity.this, "Login Cancel", Toast.LENGTH_LONG).show();
                    }

                    @Override
                    public void onError(FacebookException exception) {
                        Toast.makeText(MainActivity.this, exception.getMessage(), Toast.LENGTH_LONG).show();
                    }
                });

        setContentView(R.layout.activity_main);

        Button mycustomizeedbutton=(Button)findViewById(R.id.mycustomizeedbutton);

        mycustomizeedbutton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                  LoginManager.getInstance().logInWithReadPermissions(this, Arrays.asList("public_profile", "user_friends"));
            }
        });

    }

Here's how you can do it:

public static class Extensions
{
    public static IEnumerable<T> MyDistinct<T, V>(this IEnumerable<T> query,
                                                    Func<T, V> f, 
                                                    Func<IGrouping<V,T>,T> h=null)
    {
        if (h==null) h=(x => x.First());
        return query.GroupBy(f).Select(h);
    }
}

This method allows you to use it by specifying one parameter like .MyDistinct(d => d.Name), but it also allows you to specify a having condition as a second parameter like so:

var myQuery = (from x in _myObject select x).MyDistinct(d => d.Name,
        x => x.FirstOrDefault(y=>y.Name.Contains("1") || y.Name.Contains("2"))
        );

N.B. This would also allow you to specify other functions like for example .LastOrDefault(...) as well.

If you want to expose just the condition, you can have it even simpler by implementing it as:

public static IEnumerable<T> MyDistinct2<T, V>(this IEnumerable<T> query,
                                                Func<T, V> f,
                                                Func<T,bool> h=null
                                                )
{
    if (h == null) h = (y => true);
    return query.GroupBy(f).Select(x=>x.FirstOrDefault(h));
}

In this case, the query would just look like:

var myQuery2 = (from x in _myObject select x).MyDistinct2(d => d.Name,
                    y => y.Name.Contains("1") || y.Name.Contains("2")
                    );

N.B. Here, the expression is simpler, but note .MyDistinct2 uses .FirstOrDefault(...) implicitly.

Note: The examples above are using the following demo class

class MyObject
{
    public string Name;
    public string Code;
}

private MyObject[] _myObject = {
    new MyObject() { Name = "Test1", Code = "T"},
    new MyObject() { Name = "Test2", Code = "Q"},
    new MyObject() { Name = "Test2", Code = "T"},
    new MyObject() { Name = "Test5", Code = "Q"}
};

Yes, according to the specs, there is a way.

While I agree that Graeme Blackwood's should be the accepted answer, because it practically solves the issue, it should be noted that a fixed element can be positioned relatively to its container.

I noticed by accident that when applying

-webkit-transform: translateZ(0);

to the body, it made a fixed child relative to it (instead of the viewport). So my fixed elements left and top properties were now relative to the container.

So I did some research, and found that the issue was already been covered by Eric Meyer and even if it felt like a "trick", turns out that this is part of the specifications:

For elements whose layout is governed by the CSS box model, any value other than none for the transform results in the creation of both a stacking context and a containing block. The object acts as a containing block for fixed positioned descendants.

http://www.w3.org/TR/css3-transforms/

So, if you apply any transformation to a parent element, it will become the containing block.

But...

The problem is that the implementation seems buggy/creative, because the elements also stop behaving as fixed (even if this bit doesn't seem to be part of specification).

The same behavior will be found in Safari, Chrome and Firefox, but not in IE11 (where the fixed element will still remain fixed).

Another interesting (undocumented) thing is that when a fixed element is contained inside a transformed element, while its top and left properties will now be related to the container, respecting the box-sizing property, its scrolling context will extend over the border of the element, as if box-sizing was set to border-box. For some creative out there, this could possibly become a plaything :)

TEST

You could also ask git to create directory for you:

git init --bare test_repo.git

$(document).ready(function() {
    $("#raaagh").click(function() {
        $.ajax({
            url: 'ajax.php', //This is the current doc
            type: "POST",
            data: ({name: 145}),
            success: function(data) {
                console.log(data);
                $.ajax({
                    url:'ajax.php',
                    data: data,
                    dataType:'json',
                    success:function(data1) {
                        var y1=data1;
                        console.log(data1);
                    }
                });
            }
        });
    });
});

Use like this, first make a ajax call to get data, then your php function will return u the result which u wil get in data and pass that data to the new ajax call

services.AddAutoMapper(); didn't work for me. (I am using Asp.Net Core 2.0)

After configuring as below

   var config = new AutoMapper.MapperConfiguration(cfg =>
   {                 
       cfg.CreateMap<ClientCustomer, Models.Customer>();
   });

initialize the mapper IMapper mapper = config.CreateMapper();

and add the mapper object to services as a singleton services.AddSingleton(mapper);

this way I am able to add a DI to controller

  private IMapper autoMapper = null;

  public VerifyController(IMapper mapper)
  {              
   autoMapper = mapper;  
  }

and I have used as below in my action methods

  ClientCustomer customerObj = autoMapper.Map<ClientCustomer>(customer);

First, you should download the suitable version for your system from here: https://pecl.php.net/package/mcrypt/1.0.3/windows

Then, you should copy php_mcrypt.dll to ../xampp/php/ext/ and enable the extension by adding extension=mcrypt to your xampp/php/php.ini file.

See this bug: https://bugs.launchpad.net/ubuntu/+source/mysql-5.6/+bug/1435823

There seems to be a temporary fix there

Create a newfile /etc/tmpfiles.d/mysql.conf:

# systemd tmpfile settings for mysql
# See tmpfiles.d(5) for details

d /var/run/mysqld 0755 mysql mysql -

After reboot, mysql should start normally.

The closest you're likely to find is "Design Guidelines, Managed code and the .NET Framework" (http://blogs.msdn.com/brada/articles/361363.aspx) by Brad Abrams

Many standards are outlined here. The relevant section is 2.8 I think.

Are you looking for something like this?

    COLUMN_NAMES=['A','B','C','D','E','F','G']
    df = pd.DataFrame(columns=COLUMN_NAMES)
    df.columns

   Index(['A', 'B', 'C', 'D', 'E', 'F', 'G'], dtype='object')

datetime.datetime.strptime has problems with timezone parsing. Have a look at the dateutil package:

>>> from dateutil import parser
>>> parser.parse("Tue May 08 15:14:45 +0800 2012")
datetime.datetime(2012, 5, 8, 15, 14, 45, tzinfo=tzoffset(None, 28800))

I'm not on windows, but I think you can use the pgAdmin you just installed to configure a server connection and start the server.

a.txt

this is line 1
this is line 2

code:

Python 3.4.0 (default, Mar 20 2014, 22:43:40) 
[GCC 4.6.3] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> file = open('a.txt').read()
>>> file
>>> file.split('\n')
['this is line 1', 'this is line 2', '']

I'm on Linux, but I guess you just use \r\n on Windows and it would also work

Possibly too late to be of benefit now, but is this not the easiest way to do things?

SELECT     empName, projIDs = replace
                          ((SELECT Surname AS [data()]
                              FROM project_members
                              WHERE  empName = a.empName
                              ORDER BY empName FOR xml path('')), ' ', REQUIRED SEPERATOR)
FROM         project_members a
WHERE     empName IS NOT NULL
GROUP BY empName

The compiler won't optimise away the indexer (i.e. if you use row["value"] twice), so yes it is slightly quicker to do:

object value = row["value"];

and then use value twice; using .GetType() risks issues if it is null...

DBNull.Value is actually a singleton, so to add a 4th option - you could perhaps use ReferenceEquals - but in reality, I think you're worrying too much here... I don't think the speed different between "is", "==" etc is going to be the cause of any performance problem you are seeing. Profile your entire code and focus on something that matters... it won't be this.

Perm Gen stands for permanent generation which holds the meta-data information about the classes.

1. Suppose if you create a class name A, it's instance variable will be stored in heap memory and class A along with static classloaders will be stored in permanent generation.
2. Garbage collectors will find it difficult to clear or free the memory space stored in permanent generation memory. Hence it is always recommended to keep the permgen memory settings to the advisable limit.
3. JAVA8 has introduced the concept called meta-space generation, hence permgen is no longer needed when you use jdk 1.8 versions.

Try escaping the slash: someString.replace(/\//g, "-");

By the way - / is a (forward-)slash; \ is a backslash.

This error can occur especially when you are updating large libraries or libraries with a lot of dependencies. Composer can be quite memory hungry.

Be sure that your composer itself is updated to the latest version:

php composer.phar --self-update

You can increase the memory limit for composer temporarily by adding the composer memory limit environment variable:

COMPOSER_MEMORY_LIMIT=128MB php composer.phar update

Use the format “128M” for megabyte or “2G” for gigabyte. You can use the value “-1” to ignore the memory limit completely.

Another way would be to increase the PHP memory limit:

php -d memory_limit=512M composer.phar update ...

>>> a = set([6, 7, 8, 9, 10, 11, 12])
>>> sub_a = set([6, 9, 12])
>>> a - sub_a
set([8, 10, 11, 7])

 root/
   assets/
      lib/-------------------------libraries--------------------
          bootstrap/--------------Libraries can have js/css/images------------
              css/
              js/
              images/  
          jquery/
              js/
          font-awesome/
              css/
              images/
     common/--------------------common section will have application level resources             
          css/
          js/
          img/

 index.html

This is how I organized my application's static resources.

In General words,Abstraction is Just Hiding the complex things behind a particular Procedure to make the procedure look simple.
Example:Monitor ON/OFF::--The user doesn't need to know much about all the chips functioning that happens when Monitor is switched ON or OFF..All he needs to know is On Function ON-Monitor is On and on function OFF-Monitor is off...

Or Better Look for a car--Everyone Knows that There's a special Gear machine Which changes the gear,nobody bother to know what all functionality undergoes for a gear to change..So,That's abstraction(avoiding unwanted implementations to prevent Complexity).

So,If a developer provides a good abstraction, users won't be tempted to peek at the object's internal mechanisms.

Abstraction is achieved by making class abstract having one or more methods abstract. Which is nothing but essential characteristic which should be implemented by the class extending it. e.g. when you inventing/designing a car you define a characteristics like car should have 4 doors, break, steering wheel etc… so anyone uses this design should include this characteristics. Implementation is not the head each of abstraction. It will just define characteristics which should be included.

Encapsulation is restricting a user to follow a particular procedure to access control of a particular process.It Just provides safety and ensures system robustness.

Example:We can consider The HR in a company as a person that works on the principle of Encapsulation.i.e. we cannot talk to other departments directly we need to communicate through them through HR.This ensures security and better maintenance of company's records.

Together we can take example of a UNDER CONSTRUCTION BUILDING..where we can say that things like 'no. of managers' required,Types of Materials,No of workers etc as abstraction as they need to there in every Building Construction.

But,at the same time,Inclusion of every such field into a CONTRACTOR which acts as a mediator between the workers and the Building-Investor can be looked upon as Encapsulation. As,It hides all the above properties into one Entity.

Hence If you would have understood till now you can say that abstraction is just a subset of ENCAPSULATION.i.e.Every entity that performs abstraction is encapsulated internally but every thing that shows encapsulation need not be abstraction always.

e.g. .ToString() Method defined in almost every class is implementation of Abstraction because We don't the functionaltiy Within,all we care is that it changes almost everything to string.And as it assembles a s a unit,it is encapsulated too..But,The private members that we hide and access through Properties is an example of encapsulation only as it is done basically keeping data security in mindd..!!

Hope This answers your Question..!!

I think this should be java.net.SocketException as its definition is stated for a TCP error.

/**
 * Thrown to indicate that there is an error in the underlying 
 * protocol, such as a TCP error. 
 *
 * @author  Jonathan Payne
 * @version %I%, %G%
 * @since   JDK1.0
 */
public 
class SocketException extends IOException {

There are a few npm libraries for cancellable promises.

1. p-cancelable https://github.com/sindresorhus/p-cancelable

2. cancelable-promise https://github.com/alkemics/CancelablePromise

as noted here, this is what worked best for me:

sudo apt-get install python3 python3-pip python3-setuptools

sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 10

This should work with lambda expression:

personList.Distinct().ToDictionary(i => i.FirstandLastName, i => i);

So, is that a behavior to expect, a bug

Truth be told I am not sure. It looks like parser is interpreting count not as a column name but a function and expects following parentheses. Looks like a bug or at least a serious limitation of the parser.

is there a canonical way to go around?

Some options have been already mentioned by Herman and mattinbits so here more SQLish approach from me:

import org.apache.spark.sql.functions.count

df.groupBy("x").agg(count("*").alias("cnt")).where($"cnt"  > 2)

You can just pass it

def my_function(my_data):
    my_data["schoolname"] = "something"
    print my_data

or if you really want to

def my_function(**kwargs):
    kwargs["schoolname"] = "something"
    print kwargs

Looks like some changes to SASS have made possible what you've initially tried doing:

@import "../subdir/common";

We even got this to work for some totally unrelated folder located in c:\projects\sass:

@import "../../../../../../../../../../projects/sass/common";

Just add enough ../ to be sure you'll end up at the drive root and you're good to go.

Of course, this solution is far from pretty, but I couldn't get an import from a totally different folder to work, neither using I c:\projects\sass nor setting the environment variable SASS_PATH (from: :load_paths reference) to that same value.

use your code within

  <script type="text/javascript">
     function window.onload()
       {

        var d = new Date()
        var gmtOffSet = -d.getTimezoneOffset();
        var gmtHours = Math.floor(gmtOffSet / 60);
        var GMTMin = Math.abs(gmtOffSet % 60);
        var dot = ".";
        var retVal = "" + gmtHours + dot + GMTMin;
       document.getElementById('<%= offSet.ClientID%>').value = retVal;

      }
  </script>

I been seeking the same thing without using some unsupported PHP class. Excel CSV dosn't always use the quote separators and escapes the quotes using "" because the algorithm was probably made back the 80's or something. After looking at several .csv parsers in the comments section on PHP.NET, I seen ones that even used callbacks or eval'd code and they either didnt work like needed or simply didnt work at all. So, I wrote my own routines for this and they work in the most basic PHP configuration. The array keys can either be numeric or named as the fields given in the header row. Hope this helps.

    function SW_ImplodeCSV(array $rows, $headerrow=true, $mode='EXCEL', $fmt='2D_FIELDNAME_ARRAY')
    // SW_ImplodeCSV - returns 2D array as string of csv(MS Excel .CSV supported)
    // AUTHOR: [email protected]
    // RELEASED: 9/21/13 BETA
      { $r=1; $row=array(); $fields=array(); $csv="";
        $escapes=array('\r', '\n', '\t', '\\', '\"');  //two byte escape codes
        $escapes2=array("\r", "\n", "\t", "\\", "\""); //actual code

        if($mode=='EXCEL')// escape code = ""
         { $delim=','; $enclos='"'; $rowbr="\r\n"; }
        else //mode=STANDARD all fields enclosed
           { $delim=','; $enclos='"'; $rowbr="\r\n"; }

          $csv=""; $i=-1; $i2=0; $imax=count($rows);

          while( $i < $imax )
          {
            // get field names
            if($i == -1)
             { $row=$rows[0];
               if($fmt=='2D_FIELDNAME_ARRAY')
                { $i2=0; $i2max=count($row);
                  while( list($k, $v) = each($row) )
                   { $fields[$i2]=$k;
                     $i2++;
                   }
                }
               else //if($fmt='2D_NUMBERED_ARRAY')
                { $i2=0; $i2max=(count($rows[0]));
                  while($i2<$i2max)
                   { $fields[$i2]=$i2;
                     $i2++;
                   }
                }

               if($headerrow==true) { $row=$fields; }
               else                 { $i=0; $row=$rows[0];}
             }
            else
             { $row=$rows[$i];
             }

            $i2=0;  $i2max=count($row); 
            while($i2 < $i2max)// numeric loop (order really matters here)
            //while( list($k, $v) = each($row) )
             { if($i2 != 0) $csv=$csv.$delim;

               $v=$row[$fields[$i2]];

               if($mode=='EXCEL') //EXCEL 2quote escapes
                    { $newv = '"'.(str_replace('"', '""', $v)).'"'; }
               else  //STANDARD
                    { $newv = '"'.(str_replace($escapes2, $escapes, $v)).'"'; }
               $csv=$csv.$newv;
               $i2++;
             }

            $csv=$csv."\r\n";

            $i++;
          }

         return $csv;
       }

    function SW_ExplodeCSV($csv, $headerrow=true, $mode='EXCEL', $fmt='2D_FIELDNAME_ARRAY')
     { // SW_ExplodeCSV - parses CSV into 2D array(MS Excel .CSV supported)
       // AUTHOR: [email protected]
       // RELEASED: 9/21/13 BETA
       //SWMessage("SW_ExplodeCSV() - CALLED HERE -");
       $rows=array(); $row=array(); $fields=array();// rows = array of arrays

       //escape code = '\'
       $escapes=array('\r', '\n', '\t', '\\', '\"');  //two byte escape codes
       $escapes2=array("\r", "\n", "\t", "\\", "\""); //actual code

       if($mode=='EXCEL')
        {// escape code = ""
          $delim=','; $enclos='"'; $esc_enclos='""'; $rowbr="\r\n";
        }
       else //mode=STANDARD 
        {// all fields enclosed
          $delim=','; $enclos='"'; $rowbr="\r\n";
        }

       $indxf=0; $indxl=0; $encindxf=0; $encindxl=0; $enc=0; $enc1=0; $enc2=0; $brk1=0; $rowindxf=0; $rowindxl=0; $encflg=0;
       $rowcnt=0; $colcnt=0; $rowflg=0; $colflg=0; $cell="";
       $headerflg=0; $quotedflg=0;
       $i=0; $i2=0; $imax=strlen($csv);   

       while($indxf < $imax)
         {
           //find first *possible* cell delimiters
           $indxl=strpos($csv, $delim, $indxf);  if($indxl===false) { $indxl=$imax; }
           $encindxf=strpos($csv, $enclos, $indxf); if($encindxf===false) { $encindxf=$imax; }//first open quote
           $rowindxl=strpos($csv, $rowbr, $indxf); if($rowindxl===false) { $rowindxl=$imax; }

           if(($encindxf>$indxl)||($encindxf>$rowindxl))
            { $quoteflg=0; $encindxf=$imax; $encindxl=$imax;
              if($rowindxl<$indxl) { $indxl=$rowindxl; $rowflg=1; }
            }
           else 
            { //find cell enclosure area (and real cell delimiter)
              $quoteflg=1;
              $enc=$encindxf; 
              while($enc<$indxl) //$enc = next open quote
               {// loop till unquoted delim. is found
                 $enc=strpos($csv, $enclos, $enc+1); if($enc===false) { $enc=$imax; }//close quote
                 $encindxl=$enc; //last close quote
                 $indxl=strpos($csv, $delim, $enc+1); if($indxl===false)  { $indxl=$imax; }//last delim.
                 $enc=strpos($csv, $enclos, $enc+1); if($enc===false) { $enc=$imax; }//open quote
                 if(($indxl==$imax)||($enc==$imax)) break;
               }
              $rowindxl=strpos($csv, $rowbr, $enc+1); if($rowindxl===false) { $rowindxl=$imax; }
              if($rowindxl<$indxl) { $indxl=$rowindxl; $rowflg=1; }
            }

           if($quoteflg==0)
            { //no enclosured content - take as is
              $colflg=1;
              //get cell 
             // $cell=substr($csv, $indxf, ($indxl-$indxf)-1);
              $cell=substr($csv, $indxf, ($indxl-$indxf));
            }
           else// if($rowindxl > $encindxf)
            { // cell enclosed
              $colflg=1;

             //get cell - decode cell content
              $cell=substr($csv, $encindxf+1, ($encindxl-$encindxf)-1);

              if($mode=='EXCEL') //remove EXCEL 2quote escapes
                { $cell=str_replace($esc_enclos, $enclos, $cell);
                }
              else //remove STANDARD esc. sceme
                { $cell=str_replace($escapes, $escapes2, $cell);
                }
            }

           if($colflg)
            {// read cell into array
              if( ($fmt=='2D_FIELDNAME_ARRAY') && ($headerflg==1) )
               { $row[$fields[$colcnt]]=$cell; }
              else if(($fmt=='2D_NUMBERED_ARRAY')||($headerflg==0))
               { $row[$colcnt]=$cell; } //$rows[$rowcnt][$colcnt] = $cell;

              $colcnt++; $colflg=0; $cell="";
              $indxf=$indxl+1;//strlen($delim);
            }
           if($rowflg)
            {// read row into big array
              if(($headerrow) && ($headerflg==0))
                {  $fields=$row;
                   $row=array();
                   $headerflg=1;
                }
              else
                { $rows[$rowcnt]=$row;
                  $row=array();
                  $rowcnt++; 
                }
               $colcnt=0; $rowflg=0; $cell="";
               $rowindxf=$rowindxl+2;//strlen($rowbr);
               $indxf=$rowindxf;
            }

           $i++;
           //SWMessage("SW_ExplodeCSV() - colcnt = ".$colcnt."   rowcnt = ".$rowcnt."   indxf = ".$indxf."   indxl = ".$indxl."   rowindxf = ".$rowindxf);
           //if($i>20) break;
         }

       return $rows;
     }

...bob can now go back to his speadsheets

This lesson from the Java tutorial explains each Swing component in detail, with examples and API links.

Always for Ubuntu/Debian, chjortlund's answer it's very good but not perfect, since this way you get an unoptimized BLAS library. You have simply to do:

sudo apt install libatlas-base-dev

and voila'!

Source

From Facebook's spec, use a code like this:

<meta property="og:image" content="http://siim.lepisk.com/wp-content/uploads/2011/01/siim-blog-fb.png" />

Source: Facebook Share

I find that if I try things that others say do not work, it's how I learn the most.

<p>&nbsp;</p>
<p>README.txt</p>
<p>&nbsp;</p>
<div id="list">
  <p><iframe src="README.txt" frameborder="0" height="400"
      width="95%"></iframe></p>
</div>

This worked for me. I used the yellow background-color that I set in the stylesheet.

#list  p {
    font: arial;
    font-size: 14px;
    background-color: yellow ;
}

What you're doing is a static include. A static include is resolved at compile time, and may thus not use a parameter value, which is only known at execution time.

What you need is a dynamic include:

<jsp:include page="..." />

Note that you should use the JSP EL rather than scriptlets. It also seems that you're implementing a central controller with index.jsp. You should use a servlet to do that instead, and dispatch to the appropriate JSP from this servlet. Or better, use an existing MVC framework like Stripes or Spring MVC.

Don't use "new Date()", because it takes the input date string as local time:

new Date('11/08/2010').getTime()-new Date('11/07/2010').getTime();  //90000000
new Date('11/07/2010').getTime()-new Date('11/06/2010').getTime();  //86400000

we should use "NewDate()", it takes the input as GMT time:

function NewDate(str)
         {str=str.split('-');
          var date=new Date();
          date.setUTCFullYear(str[0], str[1]-1, str[2]);
          date.setUTCHours(0, 0, 0, 0);
          return date;
         }
NewDate('2010-11-07').toGMTString();
NewDate('2010-11-08').toGMTString();

As the instruction said "might need gpg2"

In mac, you can try install it with homebrew

$ brew install gpg2 

Append .done() to your ajax request.

$.ajax({
  url: "test.html",
  context: document.body
}).done(function() { //use this
  alert("DONE!");
});

See the JQuery Doc for .done()

For those using Cobertura and only have the Coverage Session View like I do,just try closing Eclipse and starting it up again. This got rid of the highlighting for me.

FOR EXAMPLE YOU HAVE RECIEVED JASON DATA FROM SERVER.

                var obj = JSON.parse(msg);
                var tableString ="<table id='tbla'>";
                tableString +="<th><td>Name<td>City<td>Birthday</th>";


                for (var i=0; i<obj.length; i++){
                    //alert(obj[i].name);
                    tableString +=gg_stringformat("<tr><td>{0}<td>{1}<td>{2}</tr>",obj[i].name, obj[i].age, obj[i].birthday);
                }
                tableString +="</table>";
                alert(tableString);
                $('#divb').html(tableString);

HERE IS THE CODE FOR gg_stringformat

function gg_stringformat() {
var argcount = arguments.length,
    string,
    i;

if (!argcount) {
    return "";
}
if (argcount === 1) {
    return arguments[0];
}
string = arguments[0];
for (i = 1; i < argcount; i++) {
    string = string.replace(new RegExp('\\{' + (i - 1) + '}', 'gi'), arguments[i]);
}
return string;

}

Can you change the if condition to this:

if (!is.na(comments[l])) print(comments[l]);

You can only check for NA values with is.na().

l = [4,76,2,8,6,4,3,7,2,1]
l = l[:5]

Instead of accepting a self parameter, class methods take a cls parameter that points to the class—and not the object instance—when the method is called. Since the class method only has access to this cls argument, it can’t modify object instance state. That would require access to self . However, class methods can still modify class state that applies across all instances of the class.

-Python Tricks

Detect the what type of network and getting the boolean value of isconnected or not use below snippet

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.telephony.TelephonyManager;
public class NetworkManagerUtils {

/**
 * Get the network info
 * @param context
 * @return
 */
public static NetworkInfo getNetworkInfo(Context context){
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    return cm.getActiveNetworkInfo();
}

/**
 * Check if there is any connectivity
 * @param context
 * @return
 */
public static boolean isConnected(Context context){
    NetworkInfo info = NetworkManagerUtils.getNetworkInfo(context);
    return (info != null && info.isConnected());
}

/**
 * Check if there is any connectivity to a Wifi network
 * @param context.
 * @param type
 * @return
 */
public static boolean isConnectedWifi(Context context){
    NetworkInfo info = NetworkManagerUtils.getNetworkInfo(context);
    return (info != null && info.isConnected() && info.getType() == ConnectivityManager.TYPE_WIFI);
}

/**
 * Check if there is any connectivity to a mobile network
 * @param context
 * @param type
 * @return
 */
public static boolean isConnectedMobile(Context context){
    NetworkInfo info = NetworkManagerUtils.getNetworkInfo(context);
    return (info != null && info.isConnected() && info.getType() == ConnectivityManager.TYPE_MOBILE);
}

/**
 * Check if there is fast connectivity
 * @param context
 * @return
 */
public static boolean isConnectedFast(Context context){
    NetworkInfo info = NetworkManagerUtils.getNetworkInfo(context);
    return (info != null && info.isConnected() && NetworkManagerUtils.isConnectionFast(info.getType(),info.getSubtype()));
}

/**
 * Check if the connection is fast
 * @param type
 * @param subType
 * @return
 */
public static boolean isConnectionFast(int type, int subType){
    if(type== ConnectivityManager.TYPE_WIFI){
        return true;
    }else if(type==ConnectivityManager.TYPE_MOBILE){
        switch(subType){
            case TelephonyManager.NETWORK_TYPE_1xRTT:
                return false; // ~ 50-100 kbps
            case TelephonyManager.NETWORK_TYPE_CDMA:
                return false; // ~ 14-64 kbps
            case TelephonyManager.NETWORK_TYPE_EDGE:
                return false; // ~ 50-100 kbps
            case TelephonyManager.NETWORK_TYPE_EVDO_0:
                return true; // ~ 400-1000 kbps
            case TelephonyManager.NETWORK_TYPE_EVDO_A:
                return true; // ~ 600-1400 kbps
            case TelephonyManager.NETWORK_TYPE_GPRS:
                return false; // ~ 100 kbps
            case TelephonyManager.NETWORK_TYPE_HSDPA:
                return true; // ~ 2-14 Mbps
            case TelephonyManager.NETWORK_TYPE_HSPA:
                return true; // ~ 700-1700 kbps
            case TelephonyManager.NETWORK_TYPE_HSUPA:
                return true; // ~ 1-23 Mbps
            case TelephonyManager.NETWORK_TYPE_UMTS:
                return true; // ~ 400-7000 kbps
            /*
             * Above API level 7, make sure to set android:targetSdkVersion
             * to appropriate level to use these
             */
            case TelephonyManager.NETWORK_TYPE_EHRPD: // API level 11
                return true; // ~ 1-2 Mbps
            case TelephonyManager.NETWORK_TYPE_EVDO_B: // API level 9
                return true; // ~ 5 Mbps
            case TelephonyManager.NETWORK_TYPE_HSPAP: // API level 13
                return true; // ~ 10-20 Mbps
            case TelephonyManager.NETWORK_TYPE_IDEN: // API level 8
                return false; // ~25 kbps
            case TelephonyManager.NETWORK_TYPE_LTE: // API level 11
                return true; // ~ 10+ Mbps
            // Unknown
            case TelephonyManager.NETWORK_TYPE_UNKNOWN:
            default:
                return false;
        }
    }else{
        return false;
    }
}
public static String getNetworkClass(Context context) {
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo info = cm.getActiveNetworkInfo();
    if (info == null || !info.isConnected())
        return "-"; // not connected
    if (info.getType() == ConnectivityManager.TYPE_WIFI)
        return "WIFI";
    if (info.getType() == ConnectivityManager.TYPE_MOBILE) {
        int networkType = info.getSubtype();
        switch (networkType) {
            case TelephonyManager.NETWORK_TYPE_GPRS:
            case TelephonyManager.NETWORK_TYPE_EDGE:
            case TelephonyManager.NETWORK_TYPE_CDMA:
            case TelephonyManager.NETWORK_TYPE_1xRTT:
            case TelephonyManager.NETWORK_TYPE_IDEN:     // api< 8: replace by 11
            case TelephonyManager.NETWORK_TYPE_GSM:      // api<25: replace by 16
                return "2G";
            case TelephonyManager.NETWORK_TYPE_UMTS:
            case TelephonyManager.NETWORK_TYPE_EVDO_0:
            case TelephonyManager.NETWORK_TYPE_EVDO_A:
            case TelephonyManager.NETWORK_TYPE_HSDPA:
            case TelephonyManager.NETWORK_TYPE_HSUPA:
            case TelephonyManager.NETWORK_TYPE_HSPA:
            case TelephonyManager.NETWORK_TYPE_EVDO_B:   // api< 9: replace by 12
            case TelephonyManager.NETWORK_TYPE_EHRPD:    // api<11: replace by 14
            case TelephonyManager.NETWORK_TYPE_HSPAP:    // api<13: replace by 15
            case TelephonyManager.NETWORK_TYPE_TD_SCDMA: // api<25: replace by 17
                return "3G";
            case TelephonyManager.NETWORK_TYPE_LTE:      // api<11: replace by 13
            case TelephonyManager.NETWORK_TYPE_IWLAN:    // api<25: replace by 18
            case 19: // LTE_CA
                return "4G";
            default:
                return "?";
        }
    }
    return "?";
}
}

use this following the class pass the context you will the get network status like network type,fast network,etc.

When using instanceof, you need to know the class of B at compile time. When using isAssignableFrom() it can be dynamic and change during runtime.

If what you're saying is that you want to get all inputs inside a form that have a value without worrying about the input type, try this:

Example: http://jsfiddle.net/nfLfa/

var $inputs = $('form').find(':checked,:selected,:text,textarea').filter(function() {
    return $.trim( this.value ) != '';
});

Now you should have a set of input elements that have some value.

You can put the values in an array:

var array = $inputs.map(function(){
    return this.value;
}).get();

Or you could serialize them:

var serialized = $inputs.serialize();

My library Time4J offers a pattern-based solution (similar to Apache DurationFormatUtils, but more flexible):

Duration<ClockUnit> duration =
    Duration.of(-573421, ClockUnit.SECONDS) // input in seconds only
    .with(Duration.STD_CLOCK_PERIOD); // performs normalization to h:mm:ss-structure
String fs = Duration.formatter(ClockUnit.class, "+##h:mm:ss").format(duration);
System.out.println(fs); // output => -159:17:01

This code demonstrates the capabilities to handle hour overflow and sign handling, see also the API of duration-formatter based on pattern.

Here is a simplistic example of streaming a file:

using System.IO;
using Microsoft.AspNetCore.Mvc;

[HttpGet("{id}")]
public async Task<FileStreamResult> Download(int id)
{
    var path = "<Get the file path using the ID>";
    var stream = File.OpenRead(path);
    return new FileStreamResult(stream, "application/octet-stream");
}

Note:

Be sure to use FileStreamResult from Microsoft.AspNetCore.Mvc and not from System.Web.Mvc.

Another free option is jmeld: http://keeskuip.home.xs4all.nl/jmeld/

It's a java tool and could therefore be used on several platforms.

But (as Preet mentioned in his answer), free is not always the best option. The best diff/merge tool I ever came across is Araxis Merge. Standard edition is available for 99 EUR which is not that much.

They also provide a documentation for how to integrate Araxis with msysGit.

If you want to stick to a free tool, JMeld comes pretty close to Araxis.